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Text File | 1993-03-12 | 20.5 KB | 582 lines

; SCCSID = @(#)vdmbios.inc 6.1 92/03/25 ;*** VDMBIOS.INC ; ; ; MVDM ROM BIOS Data Definitions ; Copyright (c) IBM Corporation 1987, 1992 ; ; All Rights Reserved ;*** Low memory/ROM and EBIOS defines - used by VBIOS ;*** BIOS Interrupt Vectors ; BIOSINT_PARITYCHECK EQU 002h BIOSINT_PRINTSCREEN EQU 005h BIOSINT_TIMERINTERRUPT EQU 008h BIOSINT_KEYINTERRUPT EQU 009h BIOSINT_COM2INTERRUPT EQU 00Bh BIOSINT_COM1INTERRUPT EQU 00Ch BIOSINT_LPT2INTERRUPT EQU 00Dh BIOSINT_FLOPPYINTERRUPT EQU 00Eh BIOSINT_LPT1INTERRUPT EQU 00Fh BIOSINT_VIDEO EQU 010h BIOSINT_EQUIPMENTCHECK EQU 011h BIOSINT_MEMORYCHECK EQU 012h BIOSINT_DISKIO EQU 013h BIOSINT_COMIO EQU 014h BIOSINT_OSHOOK EQU 015h BIOSINT_KEYBOARD EQU 016h BIOSINT_PRINTERIO EQU 017h BIOSINT_ROMBASIC EQU 018h BIOSINT_REBOOT EQU 019h BIOSINT_TIMEOFDAY EQU 01Ah BIOSINT_KEYBREAK EQU 01Bh BIOSINT_CLOCKTICK EQU 01Ch BIOSINT_VIDEOPARMS EQU 01Dh BIOSINT_DISKPARMS EQU 01Eh BIOSINT_VIDEOGRAPH EQU 01Fh BIOSINT_OLDDISKIO EQU 040h BIOSINT_HDISK1PARMS EQU 041h BIOSINT_OLDVIDEO EQU 042h BIOSINT_EXTVIDEOGRAPH EQU 043h BIOSINT_HDISK2PARMS EQU 046h ;*** Int 10h Equates (AH values) ; INT10_SETMODE EQU 000h INT10_SETCURSORTYPE EQU 001h INT10_SETCURSORPOS EQU 002h INT10_QUERYCURSORPOS EQU 003h INT10_QUERYLPEN EQU 004h INT10_SETACTIVEPAGE EQU 005h INT10_SCROLLUP EQU 006h INT10_SCROLLDOWN EQU 007h INT10_READCHARATTR EQU 008h INT10_WRITECHARATTR EQU 009h INT10_WRITECHAR EQU 00Ah INT10_SETPALETTE EQU 00Bh INT10_WRITEPIXEL EQU 00Ch INT10_READPIXEL EQU 00Dh INT10_WRITETTY EQU 00Eh INT10_QUERYMODE EQU 00Fh INT10_EGASETPALETTE EQU 010h INT10_EGASELECTFONT EQU 011h INT10_EGASELECTMISC EQU 012h INT10_EGAWRITESTRING EQU 013h INT10_VGADISPLAYCODES EQU 01Ah INT10_VGAQUERYSTATE EQU 01Bh INT10_VGASAVERESTORE EQU 01Ch ;*** Int 13h Equates (AH values) ; INT13_DISKRESET EQU 000h INT13_DISKSTATUS EQU 001h INT13_READSECTORS EQU 002h INT13_WRITESECTORS EQU 003h INT13_VERIFYSECTORS EQU 004h INT13_FORMATTRACK EQU 005h INT13_QUERYDRVPARMS EQU 008h INT13_DISKSEEK EQU 00Ch ;@235 INT13_QUERYDASDTYPE EQU 015h INT13_QUERYCHANGE EQU 016h INT13_SETDISKTYPE EQU 017h INT13_SETMEDIATYPE EQU 018h ;*** Int 13h Status Equates (return in AH) ; INT13STATUS_SUCCESS EQU 000h ;successful completion INT13STATUS_BADCMD EQU 001h ;bad command INT13STATUS_BADADDRMARK EQU 002h ;address mark not found INT13STATUS_WRTPROTECT EQU 003h ;write on write-protected disk INT13STATUS_RECNOTFOUND EQU 004h ;sector not found INT13STATUS_BADRESET EQU 005h ;reset failed INT13STATUS_MEDIACHANGE EQU 006h ;media changed INT13STATUS_INITFAIL EQU 007h ;parm. act. failed INT13STATUS_BADDMA EQU 008h ;DMA overrun INT13STATUS_DMABOUNDARY EQU 009h ;DMA across 64K boundary INT13STATUS_BADSECTOR EQU 00ah ;bad sector detected INT13STATUS_BADTRACK EQU 00bh ;bad track detected INT13STATUS_BADMEDIATYPE EQU 00ch ;unsupported track INT13STATUS_BADFMTSECNUM EQU 00dh ;bad # of sectors on format INT13STATUS_ADDRMARKDET EQU 00eh ;ctrl data addr mark detected (HD INT13STATUS_DMAARBERR EQU 00fh ;DMA arbitration error INT13STATUS_BADCRCECC EQU 010h ;bad CRC/ECC INT13STATUS_DATACORRECT EQU 011h ;data ECC corrected INT13STATUS_BADCNTLR EQU 020h ;controller failure INT13STATUS_BADSEEK EQU 040h ;seek failed INT13STATUS_TIMEOUT EQU 080h ;time out INT13STATUS_DRVNOTREADY EQU 0aah ;drive not ready INT13STATUS_UNDEFERR EQU 0bbh ;undefined error INT13STATUS_WRITEFAULT EQU 0cch ;write fault INT13STATUS_STATUSERROR EQU 0e0h ;status register error INT13STATUS_SENSEFAIL EQU 0ffh ;sense operation failed ;*** Int 15h Equates (AH values) ; INT15AH_KEYINTERCEPT EQU 04fh INT15AH_KEYSYSREQ EQU 085h INT15AH_DEVBUSY EQU 090h INT15AH_INTCOMPLETE EQU 091h ;*** Int 15h Equates (AL values) ; INT15AL_DISKETTE EQU 001h INT15AL_KEYBOARD EQU 002h ;*** Int 16h Equates (AH values) ; INT16_READCHAR EQU 000h INT16_PEEKCHAR EQU 001h INT16_QUERYSHIFT EQU 002h INT16_SETDELAYS EQU 003h INT16_WRITECHAR EQU 005h INT16_READEXTCHAR EQU 010h INT16_PEEKEXTCHAR EQU 011h INT16_QUERYEXTSHIFT EQU 012h INT16_READ122CHAR EQU 020h INT16_PEEK122CHAR EQU 021h INT16_QUERY122SHIFT EQU 022h ;*** Diskette Parameter Table (pointed by vector BIOSINT_DISKPARMS (1Eh)) ; DefStruc ,fdparmtable_s _BYTE fdp_bSpecify1 ;step-rate, head-unload _BYTE fdp_bSpecify2 ;head-load, DMA mode _BYTE fdp_bMotorOff ;motor-off delay _BYTE fdp_bSectorSize ;bytes/sec (0=128,1=256,2=512,3=1024) _BYTE fdp_nLastSector ;(or think of it as # sectors/track) _BYTE fdp_lenGapRW ; _BYTE fdp_lenData ; _BYTE fdp_lenGapFormat ; _BYTE fdp_bFormatData ;format initialization byte _BYTE fdp_bSettle ;head settle time _BYTE fdp_bMotorOn ;motor start-up time EndStruc FDPARMTABLE DefType PFDPARMTABLE,dd ;pointer to diskette parameter table ;*** Fixed Disk Parameter Table ; DefStruc ,hdparmtable_s _WORD hdp_wMaxCylinders ;maximum number of cylinders _BYTE hdp_bMaxHeads ;maximum number of heads _WORD hdp_wReserve1 ;reserved (not used) _WORD hdp_wWritePrecompCyl ;starting write precompensation cyl. _BYTE hdp_bMaxECCDataBurstLen ;maximum ECC data burst length _BYTE hdp_bControl ;control byte _BYTE hdp_abReserve2,,3 ;reserved (not used) _WORD hdp_wLandingZone ;landing zone for head parking _BYTE hdp_bSectorsPerTrack ;number of sectors per track _BYTE hdp_bReserve3 ;reserved for future use EndStruc HDPARMTABLE DefType PHDPARMTABLE,dd ;pointer to hard disk parameter table ;*** Hard disk parameter - control byte bit mask ; HDPCTRL_DISABLERETRY EQU 0c0h ;disable retries HDPCTRL_EXCEED8HEADS EQU 008h ;more than 8 heads ;*** Model byte equates (located at F000:FFFE in actual ROM) ; ROMMODEL_PC1 EQU 00FFh ;PC-1, Expansion, Old PC2 ROMMODEL_PC2 EQU 00FEh ;PC-2, Newer ROMMODEL_JR EQU 00FDh ;HALO ROMMODEL_AT EQU 00FCh ;Salmon (PC-3) ;*** ROM format ; ROMHDR_SIGNATURE EQU 0AA55h ROMHDR_INCR EQU 2048 BLOCKSIZE EQU 512 BLOCKSPERPAGE EQU (PAGESIZE / BLOCKSIZE) DefStruc ,romhdr_s _WORD romhdr_wSignature ;should be ROMHDR_SIGNATURE _BYTE romhdr_bnBlocks ;# of ROM blocks _BYTE romhdr_abFiller,,ROMHDR_INCR-3 EndStruc ROMHDR DefType PROMHDR,dd ;*** ROM BIOS Data Area ; DefStruc ,romdata_s VPVOID rb_avpIVT,,IVT_LEN/4 ;interrupt vector table ;*** Start of ROM BIOS Data Areas (0400h) ; _WORD rb_awCOM,,4 ;RS232_BASE (addresses of serial cards) _WORD rb_awLPT,,4 ;PRINTER_BASE (addresses of printer cards) _WORD rb_fsEquip ;EQUIP_FLAG (installed hardware) BIOSEQUIP_FLOPPY EQU 000001h ;machine has a floppy BIOSEQUIP_X87 EQU 000002h ;X87=1 if coprocessor installed BIOSEQUIP_VIDEOMASK EQU 000030h ;video configuration bits BIOSEQUIP_COLOR40VIDEO EQU 000010h ; BIOSEQUIP_COLOR80VIDEO EQU 000020h ; BIOSEQUIP_MONOVIDEO EQU 000030h ; BIOSEQUIP_FLOPPYMASK EQU 0000C0h ;# floppies-1 (if IPLDISK=1) BIOSEQUIP_COMMASK EQU 000E00h ;# COM ports BIOSEQUIP_PRINTERMASK EQU 00C000h ;# LPT ports BBOOL rb_bfMfgTest ;MFG_TST (initialization flag) _WORD rb_wMemSize ;MEMORY_SIZE (memory size in Kbytes) BBOOL rb_bfMfgError,,2 ;MFG_ERR_FLAG (scratchpad for manufacturing) ;*** Start of keyboard data area (0417h) ; _BYTE rb_fbKFlag ;KB_FLAG (keyboard shift states) BIOSKFLAG_RIGHTSHIFT EQU 001h BIOSKFLAG_LEFTSHIFT EQU 002h BIOSKFLAG_SHIFTMASK EQU 003h BIOSKFLAG_CTRL EQU 004h BIOSKFLAG_ALT EQU 008h BIOSKFLAG_SCROLLLOCK EQU 010h BIOSKFLAG_NUMLOCK EQU 020h BIOSKFLAG_CAPSLOCK EQU 040h BIOSKFLAG_INSERT EQU 080h _BYTE rb_fbKFlag1 ;KB_FLAG_1 (second byte of keyboard status) BIOSKFLAG1_LEFTCTRL EQU 001h ;left CTRL down BIOSKFLAG1_LEFTALT EQU 002h ;left ALT down BIOSKFLAG1_SYSSHIFT EQU 004h ;SysReq pressed and held BIOSKFLAG1_HOLDSTATE EQU 008h ;Ctrl-NumLock has been pressed BIOSKFLAG1_SCROLLDOWN EQU 010h BIOSKFLAG1_NUMDOWN EQU 020h BIOSKFLAG1_CAPSDOWN EQU 040h BIOSKFLAG1_INSDOWN EQU 080h _BYTE rb_bKAlt ;ALT_INPUT (storage for Alt-keypad entry) _WORD rb_npKHead ;BUFFER_HEAD (advanced at task-time) _WORD rb_npKTail ;BUFFER_TAIL (advanced at interrupt-time) _WORD rb_abKBuf,,16 ;KB_BUFFER ;*** Start of floppy data area (043Eh) ; _BYTE rb_fbFSeekStatus ;SEEK_STATUS BIOSSEEK_DRV0NORECAL EQU 001h BIOSSEEK_DRV1NORECAL EQU 002h BIOSSEEK_DRV2NORECAL EQU 004h BIOSSEEK_DRV3NORECAL EQU 008h BIOSSEEK_DRVINTERRUPT EQU 080h _BYTE rb_fbFMotorStatus ;MOTOR_STATUS BIOSMOTOR_DRV0RUNNING EQU 001h BIOSMOTOR_DRV1RUNNING EQU 002h BIOSMOTOR_DRV2RUNNING EQU 004h BIOSMOTOR_DRV3RUNNING EQU 008h BIOSMOTOR_DRVSELECT EQU 030h BIOSMOTOR_WRTOPERATION EQU 080h _BYTE rb_bFMotorCount ;MOTOR_COUNT _BYTE rb_bFStatus ;DISKETTE_STATUS _BYTE rb_abFCtlStatus,,7 ;NEC_STATUS (also CMD_BLOCK and HD_ERROR) ;*** Start of video data area (0449h) ; _BYTE rb_bVMode ;CRT_MODE BIOSVMODE_BW40 EQU 000h BIOSVMODE_CO40 EQU 001h BIOSVMODE_BW80 EQU 002h BIOSVMODE_CO80 EQU 003h BIOSVMODE_CO320X200X4 EQU 004h BIOSVMODE_BW320X200X4 EQU 005h BIOSVMODE_CO640X200X2 EQU 006h BIOSVMODE_MONO80 EQU 007h BIOSVMODE_PCJR1 EQU 008h BIOSVMODE_PCJR2 EQU 009h BIOSVMODE_PCJR3 EQU 00Ah BIOSVMODE_COLRFONT EQU 00Bh BIOSVMODE_MONOFONT EQU 00Ch BIOSVMODE_CO320X200X16 EQU 00Dh BIOSVMODE_CO640X200X16 EQU 00Eh BIOSVMODE_MONO640X350X4 EQU 00Fh BIOSVMODE_CO640X350X16 EQU 010h BIOSVMODE_CO640X480X2 EQU 011h BIOSVMODE_CO640X480X16 EQU 012h BIOSVMODE_CO320X200X256 EQU 013h _WORD rb_nVCols ;CRT_COLS _WORD rb_wVLen ;CRT_LEN _WORD rb_wVStart ;CRT_START _WORD rb_awVCursorPos,,8 ;CURSOR_POSN _WORD rb_wVCursorMode ;CURSOR_MODE _BYTE rb_bVPage ;ACTIVE_PAGE _WORD rb_wVPort ;ADDR_6845 _BYTE rb_bVModeByte ;CRT_MODE_SET _BYTE rb_bVPalByte ;CRT_PALETTE ;*** Start of POST data area (0467h) ; VPVOID rb_vpRomInit ;IO_ROM_INIT and IO_ROM_SEG BBOOL rb_fInterrupt ;INTR_FLAG ;*** Start of timer data area (046Ch) ; ULONG rb_ulTickCount ;TIMER_LOW and TIMER_HIGH _BYTE rb_bTickOverflow ;TIMER_OFL ;*** Start of system data area (0471h) ; BBOOL rb_fBreak ;BIOS_BREAK BIOSBREAK_SET EQU 080h SBOOL rb_fReset ;RESET_FLAG BIOSRESET_WARMBOOT EQU 01234h ;*** Start of hard disk data area (0474h) ; _BYTE rb_bDStatus ;DISK_STATUS1 (fixed disk status byte) _BYTE rb_nDTotal ;HF_NUM (count of fixed disk drives) _BYTE rb_bDControl ;CONTROL_BYTE (control byte drive options) _BYTE rb_bDPortOffset ;PORT_OFF (port offset) ;*** Start of COM and LPT time-out data area (0478h) ; _BYTE rb_abLPTtimeout,,4 ;PRINT_TIM_OUT _BYTE rb_abCOMtimeout,,4 ;RS232_TIM_OUT ;*** Start of additional keyboard data area (0480h) ; _WORD rb_npKBufStart ;BUFFER_START _WORD rb_npKBufEnd ;BUFFER_END ;*** Start of EGA/VGA data area (0484h) ; _BYTE rb_nVRows ;ROWS (# rows-1) _WORD rb_nVCharHeight ;POINTS (height of char in pixels) _BYTE rb_bVInfo ;INFO BIOSVINFO_NOEMULATE EQU 001h ;(controls cursor emulation) BIOSVINFO_EGAMONO EQU 002h ; BIOSVINFO_WAITRETRC EQU 004h ; BIOSVINFO_EGAINACTIVE EQU 008h ; BIOSVINFO_MEMMASK EQU 060h ;(00=64k, 01=128k, 10=192k, 11=256k) BIOSVINFO_DONTCLEAR EQU 080h ;(don't clear screen on resets) _BYTE rb_bVSwitches ;INFO_3 BIOSVSW_SW1OFF EQU 001h BIOSVSW_SW2OFF EQU 002h BIOSVSW_SW3OFF EQU 004h BIOSVSW_SW4OFF EQU 008h BIOSVSW_FEATUREBITS EQU 0F0h _BYTE rb_bVFlags ;Flags (for VGA and MCGA) BIOSVFLAGS_VGAACTIVE EQU 001h BIOSVFLAGS_GRAYSCALES EQU 002h BIOSVFLAGS_VGAMONO EQU 004h BIOSVFLAGS_NODEFPALETTE EQU 008h BIOSVFLAGS_DSPSWITCHING EQU 040h BIOSVFLAGS_350INES EQU 000h BIOSVFLAGS_400INES EQU 010h BIOSVFLAGS_200INES EQU 080h BIOSVFLAGS_RESRVDLINES EQU 090h ;*** Reserved area (048Ah) ; _BYTE rb_bReserved1,,1 ;reserved ;*** Start of additional diskette data area (048Bh) ; _BYTE rb_bFLastRate ;LASTRATE ;*** Start of additional hard disk data area (048Ch) ; _BYTE rb_bDStatusReg ;HF_STATUS _BYTE rb_bDErrorReg ;HF_ERROR BBOOL rb_fDInterrupt ;HF_INT_FLAG BBOOL rb_fDCombo ;HF_CNTRL (combo hard disk/diskette card) ;*** Start of additional diskette data area (0490h) ; _BYTE rb_bF0State ;DSK_STATE (drive 0 media state) _BYTE rb_bF1State ; (drive 1 media state) _BYTE rb_bF0StartState ; (drive 0 operation start state) _BYTE rb_bF1StartState ; (drive 1 operation start state) _BYTE rb_bF0Cyl ;DSK_TRK (drive 0 current cylinder) _BYTE rb_bF1Cyl ; (drive 1 current cylinder) ;*** Start of additional keyboard data area (0496h) ; _BYTE rb_fbKFlag3 ;KB_FLAG_3 BIOSKFLAG3_E1PREFIX EQU 001h ;supported BIOSKFLAG3_SECPREFIX EQU 002h ;supported BIOSKFLAG3_RIGHTCTRL EQU 004h ;right CTRL down BIOSKFLAG3_RIGHTALT EQU 008h ;right ALT down BIOSKFLAG3_KBX EQU 010h ;supported BIOSKFLAG3_SETNUMLOCK EQU 020h ;supported BIOSKFLAG3_LASTID EQU 040h ;supported BIOSKFLAG3_READINGID EQU 080h ;supported (we never SET it though!) _BYTE rb_fbKFlag2 ;KB_FLAG_2 BIOSKFLAG2_LEDS EQU 007h ;supported BIOSKFLAG2_ACK EQU 010h ;supported BIOSKFLAG2_RESEND EQU 020h ;supported BIOSKFLAG2_LEDUPDATE EQU 040h ;always clear BIOSKFLAG2_XMITERROR EQU 080h ;always clear ;*** Start of real-time CMOS clock data area (0498h) ; VPVOID rb_vpWaitFlag ;USER_FLAG and USER_FLAG_SEG ULONG rb_ulWaitFlag ;RTC_LOW and RTC_HIGH BBOOL rb_fWaitActive ;RTC_WAIT_FLAG _BYTE rb_bReserved2,,7 ;this should "ORG" us to 04A8h ;*** Start of additional EGA/VGA data area (04A8h) ; VPVOID rb_vpVideoPtrTable ;*** Format of VideoPtrTable: ; ; VPVOID[0] Parameter Table Pointer ; Initialized to BIOS Video Parameter Table. ; This value MUST exist. For a VGA, the table is: ; ; _BYTE Value for CRT_COLS ; _BYTE Value for ROWS ; _BYTE Value for POINTS ; _WORD Value for CRT_LEN ; _BYTE*4 Values for SEQ registers 1-4 ; _BYTE Value for Miscellaneous Output register ; _BYTE*25 Values for CRT registers 0-18h ; _BYTE*20 Values for ATC registers 0-13h ; _BYTE*9 Values for GDC registers 0-8 ; ; VPVOID[1] Parameter Save Area Pointer ; Initialized to 0000:0000, this value is optional. ; When non-zero, this pointer will be used as pointer ; to a RAM area where certain dynamic values are to ; be saved. When in EGA operation this RAM area will ; hold the 16 EGA palette register values plus ; the overscan value in bytes 00h-10h respectively. ; At least 256 bytes must be allocated for this area. ; ; VPVOID[2] Alpha Character Set Override Pointer ; Initialized to 0000:0000, this value is optional. ; When non-zero, this pointer is used as a pointer ; to a tables described as follows: ; ; _BYTE Bytes/character ; ; _BYTE Block to load, should be zero for normal ; operation ; ; _WORD Count to store, should be 256 for normal ; operation ; ; _WORD Character offset, should be zero for normal ; operation ; ; VPVOID Pointer to a font table ; ; _BYTE Displayable rows ; if 'FF' the maximum calculated value will be ; used, else this value will be used ; ; _BYTE Consecutive bytes of mode values for which ; this font description is to be used. ; The end of this stream is indicated by a ; byte code of 'FF' ; ; VPVOID[3] Graphics Character Set Override Pointer ; Initialized to 0000:0000, this value is optional. ; When non-zero, this pointer is used as a pointer ; to a tables described as follows: ; ; _BYTE Displayable rows ; ; _WORD Bytes per character ; ; VPVOID Pointer to a font table ; ; _BYTE Consecutive bytes of mode values for which ; this font description is to be used. ; The end of this stream is indicated by a ; byte code of 'FF' ; ; VPVOID[4] Address of Secondary Video Pointer Table (VGA ONLY): ; ; _WORD Length of this table, in bytes ; VPVOID Pointer to Display Combination Code Table ; VPVOID Pointer to second Alpha Character Set Override ; VPVOID Pointer to User Palette Profile Table ; VPVOID Reserved ; VPVOID Reserved ; VPVOID Reserved ; ; VPVOID[5] Reserved and set to 0000:0000. ; ; VPVOID[6] Reserved and set to 0000:0000. ; _BYTE rb_bReserved3,,054h ;this should "ORG" us to 0500h ;*** Extra data area (0500h) ; _BYTE rb_bPrtScrStatus ;STATUS_BYTE EndStruc ROMDATA DefType PROMDATA,dd VDMBase equ <ds:[0]> .errnz (size romdata_s NE 0501h)