HPAVC

home *** CD-ROM | disk | FTP | other *** search

/ HPAVC / HPAVC CD-ROM.iso / pc / INTER53A.ZIP / INTERRUP.D < prev next >

Wrap

Text File | 1997-01-12 | 351.6 KB | 10,701 lines

Interrupt List, part 4 of 16 Copyright (c) 1989,1990,1991,1992,1993,1994,1995,1996,1997 Ralf Brown --------K-16FF------------------------------- INT 16 - KEYBOARD - KBUF extensions - ADD KEY TO TAIL OF KEYBOARD BUFFER AH = FFh DX = scan code Return: AL = status 00h success 01h failure Program: KBUF is a keyboard buffer expander by Mark Adler SeeAlso: AH=05h --------V-16FF------------------------------- INT 16 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY ZOOM INTERRUPT AH = FFh Return: AL = interrupt number to which BIOS keyboard handler has been relocated AL+1 = Zoom interrupt number BX = hotkey Notes: the default interrupts are 60h for keyboard and 61h for Zoom interrupt; the default hot key is F10 not all vendors include the Tseng TSR which supports these functions SeeAlso: INT 61/AX=0000h"OPTIMA",INT 61/AX=0005h"OPTIMA" Index: hotkeys;OPTIMA 1024 VGA ----------16FF--BH00------------------------- INT 16 - FREEZE.COM - INSTALLATION CHECK AH = FFh BH = 00h Return: BH = FFh if installed Program: FREEZE is a PC Magazine utility --------d-16FF70BX0000----------------------- INT 16 U - PC Tools v8+ DRIVEMAP - INSTALLATION CHECK AX = FF70h BX = 0000h CX = 4C69h ('Li') DX = 6E6Bh ('nk') Return: AX = 0000h CX = 4350h ('CP') DH = major version DL = minor version Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives SeeAlso: AX=FF70h/BX=0001h,AX=FF70h/BX=0002h --------d-16FF70BX0001----------------------- INT 16 U - PC Tools v8+ DRIVEMAP - ??? AX = FF70h BX = 0001h DL = ??? Return: AX = ??? DH = ??? SeeAlso: AX=FF70h/BX=0000h,AX=FF70h/BX=0002h --------d-16FF70BX0002----------------------- INT 16 U - PC Tools v8+ DRIVEMAP - ??? AX = FF70h BX = 0002h CX = ??? DX = ??? Return: AX = ??? or FFFEh/FFFFh on error DL = ??? BUG: DRIVEMAP will branch to random locations for BX values other than those listed above for v8.0-9.0 because a) the incorrect register is range-tested, resulting in BX=0003h-5CD6h being accepted as valid function numbers, and b) the conditional which branches on invalid function numbers jumps to the following instruction, becoming a NOP SeeAlso: INT 2F/AX=9203h"DRIVEMAP" Index: installation check;DRIVEMAP --------T-16FF80BX0000----------------------- INT 16 U - PC Tools v8+ CPTASK - INSTALLATION CHECK AX = FF80h BX = 0000h CX = 0000h DX = 0000h Return: CX = 5555h if installed Program: CPTASK is a task switcher by Central Point Software --------T-16FF80BX0001----------------------- INT 16 U - PC Tools v8+ CPTASK - GET ??? AX = FF80h BX = 0001h ??? Return: DX:SI -> task list??? (ten entries of 70h bytes in v9.0) BX = ??? (PSP segment of resident code???) --------T-16FF80BX0002----------------------- INT 16 U - PC Tools v8+ CPTASK - GET ??? AX = FF80h BX = 0002h Return: DX:SI -> ??? --------T-16FF80BX0003----------------------- INT 16 U - PC Tools v8+ CPTASK - GET ??? FLAGS AX = FF80h BX = 0003h Return: AX = flags (see #0514) SeeAlso: AX=FF80h/BX=0004h,AX=FF80h/BX=0006h Bitfields for CPTASK flags: Bit(s) Description (Table 0514) 10 ??? 13 ??? 14 ??? 15 ??? --------T-16FF80BX0004----------------------- INT 16 U - PC Tools v8+ CPTASK - SET ??? AX = FF80h BX = 0004h CX = new value of ??? Return: ??? Note: this function also sets bit 14 of the flags word returned by AX=FF80h/BX=0003h --------T-16FF80BX0005----------------------- INT 16 U - PC Tools v8+ CPTASK - GET NUMBER OF ACTIVE TASKS??? AX = FF80h BX = 0005h Return: AX = number of active tasks??? --------T-16FF80BX0006----------------------- INT 16 U - PC Tools v8+ CPTASK - GET AND CLEAR ??? FLAG AX = FF80h BX = 0006h Return: AX = old state (0000h clear, 0001h set) Note: the tested flag is bit 13 of the flags returned by AX=FF80h/BX=0003h --------T-16FF80BX0007----------------------- INT 16 U - PC Tools v8+ CPTASK - ??? AX = FF80h BX = 0007h ES:DI -> ??? ??? Return: ??? --------T-16FF80BX0008----------------------- INT 16 U - PC Tools v8+ CPTASK - ??? AX = FF80h BX = 0008h ??? Return: ??? --------T-16FF80BX0009----------------------- INT 16 U - PC Tools v8+ CPTASK - GET ??? AX = FF80h BX = 0009h Return: CL = ??? CH = ??? (01h or 02h) --------T-16FF80BX000A----------------------- INT 16 U - PC Tools v9+ CPTASK - SET ??? AX = FF80h BX = 000Ah DS:SI -> 128-byte buffer containing ??? --------T-16FF80BX000B----------------------- INT 16 U - PC Tools v9+ CPTASK - SET ??? AX = FF80h BX = 000Bh DX = index of ??? task (1-10) --------T-16FF80BX000C----------------------- INT 16 U - PC Tools v9+ CPTASK - SET IDLE??? DELAY AX = FF80h BX = 000Ch CX = new delay time in minutes --------T-16FF80BX4350----------------------- INT 16 U - PC Tools v8+ CPTASK - UNINSTALL AX = FF80h BX = 4350h ('CP') CX = 5354h ('ST') Return: never returns; terminates all tasks and exits to program originally calling CPTASK --------U-16FF90----------------------------- INT 16 U - PC Tools v8+ DESKTOP - ??? AX = FF90h ??? Return: ??? Note: available only when popped up --------U-16FF91----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF91h ??? Return: AX = 0000h Note: calls AX=FFFDh after ??? SeeAlso: AX=FF92h,AX=FFFDh --------U-16FF92----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF92h ??? Return: AX = 0000h Note: like AX=FF91h, but temporarily sets ??? to 3 SeeAlso: AX=FF91h,AX=FFFDh --------U-16FF93----------------------------- INT 16 U - PC Tools v7+ DESKTOP - SET ??? FLAG AX = FF93h --------U-16FF94----------------------------- INT 16 U - PC Tools v7+ DESKTOP - SET ??? AX = FF94h CX = ??? (default 0017h) --------U-16FF95----------------------------- INT 16 U - PC Tools v7+ DESKTOP - SET ??? AX = FF95h BX = ??? --------U-16FF96----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF96h CL = ??? Return: AX = ??? --------U-16FF97----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF97h DS:DX -> buffer for ??? (see #0515) Return: ??? Format of PC Tools DESKTOP buffer: Offset Size Description (Table 0515) 00h 48 BYTEs ??? 30h 128 BYTEs ??? --------U-16FF98----------------------------- INT 16 U - PC Tools v7+ DESKTOP - OPEN \DESK.OVL FILE AND SEEK TO OVERLAY AX = FF98h DX = byte offset in file of overlay header (see #0516) Return: BX = file handle for DESK.OVL file Desc: open the DESK.OVL file, seek to the specified offset, read in the overlay header, and seek to the offset specified by the header Format of PC Tools DESKTOP overlay header: Offset Size Description (Table 0516) 00h 12 BYTEs NUL-padded ASCII overlay filename 0Ch DWORD offset within DESK.OVL file of actual overlay --------U-16FF99----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF99h ??? Return: ??? --------U-16FF9A----------------------------- INT 16 U - PC Tools v7+ DESKTOP - GET NAME OF COLOR SCHEME AX = FF9Ah Return: ES:BX -> name of current color scheme Note: available even if not popped up --------U-16FF9B----------------------------- INT 16 U - PC Tools v7+ DESKTOP - UNUSED AX = FF9Bh Return: ??? Note: sounds triple-length beep --------T-16FF9C----------------------------- INT 16 U - PC Tools v8+ CPTASK - SET/CLEAR ??? POINTER AX = FF9Ch BL = function 00h set ??? pointer DS:SI -> ??? 01h clear pointer to 0000h:0000h ----------16FF9D----------------------------- INT 16 U - PC Tools v8+ CPTASK, VSAFE - ??? AX = FF9Dh ES:BX -> ??? word Return: ??? Note: if ES is non-zero, the word pointed at by ES:BX determines whether the ??? flag is cleared (word = 0000h) or set (word is nonzero). The flag is always cleared if ES=0000h. --------U-16FF9E----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FF9Eh DL = ??? bit 7: ??? bits 6-0: function number??? (00h,01h,other) ??? Return: ??? --------U-16FFA1----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FFA1h ??? Return: ??? Note: same as AX=FFA2h, except ??? set to FFh SeeAlso: AX=FFA2h --------U-16FFA2----------------------------- INT 16 U - PC Tools v7+ DESKTOP - ??? AX = FFA2h ??? Return: ??? Note: calls AX=FFC7h (remove window) and AX=FFFDh SeeAlso: AX=FFA1h,AX=FFC7h,AX=FFFDh --------y-16FFA3BX0000----------------------- INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - INSTALLATION CHECK AX = FFA3h BX = 0000h CX = 0000h Return: AX = segment of resident code BX = 5555h CX = 5555h Note: also supported by DOS 6 UNDELETE which is licensed from PC Tools SeeAlso: INT 21/AH=3Fh"NB.SYS",INT 21/AX=4101h,INT 2F/AX=6284h --------y-16FFA3BX0001----------------------- INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ??? AX = FFA3h BX = 0001h CX = 0001h Return: AX:BX -> ??? CX = BX --------y-16FFA3BX0002----------------------- INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ??? AX = FFA3h BX = 0002h CX = 0002h Return: AX = ??? (0 or 1) CX = BX = AX --------y-16FFA3BX0003----------------------- INT 16 U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ??? AX = FFA3h BX = 0003h CX = 0003h Return: AX = ??? (0 or 1) CX = BX = AX --------y-16FFA3BX0004----------------------- INT 16 U - PC Tools v7+ DATAMON - SET ??? FLAG AX = FFA3h BX = 0004h CX = 0004h SeeAlso: AX=FFA3h/BX=0005h --------y-16FFA3BX0005----------------------- INT 16 U - PC Tools v7+ DATAMON - CLEAR ??? FLAG AX = FFA3h BX = 0005h CX = 0005h SeeAlso: AX=FFA3h/BX=0004h --------y-16FFA3BX0006----------------------- INT 16 U - PC Tools v7+ DATAMON - SET PSP SEGMENT ??? AX = FFA3h BX = 0006h CX = 0006h DX = current PSP segment as known to DOS??? or 0000h --------d-16FFA3BXFFA3----------------------- INT 16 U - PC Tools v9 DSKLIGHT - INSTALLATION CHECK AX = FFA3h BX = FFA3h CX = FFA3h Return: BX = CX = 5555h if installed AX = resident code segment Program: DSKLIGHT is a TSR included with PC Tools v9+ which displays a disk- access indicator on the screen; in v7 and v8, this function was provided by DATAMON Note: DSKLIGHT chains to the previous handler if BX or CX is not FFA3h --------U-16FFA4----------------------------- INT 16 U - PC Tools v7-8 DESKTOP - ??? AX = FFA4h Return: ??? Notes: available even when not popped up sets unknown flag if ??? conditions met SeeAlso: AX=FEA4h --------c-16FFA5CX1111----------------------- INT 16 - PC-Cache v6+ - INSTALLATION CHECK AX = FFA5h CX = 1111h Return: CH = 00h if installed ES:DI -> internal data (see #0517) CL = cache state 01h enabled 02h disabled SeeAlso: INT 13/AH=27h,INT 13/AH=A0h,INT 21/AH=2Bh/CX=4358h Format of PC-Cache internal data: Offset Size Description (Table 0517) -1Ch 20 BYTEs cached drive list, one byte per drive A: to T: each byte is either blank (20h) or drive letter (41h-54h) -8 BYTE ??? -7 WORD number of physical transfers (scaled down to 0000h-7FFFh) -5 WORD number of saved transfers (scaled down to 0000h-7FFFh) -3 3 BYTEs ??? --------c-16FFA5CXAAAA----------------------- INT 16 - PC-Cache v6+ - ENABLE DELAYED WRITES AX = FFA5h CX = AAAAh Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5) SeeAlso: AX=FFA5h/CX=CCCCh --------c-16FFA5CXCCCC----------------------- INT 16 - PC-Cache v6+ - FLUSH CACHE AND DISABLE DELAYED WRITES AX = FFA5h CX = CCCCh Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5) Note: delayed writes are automatically disabled on EXECing (see INT 21/AH=4Bh) a program named either WIN.CO? or DV.E??; however, delayed writes are not automatically reenabled upon the program's termination in v6. SeeAlso: AX=FFA5h/CX=AAAAh,AX=FFA5h/CX=FFFFh --------c-16FFA5CXDDDD----------------------- INT 16 - PC-Cache v6+ - FLUSH AND DISABLE CACHE AX = FFA5h CX = DDDDh SeeAlso: AX=FFA5h/CX=EEEEh,AX=FFA5h/CX=FFFFh --------c-16FFA5CXEEEE----------------------- INT 16 - PC-Cache v6+ - ENABLE CACHE AX = FFA5h CX = EEEEh SeeAlso: AX=FFA5h/CX=DDDDh --------c-16FFA5CXFFFF----------------------- INT 16 - PC-Cache v6+ - FLUSH CACHE AX = FFA5h CX = FFFFh SeeAlso: AX=FFA5h/CX=CCCCh,AX=FFA5h/CX=DDDDh,INT 13/AH=A1h --------U-16FFA6----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ??? AX = FFA6h Return: DS:SI -> ??? Note: available only when popped up --------U-16FFA7----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ??? PATH AX = FFA7h Return: DS:SI -> ASCIZ path (directory from which PCTools was run???) --------U-16FFA8----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - ??? AX = FFA8h DS:SI -> three consecutive ASCIZ strings for ??? (max 256 bytes total) ??? Return: ??? Notes: available only when popped up strings copied into internal buffer, among other actions --------U-16FFA9----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET VERSION STRING AX = FFA9h Return: DS:SI -> version string --------U-16FFAA----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - ??? AX = FFAAh ??? Return: ??? Note: available only when popped up --------U-16FFAB----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET EDITOR SETTINGS??? AX = FFABh Return: DS:SI -> editor setting strings??? --------U-16FFAC----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ??? AX = FFACh DL = ??? Note: available only when popped up --------U-16FFAD----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ??? AX = FFADh DL = ??? --------U-16FFAE----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - GET ??? AX = FFAEh Return: AL = ??? --------U-16FFAF----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ??? AX = FFAFh DL = ??? --------U-16FFB0----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - SET ??? AX = FFB0h BL = ??? --------U-16FFB1----------------------------- INT 16 U - PC Tools v6.0-8.0 DESKTOP - ??? AX = FFB1h ??? Return: ??? --------U-16FFB2----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET ??? AX = FFB2h Return: DS:SI -> ??? --------U-16FFB3----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - ??? AX = FFB3h ??? Return: ??? Note: available only when popped up --------U-16FFB4----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - SET ??? FLAG AX = FFB4h Note: available only when popped up SeeAlso: AX=FFBBh --------U-16FFB5----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET/SET WINDOW PARAMETERS AX = FFB5h BX = window specifier (000Fh to 0019h) (see #0518) DX = 0000h get, nonzero = set ES:DI -> window parameter buffer (see #0519) SeeAlso: AX=FFCBh (Table 0518) Values for PC Tools DESKTOP window specifier: 000Fh comm/FAX 0014h hotkey selection 0015h ASCII table 0016h system colors menu Format of PC Tools DESKTOP window parameters: Offset Size Description (Table 0519) 00h BYTE rows in window, not counting frame 01h BYTE columns in window, not counting frame 02h BYTE row number of top of window 03h BYTE 2*column number of left of window 04h BYTE character attribute for ??? 05h BYTE character attribute for background/border 06h BYTE character attribute for ??? 07h DWORD pointer to ??? on screen 0Bh 4 BYTEs ??? 0Fh BYTE nonzero if window may be resized Note: if running in monochrome mode, character attributes at offsets 04h to 06h are stored unchanged, but attributes other than 07h, 0Fh, or 70h are changed to 07h on reading --------U-16FFB6----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET ??? AX = FFB6h Return: AH = ??? AL = ??? --------U-16FFB7----------------------------- INT 16 U - PC Tools v5.5-8.0 DESKTOP - GET/SET ??? AX = FFB7h BX = direction 0000h copy to buffer else copy from buffer DS:SI -> 70-byte buffer with ??? Return: data copied Note: available only when popped up under v6.0+ --------U-16FFB8----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET/SET??? AX = FFB8h BH = subfunction 00h get Return: BL = old value of ??? CL = old value of ??? (v6.0+) CH = old value of ??? (v6.0+) nonzero set BL = new value for ??? CL = new value for ??? (v6.0+) CH = new value for ??? (v6.0+) DH = ??? Return: AL = old value replaced by CL (v6.0+) AH = old value replaced by CH (v6.0+) --------U-16FFB9----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFB9h ??? Return: AX = ??? CX = ??? DS:SI -> ??? ES:DI -> ??? --------U-16FFBA----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFBAh ??? Return: AX = ??? Note: available only when popped up --------U-16FFBB----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - CLEAR ??? FLAG AX = FFBBh Note: available only when popped up SeeAlso: AX=FFB4h --------U-16FFBC----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - RESTORE ORIGINAL SCREEN??? AX = FFBCh --------U-16FFBD----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? DATABASE INDEXING MESSAGES AX = FFBDh ??? Return: ??? --------U-16FFBE----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFBEh ??? Return: ??? Note: available only when popped up --------U-16FFBF----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFBFh BX = DOS file handle to write on ??? Return: ??? Note: available only when popped up --------U-16FFC0----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFC0h ??? Return: AX = 0000h if successful AX = FFFFh on error Note: available only when popped up --------U-16FFC1----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFC1h BL = ??? ES:DI -> data structure (see #0520) ??? Return: AX = ??? Note: available only when popped up SeeAlso: AX=FFC2h,AX=FFC3h Format of PC Tools DESKTOP data structure: Offset Size Description (Table 0520) 00h WORD ??? 02h WORD ??? 04h WORD ??? 06h WORD ??? 08h WORD ??? 0Ah BYTE ??? 0Bh BYTE ??? (zero/nonzero) ---v7.1--- 0Ch WORD ??? 0Eh BYTE ??? 0Fh WORD ??? 11h WORD ??? ??? --------U-16FFC2----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFC2h BL = ??? ES:DI -> data structure (see #0520) ??? Return: AH = ??? CX = ??? DH = ??? DL = ??? Note: available only when popped up SeeAlso: AX=FFC1h,AX=FFC3h --------U-16FFC3----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFC3h BL = ??? ES:DI -> data structure (see #0520) ??? Return: AH = ??? CX = ??? DH = ??? DL = ??? Note: available only when popped up SeeAlso: AX=FFC1h,AX=FFC2h --------U-16FFC4----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ??? AX = FFC4h Return: AL = ??? BX = segment of scratch space??? CX = segment of stored screen data (section covered by window???) DX = segment of window parameters for ??? ES:BP -> ??? Note: available only when popped up in versions prior to 6.0 --------U-16FFC5----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - CHECK WHETHER DESKTOP LOADED RESIDENT AX = FFC5h Return: BL = Desktop state 00h if nonresident nonzero if loaded resident Note: available only when popped up; should call AX=FFEFh first to ensure that DESKTOP is active SeeAlso: AX=FFEFh,AX=FFF3h --------U-16FFC6----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? AX = FFC6h BL = new value for ??? --------U-16FFC7----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - REMOVE WINDOW AX = FFC7h ??? Return: ??? --------U-16FFC8----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ??? AX = FFC8h Return: DS:SI -> ??? Note: valid only while popped up --------U-16FFC9----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - COPY DATA TO CLIPBOARD AX = FFC9h DS:SI -> characters to store in clipboard CX = size in bytes Return: CF set on error Notes: available only when popped up while copying, bytes of 00h and 0Ah are skipped --------U-16FFCA----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? AX = FFCAh DX = ??? Return: AX destroyed Note: available only when popped up --------U-16FFCB----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SELECT WINDOW PARAMETERS??? AX = FFCBh DX = window specifier??? Return: AX destroyed Note: available only when popped up SeeAlso: AX=FFB5h --------U-16FFCC----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY ASCIZ STRING CENTERED IN WINDOW AX = FFCCh DS:SI -> ASCIZ string Return: AX = ??? CX = ??? ES:DI -> address past last character displayed (v5.1/5.5) -> ??? on menu bar (v6.0) --------U-16FFCD----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFCDh DS:DX -> ??? Return: ??? Note: available only when popped up --------U-16FFCE----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? DELAYS AX = FFCEh CX = ??? Return: nothing??? --------U-16FFCF----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - CLOSE PRINTER/PRINT FILE AX = FFCFh Note: available only when popped up --------U-16FFD0----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - PREPARE TO PRINT??? AX = FFD0h ??? Return: ??? Note: available only when popped up --------U-16FFD1----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY PRINT OPTIONS MENU AX = FFD1h Return: BX = number of copies DX = destination 00h cancel 01h LPT1 02h LPT2 03h LPT3 04h COM1 05h COM2 06h disk file Note: available only when popped up --------U-16FFD2----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFD2h BX = ??? Return: BL = ??? Note: available only when popped up --------U-16FFD3----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFD3h DS:SI -> 92-byte data record for ??? Return: ??? SeeAlso: AX=FED3h --------U-16FFD4BH3C------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - CREATE/OPEN/DELETE FILE AX = FFD4h BH = 3Ch create file (with no attributes) 3Dh open file 41h delete file BL = access mode 00h read only 01h write only 02h read/write DS:SI -> ASCIZ filename Return: BX = file handle 0000h on error Note: operation is attempted in (in order) the directory from which the desktop was started/run???, the directory specified with the filename, X:\PCTOOLS\, and X:\ --------U-16FFD5----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFD5h ??? Return: ??? Note: available only when popped up --------U-16FFD6----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFD6h BX = ??? CX = ??? DX = offset in ??? ??? Return: ??? Note: available only when popped up --------U-16FFD7----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFD7h ??? Return: BL = ??? Note: available only when popped up --------U-16FFD8----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SAFE CREATE FILE AX = FFD8h DS:BX -> ASCIZ filename Return: BX = file handle 0000h on error Note: pops up confirmation menu if file already exists only available when popped up??? --------U-16FFD9----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ??? AX = FFD9h Return: AX = ??? Note: available only when popped up --------U-16FFDA----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET NAME OF LAST FILE OPENED AX = FFDAh DS:SI -> ??? (v5.1/5.5 only) Return: DS:SI -> filename --------U-16FFDB----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? AX = FFDBh BL = ??? Note: available only when popped up --------U-16FFDC----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - UNHOOK AX = FFDCh Return: interrupt vectors 09h, 10h (v6.0+), 16h, 1Ch, and 21h restored to original values Index: uninstall;PC Tools DESKTOP --------U-16FFDDBX0000----------------------- INT 16 U - PC Tools v5.1+ PCShell API - INSTALLATION CHECK AX = FFDDh BX = 0000h Return: CX = 5555h DX = 5555h if PCShell installed in resident mode --------U-16FFDDBX0001----------------------- INT 16 U - PC Tools v5.1+ PCShell API - REQUEST POP-UP AX = FFDDh BX = 0001h Return: CF clear if request successful (PCShell will pop up) CF set on error SeeAlso: AX=FFDDh/BX=0003h --------U-16FFDDBX0002----------------------- INT 16 U - PC Tools v5.1-5.5 PCShell API - GET ??? AX = FFDDh BX = 0002h Return: AL = 00h ??? 01h ??? Note: PCShell v6.0+ displays the error message "Incorrect PCRUN version", awaits a keystroke, and aborts the current process --------U-16FFDDBX0003----------------------- INT 16 U - PC Tools v5.1+ PCShell API - REQUEST POP-UP AX = FFDDh BX = 0003h SeeAlso: AX=FFDDh/BX=0001h --------U-16FFDDBX0004----------------------- INT 16 U - PC Tools v5.1+ PCShell API - GET ??? AX = FFDDh BX = 0004h Return: CF clear if successful DS:SI -> ??? --------U-16FFDDBX0005----------------------- INT 16 U - PC Tools v5.1+ PCShell API - ??? AX = FFDDh BX = 0005h ??? Return: ??? Note: resets various variables if certain conditions are met --------U-16FFDDBX0006----------------------- INT 16 U - PC Tools v5.1+ PCShell API - ??? AX = FFDDh BX = 0006h ??? Return: ??? Note: resets various variables if certain conditions are met --------U-16FFDDBX0007----------------------- INT 16 U - PC Tools v5.1+ PCShell API - SET ??? FLAG AX = FFDDh BX = 0007h Return: CF clear if successful SeeAlso: AX=FFDDh/BX=0008h --------U-16FFDDBX0008----------------------- INT 16 U - PC Tools v5.1+ PCShell API - CLEAR ??? FLAG AX = FFDDh BX = 0008h Return: CF undefined SeeAlso: AX=FFDDh/BX=0007h --------U-16FFDDBX0009----------------------- INT 16 U - PC Tools v6.0+ PCShell API - GET PCRUN PARAMETERS AX = FFDDh BX = 0009h Return: CF clear if successful DS:SI -> list of pointers (see #0521) Format of PC Tools PCShell returned pointer list: Offset Size Description (Table 0521) 00h WORD offset of WORD containing ??? 02h WORD offset of name of program to execute 04h WORD offset of 80-byte buffer for ??? 06h WORD offset of buffer for ??? (length in WORD preceding buffer) 08h WORD offset of buffer for ??? (length in WORD preceding buffer) --------U-16FFDDBX000A----------------------- INT 16 U - PC Tools v6.0+ PCRUN API - INSTALLATION CHECK AX = FFDDh BX = 000Ah Return: CX = 5555h if running DX = 5555h Note: also sets a flag --------U-16FFDDBX000B----------------------- INT 16 U - PC Tools v6.0+ PCRUN API - ??? AX = FFDDh BX = 000Bh ??? Return: CX = 5555h if PCRUN active DX = 5555h Note: also clears flag set by AX=FFDDh/BX=000Ah --------U-16FFDE----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY POPUP MENU AX = FFDEh DS:DX -> menu description (must be on a paragraph boundary) Return: AX = ??? AL seems to be the number of the selected button Note: available only when popped up SeeAlso: AX=FFEEh --------U-16FFDF----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFDFh ??? Return: ??? --------U-16FFE0----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFE0h CX = ??? DX = ??? Note: available only when popped up --------U-16FFE1----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - BEEP AX = FFE1h --------U-16FFE2----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFE2h DX = ??? Return: ??? Note: available only when popped up --------U-16FFE3----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - PRINT CHARACTER AX = FFE3h BL = character to print to currently open printer or print file Return: CF set on error Note: available only when popped up SeeAlso: INT 17/AH=00h --------U-16FFE4----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFE4h DX = segment of ??? Return: ??? Note: available only when popped up --------U-16FFE5----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - POP UP FILE SELECTION MENU AX = FFE5h DS:SI -> ASCIZ wildcard filespec followed by ASCIZ menu title DX = segment of window parameters??? Return: AX = DOS file handle for file DS:DX -> filename??? FFFFh if function cancelled by user Note: available only when popped up SeeAlso: AX=FFDAh --------U-16FFE6----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - CHECK FOR AND GET KEYSTROKE AX = FFE6h Return: AX = 0000h if no key available else BIOS keycode Notes: available only when popped up invokes INT 28 idle interrupt before checking for key --------U-16FFE7----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFE7h BX = segment of ??? Return: ??? Note: available only when popped up --------U-16FFE8----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY NUMBER AX = FFE8h CX = number DH = attribute DS:SI -> destination for ASCII number Return: DS:SI buffer filled in with alternating characters and attributes --------U-16FFE9----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET FILE LIST??? AX = FFE9h Return: BX = segment of file/directory list (14 bytes per file, NUL-padded) Note: available only when popped up --------U-16FFEA----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY COUNTED STRING AX = FFEAh DS:SI -> counted string (count byte followed by string) Return: ??? Note: available only when popped up --------U-16FFEB----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFEBh ??? Return: ??? --------U-16FFEC----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET KEY AX = FFECh DS:SI -> FAR routine to ??? BX = ??? ??? Return: AX = keystroke FFFFh if F10 pressed to go to menu Notes: available only when popped up invokes INT 28 while waiting for keystroke F10 is hotkey to Desktop menu Index: hotkeys;PC Tools DESKTOP --------U-16FFED----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET ??? AX = FFEDh Return: AX = ??? Note: available only when popped up --------U-16FFEE----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE PULLDOWN MENUS AX = FFEEh DS:SI -> pulldown menu system description (see #0522) Return: AX destroyed Notes: available only when popped up if the accessory does not need any menu items of its own, it should call AX=FFFAh instead SeeAlso: AX=FFF7h,AX=FFFAh Format of PC Tools DESKTOP pulldown menu system description: Offset Size Description (Table 0522) 00h WORD offset of menu bar contents (counted string) 02h WORD number of items on menu bar 04h 10 BYTEs scan codes for hotkeying to each of up to ten menu items 0Eh 10 BYTEs which character to highlight in each menu item (01h=first) 18h WORD offset of first menu definition (see #0523) 1Ah WORD offset of second menu definition ... Format of PC Tools DESKTOP menu definition: Offset Size Description (Table 0523) 00h WORD offset of menu contents (see #0524) 02h WORD number of entries in menu 04h for each entry: Offset Size Description 00h BYTE scancode of Alt-key to invoke entry 01h BYTE character to highlight (01h=first, etc) 02h WORD offset of FAR routine to handle selection Format of PC Tools DESKTOP menu contents: Offset Size Description (Table 0524) 00h BYTE number of lines in menu 01h BYTE width of menu 02h N BYTEs counted strings, one for each line in menu --------U-16FFEFCX0000----------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - INSTALLATION CHECK AX = FFEFh CX = 0000h Return: CX = ABCDh if PC Tools DESKTOP.EXE installed BX = segment of resident portion AX = ??? (v5.1/5.5 only) SeeAlso: AX=FEEFh,AX=FFC5h,AX=FFF3h --------U-16FFF0----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SET ??? AX = FFF0h DX = ??? Return: AX destroyed Note: available only when popped up --------U-16FFF1BX0000----------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ALTERNATE INSTALLATION CHECK AX = FFF1h BX = 0000h leave ??? flag as is nonzero set ??? flag Return: CX = 5555h if installed DX = 5555h --------U-16FFF2----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DISPLAY HELP LINE AX = FFF2h DS:SI -> ASCIZ function key label string (each label preceded by '[') or help text Return: AX destroyed Notes: available only when popped up if the specified string does not start with '[', it is displayed centered on the bottom line, else the function key labels are shown --------U-16FFF3----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - PREPARE TO UNLOAD RESIDENT DESKTOP AX = FFF3h Note: releases any EMS being used; restores video mode, page, and cursor shape; and restores interrupt vectors SeeAlso: AX=FFC5h,AX=FFEFh Index: uninstall;PC Tools DESKTOP --------U-16FFF4----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - ??? AX = FFF4h ??? Return: ??? Note: available only when popped up SeeAlso: AX=FFF6h --------U-16FFF5----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET SCREEN ATTRIBUTE ARRAY AX = FFF5h Return: ES:BX -> screen attributes data structure (see #0525) AL = ??? (v6.0+) Format of PC Tools DESKTOP attribute data structure: Offset Size Description (Table 0525) -1 BYTE attribute for desktop background 00h BYTE attribute for normal characters on desktop menu 01h BYTE attribute for highlighted characters on desktop menu 02h 5 BYTEs ??? 07h BYTE attribute for dialog boxes 08h 15 BYTEs ??? 17h BYTE attribute for message boxes --------U-16FFF6----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - INVOKE NOTEPAD EDITOR AX = FFF6h DS = segment of editor buffer structure (see #0526) BX = ??? DX = segment of window parameters structure (see #0519) Return: ??? Note: available only when popped up SeeAlso: AX=FFF4h Format of PC Tools DESKTOP editor buffer structure: Offset Size Description (Table 0526) 00h WORD offset of current cursor position in buffer segment 02h 2 BYTEs ??? 04h WORD offset of beginning of file data in buffer segment 06h 10 BYTEs ??? 10h N BYTEs ASCIZ name of file being edited --------U-16FFF7----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - PROCESS MENU BAR ENTRY??? AX = FFF7h DS:SI -> ??? ??? Return: ??? Notes: available only when popped up performs input processing on the menu bar set up with AX=FFEEh SeeAlso: AX=FFEEh,AX=FFFBh --------U-16FFF8----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DRAW EMPTY WINDOW AX = FFF8h DS:0000h -> window parameters structure (see #0519) DS:BX -> DWORD to store address of ??? on screen Return: ??? --------U-16FFF9----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE SCREEN REFRESH ROUTINE AX = FFF9h ES:BX -> FAR routine to redisplay the utility's window Note: available only when popped up --------U-16FFFA----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - DEFINE STANDARD PULLDOWN MENUS AX = FFFAh Notes: available only when popped up adds the "Window" option to the "Desktop" option which is the only one available when no accessories are active. Unlike AX=FFEEh, no additional menu items are added between "Desktop" and "Window" SeeAlso: AX=FFEEh,AX=FFFBh --------U-16FFFB----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - PROCESS STANDARD MENU BAR AX = FFFBh Return: ??? Notes: available only when popped up performs input processing on the standard menu bar set up with AX=FFFAh SeeAlso: AX=FFF7h --------U-16FFFC----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - GET HOTKEYS AND KEYBOARD VECTOR AX = FFFCh Return: ES:BX -> hotkey table (see #0527) DS:DX = original INT 09 vector Format of PC Tools DESKTOP hotkey table: Offset Size Description (Table 0527) 00h 2 BYTEs scancode/shift state for desktop hotkey 02h 2 BYTEs scancode/shift state for clipboard paste key 04h 2 BYTEs scancode/shift state for clipboard copy key 06h 2 BYTEs scancode/shift state for screen autodial key --------U-16FFFD----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - COPY ??? AX = FFFDh Return: AX destroyed Note: copies 4000 bytes from ??? to ??? under certain circumstances SeeAlso: AX=FF91h,AX=FF92h --------M-16FFFE----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - SHOW MOUSE CURSOR AX = FFFEh SeeAlso: AX=FFFFh,INT 33/AX=0001h --------M-16FFFF----------------------------- INT 16 U - PC Tools v5.1-8.0 DESKTOP - HIDE MOUSE CURSOR AX = FFFFh SeeAlso: AX=FFFEh,INT 33/AX=0002h --------P-17----DX0ABC----------------------- INT 17 - PRINTER - LPTx v5.x INSTALLATION CHECK DX = 0ABCh Return: AX = AAAAh DX = BAAAh ES = code segment of resident portion --------P-17----DX0B90----------------------- INT 17 - PRINTER - LPTx v6.x INSTALLATION CHECK DX = 0B90h Return: DX = ABBBh ES = code segment of resident portion --------P-17----DX0B91----------------------- INT 17 - PRINTER - LPTx v7.x INSTALLATION CHECK DX = 0B91h Return: DX = ABCBh ES = code segment of resident portion --------P-17----DX0F5F----------------------- INT 17 - PRINTER - LPTx v4.x INSTALLATION CHECK DX = 0F5Fh Return: AX = AAAAh DX = F555h ES = code segment of resident portion --------B-1700------------------------------- INT 17 - PRINTER - WRITE CHARACTER AH = 00h AL = character to write DX = printer number (00h-02h) Return: AH = printer status (see #0528) SeeAlso: AH=02h,AH=84h"AX",AX=6F02h,AH=F1h,INT 16/AX=FFE3h,INT 1A/AH=11h"NEC" SeeAlso: INT 4B/AH=00h Bitfields for printer status: Bit(s) Description (Table 0528) 7 not busy 6 acknowledge 5 out of paper 4 selected 3 I/O error 2-1 unused 0 timeout Note: for Tandy 2000, bit 7 indicates printer-busy when set rather than clear --------B-1701------------------------------- INT 17 - PRINTER - INITIALIZE PORT AH = 01h DX = printer number (00h-02h) Return: AH = printer status (see #0528) Note: some printers report that they are ready immediately after initialization when they actually are not; a more reliable result may be obtained by calling AH=02h after a brief delay SeeAlso: AH=02h,AH=FFh"PC-MOS",INT 1A/AH=10h"NEC",INT 4B/AH=01h --------B-1702------------------------------- INT 17 - PRINTER - GET STATUS AH = 02h DX = printer number (00h-02h) Return: AH = printer status (see #0528) Note: PRINTFIX from MS-DOS 5.0 hooks this function and always returns AH=90h SeeAlso: AH=01h,AH=F2h,INT 1A/AH=12h"NEC",INT 4B/AH=02h --------P-1702--DX0000----------------------- INT 17 - INSET - INSTALLATION CHECK AH = 02h DX = 0000h CX = 07C3h (1987d) Return: CX = 07C2h (1986d) if installed Program: INSET is a text/graphics integration program --------b-170200BX5050----------------------- INT 17 - Enhanced Parallel Port (EPP) BIOS - INSTALLATION CHECK AX = 0200h BX = 5050h ('PP') CH = 45h ('E') DX = printer port number (00h-02h) Return: AH = status 00h if installed and port is an enhanced parallel port CX:AL = installed BIOS type 5050h:45h ('PPE') if EPP v3.0+ BIOS installed 4550h:50h ('EPP') if EPP v1.0 BIOS installed ---EPP 1.0, 3.0--- DX:BX -> far entry point to Advanced BIOS (see #0529) ---EPP Revision 7--- DX = EPP I/O base address ES:BX -> far entry point to EPP BIOS (see #0529,#0530) 03h if installed but specified port not supported CF set Program: The Enhanced Parallel Port BIOS provides support for parallel port peripherals using the enhanced modes of the IEEE 1284. SeeAlso: AH=E0h,MEM 0040h:0008h,MEM 0040h:00DCh (Table 0529) Call EPP BIOS entry point with: DL = port number (v1.0) DX = (Revision 7) EPP port I/O base address AH = function 00h Query Configuration Return: AH = 00h if successful AL = IRQ number used by port or FFh if no IRQ BH = EPP BIOS revision (major in high nybble, minor in low nybble) BL = I/O capabilities (see #0532) ES:DI -> ASCIZ driver information/version text ---v1.0,v3.0--- CX = I/O port base address for parallel port ---Revision 7--- CL = EPP chipset code (see #0533) CH = hardware manufacturer's product code 01h Set Mode AL = mode bits (see #0534) Return: AX,BX destroyed 02h Get Mode Return: AL = mode bits (see also #0534) bit 7: EPP port interrupts enabled AH = 00h CF clear BX destroyed 03h Interrupt Control AL = subfunction 00h enable parallel port interrupts 01h disable parallel port interrupts Return: AH = status (00h,05h,06h) (see also #0531) 04h EPP Reset Return: AH = 00h if successful AL destroyed 05h perform Address-Write/Device-Select I/O cycle AL = device address Return: AH = status AL destroyed 06h perform Address-Read I/O cycle Return: AL = returned address/device data AH = status 07h write byte AL = data byte to write Return: AH = status 08h output block of data DS:SI -> block of data to be sent to parallel port CX = number of bytes to output Return: AH = status (see #0531) CX = number of unsent bytes 09h read byte of data Return: AH = status (see #0531) AL = byte read from parallel port 0Ah read block of data ES:DI -> buffer for received data CX = number of bytes to read from paralle port Return: AH = status (see #0531) ES:DI buffer filled if successful CX = number of bytes not transferred 0Bh Address/Byte-Read AL = device address Return: AH = status (see #0531) AL = byte read if successful 0Ch Address/Byte-Write AL = device address DH = data byte (v1.0,v3.0) CL = data byte (Revision 7) Return: AH = status (see #0531) 0Dh Address/Block-Read AL = device address ES:DI -> buffer for received data CX = number of bytes to read Return: AH = status (see #0531) CX = number of bytes NOT transferred 0Eh Address/Block-Write AL = device address ES:DI -> data to be sent (v1.0,v3.0) DS:SI -> data to be send (Revision 7) CX = number of bytes to write Return: AH = status (see #0531) CX = number of bytes NOT transferred 0Fh Lock Port AL = multiplexor port number bits 7-4: daisy chain port number (1-8) bits 3-0: mux device port number (1-8) Return: AH = status (00h,03h,05h) (see #0531) 10h Unlock Port AL = multiplexor port number bits 7-4: daisy chain port number (1-8) bits 3-0: mux device port number (1-8) Return: AH = status (00h,03h,05h) (see #0531) 11h Device Interrupt AL = multiplexor port number 00h if no multiplexor, else mux device port (01h-08h) CH = subfunction 00h disable device interrupts 01h enable device interrupt ES:DI -> interrupt event handler Return: AH = status (00h,03h,05h,06h) (see #0531) Note: AMI BIOS v1.00.12.AX1T uses AL to specify en/disabled and ignores multiplexor port number; it also always sets INT 0F to the address specified in ES:DI 12h Real-Time Mode AL = subfunction 00h check whether any real-time devices present 01h add (advertise) real-time device 02h remove real-time device Return: AH = status (00h,05h,06h,07h) (see #0531) AL = real-time devices present? (00h no, 01h yes) Note: unlike all other functions, this one does not use DL/DX Return: AH = status (see #0531) CF clear if successful CF set on error BX destroyed SeeAlso: #0530 (Table 0530) Call EPP BIOS (Revision 7) entry point multiplexor functions with: DX = EPP port base I/O address AH = function 40h Query Mux Return: AH = status (see #0531) AL = currently-selected port CH = status flags bit 0: channel locked bit 1: interrupt pending BX destroyed 41h Query Device Port AL = EPP multiplex device port (1-8) Return: AH = status (see #0531) CH = status flags (see #0535) BX = EPP product/device ID (0000h if undefined) 42h Set Product ID AL = EPP multiplex device port (1-8) CX = EPP product ID Return: AH = status (see #0531) BX destroyed 50h Query Daisy Chain AL = EPP multiplexor device port (1-8) Return: AH = status (see #0531) CH = status flags bit 0: channel locked bit 1: interrupt pending BL = currently-selected device BH = EPP daisy chain revision (high nybble = major) CL = daisy-chain depth (00h if no daisy chain) ES:DI -> ASCIZ driver vendor identification string 51h Rescan Daisy Chain (dynamically reassign port numbers) AL = EPP multiplexor device port (1-8) Return: AH = status (see #0531) BX destroyed Note: these functions are only valid if a port multiplexor or daisy chain is present SeeAlso: #0529,INT 2D/AL=DCh (Table 0531) Values for EPP BIOS function status: 00h successful 02h unsupported command/feature 03h unsupported parallel port 05h unsupported in current mode 06h invalid subfunction 07h already ??? 20h (AMI) multiplexor not present 40h multiplexor not present 41h multiplexor currently locked 80h I/O timeout FFh invalid/unsupported function SeeAlso: #0529,#0530 Bitfields for EPP (v3.0, Revision 7) I/O capabilities: Bit(s) Description (Table 0532) 0 multiplexor present 1 PS/2 bi-directional capable 2 daisy chain present 3 ECP capable 4 EPP software emulation supported 5 EPP capable 6 fast Centronics supported 7 standard EPP I/O map SeeAlso: #0529 (Table 0533) Values for EPP (Revision 7) chipset code: 00h Intel SL 01h FarPoint Communications 02h SMC 03h Chips&Technologies 04h Western Digital 05h National Semiconductor SeeAlso: #0529 Bitfields for EPP BIOS mode bits: Bit(s) Description (Table 0534) 0 set compatibility mode 1 set bi-directional mode 2 set EPP mode ---Revision 7--- 3 set ECP mode 4 set EPP software emulation 5 set fast Centronics mode 6-7 reserved (0) SeeAlso: #0529,#M051 Bitfields for EPP BIOS multiplex status flags: Bit(s) Description (Table 0535) 0 port is selected 1 port is locked 2 interrupts are enabled 3 interrupt pending SeeAlso: #0530 --------P-1703------------------------------- INT 17 U - Emulaser ELTSR - INSTALL INTERRUPT HANDLERS AH = 03h Return: BX = ??? CX = ??? Program: ELTSR is the resident portion of the Emulaser PostScript emulator by Vertisoft Systems, Inc. SeeAlso: AH=04h"Emulaser",AH=0Eh,INT 1A/AH=E5h --------c-1703------------------------------- INT 17 - PC-MOS/386 v5.01 - PRINT SPOOLER - PRINT STRING AH = 03h DX = printer port number CX = number of characters to print DS:SI -> string Return: AH = printer status (see #0528) CX = number of characters actually printed Desc: send an entire string of chars to the print spooler with a single call Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible operating system by The Software Link, Inc. SeeAlso: AH=00h,AH=01h,AH=02h,AH=FFh"PC-MOS" --------c-1703--BX5A00----------------------- INT 17 - DMP Print Spooler v2.03 - INSTALLATION CHECK AH = 03h BX = 5A00h Return: AX = 5ACBh DI = 0000h ES = DMP code segment (also data segment) Program: DMP is a Printer driver/spooler, by DMP (USA), available on the PCTODAY disk, volume 10, March 1991 --------N-170300----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "socket" AX = 0300h CX = type of socket from socket( domain, type, protocol ) DX = local identifier of socket (0 - 31) Return: AX = 0000h success CX = segment of 4500 byte transfer buffer DX = offset of 4500 byte transfer buffer = FFFFH failure CX = error code ENFILE 23 Program: DOSISODE is the ISO developers environment which has been ported to DOS and will run with the Waterloo TCP turned into a resident TSR. Currently it allows a maximum of 6 open sockets. Note: this function will initialize the interface the first time it is called SeeAlso: AX=0400h"DOSISODE",AX=0600h"DOSISODE",AX=0800h"DOSISODE" SeeAlso: AX=0A00h"DOSISODE",AX=0C00h"DOSISODE",AX=0E00h"DOSISODE" --------P-1704------------------------------- INT 17 U - Emulaser ELTSR - BEGIN CAPTURING OUTPUT AH = 04h Note: has no effect unless ELTSR is deactivated (see AX=0503h) SeeAlso: AH=03h"Emulaser",AX=0503h,INT 1A/AH=E5h --------N-170400----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "bind" AX = 0400h Note: this function just returns SeeAlso: AX=0300h"DOSISODE",AX=0500h"DOSISODE",AX=0C00h"DOSISODE" --------P-170500----------------------------- INT 17 U - Emulaser ELTSR - ??? AX = 0500h ??? Return: AX = unload status (0001h safe to unload, 0002h not safe) BX = ??? CX = PSP segment of ELTSR DX = activity flag (0000h disabled, 0001h capturing, 0002h ???printing) SI = ??? DI = ??? SeeAlso: AH=04h,INT 1A/AH=E5h --------N-170500----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "connect" AX = 0500h SeeAlso: AX=0400h"DOSISODE",AX=0700h"DOSISODE",AX=0C00h"DOSISODE" --------P-170501----------------------------- INT 17 U - Emulaser ELTSR - UNHOOK INTERRUPTS AX = 0501h Return: (see AX=0500h) Note: restores interrupt vectors without checking whether they have been hooked by later programs; should only be called if ELTSR reports that it is safe to unload SeeAlso: AH=04h,AX=0500h,AX=0503h,INT 1A/AH=E5h Index: uninstall;Emulaser ELTSR --------P-170502----------------------------- INT 17 U - Emulaser ELTSR - SET ??? AX = 0502h BL = Emulaser port (31h = LPT1, 32h = LPT2, 33h = LPT3) CL = ??? DL = ??? Return: (see AX=0500h) SeeAlso: AH=04h,AX=0500h,INT 1A/AH=E5h --------P-170503----------------------------- INT 17 U - Emulaser ELTSR - DEACTIVATE??? AX = 0503h Return: (see AX=0500h) SeeAlso: AH=04h,AX=0500h,AX=0501h,INT 1A/AH=E5h --------P-1706------------------------------- INT 17 U - Emulaser ELTSR - ??? AH = 06h ??? Return: ??? SeeAlso: AX=0500h,AX=0503h,AH=07h"ELTSR",INT 1A/AH=E5h --------N-170600----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "listen" AX = 0600h Note: this function just returns SeeAlso: AX=0300h"DOSISODE",AX=0700h"DOSISODE",AX=0C00h"DOSISODE" SeeAlso: AX=0E00h"DOSISODE" --------P-1707------------------------------- INT 17 U - Emulaser ELTSR - OPEN CAPTURE FILE AH = 07h ES:DX -> ASCIZ filename to be opened Return: ??? Note: new output will be appended to the specified file SeeAlso: AH=08h,INT 1A/AH=E5h --------N-170700----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "accept" AX = 0700h Note: this function just returns SeeAlso: AX=0600h"DOSISODE",AX=0800h"DOSISODE",AX=0C00h"DOSISODE" --------P-1708------------------------------- INT 17 U - Emulaser ELTSR - CLOSE CAPTURE FILE AH = 08h ??? Return: ??? Desc: close the file previously opened by function 07h SeeAlso: AH=07h,INT 1A/AH=E5h --------N-170800----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "recvfrom" AX = 0800h SeeAlso: AX=0500h"DOSISODE",AX=0900h"DOSISODE",AX=0A00h"DOSISODE" --------P-1709------------------------------- INT 17 U - Emulaser ELTSR - PRINT CAPTURE FILE??? AH = 09h BX = ??? CX = ??? DX = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AX = status 00h successful FFh failed Program: ELTSR is the resident portion of the Emulaser PostScript emulator by Vertisoft Systems, Inc. Note: this function calls through to INT 1A/AX=E401h, and thus requires that either ELSPL or Disk Spool II be installed SeeAlso: AH=0Ah,INT 1A/AX=E401h,INT 1A/AH=E5h --------N-170900----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "sendto" AX = 0900h SeeAlso: AX=0700h"DOSISODE",AX=0800h"DOSISODE",AX=0A00h"DOSISODE" --------P-170A------------------------------- INT 17 U - Emulaser ELTSR - SET ??? FILENAME AH = 0Ah ES:BX -> ??? buffer CX = length of ??? buffer Return: ??? Note: copies the specified name into the buffer passed to ELSPL as the filename by AH=09h SeeAlso: AH=09h,INT 1A/AH=E5h --------N-170A00----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "select" AX = 0A00h SeeAlso: AX=0800h"DOSISODE",AX=0B00h"DOSISODE",AX=0E00h"DOSISODE" --------P-170B------------------------------- INT 17 U - Emulaser ELTSR - GET ??? AH = 0Bh Return: AX:BX -> ??? SeeAlso: AH=0Ah,INT 1A/AH=E5h --------N-170B00----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "ioctl" AX = 0B00h DX = local identifier of socket (0 - 31) Note: this function sets the socket into non_block mode SeeAlso: AX=0A00h"DOSISODE",AX=0C00h"DOSISODE",AX=0E00h"DOSISODE" --------P-170C------------------------------- INT 17 U - Emulaser ELTSR - SET ??? FLAG AH = 0Ch ??? Return: ??? SeeAlso: AH=0Bh,INT 1A/AH=E5h --------N-170C00----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "close" AX = 0C00h SeeAlso: AX=0300h"DOSISODE",AX=0500h"DOSISODE",AX=0D00h"DOSISODE" --------P-170D------------------------------- INT 17 U - Emulaser ELTSR - GET TRUE ScrlLk STATE AH = 0Dh Return: AX = state (0000h off, 0010h on) Desc: determine the actual state of ScrlLk even when Emulaser is controlling the ScrlLk light as its activity indicator SeeAlso: AH=0Ch,INT 16/AH=02h,INT 1A/AH=E5h --------N-170D00----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - "shutdown" - SHUTDOWN INTERFACE AX = 0D00h Note: this function is used to shutdown the interface SeeAlso: AX=0C00h"DOSISODE",AX=0E00h"DOSISODE" --------P-170E------------------------------- INT 17 U - Emulaser ELTSR - BACKGROUND PROCESSING AH = 0Eh Program: ELTSR is the resident portion of the Emulaser PostScript emulator by Vertisoft Systems, Inc. Note: this function is called by ELTSR on every INT 08 to allow data to be processed in the background, but may also be called by applications to give Emulaser additional CPU time SeeAlso: AH=0Dh,INT 1A/AH=E5h --------N-170E00----------------------------- INT 17 - DOSISODE to WATTCP TSR Interface - INSTALLATION CHECK AX = 0E00h Return: CX = 1234h if installed Program: DOSISODE is the ISO developers environment which has been ported to DOS and will run with the Waterloo TCP turned into a resident TSR. Currently it allows a maximum of 6 open sockets. Note: this function is used to check if the interface is loaded SeeAlso: AX=0300h"DOSISODE",AX=0A00h"DOSISODE" --------P-172000----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - INSTALLATION CHECK AX = 2000h BL = printer number??? Return: AX = status (see #0536) BX = driver version number (BH=major,BL=minor) CH = ??? (00h) CL = ??? DX = ??? (0100h) Note: also enables the remaining printer driver functions (2001h-2007h) SeeAlso: AX=2001h,AX=2002h,AX=2003h,AX=2004h,AX=2005h,AX=2006h,AX=2007h (Table 0536) Values for PC Paint function status: 0000h successful 0001h invalid printer??? 0002h ??? 0003h invalid subfunction 0005h driver disabled, must call function 00h first 0009h unknown printer error 000Bh printer not selected 000Ch printer out of paper 000Eh error while writing to serial printer 000Fh ??? 0010h invalid function number 0011h value out of range --------P-172001----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - SET ??? FLAG AX = 2001h BL = printer number??? Return: AX = status (see #0536) --------P-172002----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - GET INFORMATION AX = 2002h BL = printer number??? CL = desired information 00h printer type Return: ES:DI -> ASCIZ printer name 01h paper size DX = size index Return: ES:DI -> ASCIZ paper size description 02h ??? Return: BX = ??? 03h printer information??? DX = ??? ES:BX -> buffer for ??? (min 134 bytes) Return: AX = status (see #0536) SeeAlso: AX=2000h,AX=2004h --------P-172003----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ??? AX = 2003h ES:BX -> ??? Return: AX = status (see #0536) SeeAlso: AX=2000h,AX=2004h --------P-172004----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - GET ??? AX = 2004h BL = printer number??? Return: AX = status (see #0536) ES:DI -> ??? SeeAlso: AX=2000h,AX=2003h --------P-172005----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ADVANCE PRINTER TO NEXT PAGE AX = 2005h BL = printer number??? Return: AX = status (see #0536) Note: this function also clears the flag set by AX=2001h SeeAlso: AX=2000h,AX=2001h,AX=2006h --------P-172006----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - ADVANCE TO NEXT PAGE & SHUT DOWN AX = 2006h BL = printer number??? Return: AX = status (see #0536) Note: this function also clears the flag set by AX=2001h and disables functions other than AX=2000h SeeAlso: AX=2000h,AX=2001h,AX=2005h --------P-172007----------------------------- INT 17 - PC Paint Plus 2.0 - PRINTER DRIVER - UNIMPLEMENTED AX = 2007h Return: AX unchanged SeeAlso: AX=2000h --------N-172400----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - ENABLE/DISABLE API FUNCTIONS AX = 2400h DL = new state 00h disabled 01h enabled Return: DL = 24h if installed DH = minor version number CX = network address of this machine AL = status (see #0537) SeeAlso: AX=2403h,INT 16/AX=4500h (Table 0537) Values for NET.24 function status: 00h successful 01h timeout 02h header error 03h data error 04h busy 05h invalid parameters --------N-172401----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, NO HANDSHAKE AX = 2401h BL = timeout in clock ticks Return: AL = status (see #0537) DX:BX -> receive buffer SeeAlso: AX=2402h,AX=2404h,AX=2408h --------N-172402----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT BLOCK, NO HANDSHAKE AX = 2402h transmit buffer filled (see AX=2403h) Return: AL = status (see #0537) SeeAlso: AX=2401h,AX=2403h,AX=2404h,AX=2409h --------N-172403----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - GET STATUS AND TRANSMISSION BUFFER AX = 2403h Return: AL = status (see #0537) CX = number of characters in receive ring buffer DX:BX -> transmit buffer SeeAlso: AX=2400h,AX=2402h --------N-172404----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - SEND ACK BLOCK AX = 2404h BX = target address Return: AL = status (see #0537) SeeAlso: AX=2402h,AX=2405h --------N-172405----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - SEND NAK BLOCK AX = 2405h BX = target address Return: AL = status (see #0537) SeeAlso: AX=2402h,AX=2404h --------N-172406----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED RECEIVE AX = 2406h Return: AL = status (see #0537) SeeAlso: AX=2407h,AX=240Ah --------N-172407----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE CHARACTER FROM REMOTE AX = 2407h Return: AL = status (see also #0537) 06h end of data DL = received character SeeAlso: AX=2406h --------N-172408----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, WITH HANDSHAKE AX = 2408h Return: AL = status (see also #0537) 06h end of data CX = number of bytes in receive buffer DX:SI -> receive buffer SeeAlso: AX=2401h,AX=2405h,AX=2409h --------N-172409----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT COMMAND, WITH HANDSHAKE AX = 2409h BX = target address CX = number of data bytes DL = command code to send DS:SI -> data bytes for command Return: AL = status (see also #0537) 03h no response 06h remote currently unable to perform command SeeAlso: AX=2405h,AX=2408h --------N-17240A----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED TRANSMIT AX = 240Ah Return: AL = status (see #0537) SeeAlso: AX=2406h,AX=240Bh,AX=240Ch --------N-17240B----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT SINGLE CHARACTER TO REMOTE AX = 240Bh DL = character to send Return: AL = status (see also AX=2400h) 03h transmission error 06h write error SeeAlso: AX=2407h,AX=240Ah,AX=240Ch --------N-17240C----------------------------- INT 17 - Shamrock Software NET.24 v3.11+ - END CHARACTER-ORIENTED TRANSMIT AX = 240Ch Return: AL = status (see also AX=2400h) 03h transmission error 06h remote breaks connection SeeAlso: AX=240Ah,AX=240Bh --------J-175000----------------------------- INT 17 - AX (Japanese AT) PRINTER - SET PRINTER COUNTRY CODE AX = 5000h BX = country code 0001h USA (English), 0051h Japan Return: AL = status 00h successful 01h bad country code 02h other error SeeAlso: AX=5001h,AH=51h,INT 10/AX=5000h,INT 16/AX=5000h --------J-175001----------------------------- INT 17 - AX (Japanese AT) PRINTER - GET PRINTER COUNTRY CODE AX = 5001h Return: AL = status 00h successful BX = country code 02h error SeeAlso: AX=5000h,AH=51h,INT 10/AX=5001h,INT 16/AX=5001h --------J-1751------------------------------- INT 17 - AX (Japanese AT) PRINTER - JIS to Shift-JIS CONVERSION AH = 51h DX = 2-byte JIS code Return: DX = shift-JIS value or 0000h on error Note: one of AH=51h and AH=52h converts from JIS (Japanese Industry Standard) characters to Shift-JIS characters, and the other performs the opposite conversion SeeAlso: AX=5000h,AH=52h --------J-1752------------------------------- INT 17 - AX (Japanese AT) PRINTER - Shift-JIS to JIS CONVERSION AH = 52h DX = 2-byte shift-JIS code Return: DX = JIS code or 0000h on error Note: one of AH=51h and AH=52h converts from JIS (Japanese Industry Standard) characters to Shift-JIS characters, and the other performs the opposite conversion SeeAlso: AH=51h --------V-1760------------------------------- INT 17 - FLASHUP.COM - INSTALLATION CHECK AH = 60h Return: AL = 60h DX = CS of resident code Notes: FLASHUP.COM is part of Flash-Up Windows by The Software Bottling Co. FLASHUP also hooks INT 10 and receives commands via INT 10/AH=09h,0Ah consisting of an 80h followed by the actual command SeeAlso: INT 10/AH=09h,INT 10/AH=0Ah --------V-1761------------------------------- INT 17 - SPEEDSCR.COM - INSTALLATION CHECK AH = 61h Return: AL = 61h DX = CS of resident code Note: SPEEDSCR.COM is by The Software Bottling Co. --------P-1762------------------------------- INT 17 U - T2PS v1.0 - UNINSTALL AH = 62h Return: nothing SeeAlso: AH=63h,AH=64h,INT 05/AX=554Eh --------P-1763------------------------------- INT 17 U - T2PS v1.0 - SET PARAMETERS AH = 63h ES:SI -> settings (see #0538) Program: T2PS is a shareware ASCII-to-PostScript converter by A.N.D. Technologies SeeAlso: AH=62h,AH=64h,INT 05/AX=4E57h Format of T2PS settings: Offset Size Description (Table 0538) 00h WORD LPT port number (0=LPT1, etc.) 02h WORD page heigh in points 04h WORD page width in points 06h WORD top margin in points 08h WORD bottom margin in points 0Ah WORD left margin in points 0Ch WORD right margin in points 0Eh WORD font size in points 10h WORD tab size 12h WORD timeout in clock ticks --------P-1764------------------------------- INT 17 U - T2PS v1.0 - GET PARAMETERS AH = 64h ES:SI -> buffer for settings (see #0538) Return: ES:SI buffer filled SeeAlso: AH=62h,AH=63h,INT 05/AX=5053h --------b-176F00BX0000----------------------- INT 17 - HP Vectra - EXTENDED BIOS - "F17_INQUIRE" - INSTALLATION CHECK AX = 6F00h BX = 0000h Return: BX = 4850h ("HP") if HP Extended BIOS printer extensions available SeeAlso: AX=6F02h,INT 14/AX=6F00h,INT 10/AX=6F00h,INT 14/AX=6F00h SeeAlso: INT 33/AX=6F00h,INT 6F/AH=00h"HP Vectra" --------b-176F02----------------------------- INT 17 - HP Vectra - EXTENDED BIOS - "F17_PUT_BUFFER" - PRINT BUFFER AX = 6F02h CX = size of buffer in bytes DX = port number (0-3) ES:DI -> buffer containing characters to be printed Return: AH = printer status (see #0528) CX = number of bytes successfully printed ---on error (AH bit 0 set)--- ES:DI -> next byte to be sent ---if successful--- ES:DI unchanged SeeAlso: AH=00h,AX=6F00h,INT 14/AX=6F02h --------N-1781------------------------------- INT 17 - Alloy NTNX, MW386 - CANCEL JOBS FOR CURRENT USER AH = 81h AL = 00h (NTNX compatibility mode) CL = number of jobs to cancel Return: AL = status (see #0539) Note: this function cancels the last CL printouts for the current task SeeAlso: AH=82h (Table 0539) Values for Alloy status: 00h success 01h-7Fh warning 80h general failure 81h host overloaded (NTNX only) 82h module busy (NTNX only) 83h host busy (NTNX only) 84h re-entry flag set 85h invalid request 86h invalid printer 87h invalid process ID 89h access denied 8Ah option not available for given port type 8Bh option not available for given task type 91h printer busy C2h file not found C3h path not found C4h file access failure --------N-1782------------------------------- INT 17 - Alloy NTNX, MW386 - CANCEL ALL JOBS FOR CURRENT USER AH = 82h AL = 00h (NTNX compatibility mode) Return: AL = status (see #0539) SeeAlso: AH=81h --------N-1783------------------------------- INT 17 - Alloy NTNX, MW386 - SET NUMBER OF COPIES AH = 83h AL = mode 00h NTNX compatibility CL = number of copies (max 99, default 1) 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 CX = number of copies Return: AL = status (see #0539) Note: in NTNX compatibility mode, this function only affects LPT1 --------N-1784------------------------------- INT 17 - Alloy NTNX, MW386 - GENERATE PRINT BREAK AH = 84h AL = mode 00h NTNX compatibility 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 Note: closes spool file and tells spooler to queue the print job (LPT1 only under MW386 in NTNX compatibility mode) --------J-1784------------------------------- INT 17 - AX (Japanese AT) PRINTER - OUTPUT CHARACTER WITHOUT CONVERSION AH = 84h AL = character DX = printer number Return: AH = printer status (see #0528) SeeAlso: AH=00h,AH=85h --------J-1785------------------------------- INT 17 - AX (Japanese AT) PRINTER - ENABLE/DISABLE CHARACTER CONVERSION AH = 85h AL = new state (00h enabled, 01h disabled) SeeAlso: AH=84h"AX" --------N-1787------------------------------- INT 17 - Alloy NTNX - SET INDOS POINTER AH = 87h AL = 00h CX:BX -> buffer for user-written printer drivers Return: BX,CX destroyed Note: must be executed before the printer is enabled SeeAlso: AH=8Ah --------N-1788------------------------------- INT 17 - Alloy NTNX, MW386 - REMOVE PRINTER FROM SPOOLER AH = 88h AL = mode 00h NTNX compatibility DX = NTNX printer number (see #0540) 01h MW386 DX = MW386 printer number Return: AH = status (see #0539) Note: removes specified printer from the spooler's list of printers SeeAlso: AH=89h,AH=8Bh (Table 0540) Values for Alloy NTNX printer number: 00h host LPT1 01h host LPT2 02h host LPT3 03h host LPT4 04h host COM1 05h host COM2 06h user's logical COM2 07h user's terminal AUX port 08h user's logical COM1 (MW386 only) --------N-1789------------------------------- INT 17 - Alloy NTNX, MW386 - ADD PRINTER TO SPOOLER AH = 89h AL = mode 00h NTNX compatibility DX = NTNX printer number (see #0540) 01h MW386 DX = MW386 printer number Return: AL = status (see #0539) Note: the specified printer is added to the spooler's list of available printers SeeAlso: AH=88h,AH=8Bh --------N-178A------------------------------- INT 17 - Alloy NTNX - ACTIVATE USER-WRITTEN PRINTER DRIVER AH = 8Ah ??? SeeAlso: AH=92h --------N-178B------------------------------- INT 17 - Alloy MW386 - GET PHYSICAL DEVICE NUMBER FROM NAME AH = 8Bh DS:DX -> ASCIZ printer name Return: AL = status (see also AH=81h) 00h successful DX = physical device number SeeAlso: AH=89h,AH=8Ch,INT 14/AH=20h"Alloy" --------N-178C------------------------------- INT 17 - Alloy MW386 - GET DEVICE NAME FROM PHYSICAL DEVICE NUMBER AH = 8Ch DX = physical device number ES:DI -> 17-byte buffer for ASCIZ device name Return: AL = status (see also AH=81h) 00h successful ES:DI buffer filled SeeAlso: AH=88h,AH=8Bh --------N-178D------------------------------- INT 17 - Alloy NTNX,MW386 - RESET SPOOLER AH = 8Dh AL = 00h Return: AL = status (see #0539) Notes: clears all buffers and resets spooler to boot-up values MW386 supports this function for compatibility only; it is a NOP --------N-178E------------------------------- INT 17 - Alloy NTNX - GET INT 28 ENTRY POINT AH = 8Eh AL = 00h Return: CX:BX -> INT 28 entry point SeeAlso: AH=8Fh --------N-178F------------------------------- INT 17 - Alloy NTNX - GET DOS INTERCEPT ENTRY POINT AH = 8Fh AL = 00h Return: CX:BX -> DOS intercept routine SeeAlso: AH=8Eh --------N-1790------------------------------- INT 17 - Alloy NTNX, MW386 - SPOOL FILE BY NAME AH = 90h AL = mode 00h NTNX compatibility DL = printer code (FFh=current) (NTNX, MW386 v1.x only) DH = number of copies (FFh=current) (NTNX, MW386 v1.x only) 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 CX:SI -> ASCIZ pathname Return: AL = status (see #0539) Note: in mode 00h, the file is always sent to logical LPT1 SeeAlso: AH=A0h --------N-1791------------------------------- INT 17 - Alloy NTNX, MW386 - GET USER NUMBER AND CURRENT PRINTER AH = 91h AL = mode 00h NTNX compatibility Return: CX = user number (00h = host) DX = currently selected printer number (00h-08h) 01h MW386 Return: CX = user number DX = physical dev number of currently selected printer 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 Return: CX = user number DX = physical device number Return: AL = status (see #0539) SeeAlso: AH=8Ch --------N-1792------------------------------- INT 17 - Alloy NTNX - CHECK PRINTER DRIVER AH = 92h AL = 00h CL = 00h Return: CL = driver state 01h initialized 80h not initialized AX = status (see #0539) SeeAlso: AH=8Ah --------N-1794------------------------------- INT 17 - Alloy NTNX, MW386 - SELECT PRINTER AH = 94h AL = mode 00h NTNX compatibility DX = NTNX printer number (see #0540) 01h MW386 DX = MW386 printer number 02h MW386 v2+ BX = logical printer number DX = MW386 printer number Return: AL = status (see #0539) Note: modes 00h and 01h affect only logical LPT1 SeeAlso: AH=8Bh,AH=95h --------N-1795------------------------------- INT 17 - Alloy NTNX, MW386 - GET CURRENT PRINTER AH = 95h AL = mode 00h NTNX compatibility Return: DX = NTNX printer number (see #0540) (FFFFh if current printer not compatible with NTNX) 01h MW386 Return: DX = MW386 printer number 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 Return: DX = MW386 printer number (FFFFh = none) Return: AL = status (see #0539) Note: modes 00h and 01h return the printer number of logical LPT1 only SeeAlso: AH=94h --------N-1796------------------------------- INT 17 - Alloy NTNX - SET SERIAL PORT PARAMETERS AH = 96h AL = 00h Note: documentation states that this is a NOP, doing only XOR AX,AX before returning SeeAlso: INT 14/AH=24h --------N-1797------------------------------- INT 17 - Alloy NTNX, MW386 - SET DATA DRIVEN PRINT BREAK AH = 97h AL = mode 00h NTNX compatibility 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 CH,CL,DH = three character break sequence DL = subfunction 00h set break string else reset break Return: AL = status (see #0539) Notes: mode 00h affects only logical LPT1 when the break string is encountered, the spool file will be closed and queued for printing automatically the break string is not permanently saved, and will be reset each time MW386 or the user is rebooted SeeAlso: AH=9Bh --------N-1798------------------------------- INT 17 - Alloy NTNX,MW386 - RESTART PRINTER AH = 98h AL = 00h DL = printer number (FFh=current) Return: AL = status 00h successful 01h incorrect printer 02h task not found Note: MW386 supports this function for compatibility only; it is a NOP --------N-1799------------------------------- INT 17 - Alloy NTNX, MW386 - GET/SET PRINTER MODE AH = 99h AL = mode 00h NTNX compatibility DL = NTNX printer number (see #0540) (FFh = task's current logical LPT1) DH = mode (see #0541) 01h MW386 DX = MW386 printer number CL = mode (as for DH above) Return: AL = status (see #0539) DH = mode (bits 1 and 2 set as above) DL = printer owner's user number if not spooled Bitfields for Alloy printer mode: 0 get mode if 1, set mode if 0 (Table 0541) 1 private ("attached") 2 direct instead of spooled 3-7 reserved (0) --------N-179A------------------------------- INT 17 - Alloy NTNX,MW386 - SET TAB EXPANSION AH = 9Ah AL = mode 00h NTNX compatibility DX = NTNX printer number (see #0540) (FFFFh = current logical LPT1) 01h MW386 DX = MW386 printer number CL = tab length (00h = no expansion, 01h-63h = spaces per tab) Return: AL = status (see #0539) Note: beginning with MW386 v2.0, tab expansion is set on a per-printer basis rather than a per-user basis; NTNX and MW386 v1.x ignore DX SeeAlso: AH=A4h --------N-179B------------------------------- INT 17 - Alloy NTNX,MW386 - SET PRINT BREAK TIMEOUT AH = 9Bh AL = mode 00h NTNX compatibility CX = timeout value in clock ticks (1/18 sec) (00h = never) 01h MW386 CX = timeout value in seconds (00h = never) 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 CX = timeout value in seconds (00h = never) Return: AL = status (see #0539) Notes: modes 00h and 01h affect only the current logical LPT1 if no data is sent to a printer for the specified amount of time, the spool file will be closed and queued for printing automatically SeeAlso: AH=97h --------N-17A0------------------------------- INT 17 - Alloy MW386 - SPOOL COPY OF FILE AH = A0h AL = mode 00h NTNX compatibility DX = ??? (NTNX, MW386 v1.x only) 02h MW386 v2+ BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 CX:SI -> ASCIZ pathname Return: AL = status (see #0539) Notes: makes a copy of the specified file in the spooler's directory, allowing the original file to be modified or deleted while the copy is printed in mode 00h, the file is printed on logical LPT1 SeeAlso: AH=90h --------N-17A4------------------------------- INT 17 - Alloy MW386 - ENABLE/DISABLE FORM FEED AH = A4h AL = new state 00h form feed after end of print job disabled 01h form feed enabled Return: AL = status (see #0539) Note: only affects the current logical LPT1 SeeAlso: AH=9Ah,AH=A6h,INT 7F/AH=05h"NTNX (Host)" --------N-17A6------------------------------- INT 17 - Alloy MW386 - ENABLE/DISABLE BANNER PAGE AH = A6h AL = new state 00h banner page before print job disabled 01h banner page enabled Return: AL = status (see #0539) Note: only affects the current logical LPT1 SeeAlso: AH=A4h --------N-17A7------------------------------- INT 17 - Alloy MW386 v2+ - GET/SET SPOOL FLAGS AH = A7h AL = spool flags (see #0542) BX = logical device number 00h-03h = LPT1-LPT4 04h-07h = COM1-COM4 Return: AL = status (see #0539) Note: the documentation does not state which register contains the result of a GET SeeAlso: AH=A4h,AH=A6h Bitfields for Alloy spool flags: Bit(s) Description (Table 0542) 0 banner page enabled (see AH=A6h) 1 form feed enabled (see AH=A4h) 2-6 reserved (0) 7 set flags if 1, get flags if 0 --------N-17A8------------------------------- INT 17 - Alloy MW386 - DEFINE TEMPORARY FILENAME AH = A8h CX:SI -> ASCIZ filename without extension (max 8 chars) Return: AL = status (see #0539) Note: allows application to specify banner page filename for spool files collected from the application's printer output SeeAlso: AH=A9h --------N-17A9------------------------------- INT 17 - Alloy MW386 - CHANGE TEMPORARY SPOOL DRIVE AH = A9h AL = new spool drive (2=C:,3=D:,etc) Return: AL = status (see #0539) Note: does not remove previous spooling directory since jobs may be pending SeeAlso: AH=A8h --------N-17AA------------------------------- INT 17 - Alloy MW386 v2+ - GET REAL-TIME PRINTER STATUS AH = AAh AL = mode 00h NTNX DX = NTNX printer number (see #0540) 01h MW386 DX = MW386 printer number Return: AH = instantaneous printer status 00h printer ready 01h not ready 12h off line 13h out of paper 14h general device failure 15h device timeout 16h bad device number --------N-17AF------------------------------- INT 17 - Alloy MW386 - CHECK SPOOLER AH = AFh Return: AX = 55AAh if spooler available --------c-17C0------------------------------- INT 17 - PC Magazine PCSpool - GET CONTROL BLOCK ADDRESS AH = C0h DX = printer port (0-3) Return: ES:BX -> control block (see #0543) SeeAlso: AH=C1h Format of PCSpool control block: Offset Size Description (Table 0543) 00h WORD printer number 02h WORD address of printer status port 04h WORD number of first record in queue 06h WORD number of last record in queue 08h DWORD characters already printed 0Ch DWORD number of characters remaining 10h DWORD pointer to dequeue buffer 14h DWORD previous count of characters printed 18h DWORD number of clock ticks taken to print them 1Ch WORD offset of next character to output 1Eh WORD offset of next character to print 20h WORD pointer to spooling queue record 22h BYTE current spooling status 23h BYTE current printer status: 00h OK 01h not ready 02h paused with message 03h paused 04h initializing FEh non-existent port FFh not spooled 24h BYTE current control record type 25h WORD observed printer speed 27h WORD characters to print per service 29h BYTE 01h if disk write needed 2Ah BYTE 01h if queued data should be flushed 2Bh BYTE 01h to update cps status --------c-17C1-------------------------------- INT 17 - PC Magazine PCSpool - BUILD PAUSE CONTROL RECORD AH = C1h DX = printer port (0-3) DS:SI -> ASCIZ string to save for display Note: flushes pending writes SeeAlso: AH=C0h,AH=C2h --------c-17C2------------------------------- INT 17 - PC Magazine PCSpool - FLUSH PENDING WRITES AH = C2h DX = printer port (0-3) SeeAlso: AH=C3h --------c-17C3------------------------------- INT 17 - PC Magazine PCSpool - CANCEL PRINTER QUEUE (FLUSH ALL QUEUED OUTPUT) AH = C3h DX = printer port (0-3) SeeAlso: AH=C2h,AH=C7h --------c-17C4------------------------------- INT 17 - PC Magazine PCSpool - QUERY SPOOLER ACTIVE AH = C4h Return: DI = B0BFh SI = segment --------c-17C5------------------------------- INT 17 - PC Magazine PCSpool - JOB SKIP PRINTER QUEUE AH = C5h DX = printer port (0-3) Note: cancels up to the pause record --------c-17C6------------------------------- INT 17 - PC Magazine PCSpool - CHECK PRINTER QUEUE STATUS AH = C6h DX = printer port (0-3) Return: AX = queue status 0000h printer not active or at pause 0001h printer busy --------c-17C7------------------------------- INT 17 - PC Magazine PCSpool - CLOSE QUEUE AH = C7h DX = printer port (0-3) SeeAlso: AH=C3h --------P-17CD00----------------------------- INT 17 - INSET - EXECUTE COMMAND STRING AX = CD00h DS:DX -> ASCIZ command string (max 80 bytes) Return: CX = 07C2h (1986d) Note: user interface menus pop up after last command, unless that command exits INSET --------P-17CD01----------------------------- INT 17 - INSET - GET IMAGE SIZE AX = CD01h DS:DX -> ASCIZ name of image file Return: AX = height in 1/720th inch BX = width in 1/720th inch CX = 07C2h (1986d) --------P-17CD02----------------------------- INT 17 - INSET - INITIALIZE AX = CD02h Return: CX = 07C2h (1986d) Note: all open files are closed and the printer is reset SeeAlso: AX=CD04h --------P-17CD03----------------------------- INT 17 - INSET - EXECUTE INSET MENU WITHIN OVERRIDE MODE AX = CD03h Return: CX = 07C2h (1986d) --------P-17CD04----------------------------- INT 17 - INSET - INITIALIZE LINKED MODE AX = CD04h ES:SI -> FAR routine for linked mode (see #0544) Return: CX = 07C2h SeeAlso: AX=CD02h,AX=CD08h (Table 0544) Values INSET linked-mode routine is called with: AL = function 00h send character to printer BL = character to send 01h send string to printer CX = number of bytes to send DS:DX -> buffer containing data 02h move print head to horizontal starting position of image Return: AX = status 0000h success 0001h failure --------P-17CD05----------------------------- INT 17 - INSET - START MERGING IMAGE INTO TEXT AX = CD05h DS:DX -> ASCIZ name of PIX file CX = left margin of text in 1/720th inch Return: AH = printer type 00h page-oriented (multiple images may be placed side-by-side) 01h line-oriented (use AX=CD06h for vertical paper movement) CX = 07C2h (1986d) SeeAlso: AX=CD07h --------P-17CD06----------------------------- INT 17 - INSET - GRAPHICS LINE FEED AX = CD06h Return: AH = completion status 00h image complete 01h image incomplete CX = 07C2h (1986d) SeeAlso: AX=CD09h --------P-17CD07----------------------------- INT 17 - INSET - FLUSH GRAPHICS FROM MERGE BUFFER AX = CD07h Return: CX = 07C2h SeeAlso: AX=CD05h --------P-17CD08----------------------------- INT 17 - INSET - CANCEL LINK MODE AX = CD08h Return: CX = 07C2h SeeAlso: AX=CD04h --------P-17CD09----------------------------- INT 17 - INSET - ALTER TEXT LINE SPACING AX = CD09h CX = line spacing in 1/720th inch Return: CX = 07C2h Note: not yet implemented, line spacing is currently fixed at 1/6 inch SeeAlso: AX=CD06h --------P-17CD0A----------------------------- INT 17 - INSET - GET SETUP AX = CD0Ah DS:DX -> buffer for IN.SET data Return: CX = 07C2h --------P-17CD0B----------------------------- INT 17 - INSET - START GETTING SCALED IMAGE AX = CD0Bh DS:SI -> ASCIZ pathname of .PIX file BX = number of bitplanes CX = number of rows in output bitmap DX = number of columns in output bitmap Return: AX = status 0000h OK FFFFh error Note: image is returned in strips by repeated calls to AX=CD0Ch --------P-17CD0C----------------------------- INT 17 - INSET - GET NEXT IMAGE STRIP AX = CD0Ch Return: AX = status 0000h OK but not complete 0001h OK and image complete FFFFh error DS:SI -> buffer (max 4K) for bit map strip CX = start row DX = number of rows BX = offset in bytes between bit planes Note: buffer may be overwritten by subsequent calls SeeAlso: AX=CD0Bh --------P-17E0------------------------------- INT 17 - EPP BIOS - INSTALLATION CHECK AH = E0h Return: ??? (AH <> E0h if installed ???) SeeAlso: AX=0200h"EPP",AH=E1h,AH=E2h --------P-17E1------------------------------- INT 17 - EPP BIOS - DISABLE EPP AH = E1h ??? Return: ??? SeeAlso: AX=0200h"EPP",AH=E0h,AH=E2h --------P-17E2------------------------------- INT 17 - EPP BIOS - ENABLE EPP AH = E2h ??? Return: ??? SeeAlso: AX=0200h"EPP",AH=E0h,AH=E1h --------P-17F0------------------------------- INT 17 - NorthNet Jetstream API - INSTALLATION CHECK AH = F0h DX = printer port (0-3) Return: AX = 0001h Jetstream present else non-Jetstream port Note: NorthNet Jetstream is a high-performance DMA-driven parallel card able to drive printers at up to 80000 characters per second --------P-17F1------------------------------- INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER AH = F1h CX = data buffer length DX = printer port (0-3) DS:SI -> data buffer Return: AX = status 0000h printer not ready (see also AH=02h) other printing started SeeAlso: AH=00h,AH=F2h,AH=F3h,AH=F5h --------P-17F2------------------------------- INT 17 - NorthNet Jetstream API - GET PRINT PROGRESS STATUS AH = F2h DX = printer port (0-3) Return: AX = status 0000h prior print request finished other number of characters left to print SeeAlso: AH=02h,AH=F1h,AH=F3h --------P-17F3------------------------------- INT 17 - NorthNet Jetstream API - ABORT PRINT OPERATION AH = F3h DX = printer port (0-3) Return: AX = number of unprinted characters due to abort SeeAlso: AH=F1h,AH=F4h --------P-17F4------------------------------- INT 17 - NorthNet Jetstream API - SET COMPLETION (POST) ADDRESS AH = F4h DX = printer port (0-3) DS:DS -> FAR post address (called with interrupts on) SeeAlso: AH=F1h,AH=F3h --------P-17F5------------------------------- INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER FROM EXTENDED MEMORY AH = F5h CX = data buffer length DX = printer port (0-3) DS:SI -> data buffer (32-bit physical address) Return: AX = status 0000h printer not ready (see also AH=02h) other printing started SeeAlso: AH=F1h --------c-17FF--BX0000----------------------- INT 17 U - PC-MOS/386 v5.01 - PRINT SPOOLER - CLOSE SPOOL FILE AH = FFh BX = 0000h CX = 0000h DX = printer port number Return: AH = printer status (see #0528 at AH=00h) Program: PC-MOS/386 v5.01 is a multitasking, multiuser MS-DOS 5.0-compatible operating system by The Software Link, Inc. Desc: close the spool file immediately instead of waiting for the close time to elapse SeeAlso: AH=01h,AH=03h"PC-MOS" --------B-18--------------------------------- INT 18 - DISKLESS BOOT HOOK (START CASSETTE BASIC) Desc: called when there is no bootable disk available to the system Notes: only PCs produced by IBM contain BASIC in ROM, so the action is unpredictable on compatibles; this interrupt often reboots the system, and often has no effect at all network cards with their own BIOS can hook this interrupt to allow a diskless boot off the network (even when a hard disk is present if none of the partitions is marked as the boot partition) SeeAlso: INT 2F/AX=4A06h,INT 86"NetBIOS" --------J-1800------------------------------- INT 18 - NEC PC-9800 series - KEYBOARD - GET KEYSTROKE AH = 00h Return: AX = keystroke SeeAlso: AH=01h,AH=02h,INT 16/AH=00h --------J-1801------------------------------- INT 18 - NEC PC-9800 series - KEYBOARD - CHECK FOR KEYSTROKE AH = 01h Return: BH = status 00h no keystrokes available 01h keystroke available AX = keystroke SeeAlso: AH=00h,AH=02h,INT 16/AH=01h --------J-1802------------------------------- INT 18 - NEC PC-9800 series - KEYBOARD - GET SHIFT STATUS AH = 02h Return: AL = shift flags SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,INT 16/AH=02h --------J-1803------------------------------- INT 18 - NEC PC-9800 series - KEYBOARD - INITIALIZE AH = 03h ??? Return: ??? SeeAlso: AH=00h,AH=04h --------J-1804------------------------------- INT 18 - NEC PC-9800 series - KEYBOARD - KEY PRESSED AH = 04h ??? Return: ??? Note: details are not available at this time SeeAlso: AH=00h,AH=02h,INT 16/AH=00h,INT 16/AH=01h,INT 16/AH=02h --------J-18--------------------------------- INT 18 - NEC PC-9800 series - VIDEO AH = function 0Ah set video mode 0Bh get video mode 0Ch start text screen display 0Dh end text screen display 0Eh set single display area 0Fh set multiple display area 10h set cursor shape 11h display cursor 12h terminate cursor 13h set cursor position 14h read font patter 16h initialize text video RAM 1Ah define user character others ??? Return: ??? Notes: details are not available at this time text video RAM is located at segments A000h (characters) and A200h (attributes), graphics video RAM at segment C000h Bitfields for NEC PC-9800 series video attributes: Bit(s) Description (Table 0545) 0 disable drawing character 1 blinking 2 reverse video 3 underline 4 vertical line 7-5 color (0=black, 1=blue, 2=red, 3=purple, 4=green, 5=cyan, 6=yellow, 7=white) --------J-180E------------------------------- INT 18 - NEC PC-9800 series - SET SINGLE DISPLAY AREA AH = 0Eh DX = offset of first byte to display??? Return: ??? SeeAlso: AH=1Bh,MEM 0050h:0001h --------J-181B------------------------------- INT 18 - NEC PC-9800 series - SET DISPLAY MODE AH = 1Bh AL = ??? (00h for text mode) Return: ??? --------r-185350BX4849----------------------- INT 18 - SPHINX C-- - WB.COM - API AX = 5350h ('SP') BX = 4849h ('HI') CX = 4E58h ('NX') DH = function 01h set ??? DL = ??? 02h get ??? Return: DL = ??? 03h get ??? Return: ES:DI -> ??? data buffer 06h ??? Return: AX = 7370h ('sp') if installed BX = 6869h ('hi') if installed CX = 6E78h ('nx') if installed Program: SPHINX C-- is a shareware compiler by Peter Cellik for a language which is a cross between C and assembler; WB.COM is the driver which launches the WorkBench --------s-186900----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET STATUS AX = 6900h Return: AX = amount of DRAM on card or 0000h if GUS not available Program: YEA_GUS is a driver for the Graphics Ultra Sound which hooks INT 18h and then shells out the the program requiring its services SeeAlso: AX=6901h,AX=690Ah,AX=690Bh --------s-186901----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESET AX = 6901h BX = number of active voices (14-32) Return: nothing SeeAlso: AX=6900h --------s-186902----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOLUME FOR SPECIFIC VOICE AX = 6902h BX = voice number (00h-1Fh) CX = linear volume (0000h-01FFh) Return: nothing SeeAlso: AX=6900h,AX=6903h,AX=6904h,AX=6909h,AX=690Ah --------s-186903----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET FREQUENCY FOR VOICE AX = 6903h BX = voice number (00h-1Fh) CX = frequency in Hz (0-44100) Return: nothing SeeAlso: AX=6902h,AX=6904h --------s-186904----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET LEFT/RIGHT BALANCE AX = 6904h BX = voice number (00h-1Fh) CX = balance (0 = left, 7 = even, 15 = right) Return: nothing SeeAlso: AX=6902h,AX=6903h --------s-186905----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - PLAY MUSIC AX = 6905h BL = voice number BH = sample type (0 = 8-bit, 1 = 16-bit) CL = looping type (0 = none, 1 = forward, 2 = back and forth) CH:DI = 20-bit starting address for voice data DL:SI = 20-bit address for loop start DH:BP = 20-bit address for loop end SeeAlso: AX=6903h,AX=6906h,AX=690Bh --------s-186906----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - LOAD SOUND DATA AX = 6906h BL = data format (1 = twos-complement, 0 = not) BH = sample type (0 = 8-bit, 1 = 16-bit) CX = number of bytes to send ES:SI -> buffer containing data DL:DI = 20-bit address of GUS DRAM at which to load sound data SeeAlso: AX=6900h,AX=6905h,AX=690Ch --------s-186907----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - STOP VOICE AX = 6907h BX = voice number (00h-1Fh) Return: nothing SeeAlso: AX=6908h,AX=690Dh --------s-186908----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SET VOICE END AX = 6908h BX = voice number (00h-1Fh) CL:DX = 20-bit ending address Return: nothing SeeAlso: AX=690Bh --------s-186909----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RAMP VOLUME AX = 6909h BL = voice number (00h-1Fh) BH = looping type (0 = none, 1 = forward, 2 = back and forth) CX = starting volume DX = ending volume DI:SI = time Return: nothing SeeAlso: AX=6902h,AX=690Ah --------s-18690A----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET VOLUME AX = 690Ah BX = voice number (00h-1Fh) Return: AX = current non-linear volume for voice SeeAlso: AX=6902h,AX=6909h --------s-18690B----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - GET POSITION AX = 690Bh BX = voice number Return: BX:AX = 20-bit address at which voice is playing SeeAlso: AX=6900h,AX=6905h,AX=6908h --------s-18690C----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - SAVE SOUND DATA AX = 690Ch BL = data format (1 = twos-complement, 0 = not) BH = sample type (0 = 8-bit, 1 = 16-bit) CX = number of bytes to get ES:SI -> buffer for retrieved data DL:DI = 20-bit address in GUS DRAM from which to read voice data Return: nothing SeeAlso: AX=6906h --------s-18690D----------------------------- INT 18 - Gravis Ultra Sound YEA_GUS.EXE - RESTART VOICE AX = 690Dh BX = voice CX = sample type (0 = 8-bit, 1 = 16-bit) DX = looping type (0 = none, 1 = forward, 2 = back and forth) Return: CX = balance value SeeAlso: AX=6907h,AX=6908h --------s-188000----------------------------- INT 18 - Gravis Ultra Sound EURO_MOD.EXE - INITIALIZE AX = 8000h Program: EURO_MOD is a .MOD file player for the Gravis Ultra Sound which hooks INT 18h and then shells out to the program requiring its services SeeAlso: AX=8001h,AX=8004h --------s-188001----------------------------- INT 18 - Gravis Ultra Sound EURO_MOD.EXE - LOAD .MOD FILE AX = 8001h BX:CX -> ASCIZ filename SeeAlso: AX=8000h,AX=8002h --------s-188002----------------------------- INT 18 - Gravis Ultra Sound EURO_MOD.EXE - PLAY .MOD FILE AX = 8002h SeeAlso: AX=8002h,AX=8003h --------s-188003----------------------------- INT 18 - Gravis Ultra Sound EURO_MOD.EXE - STOP PLAYING AX = 8003h --------s-188004----------------------------- INT 18 - Gravis Ultra Sound EURO_MOD.EXE - SHUTDOWN AX = 8004h SeeAlso: AX=8000h,AX=8003h --------B-19--------------------------------- INT 19 - SYSTEM - BOOTSTRAP LOADER Desc: This interrupt reboots the system without clearing memory or restoring interrupt vectors. Because interrupt vectors are preserved, this interrupt usually causes a system hang if any TSRs have hooked vectors from 00h through 1Ch, particularly INT 08. Notes: Usually, the BIOS will try to read sector 1, head 0, track 0 from drive A: to 0000h:7C00h. If this fails, and a hard disk is installed, the BIOS will read sector 1, head 0, track 0 of the first hard disk. This sector should contain a master bootstrap loader and a partition table (see #0547). After loading the master boot sector at 0000h:7C00h, the master bootstrap loader is given control. It will scan the partition table for an active partition, and will then load the operating system's bootstrap loader (contained in the first sector of the active partition) and give it control. true IBM PCs and most clones issue an INT 18 if neither floppy nor hard disk have a valid boot sector to accomplish a warm boot equivalent to Ctrl-Alt-Del, store 1234h in 0040h:0072h and jump to FFFFh:0000h. For a cold boot equivalent to a reset, store 0000h at 0040h:0072h before jumping. VDISK.SYS hooks this interrupt to allow applications to find out how much extended memory has been used by VDISKs (see #0546). DOS 3.3+ PRINT hooks INT 19 but does not set up a correct VDISK header block at the beginning of its INT 19 handler segment, thus causing some programs to overwrite extended memory which is already in use. the default handler is at F000h:E6F2h for 100% compatible BIOSes MS-DOS 3.2+ hangs on booting (even from floppy) if the hard disk contains extended partitions which point at each other in a loop, since it will never find the end of the linked list of extended partitions under Windows Real and Enhanced modes, calling INT 19 will hang the system in the same was as under bare DOS; under Windows Standard mode, INT 19 will successfully perform a cold reboot as it appears to have been redirected to a MOV AL,0FEh/OUT 64h,AL sequence BUG: when loading the remainder of the DOS system files fails, various versions of IBMBIO.COM/IO.SYS incorrectly restore INT 1E before calling INT 19, assuming that the boot sector had stored the contents of INT 1E at DS:SI instead of on the stack as it actually does SeeAlso: INT 14/AH=17h,INT 18"BOOT HOOK",INT 49"Tandy 2000",INT 5B"PC Cluster" Format of VDISK header block (at beginning of INT 19 handler's segment): Offset Size Description (Table 0546) 00h 18 BYTEs n/a (for VDISK.SYS, the device driver header) 12h 11 BYTEs signature string "VDISK Vn.m" for VDISK.SYS version n.m 1Dh 15 BYTEs n/a 2Ch 3 BYTEs linear address of first byte of available extended memory Format of hard disk master boot sector: Offset Size Description (Table 0547) 00h 446 BYTEs Master bootstrap loader code 1BEh 16 BYTEs partition record for partition 1 (see #0548) 1CEh 16 BYTEs partition record for partition 2 1DEh 16 BYTEs partition record for partition 3 1EEh 16 BYTEs partition record for partition 4 1FEh WORD signature, AA55h indicates valid boot block Format of partition record: Offset Size Description (Table 0548) 00h BYTE boot indicator (80h = active partition) 01h BYTE partition start head 02h BYTE partition start sector (bits 0-5) 03h BYTE partition start track (bits 8,9 in bits 6,7 of sector) 04h BYTE operating system indicator (see #0549) 05h BYTE partition end head 06h BYTE partition end sector (bits 0-5) 07h BYTE partition end track (bits 8,9 in bits 6,7 of sector) 08h DWORD sectors preceding partition 0Ch DWORD length of partition in sectors SeeAlso: #0547 (Table 0549) Values for operating system indicator: 00h empty 01h DOS 12-bit FAT 02h XENIX root file system 03h XENIX /usr file system (obsolete) 04h DOS 16-bit FAT (up to 32M) 05h DOS 3.3+ extended partition 06h DOS 3.31+ Large File System (16-bit FAT, over 32M) 07h QNX 07h OS/2 HPFS 07h Windows NT NTFS 07h Advanced Unix 08h OS/2 (v1.0-1.3 only) 08h AIX bootable partition, SplitDrive 08h Commodore DOS 08h DELL partition spanning multiple drives 09h AIX data partition 09h Coherent filesystem 0Ah OS/2 Boot Manager 0Ah OPUS 0Ah Coherent swap partition 0Bh Windows 95 with 32-bit FAT 0Ch Windows 95 with 32-bit FAT (using LBA-mode INT 13 extensions) 0Eh logical-block-addressable VFAT (same as 06h but using LBA-mode INT 13) 0Fh logical-block-addressable VFAT (same as 05h but using LBA-mode INT 13) 10h OPUS 11h OS/2 Boot Manager hidden 12-bit FAT partition 12h Compaq Diagnostics partition 14h (resulted from using Novell DOS 7.0 FDISK to delete Linux Native part) 14h OS/2 Boot Manager hidden sub-32M 16-bit FAT partition 16h OS/2 Boot Manager hidden over-32M 16-bit FAT partition 17h OS/2 Boot Manager hidden HPFS partition 18h AST special Windows swap file 21h officially listed as reserved 23h officially listed as reserved 24h NEC MS-DOS 3.x 26h officially listed as reserved 31h officially listed as reserved 33h officially listed as reserved 34h officially listed as reserved 36h officially listed as reserved 38h Theos 3Ch PowerQuest PartitionMagic recovery partition 40h VENIX 80286 41h Personal RISC Boot 42h SFS (Secure File System) by Peter Gutmann 50h OnTrack Disk Manager, read-only partition 51h OnTrack Disk Manager, read/write partition 51h NOVEL 52h CP/M 52h Microport System V/386 53h OnTrack Disk Manager, write-only partition??? 54h OnTrack Disk Manager (DDO) 56h GoldenBow VFeature 61h SpeedStor 63h Unix SysV/386, 386/ix 63h Mach, MtXinu BSD 4.3 on Mach 63h GNU HURD 64h Novell NetWare 286 65h Novell NetWare (3.11) 67h Novell 68h Novell 69h Novell 70h DiskSecure Multi-Boot 71h officially listed as reserved 73h officially listed as reserved 74h officially listed as reserved 75h PC/IX 76h officially listed as reserved 80h Minix v1.1 - 1.4a 81h Minix v1.4b+ 81h Linux 81h Mitac Advanced Disk Manager 82h Linux Swap partition 82h Prime 83h Linux native file system (ext2fs/xiafs) 84h OS/2-renumbered type 04h partition (related to hiding DOS C: drive) 86h officially listed as reserved 87h HPFS Fault-Tolerant mirrored partition 93h Amoeba file system 94h Amoeba bad block table A1h officially listed as reserved A3h officially listed as reserved A4h officially listed as reserved A5h FreeBSD, BSD/386 A6h officially listed as reserved B1h officially listed as reserved B3h officially listed as reserved B4h officially listed as reserved B6h officially listed as reserved B7h BSDI file system (secondarily swap) B8h BSDI swap partition (secondarily file system) C1h DR DOS 6.0 LOGIN.EXE-secured 12-bit FAT partition C4h DR DOS 6.0 LOGIN.EXE-secured 16-bit FAT partition C6h DR DOS 6.0 LOGIN.EXE-secured Huge partition C7h Syrinx Boot D8h CP/M-86 DBh CP/M, Concurrent CP/M, Concurrent DOS DBh CTOS (Convergent Technologies OS) E1h SpeedStor 12-bit FAT extended partition E3h DOS read-only E3h Storage Dimensions E4h SpeedStor 16-bit FAT extended partition E5h officially listed as reserved E6h officially listed as reserved F1h Storage Dimensions F2h DOS 3.3+ secondary partition F3h officially listed as reserved F4h SpeedStor F4h Storage Dimensions F6h officially listed as reserved FEh LANstep FEh IBM PS/2 IML FFh Xenix bad block table Note: for partition type 07h, one should inspect the partition boot record for the actual file system type SeeAlso: #0548 --------B-1A00------------------------------- INT 1A - TIME - GET SYSTEM TIME AH = 00h Return: CX:DX = number of clock ticks since midnight AL = midnight flag, nonzero if midnight passed since time last read Notes: there are approximately 18.2 clock ticks per second, 1800B0h per 24 hrs (except on Tandy 2000, where the clock runs at 20 ticks per second) IBM and many clone BIOSes set the flag for AL rather than incrementing it, leading to loss of a day if two consecutive midnights pass without a request for the time (e.g. if the system is on but idle) since the midnight flag is cleared, if an application calls this function after midnight before DOS does, DOS will not receive the midnight flag and will fail to advance the date SeeAlso: AH=01h,AH=02h,INT 21/AH=2Ch,INT 55"Tandy 2000",INT 4E/AH=02h"TI" SeeAlso: INT 62/AX=0099h,MEM 0040h:006Ch --------B-1A01------------------------------- INT 1A - TIME - SET SYSTEM TIME AH = 01h CX:DX = number of clock ticks since midnight Return: nothing Notes: there are approximately 18.2 clock ticks per second, 1800B0h per 24 hrs (except on Tandy 2000, where the clock runs at 20 ticks per second) this call resets the midnight-passed flag SeeAlso: AH=00h,AH=03h,INT 21/AH=2Dh --------B-1A02------------------------------- INT 1A - TIME - GET REAL-TIME CLOCK TIME (AT,XT286,PS) AH = 02h Return: CF clear if successful CH = hour (BCD) CL = minutes (BCD) DH = seconds (BCD) DL = daylight savings flag (00h standard time, 01h daylight time) CF set on error (i.e. clock not running or in middle of update) Note: this function is also supported by the Sperry PC, which predates the IBM AT; the data is returned in binary rather than BCD on the Sperry, and DL is always 00h SeeAlso: AH=00h,AH=03h,AH=04h,INT 21/AH=2Ch --------b-1A02------------------------------- INT 1A - Tandy 2000 - TIME - GET DATE AND TIME AH = 02h Return: BX = number of days since January 1, 1980 CH = hours CL = minutes DH = seconds DL = hundredths SeeAlso: AH=03h"Tandy 2000",INT 55"Tandy 2000" --------B-1A03------------------------------- INT 1A - TIME - SET REAL-TIME CLOCK TIME (AT,XT286,PS) AH = 03h CH = hour (BCD) CL = minutes (BCD) DH = seconds (BCD) DL = daylight savings flag (00h standard time, 01h daylight time) Return: nothing Note: this function is also supported by the Sperry PC, which predates the IBM AT; the data is specified in binary rather than BCD on the Sperry, and the value of DL is ignored SeeAlso: AH=01h,AH=03h,AH=05h,INT 21/AH=2Dh,INT 4B/AH=01h --------b-1A03------------------------------- INT 1A - Tandy 2000 - TIME - SET DATE AND TIME AH = 03h BX = number of days since January 1, 1980 CH = hours CL = minutes DH = seconds DL = hundredths Return: nothing SeeAlso: AH=02h"Tandy 2000",INT 55"Tandy 2000" --------B-1A04------------------------------- INT 1A - TIME - GET REAL-TIME CLOCK DATE (AT,XT286,PS) AH = 04h Return: CF clear if successful CH = century (BCD) CL = year (BCD) DH = month (BCD) DL = day (BCD) CF set on error SeeAlso: AH=02h,AH=04h"Sperry",AH=05h,INT 21/AH=2Ah,INT 4B/AH=02h"TI" --------b-1A04------------------------------- INT 1A - Sperry PC - GET REAL-TIME CLOCK DATE AH = 04h Return: CF clear if successful CL = year-1980 DH = month (binary) (01h-0Ch) DL = day (binary) (01h-1Fh) CF set on error SeeAlso: AH=02h,AH=04h,AH=05h"Sperry",INT 21/AH=2Ah,INT 4B/AH=02h"TI" --------B-1A05------------------------------- INT 1A - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS) AH = 05h CH = century (BCD) CL = year (BCD) DH = month (BCD) DL = day (BCD) Return: nothing SeeAlso: AH=04h,INT 21/AH=2Bh"DATE",INT 4B/AH=00h"TI" --------b-1A05------------------------------- INT 1A - Sperry PC - SET REAL-TIME CLOCK DATE AH = 05h CL = year-1980 CH = 00h (???) DH = month (binary) (01h-0Ch) DL = day (binary) (01h-1Fh) Return: nothing SeeAlso: AH=02h,AH=04h"Sperry",AH=05h,INT 21/AH=2Bh"DATE" --------B-1A06------------------------------- INT 1A - TIME - SET ALARM (AT,XT286,PS) AH = 06h CH = hour (BCD) CL = minutes (BCD) DH = seconds (BCD) Return: CF set on error (alarm already set or clock stopped for update) CF clear if successful Notes: the alarm occurs every 24 hours until turned off, invoking INT 4A each time the BIOS does not check for invalid values for the time, so the CMOS clock chip's "don't care" setting (any values between C0h and FFh) may be used for any or all three parts. For example, to create an alarm once a minute, every minute, call with CH=FFh, CL=FFh, and DH=00h. SeeAlso: AH=07h,INT 4A"SYSTEM" --------B-1A07------------------------------- INT 1A - TIME - CANCEL ALARM (AT,XT286,PS) AH = 07h Return: alarm disabled Note: does not disable the real-time clock's IRQ SeeAlso: AH=06h,INT 70 --------B-1A08------------------------------- INT 1A - TIME - SET RTC ACTIVATED POWER ON MODE (CONVERTIBLE) AH = 08h CH = hours in BCD CL = minutes in BCD DH = seconds in BCD SeeAlso: AH=09h --------B-1A09------------------------------- INT 1A - TIME - READ RTC ALARM TIME AND STATUS (CONV,PS30) AH = 09h Return: CH = hours in BCD CL = minutes in BCD DH = seconds in BCD DL = alarm status 00h alarm not enabled 01h alarm enabled but will not power up system 02h alarm will power up system SeeAlso: AH=08h --------B-1A0A------------------------------- INT 1A - TIME - READ SYSTEM-TIMER DAY COUNTER (XT2,PS) AH = 0Ah Return: CF set on error CF clear if successful CX = count of days since Jan 1,1980 SeeAlso: AH=04h,AH=0Bh --------B-1A0B------------------------------- INT 1A - TIME - SET SYSTEM-TIMER DAY COUNTER (XT2,PS) AH = 0Bh CX = count of days since Jan 1,1980 Return: CF set on error CF clear if successful SeeAlso: AH=05h,AH=0Ah --------J-1A10------------------------------- INT 1A - NEC PC-9800 series - PRINTER - INITIALIZE AH = 10h ??? Return: ??? SeeAlso: AH=11h,AH=12h,INT 17/AH=01h --------J-1A1000----------------------------- INT 1A - NEC PC-9800 series - INSTALLATION CHECK AX = 1000h Return: AX <> 1000h if NEC --------J-1A11------------------------------- INT 1A - NEC PC-9800 series - PRINTER - OUTPUT CHARACTER AH = 11h ??? Return: ??? SeeAlso: AH=10h,AH=12h,INT 17/AH=00h --------J-1A12------------------------------- INT 1A - NEC PC-9800 series - PRINTER - SENSE STATUS AH = 12h ??? Return: ??? SeeAlso: AH=10h,AH=11h,INT 17/AH=02h --------A-1A3601----------------------------- INT 1A - WORD PERFECT v5.0 Third Party Interface - INSTALLATION CHECK AX = 3601h Return: DS:SI = routine to monitor keyboard input, immediately preceded by the ASCIZ string "WPCORP\0" Notes: WordPerfect 5.0 will call this interrupt at start up to determine if a third party product wants to interface with it. The third party product must intercept this interrupt and return the address of a keyboard monitor routine. Before checking for keyboard input, and after every key entered by the user, Word Perfect will call the routine whose address was provided in DS:SI with the following parameters: Entry: AX = key code or 0 BX = WordPerfect state flag Exit: AX = 0 or key code BX = 0 or segment address of buffer with key codes See the "WordPerfect 5.0 Developer's Toolkit" for further information. SeeAlso: INT 16/AX=5500h --------N-1A6108----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_SENDWITHREPLY" - SEND MSG AND GET REPLY AX = 6108h STACK: WORD conversation ID (0000h-0009h) DWORD pointer to message buffer WORD length of message DWORD pointer to reply buffer WORD length of reply buffer WORD 0000h (use default "Cparams" structure) Return: AX = status (see #0550) STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol SeeAlso: AX=6205h (Table 0550) Values for SNAP.EXE status: 0000h successful F830h "SNAP_ABORTED" FC04h "SNAP_SERVERDIED" FC05h "SNAP_RESEND" FC06h "SNAP_SELECTFAILED" FC07h "SNAP_WRONGVERSION" FC08h "SNAP_INVALIDACK" FC09h "SNAP_TIMEOUT" FC0Ah "SNAP_SERVERREJECT" FC0Bh "SNAP_NOREPLYDUE" FC0Ch "SNAP_NOAUTHENTICATE"/"SNAP_GUARDIAN_ERROR" FC0Dh "SNAP_NOINIT" FC0Eh "SNAP_SOCKETERROR" FC0Fh "SNAP_BUFFERLIMIT" FC10h "SNAP_INVALIDCID" FC11h "SNAP_INVALIDOP" FC12h "SNAP_XMITFAIL" FC13h "SNAP_NOMORERETRIES" FC14h "SNAP_BADPARMS" FC15h "SNAP_NOMEMORY" FC16h "SNAP_NOMORECONVS" FFFFh failed (invalid function/parameter) --------N-1A6205----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_SENDNOREPLY" - SEND MSG, DON'T AWAIT REPLY AX = 6205h STACK: WORD conversation ID (0000h-0009h) DWORD pointer to message WORD length of message WORD 0000h (use default "Cparms" structure) Return: AX = status (see #0550) STACK unchanged SeeAlso: AX=6108h --------N-1A6308----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_BEGINCONV" - BEGIN CONVERSATION AX = 6308h STACK: WORD offset of ASCIZ "guardian" WORD offset of ASCIZ hostname WORD offset of ASCIZ server name WORD offset of ASCIZ userid WORD offset of ASCIZ password WORD offset of password length WORD offset of password type WORD offset of "Cparms" structure (see #0551) Return: ??? STACK unchanged Note: all stacked offsets are within the SNAP data segment (use AX=6A01h to allocate a buffer) SeeAlso: AX=6405h,AX=7202h Format of SNAP.EXE Cparms structure: Offset Size Description (Table 0551) 00h WORD retry delay in seconds 02h WORD timeout delay in seconds 04h WORD maximum buffer size 06h WORD encryption level --------N-1A6405----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_ENDCONV" - END CONVERSATION AX = 6405h STACK: WORD conversation ID (0000h-0009h) DWORD pointer to message buffer WORD length of message WORD 0000h (use default "Cparms" structure) Return: AX = status (see #0550) STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol SeeAlso: AX=6308h --------N-1A6900----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_DATASEG" - GET RESIDENT DATA SEGMENT AX = 6900h Return: AX = value used for DS by resident code SeeAlso: AX=6A01h,AX=6F01h --------N-1A6A01----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_ALLOC" - ALLOCATE BUFFER IN SNAP DATA SEGMENT AX = 6A01h STACK: WORD number of bytes to allocate Return: AX = offset of allocated buffer or 0000h if out of memory STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol SeeAlso: AX=6B01h --------N-1A6B01----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_FREE" - DEALLOCATE BUFFER IN SNAP DATA SEGMENT AX = 6B01h STACK: WORD offset within SNAP data segment of previously allocated buffer Return: STACK unchanged Note: this call is a NOP if the specified offset is 0000h SeeAlso: AX=6A01h --------N-1A6C04----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_COPYTO" - COPY DATA TO RESIDENT SNAP PACKAGE AX = 6C04h STACK: WORD offset within SNAP data segment of dest (nonzero) WORD segment of source buffer WORD offset of source buffer WORD number of bytes to copy Return: AX = offset of byte after last one copied to destination STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol SeeAlso: AX=6D04h --------N-1A6D04----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_COPYFROM" - COPY DATA FROM RESIDENT SNAP PACKAGE AX = 6D04h STACK: WORD offset within SNAP data segment of source buffer WORD segment of destination buffer WORD offset of destination buffer WORD number of bytes to copy Return: AX = offset of byte after last one copied from source buffer filled STACK unchanged SeeAlso: AX=6C04h --------N-1A6E01----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_SETDEBUG" - SET ??? AX = 6E01h STACK: WORD new value for ??? Return: AX = old value of ??? STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol --------N-1A6F01----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_CHKINSTALL" - INSTALLATION CHECK AX = 6F01h STACK: WORD 0000h Return: AX = status 0000h SNAP is resident other SNAP not present STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol, and is required by PCVENUS (a network shell). The combination of SNAP and PCVENUS allows the use of the Andrew File System as one or more networked drives. SeeAlso: AX=6900h,AX=7400h --------N-1A7002----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_SETANCHOR" AX = 7002h STACK: WORD anchor number (0000h-0009h) WORD new value for the anchor Return: AX = status 0000h successful FFFFh failed (top word on stack not in range 00h-09h) STACK unchanged SeeAlso: AX=7101h --------N-1A7101----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_GETANCHOR" AX = 7101h STACK: WORD anchor number (0000h-0009h) Return: AX = anchor's value STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol SeeAlso: AX=7002h --------N-1A7202----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_SETCONVPARMS" - SET CONVERSATION PARAMETERS AX = 7202h STACK: WORD conversation ID (0000h-0009h) WORD offset within resident data segment of "Cparms" structure (see #0551) Return: AX = status??? STACK unchanged SeeAlso: AX=6308h --------N-1A7302----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_CLIENTVERSION" - ??? AX = 7302h STACK: WORD conversation ID (0000h-0009h) WORD offset within resident data segment of ??? Return: AX = ??? ??? STACK unchanged SeeAlso: AX=7400h --------N-1A7400----------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_VERSION" - GET VERSION AX = 7400h Return: AX = version (AH=major, AL=minor) Note: this call is only valid if SNAP is installed SeeAlso: AX=7302h,INT 1A/AX=6F01h --------N-1A75------------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_NOP" - ??? AH = 75h AL = ??? Return: AX = ??? (0000h) Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol --------N-1A76------------------------------- INT 1A - SNAP.EXE 3.2+ - "SNAP_802_5" - ??? AH = 76h AL = ??? Return: AX = ??? --------N-1A77------------------------------- INT 1A - SNAP.EXE 3.4 - ??? AH = 77h AL = ??? (at least 01h) STACK: WORD ??? ??? Return: ??? STACK unchanged --------N-1A7802----------------------------- INT 1A - SNAP.EXE 3.4 - ??? AX = 7802h STACK: WORD ??? WORD ??? Return: ??? STACK unchanged Program: SNAP.EXE is a TSR written by IBM and Carnegie Mellon University which implements the Simple Network Application Protocol --------s-1A7F------------------------------- INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND??? AH = 7Fh ??? Return: ??? Note: this function is not supported by the Tandy 1000SL/TL BIOS SeeAlso: AH=80h,AH=83h,AH=85h --------s-1A80------------------------------- INT 1A - PCjr, Tandy 2500???, Tandy 1000SL/TL - SET UP SOUND MULTIPLEXOR AH = 80h AL = 00h source is 8253 channel 2 01h source is cassette input 02h source is I/O channel "Audio IN" 03h source is sound generator chip Note: although documented in the 1000TL Technical Reference, the 1000TL BIOS has just an IRET for this call SeeAlso: AH=7Fh,AH=83h --------X-1A80------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET NUMBER OF ADAPTERS AH = 80h Return: CF clear if successful CX = 5353h ('SS') if Socket Services installed AL = number of adapters present (0-16) AH destroyed CF set on error AH = error code (see #0552) SeeAlso: AH=83h"PCMCIA" (Table 0552) Values for PCMCIA error codes: 01h "BAD_ADAPTER" nonexistent adapter 02h "BAD_ATTRIBUTE" invalid attribute specified 03h "BAD_BASE" invalid system memory base address 04h "BAD_EDC" invalid EDC generator specified 05h "BAD_INDICATOR" invalid indicator specified 06h "BAD_IRQ" invalid IRQ channel specified 07h "BAD_OFFSET" invalid PCMCIA card offset specified 08h "BAD_PAGE" invalid page specified 09h "BAD_READ" unable to complete request 0Ah "BAD_SIZE" invalid window size specified 0Bh "BAD_SOCKET" nonexistent socket specified 0Ch "BAD_TECHNOLOGY" unsupported Card Technology for writes 0Dh "BAD_TYPE" unavailable window type specified 0Eh "BAD_VCC" invalid Vcc power level index specified 0Fh "BAD_VPP" invalid Vpp1 or Vpp2 power level index specified 10h "BAD_WAIT" invalid number of wait states specified 11h "BAD_WINDOW" nonexistent window specified 12h "BAD_WRITE" unable to complete request 13h "NO_ADAPTERS" no adapters installed, but Socket Services is present 14h "NO_CARD" no card in socket 15h function not supported 16h invalid mode 17h invalid speed 18h busy --------X-1A81------------------------------- INT 1A - PCMCIA Socket Services v1.00 - REGISTER STATUS CHANGE CALLBACK AH = 81h DS:DX -> callback routine (see #0553) or 0000h:0000h to disable Return: CF clear if successful AH destroyed CF set on error AH = error code (see #0552) Note: the callback will be invoked on any socket changes whose notification has not been disabled with the status change enable mask; it may be invoked either while processing a hardware interrupt from the adapter or while processing the following Socket Services request SeeAlso: AH=80h"PCMCIA",AH=82h"PCMCIA" (Table 0553) Values PCMCIA callback routine is invoked with: AL = adapter number BH = status change interrupt enable mask (see #0554) BL = socket number DH = current socket status (see #0555) DL = current card status (see #0556) Return: all registers preserved Notes: the callback may be invoked during a hardware interrupt, and may not call on Socket Services the callback will be invoked once for each socket with a status change Bitfields for PCMCIA status change interrupt enable mask: Bit(s) Description (Table 0554) 7 card detect change 6 ready change 5 battery warning change 4 battery dead change 3 insertion request 2 ejection request 1-0 reserved (0) Bitfields for PCMCIA current socket status: Bit(s) Description (Table 0555) 7 card changed 6 reserved (0) 5 card insertion complete 4 card ejection complete 3 card insertion request pending 2 card ejection request pending 1 card locked 0 reserved (0) Bitfields for PCMCIA current card status: Bit(s) Description (Table 0556) 7 card detect 6 ready 5 battery voltage detect 2 (battery warning) 4 battery voltage detect 1 (battery dead) 3-1 reserved (0) 0 write protected --------s-1A8100----------------------------- INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND - INSTALLATION CHECK AX = 8100h Return: AL > 80h if supported AX = 00C4h if supported (1000SL/TL) CF set if sound chip is busy CF clear if sound chip is free Note: the value of CF is not definitive; call this function until CF is clear on return, then call AH=84h"Tandy" --------s-1A82------------------------------- INT 1A - Tandy 2500???, Tandy 1000SL/TL - DIGITAL SOUND - RECORD SOUND AH = 82h ES:BX -> buffer for sound samples CX = length of buffer DX = transfer rate (1-4095, 1 is fastest) Return: AH = 00h CF set if sound busy CF clear if sound chip free Note: the value in DX should be 1/10 the corresponding value for INT 1A/AH=83h on the 1000TL, 1/11.5 on the 1000SL. Call INT 1A/AX=8100h and INT 1A/AH=84h before invoking this function. The BIOS issues an INT 15/AX=91FBh when the input is complete DMA across a 64K boundary is masked by the BIOS --------X-1A82------------------------------- INT 1A - PCMCIA Socket Services v1.00 - REGISTER CARD TECHNOLOGY CALLBACK AH = 82h DS:DX -> callback routine (see #0557) or 0000h:0000h Return: CF clear if successful AH destroyed CF set on error AH = error code (see #0552) Note: the callback is invoked on a Write Multiple request with an unsupported card technology type SeeAlso: AH=81h"PCMCIA",AH=94h (Table 0557) Values PCMCIA callback routine is invoked with: ES:AX -> Low-Level Socket Services Routines (see #0559) BH = socket attributes (see #0558) CX = number of bytes or words to write DS:SI -> data buffer to be written DX:DI -> 26-bit linear card address BP = card technology type Return: CF clear if successful CF set on error AH = error code (07h,0Ch,12h,14h) (see #0552) Bitfields for PCMCIA socket attributes: Bit(s) Description (Table 0558) 7-4 reserved (0) 3 packed buffer 2 even bytes only (only valid if 1 set) 1 data width (clear = byte, set = word) 0 memory type (clear = common, set = attribute) Format of PCMCIA Low-Level Socket Services Routines: Offset Size Description (Table 0559) 00h WORD offset of Write Many routine (see #0560) 02h WORD offset of Write One routine (see #0561) 04h WORD offset of Read One routine (see #0562) 06h WORD offset of Increment Offset routine (see #0563) 08h WORD offset of Set Offset routine (see #0564) 0Ah WORD offset of Get Status routine (see #0565) (Table 0560) Call Write Many routine with: BH = socket attributes (see #0558) CX = number of bytes or words to write DS:SI -> data to be written Return: CF clear if successful CF set on error (Table 0561) Call Write One routine with: AL/AX = data to be written BH = socket attributes (see #0558) Return: CF clear if successful CF set on error (Table 0562) Call Read One routine with: BH = socket attributes (see #0558) Return: CF clear if successful AL/AX = data read CF set on error (Table 0563) Call Increment Offset routine with: BH = socket attributes (see #0558) Return: CF clear if successful CF set on error (Table 0564) Call Set Offset routine with: DX:DI = new offset address Return: CF clear if successful CF set on error (Table 0565) Call Get Status routine with: nothing Return: AL = current card status (see #0556) --------s-1A83------------------------------- INT 1A - Tandy 2500, Tandy 1000L series - START PLAYING DIGITAL SOUND AH = 83h AL = volume (0=silence, 7=highest) CX = number of bytes to play DX = time between sound samples (multiples of 273 nanoseconds) only bits 11-0 used ES:BX -> sound data (array of 8-bit unsigned PCM samples) Return: AH = 00h CF set if sound is busy CF clear if sound chip is free Notes: this call returns immediately while the sound plays in the background; the sound chip is clocked at 3.57 MHz, with the low 12 bits of DX specifying the clock divisor The BIOS appears to call INT 15/AX=91FBh when the sound device underflows to allow another INT 1A/AH=83h for seamless playing of long sounds. SeeAlso: AH=84h"Tandy",INT 15/AH=91h --------X-1A83------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET SOCKET SERVICES VERSION NUMBER AH = 83h AL = adapter number Return: CF clear if successful AX = Socket Services version (BCD) BX = implementation version (BCD) CX = 5353h ("SS") DS:SI -> ASCIZ implementor description CF set on error AH = error code (01h) (see #0552) Note: the current version (from the Revision A.00 documentation) of Socket Services is 1.00 (AX=0100h) SeeAlso: AH=80h"PCMCIA" --------s-1A84------------------------------- INT 1A - Tandy 2500, Tandy 1000L series - STOP PLAYING DIGITAL SOUND AH = 84h Return: ??? Note: the BIOS will call INT 15/AX=91FBh when the sound has stopped playing SeeAlso: AH=83h"Tandy",AH=85h"Tandy" --------X-1A84------------------------------- INT 1A - PCMCIA Socket Services v1.00 - INQUIRE ADAPTER AH = 84h AL = adapter number Return: CF clear if successful AH destroyed BH = number of windows BL = number of sockets (1-16) CX = number of EDCs DH = capabilities (see #0566) DL = status change interrupt used (only if DH bit 3 set)(see #0567) CF set on error AH = error code (01h) (see #0552) SeeAlso: AH=80h"PCMCIA",AH=85h"PCMCIA",AH=87h Bitfields for PCMCIA capabilities: Bit(s) Description (Table 0566) 7-6 reserved (0) 5 status change interrupt is hardware shareable 4 status change interrupt is software shareable 3 status change interrupt 2 data bus width is per-socket rather than per-window 1 power management is per-adapter rather than per-socket 0 indicators are per-adapter rather than per-socket (Table 0567) Values for PCMCIA status change interrupt usage: 00h-0Fh IRQ level 10h NMI 11h I/O check 12h bus error 13h vendor specific 14h-FFh reserved --------s-1A85------------------------------- INT 1A - Tandy 2500, Tandy 1000L series - DIGITAL SOUND??? AH = 85h ??? Return: ??? Note: this function is not supported by the Tandy 1000SL/TL BIOS SeeAlso: AH=7Fh,AH=83h"Tandy" --------X-1A85------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET ADAPTER AH = 85h AL = adapter number Return: CF clear if successful AH destroyed DH = adapter attributes (see #0568) CF set on error AH = error code (01h) (see #0552) SeeAlso: AH=84h"PCMCIA",AH=86h Bitfields for PCMCIA adapter attributes: Bit(s) Description (Table 0568) 7-5 reserved (0) 4 hardware share status change 3 software share status change 2 enable status change interrupts 1 adapter preserves state information during reduced power consumption 0 attempting to reduce power consumption --------X-1A86------------------------------- INT 1A - PCMCIA Socket Services v1.00 - SET ADAPTER AH = 86h AL = adapter number DH = new adapter attributes (see #0568) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h) (see #0552) SeeAlso: AH=84h"PCMCIA",AH=85h"PCMCIA" --------X-1A87------------------------------- INT 1A - PCMCIA Socket Services v1.00 - INQUIRE WINDOW AH = 87h AL = adapter number BH = window number Return: CF clear if successful AH destroyed BL = capabilities (see #0569) CX = bitmap of assignable sockets DH = EISA A15-A12 address lines (in bits 7-4, bits 3-0 = 0) DL = supported access speeds (see #0570) DS:SI -> Memory Window Characteristics table (see #0571) DS:DI -> I/O Window Characteristics table (see #0572) CF set on error AH = error code (01h,11h) (see #0552) SeeAlso: AH=84h"PCMCIA",AH=88h,AH=89h,AH=8Ch Bitfields for PCMCIA window capabilities: Bit(s) Description (Table 0569) 7-5 reserved (0) 4 separate enable for EISA comon space 3 EISA I/O mappable 2 I/O space 1 attribute memory 0 common memory Bitfields for PCMCIA supported access speeds: Bit(s) Description (Table 0570) 7 reserved (0) 6 600 ns 5 300 ns 4 250 ns 3 200 ns 2 150 ns 1 100 ns 0 WAIT line monitoring Format of PCMCIA Memory Window Characteristics table: Offset Size Description (Table 0571) 00h WORD window capabilities (see #0573) 02h WORD minimum base address in 4K pages 04h WORD maximum base address in 4K pages 06h WORD minimum window size in 4K pages 08h WORD maximum window size in 4K pages 0Ah WORD window size granularity (4K units) 0Ch WORD required base address alignment (4K units) 0Eh WORD required card offset alignment (4K units) Format of PCMCIA I/O Window Characteristics table: Offset Size Description (Table 0572) 00h WORD window capabilities (see #0573) 02h WORD minimum base address in bytes 04h WORD maximum base address in bytes 06h WORD minimum window size in bytes 08h WORD maximum window size in bytes 0Ah WORD window size granularity (bytes) Bitfields for PCMCIA window capabilities: Bit(s) Description (Table 0573) 0 programmable base address 1 programmable window size 2 window disable/enable supported 3 8-data bus 4 16-data bus 5 base address alignment on size boundary required 6 power-of-two size granularity ---memory windows--- 7 card offset must be aligned on size boundary 8 paging hardware available 9 paging hardware shared 10 page disable/enable supported 11-15 reserved (0) ---I/O windows--- 7-15 reserved (0) --------X-1A88------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET WINDOW AH = 88h AL = adapter number BH = window number Return: CF clear if successful AH destroyed BL = socket number (0-16) (0 = not assigned) CX = window size (bytes for I/O window, 4K units for memory window) DH = window attributes (see #0574) DL = access speed (only one bit set) (see #0570) SI = window base address (bytes if I/O, 4K units if memory) DI = card offset address (memory only, 4K units) CF set on error AH = error code (01h,11h) (see #0552) SeeAlso: AH=87h,AH=89h,AH=8Ah Bitfields for PCMCIA window attributes: Bit(s) Description (Table 0574) 0 memory-mapped rather than I/O-mapped 1 attribute memory rather than common (memory-mapped) EISA mapped (I/O) 2 enabled 3 16-data path 4 subdivided into pages (memory-mapped only) 5 non-specific access slot enable (EISA-mapped only) 6-7 reserved (0) --------X-1A89------------------------------- INT 1A - PCMCIA Socket Services v1.00 - SET WINDOW AH = 89h AL = adapter number BH = window number BL = socket number CX = window size (bytes if I/O window, 4K units if memory window) DH = window attributes (see #0574) DL = access speed (only one bit set) (see #0570) SI = window base address (bytes if I/O, 4K units if memory window) DI = card offset addrress (memory only, 4K units) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,03h,07h,08h,0Ah,0Bh,0Dh,10h,11h) (see #0552) SeeAlso: AH=87h,AH=88h,AH=8Bh --------X-1A8A------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET PAGE AH = 8Ah AL = adapter number BH = window number BL = page number Return: CF clear if successful AH destroyed DX = page attributes (see #0575) DI = memory card offset (4K units) CF set on error AH = error code (01h,08h,11h) (see #0552) Notes: this function is only valid for memory-mapped windows the socket being operated on is implied by the previous AH=89h call SeeAlso: AH=88h,AH=8Bh Bitfields for PCMCIA page attributes: Bit(s) Description (Table 0575) 0 page enabled 15-1 reserved (0) --------X-1A8B------------------------------- INT 1A - PCMCIA Socket Services v1.00 - SET PAGE AH = 8Bh AL = adapter number BH = window number BL = page number DX = page attributes (see #0575) DI = memory card offset (4K units) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,02h,07h,08h,11h) (see #0552) Notes: this function is only valid for memory-mapped windows the socket being operated on is implied by the previous AH=89h call SeeAlso: AH=89h,AH=8Ah --------X-1A8C------------------------------- INT 1A - PCMCIA Socket Services v1.00 - INQUIRE SOCKET AH = 8Ch AL = adapter number BL = socket number (01h to maximum supported by adapter) Return: CF clear if successful AH destroyed DH = capabilities (see #0576) DL = hardware indicators (see #0577) DS:SI -> Socket Characteristics table (see #0578) DS:DI -> Power Management table (see #0580) CF set on error AH = error code (01h,0Bh) (see #0552) SeeAlso: AH=87h,AH=8Dh,AH=8Eh Bitfields for PCMCIA socket capabilities: Bit(s) Description (Table 0576) 0 card change 1 card lock 2 insert card (motor control) 3 eject card (motor control) 4-7 reserved (0) Bitfields for PCMCIA socket hardware indicators: Bit(s) Description (Table 0577) 0 busy status 1 write-protected 2 battery status 3 card lock status 4 XIP status (eXecute-In-Place) 5-7 reserved (0) Format of PCMCIA Socket Characteristics table: Offset Size Description (Table 0578) 00h WORD supported card types (see #0579) 02h WORD steerable IRQ levels (bit 0 = IRQ0 to bit 15 = IRQ15) 04h WORD additional steerable IRQ levels bit 0: NMI bit 1: I/O check bit 2: bus error bit 3: vendor-unique bits 4-7 reserved (0) Bitfields for supported card types: Bit(s) Description (Table 0579) 0 memory card 1 I/O card 2-7 reserved (0) Format of PCMCIA Power Management table: Offset Size Description (Table 0580) 00h WORD number of entries in table (0 if power management not avail) 02h 2N BYTEs power levels byte 0: voltage in 0.1V units byte 1: power supply bit 7: Vcc bit 6: Vpp1 bit 5: Vpp2 --------X-1A8D------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET SOCKET AH = 8Dh AL = adapter number BL = socket number (01h to maximum supported by adapter) Return: CF clear if successful AH destroyed BH = status change interrupt enable mask (see #0554) CH = Vcc level (lower nybble) (see #0580) CL = Vpp1 level (upper nybble) and Vpp2 level (lower nybble) DH = current socket status (see #0555) DL = indicators (see #0577) SI = card type (see #0581) DI = IRQ level steering (I/O only) (see #0582) CF set on error AH = error code (01h,0Bh) (see #0552) SeeAlso: AH=8Ch,AH=8Eh Bitfields for PCMCIA card type: Bit(s) Description (Table 0581) 0 memory 1 I/O 2-15 reserved (0) Bitfields for PCMCIA I/O level steering: Bit(s) Description (Table 0582) 15 interrupt steering enabled 14-5 reserved (0) 4-0 IRQ level (0-15=IRQ,16=NMI,17=I/O check,18=bus error,19=vendor) --------X-1A8E------------------------------- INT 1A - PCMCIA Socket Services v1.00 - SET SOCKET AH = 8Eh AL = adapter number BL = socket number (01h to maximum supported by adapter) BH = status change interrupt enable mask (see #0554) CL = Vpp1 level (upper nybble) and Vpp2 level (lower nybble) DH = current socket status (see #0555) DL = indicators (see #0577) SI = card type (see #0581) DI = IRQ level steering (I/O only) (see #0582) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,02h,05h,06h,0Bh,0Eh,0Fh) (see #0552) SeeAlso: AH=8Ch,AH=8Dh --------X-1A8F------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET CARD AH = 8Fh AL = adapter number BL = socket number (01h to maximum supported by adapter) Return: CF clear if successful AH destroyed DL = current card status (see #0556) CF set on error AH = error code (01h,0Bh) (see #0552) SeeAlso: AH=8Dh,AH=90h --------X-1A90------------------------------- INT 1A - PCMCIA Socket Services v1.00 - RESET CARD AH = 90h AL = adapter number BL = socket number (01h to maximum supported by adapter) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,0Bh,14h) (see #0552) Note: toggles RESET pin of the specified card, but does not wait after toggling the pin; it is the caller's responsibility to avoid accessing the card before it is ready again --------X-1A91------------------------------- INT 1A - PCMCIA Socket Services v1.00 - READ ONE AH = 91h AL = adapter number BL = socket number (01h to maximum supported by adapter) BH = attributes (see #0583) DX:SI = card address Return: CF clear if successful AH destroyed CL/CX = value read CF set on error AH = error code (01h,07h,09h,0Bh,14h) (see #0552) CX may be destroyed Note: this function is only valid for I/O-mapped sockets SeeAlso: AH=92h,AH=93h,INT 21/AX=440Dh"DOS 3.2+" Bitfields for PCMCIA attributes: Bit(s) Description (Table 0583) 2 even bytes only 1 word rather than byte 0 attribute memory instead of common memory --------X-1A92------------------------------- INT 1A - PCMCIA Socket Services v1.00 - WRITE ONE AH = 92h AL = adapter number BL = socket number (01h to maximum supported by adapter) BH = attributes (see #0583) CL/CX = value to write DX:SI = card address Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,07h,0Bh,12h,14h) (see #0552) Note: this function is only valid for I/O-mapped sockets; it also does not implement Card Technology handling--use AH=94h when writing to non-RAM technologies SeeAlso: AH=91h,AH=94h,INT 21/AX=440Dh"DOS 3.2+" --------X-1A93------------------------------- INT 1A - PCMCIA Socket Services v1.00 - READ MULTIPLE AH = 93h AL = adapter number BL = socket number (01h to maximum supported by adapter) BH = attributes (see #0583) CX = number of bytes or words to read DX:SI = card address DS:DI -> data buffer to be filled Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,07h,09h,0Bh,14h) (see #0552) Note: this function is only available on I/O-mapped sockets SeeAlso: AH=91h,AH=94h,INT 21/AX=440Dh"DOS 3.2+" --------X-1A94------------------------------- INT 1A - PCMCIA Socket Services v1.00 - WRITE MULTIPLE AH = 94h AL = adapter number BL = socket number (01h to maximum supported by adapter) BH = attributes (see #0583) CX = number of bytes or words to read DX:DI = card address DS:SI -> buffer containing data BP = Card Technology type (0000h = RAM) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,07h,0Bh,0Ch,12h,14h) (see #0552) Notes: this function is only available on I/O-mapped sockets Socket Services calls the Card Technology callback (see #0557) for any card technology it does not directly support SeeAlso: AH=82h"PCMCIA",AH=92h,AH=93h,INT 21/AX=440Dh"DOS 3.2+" --------X-1A95------------------------------- INT 1A - PCMCIA Socket Services v1.00 - INQUIRE ERROR DETECTION CODE AH = 95h AL = adapter number BH = EDC generator number Return: CF clear if successful AH destroyed CX = bitmap of assignable sockets DH = EDC capabilities (see #0584) DL = supported EDC types (see #0585) CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=96h,AH=9Ch Bitfields for EDC capabilities: Bit(s) Description (Table 0584) 0 unidirectional only generation 1 bidirectional only generation 2 register-based (I/O-mapped) support 3 memory-mapped support 4 pausable 5-7 reserved (0) Bitfields for supported EDC types: Bit(s) Description (Table 0585) 0 8-checksum 1 16-CRC-SDLC 2-7 reserved (0) --------X-1A96------------------------------- INT 1A - PCMCIA Socket Services v1.00 - GET ERROR DETECTION CODE AH = 96h AL = adapter number BH = EDC generator number Return: CF clear if successful AH destroyed BL = socket number DH = EDC attributes (see #0586) DL = EDC type (see #0585) (only one bit set) CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=95h,AH=97h,AH=9Ch Bitfields for EDC attributes: Bit(s) Description (Table 0586) 0 unidirectional only 1 (if 0 set) clear=read, set=write 2-7 reserved (0) --------X-1A97------------------------------- INT 1A - PCMCIA Socket Services v1.00 - SET ERROR DETECTION CODE AH = 97h AL = adapter number BH = EDC generator BL = socket number DH = EDC attributes (see #0586) DL = EDC type (see #0585) (only one bit may be set) Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,02h,04h,0Bh) (see #0552) SeeAlso: AH=96h,AH=9Ch --------X-1A98------------------------------- INT 1A - PCMCIA Socket Services v1.00 - START ERROR DETECTION CODE AH = 98h AL = adapter number BH = EDC generator Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=96h,AH=99h,AH=9Bh,AH=9Ch --------X-1A99------------------------------- INT 1A - PCMCIA Socket Services v1.00 - PAUSE ERROR DETECTION CODE AH = 99h AL = adapter number BH = EDC generator Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=9Ah --------X-1A9A------------------------------- INT 1A - PCMCIA Socket Services v1.00 - RESUME ERROR DETECTION CODE AH = 9Ah AL = adapter number BH = EDC generator Return: CF clear if successful AH destroyed CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=99h,AH=98h --------X-1A9B------------------------------- INT 1A - PCMCIA Socket Services v1.00 - STOP ERROR DETECTION CODE AH = 9Bh AL = adapter number BH = EDC generator Return: CF clear if successful AH destroyed CF set on error AH = error code (see #0552) SeeAlso: AH=98h,AH=99h,AH=9Ch --------X-1A9C------------------------------- INT 1A - PCMCIA Socket Services v1.00 - READ ERROR DETECTION CODE AH = 9Ch AL = adapter number BH = EDC generator Return: CF clear if successful AH destroyed DL/DX = computed checksum or CRC CF set on error AH = error code (01h,04h) (see #0552) SeeAlso: AH=95h,AH=96h,AH=98h,AH=99h,AH=9Bh --------X-1A9D------------------------------- INT 1A - PCMCIA Socket Services v2.1??? - GET VENDOR INFO AH = 9Dh AL = adapter number BH = EDC generator ES:EDI -> vendor information structure (see #0587) Return: CF clear if successful AH destroyed DX = vendor release number in BCD ES:EDI unchanged CF set on error AH = error code (01h,15h) (see #0552) Notes: this API is supported by recent versions of the AMI BIOS the low-level API described here is hidden by the higher-level ExCA API once Card Services has been installed SeeAlso: AH=9Dh"ExCA" Format of Vendor Information structure: Offset Size Description (Table 0587) 00h WORD buffer length (set to size of buffer below) 04h WORD (ret) data length 08h x BYTEs implementor name (ASCIIZ string) --------X-1A9D------------------------------- INT 1A - Intel PCMCIA ExCA Card Services - API AH = 9Dh AL = subfunction (see #0588) ??? Return: ??? SeeAlso: AH=9Dh"ExCA",#3310 (Table 0588) Values for PCMCIA ExCA Card Services subfunction number: 00h Client Services: Get Number of Sockets 01h Advanced Client Utilities: Initialize 02h Client Services: Register Client 03h Client Services: Deregister Client 04h Advanced Client Utilities: Enumerate Clients 05h Client Services: Register SCB 06h Client Services: Deregister SCB 07h Advanced Client Utilities: Register MTD 08h Advanced Client Utilities: Deregister MTD 09h Advanced Client Utilities: Enumerate MTD 0Ah Client Services: Get Status 0Bh Client Services: Reset Card 0Ch Client Utilities: Get First Tuple 0Dh Client Utilities: Get Next Tuple 0Eh Client Utilities: Determine First Region 0Fh Client Utilities: Determine Next Region 10h Client Utilities: Get First Region 11h Client Utilities: Get Next Region 12h Client Utilities: Get First Partition 13h Client Utilities: Get Next Partition 14h Bulk Memory Services: Open Region 15h Bulk Memory Services: Read Memory 16h Bulk Memory Services: Write Memory 17h Bulk Memory Services: Copy Memory 18h Bulk Memory Services: Erase Memory 19h Resource Management: Request I/O 1Ah Resource Management: Release I/O 1Bh Resource Management: Request Memory 1Ch Client Services: Modify Window 1Dh Resource Management: Release Memory 1Eh Client Services: Map Mem Page 1Fh Advanced Client Utilities: Return SS Entry 20h Advanced Client Utilities: Map Log to Phy 21h Advanced Client Utilities: Map Log Phy to Log 22h Resource Management: Request IRQ 23h Resource Management: Release IRQ 24h Bulk Memory Services: Close Region --------X-1A9E------------------------------- INT 1A - PCMCIA Socket Services v2.1 - ACKNOWLEDGE INTERRUPT AH = 9Eh AL = adapter number Return: CF clear if successful AH destroyed CX = bitmap representing sockets which have changed status CF set on error AH = error code (01h) (see #0552) Note: this API is supported by recent versions of the AMI BIOS --------X-1A9F------------------------------- INT 1A - PCMCIA Socket Services v2.1 - GET/SET PRIOR INT 1A HANDLER AH = 9Fh AL = adapter number BL = mode 00h get prior INT 1Ah handler 01h set prior INT 1Ah handler CX:DX -> new prior handler Return: CF clear if successful AH destroyed CX:DX -> old prior handler CF set on error AH = error code (01h,15h,18h) (see #0552) Desc: allows hooking of INT 16h "behind" the Socket Services hook Note: this API is supported by recent versions of the AMI BIOS SeeAlso: AH=9Eh,AH=A0h"PCMCIA",AH=AEh"PCMCIA" --------c-1AA0------------------------------- INT 1A U - Disk Spool II v2.07+ - INSTALLATION CHECK AH = A0h Return: AH = B0h if installed AL = pending INT 1A/AH=D0h subfunction if nonzero??? ES = code segment ES:BX -> name of current spool file ES:SI -> current despool file CL = despooler state (00h disabled, 41h enabled) CH = spooler state (00h disabled, 41h enabled) DL = despooler activity 00h currently active printing a file 41h standing by DH = 00h ??? = 41h ??? DI = 0000h ??? 0001h ??? Program: Disk Spool II is a shareware disk-based print spooler by Budget Software Company Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=ABh,AH=C0h,AH=D0h,AH=E1h --------X-1AA0------------------------------- INT 1A - PCMCIA Socket Services v2.1 - GET/SET SOCKET SERVICES ADDRESS AH = A0h AL = adapter number BH = mode 00h real mode 01h 16:16 protected mode 02h 16:32 protected mode 03h 00:32 (Flat) protected mode BL = subfunction 00h return number of additional data areas (see #0589) 01h return description of additional data areas (see #0590) 02h accept mode-specific pointers to data areas (see #0591) ES:EDI -> buffer supplied by caller Return: CF clear if successful AH destroyed CX = number of additional data areas ES:EDI unchanged CF set on error AH = error code (01h,02h,15h,16h,18h) (see #0552) SeeAlso: AH=9Fh,AH=AEh Format of PCMCIA Subfunction 00h Buffer Table Entry structure: Offset Size Description (Table 0589) 00h DWORD 32-bit linear base address of the code segment 04h DWORD segment limit of the code segment 08h DWORD entry point offset 0Ch DWORD 32-bit linear base address of the data segment (ignored in 00:32 flat mode) 10h DWORD segment limit of the data segment 14h DWORD data area offset. Only used in 32-bit protected mode. SeeAlso: #0590,#0591 Format of PCMCIA Additional Data Area Description structure [array]: Offset Size Description (Table 0590) 00h DWORD 32-bit linear base address of the additional data segment (ignored in 00:32 flat mode) 04h DWORD segment limit of the code segment 08h DWORD data area offset (only used in 32-bit protected mode) SeeAlso: #0589,#0591 Format of PCMCIA Subfunction 02h Buffer Table Entry structure: Offset Size Description (Table 0591) 00h DWORD 32-bit offset(ignored in 16:16 protected mode) 04h DWORD selector (only used in 00:32 flat mode) 08h DWORD reserved SeeAlso: #0589,#0590 --------X-1AA1------------------------------- INT 1A - PCMCIA Socket Services v2.1 - GET ACCESS OFFSETS AH = A1h AL = adapter number BH = Mode 00h = Real Mode 01h = 16:16 Protected Mode 02h = 16:32 Protected Mode 03h = 00:32 Protected Mode CX = Number of access offsets ES:EDI -> buffer supplied by caller, CX words long (see #0592) Return: CF clear if successful AH destroyed DX = number of access offsets supported ES:EDI unchanged CF set on error AH = error code (01h,15h,16h) (see #0552) Desc: Returns an array of low-level adapter-specific optimized PC Card access routines for adapters that use registers or I/O ports to access PC Card memory. Adapters that access PC Card memory through windows mapped to host system memory do not support this function. Note: offsets returned are 16-bit offsets into the Socket Services code segment. They must be called appropriately for the processor mode selected. (Real, 16:16 and 16:32 modes use FAR CALL, Flat 00:32 mode uses a 32-bit NEAR CALL). SeeAlso: AH=AEh Format of Offset Table structure: Offset Size Description (Table 0592) 00h WORD Set Address 02h WORD Set Auto Increment 04h WORD Read Byte 06h WORD Read Word 08h WORD Read Byte with Auto Increment 0Ah WORD Read Word with Auto Increment 0Ch WORD Read Words 0Eh WORD Read Words with Auto Increment 10h WORD Write Byte 12h WORD Write Word 14h WORD Write Byte with Auto Increment 16h WORD Write Word with Auto Increment 18h WORD Write Words 1Ah WORD Write Words with Auto Increment 1Ch WORD Compare Byte 1Eh WORD Compare Byte with Auto Increment 20h WORD Compare Words 22h WORD Compare Words with Auto Increment --------X-1AA2------------------------------- INT 1A - CardBus Socket Services - ACCESS CONFIGURATION SPACE AH = A2h ??? details not available Return: ??? --------X-1AA4------------------------------- INT 1A - CardBus Socket Services - GET BRIDGE WINDOW / WINDOW CAPABILITIES AH = A4h ??? details not available Return: ??? SeeAlso: AH=A5h"CardBus" --------X-1AA5------------------------------- INT 1A - CardBus Socket Services - SET BRIDGE WINDOW AH = A5h ??? details not available Return: ??? SeeAlso: AH=A4h"CardBus" --------c-1AAB------------------------------- INT 1A U - Disk Spool II v1.83 - INSTALLATION CHECK AH = ABh Return: AH = BAh if installed AL = pending INT 1A/AH=ADh subfunction if nonzero??? ES = code segment ES:BX -> name of current spool file ES:SI -> current despool file CL = despooler state (00h disabled, 41h enabled) CH = spooler state (00h disabled, 41h enabled) DL = despooler activity 00h currently active printing a file 41h standing by DH = 00h ??? = 41h ??? DI = 0000h ??? 0001h ??? Program: Disk Spool II is a shareware disk-based print spooler by Budget Software Company SeeAlso: AH=A0h,AH=ACh,AH=ADh,AH=E1h --------c-1AAC------------------------------- INT 1A U - Disk Spool II v1.83 - INSTALLATION CHECK AH = ACh Return: (see AH=ABh) Note: this function is identical to AH=ABh SeeAlso: AH=A0h,AH=ABh,AH=ADh --------c-1AAD------------------------------- INT 1A U - Disk Spool II v1.83 - FUNCTION CALLS AH = ADh AL = function code (see #0593) Return: AH = 00h if successful SeeAlso: AH=ABh (Table 0593) Values for Disk Spool function code: 02h enable spooler only 03h enable the despooler 04h disable the despooler 08h inhibit popup menu 09h enable popup menu 0Ah ??? 0Bh disable the spooler 0Ch start despooler after last successfully printed document??? 0Dh start despooler at the exact point where it last left off??? 0Eh pop up the menu 0Fh ??? 11h ??? 14h ??? 15h ??? 16h ??? 17h ??? 18h ??? 19h ??? 20h clear file pointed to by the despooler??? 21h ??? 22h ??? 23h ??? 30h ??? --------X-1AAE------------------------------- INT 1A - PCMCIA Socket Services v2.1 - VENDOR SPECIFIC AH = AEh AL = adapter number all other registers are vendor-specific Return: vendor specific SeeAlso: AH=A1h,AH=AFh --------X-1AAE------------------------------- INT 1A - PCMCIA Socket Services v2.1 - API AH = AEh SI = function 0002h ??? 0100h ??? 0101h ??? 8000h ??? 8001h ??? details not yet available Return: CF clear if successful CF set on error AH = error code (02h,0Bh,11h,15h,17h) (see #0552) SeeAlso: AH=9Eh --------X-1AAF------------------------------- INT 1A - PCMCIA v2 Card Services - API AH = AFh AL = function 00h close memory 01h copy memory 02h deregister client 03h get client information (see #0598) 04h get configuration information (see #0600) 05h get first partition 06h get first region 07h get first tuple (see #0607) 08h get next partition 09h get next region 0Ah get next tuple 0Bh get Card Services information (see #0596) 0Ch get status 0Dh get tuple data (see #0608) 0Eh get first client (see #0597) 0Fh get/register Erase Queue 10h register client (see #0609) 11h reset function 12h map logical socket 13h map logical window 14h map memory page 15h map physical socket 16h map physical window 17h modify window 18h open memory 19h read memory 1Ah register MTD 1Bh release I/O 1Ch release IRQ (see #0611) 1Dh release window 1Eh release configuration (see #0612) 1Fh request I/O (see #0613) 20h request IRQ (see #0614) 21h reqeust window (see #0616) 22h request socket mask 23h return SS entry 24h write memory 25h deregister Erase Queue 26h check Erase Queue 27h modify configuration 28h register timer 29h set region 2Ah get next client 2Bh validate CIS 2Ch request exclusive access (see #0619) 2Dh release exclusive access (see #0619) 2Eh get event mask 2Fh release socket mask 30h request configuration (see #0620) 31h set event mask 32h add Socket Service 33h replace Socket Service 34h vendor-specific 35h adjust resource information 36h access configuration register 37h get first window 38h get next window 39h get memory page 3Ah request DMA 3Bh release DMA further details not yet available Return: ??? = result code (see #0594) SeeAlso: AH=AEh (Table 0594) Values for PCMCIA Card Services result codes: 00h successful 01h invalid adapter number 02h bad value for attribute field 03h bad value for base system memory address 04h invalid EDC generator specified 05h (reserved for historical reasons) 06h invalid IRQ level specified 07h invalid PC Card memory array offset 08h invalid page number specified 09h unable to complete read request 0Ah invalid size specified 0Bh invalid socket number 0Ch (reserved for historical reasons) 0Dh invalid window or interface type 0Eh invalid Vcc power level specified 0Fh invalid Vpp1 or Vpp2 power level specified 10h (reserved for historical reasons) 11h invalid window number 12h unable to complete write request 13h (reserved for historical reasons) 14h no PC Card in socket 15h service not supported by implementation 16h unsupported processor mode 17h specified speed not available 18h busy -- retry later 19h undefined error (general failure) 1Ah storage medium write protected 1Bh argument length in (E)CX is invalid 1Ch bad value(s) in argument packet 1Dh configuration has already been locked 1Eh requested resource already in use 1Fh no more items of requested type available 20h out of resources 21h invalid client handle 22h unsupported client version (Table 0595) Values for Card Services Callback Event codes: 01h battery dead 02h battery low 03h card locked 04h card has become ready 05h card removed 06h card unlocked 07h motorized ejection complete 08h ejection requested 09h insertion complete 0Ah insertion requested 0Bh power management: resume 0Ch power management: suspend 0Dh exclusive access granted 0Eh exclusive access requested 0Fh perform physical reset 10h physical reset requested 11h card has been reset 12h MTD request (read/write/etc) 14h request for client info 15h timer has expired 16h Socket Service was modified 17h write-protected 18h attention requested 40h card insertion 80h reset complete 81h erase complete 82h registration complete Format of Card Services Information: Offset Size Description (Table 0596) 00h WORD length of information record in bytes 02h WORD signature 04h WORD number of sockets 06h WORD revision level 08h WORD Card Services level 0Ah WORD offset of vendor string 0Ch WORD length of vendor string 0Eh WORD number of functions 10h 255 BYTEs vendor string SeeAlso: #0598 Format of Card Services Client structure: Offset Size Description (Table 0597) 00h WORD PCMCIA socket number 02h WORD client attributes Format of Cards Services Client Information: Offset Size Description (Table 0598) 00h WORD maximum length of data in bytes (180) 02h WORD (ret) length of returned data 04h WORD attributes (see #0599) 06h WORD revision level (BCD) 08h WORD Card Services level (BCD) 0Ah WORD revision date (DOS packed date format) (see #1006) 0Ch WORD offset to name 0Eh WORD length of name 10h WORD offset to vendor string 12h WORD length of vendor string 14h 80 BYTEs buffer for name 64h 80 BYTEs buffer for vendor string SeeAlso: #0596,#0600 Bitfields for Card Services client attributes: Bit(s) Description (Table 0599) 0 memory client 1 MTD client 2 I/O client 3 all clients can share this card 4 only one client can use this card at a time SeeAlso: #0598 Format of Card Services configuration information: Offset Size Description (Table 0600) 00h WORD socket (usually 0000h) 02h WORD attributes (see #0601) 04h BYTE Vcc value 05h BYTE Vpp1 value 06h BYTE Vpp2 value 07h BYTE interface type (see #0602) 08h DWORD base address of configuration registers 0Ch BYTE card's Status register setting (if present) 0Dh BYTE card's Pin register setting (if present) 0Eh BYTE card's Socket/Copy register setting (if present) 0Fh BYTE card's Option register setting (if present) 10h BYTE bitmap of present card configuration registers 11h BYTE first device type 12h BYTE function code 13h BYTE SysInit mask 14h WORD manufacturer code 16h WORD manufacturer information 18h BYTE valie card register values 19h BYTE IRQ number assigned to PC Card 1Ah WORD IRQ attributes (see #0604) 1Ch WORD base port address (for I/O range 1) 1Eh BYTE number of contiguous ports (for I/O range 1) 1Fh BYTE bitmap of port attributes (for I/O range 1) (see #0605) 20h WORD base port address (for I/O range 2) 22h BYTE number of contiguous ports (for I/O range 2) 23h BYTE bitmap of port attributes (for I/O range 2) (see #0605) 24h BYTE number of I/O address lines decoded (16-bit PC Card only) 25h BYTE extended status register setting (if present) 26h BYTE bitmap of DMA attributes (see #0606) (note: value at call is used to set!) 27h BYTE assigned DMA channel 28h BYTE number of I/O windows in use on logical socket 29h BYTE number of memory windows in use on logical socket SeeAlso: #0599,#0620 Bitfields for Card Services Configuration attributes: Bit(s) Description (Table 0601) 0 exclusive 1 IRQ active 2 CardBus card 3-5 reserved (0) 6 DMA channel is active 7 reserved (0) 8 valid client 9 overwrite voltage value 10-15 reserved (0) SeeAlso: #0600 Bitfields for Card Services Configuration interface type: Bit(s) Description (Table 0602) 0 memory interface 1 I/O and memory interface 2 CardBus interface 3-7 reserved (0) SeeAlso: #0600 Bitfields for Card Services Configuration registers: Bit(s) Description (Table 0603) 0 option value is value 1 status value 2 pin-replacement value 3 copy value 4 extended status value 5-7 reserved (0) SeeAlso: #0600 Bitfields for Card Services Configuration IRQ attributes: Bit(s) Description (Table 0604) 1-0 sharing 00 no sharing 01 time-multiplex sharing 10 dynamic sharing 11 reserved 2 force pulse mode 3 first used together 4-7 reserved 8 pulse IRQ has been assigned 9-15 reserved SeeAlso: #0600,#0605,#0606,#0611,#0614 Bitfields for Card Services Configuration Port attributes: Bit(s) Description (Table 0605) 0 shared I/O ports 1 "CS_FirstCommonUsedCard" 2 force alias access 3 =1 sixteen-bit I/O =0 eight-bit I/O 7-4 reserved (0) SeeAlso: #0600,#0604,#0606,#0613 Bitfields for Card Services Configuration DMA attributes: Bit(s) Description (Table 0606) 1-0 sharing mode 00 no sharing 01 time-multiplex sharing 10 dynamic sharing 11 reserved 3-2 DMA request signal 00 reserved 01 DMARQ uses pin SPKR# 10 DMARQ uses pin IOIS16# 11 DMARQ uses pin INPACK# 4 DMA size 0 eight bits 1 sixteen bits 7-5 reserved (0) SeeAlso: #0600,#0604,#0605 Format of Card Services Tuple information: Offset Size Description (Table 0607) 00h WORD logical socket number 02h WORD attributes bit 0: return Link tuples 04h BYTE code value of desired tuple 05h BYTE reserved (0) 06h WORD (ret) TupleFlags 08h DWORD (ret) -> Card Services Link State Information 0Ch DWORD (ret) -> Card Services CIS State Information 10h BYTE (ret) code for tuple 11h BYTE (ret) link value for tuple SeeAlso: #0608 Format of Card Services GetTupleData record: Offset Size Description (Table 0608) 00h WORD logical socket 02h WORD attributes 04h BYTE code value of desired tuple 05h BYTE offset into tuple from link byte 06h WORD flags 08h DWORD -> Link 0Ch DWORD -> CIS 10h WORD (call) maximum amount of data to return (0004h) 12h WORD (ret) amount of data returned 14h DWORD (ret) tuple data SeeAlso: #0607 Format of Card Services Client Registration record: Offset Size Description (Table 0609) 00h WORD attributes 02h WORD event mask 04h WORD client data (passed to client event handler in DI) --- 16-bit code --- 06h WORD client data selector (passed to event handler in DS) 08h WORD client data offset (passed to event handler in SI) 0Ah WORD reserved --- 32-bit code --- 06h WORD reserved 08h DWORD client data offset (passed to event handler in ESI) ------ 0Ch WORD expected Card Services version (0210h for v2.10) Bitfields for Card Services client event codes: Bit(s) Description (Table 0610) 0 change in write-protect status 1 change in card lock 2 ejection request 3 insertion request 4 battery is dead 5 battery low 6 change in Ready 7 change in Card Detect 8 power management change 9 reset 10 Socket Services updated 11 extended status change SeeAlso: #0609 Format of Card Services ReleaseIRQ record: Offset Size Description (Table 0611) 00h WORD logical socket number 02h WORD attributes (see #0604) 04h BYTE assigned IRQ number to be released Format of Card Services Release Configuration record: Offset Size Description (Table 0612) 00h WORD logical socket number Format of Card Services Request I/O record: Offset Size Description (Table 0613) 00h WORD logical socket number 02h WORD base port 1 04h BYTE size of port range 1 05h BYTE attributes for port range 1 (see #0605) 06h WORD base port 2 08h BYTE size of port range 2 09h BYTE attributes for port range 2 (see #0605) 0Ah BYTE number of address lines (typically 16) SeeAlso: #0614,#0612 Format of Card Services Request IRQ record: Offset Size Description (Table 0614) 00h WORD logical socket number 02h WORD attributes (see #0604) 04h BYTE (ret) assigned IRQ number, if successful 05h BYTE IRQ info (see #0615) 06h WORD bitmap of available IRQs (bit 0 = IRQ0, etc.) (only if bit 4 of IRQ info set) SeeAlso: #0613,#0612 Bitfields for Card Services Request IRQ info flags: Bit(s) Description (Table 0615) 7 IRQ is shared 6 pulse (edge-triggered) interrupt 5 level interrupt 4 use IRQ bitmap --- bit 4 set --- 3 vendor-specific interrupt 2 bus error 1 I/O check interrupt 0 NMI --- bit 4 clear --- 3-0 IRQ number SeeAlso: #0614 Format of Card Services Request Window record: Offset Size Description (Table 0616) 00h WORD logical socket number 02h WORD attributes (see #0617) 04h DWORD system base adress 08h DWORD size of memory window 0Ch BYTE additional info if attributes bit ??? is set, this is the address-lines field otherwise, this is the access-speed field (see #0618) Bitfields for Card Services Request Window attributes: Bit(s) Description (Table 0617) 0 I/O window instead of memory window 1 attribute memory instead of normal memory (16-bit PC Cards only) 2 window enabled 3 16-bit data path instead of 8-bit path (16-bit PC Cards only, v2.10+) (ignored if bit 9 set) 4 size is given in 16K pages (invalid for CardBus PC Cards) 5 shared (invalid for CardBus) 6 first shared (invalid for CardBus) 7 "CS_BindingSpecific" (memory window only) 8 card offsets are window-size granular (16-bit PC Card memory window) 9 32-bit data path (CardBus only) 10 reserved (0) 12-11 prefetch/cache 00 neither prefetchable nor cacheable 01 prefetchable but not cacheable 10 prefetchable and cachable 11 reserved 15-13 decoded base address register number (CardBus only) SeeAlso: #0616,#0618 Bitfields for Card Services Request Window access-speed: Bit(s) Description (Table 0618) 6-3 mantissa 0000 use device speed code 0001 1.0 0010 1.2 0011 1.2 ??? 0100 1.5 0101 2.0 0110 2.5 0111 3.0 1000 3.5 1001 4.0 1010 4.5 1011 5.0 1100 5.5 1101 6.0 1110 7.0 1111 8.0 --- if mantissa==0 --- 2-0 device speed code 000 reserved 001 250 ns 010 200 ns 011 150 ns 100 100 ns 101-111 reserved --- if mantissa<>0 --- 2-0 speed exponent 000 1 ns 001 10 ns 010 100 ns 011 1 us 100 10 us 101 100 us 110 1 ms 111 10 ms SeeAlso: #0616,#0617 Format of Card Services Request/Release Exclusive Access record: Offset Size Description (Table 0619) 00h WORD logical socket number 02h WORD attributes (currently all reserved, must be 0000h) Format of Card Services Request Configuration record: Offset Size Description (Table 0620) 00h WORD socket (usually 0000h) 02h WORD attributes (see #0601) 04h BYTE Vcc value 05h BYTE Vpp1 value 06h BYTE Vpp2 value 07h BYTE interface type (see #0602) 08h DWORD base address of configuration registers 0Ch BYTE card's Status register setting (if present) 0Dh BYTE card's Pin register setting (if present) 0Eh BYTE card's Socket/Copy register setting (if present) 0Fh BYTE card's Option register setting (if present) 10h BYTE bitmap of present card configuration registers 11h BYTE extended status register setting (if present) SeeAlso: #0600 --------X-1AB000----------------------------- INT 1A U - HP 100LX/200LX - PCMCIA - ??? AX = B000h ES:BX -> parameter block ??? Return: CF clear if ??? CF set if ??? Note: called by HP 100LX/200LX PCMCIA client CIC100.EXE --------d-1AB001CX4D52----------------------- INT 1A - Microsoft Real-Time Compression Interface (MRCI) - ROM-BASED SERVER AX = B001h CX = 4D52h ("MR") DX = 4349h ("CI") Return: CX = 4943h ("IC") if installed DX = 524Dh ("RM") if installed ES:DI -> MRCINFO structure (see #0621) Note: this call is functionally identical to INT 2F/AX=4A12h, which should be called first, as this call is used for the first, ROM-based MRCI server, while the other call is used for RAM-based servers which may be partially or entirely replacing a prior server SeeAlso: INT 2F/AX=4A12h Format of MRCINFO structure: Offset Size Description (Table 0621) 00h 4 BYTEs vendor signature "MSFT" Microsoft 04h WORD server version (high=major) 06h WORD MRCI specification version 08h DWORD address of server entry point (see #0623) 0Ch WORD bit flags: server capabilities (see #0622) 0Eh WORD bit flags: hardware assisted capabilities (see #0622) 10h WORD maximum block size supported by server (at least 8192 bytes) Bitfields for MRCI capabilities: Bit(s) Description (Table 0622) 0 standard compress 1 standard decompress 2 update compress 3 MaxCompress (not present in initial public release) 4 reserved 5 incremental decompress 6 MRCI 2.0 standard compress 7 MRCI 2.0 standard decompress 8-14 reserved 15 this structure is in ROM and can't be modified (server capabilities only) (Table 0623) Call MRCI entry point with: DS:SI -> MRCREQUEST structure (see #0624) CX = type of client (0000h application, 0001h file system) AX = operation 0001h perform standard compression 0002h perform standard decompression 0004h perform update compression 0008h perform MaxCompress 0020h perform incremental decompression 0040h perform MRCI 2.0 standard compression 0080h perform MRCI 2.0 standard decompression AX = FFFFh clear flags BX = bitmask of flags to clear (set bits in BX are flags to clear) Return: AX = status 0000h successful 0001h invalid function 0002h server busy, try again 0003h destination buffer too small 0004h incompressible data 0005h bad compressed data format BP destroyed (MS-DOS 6.2) Note: MRCI driver may chain to a previous driver Format of MRCREQUEST structure: Offset Size Description (Table 0624) 00h DWORD pointer to source buffer 04h WORD size of source buffer (0000h = 64K) 06h WORD (UpdateCompress only) (call) offset in source buffer of beginning of changed data (ret) offset in destination buffer of beginning of changed compressed data 08h DWORD pointer to destination buffer must contain original compressed data for UpdateCompress 0Ch WORD size of destination buffer (0000h = 64K) any compression: size of buffer for compressed data standard decompression: number of bytes to be decompressed incremental decompression: number of byte to decompress now (ret) actual size of resulting data 0Eh WORD client compressed data storage allocation size 10h DWORD incremental decompression state data set to 00000000h before first incremental decompression call Notes: the source and destination buffers may not overlap the source and destination buffer sizes should normally be the same application should not update the contents of the MRCREQUEST structure between incremental decompression calls --------X-1AB101----------------------------- INT 1A - Intel PCI BIOS v2.0c - INSTALLATION CHECK AX = B101h Return: AH = 00h if installed CF clear EDX = 20494350h (' ICP') EDI = physical address of protected-mode entry point (see #0627) AL = PCI hardware characteristics (see #0626) BH = PCI interface level major version (BCD) BL = PCI interface level minor version (BCD) CL = number of last PCI bus in system EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Note: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call SeeAlso: AX=B181h (Table 0625) Values for PCI BIOS v2.0c status codes: 00h successful 81h unsupported function 83h bad vendor ID 86h device not found 87h bad PCI register number Bitfields for PCI hardware characteristics: Bit(s) Description (Table 0626) 0 configuration space access mechanism 1 supported 1 configuration space access mechanism 2 supported 2-3 reserved 4 Special Cycle generation mechanism 1 supported 5 Special Cycle generation mechanism 2 supported 6-7 reserved (Table 0627) Call protected-mode entry point with: registers as for real/V86-mode INT call CS = ring 0 descriptor with access to full address space Return: as for real/V86-mode call --------X-1AB102----------------------------- INT 1A - Intel PCI BIOS v2.0c - FIND PCI DEVICE AX = B102h CX = device ID DX = vendor ID SI = device index (0-n) Return: CF clear if successful CF set on error AH = status (00h,83h,86h) (see #0625) 00h successful BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 func) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call device ID FFFFh may be reserved as a wildcard in future implementations the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation all devices sharing a single vendor ID and device ID may be enumerated by incrementing SI from 0 until error 86h is returned SeeAlso: AX=B182h --------X-1AB103----------------------------- INT 1A - Intel PCI BIOS v2.0c - FIND PCI CLASS CODE AX = B103h ECX = class code (see also #F057,#0628) bits 31-24 unused bits 23-16 class bits 15-8 subclass bits 7-0 programming interface SI = device index (0-n) Return: CF clear if successful CF set on error AH = status (00h,86h) (see #0625) 00h successful BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 func) 86h device not found EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation all devices sharing the same Class Code may be enumerated by incrementing SI from 0 until error 86h is returned SeeAlso: AX=B183h --------X-1AB106----------------------------- INT 1A - Intel PCI BIOS v2.0c - PCI BUS-SPECIFIC OPERATIONS AX = B106h BL = bus number EDX = Special Cycle data Return: CF clear if successful CF set on error AH = status (00h,81h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Note: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call SeeAlso: AX=B186h,INT 2F/AX=1684h/BX=304Ch --------X-1AB108----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION BYTE AX = B108h BL = device/function number (bits 7-3 device, bits 2-0 function) BH = bus number DI = register number (0000h-00FFh) (see #0628) Return: CF clear if successful CL = byte read CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B109h,AX=B10Ah,AX=B188h,INT 2F/AX=1684h/BX=304Ch --------X-1AB109----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION WORD AX = B109h BL = device/function number (bits 7-3 device, bits 2-0 function) BH = bus number DI = register number (0000h-00FFh) (see #0628) Return: CF clear if successful CX = word read CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B108h,AX=B10Ah,AX=B189h,INT 2F/AX=1684h/BX=304Ch --------X-1AB10A----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION DWORD AX = B10Ah BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) (see #0628) Return: CF clear if successful ECX = dword read CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B108h,AX=B109h,AX=B18Ah,INT 2F/AX=1684h/BX=304Ch Format of PCI Configuration Data: Offset Size Description (Table 0628) 00h WORD vendor ID (read-only) (see #0629) FFFFh returned if requested device non-existent 02h WORD device ID (read-only) 04h WORD command register (see #0630) 06h WORD status register (see #0631) 08h BYTE revision ID 09h 3 BYTEs class code bits 7-0: programming interface bits 15-8: sub-class bits 23-16: class code (see also #F057) 0Ch BYTE cache line size 0Dh BYTE latency timer 0Eh BYTE header type bits 6-0: header format 00h other 01h PCI-to-PCI bridge 02h PCI-to-CardBus bridge bit 7: multi-function device 0Fh BYTE Built-In Self-Test result (see #0632) ---header type 00h--- 10h DWORD base address 0 (see #0633) (OpenHCI) base address of host controller registers (see #3330) 14h DWORD base address 1 18h DWORD base address 2 1Ch DWORD base address 3 20h DWORD base address 4 24h DWORD base address 5 28h DWORD CardBus CIS pointer (read-only) (see #0635) 2Ch WORD subsystem vendor ID or 0000h 2Eh WORD subsystem ID or 0000h 30h DWORD expansion ROM base address (see #0634) 34h BYTE offset of capabilities list within configuration space (R/O) (only valid if status register bit 4 set) (see #3325) 35h 3 BYTEs reserved 38h DWORD reserved 3Ch BYTE interrupt line 00h = none, 01h = IRQ1 to 0Fh = IRQ15 3Dh BYTE interrupt pin (read-only) (00h = none, else indicates INTA# to INTD#) 3Eh BYTE minimum time bus master needs PCI bus ownership, in 250ns units (read-only) 3Fh BYTE maximum latency, in 250ns units (bus masters only) (read-only) 40h 48 DWORDs varies by device (see #0638,#0639,#0640,#0643) ---header type 01h--- 10h DWORD base address 0 (see #0633) 14h DWORD base address 1 18h BYTE primary bus number (for bus closer to host processor) 19h BYTE secondary bus number (for bus further from host processor) 1Ah BYTE subordinate bus number 1Bh BYTE secondary latency timer 1Ch BYTE I/O base (see #0636) 1Dh BYTE I/O limit (see #0636) 1Eh WORD secondary status 20h WORD memory base (see #0637) 22h WORD memory limit 24h WORD prefetchable memory base 26h WORD prefetchable memory limit 28h DWORD prefetchable base, upper 32 bits 2Ch DWORD prefetchable limit, upper 32 bits 30h WORD I/O base, upper 16 bits 32h WORD I/O limit, upper 16 bits 34h DWORD reserved 38h DWORD expansion ROM base address 3Ch BYTE interrupt line 3Dh BYTE interrupt pin (read-only) 3Eh WORD bridge control 40h 48 DWORDs varies by device (see #0638,#0639,#0640,#0643) ---header type 02h--- 10h DWORD CardBus Socket/ExCa base address (see #3309) bits 31-12: start address of socket interface register block in 4K blocks bits 11-0: reserved (0) 14h BYTE offset of capabilities list within configuration space (R/O) (only valid if status register bit 4 set) (see #3325) 15h BYTE reserved 16h WORD secondary status 18h BYTE PCI bus number 19h BYTE CardBus bus number 1Ah BYTE subordinate bus number 1Bh BYTE CardBus latency timer 1Ch DWORD memory base address 0 20h DWORD memory limit 0 24h DWORD memory base address 1 28h DWORD memory limit 1 2Ch WORD I/O base address 0 2Eh WORD I/O base address 0 high word (optional) 30h WORD I/O limit 0 32h WORD I/O limit 0 high word (optional) 34h WORD I/O base address 1 36h WORD I/O base address 1 high word (optional) 38h WORD I/O limit 1 3Ah WORD I/O limit 1 high word (optional) 3Ch BYTE interrupt line 3Dh BYTE interrupt pin (read-only) (no interrupt used if 00h) 3Eh WORD bridge control 40h WORD subsystem vendor ID 42h WORD subsystem device ID 44h DWORD 16-bit PC Card legacy mode base address (for accessing ExCa registers) 48h 14 DWORDs reserved 80h 32 DWORDs varies by device (see #0638,#0639,#0640,#0643) (Table 0629) Values for PCI vendor ID: 003Dh Martin-Marietta Corporation 0E11h Compaq 1000h Symbios Logic Inc (formerly NCR) 1002h ATI (see #3444) 1003h ULSI Systems 1004h VLSI Technologies 1005h Avance Logics (ADL) 1006h Reply Group 1007h Netframe Systems Inc. 1008h Epson 100Ah Phoenix Technologies 100Bh National Semiconductor 100Ch Tseng Labs (see #3443) (also ID 10BEh) 100Dh AST Research 100Eh Weitek 1010h Video Logic Ltd 1011h DEC (see #3442) 1012h Micronics Computers 1013h Cirrus Logic (see #3440,#0028) 1014h IBM 1015h LSI Logic Corp. of Canada 1016h ICL Personal Systems 1017h SPEA Software AG 1018h Unisys 1019h EliteGroup Computer Sys 101Ah NCR/AT&T GIS 101Bh Vitesse Semiconductor 101Ch Western Digital 101Eh AMI 101Fh Picturetel 1020h Hitachi Computer Electronics 1021h Oki Electric Industry 1022h Advanced Micro Devices (see #3439) 1023h Trident Microsystems (see #3441) 1024h Zenith Data Systems 1025h Acer 1028h Dell Computer Corporation 1029h Siemens Nixdorf 102Ah LSI Logic, Headland Division 102Bh Matrox 102Ch Chips & Technologies 102Dh Wyse Technologies 102Eh Olivetti Advanced Technology 102Fh Toshiba America 1030h TMC Research 1031h Miro / Micro Computer Products AG 1032h Compaq 1033h NEC Corporation 1034h Burndy Corporation 1035h Computers and Communications Research Lab 1036h Future Domain 1037h Hitachi Micro Systems 1038h AMP Incorporated 1039h Silicon Integrated System (SIS) 103Ah Seiko Epson Corporation 103Bh Tatung Corp. of America 103Ch Hewlett-Packard 103Eh Solliday 103Fh Logic Modeling 1040h Kubota Pacific 1041h Computrend 1042h PC Technology (see also PORT 03F0h"PCTech") 1043h Asustek 1044h Distributed Processing Technology (DPT) 1045h OPTi (see #3445) 1046h IPC Corporation, Ltd. 1047h Genoa Systems Corp. 1048h Elsa GmbH 1049h Fountain Technology 104Ah SGS Thomson Microelectric 104Bh BusLogic 104Ch Texas Instruments 104Dh Sony Corporation 104Eh Oak Technology 104Fh Co-Time Computer Ltd. 1050h Winbond 1051h Anigma Corp. 1052h Young Micro Systems 1054h Hitachi, Ltd. 1055h EFAR Microsystems 1056h ICL 1057h Motorola 1058h Electronics and Telecommunications Research 1059h Teknor Microsystems 105Ah Promise Technology 105Bh Foxconn International 105Ch Wipro Infotech Ltd. 105Dh Number 9 Computer Company 105Eh VTech Engineering Canada, Ltd. 105Fh Infotronic America, Inc. 1060h United Microelectronics (UMC) 1061h 8x8 (X Tech) 1062h Maspar Computer Copr. 1063h Ocean Office Automation 1064h Alcatel Cit 1065h Texas Microsystems 1066h PicoPower Technology 1067h Mitsubishi Electronics 1068h Diversified Technology 1069h Mylex Corporation 106Ah Aten Research 106Bh Apple Computer 106Ch Hyundai Electronics America 106Dh Sequent 106Eh DFI Inc. 106Fh City Gate Development, Ltd. 1070h Daewoo Telecom Ltd. 1071h Mitac 1072h GIT Co., Ltd. 1073h Yamaha Corporation 1074h NexGen Microsystems 1075h Advanced Integration Research 1076h Chaintech Computer Co. Ltd. 1077h Q Logic 1078h Cyrix Corporation 1079h I-Bus 107Ah Networth 107Bh Gateway 2000 107Ch Goldstar Co. Ltd. 107Dh Leadtek Research 107Eh Interphase Corporation 107Fh Data Technology Corporation (DTC) 1080h Contaq Microsystems 1081h Supermac Technology 1082h EFA Corporation of America 1083h Forex Computer Corporation 1084h Parador 1085h Tulip Computers Int'l BV 1086h J. Bond Computer Systems 1087h Cache Computer 1088h Microcomputer Systems (M) Son 1089h Data General Corporation 108Ah Bit3 Computer 108Ch Elonex PLC (Oakleigh Systems, Inc) 108Dh Olicom 108Eh Sun Microsystems 108Fh Systemsoft Corporation 1090h Encore Computer Corporation 1091h Intergraph Corporation 1092h Diamond Computer Systems 1093h National Instruments 1094h First International Computers (FIC) 1095h CMD Technology, Inc. 1096h Alacron 1097h Appian Technology 1098h Vision / Quantum Designs Ltd 1099h Samsung Electronics Co. Ltd. 109Ah Packard Bell 109Bh Gemlight Computer Ltd. 109Ch Megachips Corporation 109Dh Zida Technologies 109Eh Brooktree Corporation 109Fh Trigem Computer Inc. 10A0h Meidensha Corporation 10A1h Juko Electronics Inc. Ltd. 10A2h Quantum Corporation 10A3h Everex Systems Inc. 10A4h Globe Manufacturing Sales 10A5h Racal Interlan 10A6h Informtech Industrial Ltd. 10A7h Benchmarq Microelectronics 10A8h Sierra Semiconductor 10A9h Silicon Graphics 10AAh ACC Microelectronics 10ABh Digicom 10ACh Honeywell IASD 10ADh Symphony Labs 10AEh Cornerstone Technology 10AFh Microcomputer Systems 10B0h CardExpert Technology 10B1h Cabletron Systems, Inc. 10B2h Raytheon Company 10B3h Databook Inc 10B4h STB Systems 10B5h PLX Technology 10B7h 3com Corporation 10B8h Standard Microsystems Corporation (SMC) 10B9h Acer Labs Inc. 10BAh Mitsubishi Electronics Corp. 10BBh Dapha Electronics Corporation 10BCh Advanced Logic Research Inc. (ALR) 10BDh Surecom Technology 10BEh Tseng Labs International Corp. (see #3443) 10BFh Most Inc. 10C0h Boca Research Inc. 10C1h ICM Corp. Ltd. 10C2h Auspex Systems Inc. 10C3h Samsung Semiconductors 10C4h Award Software International Inc. 10C5h Xerox Corporation 10C6h Rambus Inc. 10C7h Media Vision 10C8h Neomagic Corporation 10C9h DataExpert Corporation 10CAh Fujitsu 10CBh Omron Corporation 10CCh Mentor Arc Inc. 10CDh Advanced System Products 10CEh Radius Inc. 10CFh Citicorp TTI 10D0h Fujitsu Limited 10D1h Future+ Systems 10D2h Molex Incorporated 10D3h Jabil Circuit Inc. 10D4h Hualon Microelectronics 10D5h Autologic Inc. 10D6h Cetia 10D7h BCM Advanced Research 10D8h Advanced Peripherals Labs 10D9h Macronix International Co. Ltd 10DAh Thomas-Conrad Corporation 10DBh Rohm Research 10DCh CERN/ECP/EDU 10DDh Evans & Sutherland 10DEh NVidia Corporation 10DFh Emulex Corporation 10E0h Integrated Micro Solutions (IMS) 10E1h TekRAM Technology Corporation Ltd. 10E2h Aptix Corporation 10E3h Newbridge Microsystems 10E4h Tandem Computers 10E5h Micro Industries 10E6h Gainbery Computer Products Inc. 10E7h Vadem 10E8h Applied Micro Circuits Corp. 10E9h Alps Electronic Corp. Ltd. 10EAh Integraphics Systems 10EBh Artist Graphics 10ECh Realtek Semiconductor 10EDh ASCII Corporation 10EEh Xilinx Corporation 10EFh Racore Computer Products 10F0h Peritek Corporation 10F1h Tyan Computer 10F2h Achme Computer Inc. 10F3h Alaris Inc. 10F4h S-MOS Systems 10F5h NKK Corporation 10F6h Creative Electronic Systems SA 10F7h Matsushita Electric Industrial Corp. Ltd. 10F8h Altos India Ltd. 10F9h PC Direct 10FAh Truevision 10FBh Thesys Microelectronics 10FCh I/O Data Device Inc. 10FDh Soyo Technology Corp. Ltd. 10FEh Fast Electronic GmbH 10FFh N-Cube 1100h Jazz Multimedia 1101h Initio Corporation 1102h Creative Labs 1103h Triones Technologies Inc. 1104h Rasterops 1105h Sigma Designs, Inc. 1106h VIA Technologies 1107h Stratus Computer 1108h Proteon Inc. 1109h Cogent Data Technologies 110Ah Siemens AG / Siemens Nixdorf AG 110Bh Xenon Microsystems 110Ch Mini-Max Technology Inc. 110Dh ZNyX Corporation 110Eh CPU Technology 110Fh Ross Technology 1110h Powerhouse Systems 1111h Santa Cruz Operation (SCO) 1112h Rockwell / RNS division of Meret Communications Inc. 1113h Accton Technology Corporation 1114h Atmel Corporation 1115h DuPont Pixel Systems 1116h Data Translation 1117h Datacube Inc. 1118h Berg Electronics 1119h Vortex Computersysteme GmbH 111Ah Efficient Networks, Inc. 111Bh Teledyne Electronic Systems 111Ch Tricord Systems, Inc. 111Dh Integrated Device Technology 111Eh Eldec Corporation 111Fh Precision Digital Images 1120h EMC Corporation 1121h Zilog 1122h Multi-tech Systems, Inc. 1124h Leutron Vision AG 1125h Eurocore 1126h Vigra 1127h FORE Systems 1128h ??? 1129h Firmworks 112Ah Hermes Electronics Co. 112Bh Linotype - Hell AG 112Dh Ravicad 112Eh Infomedia MicroElectronics Inc 112Fh Imaging Technology 1130h Computervision 1131h Philips Semiconductors 1132h Mitel Corp 1133h Eicon Technology Corporation 1134h Mercury Computer Systems Inc 1135h Fuji Xerox Co Ltd 1136h Momentum Data Systems 1137h Cisco Systems Inc 1138h Ziatech Corporation 1139h Dynamic Pictures Inc 113Ah FWB Inc 113Ch Cyclone Microsystems 113Dh Leading Edge Products Inc 113Eh Sanyo Electric Co 113Fh Equinox Systems 1140h Intervoice Inc 1141h Crest Microsystem Inc 1142h Alliance Semiconductor Corp 1143h Netpower, Inc. 1144h Cincinnati Milacron 1145h Workbit Corp 1146h Force Computers 1147h Interface Corp. 1148h Schneider & Koch Co. 1149h Win System Corporation 114Ah VMIC 114Bh Canopus Co. 114Ch Annabooks 114Dh IC Corporation 114Eh Nikon Systems Inc 114Fh Digi International / Stargate 1150h Thinking Machines Corp. 1151h JAE Electronics Inc. 1152h Megatek 1153h Land Win Electronic Corp. 1154h Melco Inc. 1155h Pine Technology Ltd. 1156h Periscope Engineering 1157h Avsys Corporation 1158h Voarx R&D Inc. 1159h MuTech 115Ah Harleguin Ltd. 115Bh Parallax Graphics 115Ch ??? 115Dh Xircom 115Eh Peer Protocols Inc. 115Fh ??? 1160h Megasoft Inc. 1161h PFU Ltd. 1162h OA Laboratory Co Ltd. 1163h ??? 1164h Advanced Peripherals Tech 1165h Imagraph Corporation 1166h Pequr Technology Inc. 1167h Mutoh Industries, Inc. 1168h Thine Electronics Inc 1169h ??? 116Ah Polaris Communications 116Bh Connectware Inc 116Ch ??? 116Dh ??? 116Eh ??? 116Fh Workstation Technology 1170h Inventec Corporation 1171h Loughborough Sound Images 1172h Altera Corporation 1173h Adobe Systems 1174h Bridgeport Machines 1175h Mitron Computer Inc. 1176h SBE 1177h Silicon Engineering 1178h Alfa Inc 1179h Toshiba America Info Systems 117Ah A-Trend Technology 117Bh ??? 117Ch Atto Technology 117Dh ??? 117Eh T/R Systems 117Fh ??? 1180h Ricoh Co Ltd 1181h Telmatics International 1182h ??? 1183h Fujikura Ltd 1184h Forks Inc 1185h Dataworld 1186h D-Link System Inc 1187h Advanced Technology Laboratories 1188h Shima Seiki Manufacturing Ltd. 1189h Matsushita Electronics 118Ah Hilevel Technology 118Bh ??? 118Ch Corollary Inc 118Dh BitFlow Inc 118Eh Hermstedt GmbH 118Fh ??? 1190h ??? 1191h Artop Electric 1192h Densan Co. Ltd 1193h Zeitnet Inc. 1194h Toucan Technology 1195h Ratoc System Inc 1196h Hytec Electronics Ltd 1197h Gage Applied Sciences Inc. 1198h Lambda Systems Inc 1199h Digital Communications Associates Inc, 119Ah Mind Share Inc. 119Bh Omega Micro Inc. 119Ch Information Technology Inst. 119Dh Bug Sapporo Japan 119Eh Fujitsu 119Fh Bull Hn Information Systems 11A0h Convex Computer Corporation 11A1h Hamamatsu Photonics K.K. 11A2h Sierra Research and Technology 11A4h Barco 11A5h MicroUnity Systems Engineering, Inc. 11A6h Pure Data 11A7h Power Computing Corp. 11A9h InnoSys Inc. 11AAh Actel 11ABh Galileo Technology Ltd. 11ACh Canon Information Systems 11ADh Lite-On Communications Inc 11AEh Scitex Corporation Ltd 11AFh Pro-Log Corporation 11B0h V3 Semiconductor Inc. 11B1h Apricot Computers 11B2h Eastman Kodak 11B3h Barr Systems Inc. 11B4h Leitch Technology International 11B5h Radstone Technology Plc 11B6h United Video Corp 11B7h Motorola 11B8h Xpoint Technologies Inc 11B9h Pathlight Technology Inc. 11BAh Videotron Corp 11BBh Pyramid Technology 11BCh Network Peripherals Inc 11BDh Pinnacle Systems Inc. 11BEh International Microcircuits Inc 11C3h NEC Corporation 11C4h Document Technologies Ind. 11C5h Shiva Corporatin 11C7h D.C.M. Data Systems 11C8h Dolphin Interconnect Solutions 11C9h MAGMA 11CAh LSI Systems Inc 11CBh Specialix Research Ltd. 11CCh Michels & Kleberhoff Computer GmbH 11CDh HAL Computer Systems Inc. 11DEh Zoran Corporation 11F8h PMC-Sierra Inc. 120Eh Cyclades 1220h Ariel Corporation 122Dh Aztech Systems Ltd 1239h The 3DO Company 124Dh Stallion Technologies 1254h Linear Systems Ltd. 125Ch Aurora Technologies, Inc. 1275h Network Appliance 127Ah Rockwell Semiconductor Systems 1296h Kofax Image Products 12C5h Picture Elements, Inc. 1C1Ch Symphony 1DE1h TekRAM 3D3Dh 3DLabs 4005h Avance Logic, Inc. 4B10h Buslogic Inc. 5333h S3 (see also #3307) 5700h Netpower 6374h c't Magazin fuer Computertechnik 8008h Quanc?m Electronic GmbH 8086h Intel (see also #3308) 8800h Trigem Computer 8E0Eh Computone Corporation 9004h Adaptec (see #3446) 907Fh Atronics EDD8h Ark Logic Inc SeeAlso: #0628 (Table 3444) Values for ATI PCI device code: 4158h 68800AX (Mach32) 4354h 215CT222 4358h 210888CX 4758h 210888GX (Mach64) SeeAlso: #0629 (Table 3442) Values for DEC PCI device code: 0001h DEC BRD 0002h Tulip 0009h Tulip Fast 000Fh FDDI 0014h Tulip Plus SeeAlso: #0629 (Table 3440) Values for Cirrus Logic PCI device code: 00A0h Cirrus 5430 00A4h Cirrus 5434-4 00A8h Cirrus 5434-8 1100h Cirrus 6729 1200h Cirrus 7542 SeeAlso: #0629 (Table 3439) Values for Advanced Micro Devices PCI device code: 2000h Am79C970 (Lance), Am79C971 (PCnet-FAST, PCI revision ID is 2xh) 2020h Am53c974 SCSI SeeAlso: #0629 (Table 3441) Values for Trident PCI device code: 9420h Trident 9420 9440h Trident 9440 SeeAlso: #0629 (Table 3445) Values for OPTi PCI device code: C557h 82C557 C558h 82C558 C621h 82C621 C822h 82C822 SeeAlso: #0629 (Table 3443) Values for Tseng Labs PCI device code: 3202h ET4000/W32p-2 3205h ET4000/W32p-B 3206h ET4000/W32p-C 3207h ET4000/W32p-D SeeAlso: #0629 (Table 3307) Values for S3 PCI device code: 8811h Trio64V+ 8880h S3 868 88B0h S3 928 88C0h S3 864-1 88C1h S3 864-2 88D0h S3 964-1 88D1h S3 964-2 88F0h S3 968 SeeAlso: #0629,#3308 (Table 3308) Values for Intel PCI device code: 0122h 82437FX (typo in docs??? 122?h instead?) 0482h 82375 EISA 0483h 82424 Cache Controller 0484h 82378/82379 Bus Interface (Mercury/Saturn/Neptune chipsets) (see #0642) 0486h 82425EX/82430 04A3h 82434 (Neptune) (see #0640) 1223h Intel 7116 1227h 82865 122Dh 82437 (Triton) 122Eh 82371FB ISA Bridge (Triton) 1230h 82338 IDE controller / 82371FB IDE function (Triton) 1234h 82371MX 1235h 82437MX 1237h 82441FX (see #3424) 1250h 82439HX (430HX chipset) (see #3407) 7000h 82371SB ISA Bridge (see #3410) 7010h 82371SB IDE controller (see #3411) 7020h 82371SB (see #3414) 7030h 82437VX (430VX chipset) (see #3392) 84C4h Pentium Pro CPU SeeAlso: #0629,#3307 (Table 3446) Values for Adaptec PCI device code: 5078h Adaptec 7850 7078h Adaptec 294x 7178h Adaptec 2940 7278h Adaptec 7872 SeeAlso: #0629 Bitfields for PCI Configuration Command Register: Bit(s) Description (Table 0630) 0 I/O access enabled 1 memory access enabled 2 bus master enable 3 special cycle recognition enabled 4 memory write and invalidate enabled 5 VGA palette snoop enabled 6 parity error response enabled 7 wait cycles enabled 8 system error (SERR# line) enabled 9 fast back-to-back transactions enabled 15-10 reserved SeeAlso: #0628,#0631 Format of PCI Configuration Status Register: Bit(s) Description (Table 0631) 3-0 reserved (0) 4 new capabilities list is present (first entry pointed at by byte at 34h or 14h) 5 capable of running at 66 MHz 6 UDF supported 7 capable of fast back-to-back transactions 8 data parity error reported 10-9 device select timing 00 fast 01 medium 10 slow 11 reserved 11 signaled target abort 12 received target abort 13 received master abort 14 signaled system error (device is asserting SERR# line) 15 detected parity error (set even if parity error reporting is disabled) Note: bits 12 and 13 are cleared by writing a 1 into the corresponding bit SeeAlso: #0628,#0630 Bitfields for PCI Configuration Built-In Self-Test register: Bit(s) Description (Table 0632) 3-0 completion code (0000 = successful) 5-4 reserved 6 start BIST (set to one to start, cleared automatically on completion) 7 BIST-capable Notes: this register is hardwired to 00h if no BIST capability software should timeout the BIST after two seconds SeeAlso: #0628 Bitfields for PCI Configuration Base Address: Bit(s) Description (Table 0633) 0 address type (0 = memory space, 1 = I/O space) ---memory address--- 2-1 address type 00 anywhere in first 4GB 01 below 1MB 10 anywhere in 64-bit address space 11 reserved 3 prefetchable 31-4 bits 31-4 of base memory address if addressable in first 1MB or 4GB 63-4 bits 63-4 of base memory address if addressable in 64-bit memory (bits 63-32 are stored in the following base address DWORD) ---I/O address--- 1 reserved 31-2 bits 31-2 of base I/O port SeeAlso: #0628,#3330 Bitfields for PCI Configuration Expansion ROM Address: Bit(s) Description (Table 0634) 0 address decode enable (ROM address is valid) 10-1 reserved 31-11 bits 31-11 of ROM's starting physical address SeeAlso: #0628 Format of PCI Capabilities List: Offset Size Description (Table 3325) 00h BYTE capability identifier 01h PCI Power Managment 01h BYTE offset of next item (within configuration space) or 00h N BYTEs varies by capability type ---PCI Power Management--- 02h WORD power managment capabilities (see #3326) (read-only) 04h WORD power managment capabilities status register (see #3327) 06h BYTE PMCSR bridge support extensions (see #3328) 07h BYTE (optional) read-only data register (see #3329) Note: this information is from the v0.93 draft of the specification and is subject to change SeeAlso: #0628,#0631 Bitfields for PCI Power Management Capabilities: Bit(s) Description (Table 3326) 15 reserved (0) 14-12 PME# support bit 12: PME# can be asserted from power state D0 bit 13: PME# can be asserted from power state D1 bit 14: PME# can be asserted from power state D2 11 reserved (0) 10 D2 power state supported 9 D1 power state supported 8 full-speed clock is required in state D0 for proper operation (if clear, device may be run at reduced clock except when actually being accessed) 7-6 dynamic clock control support 00 not bridge, no dynamic clock control, or secondary bus' clock is is tied to primary bus' clock 01 bridge is capable of dynamic clock control 10 reserved 11 secondary bus has independent clock, but dynamic clock not supported 5 device-specific initialization is required 4-3 reserved (0) 2-0 specification version 001 = v1.0; four bytes of power management registers Note: this information is from the v0.93 draft of the specification and is subject to change SeeAlso: #3325,#3327,#3328 Bitfields for PCI Power Management Capabilities Status Register: Bit(s) Description (Table 3327) 15 PME status: if set, PME# is (or would be) asserted writing a 1 to this bit clears it 14-13 (read-only) scale factor to apply to contents of Data register 00 unknown (or unimplemented data) 01 x0.1 10 x0.01 11 x0.001 12-9 (read-write) data select (see #3329) 8 (read-write) enable PME# assertion 7-5 reserved (0) 4 (read-write) enable dynamic data reporting when set, PME# is asserted whenever the value in the Data register changes significantly 3-2 reserved (0) 1-0 (read-write) current power state 00 = D0 ... 11 = D3 Note: this information is from the v0.93 draft of the specification and is subject to change SeeAlso: #3325,#3326,#3328 Bitfields for PCI Power Management PMCSR bridge support extension: Bit(s) Description (Table 3328) 7 (read-only) Bus Power Control Enable 6 (read-only) Bus Power State B3 supported 5 (read-only) Bus Power State B2 supported 4 dynamic clock control enable 3-0 reserved (0) Note: this information is from the v0.93 draft of the specification and is subject to change SeeAlso: #3325,#3326,#3327 (Table 3329) Values for PCI Power Management Data Select: 00h D0-state power consumed in watts (+20%/-10%) 01h D1-state power consumed in watts (+20%/-10%) 02h D2-state power consumed in watts (+20%/-10%) 03h D3-state power consumed in watts (+20%/-10%) 04h D0-state power dissipated into chassis in watts 05h D1-state power dissipated into chassis in watts 06h D2-state power dissipated into chassis in watts 07h D3-state power dissipated into chassis in watts 08h-0Fh reserved SeeAlso: #3327 Bitfields for PCI Configuration CardBus CIS Pointer: Bit(s) Description (Table 0635) 2-0 address space 000 in device's device-specific configuration space 001 in memory pointed to by base address register 0 ... 110 in memory pointed to by base address register 5 111 in device's expansion ROM 27-3 offset within address space defined by bits 2-0 31-28 ROM image number SeeAlso: #0628 Format of CardBus Socket/ExCA socket interface register space: Offset Size Description (Table 3309) 00h DWORD Socket Event Register (see #3311) 04h DWORD Socket Mask Register (see #3312) 08h DWORD Socket Present State Register (see #3313) 0Ch DWORD Socket Force Event Register (see #3314) 10h DWORD Socket Control Register (see #3315) 14h 3 DWORDs reserved 20h DWORD Socket Power Management Register 90h BYTE (TI PCI1130) Retry Status Register 91h BYTE (TI PCI1130) Card Control Register (see #3316) 92h BYTE (TI PCI1130) Device Control Register (see #3317) 93h BYTE (TI PCI1130) Buffer Control Register 800h 64+ BYTEs ExCa Socket Interface Registers (see #3310) Format of ExCa memory-mapped registers: Offset Size Description (Table 3310) 00h BYTE identification and revision register 01h BYTE interface status register 02h BYTE power control register 03h BYTE interrupt and general control 04h BYTE card status change 05h BYTE card status change interrupt configuration 06h BYTE address window enable 07h BYTE I/O window control register 08h WORD I/O window 0 start address 0Ah WORD I/O window 0 end address 0Ch WORD I/O window 1 start address 0Eh WORD I/O window 1 end address 10h WORD memory window 0 start address 12h WORD memory window 0 end address 14h WORD memory window 0 offset address 16h 2 BYTEs user-defined 18h WORD memory window 1 start address 1Ah WORD memory window 1 end address 1Ch WORD memory window 1 offset address 1Eh BYTE user-defined 1Fh BYTE reserved 20h WORD memory window 2 start address 22h WORD memory window 2 end address 24h WORD memory window 2 offset address 26h 2 BYTEs user-defined 28h WORD memory window 3 start address 2Ah WORD memory window 3 end address 2Ch WORD memory window 3 offset address 2Eh 2 BYTEs user-defined 30h WORD memory window 4 start address 32h WORD memory window 4 end address 34h WORD memory window 4 offset address 36h 10 BYTEs user-defined ---optional--- 40h BYTE memory window 0 start address high byte 41h BYTE memory window 1 start address high byte 42h BYTE memory window 2 start address high byte 43h BYTE memory window 3 start address high byte 44h BYTE memory window 4 start address high byte 45h-7FFh user-defined SeeAlso: #3309 Bitfields for CardBus Socket Event Register: Bit(s) Description (Table 3311) 0 CSTSCHG pin asserted (status change) 1 CCD1# (card detect 1) changed state 2 CCD2# (card detect 2) changed state 3 interface power cycle completed 31-4 reserved (0) Note: the bits in this register are set by the bridge, and cleared by writing a one into the bits one wishes to clear SeeAlso: #3309,#3312,#3314 Bitfields for CardBus Socket Event Mask Register: Bit(s) Description (Table 3312) 0 write-protect (enable status-change interrupt on WriteProtect switch) 1 ready mask (allow status-change interrupt on Ready line change) 3-2 battery condition (allow status-change int on battery-condition change) 4 general wakeup enabled 5 binary audio mode enabled on CAUDIO pin 6 Pulse Width Modulation enabled on CAUDIO pin (CAUDIO state undefined if both bits 5 and 6 set) 13-7 reserved (0) 14 Wakeup mask (enable wakeup events via status-change pin) 15 enable card interrupts via CINT# pin and wakeup events 31-16 reserved SeeAlso: #3309,#3311,#3313 Bitfields for CardBus Socket Present State Register: Bit(s) Description (Table 3313) 0 CSTSCHG pin asserted (status change) 1 CCD1# (card detect 1) changed state 2 CCD2# (card detect 2) changed state 3 interface power cycle completed 4 16-bit PC card inserted 5 CardBus card inserted 6 card's interrupt pin asserted 7 card inserted but type can not be determined 8 data may have been lost due to abrupt card removal 9 attempted to apply Vcc voltage not supported by the card 10 card can accept Vcc = 5.0 volts 11 card can accept Vcc = 3.3 volts 12 card can accept Vcc = X.X volts 13 card can accept Vcc = Y.Y volts 27-14 reserved (0) 28 socket can accept Vcc = 5.0 volts 29 socket can accept Vcc = 3.3 volts 30 socket can accept Vcc = X.X volts 31 socket can accept Vcc = Y.Y volts Note: bits 0-3 may be cleared by writing a 1 into the respective bits SeeAlso: #3309,#3311,#3312,#3315 Bitfields for CardBus Socket Force Event Register: Bit(s) Description (Table 3314) 0 write-protect 1 ready 2 battery voltage detect 2 3 battery voltage detect 1 4 general wakeup 14-5 reserved (0) 15 enable card interrupts via CINT# pin 31-16 reserved Note: this register can simulate events by forcing the values of some of the bits in the Event Mask Register; any bit of this register which is set to 1 forces the corresponding bit in the Mask Register to 1, while bits set to 0 leave the corresponding bit unchanged SeeAlso: #3309,#3311,#3315 Bitfields for CardBus Socket Control Register: Bit(s) Description (Table 3315) 2-0 Vpp control 000 power off 001 12.0 Volts 010 5.0 Volts 011 3.3 Volts 100 reserved (X.X Volts) 101 reserved (Y.Y Volts) 110 reserved 111 reserved 3 reserved (0) 6-4 Vcc control (as for Vpp, but 12.0V not supported) 31-7 reserved (0) SeeAlso: #3309,#3312,#3314 Bitfields for TI PCI1130 Card Control Register: Bit(s) Description (Table 3316) 0 interrupt pending 1 speaker output enabled 2 reserved 3 enable status-change interrupt routing (to INTA# for socket A, INTB# for socket B) 4 function interrupt routed to corresponding PCI interrupt pin 5 PCI interrupts enabled 6 ZOOM video mode enabled 7 Ring Indicator enabled on IRQ15/RI_OUT pin SeeAlso: #3309,#3317 Bitfields for TI PCI1130 Device Control Register: Bit(s) Description (Table 3317) 0 reserved (0) 2-1 interrupt mode enable 00 no interrupt 01 ISA mode (direct IRQ routing) 10 serialized interrupt mode 11 reserved 4-3 reserved 5 3volt Socket Capable force bit 6 5volt Socket Capable force bit 7 reserved SeeAlso: #3309,#3316 Bitfields for PCI Configuration I/O base and limit: Bit(s) Description (Table 0636) 3-0 (read-only) address decoding type 0000 16-bit 0001 32-bit other reserved 7-4 bits 15-12 of I/O address range SeeAlso: #0628,#0637 Bitfields for PCI Configuration memory base and limit: Bit(s) Description (Table 0637) 3-0 address decode type 0000 32-bit address decoder 0001 64-bit address decoder other reserved 15-4 bits 31-20 of memory address range SeeAlso: #0628,#0636 Format of PCI Configuration Data for VLSI VL82C591 Host/PCI bridge: Offset Size Description (Table 0638) 00h 64 BYTEs header (see #0628) (device ID 0005h) 40h BYTE bus number 41h BYTE subordinate bus number 42h WORD reserved 44h 4 DWORDs reserved 54h 2 BYTEs device-specific configuration registers 56h WORD reserved 58h 2 BYTEs device-specific configuration registers 5Ah WORD reserved 5Ch 5 BYTEs device-specific configuration registers ... FFh BYTE device-specific configuration register SeeAlso: #0628,#0629,#0639 Format of PCI Configuration data for VLSI VL82C593 PCI/ISA bridge: Offset Size Description (Table 0639) 00h 64 BYTEs header (see #0628) (device ID 0006h) 40h 4 DWORDs reserved 50h 11 BYTEs device-specific configuration registers 5Bh BYTE reserved 5Ch 25 BYTEs device-specific configuration registers 75h 138 BYTEs reserved FFh BYTE device-specific configuration register SeeAlso: #0628,#0638 Format of PCI Configuration data for Intel 82434 Cache/DRAM Controller: Offset Size Description (Table 0640) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 04A3h) 40h 16 BYTEs unused (hard-wired to 00h) 50h BYTE secondary (L2) cache control??? bit 0: ??? bit 1: ??? bit 2: enable L2 cache 51h BYTE deturbo frequency control register when deturbo mode is selected (see PORT 0CF9h), the chipset places a hold on the memory bus for a fraction of the time inversely proportional to the value in this register (i.e. C0h = 1/4, 80h = 1/2, 40h = 3/4, 20h = 7/8, etc.) (only bits 7-6 writable, bits 5-0 hardwired to 0) 52h BYTE ??? bits 6-7: ??? bit 1: ??? bit 0: ??? 53h BYTE ??? 54h BYTE ??? bit 2: ??? 55h 2 BYTEs ??? 57h BYTE DRAM Control??? bit 3: ??? 58h BYTE DRAM Timing??? bit 0: 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 6 BYTEs DRAM Row Boundary registers 0-5 each register N indicates the amount of cumulative amount of memory in SIMM banks 0-N, in multiples of 1M; offset 65h contains the total amount of memory installed in the system 66h 2 BYTEs ??? (set to same value as 65h) 68h BYTE DRAM Row Type??? 69h 3 BYTEs ??? 6Ch DWORD unused??? (apparently hardwired to 00000000h) 70h BYTE ??? bits 1-0: ??? 71h BYTE ??? bit 3: ??? 72h BYTE System Management RAM control (see also #3404) bits 2-0: ??? bit 5: map SMM-mode memory (64K) into address space when bits 2-0 = 010 (default 3000h:0000h; can be changed by first SMM event) 73h 5 BYTEs ??? 78h WORD ??? 7Ah 2 BYTEs ??? 7Ch DWORD ??? bit 13: byte merging enabled 80h 128 BYTEs unused??? Note: the 82434 is part of the Intel Neptune chipset SeeAlso: #0642,#0643 Format of PCI Configuration data for Intel 82424 Cache Controller: Offset Size Description (Table 0641) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 0483h) 40h BYTE bus number 41h BYTE subordinate bus number 42h BYTE disconnect timer 50h BYTE host CPU selection 51h BYTE deturbo frequency control when deturbo mode is selected (see PORT 0CF9h), the chipset places a hold on the memory bus for a fraction of the time inversely proportional to the value in this register (i.e. C0h = 1/4, 80h = 1/2, 40h = 3/4, 20h = 7/8, etc.) 52h BYTE secondary cache control 53h BYTE write buffer control 54h BYTE PCI features control 55h BYTE DRAM Operation Mode Select 56h BYTE System Exception Handling 57h BYTE SMM Control Register 58h BYTE reserved 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see also #3401) 60h 4 BYTEs DRAM Row Boundary registers 0-3 each register N indicates amount of memory in rows 0-N (each row is 64 bits wide) boundary register 3 (offset 63h) contains the total system memory, which may not exceed 128M 64h 4 BYTEs unused??? 68h WORD Memory Hole-0 6Ah WORD Memory Hole-1 Note: the above field names are those given by EduWARE's PCI Configuration Manager v1.2 SeeAlso: #0640,#0643,#3392 Format of PCI Configuration data for Intel 82378 and 82379 ISA Bridges: Offset Size Description (Table 0642) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 0484h) (revision ID: bits 7-4: reserved bits 3-0: revision 0011 82378ZB A0-step 1000 82379AB A0-step) 40h BYTE PCI Control (see #3331) 41h BYTE PCI Arbiter Control (see #3332) 42h BYTE PCI Arbiter Priority Control (see #3333) 43h BYTE (82378ZB) PCI Arbiter Priority Control Extension Register bit 0: bank 3 fixed priority mode select (see also #3333) =0 REQ2# has higher priority =1 REQ3# has higher priority 44h BYTE MEMCS# Control (see #3334) 45h BYTE MEMCS# Bottom of Hole (address bits 23-16) 46h BYTE MEMCS# Top of Hole (address bits 23-16) 47h BYTE MEMCS# Top of Memory (address bits 28-21 == size in 2M incr.) 48h BYTE ISA Address Decoder Control (see #3335) 49h BYTE ISA Address Decoder ROM Block Enable (see #3336) 4Ah BYTE ISA Address Decoder Bottom of Hole (address bits 23-16) 4Bh BYTE ISA Address Decoder Top of Hole (address bits 23-16) 4Ch BYTE ISA Controller Recovery Time (see #0647) 4Dh BYTE ISA Clock Divisor (see #3337) 4Eh BYTE Utility Bus Chip Select Enable A (see #3338) 4Fh BYTE Utility Bus Chip Select Enable B (see #3339) 50h 4 BYTEs reserved 54h BYTE MEMCS# Attribute Register #1 (see #3340) attributes for 16K blocks from C0000h-CFFFFh 55h BYTE MEMCS# Attribute Register #2 (see #3340) attributes for 16K blocks from D0000h-DFFFFh 56h BYTE MEMCS# Attribute Register #3 (see #3340) attributes for 16K blocks from E0000h-EFFFFh 57h BYTE (82378) Scatter/Gather Relocation Base Adress (see #3341) (82379AB) reserved 58h 8 BYTEs reserved 60h BYTE (82378ZB) IRQ0# Route Control (see #3342) 61h BYTE (82378ZB) IRQ1# Route Control (see #3342) 62h BYTE (82378ZB) IRQ2# Route Control (see #3342) 63h BYTE (82378ZB) IRQ3# Route Control (see #3342) 64h 12 BYTEs reserved 70h BYTE (82378) reserved (82379AB, write-only) PIC/APIC Configuration Control (see #3343) 71h BYTE (82378) reserved (82379AB, write-only) APIC Base Address Relocation (see #3344,MEM FEC00000h) 72h 14 BYTEs reserved 80h WORD BIOS timer base address (see PORT 0078h) bits 15-2 are bits 15-2 of BIOS timer port address bit 1: reserved (0) bit 0: timer enabled (if disabled, other bits ignored) 82h 30 BYTEs unused??? A0h BYTE SMI Control (see #3345) A1h BYTE reserved A2h WORD SMI Enable (see #3346) A4h DWORD System Event Enable (SEE) (see #3347) A8h BYTE Fast-Off Timer (in minutes) A9h BYTE reserved AAh WORD SMI Request (see #3348) ACh BYTE (82378ZB) Clock Throttle STPCLK# Low Timer duration of STPCLK# low period in 32 microsecond units ADh BYTE reserved AEh BYTE (82378ZB) Clock Throttle STPCLK# High Timer duration of STPCLK# high period in 32 microsecond units AFh 81 BYTEs reserved SeeAlso: #0640,#3410,PORT 040Ah"82378ZB" Bitfields for Intel 82378/82379 PCI Control: Bit(s) Description (Table 3331) 7 reserved (0) 6 DMA Reserved Page Register Aliasing Control =0 alias PORT 80h-8Fh to PORT 90h-9Fh 5 Interrupt Acknowledge Enable =0 ignore INTA cycles on the PCI bus, but still allow 8259 register access and poll-mode functions 4-3 Subtractive Decoding Sample Point 00 slow sample point 01 typical 10 fast sample point 11 reserved 2 PCI Posted Write Buffer Enable 1 ISA Master Line Buffer Configuration =0 single-transaction mode =1 eight-byte mode for ISA bus master transfers 0 DMA Line Buffer Configuration =0 single-transaction mode =1 eight-byte mode SeeAlso: #0642,#3332 Bitfields for Intel 82378/82379 PCI Arbiter Control: Bit(s) Description (Table 3332) 7-5 reserveed (0) 4-3 Master Retry Timer 00 disabled (retries never masked) 01 retries unmasked after 16 PCICLKs 10 retries unmasked after 32 PCICLKs 11 retries unmasked after 64 PCICLKs 2 Bus Park =1 park CPUREQ# on PCI bus when 82378 detects PCI bus idle 1 Bus Lock =0 resource lock =1 Bus lock 0 Guaranteed Access Time =1 ISA bus masters are guaranteed 2.5 microsecond CHRDY time-out SeeAlso: #0642,#3331 Bitfields for Intel 82378/82379 PCI Arbiter Priority Control: Bit(s) Description (Table 3333) 7 bank 3 rotate control 6 bank 2 rotate control 5 bank 1 rotate control 4 bank 0 rotate control 3 bank 2 fixed priority mode select B 2 bank 2 fixed priority mode select A 1 bank 1 fixed priority mode select 0 bank 0 fixed priority mode select Note: if both 'rotate' and 'fixed' bits are set for a given bank, that bank will be in rotating-priority mode SeeAlso: #0642,#3332 Bitfields for Intel 82378/82379 MEMCS# Control Register: Bit(s) Description (Table 3334) 7-5 reserved (0) 4 MEMCS# Master Enable 3 write enable for 0F0000h-0FFFFFh 2 read enable for 0F0000h-0FFFFFh 1 write enable for 080000h-09FFFFh 0 read enable for 080000h-09FFFFh SeeAlso: #0642 Bitfields for Intel 82378/82379 ISA Address Decoder Control Register: Bit(s) Description (Table 3335) 7-4 ISA memory cycle forwarding to PCI 0000-1111 = 1M-16M top of ISA memory; any accesses above programmed limit are forwarded to PCI bus 3-0 ISA/DMA memory cycle to PCI bus enables bit 3: 896K-960K (E000h-EFFFh) bit 2: 640K-768K (A000h-BFFFh) bit 1: 512K-640K (8000h-9FFFh) bit 0: 0K-512K (0000h-7FFFh) SeeAlso: #0642,#3336 Bitfields for Intel 82378/82379 ISA Address Decoder ROM Block Enable: Bit(s) Description (Table 3336) 7 enable 880K-896K (EC00h-EFFFh) 6 enable 864K-880K (E800h-EBFFh) 5 enable 848K-864K (E400h-E7FFh) 4 enable 832K-848K (E000h-E3FFh) 3 enable 816K-832K (DC00h-DFFFh) 2 enabel 800K-816K (D800h-DBFFh) 1 enable 784K-800K (D400h-D7FFh) 0 enable 768K-784K (D000h-D3FFh) Note: ISA accesses within any enabled ranges are forwarded to the PCI bus SeeAlso: #0642,#3335 Bitfields for Intel 82378/82379 ISA Clock Divisor Register: Bit(s) Description (Table 3337) 7 reserved (0) 6 enable positive decode of upper 64K BIOS at 000F0000h-000FFFFFh, FFEF0000h-FFEFFFFFh, and FFFF0000h-FFFFFFFFh 5 coprocessor error enable =1 FERR# is driven onto IRQ13 4 IRQ12/Mouse Function Enable =0 standard IRQ12 =1 mouse 3 RSTDRV enable =1 assert RSTDRV until this bit cleared (for use in changing ISA bus speed) 2-0 PCICLK-to-ISA SYSCLK divisor 000 4 001 3 other reserved SeeAlso: #0642,#3335 Bitfields for Intel 82378/82379 Utility Bus Chip Select A Register: Bit(s) Description (Table 3338) 7 extended BIOS enable (decode accesses to FFF80000h-FFFDFFFFh) 6 lower BIOS enable (decode accesses to E0000h-EFFFFh, FFEE0000h-FFEEFFFFh, and FFFE0000h-FFFEFFFFh) 5 (82378ZB) floppy disk primary/secondary address select =1 use secondary address range 4 (82378ZB) IDE Decode enable 3,2 floppy disk address locations enable 1 keyboard controller address location enable enables I/O addresses 60h,62h,64h,66h (82378ZB) or 60h/64h (82379AB) 0 RTC address location enabled =1 enable decode of I/O ports 70h-77h SeeAlso: #0642,#0649,#3339 Bitfields for Intel 82378ZB/82379 Utility Bus Chip Select B Register: Bit(s) Description (Table 3339) 7 configuration RAM decode enable =1 permit write accesses to I/O port 0C00h and r/w to ports 08xxh 6 enable PORT 0092h 5-4 parallel port enable 00 LPT1 (ports 03BCh-03BFh) 01 LPT2 (ports 0378h-037Fh) 10 LPT3 (ports 0278h-027Fh) 11 disabled 3-2 serial port B enable 00 COM1 (03F8h-03FFh) 01 COM2 (02F8h-02FFh) 10 reserved 11 port B disabled 1-0 serial port A enable 00 COM1 (03F8h-03FFh) 01 COM2 (02F8h-02FFh) 10 reserved 11 port A disabled Note: if both serial ports are set to the same address, port B is disabled SeeAlso: #0642,#3338,PORT 0092h Bitfields for Intel 82378/82379 MEMCS# Attribute Register 1/2/3: Bit(s) Description (Table 3340) 7 write-enable xC000h-xFFFFh expansion ROM 6 read-enable xC000h-xFFFFh expansion ROM 5 write-enable x8000h-xBFFFh expansion ROM 4 read-enable x8000h-xBFFFh expansion ROM 3 write-enable x4000h-x7FFFh expansion ROM 2 read-enable x4000h-x7FFFh expansion ROM 1 write-enable x0000h-x3FFFh expansion ROM 0 read-enable x0000h-x3FFFh expansion ROM Note: x = C/D/E depending on the attribute register SeeAlso: #0642 Bitfields for Intel 82378ZB Scatter Gather Relocation Base Address: Bit(s) Description (Table 3341) (no details in Intel documentation) SeeAlso: #0642,#3340,#3342,PORT 040Ah"82378ZB" Bitfields for Intel 82378/82379 PCI IRQ Route Control Register: Bit(s) Description (Table 3342) 7 disable IRQ routing 6-4 reserved (0) 3-0 ISA IRQ number to which to route the PCI IRQ Note: IRQs 0-2, 8, and 13 are reserved SeeAlso: #0642,#3410 Bitfields for Intel 82379AB PIC/APIC Configuration Control Register: Bit(s) Description (Table 3343) 7-2 reserved 1 SMI Routing Control =1 SMI via APIC =0 SMI via SMI# signal 0 INT Routing Control =1 INT disabled (requires that APIC be enabled) =0 INT enabled SeeAlso: #0642,#3344 Bitfields for Intel 82379AB/82371 APIC Base Address Relocation: Bit(s) Description (Table 3344) 7 reserved 6 (82379AB) reserved 6 (82371) A12 mask =1 ignore address bit 12 in APIC address 5-0 bits 15-10 of APIC memory address (ORed with FEC00000h to form base address) SeeAlso: #0642,#3410,#3343,MEM FEC00000h Bitfields for Intel 82378/82379 SMI Control Register: Bit(s) Description (Table 3345) 7 reserved 6 (82378) reserved (82379) require Stop Grant bus cycle before asserting STPCLK# 5-4 reserved 3 Fast-Off Timer freeze 2 STPCLK# scaling enable =1 enable Clock Throttle bytes in PCI configuration space 1 STPCLK# signal enable =1 assert STPCLK# on read from PORT 00B2h 0 SMI# Gate =1 enable SMI# on system management interrupt Notes: bit 1 is cleared either with an explicit write of 0 here, or by any write to PORT 00B2h bit 0 does not affect the recording of SMI events, so a pending SMI will cause an immediate SMI# when the bit is set SeeAlso: #0642,#3346,#3347,#3421,PORT 00B2h Bitfields for Intel 82371/82378/82379 SMI Enable Register: Bit(s) Description (Table 3346) 15-9 reserved 8 (82371SB only) Legacy USB SMI enable 7 APMC Write SMI enable =1 generate SMI on write to PORT 00B2h 6 EXTSMI# SMI enable 5 Fast-Off Timer SMI enable 4 IRQ12 (PS/2 mouse) SMI enable 3 IRQ8 (RTC alarm) SMI enable 2 IRQ4 (COM1/COM3) SMI enable 1 IRQ3 (COM2/COM4) SMI enable 0 IRQ1 (keyboard) SMI enable SeeAlso: #0642,#3345,#3347,#3410,PORT 00B2h Bitfields for Intel 82371/82378/82379 System Event Enable Register: Bit(s) Description (Table 3347) 31 Fast-Off SMI enable (system and break events) 30 (82379 only) Fast-Off Interrupt Enable (break events only) 30 (82371 only) INTR enable (break events only) 29 Fast-Off NMI enable (system and break events) 28 (82371SB only) Fast-Off APIC enable (break events only) 27 (82379 only) Fast-Off COM enable (system events only) 26 (82379 only) Fast-Off LPT enable (system events only) 25 (82379 only) Fast-Off Drive enable (system events only) 24 (82379 only) Fast-Off DMA enable (system events only) 23-16 reserved 15-3 Fast-Off IRQ (15-3) enable (system and break events) 2 reserved 1-0 Fast-Off IRQ (1-0) enable (system and break events) Note: any enabled system event restarts the Fast-Off Timer, thus preventing a Fast-Off powerdown; any enabled break event awakens the system from powerdown SeeAlso: #0642,#3345,#3346,#3348,#3410 Bitfields for Intel 82371/82378/82379 SMI Request Register: Bit(s) Description (Table 3348) 15-9 reserved 8 (82371SB only) Legacy USB SMI status 7 APM SMI Status (write to PORT 00B2h triggered SMI) 6 EXTSMI# SMI Status (EXTSMI# line triggered SMI) 5 Fast-Off Timer expired 4 IRQ12 triggered SMI 3 IRQ8 triggered SMI 2 IRQ4 triggered SMI 1 IRQ3 triggered SMI 0 IRQ1 triggered SMI Note: software must explicitly reset the appropriate bits SeeAlso: #0642,#3347,#3410 Format of PCI Configuration data for Intel 82425EX PSC: Offset Size Description (Table 0643) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 0486h) 40h BYTE PCI control register (see #0644) 41h 3 BYTEs ??? 44h BYTE host device control register (see #0645) 45h 3 BYTEs ??? 48h WORD PCI local-bus IDE control register (see #0646) 4Ah 2 BYTEs ??? 4Ch BYTE ISA I/O recovery timer register (see #0647) 4Dh BYTE part revision register (see #0648) 4Eh BYTE X-bus Chip Select A register (see #0649) 4Fh BYTE X-bus Chip Select B register??? 50h BYTE host select register 51h BYTE deturbo frequency control register when deturbo mode is selected (see PORT 0CF9h), the chipset places a hold on the memory bus for a fraction of the time inversely proportional to the value in this register (i.e. C0h = 1/4, 80h = 1/2, 40h = 3/4, 20h = 7/8, etc.) 52h WORD secondary (L2) cache control register 54h 2 BYTEs ??? 56h WORD DRAM control register 58h BYTE ??? 59h 7 BYTEs Programmable Attribute Map (PAM) registers 0-6 (see also #3401) 60h 5 BYTEs DRAM row boundary registers 0-4 each register N indicates amount of memory in rows 0-N (each row is 64 bits wide); the fifth row of memory (if implemented) must contain either 8M or 16M, depending on system configuration boundary register 4 (offset 64h) contains the total system memory, which may not exceed 128M 65h BYTE ??? 66h BYTE PIRQ route control register 0 67h BYTE PIRQ route control register 1 68h BYTE DRAM memory hole register 69h BYTE top of memory 6Ah 6 BYTEs ??? 70h BYTE SMRAM control register 71h 47 BYTEs unused??? A0h BYTE SMI control register A1h BYTE ??? A2h WORD SMI enable register A4h DWORD system event enable A8h BYTE fast off timer register A9h BYTE ??? AAh WORD SMI request register ACh BYTE clock throttle STPCLK# low timer ADh BYTE unused??? AEh BYTE clock throttle STPCLK# high timer AFh BYTE ??? B0h 80 BYTEs unused??? SeeAlso: #0628,#0641,#0640,#3392,#3410 Bitfields for Intel 82425EX PCI control register: Bit(s) Description (Table 0644) 0 CPU-to-PCI byte merging 1 CPU-to-PCI bursting enable 2 PCI posted-write buffer enable 4-3 subtractive decode sampling point 00 slow 01 typical 10 fast 11 reserved 5 DRAM parity error enable 6 target abort error enable 7 reserved SeeAlso: #0643,#0645,#0646,#0647 Bitfields for Intel 82425EX host device control register: Bit(s) Description (Table 0645) 0 HRDY# maximum signal sampling point 0 slow timing 1 fast timing 1 HDEV# signal sampling point 0 slow timing 1 fast timing 2 host device present 7-3 reserved SeeAlso: #0643,#0644 Bitfields for Intel 82425EX local-bus IDE control register: Bit(s) Description (Table 0646) 1-0 primary/secondary PCI IDE enable 00 IDE disabled 01 primary (ports 01F0h-01F7h,03F6,03F7h) 10 secondary (ports 0170h-017Fh,0376h,0377h) 11 reserved 3-2 fast timing bank drive select 1 bit 2 = drive 0 enabled bit 3 = drive 1 enabled 5-4 IORDY sample point Enable Drive Select bit 4 = drive 0 enabled bit 5 = drive 1 enabled 7-6 reserved 9-8 IORDY sample point 00 6 clocks 01 5 clocks 10 4 clocks 11 3 clocks 12-10 recover time (000 = 8 PCI clocks, 001 = 7, ..., 101 = 3, 110/111 = 3) 15-13 reserved SeeAlso: #0643,#0644 Bitfields for Intel chipset ISA I/O recovery timer register: Bit(s) Description (Table 0647) 1-0 16-bit I/O recovery time 00 = 4 SYSCLKs 01-11 = 1-3 SYSCLKs 2 16-bit I/O recovery enable 5-3 8-bit I/O recovery time 000 = 8 SYSCLKs 001-110 = 1-7 SYSCLKs 6 8-bit I/O recovery enable 7 (82425EX/82371) DMA reserved page register aliasing disable =0 ports 0090h-009Fh alias ports 0080h-008Fh =1 ports 0090h-009Fh forwarded to ISA bus SeeAlso: #0642,#0643,#0644,#3410 Bitfields for Intel 82425EX part revision register: Bit(s) Description (Table 0648) 7-5 fabrication house identifier (read-only) 4 E0000h-EFFFFh ISA-to-main-memory forwarding enabled 3-0 revision ID (read-only) SeeAlso: #0643,#0649 Bitfields for Intel 82425EX/82371 X-bus Chip Select A register: Bit(s) Description (Table 0649) 7 extended BIOS enabled at FFF80000h-FFFDFFFFh 6 lower (E000h) BIOS enabled 5 trigger IRQ13 on FERR# 4 IRQ12 mouse function enabled 3 reserved (0) 2 BIOS memory write protect 1 keyboard controller addresses (60h,62h,64h,66h) enabled 0 RTC addresses (70h-77h) enabled SeeAlso: #0643,#3410,#0648 Format of PCI Configuration Data for Intel 82439HX: Offset Size Description (Table 3407) 00h 64 BYTEs header (see #0628) (vender ID 8086h, device ID 1250h) (revision ID 00h = A0 stepping) 40h 16 BYTEs reserved 50h BYTE PCI Control (see #3394) 51h BYTE reserved 52h BYTE cache control (see #3395) 53h 3 BYTEs reserved 56h BYTE DRAM extended control (see #3398) 57h BYTE DRAM control (see #3399) 58h BYTE DRAM timing (see #3400) 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 8 BYTEs DRAM Row Boundary registers 0-7 each register N indicates cumulative amount of memory in rows 0-N (each 64 bits wide), in 4M units 68h BYTE DRAM Row Type (see #3402) bits 0-7 indicate whether each row 0-7 contains EDO DRAM instead of page-mode DRAM 69h BYTE ??? 6Ah 8 BYTEs reserved 72h BYTE System Management RAM control (see #3404) 73h 29 BYTEs reserved 90h BYTE Error Command (see #3408) 91h BYTE Error Status (see #3409) (read-only) 92h BYTE Error Syndrome (read-only) latest non-zero ECC error syndrome 93h 109 BYTEs reserved SeeAlso: #3392,#3424 Format of PCI Configuration Data for Intel 82437MX: Offset Size Description (Table 3435) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 1235h) 40h 16 BYTEs reserved 50h BYTE PCI Control (see #3436) 51h BYTE reserved 52h BYTE cache control (see #3395) 53h 4 BYTEs reserved 57h BYTE DRAM Control (see #3399) 58h BYTE DRAM timing (see #3400) 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 4 BYTEs DRAM Row Boundary Registers 0-3 each register N indicates cumulative amount of memory in rows 0-N, in 4M units (each row is 64 bits wide) 64h 4 BYTEs reserved 68h BYTE DRAM Row Type (see #3437) 69h 9 BYTEs reserved 72h BYTE System Management RAM control (see #3404) 73h 141 BYTEs reserved SeeAlso: #3392,#3438 Format of PCI Configuration Data for Intel 82437FX: Offset Size Description (Table 3438) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 0122h) (see #3308) 40h 16 BYTEs reserved 50h BYTE PCI Control (see #3436) 51h BYTE reserved 52h BYTE cache control (see #3395) 53h 4 BYTEs reserved 57h BYTE DRAM Control (see #3399) 58h BYTE DRAM timing (see #3400) 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 5 BYTEs DRAM Row Boundary Registers 0-4 each register N indicates cumulative amount of memory in rows 0-N, in 4M units (each row is 64 bits wide) 65h 3 BYTEs reserved 68h BYTE DRAM Row Type (see #3437) 69h 9 BYTEs reserved 72h BYTE System Management RAM control (see #3404) 73h 141 BYTEs reserved SeeAlso: #3435,#3392 Format of PCI Configuration Data for Intel 82437VX: Offset Size Description (Table 3392) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 7030h) (revision ID 00h = A0 stepping) 40h 15 BYTEs reserved 4Fh BYTE arbitration control (see #3393) 50h BYTE PCI Control (see #3394) 51h BYTE reserved 52h BYTE cache control (see #3395) 53h BYTE cache control extensions (see #3396) 54h WORD SDRAM control (see #3397) 55h BYTE reserved 56h BYTE DRAM extended control (see #3398) 57h BYTE DRAM control (see #3399) 58h BYTE DRAM timing (see #3400) 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 5 BYTEs DRAM Row Boundary registers 0-4 each register N indicates amount of memory in rows 0-N in 4M units (each row is 64 bits wide); the fifth row of memory (if implemented) must contain either 8M or 16M, depending on system configuration boundary register 4 (offset 64h) contains the total system memory, which may not exceed 128M 65h 2 BYTEs reserved 67h BYTE DRAM Row Type (high) defines memory type in DRAM row 4 in bits 4,0 (see #3402) 68h BYTE DRAM Row Type (low) (see #3402) 69h BYTE PCI TRDY timer (see #3403) 6Ah 6 BYTEs reserved 70h BYTE Multi-Transaction Timer number of PCLKs guaranteed to the current agent before the 82437 will grant the bus to another PCI agent on request 71h BYTE reserved 72h BYTE System Management RAM control (see #3404) 73h BYTE shared memory buffer control (see #3405) 74h BYTE shared memory buffer start address, in 0.5MB units end address is top-of-memory at offset 64h or start of an enabled PCI memory hole when top-of-memory is 16M 76h 2 BYTEs reserved 78h BYTE graphics controller latency timers (see #3406) 79h 135 BYTEs reserved SeeAlso: #3308,#0641,#0643,#3407,#3435 Bitfields for Intel 82437VX arbitration control: Bit(s) Description (Table 3393) 7 extended CPU-to-PIIX PHLDA# signalling enabled 6-4 reserved 3 CPU priority enable =1 CPU gets PCI bus after two PCI slots =0 CPU gets PCI bus after three PCI slots 2-0 reserved SeeAlso: #3392,#3394 Bitfields for Intel 82437VX/82439HX PCI Control register: Bit(s) Description (Table 3394) 7-4 reserved (82437VX) 7 DRAM ECC/Parity Select (82439HX) =1 ECC =0 parity 6 ECC TEST enable (82439HX) 5 shutdown to port 92h (82439HX) =1 send 01h to PORT 0092h on Shutdown special cycle on host bus 4 dual-processor NA# enable (82439HX) 3 PCI Concurrency Enable =1 CPU can access DRAM/L2 during non-PIIX PCI master cycles =0 CPU kept off PCI bus during all PCI bus-master cycles 2 SERR# Output Type (82439HX only) =1 SERR# is actively driven high when negated =0 SERR# is PCI-compatible open-drain output 1 reserved 0 Global TXC Enable (82439HX only) =1 enable new 82439HX features SeeAlso: #3392,#3407,#3395,#3436 Bitfields for Intel 82437FX/82437MX PCI Control register: Bit(s) Description (Table 3436) 7-5 CPU inactivity timer (in PCI Clocks less 1) 4 reserved 3 enable PCI Peer Concurrency =1 CPU can access DRAM/L2 during non-PIIX PCI master cycles =0 CPU kept off PCI bus during all PCI bus-master cycles 2 disable PCI Bursting 1 disable PCI Streaming 0 disable Bus Concurrency SeeAlso: #3435,#3438,#3394 Bitfields for Intel 82437/82439HX cache control register: Bit(s) Description (Table 3395) 7-6 secondary cache size 00 none 01 256K 10 512K 11 reserved 5-4 L2 RAM type 00 pipelined burst SRAM/DRAM 01 reserved 10 asynchronous SRAM (82437FX/MX/VX only) 11 two banks of pipelined burst cache 3 NA disable =1 never assert NA# pin 2 reserved (82437FX/82437MX/82437VX) 2 Extended Cacheability Enable (82439HX) =1 cache up to 512M =0 cache only first 64M 1 Secondary Cache Force Miss or Invalidate =1 force all memory accesses to bypass L2 cache 0 First Level Cache Enable =1 all memory accesses made non-cacheable by CPU L1 cache SeeAlso: #3392,#3407,#3394,#3396,#3397,#3435 Bitfields for Intel 82437VX cache control extensions register: Bit(s) Description (Table 3396) 7-6 reserved 5 DRAM cache detected (read-only) 4-0 DRAM cache refresh timer number of HCLKs 82437VX remains idle during DRAM cache refresh SeeAlso: #3392,#3395 Bitfields for Intel 82437VX SDRAM control register: Bit(s) Description (Table 3397) 15-9 reserved 8-6 Special SDRAM Mode Select 000 normal mode (default) 001 enable NOP command 010 enable All Banks Precharge command 011 enable Mode Register Command 100 enable CBR Cycle 101 reserved 11x reserved 5 reserved 4 CAS# latency =1 latency is 2 for all SDRAM cycles =0 latency is 3 3 RAS# precharge and refresh timing =0 slower =1 faster 2-0 reserved SeeAlso: #3392,#3395 Bitfields for Intel 82437VX/82439HX DRAM extended control register: Bit(s) Description (Table 3398) 7 reserved 6 (82437VX) refresh RAS# assertion length (0=4 clocks, 1=5 clocks) 5 (82437VX) Fast EDO Path Select 4 Speculative Leadoff Disable 3 (82439HX) Turn-Around Insertion Enable =1 insert one extra clock of turnaround time after asserting MWE# 2-1 Memory Address Drive Strength 82437VX: 82439HX: 00 reserved 00 8mA 01 10mA (default) 01 8mA/12mA (MAA/MWE#) 10 16mA 10 12mA/8mA (MAA/MWE#) 11 reserved 11 12mA 0 (82437VX) DRAM Symmetry Detect Mode (used to force some memory address lines to fixed value for detecting DRAM symmetry row-by-row) 0 (82439HX) 64MBit Mode Enable =1 enable support for 64M SIMMs SeeAlso: #3392,#3407,#3399 Bitfields for Intel 82437/82439HX DRAM control register: Bit(s) Description (Table 3399) 7-6 DRAM Hole Enable 00 none 01 512K-640K 10 15M-16M (82437FX/MX/VX only) 11 14M-16M (82437VX only) 5 reserved 4 (82437MX only) refresh type during Suspend =1 self-refreshing DRAMs in system =0 CAS-before-RAS refresh 3 EDO Detect Mode enable (used to detect whether memory is EDO bank-by-bank) 2-0 DRAM refresh rate FX/VX/HX MX 000 disabled 15.6 us 001 50 MHz 31.2 us 010 60 MHz 62.4 us 011 66 MHz 125 us 100 reserved 250 us 1xx reserved reserved SeeAlso: #3392,#3407,#3398,#3435 Bitfields for Intel 82437FX/82437MX/82437VX/82439HX DRAM timing register: Bit(s) Description (Table 3400) 7 (82437FX) reserved 7 (82437MX) MA[11:2] buffer strength =0 8mA =1 12mA 7 (82437VX) MA-to-RAS# Delay =1 one clock =0 two clocks 7 (82439HX) Turbo Read Leadoff =1 bypass first register in DRAM data pipeline, saving one clock (may only be set in a cacheless configuration) 6-5 DRAM Read Burst Timing 00 x444 (EDO and Standard Page Mode) 01 x333 (EDO), x444 (SPM) 10 x222 (EDO), x333 (SPM) 11 x322 (EDO), x333 (SPM) (82437VX only) 11 reserved (other) 4-3 DRAM Write Burst Timing 00 x444 01 x333 10 x222 11 reserved 2 RAS-to-CAS Delay =1 two clocks =0 three clocks 1-0 DRAM Leadoff Timing 82437VX Read Leadoff Write Leadoff RAS# Precharge 00 11 7 3 01 10 6 3 10 11 7 4 11 10 6 4 82437FX/MX Read Lead Write Leadoff RAS# Precharge 00 8 6 3 01 7 5 3 10 8 6 4 11 7 5 4 82437VX Read Leadoff Write Leadoff RAS# Precharge 00 7 6 3 01 6 5 3 10 7 6 4 11 6 5 4 SeeAlso: #3392,#3399,#3435,#3438 Bitfields for Intel 82437/82439HX Programmable Attribute Register: Bit(s) Description (Table 3401) 7 reserved 6 cache enable (region 1) 5 write enable (region 1) 4 read enable (region 1) 3 reserved 2 cache enable (region 0) 1 write enable (region 0) 0 read enable (region 0) Notes: each programmable attribute map register controls two memory regions at the top of the first megabyte of memory for the Intel 82441FX, bits 6 and 2 are reserved, as cacheability is set using the Pentium Pro's MTRR registers (see MSR 000000FEh) Intel 82437FX/82437MX/82437VX/82439HX/82441FX PAM registers/regions: PAM0 low: reserved PAM0 hi: segment F000-FFFF PAM1 low: segment C000-C3FF PAM1 hi: segment C400-C7FF PAM2 low: segment C800-CBFF PAM2 hi: segment CC00-CFFF PAM3 low: segment D000-D3FF PAM3 hi: segment D400-D7FF PAM4 low: segment D800-DBFF PAM4 hi: segment DC00-DFFF PAM5 low: segment E000-E3FF PAM5 hi: segment E400-E7FF PAM6 low: segment E800-EBFF PAM6 hi: segment EC00-EFFF SeeAlso: #3392,#3407,#3424,#3435,#3438 Bitfields for Intel 82437VX DRAM Row Type register: Bit(s) Description (Table 3402) 7,3 row 3 type 6,2 row 2 type 5,1 row 1 type 4,0 row 0 type 00 SPM DRAM 01 EDO DRAM 10 SDRAM 11 reserved SeeAlso: #3392,#3401 Bitfields for Intel 82437FX/82437MX DRAM Row Type register: Bit(s) Description (Table 3437) 7-4 reserved 3-0 DRAM Row N is EDO instead of page-mode DRAM SeeAlso: #3435,#3438 Bitfields for Intel 82437VX PCI TRDY timer: Bit(s) Description (Table 3403) 7-3 reserved 2-0 TRDY timeout value 000 2 PCICLKs 001 4 PCICLKs 010 6 PCICLKs 011 8 PCICLKs 1xx reserved SeeAlso: #3392,#3404 Bitfields for Intel 82437/82439HX System Management RAM control register: Bit(s) Description (Table 3404) 7 reserved 6 SMM Space Open =1 make SMM DRAM visible even when not in SMM if bit 4 =0 5 SMM Space Closed =1 no data references permitted to SMM DRAM even in SMM 4 SMM Space Locked =1 force bits 4 and 6 to become read-only; and clear bit 6 3 SMRAM Enable =1 128K DRAM are accessible for use at A000 while in SMM 2-0 SMM Space Base Segment 010 segment A000-BFFF 100 segment C000-CFFF (82437MX only) other reserved Note: bits 5 and 6 must never both be set at the same time SeeAlso: #3392,#3407,#3405,#3435,#3438 Bitfields for Intel 82437VX Shared Memory Buffer control register: Bit(s) Description (Table 3405) 7-2 reserved 1 enable shared memory buffer 0 redirect shared memory buffer access =0 treat SMB area as a hole in system DRAM SeeAlso: #3392,#3404,#3406 Bitfields for Intel 82437VX Graphics Controller Latency Timer: Bit(s) Description (Table 3406) 7-6 reserved 5-3 GC latency for PCI reads (in 4 HCLK multiples) (default=100) 2-0 GC latency for CPU and PCI writes (in 4 HCLK multiples) (default=011) SeeAlso: #3392,#3405 Bitfields for Intel 82439HX Error Command register: Bit(s) Description (Table 3408) 7 SERR# duration =0 one PCI clock =1 until error flags are cleared 6-3 reserved 2 force bad parity on multiple-bit uncorrectable error 1 assert SERR# on multiple-bit uncorrectable error 0 assert SERR# on single-bit correctable error SeeAlso: #3407,#3409 Bitfields for Intel 82439HX Error Status register: Bit(s) Description (Table 3409) 7-5 DRAM row associated with multi-bit error 4 multi-bit uncorrectable error occurred (write 1 bit to clear) 3-1 DRAM row associated with single-bit correctable error 0 single-bit correctable error occurred (write 1 bit to clear) SeeAlso: #3407,#3408 Format of PCI Configuration for Intel 82371FB/82371SB Function 0 (ISA Bridge): Offset Size Description (Table 3410) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 122Eh/7000h) (revision ID 00h = 82371SB step A-1) (revision ID 01h = 82371SB step B-0) 40h 12 BYTEs reserved 4Ch BYTE ISA I/O Controller Recovery Timer (see #0647) 4Dh BYTE reserved 4Eh BYTE X-Bus Chip Select Enable (see #0649) 4Fh BYTE (82371SB) X-Bus Chip Select Enable High bit 0: I/O APIC enabled 4Fh BYTE (82371FB) reserved 50h 16 BYTEs reserved 60h 4 BYTEs PCI IRQ Route Control (see #3342) 64h 5 BYTEs reserved 69h BYTE top of memory (see #3415) 6Ah WORD miscellaneous status (see #3416) 6Ch 4 BYTEs reserved 70h BYTE motherboard IRQ Route Control 0 (see #3417) 71h BYTE (82371FB) motherboard IRQ Route Control 1 (see #3417) 72h 4 BYTEs reserved 76h 2 BYTEs motherboard DMA control (see #3418) 78h WORD programmable chip select control (see #3419) 7Ah 6 BYTEs reserved 80h BYTE (82371SB) APIC Base Address Relocation (see #3344) 81h BYTE reserved 82h BYTE (82371SB) Deterministic Latency Control (see #3420) 83h 29 BYTEs reserved A0h BYTE SMI Control (see #3421) A1h BYTE reserved A2h WORD SMI Enable (see #3346) A4h DWORD System Event Enable (SEE) (see #3347) A8h BYTE Fast-Off Timer (in minutes, PCICLKs, or milliseconds) value is count less one; timer must be stopped before changing its value A9h BYTE reserved AAh WORD SMI Request (see #3348) ACh BYTE Clock Scale STPCLK# Low Timer STPCLK# stays low for 1+1056*(value+1) PCICLKs ADh BYTE reserved AEh BYTE Clock Scale STPCLK# High Timer STPCLK# stays high for 1+1056*(value+1) PCICLKs AFh 81 BYTEs reserved SeeAlso: #3411,#3414,#0642,#0643,#3392,#3407 Format of PCI Configuration for Intel 82371FB/82371SB Function 1 (IDE): Offset Size Description (Table 3411) 00h 64 BYTEs header (see #0628) (vender ID 8086h, device ID 1230h/7010h) 20h DWORD Bus Master Interface Base Address (see PORT xxxxh"Intel 82371SB") 40h WORD IDE timing modes, primary channel (see #3412) 42h WORD IDE timing modes, secondary channel (see #3412) 44h BYTE (82371SB) slave IDE timing register (see #3413) 45h 187 BYTEs reserved SeeAlso: #3410,#3414,PORT xxxxh"Intel 82371SB" Format of PCI Configuration for Intel 82371SB Function 2 (USB): Offset Size Description (Table 3414) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 7020h) 20h DWORD I/O space base address (see PORT xxxxh"Intel 82371SB") 40h 32 BYTEs reserved 60h BYTE Serial Bus Specification release number 00h pre-release 1.0 10h Release 1.0 61h 9 BYTEs reserved 6Ah WORD miscellaneous status (see #3422) 6Ch 84 BYTEs reserved C0h WORD legacy support (see #3423) C2h 62 BYTEs reserved SeeAlso: #3410,#3411,PORT xxxxh"Intel 82371SB" Bitfields for Intel 82371FB/82371SB top of memory register: Bit(s) Description (Table 3415) 7-4 top of ISA memory (in megabytes, less 1; i.e. 0001 = 2M) 3 ISA/DMA lower BIOS forwarding enable 2 (82371SB) enable A000/B000 segment forwarding to PCI bus 1 enable forwarding ISA/DMA 512K-640K region to PCI bus 0 reserved SeeAlso: #3410,#3416 Bitfields for Intel 82371FB/82371SB miscellaneous status register: Bit(s) Description (Table 3416) 15 (82371SB) enable SERR# on delayed transaction write 1 to clear this bit 14-8 reserved 7 (82371SB) NB Retry Enable 6 (82371SB) EXTSMI# Mode Enable allow special SERR# protocol between PCI bridge and 82371 5 reserved 4 (82371SB) enable USB disable USB's master enable and I/O decode enable prior to clearing this bit! 3 reserved 2 (82371FB) PCI Header Type Bit enable =1 report multifunction device in PCI configuration header 1 (82371FB) internal ISA DMA/external DMA Mode status (read-only) =0 normal DMA operation 0 (82371FB) ISA Clock Divisor status (read-only) (82371SB) ISA Clock Divisor (read-write) =1 SYSCLK clock divisor is 3 =0 SYSCLK clock divisor is 4 SeeAlso: #3410,#3415 Bitfields for Intel 82371FB/82371SB motherboard IRQ Route Control: Bit(s) Description (Table 3417) 7 disable IRQ routing 6 enable MIRQx/IRQx sharing 5 (82371SB) enable IRQ0 output 4 reserved (0) 3-0 ISA IRQ number to which to route the PCI IRQ Note: IRQs 0-2, 8, and 13 are reserved SeeAlso: #3410,#3415,#3418 Bitfields for Intel 82371FB/82371SB motherboard DMA control: Bit(s) Description (Table 3418) 7 type F and DMA buffer enable 6-4 reserved 3 (82371FB) disable motherboadr DMA channel 2-0 DMA channel number (82371FB) Type F and Motherboard DMA (82371SB) Type F DMA SeeAlso: #3410,#3417 Bitfields for Intel 82371FB/83271SB programmable chip select control register: Bit(s) Description (Table 3419) 15-2 I/O address which will assert PCS# signal 1-0 PCS address mask 00 four bytes 01 eight contiguous bytes 10 disabled 11 sixteen contiguous bytes SeeAlso: #3410,#3418,#3420 Bitfields for Intel 82371SB Deterministic Latency Control register: Bit(s) Description (Table 3420) 7-4 reserved 3 enable SERR# on delayed transaction timeout 2 enable USB passive release 1 enable passive release 0 enable delayed transactions SeeAlso: #3410,#3419 Bitfields for Intel 82371FB/82371SB SMI Control Register: Bit(s) Description (Table 3421) 7-5 reserved 4-3 Fast-Off Timer freeze/granularity selection 00 one minute granularity (assuming 33 MHz PCICLK) 01 disabled (frozen) 10 one PCICLK 11 one millisecond 2 STPCLK# scaling enable =1 enable Clock Scale bytes in PCI configuration space 1 STPCLK# signal enable =1 assert STPCLK# on read from PORT 00B2h 0 SMI# Gate =1 enable SMI# on system management interrupt Notes: bit 1 is cleared either with an explicit write of 0 here, or by any write to PORT 00B2h bit 0 does not affect the recording of SMI events, so a pending SMI will cause an immediate SMI# when the bit is set SeeAlso: #3410,#3345 Bitfields for Intel 82371FB/82371SB IDE timing modes: Bit(s) Description (Table 3412) 15 IDE decode enable 14 (82371SB) slave IDE timing register enable (see #3413) 13-12 IORDY# sample point 00 five clocks after DIOx# assertion 01 four clocks 10 three clocks 11 two clocks 11-10 reserved 9-8 recovery time between IORDY# sample point and DIOx# 00 four clocks 01 three clocks 10 two clocks 11 one clock 7 DMA timing enable only, drive 1 6 prefetch and posting enable, drive 1 5 IORDY# sample point enable drive select 1 4 fast timing bank drive select 1 3 DMA timing enable only, drive 0 2 prefetch and posting enable, drive 0 1 IORDY# sample point enable drive select 0 0 fast timing bank drive select 0 SeeAlso: #3411 Bitfields for Intel 82371SB slave IDE timing register: Bit(s) Description (Table 3413) 7-6 secondary drive 1 IORDY# sample point 00 five clocks after DIOx# assertion 01 four clocks 10 three clocks 11 two clocks 5-4 secondary drive 1 recovery time 00 four clocks 01 three clocks 10 two clocks 11 one clock 3-2 primary drive 1 IORDY# sample point 1-0 primary drive 1 recovery time SeeAlso: #3412 Bitfields for Intel 82371SB miscellaneous status: Bit(s) Description (Table 3422) 15-1 reserved 0 USB clock selection =1 48 MHz =0 24 MHz SeeAlso: #3414,#3423 Bitfields for Intel 82371SB legacy support register: Bit(s) Description (Table 3423) 15 A20GATE pass-through sequence ended write 1 to clear this bit 14 reserved 13 USB PIRQ enabled 12 USR IRQ status (read-only) 11 trap caused by write to PORT 0064h write 1 to clear this bit 10 trap caused by read from PORT 0064h write 1 to clear this bit 9 trap caused by write to PORT 0060h write 1 to clear this bit 8 trap caused by read from PORT 0060h write 1 to clear this bit 7 enable SMI at end of A20GATE Pass-Through 6 A20GATE pass-through sequence in progress (read-only) 5 enable A20GATE pass-through sequence (write PORT 64h,D1h; write 60h,xxh; read 64h; write 64h,FFh) 4 enable trap/SMI on USB IRQ 3 enable trap/SMI on PORT 0064h write 2 enable trap/SMI on PORT 0064h read 1 enable trap/SMI on PORT 0060h write 0 enable trap/SMI on PORT 0060h read SeeAlso: #3414,#3422 Format of PCI Configuration Data for Intel 82441FX: Offset Size Description (Table 3424) 00h 64 BYTEs header (see #0628) (vendor ID 8086h, device ID 1237h) (see #3308) 40h 16 BYTEs reserved 50h WORD PMC Configuration (see #3425) 52h BYTE deturbo counter control when deturbo mode is selected (see PORT 0CF9h), the chipset places a hold on the memory bus for a fraction of the time inversely proportional to the value in this register (i.e. C0h = 1/4, 80h = 1/2, 40h = 3/4, 20h = 7/8, etc.) 53h BYTE DBX buffer control (see #3426) 54h BYTE auxiliary control (see #3427) 55h WORD DRAM Row Type (see #3428) 57h BYTE DRAM Control (see #3429) 58h BYTE DRAM Timing (see #3430) 59h 7 BYTEs Programmable Attribute Map registers 0-6 (see #3401) 60h 8 BYTEs DRAM Row Buondary registers 0-7 each register N indicates cumulative amount of memory in rows 0-N (each 64 bits wide), in 8M units 68h BYTE Fixed DRAM Hole Control 69h 7 BYTEs reserved 70h BYTE Multi-Transaction Timer number of PCLKs guaranteed to the current agent before the 82441 will grant the bus to another PCI agent on request 71h BYTE CPU Latency Timer (see #3431) 72h BYTE System Management RAM control (see #3404) 73h 29 BYTEs reserved 90h BYTE Error Command (see #3432) 91h BYTE Error Status (see #3433) 92h BYTE reserved 93h BYTE Turbo Reset Control (see #3434) 94h 108 BYTEs reserved SeeAlso: #3407,#3392 Bitfields for Intel 82441FX PMC Configuration Register: Bit(s) Description (Table 3425) 15 WSC Protocol Enable 14 Row Select/Extra Copy select (read-only) =1 pins on PMC configured as two additional row selects (6/7) =0 extra copy of two lowest memory address bits enabled 13-10 reserved 9-8 host frequence select 00 reserved 01 60 MHz 10 66 MHz 11 reserved 7 reserved 6 ECC/Parity TEST enable 5-4 DRAM Data Integrity Mode 00 no parity/ECC 01 parity generated and checked 10 ECC generated and checked, correction disabled 10 ECC generated and checked, correction enabled 3 reserved 2 In-Order Queue size (0=one, 1=four) 1-0 reserved SeeAlso: #3424,#3426 Bitfields for Intel 82441FX DBX buffer control register: Bit(s) Description (Table 3426) 7 enable delayed transactions 6 enable CPU-to-PCI IDE posting 5 enable USWC Write Post during I/O Bridge access 4 disable PCI Delayed Transaction timer 3 enable CPU-to-PCI Write Post 2 enable PCI-to-DRAM pipeline 1 enable PCI Burst Write Combining 0 enable Read-Around-Write SeeAlso: #3424,#3425 Bitfields for Intel 82441FX auxiliary control register: Bit(s) Description (Table 3427) 7 enable RAS precharge 6-2 reserved 1 Lower Memory Address Buffer Set A =0 8mA =1 12mA 0 reserved SeeAlso: #3424 Bitfields for Intel 82441FX DRAM Row Type register: Bit(s) Description (Table 3428) 15-14 row 7 DRAM type 13-12 row 6 DRAM type 11-10 row 5 DRAM type 9-8 row 4 DRAM type 7-6 row 3 DRAM type 5-4 row 2 DRAM type 3-2 row 1 DRAM type 1-0 row 0 DRAM type 00 fast page-mode DRAM 01 EDO DRAM 10 BEDO DRAM 11 empty row SeeAlso: #3424,#3429 Bitfields for Intel 82441FX DRAM Control register: Bit(s) Description (Table 3429) 7 reserved 6 enable DRAM Refresh Queue 5 enable DRAM EDO Auto-Detect Mode 4 DRAM Refresh Type =0 CAS before RAS =1 RAS only 3 reserved 2-0 DRAM refresh rate 000 disabled 001 normal (as set by PMCCFG register) 01x reserved 1xx reserved 111 fast refresh (every 32 host clocks) SeeAlso: #3424,#3428,#3430 Bitfields for Intel 82441FX DRAM Timing register: Bit(s) Description (Table 3430) 7 reserved 6 enable WCBR Mode 5-4 DRAM Read Burst Timing BEDO EDO FPM 00 x333 x444 x444 01 x222 x333 x444 10 x222 x222 x333 11 res. res. res. 3-2 DRAM Write Burst Timing (B)EDO FPM 00 x444 x444 01 x333 x444 10 x333 x333 11 x222 x333 1 RAS-to-CAS delay =1 one clock =0 zero clocks 0 insert one MA Wait State SeeAlso: #3424,#3429 Bitfields for Intel 82441FX CPU Latency Timer register: Bit(s) Description (Table 3431) 7-5 reserved 4-0 snoop stall count value SeeAlso: #3424 Bitfields for Intel 82441FX Error Command register: Bit(s) Description (Table 3432) 7-5 reserved 4 enable SERR# on receiving Target Abort 3 enable SERR# on PCI Parity Error (PERR#) 2 reserved 1 enable SERR# on receiving multiple-bit ECC/Parity error 0 enable SERR# on receiving single-bit ECC error SeeAlso: #3424,#3433 Bitfields for Intel 82441FX Error Status register: Bit(s) Description (Table 3433) 7-5 DRAM row causing first multi-bit error (read-only) 4 multiple-bit uncorrectable error detected write 1 to this bit to clear it 3-1 DRAM row causing first single-bit error (read-only) 0 single-bit correctable ECC error detected write 1 to this bit to clear it SeeAlso: #3424,#3432 Bitfields for Intel 82441FX Turbo Reset Control register: Bit(s) Description (Table 3434) 7-4 reserved 3 enable BIST on hard reset 2 reset CPU 1 reset mode 0 soft reset 1 hard reset 0 deturbo mode SeeAlso: #3424,PORT 0CF9h Format of OpenHCI Host Controller memory-mapped registers: Offset Size Description (Table 3330) 00h DWORD "HcRevision" OpenHCI revision (see #3455) 04h DWORD "HcControl" HC operating modes (see #3456) 08h DWORD "HcCommandStatus" command/status (see #3457) 0Ch DWORD "HcInterruptStatus" interrupt status (see #3458) 10h DWORD "HcInterruptEnable" enable interrupts (see #3459) 14h DWORD "HcInterruptDisable" disable interrupts (see #3459) 18h DWORD "HcHCCA" HC Communications Area (see #3462) 1Ch DWORD "HcPeriodCurrentED" Endpoint Descriptor addr (see #3463) 20h DWORD "HcControlHeadED" Control Endpoint Descriptor (see #3464) 24h DWORD "HcControlCurrentED" Control Endpoint Descriptor (see #3464) 28h DWORD "HcBulkHeadED" Bulk Endpoint Descriptor (see #3465) 2Ch DWORD "HcBulkCurrentED" Bulk Endpoint Descriptor (see #3465) 30h DWORD "HcDoneHead" last completed Xfer Descr. (see #3466) 34h DWORD "HcFmInterval" Frame bit-time interval (see #3516) 38h DWORD "HcFmRemaining" bit time remaining in Frame (see #3517) 3Ch DWORD "HcFmNumber" Frame Number (bits 15-0) 40h DWORD "HcPeriodicStart" earliest time to start periodic list (bits 13-0) 44h DWORD "HcLSThreshold" threshold for Low Speed transaction (bits 11-0) 48h DWORD "HcRhDescriptorA" Root Hub Descriptor A (see #3518) 4Ch DWORD "HcRhDescriptorB" Root Hub Descriptor B (see #3519) 50h DWORD "HcRhStatus" Root Hub status (see #3520) 54h N DWORDs "HCRhPortStatus[1-N]" Root Hub port status N (see #3521) Note: OpenHCI reserves a full 4K page of the systems address space for its memory-mapped registers SeeAlso: #0628,#0633,#F057 Bitfields for OpenHCI "HcRevision" register: Bit(s) Description (Table 3455) 31-8 reserved 7-0 BCD OpenHCI specification number (10h = 1.0, 11h = 1.1) Note: this register is read-only SeeAlso: #3330,#3456 Bitfields for OpenHCI "HcControl" register: Bit(s) Description (Table 3456) 31-11 reserved 10 RWE enable Remote Wakeup feature 9 RWC controller supports Remote Wakeup signalling 8 IR Interrupt Routing 0 normal host bus interrupt 1 System Managment Interrupt 7-6 HCFS USB Host Controller Functional State 00 USBReset 01 USBResume 10 USBOperational 11 USBSuspend 5 BLE enable Bulk List processing in next frame 4 CLE enable Control List processing in next frame 3 IE enable Isochronous ED processing 2 PLE enable processing of Periodic List in next frame 1-0 CBSR Control Bulk Service Ratio 00 1:1 Control EDs:Bulk EDs served 01 2:1 10 3:1 11 4:1 SeeAlso: #3330,#3455,#3457 Bitfields for OpenHCI "HcCommandStatus" register: Bit(s) Description (Table 3457) 31-18 reserved 17-16 SOC scheduling-overrun count 15-4 reserved 3 OCR ownership change request is pending 2 BLF bulk list contains TDs 1 CLF control list contains TDs 0 HCR host controller software reset Note: writing a 1 bit sets the corresponding bit, while a 0 bit leaves the corresponding bit unchanged SeeAlso: #3330,#3455,#3458 Bitfields for OpenHCI "HcInterruptStatus" register: Bit(s) Description (Table 3458) 31 reserved (0) 30 OC ownership change 29-7 reserved 6 RHSC Root Hub status changed 5 FNO frame number overflowed 4 UE unrecoverable error 3 RD resume detected 2 SF start of frame 1 WDH writeback done 0 SO scheduling overrun Note: writing a 1 bit clears the corresponding bit of the register SeeAlso: #3330,#3455,#3457,#3459 Bitfields for OpenHCI "HcInterruptEnable" and "HcInterruptDisable" registers: Bit(s) Description (Table 3459) 31 MIE master interrupt enable 30 OC ownership change 29-7 reserved 6 RHSC Root Hub status change 5 FNO frame number overflow 4 UE unrecoverable error 3 RD Resume Detect 2 SF start of frame 1 WDH HcDoneHead writeback 0 SO scheduling overrun Note: writing a 1 bit to HcInterruptEnable enables the corresponding interrupt, while writing a 1 bit to HcInterruptDisable disables it; zero bits are ignored. On reading, both registers return the same value, which reflects the currently enabled interrupts SeeAlso: #3330 Bitfields for OpenHCI "HcHCCA" register: Bit(s) Description (Table 3462) 31-8 physical address of Host Controller Communications Area (bits 31-8) 7-0 reserved (0) Note: the required alignment for the HCCA may be determined by writing FFFFFFFFh to this register and determining the number of low-order zero bits SeeAlso: #3330,#3463,#3464 Bitfields for OpenHCI "HcPeriodCurrentED" register: Bit(s) Description (Table 3463) 31-4 physical address of current Isochronous/Interrupt Endpoint Descriptor (bits 31-4) 3-0 reserved (0) SeeAlso: #3330,#3462,#3464 Bitfields for OpenHCI "HcControlHeadED"/"HcControlCurrentED" register: Bit(s) Description (Table 3464) 31-4 physical address of first/current Endpoint Descriptor (bits 31-4) 3-0 reserved (0) Note: HcControlCurrentED is set to 0000000h to indicate the end of the Control list SeeAlso: #3330,#3462,#3463 Bitfields for OpenHCI "HcBulkHeadED"/"HcBulkCurrentED" register: Bit(s) Description (Table 3465) 31-4 physical address of first/current Endpoint Descriptor in the Bulk list (bits 31-4) 3-0 reserved (0) Note: HcBulkCurrentED is set to 0000000h to indicate the end of the Bulk list SeeAlso: #3330,#3462,#3464 Bitfields for OpenHCI "HcDoneHead" register: Bit(s) Description (Table 3466) 31-4 physical address of most-recently completed Transfer Descriptor added to the Done queue (bits 31-4) 3-0 reserved (0) SeeAlso: #3330,#3463,#3465 Bitfields for OpenHCI "HcFmInterval" register: Bit(s) Description (Table 3516) 31 "FIT" toggled each time a new value is loaded into bits 13-0 30-16 "FSMPS" largest data packet in bits 15-14 reserved 13-0 "FI" Frame Interval (between to consecutive SOFs) SeeAlso: #3330,#3517 Bitfields for OpenHCI "HcFmRemaining" register: Bit(s) Description (Table 3517) 31 "FRT" loaded from bit 31 of HcFmInterval whenever FR reaches 0 30-14 reserved 13-0 "FR" FrameRemaining -- bits times left in current frame SeeAlso: #3330,#3516 Bitfields for OpenHCI "HcRhDescriptorA" register: Bit(s) Description (Table 3518) 31-24 "POTPGT" power-on to power-good time in 2ms units 23-13 reserved 12 "NOCP" no over-current protection supported 11 "OCPM" over-current status reported per-port 10 "DT" device type - is root hub compound device? 9 "NPS" NoPowerSwitching -- ports are always powered up 8 "PSM" power-switching mode -- if set, each port powered individually 7-0 "NDP" number of downstream ports SeeAlso: #3330,#3519,#3520 Bitfields for OpenHCI "HcRhDescriptorB" register: Bit(s) Description (Table 3519) 31-16 "PPCM" PortPowerControlMask -- bitmask of ports NOT affected by global power control (bit 16 [port #0] is reserved) 15-0 "DR" DeviceRemovable -- bitmap of removable devices SeeAlso: #3330,#3518,#3520 Bitfields for OpenHCI "HcRhStatus" register: Bit(s) Description (Table 3520) 31 "CRWE" Clear Remote Wakeup Enable write 1 to disable remote wakeup (writes of 0 ignored) 30-18 reserved 17 "OCIC" OverCurrent Indicator Change write 1 to clear 16 R "LPSC" Local Power Status Change W Set Global Power mode (write 1; writes of 0 ignored) 15 "DRWE" Device Remote Wakeup Enable write 1 to enable (writes of 0 ignored) read to get current status 14-2 reserved 1 "OCI" OverCurrent Indicator 0 R "LPS" LocalPowerStatus (always 0 for Root Hub) W write 1 to turn off power to all ports/ports with clear PortPowerControlMask bits SeeAlso: #3330,#3518,#3519,#3521 Bitfields for OpenHCI "HcRhPortStatusN" register: Bit(s) Description (Table 3521) 31-21 reserved 20 "PRSC" Port Reset Status Change (write '1' to clear) 19 "OCIC" Port OverCurrent Indiactor Change (write '1' to clear) 18 "PSSC" Port Suspend Status Change (write '1' to clear) 17 "PESC" Port Enable Status Change (write '1' to clear) 16 "CSC" Connect Status Change (write '1' to clear) 15-10 reserved 9 R "LSDA" Low Speed Device Attached W clear port power by writing '1' 8 R "PPS" Port Power Status W set port power by writing '1' 7-5 reserved 4 R "PRS" Port Reset Status W set port reset by writing '1' 3 R "POCI" Port OverCurrent Indicator W clear suspend status by writing '1' 2 R "PSS" Port Suspend Status W set port suspend by writing '1' 1 R "PES" Port Enable Status W set port enable by writing '1' 0 R "CCS" current connect status W clear port enable by writing '1' SeeAlso: #3330,#3518,#3519,#3520 --------X-1AB10B----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION BYTE AX = B10Bh BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) CL = byte to write Return: CF clear if successful CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B108h,AX=B10Ch,AX=B10Dh,AX=B18Bh,INT 2F/AX=1684h/BX=304Ch --------X-1AB10C----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION WORD AX = B10Ch BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (multiple of 2 less than 0100h) CX = word to write Return: CF clear if successful CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B109h,AX=B10Bh,AX=B10Dh,AX=B18Ch,INT 2F/AX=1684h/BX=304Ch --------X-1AB10D----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION DWORD AX = B10Dh BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (multiple of 4 less than 0100h) ECX = dword to write Return: CF clear if successful CF set on error AH = status (00h,87h) (see #0625) EAX, EBX, ECX, and EDX may be modified all other flags (except IF) may be modified Notes: this function may require up to 1024 byte of stack; it will not enable interrupts if they were disabled before making the call the meanings of BL and BH on entry were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B10Ah,AX=B10Bh,AX=B10Ch,AX=B18Dh,INT 2F/AX=1684h/BX=304Ch --------X-1AB10EBX0000----------------------- INT 1A - Intel PCI BIOS v2.1+ - GET IRQ ROUTING INFORMATION AX = B10Eh BX = 0000h DS = segment/selector for PCI BIOS data (real mode: F000h; 16-bit PM: physical 000F0000h; 32-bit PM: as specified by BIOS32 services directory) ES:(E)DI -> IRQ routing table header (see #0666 at AX=B406h) Return: CF clear if successful AH = 00h BX = bit map of IRQ channels permanently dedicated to PCI WORD ES:[DI] = size of returned data CF set on error AH = error code (59h) (see #0650) WORD ES:[DI] = required size of buffer SeeAlso: AX=B10Fh,AX=B406h,INT 2F/AX=1684h/BX=304Ch --------X-1AB10F----------------------------- INT 1A - Intel PCI BIOS v2.1+ - SET PCI IRQ AX = B10Fh BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) CH = number of IRQ to connect CL = number of interrupt pin (0Ah=INTA# to 0Dh=INTD#) to reprogram DS = segment/selector for PCI BIOS data (real mode: F000h; 16-bit PM: physical 000F0000h; 32-bit PM: as specified by BIOS32 services directory) Return: CF clear if successful AH = 00h CF set on error AH = error code (59h) (see #0650) Note: assumes that the calling application has determined the IRQ routing topology (see AX=B10Eh), has ensured that the selected IRQ will not cause a conflict, and will update the interrupt line configuration register on all devices which currently use the IRQ line SeeAlso: AX=B10Eh --------X-1AB181----------------------------- INT 1A - Intel PCI BIOS v2.0c - INSTALLATION CHECK (32-bit) AX = B181h Return: as for AX=B101h SeeAlso: AX=B101h --------X-1AB182----------------------------- INT 1A - Intel PCI BIOS v2.0c - FIND PCI DEVICE (32-bit) AX = B182h CX = device ID DX = vendor ID SI = device index (0-n) Return: as for AX=B102h SeeAlso: AX=B102h --------X-1AB183----------------------------- INT 1A - Intel PCI BIOS v2.0c - FIND PCI CLASS CODE (32-bit) AX = B183h ECX = class code (bits 23-0) SI = device index (0-n) Return: as for AX=B103h SeeAlso: AX=B103h --------X-1AB186----------------------------- INT 1A - Intel PCI BIOS v2.0c - PCI BUS-SPECIFIC OPERATIONS (32-bit) AX = B186h BH = bus number EDX = Special Cycle data Return: as for AX=B106h Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B106h --------X-1AB188----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION BYTE (32-bit) AX = B188h BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) Return: as for AX=B108h Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B108h --------X-1AB189----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION WORD (32-bit) AX = B189h BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) Return: as for AX=B109h Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B109h --------X-1AB18A----------------------------- INT 1A - Intel PCI BIOS v2.0c - READ CONFIGURATION DWORD (32-bit) AX = B18Ah BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) Return: as for AX=B10Ah Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B10Ah --------X-1AB18B----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION BYTE (32-bit) AX = B18Bh BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (0000h-00FFh) CL = byte to write Return: as for AX=B10Bh Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B10Bh --------X-1AB18C----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION WORD (32-bit) AX = B18Ch BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (multiple of 2 less than 0100h) CX = word to write Return: as for AX=B10Ch Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B10Ch --------X-1AB18D----------------------------- INT 1A - Intel PCI BIOS v2.0c - WRITE CONFIGURATION DWORD (32-bit) AX = B18Dh BH = bus number BL = device/function number (bits 7-3 device, bits 2-0 function) DI = register number (multiple of 4 less than 0100h) ECX = dword to write Return: as for AX=B10Dh Note: the meanings of BL and BH on return were exchanged between the initial drafts of the specification and final implementation SeeAlso: AX=B10Dh --------X-1AB400----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - INSTALLATION CHECK AX = B400h Return: CF clear if installed AX = 0000h if installed BH = ACFG major version (02h) BL = ACFG minor version (08h) CX = ??? (0002h) EDX = 47464341h ('GFCA', which is byte-swapped 'ACFG') SI = ??? (001Fh) SeeAlso: AX=B401h,AX=B402h,AX=B403h,AX=B404h,AX=B405h,AX=B406h,AX=B407h SeeAlso: @xxxxh:xxxxh"Plug-and-Play" (Table 0650) Values for Intel Plug-and-Play AUTO-CONFIGURATION error codes: 0000h successful 0001h specified action could not be completed 0051h ??? 0055h unable to read/write configuration table from/to nonvolatile storage 0056h not a valid configuration table or wrong table version 0059h buffer too small 0081h unsupported function FFFFh ??? SeeAlso: #F053 --------X-1AB401----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET DEFAULT CONFIG TABLE AX = B401h Return: CF clear if successful AX = 0000h BX = maximum size of configuration table in bytes CX = required configuration buffer size (includes scratch space used by ACFG code) EDI = linear/physical address of ESCD table (see #0651) CF set on error AX = error code (see #0650) SeeAlso: AX=B400h,AX=B402h,@xxxxh:xxxxh"Plug-and-Play" Format of Intel Plug-and-Play Extended System Configuration Data table: Offset Size Description (Table 0651) 00h WORD total length of this table 02h 4 BYTEs signature "ACFG" 06h BYTE minor version number 07h BYTE major version number (currently 02h) 08h BYTE number of boards listed in the configuration data 09h 3 BYTEs reserved (00h) 0Ch var board data WORD checksum Notes: this table contains information about the standard devices in the system, such as serial ports, parallel ports, etc. For each device, it includes at least the I/O port address (03F8h,02F8h,0378h,etc). the sum of all words in the table, including the checksum field (with implied zero padding if the length is odd), must equal 0000h SeeAlso: #0652 Format of Extended System Configuration Data Board Header: Offset Size Description (Table 0652) 00h WORD length of this header in bytes 02h BYTE slot number 00h motherboard 01h-0Fh ISA/EISA 10h-40h PCI 03h BYTE reserved (00h) SeeAlso: #0651,#0653 Format of Extended System Configuration Data Freeform Board Header: Offset Size Description (Table 0653) 00h 4 BYTEs signature "ACFG" 04h BYTE minor version number 05h BYTE major version number (currently 02h) 06h BYTE board type 01h ISA 02h EISA 04h PCI 08h PCMCIA 10h PnPISA 20h MCA 07h BYTE reserved (00h) 08h WORD disabled functions (bit N set = function N disabled) 0Ah WORD configuration error functions 0Ch WORD reconfigurable functions (bit N set = function N reconfig'able) 0Eh 2 BYTEs reserved (00h) SeeAlso: #0656,#0657 Format of Extended System Configuration Data Freeform PCI Device Data: Offset Size Description (Table 0654) 00h BYTE PCI bus number 01h BYTE PCI device and function number 02h WORD PCI device identifier 04h WORD PCI vendor ID (see #0629) 06h 2 BYTEs reserved (00h) SeeAlso: #0654,#0657 Format of Extended System Configuration Data Freeform PnP ISA Board ID: Offset Size Description (Table 0655) 00h DWORD vendor ID (EISA device identifier) 04h DWORD serial number SeeAlso: #0655,#0656 Format of Extended System Configuration Data PnP ISA ECD Extension Function: Offset Size Description (Table 0656) 00h WORD 001Eh (length of this structure) 02h BYTE 01h (selection size) 03h BYTE 00h (selection data) 04h BYTE C0h (function information byte) (see #0659) 05h BYTE 18h (size of following free-format data) 06h 16 BYTEs freeform board header (see #0653) 16h 8 BYTEs Plug-and-Play board ID (see #0655) Note: ECD = Extended Configuration Data; this structure must be the last "function" for a particular ISA Plug-and-Play board SeeAlso: #0657 Format of Extended System Configuration Data PCI ECD Extension Function: Offset Size Description (Table 0657) 00h WORD length of this structure (at least 001Eh, up to 0056h) 02h BYTE 01h (selection size) 03h BYTE 00h (selection data) 04h BYTE C0h (function information byte) (see #0659) 05h BYTE size of following free-format data (at least 18h, max 50h) 06h 16 BYTEs freeform board header (see #0653) 16h 8N BYTEs PCI board ID (see #0654) for one to eight boards Notes: ECD = Extended Configuration Data; this structure must be the last "function" for a particular PCI board AMI BIOS v1.00.05.AX1 sets the length field to 001Ch for entries with a single board ID, apparently treating the field as the length of the remainder of the structure instead of the full structure's length SeeAlso: #0656 Bitfields for EISA ID and Slot Information: Bit(s) Description (Table 0658) 3-0 selector among duplicate configuration file names (0000 if no dups) 5-4 slot type 00 expansion slot 01 embedded 10 virtual slot 11 reserved 6 ID is readable 7 duplicate IDs present 8 board can be disabled 9 IOCHKERR supported 10 board or entries locked 13-11 reserved 14 board does not have or need configuration file 15 configuration not complete SeeAlso: #0659 Bitfields for EISA Function Information: Bit(s) Description (Table 0659) 0 subtype data 1 memory information (see #0660) 2 IRQ information (see #0662) 3 DMA information (see #0663) 4 port range information (see #0664) 5 port initialization data (see #0665) 6 free form data 7 function disabled SeeAlso: #0656,#0657,#0658 Format of EISA Memory Information: Offset Size Description (Table 0660) 00h WORD memory information flags (see #0661) 02h 3 BYTEs high 24 bits of memory start address (LSB first) 05h WORD memory size in K (0000h = 65536K) SeeAlso: #0659 Bitfields for EISA Memory Information Flags: Bit(s) Description (Table 0661) 0 writable (RAM rather than ROM) 1 cached 2 write-back cache rather than write-through 4-3 memory type 00 system 01 expantion 10 virtual 11 other 5 shared 6 reserved (0) 7 more entries follow 9-8 memory width 00 byte 01 word 10 dword 11 reserved 11-10 decoded address lines 00 = 20 01 = 24 10 = 32 11 reserved 15-12 reserved (0) SeeAlso: #0660 Bitfields for EISA IRQ Information: Bit(s) Description (Table 0662) 3-0 IRQ number 4 reserved (0) 5 IRQ triggering (0 = edge, 1 = level) 6 IRQ is shareable 7 more entries follow 15-8 reserved (0) SeeAlso: #0659 Bitfields for EISA DMA Information: Bit(s) Description (Table 0663) 2-0 DMA channel number 5-3 reserved (0) 6 shareable 7 more entries follow 9-8 reserved 11-10 DMA transfer size 00 byte 01 word 10 dword 11 word, but count in bytes 13-12 DMA timing 00 ISA-compatible 01 EISA type "A" 10 EISA type "B" 11 EISA type "C"/"F" (burst) 15-14 reserved (0) SeeAlso: #0659 Format of EISA Port Range Information: Offset Size Description (Table 0664) 00h BYTE port description bits 4-0: number of sequential ports bit 5 reserved (0) bit 6: shareable bit 7: more entries follow 01h WORD I/O port address SeeAlso: #0659,#0665 Format of EISA Port Initialization Data: Offset Size Description (Table 0665) 00h BYTE flags bits 1-0: port size 00 byte 01 word 10 dword 11 reserved bit 2: masked write bits 6-3 reserved (0) bit 7: more entries follow 01h ??? SeeAlso: #0659,#0664 --------X-1AB402----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - COPY AND VERIFY CONFIG TABLE AX = B402h DS:SI -> configuration table (see #0651) ES:DI -> buffer for copy of configuration table Return: CF clear if successful AX = 0000h CF set on error AX = error code (0055h,0056h) (see #0650) Note: the buffer pointed at by ES:DI must be at least as large as the maximum configuration table size reported by AX=B401h SeeAlso: AX=B400h,AX=B401h,AX=B403h --------X-1AB403----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - STORE ESCD TABLE IN NVRAM AX = B403h DS:SI -> configuration table (see #0651) Return: CF clear if successful AX = 0000h CF set on error AX = error code (0055h) (see #0650) Note: sets the configuration table's checksum field, then copies the table into nonvolatile storage (i.e. FlashROM) SeeAlso: AX=B400h,AX=B402h --------X-1AB404----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET AVAILABLE IRQs??? AX = B404h BX = bitmap of IRQs being used??? Return: CF clear if successful AX = 0000h BX = available for ISA??? (not(BXin) & A127h) CX = available for on-board I/O??? (not(BXin) & 40D8h) DX = available for PCI??? (either not(BXin) & 0E00h or 0000h) CF set on error AX = error code (0051h) (see #0650) Note: the various vector types have also been called "shareable", "unshareable", and "avoidable" SeeAlso: AX=B400h,INT 2F/AX=1684h/BX=304Ch --------X-1AB405----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET ??? AX = B405h Return: AX = ??? (0008h) SeeAlso: AX=B400h --------X-1AB406----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET PCI IRQ ROUTING TABLE AX = B406h ES:DI -> IRQ routing table header (see #0666) Return: CF clear if successful AX = 0000h WORD ES:[DI] = size of returned data CF set on error AX = error code (0059h) (see #0650) WORD ES:[DI] = required size of buffer SeeAlso: AX=B400h,AX=B404h,AX=B10Eh,INT 2F/AX=1684h/BX=304Ch Format of Intel Plug-and-Play AUTO-CONFIGURATION PCI IRQ routing header: Offset Size Description (Table 0666) 00h WORD length of IRQ routing table buffer 02h DWORD -> IRQ routing table array buffer (see #0667) Format of Intel Plug-and-Play ACFG PCI IRQ routing table entry [array]: Offset Size Description (Table 0667) 00h BYTE PCI bus number 01h BYTE PCI device number (bits 7-3) 02h BYTE link value for INTA# (if non-zero, wire-ORed together with any other PCI interrupts with same link value) 03h WORD IRQ connectivity bit map for INTA# (standard AT IRQs to which PCI interrupt can be routed) 05h BYTE link value for INTB# 06h WORD IRQ connectivity bit map for INTB# 08h BYTE link value for INTC# 09h WORD IRQ connectivity bit map for INTC# 0Bh BYTE link value for INTD# 0Ch WORD IRQ connectivity bit map for INTD# 0Eh BYTE (PCI BIOS v2.1+) device slot number (00h = motherboard) 0Fh BYTE reserved Note: each item in the routing table corresponds to a motherboard PCI device or PCI slot SeeAlso: #0666 --------X-1AB407----------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - ??? AX = B407h EDX = length of ??? EDI = physical address of ??? Return: CF clear if successful AX = 0000h EDX = ??? EDI = ??? CF set on error AX = error code (FFFFh) (see #0650) Notes: returns error if EDI < 000C0000h or EDI+EDX > 00100000h seems to force EDI and EDX to align to 16K boundaries SeeAlso: AX=B400h --------X-1AB4------------------------------- INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - 32-BIT API AH = B4h AL = function (80h-87h) further details not yet available Note: these functions are 32-bit versions of functions 00h-07h --------c-1AC0------------------------------- INT 1A U - Disk Spool II v2.07+ - ALTERNATE INSTALLATION CHECK AH = C0h Return: (see AH=A0h) Notes: this call is identical to AH=A0h this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=A0h,AH=ABh,AH=D0h --------U-1ACCCCBXCCCC----------------------- INT 1A U - DATEFIX - INSTALLATION CHECK AX = CCCCh BX = CCCCh CX = 0000h Return: CX = CCCCh if installed ES:BX -> original interrupt handler Program: DATEFIX is a public-domain TSR to correct the date on AT&T 6300 machines, where the realtime clock's calendar wraps after 1991 SeeAlso: AH=FEh,AH=FFh"AT&T" --------c-1AD0------------------------------- INT 1A U - Disk Spool II v2.07+ - FUNCTION CALLS AH = D0h AL = function code 01h enable spooler and despooler 02h enable spooler only 03h enable despooler at beginning of file 04h disable the despooler 05h disable the despooler and spooler 06h clear the spool file 08h inhibit the popup menu 09h enable the popup menu 0Ah ??? (called by Disk Spool's INT 21 handler) 0Bh disable the spooler 0Ch start despooler after last successfully printed document 0Dh start despooler at the exact point where it last left off 0Eh pop up the menu 0Fh ??? 11h start new spool file??? (called by Disk Spool's INT 21 handler when a program terminates) 14h ??? 15h delete despool file and reset ??? 16h ??? (writes something to unknown file) 17h ??? (writes something to despool file, then reads something else and ???) 18h ??? (reads something from despool file, and then ???) 19h ??? (creates/truncates spool file) 20h clear file pointed to by the despooler 21h ??? (writes something to unknown file) 22h ??? (writes something to spool file if spooler/despooler using same file) 23h ??? (opens/creates unknown file, then ???) 30h ??? 31h ??? 32h beep 33h append CRLF to spool file??? 34h ??? 35h ??? 36h ??? 37h append CRLF to spool file and start a new spool file??? 38h ??? 40h ??? (v4.05) 41h ??? (v4.05) 51h ??? (called by Disk Spool's INT 21 handler) 52h ??? (called by Disk Spool's INT 21 handler) 57h ??? 5Ah ??? (v4.05) 5Bh ??? (v4.05) 5Ch ??? (v4.05) Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=A0h,AH=ADh --------c-1AE0------------------------------- INT 1A - Disk Spool II v4.0x - ENABLE/DISABLE AH = E0h AL = subfunction 01h enable spooler 02h disable spooler 03h enable despooler 04h disable despooler CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AH = status 00h successful F0h printer port not managed by Disk Spool II FFH failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=A0h,AH=E1h,AX=E301h,AX=E401h --------c-1AE1------------------------------- INT 1A - Disk Spool II v4.0x - GET STATUS AH = E1h CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AH = status 00h successful CL = despooler state (00h disabled, 41h enabled) CH = spooler state (00h disabled, 41h enabled) DL = despooler activity (00h standing by, 41h printing) ES:BX -> ASCIZ name of current spool file (or next if AutoSpool or AutoDespool enabled) ES:SI -> ASCIZ name of current despool file ES:DI -> 3-byte file extension used by Disk Spool II F0h printer port not managed by Disk Spool II Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=A0h,AH=E0h,AH=E2h --------U-1AE11B----------------------------- INT 1A - TheGrab v4.60 - ??? AX = E11Bh ??? Return: ??? (may destroy all registers) SeeAlso: AX=E11Dh --------U-1AE11D----------------------------- INT 1A - TheGrab v4.60 - INSTALLATION CHECK AX = E11Dh Return: ES:DI -> signature block (see #0668) if installed CX = length of signature block (000Fh) Program: TheGrab is a resident ANSI screen grabber bundled with TheDraw SeeAlso: AX=E11Bh Format of TheGrab signature block: Offset Size Description (Table 0668) 00h BYTE 08h 01h 8 BYTEs ASCIZ "THEGRAB" 09h 6 BYTEs ??? (zeros) --------c-1AE2------------------------------- INT 1A - Disk Spool II v4.0x - GET SPOOL FILES AH = E2h AL = which 01h first 02h next (can only call after "first") CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AH = status 00h successful ES:BX -> ASCIZ filename F0h no (more) spool files FFh failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E0h,AH=E1h --------c-1AE301----------------------------- INT 1A - Disk Spool II v4.0x - GET SPOOL FILE STATUS AX = E301h ES:BX -> ASCIZ filename (max 32 chars) Return: AH = status 00h successful ES:SI -> spool file status record (see #0669) F0h not a spool file FFh failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E0h,AX=E302h,AX=E401h Format of Disk Spool II spool file status record: Offset Size Description (Table 0669) 00h BYTE hour of creation or last update 01h BYTE minute of creation or last update 02h BYTE year-1980 of creation or last update 03h BYTE month of creation or last update 04h BYTE day of creation or last update 05h BYTE total number of copies to print 06h BYTE number of copies already printed 07h BYTE printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) 08h BYTE save status (00h delete after printing, 01h save) 09h BYTE file status 01h done printing, but being saved 02h on hold 03h queued for printing 04h being spooled 05h being despooled (i.e. printed) 0Ah 16 BYTEs ASCIZ description 1Ah 2 WORDs file size in bytes (high,low) 1Eh 2 WORDs bytes left to print (high,low) --------c-1AE302----------------------------- INT 1A - Disk Spool II v4.0x - UPDATE SPOOL FILE AX = E302h ES:BX -> ASCIZ filename (max 32 chars) ES:SI -> spool file status record (see #0669) Return: AH = status 00h successful F0h not a spool file FFh failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E0h,AX=E301h,AX=E401h --------c-1AE401----------------------------- INT 1A - Disk Spool II v4.0x - SPOOL EXISTING FILE AX = E401h ES:BX -> ASCIZ filename (max 32 chars) CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AH = status 00h successful FFh failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E1h,AX=E302h,AX=E402h --------c-1AE402----------------------------- INT 1A U - Disk Spool II v4.0x - SPOOL EXISTING FILE??? AX = E402h ES:BX -> ASCIZ filename (max 32 chars) CL = printer port (01h COM1, 02h COM2, 05h LPT1, 06h LPT2) Return: AH = status 00h successful FFh failed Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E1h,AX=E302h,AX=E401h --------c-1AE5------------------------------- INT 1A U - Emulaser ELSPL.COM - ??? AH = E5h ??? Return: ??? Program: ELSPL.COM is a licensed version of Disk Spool II which is distributed as part of Vertisoft's Emulaser PostScript emulator SeeAlso: AH=A0h,INT 17/AH=03h --------c-1AEE------------------------------- INT 1A U - Disk Spool II v4.05 - ??? AH = EEh AL = printer port??? ??? Return: ??? Note: this function is also supported by Vertisoft's Emulaser utility ELSPL, as that is a licensed version of Disk Spool II SeeAlso: AH=E1h --------U-1AF7------------------------------- INT 1A - RighTime v1.1 - TEMPORARILY DISABLE AH = F7h Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system time to correct for clock drift Note: any AH value from F0h-F7h or F9h-FEh will perform this function in version 1.1, but F7h is the function called by transient portion SeeAlso: AH=F8h,AH=FFh"RighTime" --------U-1AF8------------------------------- INT 1A - RighTime v1.1 - ENABLE AH = F8h Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system time to correct for clock drift Note: RighTime is TeSseRact-compatible (see INT 2F/AX=5453h) and modifies its TeSseRact program identifier based on its current state: "RighTime" when enabled, "RighTim"F7h when disabled. SeeAlso: AH=F7h,AH=FFh"RighTime" --------b-1AFE------------------------------- INT 1A - AT&T 6300 - READ TIME AND DATE AH = FEh Return: BX = day count (0 = Jan 1, 1984) CH = hour CL = minute DH = second DL = hundredths SeeAlso: AX=CCCCh/BX=CCCCh,AH=FFh"AT&T",INT 21/AH=2Ah,INT 21/AH=2Ch --------b-1AFF------------------------------- INT 1A - AT&T 6300 - SET TIME AND DATE AH = FFh BX = day count (0 = Jan 1, 1984) CH = hour CL = minute DH = second DL = hundredths Return: ??? SeeAlso: AX=CCCCh/BX=CCCCh,AH=FEh,INT 21/AH=2Bh"DATE",INT 21/AH=2Dh --------U-1AFF------------------------------- INT 1A - RighTime v1.1 - PERMANENTLY DISABLE AH = FFh Program: RighTime is a TSR by G.T. Becker which continuously adjusts the system time to correct for clock drift Note: upon being permanently disabled, RighTime closes the file handle referencing its executable (which is updated with time correction information every two minutes while RighTime is enabled). --------s-1AFF00----------------------------- INT 1A - SND - INSTALLATION CHECK??? AX = FF00h Return: AL = version??? (02h) AH = busy flag (00h if not in a SND call, 01h if SND currently active) Note: the SND API is also supported by IC (Internal Commands) v2.0, a shareware TSR by Geoff Friesen which extends COMMAND.COM's internal command set SeeAlso: AX=FF01h,AX=FF02h,AX=FF04h,AX=FF05h --------s-1AFF01----------------------------- INT 1A - SND - PAUSE AX = FF01h DX = number of clock ticks to delay Return: AH = status 00h successful 01h SND busy Notes: if successful, execution returns to the caller after the delay expires; if SND is busy, execution returns immediately the IC v2.0 implementation of this API makes no special allowance for time rollover at midnight, which can cause the delay to be over one hour if this function is called just before the BIOS time count rolls over and the delay extends into the next day SeeAlso: AX=FF00h,INT 15/AH=86h,INT 62/AX=0096h,INT 7F/AH=E8h,INT 80/BX=0009h SeeAlso: INT E0/CL=BDh --------s-1AFF02----------------------------- INT 1A - SND - START SOUND AX = FF02h DX = frequency in Hertz (14h-FFFFh) Return: AH = status 00h successful 01h SND busy SeeAlso: AX=FF00h,AX=FF01h,AX=FF03h --------s-1AFF03----------------------------- INT 1A - SND - STOP SOUND AX = FF03h Return: AH = status 00h successful 01h busy Note: turns off any sound currently being emitted by the PC's speaker unless SND is currently busy processing an API call (this includes background music). Use AX=FF05h to stop the sound even if an API call is in progress. SeeAlso: AX=FF00h,AX=FF02h,AX=FF05h --------s-1AFF04----------------------------- INT 1A - SND - PLAY MUSIC STRING IN BACKGROUND AX = FF04h DS:DX -> ASCIZ music string Return: AH = status 00h successful (music begins playing in background) 01h busy Note: the music string accepted by SND is not the same as that accepted by BASIC and other programs which process music strings SeeAlso: AX=FF00h,AX=FF05h,INT 80/BX=0006h --------s-1AFF05----------------------------- INT 1A - SND - UNCONDITIONALLY STOP SOUND AX = FF05h Return: AH = 00h (successful) Note: this function is the same as AX=FF03h, but will stop the sound even if SND is currently busy, such as playing background music SeeAlso: AX=FF00h,AX=FF03h,INT 80/BX=0007h --------B-1B--------------------------------- INT 1B C - KEYBOARD - CONTROL-BREAK HANDLER Desc: this interrupt is automatically called when INT 09 determines that Control-Break has been pressed Note: normally points to a short routine in DOS which sets the Ctrl-C flag, thus invoking INT 23h the next time DOS checks for Ctrl-C. SeeAlso: INT 23 --------B-1C--------------------------------- INT 1C - TIME - SYSTEM TIMER TICK Desc: this interrupt is automatically called on each clock tick by the INT 08 handler Notes: this is the preferred interrupt to chain when a program needs to be invoked regularly not available on NEC 9800-series PCs SeeAlso: INT 08,INT E2"PC Cluster" --------B-1D--------------------------------- INT 1D - SYSTEM DATA - VIDEO PARAMETER TABLES Note: the default parameter table (see #0670) is located at F000h:F0A4h for 100% compatible BIOSes SeeAlso: INT 10/AH=00h Format of video parameters: Offset Size Description (Table 0670) 00h 16 BYTEs 6845 register values for modes 00h and 01h 10h 16 BYTEs 6845 register values for modes 02h and 03h 20h 16 BYTEs 6845 register values for modes 04h and 05h 30h 16 BYTEs 6845 register values for modes 06h and 07h 40h WORD bytes in video buffer for modes 00h and 01h (0800h) 42h WORD bytes in video buffer for modes 02h and 03h (1000h) 44h WORD bytes in video buffer for modes 04h and 05h (4000h) 46h WORD bytes in video buffer for mode 06h (4000h) 48h 8 BYTEs columns on screen for each of modes 00h through 07h 50h 8 BYTEs CRT controller mode bytes for each of modes 00h through 07h Note: QEMM v7.5 Stealth appears to copy only the first 40h bytes of this table into always-accessible memory --------B-1E--------------------------------- INT 1E - SYSTEM DATA - DISKETTE PARAMETERS Notes: the default parameter table (see #0671) is located at F000h:EFC7h for 100% compatible BIOSes if the table is changed, INT 13/AH=00h should be called to ensure that the floppy-disk controller is appropriately reprogrammed SeeAlso: INT 13/AH=0Fh,INT 41"HARD DISK 0",INT 4D/AH=0Ah Format of diskette parameter table: Offset Size Description (Table 0671) 00h BYTE first specify byte bits 7-4: step rate bits 3-0: head unload time (0Fh = 240 ms) 01h BYTE second specify byte bits 7-1: head load time (01h = 4 ms) bit 0: non-DMA mode (always 0) 02h BYTE delay until motor turned off (in clock ticks) 03h BYTE bytes per sector (00h = 128, 01h = 256, 02h = 512, 03h = 1024) 04h BYTE sectors per track 05h BYTE length of gap between sectors (2Ah for 5.25", 1Bh for 3.5") 06h BYTE data length (ignored if bytes-per-sector field nonzero) 07h BYTE gap length when formatting (50h for 5.25", 6Ch for 3.5") 08h BYTE format filler byte (default F6h) 09h BYTE head settle time in milliseconds 0Ah BYTE motor start time in 1/8 seconds SeeAlso: #2481 at INT 4D/AH=09h --------B-1F--------------------------------- INT 1F - SYSTEM DATA - 8x8 GRAPHICS FONT Desc: this vector points at 1024 bytes of graphics data, 8 bytes for each character 80h-FFh Note: graphics data for characters 00h-7Fh stored at F000h:FA6Eh in 100% compatible BIOSes SeeAlso: INT 10/AX=5000h,INT 43 --------b-1F12------------------------------- INT 1F U - C&T "SuperState" BIOS - POWER OFF AH = 12h Return: none Note: POWER OFF --------b-1F17------------------------------- INT 1F U - C&T "SuperState" BIOS - EXECUTE FAR PROC ROUTINE ON SuperState AH = 17h ES:DI -> far procedure Return: all registers except AH,ES,DI Note: You can change the BIOS area (F000h:0000h - F000h:FFFFh) only through this function --------b-1F19------------------------------- INT 1F U - C&T "SuperState" BIOS - ENABLE AUTO WAKEUP AND SET TIME AND DATE AH = 19h AL = hour in BCD BH = minutes in BCD BL = seconds in BCD CH = year century in BCD (must be 19h) CL = year low in BCD DH = month in BCD DL = date in BCD Return: CF clear --------b-1F1C------------------------------- INT 1F U - C&T "SuperState" BIOS - SET SUSPEND TIMEOUT AH = 1Ch BX = sec until suspend starts Return: None --------b-1F1D------------------------------- INT 1F U - C&T "SuperState" BIOS - SET SLEEP TIMEOUT AH = 1Dh BX = sec until sleep starts Return: None --------J-1F90------------------------------- INT 1F - NEC PC-9801 - COPY EXTENDED MEMORY AH = 90h ES:BX -> global descriptor table (see #0403 at INT 15/AH=87h) CX = number of bytes to copy SI = 0000h DI = 0000h Return: CF clear if successful CF set on error ??? SeeAlso: INT 15/AH=87h --------b-1FF5--BLFA------------------------- INT 1F U - C&T "SuperState" BIOS - REQUEST PASSWORD INPUT AH = F5h BL = FAh Return: none Note: this function will not return until the correct password is entered SeeAlso: AH=F5h/BL=FDh,AH=F5h/BL=FEh --------b-1FF5--BLFD------------------------- INT 1F U - C&T "SuperState" BIOS - ENCRYPT PASSWORD AH = F5h BL = FDh CX:SI = input string DX:DI = encrypted string BH = length of input string Return: CF set on error SeeAlso: AH=F5h/BL=FAh,AH=F5h/BL=FEh --------b-1FF5--BLFE------------------------- INT 1F U - C&T "SuperState" BIOS - SET PASSWORD AH = F5h BL = FEh CX:SI -> input string BH = length of input string (if BH = 00h, clear password) Return: CF set on error Note: the input string must be encrypted by INT 1Fh/AH=F5h/BL=FDh SeeAlso: AH=F5h/BL=FDh,AH=F5h/BL=FFh --------b-1FF5--BLFF------------------------- INT 1F U - C&T "SuperState" BIOS - GET ENCRYPTED PASSWORD AH = F5h BL = FFh DX:DI = string buffer Return: CF set on error CF clear if successful BH = length of input string (if BH = 00h, password is not valid) DX:DI -> encrypted password string SeeAlso: AH=F5h/BL=FDh,AH=F5h/BL=FEh --------b-1FFB------------------------------- INT 1F U - C&T "SuperState" BIOS - GET/SET CPU SPEED AH = FBh BL = function 00h get CPU speed Return: AL = current CPU speed (00h = fast, 01h = slow) 01h set CPU speed AL = new CPU speed (00h = fast, 01h = slow) SeeAlso: AH=FCh/BL=00h --------b-1FFC--BL00------------------------- INT 1F U - C&T "SuperState" BIOS - GET ALARM STATUS AH = FCh BL = 00h Return: AL = current alarm state (00h = disabled, 01h = enabled) SeeAlso: AH=FCh/BL=01h,AH=FCh/BL=02h --------b-1FFC--BL01------------------------- INT 1F U - C&T "SuperState" BIOS - SET ALARM STATUS AH = FCh BL = 01h AL = new alarm state (00h = disabled, 01h = enabled) SeeAlso: AH=FCh/BL=00h,AH=FCh/BL=03h --------b-1FFC--BL02------------------------- INT 1F U - C&T "SuperState" BIOS - GET ALARM TIME AH = FCh BL = 02h Return: CH = hour by BCD CL = min by BCD DH = sec by BCD SeeAlso: AH=FCh/BL=00h,AH=FCh/BL=03h,AH=FCh/BL=04h --------b-1FFC--BL03------------------------- INT 1F U - C&T "SuperState" BIOS - SET ALARM TIME AH = FCh BL = 03h CH = hour by BCD CL = min by BCD DH = sec by BCD Return: CF set on error (incorrect time format or Alarm is not enable) SeeAlso: AH=FCh/BL=01h,AH=FCh/BL=02h,AH=FCh/BL=05h --------b-1FFC--BL04------------------------- INT 1F U - C&T "SuperState" BIOS - GET ALARM DATE AH = FCh BL = 04h Return: CH = year century by BCD CL = year low by BCD DH = month by BCD DL = date by BCD SeeAlso: AH=FCh/BL=02h,AH=FCh/BL=05h --------b-1FFC--BL05------------------------- INT 1F U - C&T "SuperState" BIOS - SET ALARM DATE AH = FCh BL = 05h CH = year century by BCD CL = year low by BCD DH = month by BCD DL = date by BCD Return: CF set on error (incorrect date format or Alarm is not enable) SeeAlso: AH=FCh/BL=03h,AH=FCh/BL=04h --------b-1FFD--BL00------------------------- INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP STATUS AH = FDh BL = 00h Return: AL = current wake-up state (00h = disabled, 01h = enabled) SeeAlso: AH=FDh/BL=01h,AH=FDh/BL=02h --------b-1FFD--BL01------------------------- INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP STATUS AH = FDh BL = 01h AL = new wake-up state (00h = disabled, 01h = enabled) SeeAlso: AH=FDh/BL=00h,AH=FDh/BL=03h --------b-1FFD--BL02------------------------- INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP TIME AH = FDh BL = 02h Return: CH = hour by BCD CL = min by BCD DH = sec by BCD SeeAlso: AH=FDh/BL=00h,AH=FDh/BL=03h --------b-1FFD--BL03------------------------- INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP TIME AH = FDh BL = 03h CH = hour by BCD CL = min by BCD DH = sec by BCD Return: CF set on error (incorrect Time format or Auto Wake up is not enable) SeeAlso: AH=FDh/BL=01h,AH=FDh/BL=02h --------b-1FFD--BL04------------------------- INT 1F U - C&T "SuperState" BIOS - GET AUTO WAKE UP DATE AH = FDh BL = 04h Return: CH = year century in BCD CL = year low in BCD DH = month in BCD DL = date in BCD SeeAlso: AH=FDh/BL=02h,AH=FDh/BL=05h --------b-1FFD--BL05------------------------- INT 1F U - C&T "SuperState" BIOS - SET AUTO WAKE UP DATE AH = FDh BL = 05h CH = year century in BCD CL = year low in BCD DH = month in BCD DL = date in BCD Return: CF set on error (incorrect date format or Auto Wake up is not enable) SeeAlso: AH=FDh/BL=03h"C&T",AH=FDh/BL=04h"C&T" --------O-20--------------------------------- INT 20 - Minix - SEND/RECEIVE MESSAGE AX = process ID of other process BX -> message CX = operation (1 send, 2 receive, 3 send&receive) Program: Minix is a Version 7 Unix-compatible operating system by Andrew Tanenbaum Note: the message contains the system call number (numbered as in V7 Unix(tm)) and the call parameters --------D-20--------------------------------- INT 20 - DOS 1+ - TERMINATE PROGRAM CS = PSP segment Return: never Notes: (see INT 21/AH=00h) this function sets the program's return code (ERRORLEVEL) to 00h SeeAlso: INT 21/AH=00h,INT 21/AH=4Ch --------G-20--------------------------------- INT 20 - COMTROL HOSTESS i/ISA DEBUGGER - INVOKE FIRMWARE DEBUGGER ??? Return: ??? SeeAlso: INT 21"COMTROL" --------W-20--------------------------------- INT 20 P - Microsoft Windows - VxD SERVICES Note: the desired VxD and service number are identified by the data immediately following the INT 20 instruction, as in: INT 20h DW service number DW VxD identifier SeeAlso: INT 2F/AX=1684h"DEVICE API",INT 30"Windows",#0672,#3382 (Table 0672) Values for VMM (VxD ID 0001h) service number: 0000h get version 0001h get current VM handle 0002h test current VM handle 0003h get system VM handle 0004h test system VM handle 0005h validate VM handle 0006h get VMM reenter count 0007h begin reentrant execution 0008h end reentrant execution 0009h install V86 breakpoint 000Ah remove V86 breakpoint 000Bh allocate V86 callback 000Ch allocation PM callback 000Dh call when VM returns 000Eh schedule global event 000Fh schedule VM event 0010h call global event 0011h call VM event 0012h cancel global event 0013h cancel VM event 0014h call priority VM event 0015h cancel priority VM event 0016h get NMI handler address 0017h set NMI handler address 0018h hook NMI event 0019h call when VM interrupts enabled 001Ah enable VM interrupts 001Bh disable VM interrupts 001Ch map flat 001Dh map linear to VM address 001Eh adjust execution priority 001Fh begin critical section 0020h end critical section 0021h end critical section and suspend 0022h claim critical section 0023h release critical section 0024h call when not critical 0025h create semaphore 0026h destroy semaphore 0027h wait on semaphore 0028h signal semaphore 0029h get critical section status 002Ah call when task switched 002Bh suspend VM 002Ch resume VM 002Dh no-fail resume VM 002Eh nuke VM 002Fh crash current VM 0030h get execution focus 0031h set execution focus 0032h get time slice priority 0033h set time slice priority 0034h get time slice granularity 0035h set time slice granularity 0036h get time slice information 0037h adjust execution time 0038h release time slice 0039h wake up VM 003Ah call when idle 003Bh get next VM handle 003Ch set global timeout 003Dh set VM timeout 003Eh cancel timeout 003Fh get system time Return: EAX = time in milliseconds that Windows has been running 0040h get VM execution time 0041h hook V86 interrupt chain 0042h get V86 interrupt vector 0043h set V86 interrupt vector 0044h get PM interrupt vector 0045h set PM interrupt vector 0046h simulate interrupt 0047h simulate IRET 0048h simulate far call 0049h simulate far jump 004Ah simulate far RET 004Bh simulate far RET N 004Ch build interrupt stack frame 004Dh simulate push 004Eh simulate pop 004Fh _HeapAllocate 0050h _HeapReAllocate 0051h _HeapFree 0052h _HeapGetSize 0053h _PageAllocate 0054h _PageReAllocate 0055h _PageFree 0056h _PageLock 0057h _PageUnLock 0058h _PageGetSizeAddr 0059h _PageGetAllocInfo 005Ah _GetFreePageCount 005Bh _GetSysPageCount 005Ch _GetVMPgCount 005Dh _MapIntoV86 005Eh _PhysIntoV86 005Fh _TestGlobalV86Mem 0060h _ModifyPageBits 0061h copy page table 0062h map linear into V86 0063h linear page lock 0064h linear page unlock 0065h _SetResetV86Pageabl 0066h _GetV86PageableArray 0067h _PageCheckLinRange 0068h page out dirty pages 0069h discard pages 006Ah _GetNulPageHandle 006Bh get first V86 page 006Ch map physical address to linear address 006Dh _GetAppFlatDSAlias 006Eh _SelectorMapFlat 006Fh _GetDemandPageInfo 0070h _GetSetPageOutCount 0071h hook V86 page 0072h assign device V86 pages 0073h deassign device V86 pages 0074h get array of V86 pages for device 0075h _SetNULPageAddr 0076h allocate GDT selector 0077h free GDT selector 0078h allocate LDT selector 0079h free LDT selector 007Ah _BuildDescriptorDWORDs 007Bh get descriptor 007Ch set descriptor 007Dh toggle HMA 007Eh get fault hook addresses 007Fh hook V86 fault 0080h hook PM fault 0081h hook VMM fault 0082h begin nested V86 execution 0083h begin nested execution 0084h execute V86-mode interrupt 0085h resume execution 0086h end nested execution 0087h allocate PM application callback area 0088h get current PM application callback area 0089h set V86 execution mode 008Ah set PM execution mode 008Bh begin using locked PM stack 008Ch end using locked PM stack 008Dh save client state 008Eh restore client state 008Fh execute VxD interrupt 0090h hook device service EAX = service ID (high word = VxD ID, low = service number) ESI -> new handler 0091h hook device V86 API 0092h hook device PM API 0093h system control (see also #1972) 0094h simulate I/O 0095h install multiple I/O handlers 0096h install I/O handler 0097h enable global trapping 0098h enable local trapping 0099h disable global trapping 009Ah disable local trapping 009Bh create list 009Ch destroy list 009Dh allocate list 009Eh attach list 009Fh attach list tail 00A0h insert into list 00A1h remove from list 00A2h deallocate list 00A3h get first item in list 00A4h get next item in list 00A5h remove first item in list 00A6h add instance item 00A7h allocate device callback area 00A8h allocate global V86 data area 00A9h allocate temporary V86 data area 00AAh free temporary V86 data area 00ABh get decimal integer from profile 00ACh convert decimal string to integer 00ADh get fixed-point number from profile 00AEh convert fixed-point string 00AFh get hex integer from profile 00B0h convert hex string to integer 00B1h get boolean value from profile 00B2h convert boolean string 00B3h get string from profile 00B4h get next string from profile 00B5h get environment string 00B6h get exec path 00B7h get configuration directory 00B8h open file 00B9h get PSP segment 00BAh get DOS vectors 00BBh get machine information 00BCh get/set HMA information 00BDh set system exit code 00BEh fatal error handler 00BFh fatal memory error 00C0h update system clock 00C1h test if debugger installed 00C2h output debugger string 00C3h output debugger character 00C4h input debugger character 00C5h debugger convert hex to binary 00C6h debugger convert hex to decimal 00C7h debugger test if valid handle 00C8h validate client pointer 00C9h test reentry 00CAh queue debugger string 00CBh log procedure call 00CCh debugger test current VM 00CDh get PM interrupt type 00CEh set PM interrupt type 00CFh get last updated system time 00D0h get last updated VM execution time 00D1h test if double-byte character-set lead byte 00D2h _AddFreePhysPage 00D3h _PageResetHandlePAddr 00D4h _SetLastV86Page 00D5h _GetLastV86Page 00D6h _MapFreePhysReg 00D7h _UnmapFreePhysReg 00D8h _XchgFreePhysReg 00D9h _SetFreePhysRegCalBk 00DAh get next arena (MCB) 00DBh get name of ugly TSR 00DCh get debug options 00DDh set physical HMA alias 00DEh _GetGlblRng0V86IntBase 00DFh add global V86 data area 00E0h get/set detailed VM error 00E1h Is_Debug_Chr 00E2h clear monochrome screen 00E3h output character to mono screen 00E4h output string to mono screen 00E5h set current position on mono screen 00E6h get current position on mono screen 00E7h get character from mono screen 00E8h locate byte in ROM 00E9h hook invalid page fault 00EAh unhook invalid page fault 00EBh set delete on exit file 0129h "_Register_Win32_Services" 013Fh get start of VxD chain (see also #1972 at INT 2F/AX=1684h/BX=0017h) 0146h "Get_DDB" 0148h "_RegOpenKey" 0149h "_RegCloseKey" 0151h "_RegQueryValueEx" 0191h ...last service for Windows95 SP1 811Ch ??? (called by KEYREMAP.VXD) EAX = service ID (high word = VxD ID, low = service number) ESI -> handler SeeAlso: #0673,INT 2F/AX=1684h/BX=0001h (Table 0673) Values for VPICD (VxD ID 0003h) service number: 00h get version 01h virtualize IRQ 02h set interrupt request 03h clear interrupt request 04h physical EOI 05h get complete status 06h get status 07h test physical request 08h physically mask 09h physically unmask 0Ah set automatic masking 0Bh get IRQ complete status 0Ch convert handle to IRQ 0Dh convert IRQ to interrupt 0Eh convert interrupt to IRQ 0Fh call on hardware interrupt 10h force default owner 11h force default behavior 18h ...last service for Windows95 SP1 SeeAlso: #0672,#0674,INT 2F/AX=1684h/BX=0003h (Table 0674) Values for VDMAD (VxD ID 0004h) service number: 00h get version 01h virtualize channel 02h get region information 03h set region information 04h get virtual state 05h set virtual state 06h set physical state 07h mask channel 08h unmask channel 09h lock DMA region 0Ah unlock DMA region 0Bh scatter lock 0Ch scatter unlock 0Dh reserve buffer space 0Eh request buffer 0Fh release buffer 10h copy to buffer 11h copy from buffer 12h default handler 13h disable translation 14h enable translation 15h get EISA address mode 16h set EISA address mode 17h unlock DMA region (ND) ... 21h ...last service for Windows95 SP1 SeeAlso: #0673,#1969,#1981 at INT 2F/AX=1684h/BX=0444h (Table 0675) Values for VTD (VxD ID 0005h) service number: 0000h get version 0001h update system clock 0002h get interrupt period 0003h begin minimum interrupt period 0004h end minimum interrupt period 0005h disable trapping 0006h enable trapping 0007h get real time Return: EDX:EAX = time in 840ns units since Windows was started 0008h "VTD_Get_Date_And_Time" 0009h ??? 000Ah ...last service for Windows95 SP1 SeeAlso: #1969 at INT 2F/AX=1684h/BX=0005h (Table 0676) Values for V86MMGR (VxD ID 0006h) service number: 00h get version 01h allocate V86 pages 02h set EMS and XMS limits 03h get EMS and XMS limits 04h set mapping information 05h get mapping information 06h Xlat API 07h load client pointer 08h allocate buffer 09h free buffer 0Ah get Xlat buffer state 0Bh set Xlat buffer state 0Ch get VM flat selector 0Dh map pages 0Eh free page map region 0Fh _LocalGlobalReg 10h get page status 11h set local A20 12h reset base pages 13h set available mapped pages 14h "V86MMGR_NoUMBInitCalls" 15h "V86MMGR_Get_EMS_XMS_Avail" 16h "V86MMGR_Toggle_HMA" 17h "V86MMGR_Dev_Init" 18h "V86MMGR_Alloc_UM_Page" SeeAlso: #1969,#0677,INT 2F/AX=1684h"DEVICE API" (Table 0677) Values for PageSwap (VxD ID 0007h) service number: 00h get version 01h test create 02h create swap file 03h destroy swap file 04h in 05h out 06h test if I/O valid 07h "Read_Or_Write" 08h "Grow_File" 09h "Init_File" SeeAlso: #0676,#3349,#0678,#1970 (Table 3349) Values for REBOOT (VxD ID 0009h) service number: 00h ??? 03h ...last service for Windows95 SP1 SeeAlso: #0677,#0678,#1968 (Table 0678) Values for VDD (VxD ID 000Ah) service number: 00h get version 01h PIF state 02h get GrabRtn 03h hide cursor 04h set VM type 05h get ModTime 06h set HCurTrk 07h message clear screen 08h message foreground color 09h message background color 0Ah message output text 0Bh message set cursor position 0Ch query access 0Dh "VDD_Check_Update_Soon" ... 16h ...last service for Windows95 SP1 SeeAlso: #3349,#0679,#1970 (Table 0679) Values for VSD (VxD ID 000Bh) service number: 00h get version 01h bell 02h sound on 03h "VSD_TakeSoundPort" SeeAlso: #0678,#0680 (Table 0680) Values for VMD / VMOUSE (VxD ID 000Ch) service number: 00h get version 01h set mouse type 02h get mouse owner 03h "VMOUSE_Post_Pointer_Message" 04h "VMOUSE_Set_Cursor_Proc" 05h "VMOUSE_Call_Cursor_Proc" 06h "VMOUSE_Set_Mouse_Data~Get_Mouse_Data" 07h "VMOUSE_Manipulate_Pointer_Message" 08h "VMOUSE_Set_Middle_Button" ... 0Bh ...last service for Windows95 SP1 SeeAlso: #0679,#0681,INT 2F/AX=1684h/BX=000Ch (Table 0681) Values for VKD (VxD ID 000Dh) service number: 00h get version 01h define hotkey 02h remove hotkey 03h locally enable hotkey 04h locally disable hotkey 05h reflect hotkey 06h cancel hotkey state 07h force keys 08h get keyboard owner 09h define paste mode 0Ah start pasting 0Bh cancel paste 0Ch get message key 0Dh peek message key 0Eh flush message key queue 14h ...last service for Windows95 SP1 SeeAlso: #0680,#0682 (Table 0682) Values for VCD (VxD ID 000Eh) service number: 00h get version 01h set port global 02h get focus 03h virtualize port ... 0Ch ...last service for Windows95 SP1 SeeAlso: #0681,#0683 (Table 0683) Values for BlockDev/IOS (VxD ID 0010h) service number: 00h get version 01h register device 02h find INT 13 drive 03h get device list 04h send command 05h command complete 06h synchronous command 07h "IOS_Register" 08h "IOS_Requestor_Service" 09h "IOS_Exclusive_Access" 0Ah "IOS_Send_Next_Command" 0Bh "IOS_Set_Async_Time_Out" 0Ch "IOS_Signal_Semaphore_No_Switch" 0Dh "IOSIdleStatus" 0Eh "IOSMapIORSToI24" 0Fh "IOSMapIORSToI21" 10h ...last service for Windows95 SP1 SeeAlso: #0682,#3350 (Table 3350) Values for VMCPD (VxD ID 0011h) service number: 00h "VMCPD_Get_Version" 01h "VMCPD_Get_Virt_State" 02h "VMCPD_Set_Virt_State" ... 08h ...last service for Windows95 SP1 SeeAlso: #0683,#0684,#1968 (Table 0684) Values for EBIOS (VxD ID 0012h) service number: 00h get version 01h get unused memory SeeAlso: #3350,#0685 (Table 0685) Values for VNETBIOS (VxD ID 0014h) service number: 00h get version 01h register 02h submit 03h enum 04h deregister 05h register2 06h map 07h enum2 SeeAlso: #0684,#0686 (Table 0686) Values for DOSMGR (VxD ID 0015h) service number: 00h get version 01h set exec VM data 02h coyp VM drive state 03h execute VM 04h get InDOS pointer 05h add device 06h remove device 07h instance device 08h get DOS critical status 09h enable InDOS polling 0Ah backfill allowed 0Bh "LocalGlobalReg" 0Ch "Init_UMB_Area" 0Dh "Begin_V86_App" 0Eh "End_V86_App" 0Fh "Alloc_Local_Sys_VM_Mem" 10h ??? 11h ??? 12h ...last service for Windows95 SP1 SeeAlso: #0685,#1971 at INT 2F/AX=1684h/BX=0015h (Table 0687) Values for SHELL (VxD ID 0017h) service number: 00h get version 01h resolve contention 02h event 03h SYSMODAL message 04h message 05h get VM information 06h "_SHELL_PostMessage" 07h "_SHELL_WinExec" 08h "_SHELL_CallDll" 09h "SHELL_OpenClipboard" 0Ah "SHELL_SetClipboardData" 0Bh "SHELL_GetClipboardData" 0Ch "SHELL_CloseClipboard" 0Dh "_SHELL_Install_Taskman_Hooks" 0Eh "SHELL_Hook_Properties" 0Fh "SHELL_Unhook_Properties" 10h "SHELL_OEMKeyScan" 11h "SHELL_Update_User_Activity" ... 1Bh ...last service for Windows95 SP1 SeeAlso: #0686,#0688,#1972 at INT 2F/AX=1684h/BX=0017h (Table 0688) Values for VMPoll (VxD ID 0018h) service number: 00h get version 01h enable/disable 02h reset detection 03h check idle SeeAlso: #0675,#1972 at INT 2F/AX=1684h/BX=0017h (Table 0689) Values for DOSNET (VxD ID 001Ah) service number: 00h get version 01h send FILESYSCHANGE 02h do PSP adjust SeeAlso: #0688,#3351 (Table 3351) Values for LoadHi (VxD ID 001Ch) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = minor) ESI -> ASCIZ signature "LoadHi" SeeAlso: #0689,#0690 (Table 0690) Values for Int13 (VxD ID 0020h) service number: 00h get version 01h device registered 02h translate VM interrupt 03h hooking BIOS interrupt 04h unhooking BIOS interrupt SeeAlso: #3351,#0691 (Table 0691) Values for PAGEFILE (VxD ID 0021h) service number: 00h get version 01h init file 02h clean up 03h grow file 04h read or write 05h cancel 06h test I/O valid 07h "Get_Size_Info" 08h "Set_Async_Manager" 09h "Call_Async_Manager" SeeAlso: #0690,#1976 at INT 2F/AX=1684h/BX=0021h (Table 3505) Values for VPOWERD (VxD ID 0026h) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = minor) 01h get APM BIOS version Return: CF clear EAX = APM BIOS version 02h get current power management level Return: CF clear EAX = power management level 03h enable/disable power management (see INT 15/AX=5308h) Return: EAX = error code (see #3506) or 00000000h if successful 04h set power state (see INT 15/AX=5307h) ??? Return: EAX = error code (see #3506) or 00000000h if successful 05h set system power status Return: EAX = error code (see #3506) or 00000000h if successful 06h restore APM power-on defaults (see INT 15/AX=5309h) Return: EAX = error code (see #3506) or 00000000h if successful 07h get power status (see INT 15/AX=530Ah) Return: ??? 08h get APM 1.1 power state (see INT 15/AX=530Ch) Return: ??? 09h invoke OEM APM function ??? -> bufer containing parameters for INT 15/AX=5380h Return: EAX = error code (see #3506) or 00000000h if successful buffer updated if successful 0Ah register power handler ??? Return: EAX = error code (see #3506) or 00000000h if successful 0Bh deregister power handler ??? Return: EAX = error code (see #3506) or 00000000h if successful 0Ch Win32 get system power status 0Dh Win32 set system power status SeeAlso: #0691,#3352,INT 2F/AX=1684h/BX=0026h (Table 3352) Values for VXDLDR (VxD ID 0027h) service number: 00h "VXDLDR_Get_Version" 01h "VXDLDR_LoadDevice" 02h "VXDLDR_UnloadDevice" 03h "VXDLDR_DevInitSucceeded" 04h "VXDLDR_DevInitFailed" 05h "VXDLDR_GetDeviceList" 06h "VXDLDR_UnloadMe" 07h "PELDR_LoadModule" 08h "PELDR_GetModuleHandle" 09h "PELDR_GetModuleUsage" 0Ah "PELDR_GetEntryPoint" 0Bh "PELDR_GetProcAddress" 0Ch "PELDR_AddExportTable" 0Dh "PELDR_RemoveExportTable" 0Eh "PELDR_FreeModule" ... 11h ...last service for Windows95 SP1 SeeAlso: #0691,#3353 (Table 3353) Values for NDIS (VxD ID 0028h) service number: 00h "NdisGetVersion" 01h "NdisAllocateSpinLock" 02h "NdisFreeSpinLock" 03h "NdisAcquireSpinLock" 04h "NdisReleaseSpinLock" 05h "NdisOpenConfiguration" 06h "NdisReadConfiguration" 07h "NdisCloseConfiguration" 08h "NdisReadEisaSlotInformation" 09h "NdisReadMcaPosInformation" 0Ah "NdisAllocateMemory" 0Bh "NdisFreeMemory" 0Ch "NdisSetTimer" 0Dh "NdisCancelTimer" 0Eh "NdisStallExecution" 0Fh "NdisInitializeInterrupt" 10h "NdisRemoveInterrupt" 11h "NdisSynchronizeWithInterrupt" 12h "NdisOpenFile" 13h "NdisMapFile" 14h "NdisUnmapFile" 15h "NdisCloseFile" 16h "NdisAllocatePacketPool" 17h "NdisFreePacketPool" 18h "NdisAllocatePacket" 19h "NdisReinitializePacket" 1Ah "NdisFreePacket" 1Bh "NdisQueryPacket" 1Ch "NdisAllocateBufferPool" 1Dh "NdisFreeBufferPool" 1Eh "NdisAllocateBuffer" 1Fh "NdisCopyBuffer" 20h "NdisFreeBuffer" 21h "NdisQueryBuffer" 22h "NdisGetBufferPhysicalAddress" 23h "NdisChainBufferAtFront" 24h "NdisChainBufferAtBack" 25h "NdisUnchainBufferAtFront" 26h "NdisUnchainBufferAtBack" 27h "NdisGetNextBuffer" 28h "NdisCopyFromPacketToPacket" 29h "NdisRegisterProtocol" 2Ah "NdisDeregisterProtocol" 2Bh "NdisOpenAdapter" 2Ch "NdisCloseAdapter" 2Dh "NdisSend" 2Eh "NdisTransferData" 2Fh "NdisReset" 30h "NdisRequest" 31h "NdisInitializeWrapper" 32h "NdisTerminateWrapper" 33h "NdisRegisterMac" 34h "NdisDeregisterMac" 35h "NdisRegisterAdapter" 36h "NdisDeregisterAdapter" 37h "NdisCompleteOpenAdapter" 38h "NdisCompleteCloseAdapter" 39h "NdisCompleteSend" 3Ah "NdisCompleteTransferData" 3Bh "NdisCompleteReset" 3Ch "NdisCompleteRequest" 3Dh "NdisIndicateReceive" 3Eh "NdisIndicateReceiveComplete" 3Fh "NdisIndicateStatus" 40h "NdisIndicateStatusComplete" 41h "NdisCompleteQueryStatistics" 42h "NdisEqualString" 43h "NdisNetAddressStringToBinary" 44h "NdisReadNetworkAddress" 45h "NdisWriteErrorLogEntry" 46h "C_MapPhysToLinear" 47h "C_HeapFree" 48h "NdisAllocateSharedMemory" 49h "NdisFreeSharedMemory" ... 5Fh ...last service for Windows95 SP1 SeeAlso: #3352,#3354 (Table 3354) Values for VWIN32 (VxD ID 002Ah) service number: 00h "VWin32_Get_Version" 01h "VWin32_Wake_For_Event" 02h "_VWIN32_QueueUserApc" 03h "_VWIN32_Get_Thread_Context" 04h "_VWIN32_Set_Thread_Context" 05h "_VWIN32_CopyMem" 06h "_VWIN32_BlockForTermination" ... 1Ch ...last service for Windows95 SP1 SeeAlso: #3353,#3355 (Table 3355) Values for VCOMM (VxD ID 002Bh) service number: 00h "VCOMM_Get_Version" 01h "_VCOMM_Register_Port_Driver" 02h "_VCOMM_Acquire_Port" 03h "_VCOMM_Release_Port" 04h "_VCOMM_OpenComm" 05h "_VCOMM_SetCommState" 06h "_VCOMM_GetCommState" 07h "_VCOMM_SetupComm" 08h "_VCOMM_TransmitCommChar" 09h "_VCOMM_CloseComm" 0Ah "_VCOMM_GetCommQueueStatus" 0Bh "_VCOMM_ClearCommError" 0Ch "_VCOMM_GetModemStatus" 0Dh "_VCOMM_GetCommProperties" 0Eh "_VCOMM_EscapeCommFunction" 0Fh "_VCOMM_PurgeComm" 10h "_VCOMM_SetCommEventMask" 11h "_VCOMM_GetCommEventMask" 12h "_VCOMM_WriteComm" 13h "_VCOMM_ReadComm" 14h "_VCOMM_EnableCommNotification" 15h "_VCOMM_GetLastError" 16h "_VCOMM_Steal_Port" 17h "_VCOMM_SetReadCallBack" 18h "_VCOMM_SetWriteCallBack" 19h "_VCOMM_GetSetCommTimeouts" 1Ah "_VCOMM_SetWriteRequest" 1Bh "_VCOMM_SetReadRequest" 1Ch "_VCOMM_Dequeue_Request" ... 22h ...last service for Windows95 SP1 SeeAlso: #3354,#3356 (Table 3356) Values for SPOOLER (VxD ID 002Ch) service number: 00h ??? 10h ...last service for Windows95 SP1 SeeAlso: #3355,#3389 (Table 3389) Values for VSERVER (VxD ID 0032h) service number: 00h get VSERVER version Return: CF clear EAX = version (AH = major, AL = minor) EBX = ??? (00000000h) 01h allocate ??? AX = ??? ESI = ??? Return: CF clear if successful CF set on error (table full) 02h NOP??? Return: EBX = 00000000h 03h ??? Return: ZF clear SeeAlso: #3356,#3357,INT 2F/AX=1684h/BX=0032h (Table 3357) Values for CONFIGMG (VxD ID 0033h) service number: 00h ??? 5Ah ...last service for Windows95 SP1 Note: the VxD services appear to be identical to the PM/V86 APIs on INT 2F/AX=1684h SeeAlso: #3389,#3358,INT 2F/AX=1684h/BX=0033h (Table 3461) Values for DWCFGMG.SYS (VxD ID 0034h) service number: 00h "CM_GetVersion" get supported DDI version Return: EAX = 00000000h if not installed else AH = major version number AL = minor version number EBX = number of devices controlled by DWCFGMG.SYS 01h "CM_GetConfig" get device configuration EBX = device index EDI -> buffer for configuration information (see #1980) Return: EAX = status (0000h successful, 0001h index out of range) 02h "CM_LockConfig" lock device configuration EDI -> configuration information (see #1980) Return: EAX = status 0000h successful 0001h resource conflict 0002h invalid request 03h "CM_UnlockConfig" unlock device configuration EDI -> configuration information (see #1980) Return: EAX = status (0000h successful, 0001h invalid request) 04h "CME_QueryResources" 05h "CME_AllocResources" 06h "CME_DeallocResources" SeeAlso: INT 2F/AX=1684h/BX=0034h (Table 3358) Values for VFBACKUP (VxD ID 0036h) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = minor) 05h ...last service for Windows95 SP1 SeeAlso: #3357,#3509 (Table 3509) Values for ENABLE (VxD ID 0037h) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = minor) 01h ??? (performs VMMCall 1800Eh, then falls through to service 04h) Return: EAX = system time??? 02h get current ??? Return: EAX = ??? 03h ??? (schedules a global event via VMMCall 1800Eh) Return: ??? 04h get system time??? (performs VMMCall 100CFh) Return: EAX = system time??? 05h call ??? priority event Return: nothing 06h set ??? / get ??? EDI -> buffer containing data to copy into VxD and space for results Return: EDI buffer updated 07h ??? EBX = ??? flags (bits 2,15,17,18 checked) EDI -> ??? ??? Return: ??? 08h ??? (schedules a global event via VMMCall 1800Eh) Return: ??? 09h get ??? data EDI -> buffer for data (see #3510) Return: EDI buffer updated if large enough SeeAlso: #3358,#3359,#3508 at INT 2F/AX=1684h/BX=0037h Format of ENABLE.VXD ??? data: Offset Size Description (Table 3510) 00h DWORD (ret) length of data, including this word (call) length of buffer 04h DWORD -> 24-byte (or larger) buffer 08h DWORD -> 20-byte buffer 0Ch DWORD -> 260-byte buffer 10h DWORD -> 260-byte buffer SeeAlso: #3509 (Table 3359) Values for VCOND (VxD ID 0038h) service number: 00h get VCOND version Return: CF clear EAX = version (AH = major, AL = minor) 01h ??? SeeAlso: #3511,#3509,#3360 (Table 3511) Values for Windows95 VCOND (Vxd ID 0038h) Win32 service number: 00h get VCOND version Return: EAX = version (AH = major, AL = minor) ... 34h ...last Win32 service for Windows95 SP1 SeeAlso: #3359 (Table 3360) Values for BIOS (VxD ID 003Dh) service number: 00h get version??? 01h ??? 02h ??? 03h ??? SeeAlso: #3359,#3390 (Table 3390) Values for WSOCK (VxD ID 003Eh) service number: 00h get WSOCK version Return: CF clear AH = major version AL = minor version EAX high word = 0000h 01h ??? EAX = ??? or 00000000h Return: CF clear if successful EAX = 00000000h CF set on error EAX = ??? 02h ??? EAX = ??? or 00000000h Return: ??? 03h ??? 04h ...last service for Windows95 SP1 SeeAlso: #3360,#3361 (Table 3361) Values for IFSMGR (VxD ID 0040h) service number: 00h get version 01h "RegisterMount" 02h "RegisterNet" 03h "RegisterMailSlot" 04h "Attach" 05h "Detach" 06h "Get_NetTime" 07h "Get_DOSTime" 08h "SetupConnection" 09h "DerefConnection" 0Ah "ServerDOSCall" 0Bh "CompleteAsync" 0Ch "RegisterHeap" 0Dh "GetHeap" 0Eh "RetHeap" 0Fh "CheckHeap" 10h "CheckHeapItem" 11h "FillHeapSpare" 12h "Block" 13h "Wakeup" 14h "Yield" 15h "SchedEvent" 16h "QueueEvent" 17h "KillEvent" 18h "FreeIOReg" 19h "MakeMailSlot" 1Ah "DeleteMailSlot" 1Bh "WriteMailSlot" 1Ch "PopUp" 1Dh "printf" 1Eh "AssertFailed" 1Fh "LogEntry" 20h "DebugMenu" 21h "DebugVars" 22h "GetDebugString" 23h "GetDebugHexNum" 24h "NetFunction" 25h "DoDelAllUses" 26h "SetErrString" 27h "GetErrString" 28h "SetReqHook" 29h "SetPathHook" 2Ah "UseAdd" 2Bh "UseDel" 2Ch "InitUseAdd" 2Dh "ChangeDir" 2Eh "DelAllUses" 2Fh "CDROM_Attach" 30h "CDROM_Detach" 31h "Win32DupHandle" 32h "Ring0_FileIO" 33h "Toggle_Extended_File_Handle" 34h "IFSMgr_GetDrive_Info" 35h "IFSMgr_Ring0GetDriveInfo" 36h "IFSMgr_BlockNoEvents" 37h "IFSMgr_NetToDosTime" 38h "IFSMgr_DosToNetTime" 39h "IFSMgr_DosToWin32Time" 3Ah "IFSMgr_Win32ToDosTime" 3Bh "IFSMgr_NetToWin32Time" 3Ch "IFSMgr_Win32ToNetTime" 3Dh "IFSMgr_MetaMatch" 3Eh "IFSMgr_TransMatch" 3Fh "IFSMgr_CallProvider" 40h "UniToBCS" 41h "UniToBCSPath" 42h "BCSToUni" 43h "UniToUpper" 44h "UniCharToOEM" 45h "CreateBasis" 46h "MatchBasisName" 47h "AppendBasisTail" 48h "FcbToShort" 49h "ShortToFcb" 4Ah "IFSMgr_ParsePath" 4Bh "Query_PhysLock" 4Ch "_VolFlush" 4Dh "NotifyVolumeArrival" 4Eh "NotifyVolumeRemoval" 4Fh "QueryVolumeRemoval" 50h "IFSMgr_FSDUnmountCFSD" 51h "IFSMgr_GetConversionTablePtrs" 52h "IFSMgr_CheckAccessConflict" 53h "IFSMgr_LockFile" 54h "IFSMgr_UnlockFile" 55h "IFSMgr_RemoveLocks" 56h "IFSMgr_CheckLocks" 57h "IFSMgr_CountLocks" 58h "IFSMgr_ReassignLockFileInst" 59h "IFSMgr_UnassignLockList" 5Ah "IFSMgr_MountChildVolume" 5Bh "IFSMgr_UnmountChildVolume" 5Ch "IFSMgr_SwapDrives" 5Dh "IFSMgr_FSDMapFHtoIOREQ" 5Eh "IFSMgr_FSDParsePath" 5Fh "IFSMgr_FSDAttachSFT" 60h "IFSMgr_GetTimeZoneBias" 61h "IFSMgr_PNPEvent" 62h "IFSMgr_RegisterCFSD" 63h "IFSMgr_Win32MapExtendedHandleToSFT" 64h "IFSMgr_DbgSetFileHandleLimit" 65h "IFSMgr_Win32MapSFTToExtendedHandle" 66h "IFSMgr_FSDGetCurrentDrive" ... 74h ...last service for Windows95 SP1 SeeAlso: #3390,#3362 (Table 3362) Values for VCDFSD (VxD ID 0041h) service number: 00h get VCDFSD version??? 01h ??? 02h ??? 03h ??? SeeAlso: #3361,#3363 (Table 3363) Values for PERF (VxD ID 0048h) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = minor) 01h start performance monitoring??? (creates/sets a registry key) 02h end performance monitoring??? (deletes registry key) 03h start performance monitoring??? (creates/sets a registry key) 04h end performance monitoring??? (deletes registry key) SeeAlso: #3362,#3364 (Table 3364) Values for VFLATD (VxD ID 011Fh) service number: 00h get VFLATD version??? 01h ??? SeeAlso: #3363,#3365 (Table 3365) Values for vjoyd (VxD ID 0449h) service number: 00h get vjoyd version??? 01h ??? SeeAlso: #3364,#3366 (Table 3366) Values for mmdevldr (VxD ID 044Ah) service number: 00h get mmdevldr version??? 01h ??? 02h ??? 03h ??? 04h ??? 05h ??? SeeAlso: #3365,#3367 (Table 3367) Values for VNetSup (VxD ID 0480h) service number: 00h get VNetSup version??? 01h ??? 02h ??? 03h ??? 04h ??? 05h ??? 06h ??? SeeAlso: #3366,#3368 (Table 3368) Values for VREDIR (VxD ID 0481h) service number: 00h ??? 10h ...last service for Windows95 SP1 SeeAlso: #3367,#3369 (Table 3369) Values for VSHARE (VxD ID 0483h) service number: 00h get VSHARE version??? SeeAlso: #3368,#3370 (Table 3370) Values for NWLINK (VxD ID 0487h) service number: 00h ??? 06h ...last service for Windows95 SP1 SeeAlso: #3369,#3371,#1968 (Table 3371) Values for VTDI (VxD ID 0488h) service number: 00h ??? 0Dh ...last service for Windows95 SP1 SeeAlso: #3370,#3372 (Table 3372) Values for VIP (VxD ID 0489h) service number: 00h ??? 08h ...last service for Windows95 SP1 SeeAlso: #3371,#3373 (Table 3373) Values for MSTCP (VxD ID 048Ah) service number: 00h get MSTCP version??? SeeAlso: #3372,#3374 (Table 3374) Values for VCACHE (VxD ID 048Bh) service number: 00h "VCACHE_Get_Version" 01h "VCACHE_Register" 02h "VCACHE_GetSize" 03h "VCACHE_CheckAvail" 04h "VCACHE_FindBlock" 05h "VCACHE_FreeBlock" 06h "VCACHE_MakeMRU" 07h "VCACHE_Hold" 08h "VCACHE_Unhold" 09h "VCACHE_Enum" 0Ah "VCACHE_TestHandle" 0Bh "VCACHE_VerifySums" 0Ch "VCACHE_RecalcSums" 0Dh "VCACHE_TestHold" 0Eh "VCACHE_GetStats" ... 18h ...last service for Windows95 SP1 SeeAlso: #3373,#3375 (Table 3375) Values for NWREDIR (VxD ID 048Eh) service number: 00h get NWREDIR version??? 01h ??? SeeAlso: #3374,#3383 (Table 3383) Values for FILESEC (VxD ID 0491h) service number: 00h ??? 10h ...last service for Windows95 SP1 SeeAlso: #3375,#3387 (Table 3387) Values for NWSERVER (VxD ID 0492h) service number: 00h get NWSERVER version??? 01h ??? 02h ??? 03h ??? SeeAlso: #3383,#3385 (Table 3385) Values for MSSP/NWSP (VxD ID 0493h) service number: 00h ??? 06h ...last service for Windows95 SP1 SeeAlso: #3387,#3376 (Table 3376) Values for NSCL (VxD ID 0494h) service number: 00h get NSCL version??? 01h ??? 02h ??? SeeAlso: #3385,#3503 (Table 3503) Values for AFVXD (VxD ID 0495h) service number: 00h get version Return: CF clear AX = version (AH = high, AL = low) 01h ??? EAX -> ??? EBX -> ??? ECX = ??? Return: ??? 02h ??? EAX -> ??? Return: ??? SeeAlso: #3376,#3386 (Table 3386) Values for NDIS2SUP (VxD ID 0496h) service number: 00h get NDIS2SUP version??? 01h ??? SeeAlso: #3503,#3388 (Table 3388) Values for Splitter (VxD ID 0498h) service number: 00h get Splitter version Return: CF clear EAX = version (00000001h) 01h ??? 02h ??? 03h hook/unhook VMM "hook device service" service EAX = request (0 = unhook, nonzero = hook) Return: if EAX nonzero on entry, Splitter's service 04h replaces VMM service 0090h; otherwise, default handler is restored 04h Splitter "hook device service" handler SeeAlso: #3386,#3377 (Table 3377) Values for PPPMAC (VxD ID 0499h) service number: 00h ??? 09h ...last service for Windows95 SP1 SeeAlso: #3388,#3378,#1968 (Table 3378) Values for VDHCP (VxD ID 049Ah) service number: 00h get VDHCP version??? 01h ??? 02h ??? 03h ??? SeeAlso: #3377,#3379 (Table 3379) Values for VNBT (VxD ID 049Bh) service number: 00h get VNBT version??? SeeAlso: #3378,#3384 (Table 3384) Values for LOGGER (VxD ID 049Dh) service number: 00h get LOGGER version??? 01h ??? 02h ??? 03h ??? 04h ??? SeeAlso: #3379,#3380 (Table 3380) Values for VStlthD (VxD ID 3098h) service number: 00h get version Return: CF clear EAX = version (AH = major, AL = BCD minor) 01h ??? 02h get current ??? Return: CF clear EDX = current value of ??? 03h ??? SeeAlso: #3384,#3391 (Table 3391) Values for WSVV (VxD ID 30F6h) service number: 00h get WSVV version??? SeeAlso: #3380,#3381 (Table 3381) Values for ASPIENUM (VxD ID 33FCh) service number: 00h get ASPIENUM version??? 01h ??? 02h ??? 03h ??? SeeAlso: #3391,#3382 (Table 3382) Values for DSOUND (VxD ID 357Eh) service number: 00h get DSOUND version??? 01h ??? 02h ??? SeeAlso: #3381,#1968 --------G-21--------------------------------- INT 21 - COMTROL HOSTESS i/ISA DEBUGGER - GET SEGMENT FOR CONTROL PROGRAM USE ??? Return: AX = first segment available for control program use SeeAlso: INT 20"COMTROL",INT 22"COMTROL" --------D-2100------------------------------- INT 21 - DOS 1+ - TERMINATE PROGRAM AH = 00h CS = PSP segment Notes: Microsoft recommends using INT 21/AH=4Ch for DOS 2+ this function sets the program's return code (ERRORLEVEL) to 00h execution continues at the address stored in INT 22 after DOS performs whatever cleanup it needs to do (restoring the INT 22,INT 23,INT 24 vectors from the PSP assumed to be located at offset 0000h in the segment indicated by the stack copy of CS, etc.) if the PSP is its own parent, the process's memory is not freed; if INT 22 additionally points into the terminating program, the process is effectively NOT terminated not supported by MS Windows 3.0 DOSX.EXE DOS extender SeeAlso: AH=26h,AH=31h,AH=4Ch,INT 20,INT 22 --------D-2101------------------------------- INT 21 - DOS 1+ - READ CHARACTER FROM STANDARD INPUT, WITH ECHO AH = 01h Return: AL = character read Notes: ^C/^Break are checked, and INT 23 executed if read ^P toggles the DOS-internal echo-to-printer flag ^Z is not interpreted, thus not causing an EOF if input is redirected character is echoed to standard output standard input is always the keyboard and standard output the screen under DOS 1.x, but they may be redirected under DOS 2+ SeeAlso: AH=06h,AH=07h,AH=08h,AH=0Ah --------v-21010F----------------------------- INT 21 - VIRUS - "Susan" - INSTALLATION CHECK AX = 010Fh Return: AX = 7553h ("Su") if resident SeeAlso: INT 16/AH=DDh"VIRUS",INT 21/AX=0B56h --------D-2102------------------------------- INT 21 - DOS 1+ - WRITE CHARACTER TO STANDARD OUTPUT AH = 02h DL = character to write Return: AL = last character output (despite the official docs which state nothing is returned) (at least DOS 2.1-5.0) Notes: ^C/^Break are checked, and INT 23 executed if pressed standard output is always the screen under DOS 1.x, but may be redirected under DOS 2+ the last character output will be the character in DL unless DL=09h on entry, in which case AL=20h as tabs are expanded to blanks if standard output is redirected to a file, no error checks (write- protected, full media, etc.) are performed SeeAlso: AH=06h,AH=09h --------D-2103------------------------------- INT 21 - DOS 1+ - READ CHARACTER FROM STDAUX AH = 03h Return: AL = character read Notes: keyboard checked for ^C/^Break, and INT 23 executed if detected STDAUX is usually the first serial port SeeAlso: AH=04h,INT 14/AH=02h,INT E0/CL=03h --------D-2104------------------------------- INT 21 - DOS 1+ - WRITE CHARACTER TO STDAUX AH = 04h DL = character to write Notes: keyboard checked for ^C/^Break, and INT 23 executed if detected STDAUX is usually the first serial port if STDAUX is busy, this function will wait until it becomes free SeeAlso: AH=03h,INT 14/AH=01h,INT E0/CL=04h --------D-2105------------------------------- INT 21 - DOS 1+ - WRITE CHARACTER TO PRINTER AH = 05h DL = character to print Notes: keyboard checked for ^C/^Break, and INT 23 executed if detected STDPRN is usually the first parallel port, but may be redirected under DOS 2+ if the printer is busy, this function will wait SeeAlso: INT 17/AH=00h --------D-2106------------------------------- INT 21 - DOS 1+ - DIRECT CONSOLE OUTPUT AH = 06h DL = character (except FFh) Return: AL = character output (despite official docs which state nothing is returned) (at least DOS 2.1-5.0) Notes: does not check ^C/^Break writes to standard output, which is always the screen under DOS 1.x, but may be redirected under DOS 2+ SeeAlso: AH=02h,AH=09h --------D-2106--DLFF------------------------- INT 21 - DOS 1+ - DIRECT CONSOLE INPUT AH = 06h DL = FFh Return: ZF set if no character available AL = 00h ZF clear if character available AL = character read Notes: ^C/^Break are NOT checked if the returned character is 00h, the user pressed a key with an extended keycode, which will be returned by the next call of this function this function reads from standard input, which is always the keyboard under DOS 1.x, but may be redirected under DOS 2+ although the return of AL=00h when no characters are available is not documented, some programs rely on this behavior SeeAlso: AH=0Bh --------D-2107------------------------------- INT 21 - DOS 1+ - DIRECT CHARACTER INPUT, WITHOUT ECHO AH = 07h Return: AL = character read from standard input Notes: does not check ^C/^Break standard input is always the keyboard under DOS 1.x, but may be redirected under DOS 2+ if the interim console flag is set (see AX=6301h), partially-formed double-byte characters may be returned SeeAlso: AH=01h,AH=06h,AH=08h,AH=0Ah --------D-2108------------------------------- INT 21 - DOS 1+ - CHARACTER INPUT WITHOUT ECHO AH = 08h Return: AL = character read from standard input Notes: ^C/^Break are checked, and INT 23 executed if detected standard input is always the keyboard under DOS 1.x, but may be redirected under DOS 2+ if the interim console flag is set (see AX=6301h), partially-formed double-byte characters may be returned SeeAlso: AH=01h,AH=06h,AH=07h,AH=0Ah,AH=64h"DOS 3.2+" --------D-2109------------------------------- INT 21 - DOS 1+ - WRITE STRING TO STANDARD OUTPUT AH = 09h DS:DX -> '$'-terminated string Return: AL = 24h (the '$' terminating the string, despite official docs which state that nothing is returned) (at least DOS 2.1-5.0 and NWDOS) Notes: ^C/^Break are checked, and INT 23 is called if either pressed standard output is always the screen under DOS 1.x, but may be redirected under DOS 2+ under the FlashTek X-32 DOS extender, the pointer is in DS:EDX SeeAlso: AH=02h,AH=06h"OUTPUT" --------D-210A------------------------------- INT 21 - DOS 1+ - BUFFERED INPUT AH = 0Ah DS:DX -> buffer (see #0692) Return: buffer filled with user input Notes: ^C/^Break are checked, and INT 23 is called if either detected reads from standard input, which may be redirected under DOS 2+ if the maximum buffer size (see #0692) is set to 00h, this call returns immediately without reading any input SeeAlso: AH=0Ch,INT 2F/AX=4810h Format of DOS input buffer: Offset Size Description (Table 0692) 00h BYTE maximum characters buffer can hold 01h BYTE (call) number of chars from last input which may be recalled (ret) number of characters actually read, excluding CR 02h N BYTEs actual characters read, including the final carriage return --------K-210A00----------------------------- INT 21 - WCED v1.6+ - INSTALLATION CHECK AX = 0A00h DS:DX -> 6-byte buffer whose first two bytes must be 00h Return: buffer offset 02h-05h filled with "Wced" if installed Program: WCED is a free command-line editor and history utility by Stuart Russell SeeAlso: AH=FFh"CED" --------D-210B------------------------------- INT 21 - DOS 1+ - GET STDIN STATUS AH = 0Bh Return: AL = status 00h if no character available FFh if character is available Notes: ^C/^Break are checked, and INT 23 is called if either pressed standard input is always the keyboard under DOS 1.x, but may be redirected under DOS 2+ if the interim console flag is set (see AX=6301h), this function returns AL=FFh if a partially-formed double-byte character is available SeeAlso: AH=06h"INPUT",AX=4406h --------v-210B56----------------------------- INT 21 - VIRUS - "Perfume" - INSTALLATION CHECK AX = 0B56h Return: AX = 4952h if resident SeeAlso: AX=0D20h,INT 12/AX=4350h/BX=4920h,INT 13/AH=F2h,INT 21/AX=010Fh --------D-210C------------------------------- INT 21 - DOS 1+ - FLUSH BUFFER AND READ STANDARD INPUT AH = 0Ch AL = STDIN input function to execute after flushing buffer other registers as appropriate for the input function Return: as appropriate for the specified input function Note: if AL is not one of 01h,06h,07h,08h, or 0Ah, the buffer is flushed but no input is attempted SeeAlso: AH=01h,AH=06h"INPUT",AH=07h,AH=08h,AH=0Ah --------D-210D------------------------------- INT 21 - DOS 1+ - DISK RESET AH = 0Dh Return: (DOS 6 only) CF clear (earlier versions preserve CF) Notes: This function writes all modified disk buffers to disk, but does not update the directory information (that is only done when files are closed or a SYNC call is issued) SeeAlso: AX=5D01h,INT 13/AH=00h,INT 2F/AX=1120h --------v-210D20----------------------------- INT 21 - VIRUS - "Crazy Imp" - INSTALLATION CHECK AX = 0D20h Return: AX = 1971h if resident SeeAlso: AX=0B56h,AX=1812h,AX=2C2Ch,AX=710Dh,AH=30h/DX=ABCDh --------D-210E------------------------------- INT 21 - DOS 1+ - SELECT DEFAULT DRIVE AH = 0Eh DL = new default drive (00h = A:, 01h = B:, etc) Return: AL = number of potentially valid drive letters Notes: under Novell NetWare, the return value is always 32, the number of drives that NetWare supports under DOS 3.0+, the return value is the greatest of 5, the value of LASTDRIVE= in CONFIG.SYS, and the number of drives actually present on a DOS 1.x/2.x single-floppy system, AL returns 2 since the floppy may be accessed as either A: or B: otherwise, the return value is the highest drive actually present DOS 1.x supports a maximum of 16 drives, 2.x a maximum of 63 drives, and 3+ a maximum of 26 drives under Novell DOS 7, this function returns the correct LASTDRIVE value even when the undocumented LASTDRIVE=27..32 directive was used in CONFIG.SYS SeeAlso: AH=19h,AH=3Bh,AH=DBh --------v-210E--DLAD------------------------- INT 21 U - Novell DOS 7 - SDRes v27.03 - INSTALLATION CHECK AH = 0Eh DL = ADh Return: AL = BAh if installed Program: SDRes is the resident portion of the Search&Destroy antiviral by Fifth Generation Systems, as bundled with Novell DOS 7 Note: SDRes will terminate programs which test for the presence of viruses using interrupt-based installation calls, saying that the program may be infected SeeAlso: AH=0Eh/DL=AEh,AH=0Eh/DL=AFh,AH=4Ah/BX=00B6h,INT 13/AX=A759h --------v-210E--DLAE------------------------- INT 21 U - Novell DOS 7 - SDRes v27.03 - CLEAR ??? FLAG AH = 0Eh DL = AEh SeeAlso: AH=0Eh/DL=ADh,AH=0Eh/DL=AFh,INT 13/AX=A759h --------v-210E--DLAF------------------------- INT 21 U - Novell DOS 7 - SDRes v27.03 - SET ??? FLAG AH = 0Eh DL = AFh SeeAlso: AH=0Eh/DL=ADh,AH=0Eh/DL=AEh,INT 13/AX=A759h --------D-210F------------------------------- INT 21 - DOS 1+ - OPEN FILE USING FCB AH = 0Fh DS:DX -> unopened File Control Block (see #0693,#0694) Return: AL = status 00h successful FFh file not found or access denied Notes: (DOS 3.1+) file opened for read/write in compatibility mode an unopened FCB has the drive, filename, and extension fields filled in and all other bytes cleared not supported by MS Windows 3.0 DOSX.EXE DOS extender DR DOS checks password attached with AX=4303h (FAT32 drive) this function will only succeed for creating a volume label; FAT32 does not support FCBs for file I/O BUG: APPEND for DOS 3.3+ corrupts DX if the file is not found SeeAlso: AH=10h,AH=16h,AH=3Dh,AX=4303h Format of File Control Block: Offset Size Description (Table 0693) 00h BYTE drive number (0 = default, 1 = A, etc) FFh is not allowed (signals extended FCB, see #0694) 01h 8 BYTEs blank-padded file name 09h 3 BYTEs blank-padded file extension 0Ch WORD current block number 0Eh WORD logical record size 10h DWORD file size 14h WORD date of last write (see #1006 at AX=5700h) 16h WORD time of last write (see #1005 at AX=5700h) (DOS 1.1+) 18h 8 BYTEs reserved (see #0695,#0696,#0697,#0698,#0699) 20h BYTE record within current block 21h DWORD random access record number (if record size is > 64 bytes, high byte is omitted) SeeAlso: #0694 Format of Extended File Control Block (XFCB): Offset Size Description (Table 0694) 00h BYTE FFh signature for extended FCB 01h 5 BYTEs reserved 06h BYTE file attribute if extended FCB 07h 36 BYTEs standard FCB (all offsets are shifted by seven bytes) SeeAlso: #0653 Format of FCB reserved field for DOS 1.0: Offset Size Description (Table 0695) 16h WORD location in directory (if high byte = FFh, low byte is device ID) 18h WORD number of first cluster in file 1Ah WORD current absolute cluster number on disk 1Ch WORD current relative cluster number within file (0 = first cluster of file, 1 = second cluster, etc.) 1Eh BYTE dirty flag (00h = not dirty) 1Fh BYTE unused Format of FCB reserved field for DOS 1.10-1.25: Offset Size Description (Table 0696) 18h BYTE bit 7: set if logical device bit 6: not dirty bits 5-0: disk number or logical device ID 19h WORD starting cluster number on disk 1Bh WORD current absolute cluster number on disk 1Dh WORD current relative cluster number within file 1Fh BYTE unused Format of FCB reserved field for DOS 2.x: Offset Size Description (Table 0697) 18h BYTE bit 7: set if logical device bit 6: set if open??? bits 5-0: ??? 19h WORD starting cluster number on disk 1Bh WORD ??? 1Dh BYTE ??? 1Eh BYTE ??? 1Fh BYTE ??? Format of FCB reserved field for DOS 3.x: Offset Size Description (Table 0698) 18h BYTE number of system file table entry for file 19h BYTE attributes bits 7,6: 00 = SHARE.EXE not loaded, disk file 01 = SHARE.EXE not loaded, character device 10 = SHARE.EXE loaded, remote file 11 = SHARE.EXE loaded, local file or device bits 5-0: low six bits of device attribute word ---SHARE.EXE loaded, local file--- 1Ah WORD starting cluster of file on disk 1Ch WORD (DOS 3.x) offset within SHARE of sharing record (see #0978 at AH=52h) 1Eh BYTE file attribute 1Fh BYTE ??? ---SHARE.EXE loaded, remote file--- 1Ah WORD number of sector containing directory entry (see #0700) 1Ch WORD relative cluster within file of last cluster accessed 1Eh BYTE absolute cluster number of last cluster accessed 1Fh BYTE ??? ---SHARE.EXE not loaded--- 1Ah BYTE (low byte of device attribute word AND 0Ch) OR open mode 1Bh WORD starting cluster of file 1Dh WORD number of sector containing directory entry (see #0700) 1Fh BYTE number of directory entry within sector Note: if FCB opened on character device, DWORD at 1Ah is set to the address of the device driver header, then the BYTE at 1Ah is overwritten. SeeAlso: #0987 Format of FCB reserved field for DOS 5.0: Offset Size Description (Table 0699) 18h BYTE number of system file table entry for file 19h BYTE attributes bits 7,6: 00 = SHARE.EXE not loaded, disk file 01 = SHARE.EXE not loaded, character device 10 = SHARE.EXE loaded, remote file 11 = SHARE.EXE loaded, local file or device bits 5-0: low six bits of device attribute word ---SHARE.EXE loaded, local file--- 1Ah WORD starting cluster of file on disk 1Ch WORD unique sequence number of sharing record 1Eh BYTE file attributes 1Fh BYTE unused??? ---SHARE.EXE loaded, remote file--- 1Ah WORD network handle 1Ch DWORD network ID ---SHARE not loaded, local device--- 1Ah DWORD pointer to device driver header (see #0987) 1Eh 2 BYTEs unused??? ---SHARE not loaded, local file--- 1Ah BYTE extra info bit 7: read-only attribute from SFT bit 6: archive attribute from SFT bits 5-0: high bits of sector number 1Bh WORD starting cluster of file 1Dh WORD low word of sector number containing directory entry (see #0700) 1Fh BYTE number of directory entry within sector --------!---Section--------------------------