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Interrupt List, part 10 of 15 Copyright (c) 1989,1990,1991,1992,1993,1994,1995,1996 Ralf Brown --------m-2F4300----------------------------- INT 2F - EXTENDED MEMORY SPECIFICATION (XMS) v2+ - INSTALLATION CHECK AX = 4300h Return: AL = 80h XMS driver installed AL <> 80h no driver Notes: XMS gives access to extended memory and noncontiguous/nonEMS memory above 640K this installation check DOES NOT follow the format used by other software SeeAlso: AX=4310h Index: installation check;XMS version 2+ --------m-2F4308----------------------------- INT 2F U - HIMEM.SYS v2.77+ - GET A20 HANDLER NUMBER AX = 4308h Return: AL = 43h if supported BL = A20 handler number (value of /MACHINE:nn switch) BH = AT A20 switch time (00h medium, 01h fast, 02h slow) Note: if the A20 handler number returned in BL is 00h, an external handler is being used (see AX=4330h) SeeAlso: AX=4309h,AX=4330h --------m-2F4309----------------------------- INT 2F U - HIMEM.SYS v3.09+ - GET XMS HANDLE TABLE AX = 4309h Return: AL = 43h if function supported ES:BX -> XMS handle table (see #1976) Note: HIMEM.SYS v3.09 is part of MS-DOS 6.0. SeeAlso: AX=4308h Format of XMS handle table: Offset Size Description (Table 1976) 00h BYTE ??? (01h in HIMEM.SYS v3.09) 01h BYTE size of one handle descriptor 02h WORD number of handles (default = 20h) 04h DWORD pointer to XMS handle array (see #1977) SeeAlso: #2006 Format of XMS handle descriptor [array]: Offset Size Description (Table 1977) 00h BYTE flag 01h=free, 02h=used, 04h=in pool but not associated with any EMB 01h BYTE lock count (00h=unlocked) 02h DWORD address of XMS block in KB (shift left by 10 for abs. address) 06h DWORD size of XMS block in KB --------m-2F4310----------------------------- INT 2F - EXTENDED MEMORY SPECIFICATION (XMS) v2+ - GET DRIVER ADDRESS AX = 4310h Return: ES:BX -> driver entry point (see #1978,#1979,#1982,#1989,#1998,#2003) Notes: HIMEM.SYS v2.77 chains to previous handler if AH is not 00h or 10h HIMEM.SYS requires at least 256 bytes free stack space when calling the driver entry point SeeAlso: AX=4300h,AX=4310h"Cloaking",AX=4310h"Netroom",AX=4310h"XMZ" Format of XMS driver entry point: Offset Size Description (Table 1978) 00h 5 BYTEs jump to actual handler either short jump (EBh XXh) followed by three NOPs or far jump (EAh XXXX:XXXX) to a program which has hooked itself into the XMS driver chain Note: to hook into the XMS driver chain, a program should follow the chain of far jumps until it reaches the short jump of the driver at the end of the chain; this short jump is to be replaced with a far jump to the new handler's entry point, which should contain a short jump followed by three NOPs. The new handler must return to the address pointed at by the short jump which was overwritten. Using this method, the new handler becomes the first to see every XMS request. (Table 1979) Call the XMS driver "Get XMS version number" function with: AH = 00h Return: AX = XMS version (in BCD, AH=major, AL=minor) BX = internal revision number (in BCD for HIMEM.SYS) DX = High Memory Area (HMA) state 0001h HMA (1M to 1M + 64K) exists 0000h HMA does not exist SeeAlso: #1980,#1981,#1986,#1987,#1993 (Table 1980) Call the XMS driver "Request High Memory Area" function with: AH = 01h DX = memory in bytes (for TSR or device drivers) FFFFh if application program Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,90h,91h,92h) (see #2004) Note: HIMEM.SYS will fail function 01h with error code 91h if AL=40h and DX=KB free extended memory returned by last call of function 08h SeeAlso: #1981,#2013 (Table 1981) Call the XMS driver "Release High Memory Area" function with: AH = 02h Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,90h,93h) (see #2004) SeeAlso: #1980 (Table 1982) Call the XMS driver "Global enable A20, for using the HMA" function with: AH = 03h Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,82h) (see #2004) SeeAlso: #1983,#1984 (Table 1983) Call the XMS driver "Global disable A20" function with: AH = 04h Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,82h,94h) (see #2004) SeeAlso: #1982,#1985 (Table 1984) Call the XMS driver "Local enable A20" function with: AH = 05h Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,82h) (see #2004) Note: this function is used for direct access to extended memory SeeAlso: #1982,#1985 (Table 1985) Call the XMS driver "Local disable A20" function with: AH = 06h Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,82h,94h) (see #2004) SeeAlso: #1983,#1984 (Table 1986) Call the XMS driver "Query A20 state" function with: AH = 07h Return: AX = status 0001h enabled 0000h disabled BL = error code (00h,80h,81h) (see #2004) SeeAlso: #1979,#1987 (Table 1987) Call the XMS driver "Query free extended memory" function with: AH = 08h BL = 00h (some implementations leave BL unchanged on success) Return: AX = size of largest extended memory block in KB DX = total extended memory in KB BL = error code (00h,80h,81h,A0h) (see #2004) Note: this function does not include the HMA in the returned memory sizes SeeAlso: #1979,#1986,#1988,#2000 (Table 1988) Call the XMS driver "Allocate extended memory block" function with: AH = 09h DX = Kbytes needed Return: AX = status 0001h success DX = handle for memory block 0000h failure BL = error code (80h,81h,A0h) (see #2004) SeeAlso: #1987,#1990,#1993,#1994,#1995,#2001 (Table 1989) Call the XMS driver "Free extended memory block" function with: AH = 0Ah DX = handle of block to free Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,A2h,ABh) (see #2004) SeeAlso: #1988,#2001 (Table 1990) Call the XMS driver "Move extended memory block" function with: AH = 0Bh DS:SI -> EMM structure (see #2005) Return: AX = status 0001h success 0000h failure BL = error code (80h-82h,A3h-A9h) (see #2004) Note: if either handle in the EMM structure is 0000h, the corresponding offset is considered to be an absolute segment:offset address in directly addressable memory SeeAlso: #1988,#1991 (Table 1991) Call the XMS driver "Lock extended memory block" function with: AH = 0Ch DX = handle of block to lock Return: AX = status 0001h success DX:BX = 32-bit physical address of locked block 0000h failure BL = error code (80h,81h,A2h,ACh,ADh) (see #2004) Note: MS Windows 3.x rejects this function for handles allocated after Windows started SeeAlso: #1988,#1990,#1992 (Table 1992) Call the XMS driver "Unlock extended memory block" function with: AH = 0Dh DX = handle of block to unlock Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,A2h,AAh) (see #2004) SeeAlso: #1991 (Table 1993) Call the XMS driver "Get handle information" function with: AH = 0Eh DX = handle for which to get info Return: AX = status 0001h success BH = block's lock count BL = number of free handles left DX = block size in KB 0000h failure BL = error code (80h,81h,A2h) (see #2004) BUG: MS Windows 3.10 acts as though unallocated handles are in use Note: MS Windows 3.00 has problems with this call SeeAlso: #1979,#1988,#2002 (Table 1994) Call the XMS driver "Reallocate extended memory block" function with: AH = 0Fh DX = handle of block BX = new size of block in KB Return: AX = status 0001h success 0000h failure BL = error code (80h,81h,A0h-A2h,ABh) (see #2004) SeeAlso: #1988,#1997 (Table 1995) Call the XMS driver "Request upper memory block" function with: AH = 10h DX = size of block in paragraphs Return: AX = status 0001h success BX = segment address of UMB DX = actual size of block 0000h failure BL = error code (80h,B0h,B1h) (see #2004) DX = largest available block Notes: Upper Memory consists of non-EMS memory between 640K and 1024K the XMS driver need not implement functions 10h through 12h to be considered compliant with the standard under DOS 5+, if CONFIG.SYS contains the line DOS=UMB, then no upper memory blocks will be available for allocation because all blocks have been grabbed by MS-DOS while booting SeeAlso: #1988,#1996,#2014,INT 21/AH=58h"UMB" (Table 1996) Call the XMS driver "Release upper memory block" function with: AH = 11h DX = segment address of UMB to release Return: AX = status 0001h success 0000h failure BL = error code (80h,B2h) (see #2004) Note: the XMS driver need not implement functions 10h through 12h to be considered compliant with the standard SeeAlso: #1989,#1995,#1997 (Table 1997) Call the XMS v3.0+ driver "Reallocate upper memory block" function with: AH = 12h DX = segment address of UMB to resize BX = new size of block in paragraphs Return: AX = status 0001h success 0000h failure BL = error code (80h,B0h,B2h) (see #2004) DX = maximum available size (RM386) Note: the XMS driver need not implement functions 10h through 12h to be considered compliant with the standard SeeAlso: #1994,#1995,#1996,#2012 (Table 1998) Call the QEMM v5.11 "???" function with: AH = 34h (QEMM 5.11 only, undocumented) ??? Return: ??? SeeAlso: #1999 (Table 1999) Call the QEMM v5.11 "???" function with: AH = 44h (QEMM 5.11 only, undocumented) ??? Return: ??? SeeAlso: #1998,#2012 (Table 2000) Call the XMS v3.0 driver "Query free extended memory" function with: AH = 88h Return: EAX = largest block of extended memory, in KB BL = status (00h,80h,81h,A0h) (see #2004) ECX = physical address of highest byte of memory (valid even on error codes 81h and A0h) EDX = total Kbytes of extended memory (0 if status A0h) BUG: HIMEM v3.03-3.07 crash on an 80286 machine if any of the 8Xh functions are called SeeAlso: #1987,#2001 (Table 2001) Call the XMS v3.0 driver "Allocate any extended memory" function with: AH = 89h EDX = Kbytes needed Return: AX = status 0001h success DX = handle for allocated block (free with AH=0Ah) (see #1989) 0000h failure BL = status (80h,81h,A0h,A1h,A2h) (see #2004) SeeAlso: #1988,#2000 (Table 2002) Call the XMS v3.0 driver "Get extended EMB handle information" function with: AH = 8Eh DX = handle Return: AX = status 0001h success BH = block's lock count CX = number of free handles left EDX = block size in KB 0000h failure BL = status (80h,81h,A2h) (see #2004) BUG: MS-DOS 6.0 HIMEM.SYS leaves CX unchanged SeeAlso: #1993,#2001,#2003 (Table 2003) Call the XMS v3.0 driver "Reallocate any extended memory block" function with: AH = 8Fh DX = unlocked memory block handle EBX = new size in KB Return: AX = status 0001h success 0000h failure BL = status (80h,81h,A0h-A2h,ABh) (see #2004) BUG: HIMEM v3.03-3.07 crash on an 80286 machine if any of the 8Xh functions are called SeeAlso: #1994,#2002 (Table 2004) Values for XMS error code returned in BL: 00h successful 80h function not implemented 81h Vdisk was detected 82h an A20 error occurred 8Eh a general driver error 8Fh unrecoverable driver error 90h HMA does not exist or is not managed by XMS provider 91h HMA is already in use 92h DX is less than the /HMAMIN= parameter 93h HMA is not allocated 94h A20 line still enabled A0h all extended memory is allocated A1h all available extended memory handles are allocated A2h invalid handle A3h source handle is invalid A4h source offset is invalid A5h destination handle is invalid A6h destination offset is invalid A7h length is invalid A8h move has an invalid overlap A9h parity error occurred AAh block is not locked ABh block is locked ACh block lock count overflowed ADh lock failed B0h only a smaller UMB is available B1h no UMB's are available B2h UMB segment number is invalid Format of EMM structure: Offset Size Description (Table 2005) 00h DWORD number of bytes to move (must be even) 04h WORD source handle 06h DWORD offset into source block 0Ah WORD destination handle 0Ch DWORD offset into destination block Notes: if source and destination overlap, only forward moves (source base less than destination base) are guaranteed to work properly if either handle is zero, the corresponding offset is interpreted as a real-mode address referring to memory directly addressable by the processor Format of XMS handle info [array]: Offset Size Description (Table 2006) 00h BYTE handle 01h BYTE lock count 02h DWORD handle size 06h DWORD handle physical address (only valid if lock count nonzero) SeeAlso: #1976 --------m-2F4310----------------------------- INT 2F - Cloaking - REAL-MODE API AX = 4310h Return: ES:BX -> driver entry point (see #1978,#2007,#2008,#2009,#2010) SeeAlso: AX=4310h"XMS" (Table 2007) Call the Cloaking v1.01 "Client Registration" function with: AH = 7Eh BX = subfunction 0000h get client registration count 0001h get client registration structures ES:DI -> buffer for registration structures Return: AX = status 0000h failed 0001h successful ---subfunction 00h--- BX = size of client structure in bytes CX = number of clients installed ---subfunction 01h--- ES:DI buffer filled SeeAlso: #2008,#2010,INT 2C/AX=0033h (Table 2008) Call the Cloaking v1.01 "Verify Cloaking Host" function with: AH = 7Fh Return: AX = status 0000h failed 0001h (successful) if installed BX = version (0101h for v1.01) CX = flags bit 0: host is VCPI-based DS:DX -> ASCIZ Cloaking host signature "CLOAKING.EXE"0, followed by a far-call entry point to uninstall host (see #2009) in Helix's CLOAKING.EXE SeeAlso: #2007,#2010 Index: installation check;Cloaking host|installation check;CLOAKING.EXE (Table 2009) Call the CLOAKING.EXE "Uninstall Host" function with: Return: AX = 4F4Bh ('OK') if successfully uninstalled protected-mode code (Table 2010) Call the Cloaking "Start Protected-Mode Client" function with: AH = 82h DX = XMS handle of locked block containing protected-mode code CL = code size (00h 16-bit, else 32-bit) ESI, EDI = parameters to pass to protected-mode code Return: AX = status nonzero success 0000h failed BL = error code (A2h,B0h) (see #2004) Notes: this function calls a user initialization function at offset 0 in the XMS memory block (see #2011) supported by Helix's RM386 v6.00 and Helix's CLOAKING.EXE SeeAlso: #2007,#2008 (Table 2011) Values user initialization function is called with: EBX = physical address of block's start ESI = user data from function 82h call EDI = user data from function 82h call CS = code selector for XMS block at EBX (16-bit or 32-bit) DS = data selector for XMS block, starting at EBX ES = selector for V86 memory access to full real-mode 1088K GS = selector for full 4G flat address space SS:ESP -> stack provided by host Return: via 32-bit FAR return Note: the initialization function may call any protected-mode Cloaking service; it should store the values of DS, ES, and GS for future reference --------m-2F4310----------------------------- INT 2F - Helix Netroom RM386 v6.00 - XMS EXTENSIONS AX = 4310h Return: ES:BX -> driver entry point (see #2012,#2013,#2014,#2015) Notes: HIMEM.SYS v2.77 chains to previous handler if AH is not 00h or 10h HIMEM.SYS requires at least 256 bytes free stack space when calling the driver entry point SeeAlso: AX=4300h,AX=4310h"XMS",AX=4310h"Cloaking" (Table 2012) Call the Netroom RM386 v6.00 "Reallocate upper memory block" function with: AH = 80h DX = segment address of UMB to resize BX = new size of block in paragraphs Return: AX = status 0001h success 0000h failure BL = error code (80h,B0h,B2h) (see #2004) DX = maximum available size Note: this function is identical to function 12h SeeAlso: #1997,#2013 (Table 2013) Call the Netroom RM386 v6.00 "re-enable HMA allocation" function with: AH = 81h Return: AX = 0001h (success) SeeAlso: #1980,#2012,#2014 (Table 2014) Call the Netroom RM386 v6.00 "Create new UMB entry" function with: AH = 83h BX = segment of high-memory block DX = first page of start of block CX = number of consecutive pages in block DI = start of UMB in block Return: AX = 0001h (success) DI = segment of first high-DOS block Note: the new UMB is not linked into the high-memory chain SeeAlso: #1995,#2013,#2015 (Table 2015) Call the Netroom RM386 v6.00 "Get all XMS handles info" function with: AH = 84h CX = size of buffer for handle info ES:DI -> buffer for handle info (see #2006) Return: AX = 0001h (success) DX = current number of allocated XMS handles SeeAlso: #2014,#2000 --------m-2F4310----------------------------- INT 2F - NEC PC-9800 - XMZ - PRIVATE API AX = 4310h Return: ES:BX -> driver entry point (see #2016,2713) Program: XMZ is an XMS 2.x-compatible driver for the NEC PC-98 series written by ZOBplus Hayami and available at ftp:/ftp.tohoku.ac.jp/pub/msdos/Memory/xmz/ SeeAlso: AX=4300h,AX=4310h"XMS" (Table 2016) Call XMZ v1.02 "Get HMA Information" function with: AH = FFh (XMZ only) AL = 01h Return: AX = 1 on success DX = minimum HMA allocation size (/HMAMIN=) BX = actual size of HMA allocation, if in use (i.e. the value in DX when XMS function 1 was called) SeeAlso: #2017 (Table 2017) Call XMZ v1.02 "Get EMB Handle Information" function with: AH = FFh (XMZ only) AL = 02h Return: AX = 1 on success DX = number of EMB handles configured (/NUMHANDLES=) BX = offset in XMZ's segment of the handle table (use segment of entry point) (see #2018) SeeAlso: #2016 Format of XMZ v1.02 EMB Handle structure: Offset Size Description (Table 2018) 00h BYTE flag byte 04h unused handle slot 02h in-use handle slot 01h handle slot that represents a free block 01h BYTE lock count 02h WORD block start address (1K increments) 04h WORD block length (1K increments) SeeAlso: #2017 --------m-2F4320----------------------------- INT 2F U - HIMEM.SYS - Mach 20 SUPPORT AX = 4320h ??? Return: ??? --------m-2F4330----------------------------- INT 2F CU - HIMEM.SYS v2.77+ - GET EXTERNAL A20 HANDLER ADDRESS AX = 4330h Return: AL = 80h if external A20 handler provided ES:BX -> external A20 handler (see #2019) CL = A20 detection support 00h handler is unable to report A20 state 01h handler supports function 0002h to report A20 state Note: HIMEM.SYS calls this function to allow an external program to provide an A20 handler (i.e. to support a machine not supported by HIMEM itself) SeeAlso: AX=4308h,AX=4310h (Table 2019) Call parameters for external A20 handler are: AX = function 0000h disable A20 0001h enable A20 0002h get A20 state Return: AX = status (functions 0000h and 0001h) 0000h failure 0001h successful AX = A20 state (function 0002h) 0000h disabled 0001h enabled Note: HIMEM.SYS only calls function 0002h if the returned CL indicated that the handler supports the call ----------2F43D6----------------------------- INT 2F - Multiplex - ??? AX = 43D6h Note: Central Point's CPBACKUP v9 calls this function with CX=7FFh and DX=80D3h at startup --------E-2F43E0BX0000----------------------- INT 2F - DOS Protected Mode Services (DPMS) v1.0 - INSTALLATION CHECK AX = 43E0h BX = 0000h CX = 4450h ('DP') DX = 4D53h ('MS') Return: AX = 0000h if installed CF clear ES:DI -> server structure (see #2020) ES:BX -> registration structure (pre-NWDOS 7 beta spec) (see #2022) Note: the DPMS 1.0 server included with the original release of Novell DOS 7.0 supports both the beta and 1.0 specification, setting ES:BX even if CX and DX are not as specified on entry (since the beta specification did not use those registers). However, the DPMS 1.1 server included with the March 1994 update does not support the beta specification SeeAlso: AX=43E1h,AX=43E2h,AX=43E3h,INT 2F/AX=1687h Index: signature strings;DPMS Format of DPMS 1.0 server structure: Offset Size Description (Table 2020) 00h 4 BYTEs signature string "DPMS" 04h 2 BYTEs DPMS version (major,minor) 06h 8 BYTEs blank-padded server OEM name 0Eh 2 BYTEs OEM server version (major,minor) 10h WORD DPMS flags (see #2021) 12h BYTE CPU type (02h = 286, 03h = 386 or higher, higher values allowed) Bitfields for DPMS flags: Bit(s) Description (Table 2021) 0 fast processor reset available (286 only) 1 DPMS server is enabled 2 memory is remapped 3-15 reserved (undefined) Format of beta DPMS registration structure: Offset Size Description (Table 2022) 00h DWORD real-mode API entry point (see #2024) 04h DWORD 16-bit protected-mode API entry point (see #2024) 08h 8 BYTEs reserved (0) 10h 8 BYTEs blank-padded server OEM name 18h WORD flags bit 0: fast processor reset available (286 only) bits 1-15 reserved (undefined) 1Ah 2 BYTEs DPMS version (major,minor) 1Ch BYTE CPU type (02h = 286, 03h = 386 or higher) --------m-2F43E1----------------------------- INT 2F - DOS Protected Mode Services (DPMS) v1.0 - REGISTER CLIENT AX = 43E1h CX = required protected-mode stack size in bytes ES:DI -> DPMS client interface structure (see #2023) Return: AX = 0000h if supported CF clear ES:DI buffer filled with API entry point code from offset 0Ah Note: the client is allowed to copy the returned API code to any location in memory, and need not keep the three code fields together SeeAlso: AX=43E0h,AX=43E2h,AX=43E3h Format of DPMS client interface structure: Offset Size Description (Table 2023) 00h WORD 0000h (structure version / flags) 02h 8 BYTEs blank-padded client name 0Ah 7 BYTEs real/virtual-86 mode API code (see #2024) 11h BYTE space for return instruction set to C3h for near return, CBh for far return 12h 7 BYTEs 16-bit protected-mode API code (see #2024) 19h BYTE space for return instruction set to C3h for near return, CBh for far return 1Ah 9 BYTEs 32-bit protected-mode API code (see #2024) 23h BYTE space for return instruction set to C3h for near return, CBh for far return Note: the DPMS server fills the return opcode bytes with zeros and DPMS requests will thus crash the system unless the application explicitly sets them (some early versions set them to C3h by default, but one should not rely on that) (Table 2024) Call DPMS entry point with: AX = 0000h unregister client from server ---control transfer functions--- AX = 0100h call protected-mode procedure CX = number of words of stack to copy ES:(E)DI -> callup/down register structure (see #2026) Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0101h call real-mode procedure (RETF return) CX = number of words of stack to copy ES:(E)DI -> callup/down register structure (see #2026) Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0102h call real-mode procedure (IRET return) CX = number of words of stack to copy ES:(E)DI -> callup/down register structure (see #2026) Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0103h call real-mode interrupt handler BL = interrupt number CX = number of words of stack to copy ES:(E)DI -> callup/down register structure (see #2026) Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0104h register default protected mode procedure ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0105h register default real-mode procedure (RETF return) ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the procedure will be called from 16-bit prot. mode AX = 0106h register default real-mode procedure (IRET return) ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the procedure will be called from 16-bit prot. mode AX = 0107h register default real-mode interrupt handler BL = interrupt number ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the handler will be called from 16-bit protected mode AX = 0108h register default real-mode procedure (RETF return) ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the procedure will be called from 32-bit prot. mode AX = 0109h register default real-mode procedure (IRET return) ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the procedure will be called from 32-bit prot. mode AX = 010Ah register default real-mode interrupt handler BL = interrupt number ES:(E)DI -> default register structure (see #2027) Return: CF clear if successful CF set on error AX = error code (see #2025) Note: the handler will be called from 32-bit protected mode ---descriptor management--- AX = 0200h allocate descriptors CX = number of descriptors to allocate Return: CF clear if successful AX = selector for first descriptor allocated CF set on error AX = error code (see #2025) AX = 0201h free a descriptor BX = selector for descriptor Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0202h create alias descriptor BX = selector for descriptor to be aliased Return: CF clear if successful AX = alias descriptor CF set on error AX = error code (see #2025) AX = 0203h build alias to real-mode segment BX = descriptor CX = real-mode segment Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0204h set descriptor base BX = descriptor CX:DX = base address Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0205h set descriptor limit BX = descriptor CX = limit Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0206h set descriptor type/attribute BX = descriptor CL = type CH = attribute Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0207h get descriptor base BX = descriptor Return: CF clear if successful CX:DX = base address CF set on error AX = error code (see #2025) ---linear memory functions--- AX = 0300h get size of largest free block of memory Return: CF clear if successful BX:CX = size CF set on error AX = error code (see #2025) AX = 0301h allocate block of extended memory BX:CX = required size Return: CF clear if successful BX:CX = base address SI:DI = handle CF set on error AX = error code (see #2025) AX = 0302h free block of extended memory SI:DI = handle Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0303h map linear memory ES:(E)DI -> DDS (see #2028) Return: CF clear if successful BX:CX = base address SI:DI = handle CF set on error AX = error code (see #2025) AX = 0304h unmap linear memory SI:DI = handle Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0305h get page table entries ESI = linear address (E)CX = count ES:(E)DI -> buffer for page table entries Return: CF clear if successful ES:(E)DI buffer filled CF set on error AX = error code (see #2025) AX = 0306h set page table entries EBX = linear memory handle ESI = linear address (E)CX = count ES:(E)DI -> buffer containing page table entries Return: CF clear if successful CF set on error AX = error code (see #2025) AX = 0307h get largest mappable block size Return: CF clear if successful BX:CX = size CF set on error AX = error code (see #2025) ---miscellaneous--- AX = 0400h relocate segment to extended memory ES:SI = base address CX = limit BL = type BH = attribute DX = selector or 0000h Return: CF clear if successful AX = selector BX:CX = new base address SI:DI = handle CF set on error AX = error code (see #2025) Note: the beta DPMS specification, which is still supported by the Novell DOS 7.0 DPMS host, only supported functions 0100h-0103h, 0200h-0207h, 0300h-0304h, and 0400h (Table 2025) Values for DPMS error code: 8000h general error 8001h unsupported function 8002h unable to switch to protected mode 8004h no default stack defined 8005h unknown client 8010h resource unavailable 8011h descriptor unavailable 8012h linear memory unavailable 8013h physical memory unavailable 8021h invalid value 8022h invalid selector 8023h invalid handle 8025h invalid linear address Format of DPMS callup/down register structure: Offset Size Description (Table 2026) 00h DWORD EDI 04h DWORD ESI 08h DWORD EBP 0Ch 4 BYTEs reserved (0) (ESP, may be used by DPMS server) 10h DWORD EBX 14h DWORD EDX 18h DWORD ECX 20h DWORD EAX 24h DWORD EIP 28h WORD CS 2Ah 2 BYTEs reserved (0) 2Ch DWORD EFLAGS 30h DWORD ESP 34h WORD SS 36h 2 BYTEs reserved (0) 38h WORD ES 3Ah 2 BYTEs reserved (0) 3Ch WORD DS 3Eh 2 BYTEs reserved (0) 40h WORD FS 42h 2 BYTEs reserved (0) 44h WORD GS 46h 2 BYTEs reserved (0) Format of DPMS default register structure: Offset Size Description (Table 2027) 00h DWORD EIP 04h WORD CS 06h 2 BYTEs reserved (0) 08h WORD number of words to copy from stack to stack 0Ah BYTE (call) 00h (ret) nonzero if call could not be made 0Bh BYTE reserved (may be used by some servers) 0Ch DWORD ESP 10h WORD SS 12h 2 BYTEs reserved (0) 14h WORD ES 16h 2 BYTEs reserved (0) 18h WORD DS 1Ah 2 BYTEs reserved (0) 1Ch WORD FS 1Eh 2 BYTEs reserved (0) 20h WORD GS 22h 2 BYTEs reserved (0) 24h 9 BYTEs API entry code (filled in by server) Format of DPMS lock DDS: Offset Size Description (Table 2028) 00h DWORD total size in bytes 04h DWORD offset 08h WORD segment or selector 0Ah WORD reserved 0Ch WORD maximum number of physical blocks structure has space for 0Eh WORD number of physical blocks listed 10h DWORD physical address of first block 14h DWORD size in bytes of first block ... --------m-2F43E2----------------------------- INT 2F - DOS Protected Mode Services (DPMS) v1.0 - ENABLE/DISABLE DPMS AX = 43E2h BX = new state (0000h disable, 0001h enable) Return: AX = 0000h if supported Note: this function should normally be called only by system software SeeAlso: AX=43E0h,AX=43E1h,AX=43E3h --------m-2F43E3BX0000----------------------- INT 2F - DOS Protected Mode Services (DPMS) v1.0 - DPMS STARTUP BROADCAST AX = 43E3h BX = 0000h CX = 4450h ('DP') DX = 4D53h ('MS') SeeAlso: AX=43E0h,AX=43E4h --------m-2F43E4BX0000----------------------- INT 2F - DOS Protected Mode Services (DPMS) v1.0 - DPMS EXIT BROADCAST AX = 43E4h BX = 0000h CX = 4450h ('DP') DX = 4D53h ('MS') SeeAlso: AX=43E0h,AX=43E3h --------E-2F44------------------------------- INT 2F U - DOS Extender support??? AH = 44h AL = function (at least 0Bh, 15h, 17h) ??? Return: ??? Note: called by Codeview for Windows SeeAlso: AH=86h --------G-2F4500----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - INSTALLATION CHECK AX = 4500h Return: AL = installation status 01h if PROF.COM installed 02h if VPROD.386 installed SeeAlso: AX=4501h,AX=4502h --------G-2F4501----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - SETUP PROFILER AX = 4501h BX = CSIPS buffer size in KB (first parameter for ProfSetup) CX = output limit in KB (second parameter for ProfSetup) Note: this call is not supported by PROF.COM SeeAlso: AX=4502h,AX=4503h --------G-2F4502----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - SET SAMPLING RATE AX = 4502h BL = sampling rate for PROF.COM (0 < BL <= 13) (01h = 8192/s, 04h = 1024/s, 08h = 32/s, 0Dh = 1/s) CX = sampling rate for VPROD.386 Note: for PROF.COM, this programs the CMOS clock by setting BL+2 as the low four bits of CMOS register 0Ah. The interruption rate is 1 SHL (15 - BL) per second. SeeAlso: AX=4501h,AX=4503h --------G-2F4503----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - START PROFILING AX = 4503h Notes: Profiling is also turned on by the key combinations LeftShift + RightShift + Alt and LeftShift + RightShift + Ctrl for PROF.COM, this call programs the CMOS clock by reading register 0Ch, and setting bit 6 of register 0Bh. It then makes sure that IRQ8 is unmasked SeeAlso: AX=4504h --------G-2F4504----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - STOP PROFILING AX = 4504h Notes: profiling is also turned off by the key combination LeftShift + RightShift for PROF.COM, this programs the CMOS clock by reading register 0Ch and clearing bit 6 of register 0Bh. It then masks IRQ8. SeeAlso: AX=4503h,AX=4505h,AX=4506h,AX=4507h --------G-2F4505----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - CLEAR PROFILING DATA AX = 4505h SeeAlso: AX=4503h,AX=4504h,AX=4506h --------G-2F4506----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - "ProfFlush" AX = 4506h SeeAlso: AX=4505h,AX=4507h --------G-2F4507----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - "ProfFinish" AX = 4507h Note: this call is essentially a "ProfStop" (AX=4504h) followed by "ProfFlush" (AX=4506h) SeeAlso: AX=4504h,AX=4505h,AX=4506h --------G-2F4508----------------------------- INT 2F U - Microsoft Profiler (PROF.COM/VPROD.386) - ALTERNATE SEGDEBUG IFACE AX = 4508h BX = ordinal (or 0000h) CX = segment DX = instance (or 0000h) SI = type (or 0000h) ES:DI -> ASCIZ module name Notes: this call is an alternate entry to the profiler's SEGDEBUG interface, but only to function 0, for notifying the profiler of each new segment loaded. The SHOWHITS utility then examines the profiler's output files (CSIPS.DAT and SEGENTRY.DAT) in conjunction with symbol files to provide information in a useful form. this call does not have a corresponding Windows function SeeAlso: AX=4500h --------D-2F4601----------------------------- INT 2F CU - MS Windows WINOLDAP - SWITCHING ??? AX = 4601h Return: ??? Note: the DOS 5+ kernel intercepts this function and copies the MCB following the caller's PSP memory block into the DOS data segment; in conjunction with AX=4602h, this intercept is used by DOS to avoid corruption of the Windows real-mode heap's end sentinel SeeAlso: AX=1700h,AX=4602h --------D-2F4602----------------------------- INT 2F CU - MS Windows WINOLDAP - SWITCHING ??? AX = 4602h Return: ??? Note: the DOS 5+ kernel intercepts this function and copies the previously-saved MCB from the DOS data segment into the MCB following the caller's PSP memory block; in conjunction with AX=4601h, this intercept is used by DOS to avoid corruption of the Windows real-mode heap's end sentinel SeeAlso: AX=1700h,AX=4601h --------E-2F46------------------------------- INT 2F U - Windows/286 DOS Extender AH = 46h AL = subfunction (03h,04h) Return: ??? Note: these two subfunctions are called by MS Windows 3.0 --------v-2F4653CX0002----------------------- INT 2F - F-PROT v1.x only - F-LOCK.EXE - API AX = 4653h ('FS') CX = 0002h BX = subfunction 0000h installation check Return: AX = FFFFh 0001h uninstall Return: AX,BX,ES destroyed 0002h disable (v1.08 and below only) 0003h enable (v1.08 and below only) Program: F-LOCK is part of the shareware F-PROT virus/trojan protection package by Fridrik Skulason SeeAlso: AX=4653h/CX=0003h,AX=CA00h,INT 21/AX=4BEEh Index: installation check;F-LOCK|uninstall;F-LOCK --------v-2F4653CX0003----------------------- INT 2F - F-PROT v1.x only - F-XCHK.EXE - API AX = 4653h ('FS') CX = 0003h BX = subfunction 0000h installation check Return: AX = FFFFh 0001h uninstall Return: AX,BX,ES destroyed Program: F-XCHK is part of the shareware F-PROT virus/trojan protection package by Fridrik Skulason SeeAlso: AX=4653h/CX=0002h,AX=4653h/CX=0004h,AX=CA00h Index: installation check;F-XCHK|uninstall;F-XCHK --------v-2F4653CX0004----------------------- INT 2F - F-PROT v1.x only - F-POPUP.EXE - API AX = 4653h ('FS') CX = 0004h BX = subfunction 0000h installation check Return: AX = FFFFh 0001h uninstall Return: AX,BX,ES destroyed 0002h disable (v1.08 and below only) display message (v1.14+) other registers: ??? 0003h enable (v1.08 and below only) display message (v1.14+) other registers: ??? Return: AX = key pressed by user Program: F-POPUP is part of the shareware F-PROT virus/trojan protection package by Fridrik Skulason SeeAlso: AX=4653h/CX=0003h,AX=4653h/CX=0005h,AX=CA00h Index: installation check;F-POPUP|uninstall;F-POPUP --------v-2F4653CX0005----------------------- INT 2F - F-PROT v1.x only - F-DLOCK.EXE - API AX = 4653h ('FS') CX = 0005h BX = subfunction 0000h installation check Return: AX = FFFFh 0001h uninstall Return: AX,BX,ES destroyed Program: F-DLOCK is part of the shareware F-PROT virus/trojan protection package by Fridrik Skulason SeeAlso: AX=4653h/CX=0004h,AX=CA00h Index: installation check;F-DLOCK|uninstall;F-DLOCK ----------2F4653CX0007----------------------- INT 2F - F-PROT v2.x - VIRSTOP - ENABLE/DISABLE BOOTSECTOR READ CHECKING AX = 4653h ('FS') CX = 0007h BL = new state of bootsector checking (01h = disabled) Program: VIRSTOP is the resident virus-checker from Fridrik Skulason's F-PROT virus/trojan protection package ----------2F4653CX0008----------------------- INT 2F - F-PROT v2.x - ??? AX = 4653h ('FS') CX = 0008h ??? Return: ??? Note: called by F-PROT v2.x VIRSTOP ----------2F4653CX0008----------------------- INT 2F - F-PROT v2.x - VIRSTOP - INSTALLATION CHECK AX = 4653h ('FS') CX = 0008h Return: AX = 5346h if installed BX = version??? DS:SI -> ASCIZ name of file containing virus signatures DS:DI -> 80-byte buffer for ??? --------W-2F4680----------------------------- INT 2F U - MS Windows v3.0 - INSTALLATION CHECK AX = 4680h Return: AX = result 0000h MS Windows 3.0 running in real (/R) or standard (/S) mode, or DOS 5 DOSSHELL active nonzero no Windows, Windows prior to 3.0, or Windows3 in enhanced mode Note: Windows 3.1 finally provides an installation check which works in all modes (see AX=160Ah) SeeAlso: AX=1600h,AX=160Ah ----------2F47------------------------------- INT 2F U - ??? AH = 47h ??? Return: ??? Note: reportedly called by Microsoft BASIC Compiler v7.0 --------K-2F4800----------------------------- INT 2F - DOS 5+ DOSKEY - INSTALLATION CHECK AX = 4800h Return: AL = nonzero if installed (DOS 5.0 and 6.0 return AX=AA02h) ES = segment of DOSKEY resident portion Note: DOSKEY chains if AL is not 00h or 10h on entry SeeAlso: AX=4800h"PCED",AX=4810h --------K-2F4800----------------------------- INT 2F - PCED v2.1 - INSTALLATION CHECK AX = 4800h Return: AX = AACDh if installed ES = segment of PCED kernel (PCED has multiple code segments) Program: PCED v2.1 is a command line editor/history/macro facility by Cove Software. It is the commercial version of the freeware CED. Notes: DOSKEY also responds to this call if installed, returning AX=AA02h. unlike DOSKEY, PCED does *not* chain if AL contains an unsupported function code. It IRETs with all registers intact. --------K-2F4810----------------------------- INT 2F - DOS 5+ DOSKEY, PCED v2.1 - READ INPUT LINE FROM CONSOLE AX = 4810h DS:DX -> line buffer (see #0661 at INT 21/AH=0Ah) Return: AX = 0000h if successful Notes: the first byte (length) of the buffer MUST be 80h, or DOSKEY chains to the previous handler; PCED allows sizes other than 80h if the user's input is a macro name, no text is placed in the buffer even though AX=0000h on return; the program must immediately issue this call again to retrieve the expansion of the macro. Similarly, if the user enters a special parameter such as $*, this call must be repeated to retrieve the expansion; on the second call, DOSKEY overwrites the macro name on the screen with its expansion. unlike DOSKEY, PCED expands all macros on the first call, so it is not necessary to make two calls; since the buffer is not empty on return, DOSKEY-aware programs will not make the second call DOSKEY chains if AL is not 00h or 10h on entry SeeAlso: AX=4800h,INT 21/AH=0Ah --------K-2F48C0----------------------------- INT 2F - PCED v2.1 - PCED API AX = 48C0h DX = API function code other registers as required by the specified function Return: CF clear if successful CF set on error AX = PCED error code other registers as appropriate for API function Program: PCED v2.1 is a command line editor/history/macro facility by Cove Software. It is the commercial version of the freeware CED. Note: the full API information is available from Cove Software SeeAlso: AX=4800h"PCED",AX=48C1h,AX=48C2h,AX=48C3h --------U-2F48C1BL00------------------------- INT 2F - PCED/VSTACK - INSTALLATION CHECK AX = 48C1h BL = 00h Return: AX = 0000h if installed BX = VSTACK resident segment Program: VSTACK is a resident backscroll utility included as part of the PCED package by Cove Software Note: chains if BL <> 00h on entry SeeAlso: AX=48C0h,AX=48C2h --------U-2F48C2BL00------------------------- INT 2F - PCED/ATTRIB - INSTALLATION CHECK AX = 48C2h BL = 00h Return: AX = 0000h if installed BX = ATTRIB resident segment Program: ATTRIB is a resident file attribute changer included as part of the PCED package by Cove Software Note: chains if BL <> 00h on entry SeeAlso: AX=48C0h,AX=48C1h,AX=48C3h --------K-2F48C3BL00------------------------- INT 2F - PCED/KEYDEF - INSTALLATION CHECK AX = 48C3h BL = 00h Return: AX = 0000h if installed BX = KEYDEF resident segment Program: KEYDEF is a resident keyboard redefinition utility included as part of the PCED package by Cove Software Note: chains if BL <> 00h on entry SeeAlso: AX=48C0h,AX=48C2h,AX=48C4h --------U-2F48C4BL00------------------------- INT 2F - PCED/FLIST - INSTALLATION CHECK AX = 48C4h BL = 00h Return: AX = 0000h if installed BX = FLIST resident segment Program: FLIST is a resident filelist processor included as part of the PCED package by Cove Software Note: chains if BL <> 00h on entry SeeAlso: AX=48C0h,AX=48C3h,AX=48C5h --------U-2F48C5BL00------------------------- INT 2F - PCED/ASSOC - INSTALLATION CHECK AX = 48C5h BL = 00h Return: AX = 0000h if installed BX = ASSOC resident segment Program: ASSOC is a resident utility included as part of the PCED package which associated files with executable programs based on their extensions Note: chains if BL > 02h on entry SeeAlso: AX=48C0h,AX=48C4h,AX=48C5h/BL=01h,AX=48C5h/BL=02h --------U-2F48C5BL01------------------------- INT 2F - PCED/ASSOC - GET VERSION AX = 48C5h BL = 01h Return: AX = 0000h if installed BX = binary ASSOC version (BL = major, BH = minor) Note: chains if BL > 02h on entry SeeAlso: AX=48C0h,AX=48C5h/BL=00h,AX=48C5h/BL=02h --------U-2F48C5BL02------------------------- INT 2F - PCED/ASSOC - ASSOCIATION TEST AX = 48C5h BL = 02h DS:SI -> ASCIZ filename Return: AX = status 0000h if filename is unknown 0001h if there is an association defined for the file BX destroyed Program: ASSOC is a resident utility included as part of the PCED package which associated files with executable programs based on their extensions Note: chains if BL > 02h on entry SeeAlso: AX=48C0h,AX=48C5h/BL=00h,AX=48C5h/BL=01h ----------2F49------------------------------- INT 2F U - ??? AH = 49h ??? Return: ??? Note: reportedly called by DOS 5.0 installation --------D-2F4A00CX0000----------------------- INT 2F CU - DOS 5+ - FLOPPY-DISK LOGICAL DRIVE CHANGE NOTIFICATION AX = 4A00h CX = 0000h DH = new drive number DL = current drive number Return: CX = FFFFh to skip "Insert diskette for drive X:" message Note: called by MS-DOS 5.0+ IO.SYS just before displaying the message "Insert diskette for drive X:" on single-floppy systems --------D-2F4A01----------------------------- INT 2F - DOS 5+ - QUERY FREE HMA SPACE AX = 4A01h Return: BX = number of bytes available in HMA (0000h if DOS not using HMA) ES:DI -> start of available HMA area (FFFFh:FFFFh if not using HMA) Notes: called by Windows 3.1 DOSX.EXE supported by Novell DOS 7 SeeAlso: AX=4310h,AX=4A02h --------D-2F4A02----------------------------- INT 2F - DOS 5+ - ALLOCATE HMA SPACE AX = 4A02h BX = number of bytes Return: ES:DI -> start of allocated HMA block or FFFFh:FFFFh BX = number of bytes actually allocated (rounded up to next paragraph for DOS 5.0 and 6.0) Notes: this call is not valid unless DOS is loaded in the HMA (DOS=HIGH) called by Windows 3.1 DOSX.EXE supported by Novell DOS 7 SeeAlso: AX=4A01h --------T-2F4A05----------------------------- INT 2F U - DOS 5+ DOSSHELL - TASK SWITCHING API??? AX = 4A05h SI = function 0000h reset??? 0001h ??? ES:BP -> 80-byte buffer containing ??? 0002h ??? 0003h ??? 0004h ??? BL = ??? 0005h ??? 0006h get ??? Return: ES:SI -> ??? 0007h get ??? Return: AX = ??? 0008h get ??? Return: DX:AX -> ??? (internal control data of some kind) 0009h get ??? Return: ES:SI -> ??? (apparently identical to function 0006h) 000Ah ??? BL = length of buffer ES:BP -> buffer containing ??? 000Bh get ??? Return: AX = ??? 000Ch ??? BL = ??? Return: if BL nonzero on entry DX:AX -> ??? if BL = 00h on entry ES:SI -> ??? Notes: DOSSHELL chains to the previous handler if SI is not one of the values listed above the DOSSWAP.EXE module calls functions 03h,04h,05h,07h,08h,09h,0Ch the Windows 3.1 DSWAP.EXE and WSWAP.EXE task switchers use these calls SeeAlso: AX=4B01h --------D-2F4A06----------------------------- INT 2F CU - DOS 5+ - DOS SUPERVISOR "REBOOT PANEL" - ADJUST MEMORY SIZE AX = 4A06h DX = segment following last byte of conventional memory Return: DX = segment following last byte of memory available for use by DOS Desc: used to override the default memory size when booting diskless workstations Notes: called by MS-DOS 5+ IO.SYS startup code if the signature "RPL" is present three bytes beyond the INT 2F handler; this call overrides the value returned by INT 12 hooked by RPL code at the top of memory to protect itself from being overwritten; DOS builds a memory block with owner = 0008h and name "RPL" which must be freed by the RPL code when it is done SeeAlso: INT 12,INT 18 --------N-2F4A07----------------------------- INT 2F U - RESERVED FOR PROTMAN SUPPORT AX = 4A07h ??? Return: ??? --------c-2F4A10BX0000----------------------- INT 2F - SMARTDRV v4.00+ - INSTALLATION CHECK AND HIT RATIOS AX = 4A10h BX = 0000h CX = EBABh (v4.1+; see Note) Return: AX = BABEh if installed DX:BX = cache hits DI:SI = cache misses CX = number of dirty cache elements BP = version in BCD (4.10 = 0410h) Notes: most of the SMARTDRV API, including this call, is supported by PC-Cache v8.0 and recent versions of the Norton Caches if DBLSPACE.BIN is installed but SMARTDRV has not yet been installed, then calls of this function with CX<>EBABh on entry cause DBLSPACE.BIN to display the error message "Cannot run SMARTDrive 4.0 with DoubleSpace" and abort the caller with INT 21/AX=4C00h SMARTDRV v3.x had a completely different API using IOCTL calls, which was also supported by the Norton Caches SeeAlso: AX=4A10h/BX=0001h,AX=4A10h/BX=0004h,AX=4A10h/BX=0005h SeeAlso: AX=4A10h/BX=0007h,AX=4A10h/BX=1234h,AX=4A11h/BX=0000h SeeAlso: INT 21/AX=4402h"SMARTDRV",INT 21/AX=4403h"SMARTDRV" --------c-2F4A10BX0000----------------------- INT 2F U - Novell NWCACHE - ??? AX = 4A10h BX = 0000h CX = 0EDCh ('EDC' = Novell European Development Center) Return: ??? SeeAlso: AX=4A10h/BX=0001h"NWCACHE" --------c-2F4A10BX0001----------------------- INT 2F - SMARTDRV v4.00+ - FLUSH BUFFERS (COMMIT CACHE) AX = 4A10h BX = 0001h Note: this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0002h --------c-2F4A10BX0001----------------------- INT 2F U - Novell NWCACHE - ??? AX = 4A10h BX = 0001h CX = 0EDCh ('EDC' = Novell European Development Center) Return: ??? SeeAlso: AX=4A10h/BX=0000h"NWCACHE" --------c-2F4A10BX0002----------------------- INT 2F - SMARTDRV v4.00+ - RESET CACHE AX = 4A10h BX = 0002h Note: this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0001h --------c-2F4A10BX0003----------------------- INT 2F - SMARTDRV v4.00+ - STATUS AX = 4A10h BX = 0003h BP = drive number (0=A, 1=B, etc.) DL = subfunction 00h only get information 01h turn on read cache 02h turn off read cache 03h turn on write cache 04h turn off write cache ---NWCACHE--- 05h ??? 06h ??? Return: AX = BABEh if OK DL = status (see #2029) DL = FFh if drive does not exist Notes: If the read cache is off, reads will not be cached, but writes will continue to be cached if the write-cache is enabled. this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h Bitfields for SMARTDRV status: Bit(s) Description (Table 2029) 7 not cached 6 write-through (not write-cached) 0-5 real drive number (0=A, 1=B...) --------c-2F4A10BX0004----------------------- INT 2F - SMARTDRV v4.00+ - GET CACHE SIZE AX = 4A10h BX = 0004h Return: AX = size in elements of full-sized cache BX = current size in elements CX = size of one element in bytes DX = number of elements under Windows Note: this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0003h,AX=4A10h/BX=0005h --------c-2F4A10BX0005----------------------- INT 2F - SMARTDRV v4.00+ - GET DOUBLE-BUFFER STATUS AX = 4A10h BX = 0005h BP = drive number (0=A, 1=B...) Return: AX = BABEh if double-buffered ES:DI -> 16-byte array of status bytes for fixed disks (see #2030) SeeAlso: AX=4A10h/BX=0000h,AX=4A10h/BX=0003h,AX=4A10h/BX=0006h (Table 2030) Values for SMARTDRV status byte: 00h state unknown FFh drive double-buffered else not double-buffered --------c-2F4A10BX0006----------------------- INT 2F CU - SMARTDRV v4.00+ - CHECK IF DRIVE CACHEABLE AX = 4A10h BX = 0006h CL = drive number (01h = A:) Return: AX = 0006h if drive should not be cached by SMARTDRV Note: called by SMARTDRV at startup to determine whether it should cache a particular drive SeeAlso: AX=4A10h/BX=0000h --------c-2F4A10BX0007----------------------- INT 2F - SMARTDRV v4.00+ - GET DEVICE DRIVER FOR DRIVE AX = 4A10h BX = 0007h BP = drive number (00h=A:) Return: DL = unit number within device driver ES:DI -> device driver header for drive (see #0953) Note: this function is also supported by PC-Cache v8.0. this call is reported to always return the driver header of the standard block driver (A:-C:+) for SmartDrive v5.00 from MS-DOS 6.2 SeeAlso: AX=4A10h/BX=0000h,AX=4A11h/BX=0003h,AX=4A11h/BX=0004h --------c-2F4A10BX0008----------------------- INT 2F - SMARTDRV v4.20+ - GET/SET FLUSH BEFORE PROMPT, CD-ROM SUPPORT AX = 4A10h BX = 0008h DL = subfunction 00h set DH = new states bit 0: flush before prompt bits 1-7 reserved (0) 01h get Return: DH = status flags bit 0: (v4.2+) flush before prompt bit 1: (v5.0+) CD-ROM caching support installed Note: v4.2 was an interim release to fix problems in the SMARTDRV included with MS-DOS 6.00; v5.00 is included with MS-DOS 6.2 --------c-2F4A10BX000A----------------------- INT 2F - SMARTDRV v4.00+ - GET ELEMENT STATUS TABLE AX = 4A10h BX = 000Ah Return: ES:BX -> information pointer table (see #2031) Note: this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h Format of SMARTDRV information pointer table: Offset Size Description (Table 2031) 00h WORD offset of ??? byte/word array (byte if elements < 2000h bytes) 02h WORD offset of dirty flag byte/word array (byte if elts < 2000h) each byte/word is a bit string of the dirty sectors in element 04h WORD offset of word array containing low halves of unique identifiers for the corresponding element's contents 06h WORD offset of word array containing high halves of unique identifiers for the corresponding element's contents 08h WORD offset of WORD containing current number of elements in cache --------c-2F4A10BX1234----------------------- INT 2F - SMARTDRV v4.00+ - SIGNAL SERIOUS ERROR AX = 4A10h BX = 1234h Desc: this function pops up a message box saying that a serious error occurred and to hit R to retry, then waits for the keypress Note: this function is also supported by PC-Cache v8.0. SeeAlso: AX=4A10h/BX=0000h --------k-2F4A11BX0000----------------------- INT 2F - DBLSPACE.BIN - "GetVersion" - INSTALLATION CHECK AX = 4A11h BX = 0000h Return: AX = 0000h (successful) BX = 444Dh ("DM") CL = first drive letter used by DBLSPACE (41h ['A'] = A:) CH = number of drive letters used by DBLSPACE DX = internal DBLSPACE.BIN version number (bits 14-0) bit 15 set if DBLSPACE.BIN has not yet been relocated to final position in memory (i.e. DBLSPACE.SYS /MOVE) Program: DBLSPACE.BIN is the resident driver for DoubleSpace, the disk-compression software bundled with MS-DOS 6.0 and 6.20 Notes: this function is also supported by the version of SuperStor bundled with IBM DOS 6.x and "preloading" versions of Stacker the complete DBLSPACE.BIN API is still supported by MS-DOS 6.22's DRVSPACE.BIN SeeAlso: AX=4A11h/BX=0001h,AX=4A11h/BX=0002h,AX=4A11h/BX=0003h SeeAlso: AX=4A11h/BX=0005h,AX=4A11h/BX=0007h,AX=4A11h/BX=FFFFh SeeAlso: INT 21/AX=4404h"DBLSPACE" --------k-2F4A11BX0001----------------------- INT 2F - DBLSPACE.BIN - "GetDriveMapping" - GET DRIVE MAPPING AX = 4A11h BX = 0001h DL = drive number (0=A:) Return: AX = status (see also #2032) 0000h successful if DL was compressed drive, BL = host drive (bit 7 set if drive is compressed) else if DL was host drive, BL = compressed drive else BL = specified drive (if available for DoubleSpace) BH = DoubleSpace sequence number other error code (0101h) (see #2032) apparently never returned for the MS-DOS 6.2 DoubleSpace Note: the compressed volume file for the specified compressed drive is host:\DBLSPACE.sequence SeeAlso: AX=4A11h/BX=0000h (Table 2032) Values for DBLSPACE function status: 0000h successful 0100h bad function 0101h invalid drive 0102h not a compressed drive 0103h drive already swapped 0104h drive not swapped --------k-2F4A11BX0002----------------------- INT 2F - DBLSPACE.BIN - "Swap Drive" - SWAP DRIVE LETTERS OF CVF AND HOST DRIVE AX = 4A11h BX = 0002h DL = drive number (0=A:) of compressed drive to swap with its host Return: AX = status (0000h,0101h,0102h,0103h) (see #2032) Note: this function is intended for use by DBLSPACE.EXE only SeeAlso: AX=4A11h/BX=0000h --------k-2F4A11BX0003----------------------- INT 2F - DBLSPACE.BIN - "DSGetEntryPoints" - GET DEVICE DRIVER ENTRY POINTS AX = 4A11h BX = 0003h CL = drive number (0=A:) of compressed drive Return: CL = FFh on error (not compressed drive) CL <> FFh driver unit number of host drive ES:SI -> device driver's strategy routine ES:DI -> device driver's interrupt routine BX destroyed Note: in conjunction with subfunction 0004h, this call allows disk caches like SMARTDRV to apply a device driver wrapper to DoubleSpaced drives just like SMARTDRV applies to regular block devices SeeAlso: AX=4A10h/BX=0007h,AX=4A11h/BX=0000h,AX=4A11h/BX=0004h --------k-2F4A11BX0004----------------------- INT 2F - DBLSPACE.BIN - "DSSetEntryPoints" - SET DEVICE DRIVER ENTRY POINTS AX = 4A11h BX = 0004h CL = drive number (0=A:) of compressed drive DL = unit number for new driver entry points DH = 00h ES:SI -> device driver strategy routine to call for drive ES:DI -> device driver interrupt routine to call for drive Return: CL = FFh on error (not a compressed drive) BX destroyed Program: DBLSPACE.BIN is the resident driver for DoubleSpace, the disk-compression software bundled with MS-DOS 6.0 Note: in conjunction with subfunction 0003h, this call allows disk caches like SMARTDRV to apply a device driver wrapper to DoubleSpaced drives just like SMARTDRV applies to regular block devices SeeAlso: AX=4A10h/BX=0007h,AX=4A11h/BX=0000h,AX=4A11h/BX=0003h --------k-2F4A11BX0005----------------------- INT 2F - DBLSPACE.BIN - "ActivateDrive" - MOUNT COMPRESSED DRIVE AX = 4A11h BX = 0005h DL = drive number (0=A:) to assign to new drive ES:SI -> activation record (see #2033) Return: status returned in activation record (see #2034) SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0006h Format of DBLSPACE activation record: Offset Size Description (Table 2033) 00h 2 BYTEs signature "MD" (4Dh 44h) 02h BYTE 4Dh ('M') mount command 03h BYTE error code (set to FFh before calling) (see #2034) 04h BYTE host drive number (0=A:) 05h ??? DISK_UNIT structure (not documented) (Table 2034) Values for DBLSPACE Mount error code: 00h successful 01h drive letter not available for DoubleSpace 02h drive letter already in use 03h no more disk units (increase MaxRemovableDrives in .INI) 09h CVF too fragmented --------k-2F4A11BX0006----------------------- INT 2F - DBLSPACE.BIN - "DeactivateDrive" - UNMOUNT COMPRESSED DRIVE AX = 4A11h BX = 0006h DL = drive number (0=A:) to unmount Return: AX = status (0000h,0102h) (see #2032) SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0005h --------k-2F4A11BX0007----------------------- INT 2F - DBLSPACE.BIN - "GetDriveSpace" - GET SPACE AVAIL ON COMPRESSED DRIVE AX = 4A11h BX = 0007h DL = compressed drive number (0=A:) Return: AX = status (0000h,0102h) (see also #2032) 0000h successful DS:SI -> free space record (see #2035) Program: DBLSPACE.BIN is the resident driver for DoubleSpace, the disk-compression software bundled with MS-DOS 6.0 SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0008h Format of DBLSPACE free space record: Offset Size Description (Table 2035) 00h DWORD total number of sectors in drive's sector heap 04h DWORD number of free sectors in drive's sector heap --------k-2F4A11BX0008----------------------- INT 2F - DBLSPACE.BIN - "GetFileFragmentSpace" - GET SIZE OF FRAGMENT HEAP AX = 4A11h BX = 0008h DL = compressed drive number (0=A:) Return: AX = status (0000h,0102h) (see also #2032) 0000h successful BX = maximum entries in File Fragment heap CX = available entries in File Fragment heap SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0007h,AX=4A11h/BX=0009h --------k-2F4A11BX0009----------------------- INT 2F - DBLSPACE.BIN - "GetExtraInfo" - DETERMINE NUMBER OF DISK_UNIT STRUCTS AX = 4A11h BX = 0009h DL = compressed drive number (0=A:) Return: AX = status (see also #2032) 0000h successful CL = number of DISK_UNIT structures allocated (see AX=4A11h/BX=0005h) CH = DoubleGuard enabled-checks bitflags in bits 6-0 (DOS 6.2) Note: the DoubleGuard checks are enabled or disabled as a block by the DoubleGuard= line in DBLSPACE.INI; they may be individually set with the CheckSum= line. SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=0008h --------k-2F4A11BX000A----------------------- INT 2F - DBLSPACE.BIN v6.2 - SET AUTOMOUNT DRIVES AX = 4A11h BX = 000Ah CX:DX = bitmask of drives on which to enable AutoMount (DX bit 0 = A:, CX bit 0 = P:, etc.) Return: AX = 0000h if supported CX:DX = old mask or 0000h:0000h on error BX destroyed SeeAlso: AX=4A11h/BX=000Bh --------k-2F4A11BX000B----------------------- INT 2F - DBLSPACE.BIN v6.2 - GET AUTOMOUNT DRIVES AX = 4A11h BX = 000Bh Return: AX = 0000h if supported CX:DX = mask of drives with AutoMount enabled 0000h:0000h on error BX destroyed SeeAlso: AX=4A11h/BX=000Ah --------k-2F4A11BXFFFE----------------------- INT 2F U - DBLSPACE.BIN - RELOCATE AX = 4A11h BX = FFFEh ES = segment to which to relocate DBLSPACE.BIN Return: ??? Notes: called by DBLSPACE.SYS to relocate DBLSPACE.BIN to its final position in memory this function also unhooks and discards the code providing this function and AX=4A11h/BX=FFFFh this function is also supported by the version of SuperStor bundled with IBM DOS 6.x and "preloading" versions of Stacker SeeAlso: AX=4A11h/BX=FFFFh --------k-2F4A11BXFFFF----------------------- INT 2F U - DBLSPACE.BIN - GET RELOCATION SIZE AX = 4A11h BX = FFFFh Return: AX = number of paragraphs needed by DBLSPACE.BIN Note: used by DBLSPACE.SYS to relocate the DBLSPACE driver to its final position in memory this function is also supported by the version of SuperStor bundled with IBM DOS 6.x and "preloading" versions of Stacker SeeAlso: AX=4A11h/BX=0000h,AX=4A11h/BX=FFFEh --------k-2F4A12CX4D52----------------------- INT 2F - Microsoft Realtime Compression Interface (MRCI) - RAM-BASED SERVER AX = 4A12h CX = 4D52h ("MR") DX = 4349h ("CI") Return: CX = 4943h ("IC") if installed DX = 524Dh ("RM") if installed ES:DI -> MRCINFO structure (see #0590 at INT 1A/AX=B001h) Note: this call is functionally identical to INT 1A/AX=B001h, but should be called first, as the latter call is used for the first, ROM-based MRCI server, while this call is used for RAM-based servers which may be partially or entirely replacing a prior server SeeAlso: AX=4A12h/CX=5354h,INT 1A/AX=B001h --------k-2F4A12CX5354----------------------- INT 2F - Stacker 4 LZS Compression Interface (LZSAPI) AX = 4A12h CX = 5354h ("ST") DX = 4143h ("AC") Return: AX = 4F4Bh ("OK") if installed CX = 7374h ("st") if installed DX = 6163h ("ac") if installed ES:DI -> entry point in LZSAPI server (usually, driver STACKER.COM) containing far address of an actual LZSINFO structure (see #2036) SeeAlso: AX=4A12h/CX=4D52h,INT 25/AX=CDCDh Format of LZSINFO structure: Offset Size Description (Table 2036) 00h 6 BYTEs signature "LZSAPI" 06h WORD server version (200 (0C8h) for Stacker 4 and Stacker Anywhere) 08h 4 BYTEs vendor signature "STAC" = Stac Electronics, Inc. 0Ch 6 BYTEs ??? 12h WORD bit flags: server status/capabilities (see #2037) 14h DWORD -> Stacker 3.X-compatible compression procedure 18h DWORD -> Stacker 3.X-compatible decompression procedure 1Ch 4 BYTEs reserved (always set to 0) 20h DWORD -> incremental Stacker 3.x-compatible compression procedure (see #2038) 24h 4 BYTEs ??? 28h DWORD -> incremental Stacker 3.x-compatible decompression procedure (see #2039) 2Ch 4 BYTES ??? 30h DWORD -> new (Stacker 4) compression procedure 34h 4 BYTEs ??? 38h DWORD -> new (Stacker 4) decompression procedure Notes: Stacker 4 usally keeps two different data-compression algorithms in memory (preferably in XMA): 1) new (Stacker 4) data compression algorithm (4K LZ77 with hashing and static Huffman encoding), and 2) old (Stacker 3.x-compatible) one (2K LZ77 with hashing), which is used to work with STACVOL files created under older versions of Stacker. Bitfields for LZSAPI capabilities: Bit(s) Description (Table 2037) 0 ??? 1 busy/error flag 2-10 ??? 11 maximum compressor/decompressor presented (Table 2038) Call Stacker 3.x-style non-incremental functions with: STACK: DWORD return address for compress/decompress procedure WORD compression algorithm parameters (see #2040) WORD size of destination buffer (in bytes) DWORD address of destination buffer WORD size of source buffer (in bytes) DWORD address of source buffer Return: (compression/decompression procedure) AX = size of resulting data in destination buffer 0000h if error (either destination buffer too small or error in compressed data) (Table 2039) Call Stacker 4-style incremental procedures with: STACK: DWORD return address for compr./decompr. procedure DWORD address of LZSSWAP structure (see #2041) if 0000:0000, procedure uses non-incremental technique WORD compression algorithm parameters (see #2040) WORD size of destination buffer (in bytes) DWORD address of destination buffer WORD size of source buffer (in bytes) DWORD address of source buffer (Table 2040) Values for Compression algorithm parameters: Value Compression level (/P=xx parameter) 07F9h 1 0621h 2 0625h 3 0665h 4 0669h 5 06E9h 6 06EDh 7 07D1h 8 07D9h 9 Format of LZSSWAP structure: Offset Size Description (Table 2041) 00h 2 BYTEs signature "CS" 02h 6 BYTEs reserved 08h DWORD address of destination buffer swapping procedure 0Ch DWORD address of stack swapping procedure --------k-2F4A13----------------------------- INT 2F U - DBLSPACE.BIN - GET ??? ENTRY POINTS AX = 4A13h Return: AX = 134Ah if supported ES:BX -> entry point record (see #2042) SeeAlso: AX=4A11h/BX=0000h Format of DBLSPACE entry point record: Offset Size Description (Table 2042) 00h DWORD pointer to FAR function for ??? 04h 5 BYTEs FAR JUMP instruction to ??? ----------2F4A15BX0000----------------------- INT 2F - MS EMM386.EXE v4.46+ - INSTALL I/O VIRTUALIZATION HANDLER AX = 4A15h BX = 0000h (function number) DX = starting I/O address EDX high word = ending I/O address CX = number of ports to trap DS:SI -> I/O dispatch table (see #3220) DI = size of client's code and data Return: CF clear if successful CF set on error Notes: this interface is only available in virtual-86 mode; the I/O handlers will be called in protected mode only ports 0100h-FFFFh may be trapped; EMM386 reserved ports 0000h- 00FFh Format of EMM386 I/O dispatch table [array]: Offset Size Description (Table 3220) 00h WORD I/O port offset (added to DX to get actual port number) 02h WORD offset of I/O handler for port (see #3221) (Table 3221) Values EMM386 I/O dispatch function is called with: CX = Ring0 code selector for I/O handler's segment DS = Ring0 data selector for I/O handler's segment (alias of CS) EDX = faulting I/O address ECX = direction (00000008h for byte output, 00000000h for byte input) EAX = data in/out Return: (via FAR RET) CF clear if I/O access successfully virtualized CF set if access not virtualized (default handler will be called to perform the I/O) SeeAlso: #3220 --------D-2F4A33----------------------------- INT 2F - Windows95 - CHECK MS-DOS VERSION 7 AX = 4A33h Return: AX = 0000h for MS-DOS 7.00+ BX,DX,SI,DS may be destroyed AX nonzero if MS-DOS 6- or other DOS SeeAlso: INT 21/AH=30h --------N-2F4B------------------------------- INT 2F - LAN Manager 2.0 DOS Enh NETWKSTA.EXE - NETWORK WORKSTATION REDIRECTOR AH = 4Bh ??? Return: ??? Note: LAN Manager enhanced mode adds features beyond the standard redirector file/printer services SeeAlso: AX=118Ah,AX=4100h,AH=42h --------T-2F4B01----------------------------- INT 2F C - DOS 5+ TASK SWITCHER - BUILD CALLOUT CHAIN AX = 4B01h CX:DX -> task switcher entry point (see #2045) ES:BX = 0000h:0000h Return: ES:BX -> callback info structure (see #2043) or 0000h:0000h Notes: called by the task switcher this function is hooked by clients which require notification of task switcher activities; the call must first be passed on to the prior handler with registers unchanged using a simulated interrupt. On return, the client must build a callback info structure and store the returned ES:BX in the "next" field, then return the address of its own callback info structure. a client program must add itself to the notification chain if it provides services to other programs; before terminating, it must remove itself from the chain by calling the task switcher's entry point with AX=0005h (see #2045) the task switcher entry point should not be saved, as it is subject to change and will be provided on any notification call the Windows 3.1 Standard Mode supports this API SeeAlso: AX=160Bh,AX=4B02h Format of task switcher callback info structure: Offset Size Description (Table 2043) 00h DWORD pointer to next callback info structure 04h DWORD pointer to notification function (see #2044) 08h DWORD reserved 0Ch DWORD address of zero-terminated list of API info structures (see #2047) (Table 2044) Values task switcher notification function is called with: AX = function 0000h switcher initialization Return: AX = status 0000h if OK to load nonzero to abort task switcher 0001h query suspend BX = session ID Return: AX = status 0000h if OK to switch session 0001h if not 0002h suspend session BX = session ID interrupts disabled Return: AX = 0000h if OK to switch session = 0001h if not 0003h activate session BX = session ID CX = session status flags bit 0: set if first activation of session bits 1-15: reserved (0) interrupts disabled Return: AX = 0000h 0004h session active BX = session ID CX = session status flags bit 0: set if first activation of session bits 1-15: reserved (0) Return: AX = 0000h 0005h create session BX = session ID Return: AX = 0000h if OK to create session = 0001h if not 0006h destroy session BX = session ID Return: AX = 0000h 0007h switcher termination BX = flags bit 0: set if calling switcher is only switcher loaded bits 1-15: reserved (0) Return: AX = 0000h ES:DI -> task switcher entry point (see #2045) Notes: function 0000h is generally called by the program which controls or invokes the task switcher, rather than by the task switcher itself; the entry point supplied to this function is not necessarily the entry point to the task switcher itself, and may be 0000h:0000h. If any client indicates that loading is not possible, all clients will be called with function 0007h; thus it is possible for a client to receive a termination notice without a corresponding initialization notice. except for functions 0002h and 0003h, the notification handler is called with interrupts enabled and may make any INT 21h function call; interrupts must not be enabled in functions 0002h and 0003h function 0007h may be called with ES:DI = 0000h:0000h if the entry point is no longer valid --------T-2F4B02BX0000----------------------- INT 2F - DOS 5+ TASK SWITCHER - INSTALLATION CHECK AX = 4B02h BX = 0000h ES:DI = 0000h:0000h Return: ES:DI = 0000h:0000h if task switcher not loaded ES:DI -> task switcher entry point (see #2045) if loaded AX = 0000h Notes: the returned entry point is that for the most-recently loaded task switcher; the entry points for prior task switchers may be determined with the "get version" call (see #2045) this function is supported by PC Tools v8+ CPTASK SeeAlso: AX=4A05h,AX=4B03h (Table 2045) Call task switcher entry point with: AX = 0000h get version Return: CF clear if successful AX = 0000h ES:BX -> task switcher version struct (see #2046) CF set if unsupported function AX = 0001h test memory region ES:DI -> first byte to be tested CX = size of region to test Return: CF clear if successful AX = memory type of tested region 0000h global 0001h global and local 0002h local (replaced on session switch) CF set if unsupported function AX = 0002h suspend switcher ES:DI -> new task switcher's entry point Return: CF clear if successful AX = state 0000h switcher has been suspended 0001h switcher not suspended, new switcher must abort 0002h switcher not suspended, but new switcher may run anyway CF set if unsupported function AX = 0003h resume switcher ES:DI -> new task switcher's entry point Return: CF clear if successful AX = 0000h CF set if unsupported function AX = 0004h hook notification chain ES:DI -> callback info structure to be added to chain (see #2043) Return: CF clear if successful AX = 0000h CF set if unsupported function AX = 0005h unhook notification chain ES:DI -> callback info structure to be removed from chain (see #2043) Return: CF clear if successful AX = 0000h CF set if unsupported function AX = 0006h query API support BX = asynchronous API identifier Return: CF clear if successful AX = 0000h ES:BX -> API info structure (see #2047) for the client which provides the highest level of API support CF set if unsupported function Format of task switcher version structure: Offset Size Description (Table 2046) 00h WORD major version of supported protocol (current protocol is 1.0) 02h WORD minor version of supported protocol 04h WORD major version of task switcher 06h WORD minor version of task switcher 08h WORD task switcher ID (see AX=4B03h) 0Ah WORD operation flags bit 0: set if task switcher disabled bits 1-15: reserved (0) 0Ch DWORD pointer to ASCIZ task switcher name ("MS-DOS Shell Task Switcher" for DOSSHELL task switcher) 10h DWORD pointer to previous task switcher's entry point or 0000h:0000h Format of API info structure: Offset Size Description (Table 2047) 00h WORD size of structure in bytes (000Ah) 02h WORD API identifier 0001h NetBIOS 0002h 802.2 0003h TCP/IP 0004h LAN Manager named pipes 0005h Novell NetWare IPX 04h WORD major version \ of highest version of API for which the support 06h WORD minor version / level specified in the next field is provided 08h WORD support level 0001h minimal support 0002h API-level support 0003h switcher compatibility 0004h seamless compatibility --------T-2F4B03----------------------------- INT 2F - DOS 5+ TASK SWITCHER - ALLOCATE SWITCHER ID AX = 4B03h ES:DI -> task switcher entry point (see #2045) Return: AX = 0000h BX = switcher ID (0001h-000Fh), or 0000h if no more available Notes: if a task switcher has determined that it is the first to be loaded, it must allocate an identifier for itself and provide this function to all subsequent task switchers; if it is not the first to be loaded, it must call this function to allocate an ID. The switcher ID is used as the high four bits of all session identifiers to ensure unique session IDs. if no more switcher IDs are available, the new task switcher making the call must terminate or disable itself the task switcher providing the identifiers may call the new task switcher's entry point as needed this call is available from within DOSSHELL even if the task switcher is not installed this function is supported by PC Tools v8+ CPTASK, but appears to always return an ID of 0000h SeeAlso: AX=4B02h,AX=4B04h --------T-2F4B04----------------------------- INT 2F - DOS 5+ TASK SWITCHER - FREE SWITCHER ID AX = 4B04h BX = switcher ID ES:DI -> task switcher entry point (see #2045) Return: AX = 0000h BX = status 0000h successful other error (invalid ID or ID not allocated) Notes: called by a task switcher when it exits, unless it was the first loaded and is providing the support for AX=4B03h and AX=4B04h the task switcher providing the identifiers may call the terminating task switcher's entry point as needed this call is available from within DOSSHELL even if the task switcher is not installed this call is supported by PC Tools v8+ CPTASK, but appears to return sucessfully no matter which ID is given SeeAlso: AX=4B02h,AX=4B03h --------T-2F4B05----------------------------- INT 2F C - DOS 5+ TASK SWITCHER - IDENTIFY INSTANCE DATA AX = 4B05h ES:BX = 0000h:0000h CX:DX -> task switcher entry point (see #2045) Return: ES:BX -> startup info structure (see #2048) or 0000h:0000h Notes: called by task switcher clients with instance data should hook this call, pass it through to the previous handler with unchanged registers using a simulated interrupt. On return, the client should create a startup info structure (see #2048), store the returned ES:BX in the "next" field, and return the address of the created structure in ES:BX all MS-DOS function calls are available from within this call SeeAlso: AX=1605h,AX=160Bh,AX=4B02h Format of task switcher startup info structure: Offset Size Description (Table 2048) 00h 2 BYTEs major, minor version of info structure (03h,00h) 02h DWORD pointer to next startup info structure or 0000h:0000h 06h DWORD 0000h:0000h (ignored) 0Ah DWORD ignored 0Eh DWORD pointer to instance data records (see #2049) Format of one instance data record in array: Offset Size Description (Table 2049) 00h DWORD address of instance data (end of array if 0000h:0000h) 04h WORD size of instance data --------W-2F4B06----------------------------- INT 2F - MS Windows - WIN.COM - GET ??? POINTER TO WIN.COM AX = 4B06h Return: AX = 0000h ES:BX -> ??? function in WIN.COM Note: the entry point is called with AX = 0001h or 0003h BX = ??? SeeAlso: AX=4B80h --------W-2F4B20----------------------------- INT 2F - MS Windows 3 - WIN.COM - SET PROGRAM TO EXECUTE ON EXIT AX = 4B20h Return: AX = 0000h if successful DX:CX -> 256-byte buffer for pathname and commandline (see #2050) Note: when the Windows function ExitWindows is called with an exit code of 44h, WIN.COM executes the program specified in the returned buffer and then restarts Windows Format of WIN.COM buffer: Offset Size Description (Table 2050) 00h 128 BYTEs ASCIZ pathname of program to execute 80h 128 BYTEs commandline for program --------W-2F4B80----------------------------- INT 2F - MS Windows - WSWAP.EXE - RESET INTERNAL VARIABLES AX = 4B80h Return: nothing Note: called by WINOLDAP.MOD SeeAlso: AX=4B06h --------p-2F4C------------------------------- INT 2F U - Advanced Power Management AH = 4Ch AL = function 00h version check 01h suspend system requested FFh suspend/resume battery notification ??? Return: ??? ----------2F4D------------------------------- INT 2F U - ??? AH = 4Dh ??? Return: ??? Note: reportedly called by Kana Kanji Converter and MSKK --------N-2F4E53BL00------------------------- INT 2F - SilverNET v2+ - INSTALLATION CHECK AX = 4E53h ("NS") BL = 00h (function "installation check") BH = module ID (see #2051) Return: AX = 0000h if specified module installed BX = 4E53h if installed Program: SilverNET is an SMB-compatible peer-to-peer NOS for DOS or Windows systems, by Net-Source, Inc. of Santa Clara, CA. SeeAlso: AX=4E53h/BL=01h,AX=4E53h/BL=02h,AX=B800h,AX=B809h (Table 2051) Values for SilverNET module ID: 01h SilverCACHE 02h Workstation 03h NetBIOS 04h Peer 20h NS Share 80h NetWare help TSR --------N-2F4E53BL01------------------------- INT 2F - SilverNET - GET RUNTIME PARAMETER AX = 4E53h ("NS") BL = 01h (function "get runtime parameter") BH = module ID (see #2051) CX = parameter index (see #2052,#2054,#2055) Return: AX = WORD value at specified index (see #2053) Desc: retrieve a word of data from the specified SilverNET module (Table 2052) Values for SilverNET Peer parameter index (* = read-only): 00h * maximum outstanding SMB buffers 02h * maximum logged-in nodes 04h * number of shareable resources 06h * number of characters to print per time slice 08h * number of printers that can be shared 0Ah * number of nodes logged in 0Ch * number of files to allow opened 0Eh how fast to despool (/PSLICE) 10h audit flag 24h * far pointer to resource table (each resource is 96 bytes in length) 32h * far pointer to SFT (internal if SilverNET files > CONFIG.SYS files, else DOS SFT) 36h spool flags (see #2053) Bitfields for spool flags: Bit(s) Description (Table 2053) 0 LPT1 needs despooling 1 LPT2 needs despooling 2 LPT2 needs despooling 4 COM1 needs despooling 5 COM2 needs despooling 6 COM3 needs despooling (Table 2054) Values for NS Share parameter index (* = read-only): 00h version number (high byte = minor, low byte = major) 10h * segment of first lock record (other records in consecutive paragraphs) (if PSP field = 0000h, lock record is free) 12h * maximum possible number of lock records 14h * starting segment of sharing buffer (NS Share's sharing records are identical to DOS SHARE except that fields which are normally offsets into SHARE are segment numbers) 18h * size of sharing buffer in paragraphs 1Ah * total free paragraphs in sharing buffer 1Ch * current number of shared files 1Eh * current number of locked records (Table 2055) Values for Workstation parameter index (* = read-only): 00h version number (high byte = minor, low byte = major) 02h * size of each network buffer for file operations 04h * number of redirector file buffers 06h * size of each print cache buffer 08h * number of network LPT printers 0Ch flush time in ticks (idle time on network printer before flushing) 0Eh (16 WORDs) last active time for each printer 2Eh * stub segment if program split into two parts 60h receive name number for datagram listens 62h * 18-byte machine name 74h * LASTDRIVE (01h = A:, etc.) 7Ch row number of message box on screen 7Eh message time in clock ticks 82h * number of network adapters in use 84h station ID broadcast flag (never set on redirectors) 96h * NetBIOS names left 98h * NCBs left 9Ah * sessions left A2h * total number of network printers (LPT+COM) A4h * number of serial network printers A8h * segment containing file cache buffers AAh * segment containing print cache buffers ACh * bytes remaining free in HMA before program loaded AEh * start of free memory in HMA B2h * flag: using HMA --------N-2F4E53BL02------------------------- INT 2F - SilverNET - SET RUNTIME PARAMETERS AX = 4E53h ("NS") BL = 02h (function "set runtime parameters") BH = module ID (see #2051) CX = parameter index (see #2054,#2055) DX = new value for specified parameter Desc: set a WORD value in the specified SilverNET module Note: not all indexed parameters are writable; modifying a read-only parameter can result in system crashes SeeAlso: AX=4E53h/BL=00h,AX=4E53h/BL=01h --------N-2F5100----------------------------- INT 2F U - ODIHLP.EXE - INSTALLATION CHECK AX = 5100h Return: AL = FFh if installed BX = 0000h DX:SI -> signature string "ODI$HLP$" Program: ODIHLP is a real-mode helper allowing the Windows for Workgroups 3.11 protected-mode NDIS3 protocol to work with real-mode ODI drivers and LSL.COM Note: the returned signature string might be the first field of a structure SeeAlso: AX=C000h"LSL.COM" --------k-2F5200----------------------------- INT 2F - JAM.SYS v1.10+ - "GetVersion" - INSTALLATION CHECK AX = 5200h Return: AH = 80h (successful) if installed BX = internal JAM.SYS version number CX = size of JAMINFO structure (see #2056,#2057) DX = JAM.SYS segment address Program: JAM.SYS is a main component of the JAM Real-Time Data Compression Utilities by George A. Reznik and friends (JAM Software). SeeAlso: AX=5201h Format of JAMINFO v1.10 structure: Offset Size Description (Table 2056) 00h 25 BYTEs extended BIOS parameter block (BPB) 19h 11 BYTEs ??? 25h DWORD total number of sectors in JAM archive file (size of compressed data area) 29h BYTE flags (see #2058) 2Ah 127 BYTEs full JAM archive file name A9h WORD the number of fragments in archive file ABh 96 BYTEs archive file fragmentation list - array of 16 FRAGMENT structures (see #2059) 10Bh DWORD address of the host-drive DPB (Drive Parameter Block) 10Fh DWORD number of free sectors in JAM archive file 113h WORD device status word (see #2060) SeeAlso: #2057 Format of JAMINFO v1.20 structure: Offset Size Description (Table 2057) 00h 25 BYTEs extended BIOS parameter block (BPB) 19h BYTE physical driver number 1Ah BYTE reserved 1Bh BYTE extended boot record signature 1Ch DWORD volume serial number 20h 11 BYTEs volume label 2Bh 8 BYTEs file system ID 33h DWORD total number of sectors in JAM archive file (size of compressed data area) 37h BYTE flags (see #2058) 38h 128 BYTEs full JAM archive file name B8h WORD the number of fragments in archive file BAh 96 BYTEs archive file fragmentation list - array of 16 FRAGMENT structures (see #2059) 11Ah DWORD address of the host-drive DPB (Drive Parameter Block) 11Eh DWORD number of free sectors in JAM archive file 122h WORD device status word (see #2060) Note: the first 33h bytes are copied from the archive file's boot sector SeeAlso: #2056 Bitfields for JAMINFO flags: Bit(s) Description (Table 2058) 2-0 reserved 3 (v1.20+) 4 enable direct write requests (Int 26h, non-DOS requests, etc.) 5 read-only mode 6 no write-behind caching 7 full undelete-compatible allocation strategy SeeAlso: #2056,#2057 Format of JAM FRAGMENT structure: Offset Size Description (Table 2059) 00h WORD starting sector (low word) 02h BYTE starting sector (high byte) 03h WORD size of fragment (low word) 05h BYTE size of fragment (high byte) SeeAlso: #2056,#2057 (Table 2060) Values for JAM.SYS status (high byte): 00h successful 01h drive is not a JAM drive 02h drive is already attached 03h archive file cluster size value is larger than driver's one 04h drive is not attached 05h drive is locked 06h drive is not locked 07h bad physical-level request 08h host drive reading/writing error 09h bad entries in JAM descriptor table 0Ah compressed data integrity error 0Bh archive file overflow 0Ch bad DOS request 0Dh incorrect parameters in JAMINFO structure Note: the low byte of the status is the DOS error code for the Host drive SeeAlso: #1885 at INT 2F/AX=0802h --------k-2F5201----------------------------- INT 2F - JAM.SYS v1.10+ - "GetInfo" - GET COMPRESSED DRIVE INFORMATION AX = 5201h DL = compressed drive number (0-default, 1-A:, etc.) DS:BX -> buffer for JAMINFO structure (see #2056,#2057) Return: AH = status (00h,01h) (see #2060) SeeAlso: AX=5200h --------k-2F5202----------------------------- INT 2F - JAM.SYS v1.10+ - "Attach" - MOUNT COMPRESSED DRIVE AX = 5202h DL = drive number (0-default, 1-A:, etc.) to attach to the JAM archive file DS:BX -> pointer to JAMINFO structure (see #2056,#2057), which contains parameters of the JAM file to mount, and pointer to the host drive DPB (i.e. DPB of the drive on which the JAM file is located) Return: AH = status (00h,02h,03h,08h,09h,0Dh) (see also #2060) 03h archive file cluster size value is larger than driver's - not mounted 09h bad entries in JAM descriptor table - file mounted read-only AL = host drive error code (see #1885 at INT 2F/AX=0802h) SeeAlso: AX=5203h --------k-2F5203----------------------------- INT 2F - JAM.SYS v1.10+ - "Detach" - UNMOUNT COMPRESSED DRIVE AX = 5203h DL = drive number (0-default, 1-A:, etc.) to detach Return: AH = status (00h,01h,04h,05h,08h,09h,0Bh,0Dh) (see #2060) AL = host drive error code (see #1885 at INT 2F/AX=0802h) SeeAlso: AX=5202h --------k-2F5204----------------------------- INT 2F - JAM.SYS v1.10+ - "Lock" - LOCK COMPRESSED DRIVE AX = 5204h DL = drive number (0-default, 1-A:, etc.) to lock Return: AH = status (00h,01h,04h,05h,08h,09h,0Bh,0Dh) (see #2060) AL = host drive error code (see #1885 at INT 2F/AX=0802h) SeeAlso: AX=5205h, AX=5206h, AX=5207h --------k-2F5205----------------------------- INT 2F - JAM.SYS v1.10+ - "UnLock" - UNLOCK COMPRESSED DRIVE AX = 5205h DL = drive number (0-default, 1-A:, etc.) to unlock Return: AH = status (00h,01h,04h,06h,08h,09h,0Dh) (see #2060) AL = host drive error code (see #1885 at INT 2F/AX=0802h) SeeAlso: AX=5204h, AX=5206h, AX=5207h Note: Lock and UnLock functions were added to the JAM API to prevent asynchronous physical-level access (see AX=5206h,AX=5207h) to compressed data on JAM drives. In other words, two or more programs which use JAM API (say, JMAX optimizer and JCHKDSK - disk checker) cannot be run on the same JAM drive simultaneously. --------k-2F5206----------------------------- INT 2F - JAM.SYS v1.10+ - "Read" - PHYSICAL READ DATA FROM JAM ARCHIVE AX = 5206h DL = drive number (0-default, 1-A:, etc.) DS:BX -> disk transfer packet (see #2061) Return: AH = status (00h,01h,04h,06h,07h,08h,0Dh) (see #2060) AL = host drive error code (see #1885 at INT 2F/AX=0802h) Program: JAM.SYS is a main component of the JAM Real-Time Data Compression Utilities by George A. Reznik and friends (JAM Software). SeeAlso: AX=5207h Format of disk transfer packet: Offset Size Description (Table 2061) 00h DWORD sector number 04h WORD number of sectors to read(write) 06h DWORD transfer address --------k-2F5207----------------------------- INT 2F - JAM.SYS v1.10+ - "Write" - PHYSICAL WRITE DATA TO JAM ARCHIVE AX = 5207h DL = drive number (0-default, 1-A:, etc.) DS:BX -> disk transfer packet (see #2061) Return: AH = status (00h,01h,04h,06h,07h,08h,0Dh) (see #2060) AL = host drive error code (see #1885 at INT 2F/AX=0802h) SeeAlso: AX=5206h --------p-2F53------------------------------- INT 2F U - POWER.EXE - APM event broadcasting??? AH = 53h AL = event??? 05h CPU idle 0Bh PM event broadcast API Return: ??? Note: called by MS Windows 3.1 POWER.DRV; hooked by MS Mouse driver v8.20+ and PC-Cache v8.0 SeeAlso: AX=530Bh,AH=54h,INT 33/AX=002Fh --------p-2F530B----------------------------- INT 2F U - ??? (MOUSEPWR.COM, others) - ??? AX = 530Bh BX = subfunction 0003h ??? 0004h ??? ??? Return: ??? Note: it appears that subfunction 0003h reads or restores the current mouse settings (the MS Mouse driver hooks AX=530Bh), and 0004h might be the converse --------p-2F5400----------------------------- INT 2F U - POWER.EXE - INSTALLATION CHECK AX = 5400h Return: AX = POWER.EXE version (AH = major, AL = minor) if installed BX = 504Dh ("PM") CF clear Note: called by MS Windows 3.1 POWER.DRV SeeAlso: AH=53h,AX=5401h,AX=5402h,AX=5481h,AX=5482h --------p-2F5401----------------------------- INT 2F U - POWER.EXE - GET/SET POWER STATUS AX = 5401h BH = function 00h get status Return: BL = current power management status (see #2062) 01h set status BL = new power managment status (see #2062) Return: AX = function status (see #2063) Note: called by MS Windows 3.1 POWER.DRV SeeAlso: AH=53h,AX=5400h,AX=5402h,AX=5403h Bitfields for power management status: Bit(s) Description (Table 2062) 0 POWER.EXE power management enabled 1 APM firmware power management enabled 2-7 reserved (0) Notes: bit 1 is ignored if there is no APM firmware bits 1-0: 00 = POWER OFF, 10 = POWER STD, 11 = POWER ADV (Table 2063) Values for POWER.EXE function status: 0000h successful 0002h "ERROR_PM_ALREADY_CONNECTED" 0003h "ERROR_PM_NOT_CONNECTED" 0087h "ERROR_PM_INVALID_PARAMETER" --------p-2F5402----------------------------- INT 2F U - POWER.EXE - GET/SET IDLE DETECTION STRATEGY AX = 5402h BH = subfunction 00h get other set BL = detection strategy (00h-0Fh or FFh) Return: BX = current/new detection strategy SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5481h,AX=5482h --------p-2F5403----------------------------- INT 2F U - POWER.EXE - GET/SET ADVANCED POWER MANAGEMENT SETTING AX = 5403h BX = new power management setting or 0000h to get current setting Return: AX = status 0000h successful BX = power management setting (see #2064) other error code SeeAlso: AX=5401h,AX=5480h (Table 2064) Values for power management setting: 0001h-0005h "min" 0006h "reg" 0007h-0008h "max" --------t-2F5453----------------------------- INT 2F - TesSeRact RAM-RESIDENT PROGRAM INTERFACE AX = 5453h BX = subfunction 00h installation check CX = 0000h DS:SI -> 8-char blank-padded name (see #2065) Return: AX = FFFFh installed CX = ID number of already-installed copy AX = anything else, not installed CX = ID number for TSR when installed 01h get user parameters CX = TSR ID number Return: AX = status 0000h successful ES:BX -> user parameter block (see #2066) nonzero failed 02h check if hotkey in use CL = scan code of hot key (see #0005) Return: AX = FFFFh hot key conflicts with another TSR otherwise safe to use the hotkey 03h replace default critical error handler CX = TSR ID number DS:SI -> new routine for INT 24h Return: AX = nonzero, unable to install new handler 04h get internal data area CX = TSR ID number Return: AX = status 0000h successful ES:BX -> TSR's internal data area (see #2067) nonzero, TSR not found 05h set multiple hot keys CX = TSR ID number DL = number of additional hot keys to allocate DS:SI -> table of hot keys BYTE hotkey scan code (see #0005) BYTE hotkey shift state BYTE flag value to pass to TSR (nonzero) Return: AX = nonzero, unable to install hot keys 06h - 0Fh reserved 10h enable TSR CX = TSR ID number Return: AX = nonzero, unable to enable 11h disable TSR CX = TSR ID number Return: AX = nonzero, unable to disable 12h unload TSR CX = TSR ID number Return: AX = nonzero, invalid TSR number Note: if any interrupts used by TSR have been grabbed by another TSR, the TesSeRact routines will wait until it is safe to remove the indicated TSR from memory 13h restart TSR CX = TSR ID number of TSR which was unloaded but is still in memory Return: AX = nonzero, unable to restart TSR 14h get status word CX = TSR ID number Return: AX = FFFFh invalid ID number = other, successful BX = bit flags 15h set status word CX = TSR ID number DX = new bit flags Return: AX = nonzero, unable to set status word 16h get INDOS state at popup CX = TSR ID number Return: AX = 0000h successful BX = value of INDOS flag 17h - 1Fh reserved 20h call user procedure CX = TSR ID number ES:DI -> user-defined data Return: AX = 0000h successful 21h stuff keystrokes into keyboard buffer CX = TSR ID number DL = speed 00h stuff keystrokes only when buffer is empty 01h stuff up to four keystrokes per clock tick 02h stuff up to 15 keystrokes per clock tick DH = scan code flag if zero, buffer contains alternating ASCII and scan codes if nonzero, buffer contains only ASCII codes SI = number of keystrokes ES:DI -> buffer to stuff Return: AX = 0000h success F0F0h user aborted with ^C or ^Break other unable to stuff keystrokes 22h (v1.10) trigger popup CX = TSR ID number Return: AX = 0000h success, TSR will either pop up or beep to indicate that it is unable to pop up nonzero invalid ID number 23h (v1.10) invoke TSR's background function CX = TSR ID number Return: AX = 0000h success FFFFh not safe to call background function nonzero invalid ID number 24h - 2Fh reserved Notes: Borland's THELP.COM popup help system for Turbo Pascal and Turbo C (versions 1.x and 2.x only) fully supports the TesSeRact API, as do the SWAP?? programs by Innovative Data Concepts. AVATAR.SYS supports functions 00h and 01h (only the first three fields of the user parameter block) using the name "AVATAR " SeeAlso: AX=CAFEh,INT 16/AX=55FFh,INT 2D"AMIS" Index: installation check;TesSeRact TSR interface|uninstall;TesSeRact (Table 2065) Values for TesSeRact names: "AVATAR " AVATAR.SYS "QeditTSR" TSR version of SemWare's Qedit editor "SCRNBLNK" Trusted Access screen blanker Format of TesSeRact User Parameter Block: Offset Size Description (Table 2066) 00h 8 BYTEs blank-padded TSR name 08h WORD TSR ID number 0Ah DWORD bitmap of supported functions 0Eh BYTE scan code of primary hotkey (see #0005) 00h = pop up when shift states match FFh = no popup (if shift state also FFh) 0Fh BYTE shift state of primary hotkey FFh = no popup (if scan code also FFh) 10h BYTE number of secondary hotkeys 11h DWORD pointer to extra hotkeys set by func 05h 15h WORD current TSR status flags 17h WORD PSP segment of TSR 19h DWORD DTA for TSR 1Dh WORD default DS for TSR 1Fh DWORD stack at popup 23h DWORD stack at background invocation Index: hotkeys;TesSeRact TSR interface Format of TSR internal data area: Offset Size Description (Table 2067) 00h BYTE revision level of TesSeRact library 01h BYTE type of popup in effect 02h BYTE INT 08 occurred since last invocation 03h BYTE INT 13 occurred since last invocation 04h BYTE active interrupts 05h BYTE active soft interrupts 06h BYTE DOS major version 07h BYTE how long to wait before popping up 08h DWORD pointer to INDOS flag 0CH DWORD pointer to DOS critical error flag 10h WORD PSP segment of interrupted program 12h WORD PSP segment of prog interrupted by INT 28 14h DWORD DTA of interrupted program 18h DWORD DTA of program interrupted by INT 28 1Ch WORD SS of interrupted program 1Eh WORD SP of interrupted program 20h WORD SS of program interrupted by INT 28 22h WORD SP of program interrupted by INT 28 24h DWORD INT 24 of interrupted program 28h 3 WORDs DOS 3.0+ extended error info 2Eh BYTE old BREAK setting 2Fh BYTE old VERIFY setting 30h BYTE were running MS WORD 4.0 before popup 31h BYTE MS WORD 4.0 special popup flag 32h BYTE enhanced keyboard call in use 33h BYTE delay for MS WORD 4.0 11 times (for INTs 08h,09h,13h,16h,1Ch,21h,28h,2Fh,1Bh,23h, and 24h): DWORD old interrupt vector BYTE interrupt number WORD offset in TesSeRact code segment of new interrupt handler --------p-2F5480----------------------------- INT 2F U - POWER.EXE - GET/SET ??? AX = 5480h BX = direction 0000h get other set CX = size of buffer (at least 0010h) DS:SI -> buffer Return: AX = status 0000h successful other error code SeeAlso: AX=5400h,AX=5481h,AX=548Fh --------p-2F5481----------------------------- INT 2F U - POWER.EXE - GET STATISTICS AX = 5481h BX = which statistics 0000h idle detection 0001h APM statistics CX = length of buffer in bytes DS:SI -> buffer for statistics (see #2068,#2069) Return: AX = status 0000h successful 0071h "ERROR_PM_BUFFER_TOO_SMALL" 0087h "ERROR_PM_INVALID_PARAMETER" SeeAlso: AH=53h,AX=5400h,AX=5480h,AX=5402h,AX=5482h Format of POWER.EXE idle detection statistics: Offset Size Description (Table 2068) 00h DWORD "CPU_ON_TIME" total time CPU is active with POWER.EXE idle detection enabled, in timer ticks 04h DWORD "CPU_IDLE_TIME" timer ticks during which CPU was idle (divide by previous to get idle rate) 08h DWORD total idle calls 0Ch DWORD "TOTAL_APP_IDLE" total INT 2Fh idle calls 10h DWORD "TOTAL_DOS_YIELD" total INT 28h idle calls 14h DWORD "TOTAL_KEY_IDLE" total INT 16h idle calls 18h DWORD "TOTAL_DOS_IDLE" total INT 2Ah idle calls Format of APM statistics: Offset Size Description (Table 2069) 00h DWORD "RESUME_COUNT" total number of resumes since last APM_ENABLE --------p-2F5482----------------------------- INT 2F U - POWER.EXE - GET/SET APM POLLING FREQUENCY AX = 5482h BX = new polling frequency or 0000h to get current frequency Return: AX = 0000h (successful) BX = current frequency if BX=0000h on entry SeeAlso: AH=53h,AX=5400h,AX=5401h,AX=5480h,AX=5481h,AX=548Fh --------p-2F548F----------------------------- INT 2F U - POWER.EXE - GET/SET ??? AX = 548Fh BX = ??? or 0000h to get current ??? Return: AX = 0000h (successful) BX = current ??? CX = ??? SeeAlso: AX=5400h,AX=5480h,AX=5482h --------l-2F5500----------------------------- INT 2F U - DOS 5+ - COMMAND.COM INTERFACE AX = 5500h Return: AX = 0000h if an instance of COMMAND.COM is already running DS:SI -> entry point table Notes: used to access the shareable portion of COMMAND.COM, which may have been moved into the HMA; only the primary COMMAND.COM retains this portion procedures called from a dispatcher in COMMAND's resident portion; most assume that the segment address of the resident portion is on the stack and are thus not of general use SeeAlso: AX=5501h --------l-2F5501----------------------------- INT 2F U - DOS 5+ - ROM COMMAND.COM INTERFACE AX = 5501h Return: ??? Note: used to determine whether the caller is the first instance of ROM COMMAND.COM SeeAlso: AX=5500h --------R-2F5600----------------------------- INT 2F - INTERLNK - INSTALLATION CHECK AX = 5600h DX = magic value FFFFh BL = instance number (00h = any, 01h = first loaded, etc.) Return: AL = FFh if installed BL = instance number CX = ??? (apparently always 0001h) DX = resident CS of driver, DX:0000h -> header (see #2070) SeeAlso: AX=5601h,AX=5602h,INT 60/AX=0000h Format of Interlnk device driver header: Offset Size Description (Table 2070) 00h DWORD pointer to next driver, offset=FFFFh if last driver 04h WORD device attributes (see #0954,#0955) 06h WORD device strategy entry point 08h WORD device interrupt entry point 0Ah 8 BYTEs character device name "NUL2 " 12h 165 BYTEs ??? B7h 67 BYTEs fully qualified Interlnk filename FAh 6 BYTEs ??? 100h DWORD pointer back to Interlnk filename at offset B7h 104h 8 BYTEs ??? 10Ch BYTE total number of redirected drives 10Dh BYTE first local drive number (0=A:) 10Eh BYTE printer redirection (0=no, 1=yes) 10Fh BYTE ??? 110h 3 BYTEs LPT1...3 status (0FFh=invalid) 113h 26 BYTEs remote drive number (0=A:, 0FEh=unused) (see note below) 12Dh 26 BYTEs always 0FEh ??? 147h 26 BYTEs always 0FFh ??? Note: to obtain the remote drive number, subtract the value at offset 10Ch from the local drive number before indexing into the table at 113h (example: if local drives F, G, H are remote drives C, F, E then the first three bytes at offset 113h are 02h, 05h, 04h) for each instance of Interlnk, an extra device driver is loaded, but all have the same device name NUL2 SeeAlso: #0953 at INT 21/AH=52h --------R-2F5601----------------------------- INT 2F - INTERLNK - CHECK IF REDIRECTED DRIVE AX = 5601h DX = magic value FFFFh BH = drive number (0=A:) BL = 00h Return: (as for AL=00h if redirected drive) SeeAlso: AX=5600h --------R-2F5602----------------------------- INT 2F - INTERLNK - GET ??? AX = 5602h DX = magic value FFFFh Return: CX = ??? SeeAlso: AX=5600h --------d-2F5700----------------------------- INT 2F U - IOMEGA DRIVERS - INSTALLATION CHECK AX = 5700h BX = program ID??? (0201h used by GUEST.EXE) DX = 496Fh ('Io') Return: AL = status 00h not installed FFh installed SeeAlso: AX=5701h,AX=5710h,AX=5711h,AX=5712h --------d-2F5700----------------------------- INT 2F U - IOMEGA DRIVERS - ??? AX = 5701h BX = program ID??? (0201h used by GUEST.EXE) DX = 496Fh ('Io') Return: AX = 0001h SeeAlso: AX=5700h,AX=5710h,AX=5711h,AX=5712h --------d-2F5700----------------------------- INT 2F U - IOMEGA DRIVERS - GET DRIVER INFORMATION??? AX = 5710h BX = program ID??? (0201h used by GUEST.EXE) DX = 496Fh ('Io') Return: AX = ??? (BX ORed with ???) BX = ??? (internal variable) CX = ??? (internal variable) DX = ??? (CX ORed with ???) SeeAlso: AX=5700h,AX=5701h,AX=5711h,AX=5712h --------d-2F5700----------------------------- INT 2F U - IOMEGA DRIVERS - LOCK MEDIA IN DRIVE AX = 5711h BX = program ID??? (0201h used by GUEST.EXE) DX = 496Fh ('Io') Return: CF clear if successful (storage medium in drive) AX = new lock count CF set on error (drive empty) SeeAlso: AX=5700h,AX=5701h,AX=5710h,AX=5712h --------d-2F5700----------------------------- INT 2F U - IOMEGA DRIVERS - UNLOCK MEDIA IN DRIVE / EJECT AX = 5712h BX = program ID??? (0201h used by GUEST.EXE) DX = 496Fh ('Io') Return: AX = new lock count (00h = unlocked) Note: if the lock count was already zero, the storage medium is ejected from the drive SeeAlso: AX=5700h,AX=5701h,AX=5710h,AX=5711h --------c-2F5758BX4858----------------------- INT 2F U - Helix Multimedia Cloaking - CACHECLK - INSTALLATION CHECK AX = 5758h BX = 4858h ('HX') DX = 4443h ('DC') CX <> 5758h Return: BX = 6878h if installed DX = 6463h if installed CX = version (CH=major,CL=minor) Program: CACHECLK is a 'Cloaked' disk cache by Helix Software Note: returns with registers unchanged if CX=5758h on entry SeeAlso: INT 16/AX=5758h/BX=4858h,INT 2F/AX=4310h"Cloaking" --------X-2F5D00----------------------------- INT 2F U - PCMCIA - AWARD PCDISK - GET INFO FROM DRIVER ??? AX = 5D00h Return: ES:BX -> ??? Note: supported by Ventura Micro / Award PCDISK.EXE v1.02c PCMCIA/ATA driver SeeAlso: AX=5D01h,INT 21/AX=440Dh --------X-2F5D01----------------------------- INT 2F U - PCMCIA - AWARD PCDISK - PUT INFO INTO DRIVER ??? AX = 5D01h ES:BX -> ??? Return: nothing Note: supported by Ventura Micro / Award PCDISK.EXE v1.02c PCMCIA/ATA driver SeeAlso: AX=5D00h,INT 21/AX=440Dh --------s-2F60FFDL00------------------------- INT 2F U - IPLAY v1.00b - INSTALLATION CHECK AX = 60FFh DL = 00h (function number) BX = 5344h ('SD') CX = 4D50h ('MP') Return: AX = 4F4Bh ('OK') if installed Program: IPLAY is the Inertia Player by Prime and Excalibur for .MODules (digitized music files) Note: in version 1.00b, any value for DL except 01h invokes this function SeeAlso: AX=60FFh/DL=01h --------s-2F60FFDL01------------------------- INT 2F U - IPLAY v1.00b - GET DATA SEGMENT AX = 60FFh DL = 01h (function number) BX = 5344h ('SD') CX = 4D50h ('MP') Return: AX = data segment Program: IPLAY is the Inertia Player by Prime and Excalibur for .MODules (digitized music files) SeeAlso: AX=60FFh/DL=00h --------v-2F6282----------------------------- INT 2F U - PC Tools v7.0+ VDEFEND, VSAFE, VWATCH, DATAMON - SET ??? ADDRESS AX = 6282h CX:DX -> ??? or 0000h:0000h DI = segment of ??? record (see #2071) or 0000h/FFFFh to ignore Return: BX = 0062h Note: if CX:DX = 0000h:0000h on entry, the ??? address is not changed (DATAMON only) SeeAlso: INT 13/AH=FAh"VSAFE",INT 21/AH=FAh"VDEFEND" Format of VSAFE/VWATCH record: Offset Size Description (Table 2071) 00h DWORD ??? 04h WORD offset of ??? in record's segment VSAFE 2.0 sets byte at +01h to 56h or 58h VWATCH 2.1 sets byte at +02h to 56h or 58h 06h 2 BYTEs ??? 08h BYTE ??? (01h/other) --------v-2F6284BX0000----------------------- INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - INSTALLATION CHECK AX = 6284h 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: AX=6284h/BX=0001h,INT 16/AX=FFA3h --------v-2F6284BX0001----------------------- INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET ??? AX = 6284h BX = 0001h CX = 0001h Return: AX:BX -> ??? data (see #2072) CX = BX SeeAlso: AX=6284h/BX=0000h Format of DPROTECT data for v9.0: Offset Size Description (Table 2072) 00h 5 BYTEs ??? 05h WORD resident code segment (may be segment of DWORD at +03h) 07h DWORD -> FAR function to sound alert tone ??? --------v-2F6284BX0002----------------------- INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - GET OPTIONS AX = 6284h BX = 0002h CX = 0002h Return: AX = options (see #2073) BX = ??? (0000h for v9) CX = AX DX = BX Note: also supported by DOS 6 UNDELETE which is licensed from PC Tools SeeAlso: AX=6284h/BX=0000h,AX=6284h/BX=0003h Bitfields for DATAMON/DPROTECT options: Bit(s) Description (Table 2073) 1 ??? 12 disabled 13 using Delete Sentry 14 using Delete Tracker --------v-2F6284BX0003----------------------- INT 2F U - PC Tools v7-8 DATAMON, v9+ DPROTECT - SET OPTION??? FLAGS AX = 6284h BX = 0003h CX = flags (see #2074) DX = flags bit 15: ??? Note: v9 DPROTECT only checks bit 12 of CX, and ignores DX entirely SeeAlso: AX=6284h/BX=0002h Bitfields for DATAMON/DPROTECT CX flags: Bit(s) Description (Table 2074) 3 ??? 5 ??? 10 ??? 12 disable DATAMON/DPROTECT --------v-2F6284BX0004----------------------- INT 2F U - PC Tools v8 DATAMON, v9+ DPROTECT - ??? AX = 6284h BX = 0004h CX = 0004h Return: AX = 5555h BX = ??? (0800h) CX = ??? (FCCCh for v8, FCCBh for v9) --------V-2F6400----------------------------- INT 2F - SCRNSAV2.COM - INSTALLATION CHECK AX = 6400h Return: AL = installation state 00h not installed FFh installed Program: SCRNSAV2.COM is a screen saver for PS/2s with VGA by Alan Ballard SeeAlso: INT 10/AX=5555h,INT 14/AX=AA01h Index: screen saver;SCRNSAV2 --------N-2F7000----------------------------- INT 2F - License Service API - INSTALLATION CHECK AX = 7000h CX = license server index (0000h to 001Fh) Return: AL = status 00h not installed FFh installed Notes: The License Service API is being maintained by Microsoft but is being supported by a large number of companies including Apple, Banyan, DEC, HP, Lotus, Microsoft, Novell, Software Publishers Association, and Wordperfect (not a complete list!) Each license service provider must search for the next free index slot to use SeeAlso: AX=7001h,AX=7003h,AX=7004h,AX=7005h --------N-2F7001----------------------------- INT 2F - License Service API - REQUEST LICENSE AX = 7001h CX = license server index (0000h to 001Fh) DS:DX -> SLSREQUEST structure (see #2075) Return: AX = status 0000h success else provider error code ES:BX = provider specific handle for the license context SeeAlso: AX=7002h,AX=7004h,AX=7005h Format of License Service SLSREQUEST structure: Offset Size Description (Table 2075) 00h DWORD (ret) status code 04h DWORD (ret) handle identifying context 08h DWORD (call) address of Publisher string 0Ch DWORD (call) address of Product string 10h DWORD (call) address of Version string 14h DWORD units required 18h DWORD address of comment string 1Ch DWORD address of SLSCHALLENGE structure (see #2076) Format of License Service SLSCHALLENGE structure: Offset Size Description (Table 2076) 00h DWORD algorithm (currently always 1) 04h DWORD secret to be challenged (1-255) 08h DWORD size of challenge in bytes (1-255) 0Ch N BYTEs challenge data --------N-2F7002----------------------------- INT 2F - License Service API - RELEASE LICENSE AX = 7002h CX = license server index (0000h to 001Fh) DS:DX -> SLSRELEASE structure (see #2077) ES:BX = provider specific handle for the license context Return: AL = status 00h not installed FFh installed SeeAlso: AX=7001h,AX=7005h Format of License Service SLSRELEASE structure: Offset Size Description (Table 2077) 00h DWORD handle indentifying license context 04h DWORD total units consumed 08h DWORD address of comment string --------N-2F7003----------------------------- INT 2F - License Service API - UPDATE AX = 7003h CX = license server index (0000h to 001Fh) DS:DX -> SLSUPDATE structure (see #2078) ES:BX = provider specific handle for the license context Return: AL = status 00h not installed FFh installed SeeAlso: AX=7004h,AX=7005h Format of License Service SLSUPDATE structure: Offset Size Description (Table 2078) 00h DWORD (ret) status code 04h DWORD (call) handle identifying license context 08h DWORD (call) total units consumed 0Ch DWORD additional units required 10h DWORD address of comment string 14h DWORD address of SLSCHALLENGE structure (see #2076) --------N-2F7004----------------------------- INT 2F - License Service API - GET ERROR AX = 7004h CX = license server index (0000h to 001Fh) DS:DX -> SLSGETERROR structure (see #2079) ES:BX = provider specific handle for the license context Return: AL = status 00h not installed FFh installed SeeAlso: AX=7000h,AX=7001h Format of License Service SLSGETERROR structure: Offset Size Description (Table 2079) 00h DWORD (ret) status code 04h DWORD handle identifying license context 08h DWORD error code 0Ch DWORD buffer size in bytes 10h N BYTEs data buffer --------N-2F7005----------------------------- INT 2F - License Service API - QUERY LICENSE AX = 7005h CX = license server index (0000h to 001Fh) DS:DX -> SLSQUERY structure (see #2080) ES:BX = provider specific handle for the license context Return: AL = status 00h not installed FFh installed SeeAlso: AX=7001h,AX=7002h Format of License Service SLSQUERY structure: Offset Size Description (Table 2080) 00h DWORD (ret) status code 04h DWORD handle identifying license context 08h DWORD information index 0Ch DWORD buffer size in bytes 10h N BYTEs data buffer --------K-2F7041BX4B70----------------------- INT 2F U - HP 200LX - KEY200 - INSTALLATION CHECK AX = 7041h BX = 4B70h Return: BX = 7965h if keyboard remapper KEY200.COM installed --------d-2F7200----------------------------- INT 2F - SRDISK v1.30+ - INSTALLATION CHECK AX = 7200h Return: AL = FFh if installed ES = segment of device driver header (see #2081) Program: SRDISK is a freeware resizeable RAMdisk by Marko Kohtala SeeAlso: AX=7201h Format of SRDISK device driver header: Offset Size Description (Table 2081) 00h 10 BYTEs same as standard device driver header (see #0953 at INT 21/AH=52h) 0Ah BYTE number of subunits (drives) supported by driver 0Bh 3 BYTEs signature "SRD" 0Eh 4 BYTEs memory type string ("XMS "/"EMS ") 12h 4 BYTEs ASCII driver version string "N.NN" 16h BYTE 00h 17h BYTE configuration format version (currently 00h or 01h) 18h WORD offset of drive configuration data SeeAlso: #0953 --------d-2F7201----------------------------- INT 2F - SRDISK v2.02 - GET CODE/DATA SEGMENT AX = 7201h Return: AL = FFh if installed ES = segment of device driver header (see #2081) Program: SRDISK is a freeware resizeable RAMdisk by Marko Kohtala SeeAlso: AX=7200h --------N-2F7A00----------------------------- INT 2F - Novell NetWare - LOW-LEVEL API (IPX) INSTALLATION CHECK AX = 7A00h Return: AL = status 00h not installed FFh installed ES:DI -> FAR entry point for routines accessed exclusively through INT 7A in NetWare versions through 2.0a. Call with same values as INT 7A ES:BX -> two bytes containing IPX major/minor version (IPXODI v2.12; BX unchanged by older IPX drivers) SeeAlso: AX=7AFFh/BX=0000h,AX=D800h,INT 64"Novell",INT 7A"Novell" --------N-2F7A10----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - GET TBMI STATUS AX = 7A10h Return: DH = major TBMI version number DL = minor TBMI version number (01h for v1.1) CX = segment address of TBMI resident part BX = status word of TBMI (see #2082) Note: TBMI is the Task-Switched Buffer Manager Interface SeeAlso: AX=7A11h,AX=7A12h,AX=7A13h,AX=7A14h Bitfields for NetWare TBMI status word: Bit(s) Description (Table 2082) 0 INT2F intercepted by TBMI 1 INT7A intercepted by TBMI 2 INT64 intercepted by TBMI 3-14 reserved or unused ??? 15 outstanding task ID was detected --------N-2F7A11----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT2F HANDLERS AX = 7A11h Return: ES:BX -> old INT 2F handler DS:DX -> TBMI INT 2F handler SeeAlso: AX=7A10h,AX=7A12h,AX=7A13h,AX=7A1Ah --------N-2F7A12----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT64 HANDLERS AX = 7A12h Return: ES:BX -> old INT 64 handler DS:DX -> TBMI INT 64 handler SeeAlso: AX=7A10h,AX=7A11h,AX=7A13h --------N-2F7A13----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - GET INT7A HANDLERS AX = 7A13h Return: ES:BX -> old INT 7A handler DS:DX -> TBMI INT 7A handler SeeAlso: AX=7A10h,AX=7A11h,AX=7A12h --------N-2F7A14----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - GET STATISTICS AX = 7A14h CX = statistic to retrieve 0000h available diagnostic functions??? Return: CX = maximum available function??? (000Ch for v2.0) 0001h buffers in use Return: CX = TBMI buffers currently in use 0002h maximum buffers used Return: CX = maximum number of buffers ever in use 0003h unavailable buffers Return: CX = count of unavailable TBMI buffers 0004h old interrupt usage Return: CX = TBMI accesses to intercepted old vectors INT 2F, INT 64, and INT 7A 0005h far call usage Return: CX = TBMI accesses to IPX/SPX far call handler (not including internal accesses) 0006h task buffering Return: CX = TBMI task buffering status (enabled/disabled or disable/enable switch count???) 0007h current task ID Return: CX = TBMI current task ID number (0000h if ???) 0008h outstanding ID count Return: CX = number of outstanding TBMI IDs 0009h configured ECBs Return: CX = number of TBMI Event Control Blocks configured 000Ah configured data ECBs Return: CX = number of TBMI data ECBs configured 000Bh configured sockets Return: CX = number of TBMI sockets configured (from NETCFG) 000Ch current sockets Return: CX = number of TBMI sockets currently in use Return: BX = maximum supported subfunction (000Ch) SeeAlso: AX=7A10h --------N-2F7A15----------------------------- INT 2F OU - Novell NetWare - TBMI v1.1 only - RESET ??? AX = 7A15h Return: BX = new value of ??? Desc: set ??? to its default value Note: this call is a NOP under TBMI v2.0 (TBMI2) SeeAlso: AX=7A17h --------N-2F7A16----------------------------- INT 2F OU - Novell NetWare - TBMI v1.1 only - ??? AX = 7A16h CX = ??? ??? Return: ??? Note: this call is a NOP under TBMI v2.0 (TBMI2) --------N-2F7A17----------------------------- INT 2F OU - Novell NetWare - TBMI v1.1 only - ??? AX = 7A17h ??? Return: BX = old value of ??? CX = new value of ??? Note: this call is a NOP under TBMI v2.0 (TBMI2) SeeAlso: AX=7A15h --------N-2F7A18----------------------------- INT 2F U - Novell NetWare - TASKID v1.0 - INSTALLATION CHECK AX = 7A18h Return: AL = FFh if installed BX = configuration flags (see #2083) CX = resident code segment SeeAlso: AX=7A10h Bitfields for NetWare TASKID configuration flags: Bit(s) Description (Table 2083) 0 INT 2F hooked 3 INT 08 hooked other unused --------N-2F7A19----------------------------- INT 2F U - Novell NetWare - TASKID v1.0 - GET INT 08 HANDLERS AX = 7A19h Return: AL = FFh DS:DX -> TASKID INT 08 handler ES:BX -> original INT 08 handler --------N-2F7A1A----------------------------- INT 2F U - Novell NetWare - TASKID v1.0 - GET INT 2F HANDLERS AX = 7A1Ah Return: AL = FFh DX:DX -> TASKID INT 2F handler ES:BX -> original INT 2F handler SeeAlso: AX=7A11h,AX=7A19h --------N-2F7A1B----------------------------- INT 2F U - Novell NetWare - TASKID v1.0 - GET DIAGNOSTICS INFORMATION AX = 7A1Bh CX = desired information 0000h supported functions 0001h TASKID ID number Return: CX = ID number 0002h set-ID count Return: CX = ID set count Return: AL = FFh BX = highest supported subfunction number (0002h) SeeAlso: AX=7A14h,AX=7A18h --------N-2F7A1C----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - ??? AX = 7A1Ch BP = ??? CX:DX = ??? Return: AX = 70FFh --------N-2F7A1D----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - ??? AX = 7A1Dh ??? Return: ES = ??? ??? SI destroyed --------N-2F7A1E----------------------------- INT 2F U - Novell NetWare - TBMI v1.1+ - ??? AX = 7A1Eh ES:SI -> ??? ??? Return: ??? --------N-2F7A20BX0000----------------------- INT 2F - Novell NetWare - Adv NetWare 4.0 DOS Requester - GET VLM CALL ADDRESS AX = 7A20h BX = 0000h Return: AX = 0000h on success (installed) ES:BX -> far call address for DOS Requester (see #2084) Notes: the DOS Requester replaces the NetWare Shell (ANETx, NETx) on NetWare LAN's as of the release of Advanced NetWare 4.0 (1993). It is backward compatible with NetWare 2.1x through 3.11 servers as well. Note that there was a NetWare 4.0 in the early 1980's, which can cause confusion. this call is used as the installation check by VLM.EXE, which is the loader for all the modules of the DOS Requester .VLMs are standard old .EXE format executables whose normal entry point merely terminates to prevent loading from the command line. The real entry point is found by looking at the VLM header at the beginning of the load image (see #2087) Index: installation check;NetWare 4.0 DOS Requester (Table 2084) Call DOS Requester entry point with: STACK: WORD destination function WORD destination VLM ID (see #2086) WORD source VLM ID (0000h = application program) registers as appropriate for function Return: AX = status code (0000h,8811h,8846h,8848h,8853h) (see #2085) other registers as appropriate for function STACK popped BP destroyed (Table 2085) Values for VLM status code: 0000h successful 88xxh error generated by requester 8801h invalid or non-attached connection handle 8803h cannot add CDS 8804h bad path 8805h error sending or receiving NCP packets 8811h nonexistent function called 8836h attempted function with invalid parameter 8846h ??? 8848h non-loaded or nonexistent VLM called 884Dh no more SFT entries (too many handles) 8850h too many reply fragments 8853h ??? 89xxh error generated by server low byte = return code from server (see also #1221,#1255) 8900h server successful 8901h out of disk space 897Eh NCP boundary check failed 897Fh ??? 8980h lock failed; file in use 8981h out of handles 8982h no open privileges 8983h hard (non-correctable) I/O error 8984h no creation privileges 8985h no create/delete privileges 8986h attempted to create a file which already exists read-only 8987h filename error during creation (wildcards in name) 8988h invalid file handle 8989h no search privileges 898Ah no deletion privileges 898Bh no rename privileges 898Ch no modify privileges 898Dh some affected files are in use 898Eh all affected files are in use 898Fh some affected files are read-only 8990h all affected files are read-only; volume read-only 8991h some files could not be renamed because target names already exist 8992h all affected names exist 8993h no read privileges 8994h no write privileges 8995h file detached 8996h server out of memory 8997h no disk space for spool file 8998h disk map error; volume does not exist 8999h directory full 899Ah attempt to rename across volumes 899Bh bad directory handle 899Ch invalid path; no more trustees 899Dh no directory handles 899Eh bad filename 899Fh directory active 89A0h directory not empty 89A1h directory I/O error 89A2h I/O lock error 89A3h-89BEh ??? 89BFh invalid name space 89C0h no account privileges 89C1h no account balance 89C2h credit limit exceeded 89C4h account disabled 89C5h login lockout (intruder detection activated) 89C6h no console rights 89C7h-89CFh 89D0h queue error 89D1h no queue 89D2h no queue server 89D3h no queue rights 89D4h queue full 89D5h no queue job 89D6h no job rights; unencrypted password 89D7h queue servicing error; duplicate password; bad account 89D8h queue not active; password too short 89D9h station not queue server; maximum logins exceeded 89DAh queue halted; bad login time 89DBh maximum queue servers; unauthorized login station 89DCh account disabled or expired 89DEh password expired (all grace logins used up) 89DFh password expired but login allowed (grace login) 89E0h-89E6h ??? 89E7h no disk track 89E8h property is not an item property; write to group 89E9h member exists 89EAh no such member 89EBh property is not a set property 89ECh no such set 89EDh property exists 89EEh object exists 89EFh illegal name 89F0h illegal wildcard 89F1h invalid bindery security level 89F2h not allowed to read object 89F3h not allowed to write/rename object 89F4h not allowed to delete object 89F5h not allowed to create object 89F6h not allowed to delete property 89F7h not allowed to create property; attempt to use non-local drive 89F8h not allowed to write property; already attached to server 89F9h not allowed to read property; no free connection slots 89FAh temporary remap error; no more server slots 89FBh no such property; invalid parameters 89FCh no such object; internet packet request canceled; unknown file server 89FDh bad station number; lock collision 89FEh directory locked; bindery locked; timeout 89FFh general error; hard error; lock error Note: some server-generated error codes have multiple interpretations; use the one appropriate to the failing call (Table 2086) Values for VLM identifier: 0001h VLM.EXE Virtual Loadable Modules manager (see also #2089) 0010h CONN.VLM connection table manager (see also #2090) 0020h TRAN.VLM transport protocol multiplexor (see also #2094) 0021h IPXNCP.VLM transport protocol implementation using IPX (see #2096) 0022h TCPNCP.VLM TCP/IP transport 0030h NWP.VLM NetWare protocol multiplexor (see also #2098) 0031h BIND.VLM bindery 0032h NDS.VLM NetWare Directory Services (see also #2099) 0033h PNW.VLM Personal NetWare 0034h RSA.VLM RSA encryption for directory services re-authentication 0040h REDIR.VLM DOS redirector (see also #2101) 0041h FIO.VLM file I/O (see also #2103) 0042h PRINT.VLM printer redirector (see also #2105) 0043h GENERAL.VLM misc functions for NETx and REDIR (see also #2107) 0050h NETX.VLM NetWare shell compatibility (see also #2109) 0060h AUTO.VLM auto-reconnect/auto-retry 0061h SECURITY.VLM enhanced security module (see #2110) 0100h NMR.VLM NetWare management responder 09F2h DRVPRN.VLM Desktop SNMP Services - Drive/Printer Mappings 09F5h SAA.VLM SAA client API for Netware 09F6h IPXMIB.VLM SNMP IPX-monitoring Module??? 09F7h PNWMIB.VLM Personal Netware SNMP Instrumentation Module 09F8h PNWTRAP.VLM Personal Netware SNMP Trap Module 09F9h MIB2PROT.VLM MIB-II Protocol Groups 09FAh MIB2IF.VLM MIB-II Interfaces Group 09FBh NVT.VLM ??? 09FCh WSTRAP.VLM Desktop SNMP Services - Trap Module 09FDh WSREG.VLM Desktop SNMP Services - Registration Module 09FEh WSASN1.VLM Desktop SNMP Services - ASN.1 Module 09FFh WSSNMP.VLM Desktop SNMP Services - Agent Module Format of VLM header: Offset Size Description (Table 2087) 00h DWORD -> initialization entry point 04h DWORD -> VLM API entry point 08h DWORD -> ??? entry point 0Ch DWORD -> ??? entry point 10h DWORD -> ??? entry point ... var DWORD 00000000h (end of entry point list) 4 BYTEs signature "NVlm" WORD VLM identifier (see #2086) ---v1.20+ --- 1Eh WORD ??? 20h WORD Transient Switch Count 22h WORD VLM Call Count 24h WORD Offset ControlBlocks (See #2088) 26h WORD Current VLMID 28h BYTE Memory Type 00h=Conventional 02h=EMS 04h=XMS 29h BYTE Modules Loaded 2Ah WORD BlockId 2Ch WORD Transient Block 2Eh WORD Global Segment 30h 3 DWORDs pointers to AsyncQueue head, tail, and s??? 3Ch 3 DWORDs pointers BusyQueue head, tail, and s??? 48h WORD ReEntrance Level 4Ah WORD Full Map Count 4Ch WORD ??? 4Eh 80 BYTEs ASCIZ configuration file filename Note: the number of entry points in the header is reported as "Func" in the VLM /D display. Format of VLM Control Block for VLM v1.20 [array]: Offset Size Description (Table 2088) 00h WORD Flag 02h WORD VLM Identifier (See #2086) 04h WORD Func 06h WORD Maps 08h WORD number of times called 0Ah WORD ??? 0Ch WORD Transient Segment 0Eh WORD Global Segment 10h WORD Address Low 12h WORD Address High 14h WORD TSegSize 16h WORD GSegSize 18h WORD SSegSize 1Ah BYTE VLMName[9] ASCIZ Note: this information is shown in VLM /d under the dashed line. There are as many 35-byte blocks as modules loaded SeeAlso: #2087 (Table 2089) Call VLM Manager (VLM.EXE, ID 0001h) with: Func Description/Registers 01h VLM Notify BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h VLM Statistics 04h VLM internal use BX = function 0000h get interrupt vector (calls INT 21/AH=35h) 0001h begin critical section (calls INT 2F/AX=1681h) 0002h end critical section (calls INT 2F/AX=1682h) 0003h ??? (Table 2090) Call Connection Manager (CONN.VLM, ID 0010h) with: Func Description/Registers 01h Conn Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h Conn Statistics CX = length of buffer ES:DI -> buffer for connection statistics (see #2091) Return: AX = status (0000h successful) 04h Conn Alloc Handle Return: AX = status (0000h successful) CX = connection handle 05h Conn Validate Handle CX = connection handle Return: AX = 0000h if valid handle 06h Conn Free Handle CX = connection handle Return: AX = status (0000h successful) 07h Conn Get Entry Field BH = connection parameter (see #2093) CX = connection handle DX = value if BH is non-array parameter DH = offset in array if BH is array parameter DL = number of bytes to copy if BH is array ES:DI -> return buffer if BH is array Return: AX = 0000h if successful DL/DX = value if non-array parameter DH = maximum number of bytes in buffer if array parameter DL = number of bytes copied if array BX destroyed 08h Conn Set Entry Field BH = connection parameter (see #2093) CX = connection handle DL/DX = value if BH is non-array parameter DH = offset in array if BH is array parameter DL = number of bytes to copy if BH is array DS:SI -> buffer if BH is array Return: AX = 0000h if successful DH = maximum number of bytes in buffer DL = number of bytes copied BX destroyed 09h Conn Reset Entry Field BH = connection parameter (see #2093) CX = connection handle Return: AX = 0000h if successful BX,DX destroyed 0Ah Conn Lookup Handle BL = lookup type (00h equal, 40h not equal) BH = connection parameter (see #2093) CX = connection handle, 0000h if first DL/DX = value if BH is non-array parameter DH = offset in array if BH is array parameter DL = number of bytes to copy if BH is array DS:SI (ES:DI???) -> buffer if BH is array Return: AX = 0000h if successful CX = handle matching given parameters 0Dh Conn Name Lookup CX = connection handle ES:DI -> 49-byte buffer for server name or 0000h:0000h Return: AX = 0000h if successful BX = length of server name ES:DI buffer filled if pointer not 0000h:0000h 0Eh Conn Name To Handle DS:SI -> uppercased server name CX = length of server name, 0000h if ASCIZ name Return: AX = error code or 0000h if successful CX = connection handle if successful 0Fh Conn Get Num Connections Return: AX = status (0000h if successful) DX = number of connections CX = segment of connection table first entry in table (See #2092) Format of VLM connection statistics: Offset Size Description (Table 2091) 00h WORD total length of statistics record (including this word) 02h WORD number of connection handles allocated 04h WORD average name length (configured in NET.CFG) 06h WORD maximum number of tasks (configured in NET.CFG) 08h WORD number of failed "allocate handle" calls 0Ah WORD number of failed "add name" calls 0Ch WORD number of failed task calls Note: some versions of the NetWare requester reportedly do not implement this correctly SeeAlso: #2090 Format of NetWare VLM Connection Table [array]: Offset Size Description (Table 2092) 00h WORD Protocol VLMid 0032(NDS) 0031(BIND) Func 07 equiv. 0033(PNW) 0000(unused) bh=01h 02h BYTE (connection status) bit 6: connection locked bh=16h bit 5: authenticated bh=03h bit 4: permanent bh=02h bit 2: broadcast msg waiting bh=12h 03h BYTE (connection capabilities) bit 5: Large Internet Packets none bit 3: Packet Burst Reset bh=07h bit 2: Max I/O bh=06h bit 1: SFT3 change bh=05h bit 0: Packet Burst Support bh=04h 04h WORD reference count bh=09h 06h WORD soft resource count bh=15h 08h BYTE NCP Order Number bh=0Eh 09h BYTE Server security options bh=14h bit 0: CRC enabled bit 1: packet signing required bit 5: packet signing enabled 0Ah BYTE OS Major Version bh=08h 0Bh BYTE OS Minor Version bh=08h 0Ch WORD Hops to Server bh=0Ah 0Eh WORD Maximum Packet Size for this connection bh=0Bh 10h WORD LIP Parameters bh=13h 12h WORD NCP Request Type bh=10h 14h BYTE NCP Sequence bh=0Ch 15h WORD Connection Number bh=0Dh 17h BYTE ??? none 18h WORD Transport VLMid 21(IPXNCP) 22(TCPNCP) bh=0Fh 1Ah BYTE Node Address[4] bh=11h 1Eh BYTE Network[6] bh=11h 24h BYTE Socket[2] bh=11h 26h BYTE Local Target[6] bh=11h 2Ch WORD Round Trip Time bh=11h 2Eh WORD ??? none SeeAlso: #2090 (Table 2093) Values for NetWare Connection Manager CEI (Connection Entry Information): number flags description 00h FR error 01h WL VLM id of transport protocol (NDS/BIND/PNW) 00h = wildcard 02h FR permanent flag (01h if connection is permanent) 03h F authenticated flag (01h if connection is authenticated) 04h F packet burst supported 05h FR SFT3 change status 06h FR connection needs maximum I/O transmission 07h FR packet burst reset needed 08h W server version 09h W reference count (tasks using connection, 00h = dynamic) 0Ah W distance to server associated with connection 0Bh W maximum packet size supported by transport protocol 0Ch B NCP sequence number 0Dh W connection number 0Eh B NCP order number 0Fh WL VLM id for transport protocol 00h = wildcard, 21h = IPX, 22h = TCP 10h W NCP request type 11h A transport specific buffer 12 byte server address 6 byte router address 2 byte round trip time 12h FR broadcast message waiting 13h W large internet packets supported 14h B security options bit 0: CRC enabled bit 1: packet signing enabled bit 5: packet signing active 15h W soft resource count 16h FR connection locked Note: flag meanings F=flag value B=byte value W=word value A=array R=resettable L=settable only before authentication others=read only SeeAlso: #2090 (Table 2094) Call TRAN.VLM (VLM ID 0020h) with: Func Description/Registers 01h TRAN Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h TRAN Statistics 06h TRAN Request Reply (see INT 21/AH=F2h) AL = request code (see #1391 at INT 21/AH=F2h) BH = error handler flag 00h default error handler 01h return network errors to caller 02h handle network errors in requester BL = request list length (max 5 fragments) (see #2095) CX = connection handle DH = 00h (reserved) DL = reply list length (max 5 fragments) (see #2095) DS:SI -> address list (each element is DWORD address + WORD length) ES:DI -> address list Return: AX = error code, 0000h if successful BX,DX destroyed reply buffer updated if successful 08h TRAN Schedule/Cancel Event 09h TRAN Get Max Phys Size ??? = subfunction 00h get maximum node size 01h get maximum route size to specified server 0Ah TRAN Broadcast Mux Format of TRAN.VLM request/reply fragment descriptor (array): Offset Size Description (Table 2095) 00h DWORD address of buffer 04h WORD length of buffer (Table 2096) Call IPXNCP.VLM (VLM ID 0021h) with: Func Description/Registers 01h IPX Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h IPX Statistics CX = length of buffer ES:DI -> buffer for statistics (see #2097) Return: AX = status (see #2085) 06h IPXNCP Request Reply??? functionally equivalent to Tran Request Reply??? Format of NetWare IPX statistics: Offset Size Description (Table 2097) 00h WORD size of statistics, including this word 02h DWORD number of TRAN Request Reply calls made 06h WORD number of user aborts 08h WORD number of user retries 0Ah WORD IPX receive errors 0Ch WORD IPX send errors 0Eh WORD number of unrecognized responses 10h WORD number of bad connection numbers in requests 12h WORD number of bad sequence responses 14h WORD receive buffer overflows 16h WORD number of times route to attached server was lost 18h WORD number of times server responded "busy" 1Ah WORD number of unknown "NCPRepCompCode" values 1Ch WORD number of bad connection numbers in responses 1Eh WORD padding for NETX compatibility 20h WORD padding for NETX compatibility 22h WORD number of attach requests to server without route 24h WORD number of times server responded to attach without slot 26h WORD number of times a server went down during a request 28h DWORD same-server optimizations 2Ch WORD local route changes 2Eh WORD IPX CRC errors 30h WORD number of user fails 32h BYTE flag: CRCs enabled 33h BYTE flag: LIP enabled 34h BYTE flag: configurable NET error handler SeeAlso: #2096 (Table 2098) Call NWP.VLM (VLM ID 0030h) with: Func Description/Registers 01h NWP Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h NWP Statistics 04h NWP Connect 05h NWP Disconnect 06h NWP Attach 08h NWP Login 09h NWP Logout 0Ah NWP Get Bindery Object/Get Message Handler BX = subfunction 0002h set workstation's broadcast message mode 0003h get object ID for object name 0004h get object name for object ID 0005h retrieve broadcast message 0Ch NWP context (passed through to NDS.VLM's function 0Ch) (see #2099) 0Eh NWP Ordered Send To All 0Fh NWP Preferred Handler BX = subfunction 0000h get preferred connection name DX = VLM ID (NDS/BIND/PNW) ES:DI -> 49-byte buffer for connection name Return: ES:DI buffer filled 0001h set preferred connection name DX = VLM ID (NDS/BIND/PNW) CX = length of connection name (may be 0000h, max 48) DS:SI -> name of preferred connection 0002h get preferred connection ID DX = VLM ID (NDS/BIND/PNW) Return: AX = status CX = connection handle if successful 0003h get server address CX = connection handle or 0000h DS:SI -> name to be resolved ES:DI -> 12-byte buffer for server address 10h NWP ??? BX = subfunction 0001h get security flags (see also INT 21/AX=B301h) Return: BX:CX indicates signature level = 0100h:0000h if signature level=0 = 0300h:0000h if signature level=1 = 0302h:0000h if signature level=2 = 0302h:0202h if signature level=3 0002h create session keys (see also INT 21/AX=B302h) CX = server connection handle DS:SI -> 24-byte input buffer 0004h set security flags (see also INT 21/AX=B304h) BL:CL = new flags 0006h renegotiate security level (see also INT 21/AX=B306h) CX = server connection number (01h-08h) (Table 2099) Call NDS.VLM (VLM ID 0032h) with: Func Description/Registers 01h NDS Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h NDS Statistics 06h NDS Attach CX = allocated connection handle DS:SI -> server address 08h NDS Fragment Requst Return: AX = 8836h (invalid parameter) Note: this function was documented but does not work 0Ch NDS context BX = subfunction 0000h get default name context CX = length of buffer for default context ES:DI -> buffer to receive name Return: ES:DI buffer filled 0001h set default context CX = length of new default context name DS:SI -> context name 0002h read from TDS CX = reply buffer length DX = 0110h ??? SI = offset in TDS ES:DI -> reply buffer 0003h write to TDS 0005h "NWDSChangeResourceConnection/Lock Connection" CX = connection handle DL = subfunction (00h-09h) 04h = NWDSChangeResourceOnConnection 07h = NWDSChangeResourceOnConnection 08h = NWDSLockConnection 0006h NDS change connection state (internal) CX = connection handle AL = 00h or 01h 0007h "NWDSSetMonitoredConnection" AX = subfunction 0001h get monitored connection Return: CX = connection handle??? 0002h set monitored connection CX = connection handle??? 0008h send NDS request AX = NDS function CX = connection handle DS:SI -> request buffer descriptor (see #2100) ES:DI -> reply buffer descriptor (see #2100) 000Ah set NDS CEI Info DL = buffer length DS:SI -> input buffer Format of NetWare NDS request/reply buffer descriptor: Offset Size Description (Table 2100) 00h DWORD -> buffer 04h WORD length of buffer in bytes SeeAlso: #2099 (Table 2101) Call REDIR.VLM (VLM ID 0040h) with: Func Description/Registers 01h Redir Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h Redir Statistics 04h Redir Build SFT (see INT 21/AH=B4h"NetWare") CX = connection handle ES:DI -> SFT build request (see #2102) Return: AX = 0000h if successful BX = DOS file handle 05h Redir DOS To NW Handle 08h Redir Specific BX = 0000h get item DS:SI -> ASCIZ string "LPTx" (x='1'-'9') or drive spec ("d:") ES:DI -> 512-byte reply buffer for "\\server\resource",00h,"path",00h Format of NetWare SFT build request: Offset Size Description (Table 2102) 00h 6 BYTEs NetWare handle 06h WORD reserved for internal use 08h 14 BYTEs ASCIZ filename 16h BYTE DOS file attributes bit 7: file is shareable 17h BYTE reserved 18h LONG file size 1Ch WORD creation date 1Eh WORD last access date 20h WORD last update date 22h WORD last update time (Table 2103) Call File I/O FIO.VLM (VLM ID 0041h) with: Func Description/Registers 01h FIO Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h FIO Statistics CX = length of buffer ES:DI -> buffer for statistics (see #2104) Return: AX = status (0000h if successful) buffer filled if successful 04h FIO Remote Copy Format of NetWare FIO statistics: Offset Size Description (Table 2104) 00h WORD length of statistics record (including this word) 02h WORD number of read requests 04h WORD number of write requests 06h WORD number of cache read hits 08h WORD number of cache write hits 0Ah WORD number of cacheable files with free blocks 0Ch WORD number of cacheable files without free blocks 0Eh WORD number of standard read requests 10h WORD number of standard write requests 12h WORD number of burst read requests 14h WORD number of burst write requests 16h BYTE flag: cache writes enabled 17h BYTE flag: true commits enabled 18h WORD number of cache blocks 1Ah WORD size of a cache buffer 1Ch WORD number of ECBs for packet bursts (0000h if bursts disabled) SeeAlso: #2103 (Table 2105) Call PRINT.VLM (VLM ID 0042h) with: Func Description/Registers 01h Print Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h Print Statistics 04h Print Get/Set Data BX??? = subfunction 00h set printer control flags 01h get printer control flags 02h set extended printer control flags 03h get extended printer control flags 05h Print Open Capture File 07h Print Get Num Of Printers 08h Print Redirection BX = subfunction 0000h redirect device to queue AX = length of queue name, 0000h to use queue ID DS:SI -> uppercased ASCIZ queue name ES:DI -> queue ID, 0000h:0000h to use queue name 0001h test whether device is redirected 0002h cancel redirection 0003h redirect device to file AX = 0000h or 4E57h ('NW') ES:DI -> ASCIZ path of file 0004h get extended redirection information (see #2106) CX = connection handle DX = printer (0=LPT1) Return: AX = 0000h if successful 09h Print Flush And Close Job 0Ch Print Get/Set Banner Name Format of PRINT.VLM standard print control information: Offset Size Description (Table 2106) 00h BYTE PFStatus (reserved, 00h) 01h BYTE print flags (default 80h) bit 2: release job for printing if capture interrupted bit 3: suppress form feed bit 4: notify bit 6: text file bit 7: print banner 02h BYTE tab size (01h-12h, default 08h) 03h BYTE number of copies (default 01h) 04h BYTE ??? 05h BYTE form type to be mounted in printer (default 00h) 06h BYTE reserved (00h) 07h 14 BYTEs banner 15h BYTE capture printer (LPT) number 16h WORD capture timeout in seconds 18h BYTE job concatenation flag (00h or 01h, default 00h) 19h BYTE maximum lines per page (default 66) 1Ah BYTE ??? 1Bh BYTE maximum characters per line (default 132) 1Ch BYTE ??? 1Dh 13 BYTEs name of form to be mounted in printer 2Ah BYTE flag: capture active (00h or FFh, default 00h) 2Bh BYTE flag: capturing to file (00h or 01h, default 00h) 2Ch BYTE flag: timeout field is being decremented (default 00h) 2Dh DWORD -> printer setup string 31h DWORD -> printer reset string 35h BYTE reserved (01h) 36h BYTE flag: job has started printing (00h or FFh, default 00h) 37h BYTE flag: job placed in queue (00h or FFh, default 00h) 38h BYTE flag: PJobValid (00h or FFh, default 00h) 39h DWORD print-queue ID 3Dh BYTE low byte of print-job number (default 00h) 3Eh BYTE ??? 3Fh BYTE number of chars in INT 17h print cache buffer (default 00h) 40h BYTE ??? 41h BYTE high byte of print-job number (default 00h) SeeAlso: #2105 (Table 2107) Call GENERAL.VLM (VLM ID 0043h) with: Func Description/Registers 01h Gen Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h Gen Statistics CX = length of statistics buffer ES:DI -> buffer for statistics (see #2108) Return: AX = status (see #2085) 04h Gen Get/Set Primary BX = subfunction 0001h get primary connection CX = primary connection handle to be retrieved Return: AX = status (see #2085) CX = primary connection handle 0002h set primary connection CX = primary connection handle to be stored Return: AX = status (see #2085) 06h Gen Specific BX = subfunction 0000h get command processor and master environment addresses Return: DX = segment of master environment ES:DI -> command processor's private COMSPEC= copy 0001h get default or primary connection Return: AX = status (0000h successful) CX = connection handle if successful 0002h last queue information AL = operation 00h zap 01h set 02h get DI:DX = queue file handle CX = connection handle Return: AX = status (0000h successful) DI:DX = queue file handle CX = connection handle or 0000h if queue info invalid 0003h get/set machine name(s) AX = name type 00h get short machine name 02h get long machine name 04h set short machine name 06h set long machine name 08h get DOS name 0Ah set DOS name ES:SI -> ASCIZ name if setting Return: AX = status (0000h if successful) ES:SI -> ASCIZ name if getting 0004h set per-task EXEC search mode Return: AX = status (0000h if successful) 09h Gen Return Drive Info BX = subfunction 0000h get first available drive Return: AX = status (see #2085) BX = drive letter of first drive 0001h get Lastdrive Return: AX = status (see #2085) CH = number lastdrive 1=A: - 1Ah=Z: Format of NetWare GENERAL.VLM statistics: Offset Size Description (Table 2108) 00h WORD size of statistics record, including this word 02h DWORD previous INT 21 vector SeeAlso: #2107 (Table 2109) Call NETX.VLM (VLM ID 0050h) with: Func Description/Registers 01h NetX Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h NetX Statistics (Table 2110) Call SECURITY.VLM (VLM ID 0061h) with: Func Description/Registers 01h Security Get Version BX = function 0000h get version Return: AX = status (see #2085) BX = major version of VLM supported (0001h) CX = minor version of VLM supported (0000h) 03h Security Statistics 04h ??? AL = subfunction 01h compute session key DS:SI -> 24-byte input buffer ES:DI -> 8-byte output buffer --------N-2F7A20BX0001----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM CallA ADDRESS AX = 7A20h BX = 0001h Return: AX = 0000h if request was handled ES:BX -> CallA entry point (see #2111) (Table 2111) Call VLM CallA entry point with: AX = function 0000h submit 0001h cancel (not implemented) ES:DI -> Overlay Asynchronous Control Block structure (see #2112) Format of Overlay Asynchronous Control Block (OACB): Offset Size Description (Table 2112) 00h DWORD link to next OACB, 0000h:0000h if last 04h DWORD callback address or 0000h:0000h 08h BYTE InUse flag (00h if complete) 09h BYTE flag, reserved for VLM use 0Ah WORD destination VLM 0Ch WORD destination function 0Eh WORD temporary storage for VLM.EXE 10h 6 BYTEs reserved 16h 6 DWORDs EAX,EBX,ECX,EDX,ESI,EDI 2Eh 4 WORDs DS,ES,FS,GS (FS and GS not used) --------N-2F7A20BX0002----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM MULTIPLEX ADDRESS AX = 7A20h BX = 0002h Return: AX = 0000h ES:BX -> VLM multiplex entry point (see #2113) Note: for v1.10, this function is only available while VLM.EXE is loading the .VLM modules, because ES is destroyed on return (Table 2113) Call DOS Requester entry point with: BX = function??? 0000h DX = ??? DI = ??? BP = ??? 0002h CX = ??? 0003h DX = ??? BP = ??? 0006h AH = subfunction??? AL = ??? STACK: variable (0, 4, 10, 14 bytes seen) --------N-2F7A20BX0003----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM PARSE API ADDRESS AX = 7A20h BX = 0003h Return: AX = 0000h if request was handled ES:BX -> VLM parse API entry point --------N-2F7A20BX0004----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM MULTICAST CALLOUT AX = 7A20h BX = 0004h Return: AX = 0000h if request was handled ES:BX -> VLM multicast data (see #2114) Format of DOS Requester data: Offset Size Description (Table 2114) 00h DWORD pointer to ??? (code) 04h 4 BYTEs ??? 08h DWORD pointer to ??? (code) (see #2115) ??? (Table 2115) Call offset 08h function with: AL = function (00h-07h) ??? Return: ??? --------N-2F7A20BX0005----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM INT 24 ADDRESS AX = 7A20h BX = 0005h Return: AX = 0000h if request was handled ES:BX -> VLM INT 24 handler --------N-2F7A20BX0006----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0006h Return: AX = 0000h if request was handled ES:BX -> ??? entry point (RETF in v1.03 and v1.10) --------N-2F7A20BX0007----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0007h Return: AX = 0000h ES:BX -> ??? entry point (RETF in v1.03 and v1.10) --------N-2F7A20BX0008----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0008h Return: AX = 0000h ES:BX -> ??? entry point (RETF in v1.03 and v1.10) --------N-2F7A20BX0080----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0080h Return: AX = 0000h ES:BX -> ??? entry point (RETF in v1.03 and v1.10) Note: this function is identical to AX=7A20h/BX=0006h in v1.03 and v1.10 --------N-2F7A20BX0081----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0081h Return: AX = 0000h ES:BX -> ??? entry point (RETF in v1.03 and v1.10) Note: this function is identical to AX=7A20h/BX=0007h in v1.03 and v1.10 --------N-2F7A20BX0082----------------------- INT 2F - Novell NetWare - DOS Requester v1.03+ - GET ??? ENTRY POINT AX = 7A20h BX = 0082h Return: AX = 0000h ES:BX -> ??? entry point (RETF in v1.03 and v1.10) Note: this function is identical to AX=7A20h/BX=0008h in v1.03 and v1.10 --------N-2F7A21----------------------------- INT 2F C - Novell NetWare - DOS Requester - BROADCAST CALLBACK AX = 7A21h CX = server connection (FFFFh if message from Personal NetWare user) interrupts disabled Return: CX = 0000h if broadcast handled interrupts disabled Note: this function is only linked into INT 2F when INT 21/AH=DEh/DL=05h has been issued SeeAlso: AX=7A22h,AX=7A85h,INT 21/AH=DEh --------N-2F7A22----------------------------- INT 2F C - Novell NetWare - DOS Requester - BROADCAST/SFT3 INFORM AX = 7A22h DL = function 21h ('!') broadcast waiting for workstation 40h ('@') SFT3 server-change inform BX = transport type 0021h IPX 0022h TCP ES:SI -> transport-specific data block (ECB for IPX, undefined for TCP) interrupts disabled Return: AX = 0000h if event handled, unchanged if not interrupts disabled Note: this callback is made from within a hardware interrupt handler; a separate call to AX=7A21h is made once the system is in a safe state for receiving the message SeeAlso: AX=7A21h --------N-2F7A2F----------------------------- INT 2F U - Novell NetWare - IPXODI v2.12 - GET GNMA SUPPORT AX = 7A2Fh Return: AX = 0000h if supported and active BX = support level (0001h) ES:DI -> GNMA entry point (see #2116) Program: GNMA is the Generic NetWare Management Agent Note: IPXODI v2.12 is distributed as part of the Personal NetWare system bundled with Novell DOS 7 SeeAlso: INT 7A/BX=001Fh (Table 2116) Call IPXODI GNMA entry point with: BX = function 0000h ??? ES:SI -> ??? data 0001h ??? AX = ??? Return: ES:SI -> ??? data 0002h get ??? address Return: ES:SI -> ??? buffer 0003h send SPX packet??? AL = ??? CX = ??? DX = ??? SI = ??? Return: ??? (registers from a call to INT 7A/BX=0016h) Return: BX corrupted --------N-2F7A2FBX0EDC----------------------- INT 2F U - Personal NetWare - HRMIB - UNINSTALL AX = 7A2Fh BX = 0EDCh ('EDC' = Novell European Development Center) Return: ??? SeeAlso: AX=7AA0h --------N-2F7A40----------------------------- INT 2F U - Novell NetWare - TCP/IP Protocol Stack - INSTALLATION CHECK AX = 7A40h Return: AX = 7AFFh if installed BX = ??? bit flags (see #2117) CX = version (CH=major, CL=minor) DX = 0000h ES:DI -> entry point for TCP/IP stack (see #2118) Notes: Novell's LAN Workplace for DOS TCPIP.EXE also supports this interface this function is also supported by the Beame&Whiteside BWLWP40 shim, but it only returns AL and ES:DI, and does not support AX=7A41h SeeAlso: AX=7A41h,INT 15/AX=DE2Eh,INT 60"Excelan" Bitfields for returned BX: Bit(s) Description (Table 2117) 0 ??? 1 ??? 15-2 reserved??? (Table 2118) Call NetWare TCP/IP entry point with: ES:SI -> parameter block (see #2119) Return: ES:SI parameter block updated Format of NetWare TCP/IP parameter block: Offset Size Description (Table 2119) 00h 4 BYTEs ??? 04h WORD (ret) ??? 06h WORD (ret) ??? 08h DWORD -> FAR routine called if bit 7 of function code set 0Ch BYTE flags??? 0Dh 7 BYTEs ??? 14h BYTE (ret) ??? 15h BYTE (call) function code (bit 7 set if ???) (see #2120) 16h BYTE socket number 17h BYTE (ret) result or error code 18h 4 WORDs parameter words 0 to 3 (see #2120 for usage) 20h WORD length of packet sent/received 22h WORD number of pointer/length pairs following 24h 6N BYTEs buffer descriptors, each Offset Size Description 00h DWORD pointer to buffer 04h WORD length of buffer (Table 2120) Values for NetWare TCP/IP function code: 01h "accept" 02h "bind" 03h close socket Call: socket number field set 04h "connect" 05h get IP address Call: socket number field set to 0000h Return: parameter words 1 and 2 contain caller's IP address 06h get hardware address 07h "getpeername" 08h get socket name 0Ah get netmask 0Bh "ioctl" 0Ch "listen" 0Dh "select" 10h "shutdown" 11h open socket Call: socket number field set to 0000h parameter word 0 = desired protocol (6 = TCP, 17 = UDP) Return: socket number set 12h "read" 13h "recvfrom" Call: socket number set packet length and buffer descriptors set Return: packet length and receive buffers updated parameter word 1 = source port number parameter words 2 and 3 = source IP address 14h "write" 15h "sendto" Call: socket number set flags field = ??? parameter word 0 = 0000h parameter word 1 = destination port number parameter words 2 and 3 = destination IP address packet length and buffer descriptors set 16h get BOOTP data Note: these functions are based on the Unix socket interface --------N-2F7A41----------------------------- INT 2F - Novell NetWare - TCP/IP Protocol Stack - WINDOWS SUPPORT??? AX = 7A41h ES:DI -> FAR entry point for ??? (will be called with BX=1,2,3,4) Return: AX = 7AFFh if supported BX = ??? (see #2117) CX = version (CH=major, CL=minor) DX = 0000h ES:SI -> DWORD containing passed value of ES:DI ES:DI -> entry point for TCP/IP stack Notes: Novell's LAN Workplace for DOS TCPIP.EXE also supports this interface the pointer which is set to ES:DI is cleared to 0000h:0000h when a Windows exit broadcast is received SeeAlso: AX=7A40h --------N-2F7A42----------------------------- INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ??? ENTRY POINT AX = 7A42h Return: AX = 7AFFh if supported ES:DI -> ??? entry point (see #2121) (Table 2121) Call NetWare TCPIP.EXE entry point with: DX = ??? ES:DI -> ??? (see #2122) Return: AX = 0000h other registers destroyed Format of data buffer: Offset Size Description (Table 2122) 00h WORD offset of WORD ??? or 0000h 02h WORD offset of DWORD ??? or 0000h 04h WORD offset of DWORD ??? or 0000h --------N-2F7A43----------------------------- INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ??? AX = 7A43h Return: AX = 7AFFh if supported DX = offset of ??? SeeAlso: AX=7A44h --------N-2F7A44----------------------------- INT 2F - Novell NetWare - TCPIP.EXE v4.1 - SET ??? AX = 7A44h DX = offset of ??? (see AX=7A43h) Return: AX = 7AFFh if supported SeeAlso: AX=7A43h --------N-2F7A4C----------------------------- INT 2F - Novell NetWare - TCPIP.EXE v4.1 - GET ??? AX = 7A4Ch Return: AX = 7AFFh if supported BX = ??? (0037h) CX = ??? (001Ch) --------N-2F7A4DBX0001----------------------- INT 2F - Novell NetWare - ??? AX = 7A4Dh BX = 0001h ES:DI -> ??? Return: AL = FFh if ??? ES:DI -> ??? Note: called by NETBIOS.EXE v3.01 --------N-2F7A4E----------------------------- INT 2F - Novell LAN Workplace for DOS - RARPD.EXE - INSTALLATION CHECK AX = 7A4Eh Return: AX = 7AFFh if installed SeeAlso: AX=7A4Fh"RARPD" --------N-2F7A4F----------------------------- INT 2F - Novell LAN Workplace for DOS - RARPD.EXE - UNINSTALL AX = 7A4Fh Return: AX = 7AFFh if installed DX,ES destroyed Note: this call conflicts with SNMP.EXE (both RARPD and SNMP are supplied with LAN Workplace for DOS!), such that running SNMP will uninstall RARPD as SNMP checks whether it is already installed! SeeAlso: AX=7A4Eh"RARPD",AX=7A4Fh/BX=0001h --------N-2F7A4FBX0001----------------------- INT 2F - Novell NetWare - SNMP.EXE - INSTALLATION CHECK AX = 7A4Fh BX = 0001h Return: AX = 7AFFh if installed Note: this call conflicts with RARPD.EXE (both SNMP and RARPD are supplied with LAN Workplace for DOS!), such that running SNMP will uninstall RARPD as SNMP checks whether it is already installed! SeeAlso: AX=7A4Fh"RARPD",AX=7A4Fh/BX=0002h --------N-2F7A4FBX0002----------------------- INT 2F - Novell NetWare - SNMP.EXE - ??? AX = 7A4Fh BX = 0002h Return: AL = status 4Fh if failed FFh if successful SeeAlso: AX=7A4Fh/BX=0001h --------N-2F7A80----------------------------- INT 2F C - Novell NetWare - SHELL 3.01d BROADCAST - ABNORMAL EXIT AX = 7A80h Return: nothing Notes: called on abnormal exit of the NetWare shell to notify other Novell TSRs that it is unsafe to call the shell in the future. must be passed through so that all interested programs see the exit on receiving this call, IPXODI clears an internal pointer to a default value; Novell's NETBIOS.EXE clears its INT 21h pointer to 0000h:0000h and stops calling it SeeAlso: AX=7A81h --------N-2F7A81----------------------------- INT 2F C - Novell NetWare - SHELL 3.01d BROADCAST - SET SHELL INT 21 HANDLER AX = 7A81h CX:DX -> shell's INT 21h entry point Return: nothing Notes: the shell calls this function as it loads to allow interested TSRs and drivers to make a local copy of the shell's entry point must be passed through so that all interested programs see it --------N-2F7A85----------------------------- INT 2F C - Novell NetWare - shell 3.01 - BROADCAST INFORM AX = 7A85h CX = broadcast server number Return: CX = 0000h if broadcast message handled by another program CX unchanged if broadcast not handled SeeAlso: AX=7A21h --------N-2F7A90----------------------------- INT 2F U - Novell NetWare - NETBIOS.EXE 3+ - INSTALLATION CHECK AX = 7A90h Return: AL = 00h if present BX = ??? CX = PSP segment of NETBIOS resident code SeeAlso: AX=7AFEh --------N-2F7AA0----------------------------- INT 2F U - Personal NetWare - HRMIB - ??? AX = 7AA0h BX = function 0000h ??? 0001h ??? Return: ??? SeeAlso: AX=7A2Fh/BX=0EDCh --------N-2F7AC1----------------------------- INT 2F - LAN HiJack - LHR - DISABLE??? AX = 7AC1h Program: LAN HiJack is a NetWare utility by KDS Software which allows a user to take over control of a workstation remotely; LHR is the program run on the slave workstation SeeAlso: AX=7AC8h,AX=7AC9h,AX=7ACFh --------N-2F7AC2----------------------------- INT 2F - LAN HiJack - LHR - SYNCHRONIZE SHIFT STATES??? AX = 7AC2h Note: sets BIOS keyboard status byte to an internal variable SeeAlso: AX=7AC3h,AX=7ACFh --------N-2F7AC3----------------------------- INT 2F - LAN HiJack - LHR - CLEAR ??? FLAG AX = 7AC3h SeeAlso: AX=7AC2h,AX=7ACFh --------N-2F7AC8----------------------------- INT 2F - LAN HiJack - LHR - ENABLE FUNCTIONS AX = 7AC8h BL = function(s) to enable (see #2123) SeeAlso: AX=7AC1h,AX=7AC9h,AX=7ACFh Bitfields for LAN HiJack function(s) to enable/disable: Bit(s) Description (Table 2123) 0 ??? 1 remote keyboard enabled 2 support remote's mouse 3-7 unused --------N-2F7AC9----------------------------- INT 2F - LAN HiJack - LHR - DISABLE FUNCTIONS AX = 7AC9h BL = function(s) to disable (see #2123) SeeAlso: AX=7AC1h,AX=7AC8h --------N-2F7ACA----------------------------- INT 2F - LAN HiJack - LHJ - ??? AX = 7ACAh BL = ??? Return: ??? Program: LAN HiJack is a NetWare utility by KDS Software which allows a user to take over control of a workstation remotely; LHJ is the program run on the controlling workstation --------N-2F7ACB----------------------------- INT 2F - LAN HiJack - LHJ - ??? AX = 7ACBh BX = ??? Return: ??? Note: this function appears to be related to the keyboard SeeAlso: AX=7ACCh --------N-2F7ACC----------------------------- INT 2F - LAN HiJack - LHJ - ??? AX = 7ACCh BX = ??? Return: ??? Note: this function appears to be related to the mouse SeeAlso: AX=7ACBh --------N-2F7ACFBX0000----------------------- INT 2F - LAN HiJack - LHR - INSTALLATION CHECK AX = 7ACFh BX = 0000h Return: BX = segment of resident code if installed Program: LAN HiJack is a NetWare utility by KDS Software which allows a user to take over control of a workstation remotely; LHR is the program run on the slave workstation --------N-2F7AF0----------------------------- INT 2F - Novell NetWare - DOSNP.EXE v1.30G - INSTALLATION CHECK AX = 7AF0h Return: AL = FFh if present ES = 7AF0h CX = PSP segment of resident code --------N-2F7AF1----------------------------- INT 2F - Novell NetWare - Access Server Driver - INSTALLATION CHECK AX = 7AF1h BL = sequence number (01h first driver, 02h second, 00h no driver) Return: AX <> 7AF1h if present BH = total number of drivers ---if BL nonzero on entry--- AL = number of ports provided by specified driver ES:DI -> driver entry point (see #2124,#2125,#2126,#2127,#2128,#2129,#2130,#2131) ES:DX -> ID string SeeAlso: INT 7A/BX=001Ch (Table 2124) Call Access Server driver "initialize port" function with: AH = 01h AL = port number (00h-0Fh) ES:BX -> configuration parameter block (see #2137) interrupts disabled Return: CF clear if successful CF set on error SeeAlso: #2125 (Table 2125) Call Access Server driver "get port status" function with: AH = 02h AL = port number (00h-0Fh) interrupts disabled Return: CF clear if successful BL = transmitter status (see #2134) BH = receiver status (see #2135) DL = external status signals (see #2136) CF set on error interrupts disabled SeeAlso: #2124,#2126,#2129 (Table 2126) Call Access Server driver "get input from port" function with: AH = 03h AL = port number (00h-0Fh) CX = size of data buffer ES:BX -> buffer for data interrupts disabled Return: CF clear if successful CF set on error interrupts disabled CX = number of bytes read Note: the driver will add a NUL to the buffer when a break signal is detected SeeAlso: #2126,#2127 (Table 2127) Call driver "send output data to port" function with: AH = 04h AL = port number (00h-0Fh) CX = number of bytes to send ES:BX -> buffer containing data interrupts disabled Return: CF clear if successful CF set on error interrupts disabled CX = number of bytes actually written SeeAlso: #2126,#2128 (Table 2128) Call driver "get I/O character counts" function with: AH = 05h AL = port number (00h-0Fh) interrupts disabled Return: CF clear if successful BX = number of bytes pending transmission CX = number of bytes available for reading CF set on error interrupts disabled SeeAlso: #2126,#2127 (Table 2129) Call driver "control XON/XOFF" function with: AH = 06h AL = port number (00h-0Fh) DL = new state (00h software flow control disabled, else enabled) interrupts disabled Return: CF clear if successful CF set on error interrupts disabled SeeAlso: #2130 (Table 2130) Call driver "get error counts and statistics" function with: AH = 07h AL = port number (00h-0Fh) ES:BX -> buffer for statistics (see #2138) interrupts disabled Return: CF clear if successful ES:BX buffer filled CF set on error interrupts disabled SeeAlso: #2131,#2132,#2133 (Table 2131) Call driver "general request" function with: AH = 08h AL = port number (00h-0Fh) DX = requested operations bit 0: flush transmit buffers bit 1: flush receive buffers bit 4: define XON/XOFF characters ES:BX -> XON/XOFF characters (see #2139) if DX bit 4 set interrupts disabled Return: CF clear if successful CF set on error interrupts disabled (Table 2132) Call driver "deadman timer management" function with: AH = 09h AL = port number (00h-0Fh) BX = next time interval in seconds (0000h to disable timer) interrupts disabled Return: CF clear interrupts disabled SeeAlso: #2133 (Table 2133) Call driver "get buffer sizes" function with: AH = 0Ah AL = port number (00h-0Fh) interrupts disabled Return: CF clear if successful BX = size of transmit buffer CX = size of receive buffer CF set on error interrupts disabled SeeAlso: #2132 (Table 2134) Values for Access Server transmitter status: 00h uninitialized 01h ready, not transmitting 02h transmitting 03h XOFF received 04h transmitting, buffer full 05h XOFF received and buffer full (Table 2135) Values for Access Server receiver status: 00h uninitialized 01h ready 02h receive buffer full, data may have been lost Bitfields for external status signals: Bit(s) Description (Table 2136) 7,6 undefined 5 CTS active 4 DSR active 3 DCD active 2,1 undefined 0 ring indicator Format of Access Server configuration parameter block: Offset Size Description (Table 2137) 00h BYTE receive baud rate index 00h 50 bps, 01h 75 bps, 02h 110 bps, 03h 134.5 bps, 04h 150 bps, 05h 300 bps, 06h 600 bps, 07h 1200 bps, 08h 1800 bps, 09h 2000 bps, 0Ah 2400 bps, 0Bh 3600 bps, 0Ch 4800 bps, 0Dh 7200 bps, 0Eh 9600 bps, 0Fh 19200 bps, 10h 38400 bps, 11h 57600 bps, 12h 115200 bps 01h BYTE receive bits per character (0=5 bits..3=8 bits) 02h BYTE receive stop bits 03h BYTE receive parity 00h none, 01h odd, 02h even, 03h mark, 04h space 04h BYTE transmit baud rate index (same as receive baud rate) 05h BYTE transmit bits per character (0=5 bits..3=8 bits) 06h BYTE transmit stop bits 07h BYTE transmit parity (same as receive parity) 08h BYTE DTR state (00h off, 01h on) 09h BYTE RTS state (00h off, 01h on) 0Ah BYTE flow control (00h none, 01h XON/XOFF, 02h RTS/CTS, 03h both) 0Bh BYTE break control (00h off, 01h on) Format of Access Server statistics: Offset Size Description (Table 2138) 00h BYTE port number 01h BYTE external status signals (see #2136) 02h BYTE transmitter status (see #2134) 03h BYTE receiver status (see #2135) 04h DWORD number of characters received 08h DWORD number of characters transmitted 0Ch WORD input parity errors 0Eh WORD input framing errors 10h WORD lost characters due to hardware overrun 12h WORD lost characters due to data buffer overrun Note: the counts are not allowed to wrap around; once a count reaches FFFFh or FFFFFFFFh, it is no longer incremented Format of Access Server XON/XOFF characters: Offset Size Description (Table 2139) 00h BYTE 04h (number of bytes following) 01h BYTE transmit XON character 02h BYTE transmit XOFF character 03h BYTE receive XON character 04h BYTE receive XOFF character --------N-2F7AFE----------------------------- INT 2F - Novell NetWare - DOSNP.EXE - INSTALLATION CHECK AX = 7AFEh Return: AL = FFh if present ES = (data???) segment of DOSNP Program: DOSNP.EXE provides "named pipes" support for DOS workstations running NetWare Note: the NetWare shell calls this function and refuses to load if DOSNP is present SeeAlso: AX=7A90h --------N-2F7AFFBX0000----------------------- INT 2F - Novell NetWare - TBMI v1.1+ - INSTALLATION CHECK / Windows SUPPORT AX = 7AFFh BX = 0000h CX = 4E65h ("Ne") DX = 7457h ("tW") ES:DI -> Windows support procedure (see #2140) Return: AL = FFh if installed CX = configured sockets (14h) DS:SI -> data table ??? ES:DI -> IPX far call handler Notes: for IPX/SPX this call reportedly returns DS:SI pointing to the table of pointers to service events queue head and tail this function is also supported by IPXODI; v2.12 does not change DS, but does set SI to an internal address SeeAlso: AX=7AFFh/BX=0001h (Table 2140) Values Windows support procedure called with: BP = function 0001h Get ECB BX = socket number Return: ES:SI -> ECB or 0000h:0000h if none available 0002h Count Listen ECBs AX = BX = socket Return: CX = number of listen ECBs for socket (must be >= 2 for SPX to work) 0003h ??? 0004h Inform task switcher of ECB locations Note: registers other than those listed above are equal to the values when IPX was called Note: the support function will not be called if IPX is called with BX bit 15 set --------N-2F7AFFBX0001----------------------- INT 2F - Novell NetWare - TBMI v1.1+, shell v3.01d - INSTALLATION CHECK??? AX = 7AFFh BX = 0001h CX = 4E65h ("Ne") DX = 7457h ("tW") Return: AL = FFh if installed CX = ??? (8000h) SI = ??? (or -> ???) (0002h and 0007h seen) ES:DI -> IPX far call handler ES:DX -> 6-byte data area ??? Note: this function is also supported by IPXODI, but IPXODI v2.12 does not return ES:DX SeeAlso: AX=7AFFh/BX=0000h --------d-2F7F00----------------------------- INT 2F - Jim Harper's CD-ROM redirector SCSI driver - INSTALLATION CHECK AX = 7F00h Return: AL = FFh if installed SeeAlso: AX=7F01h,AX=7F02h,AX=7F03h --------d-2F7F01----------------------------- INT 2F - Jim Harper's CD-ROM redirector SCSI driver - DO COMMAND AX = 7F01h DS:DX -> command record (see #2141) Return: AL = status 00h successful else error code SeeAlso: AX=7F00h,AX=7F02h,INT 11/AH=FFh"SDLP",INT 21/AX=4402h"ASPI" SeeAlso: INT 4F/AX=8100h Format of CD-ROM redirector command record: Offset Size Description (Table 2141) 00h BYTE ID 01h 10 BYTEs CDB (Command Descriptor Block) for operation 0Bh WORD segment of buffer 0Dh WORD offset of buffer 0Fh BYTE status 10h BYTE sense 12h WORD count --------d-2F7F02----------------------------- INT 2F - Jim Harper's CD-ROM redirector SCSI driver - DO RESET AX = 7F02h SeeAlso: AX=7F00h,AX=7F01h --------d-2F7F03----------------------------- INT 2F - Jim Harper's CD-ROM redirector SCSI driver - UNINSTALL AX = 7F03h Return: AL = status 00h successful 01h unable to uninstall SeeAlso: AX=7F00h ----------2F7F24----------------------------- INT 2F - Multiplex - ??? AX = 7F24h ??? Return: ??? Note: called by PC/370, an IBM 370 emulator by Donald S. Higgins ----------2F7F26----------------------------- INT 2F - Multiplex - ??? AX = 7F26h ??? Return: ??? Note: called by PC/370, an IBM 370 emulator by Donald S. Higgins --------N-2F8000----------------------------- INT 2F - EASY-NET - INSTALLATION CHECK AX = 8000h Return: AL = 00h not installed FFh installed Program: EASY-NET is a shareware two-machine serial-port network --------N-2F8000----------------------------- INT 2F - Nanosoft, Inc. TurboNET server - INSTALLATION CHECK AX = 8000h Return: AL = FFh if installed BX = CS of resident code CX = ??? (03FCh) Program: TurboNET is a NetBIOS-based file redirector and server; a demonstration version may be downloaded from Nanosoft's BBS SeeAlso: AX=8100h --------t-2F8000----------------------------- INT 2F - CS_TSR specification - TSR INSTALLATION CHECK AX = 8000h DS:SI -> 4-byte CS_TSR signature (11h 43h 53h 10h) Return: AL = status 00h no CS_TSR-compliant TSRs installed 01h installed, but signature did not match FFh installed, signature matches ES:DI -> resident process block (see #2142) of last installed TSR (if DS:SI pointed at signature on entry) Program: the CS_TSR specification is a standardized TSR interface by Compact Soft group in Kiev, Ukraine Desc: determine whether any CS_TSR-compliant TSRs are installed on the selected multiplex number Range: AH=80h to AH=FFh SeeAlso: AX=8001h"CS_TSR",AX=8002h"CS_TSR",AX=8003h"CS_TSR" Format of CS_TSR process block: Offset Size Description (Table 2142) 00h 4 BYTEs CS_TSR signature 11h 43h 53h 10h 04h BYTE INT 2F multiplex number 05h WORD virtual process handle (unique among loaded TSRs) 07h 2 BYTEs version (binary minor version, then major version) 09h WORD PSP segment of TSR 0Bh DWORD pointer to ASCIZ program name 0Fh 3 BYTEs program creation date (day, month, year) 12h 3 BYTEs process start time (seconds, minutes, hours) 15h 3 BYTEs process start date (day, month, year) --------F-2F8000DX0000----------------------- INT 2F - FaxBIOS interface - INSTALLATION CHECK AX = 8000h DX = 0000h DI = 0000h Return: AL = FFh if installed DX:DI -> signature "FaxBiosjpc" Range: AH=80h to AH=FFh, selected by scanning multiplex numbers for signature SeeAlso: AH=2Ah,AX=80FBh --------N-2F8001----------------------------- INT 2F - Nanosoft, Inc. TurboNET server - ??? AX = 8001h DS:SI -> 16-byte buffer for ??? Return: AH = status 00h successful 01h error (TurboNET busy) Note: makes NetBIOS calls --------t-2F8001----------------------------- INT 2F - CS_TSR specification - GET HANDLE (TSR-SPECIFIC INSTALLATION CHECK) AX = 8001h DS:SI -> ASCIZ signature string for desired TSR (see #2143) Return: BX = process handle or 0000h if specified TSR not installed ES:DI -> process block for TSR (see #2142) if BX<>0000h Note: A widely-available copy of ASCII billing itself as "ASCII 2.OO by Nick Zaikin Jr." is in fact a hacked copy of the Compact Soft ASCII v4.23 which is identical except for the changed attribution and version (in fact, some instances of "4.23" were missed); the hacked copy requires the signature string "ASCII 2.OO by Nick Zaikin Jr." instead of the unhacked version's simple signature "ASCII" SeeAlso: AX=8000h"CS_TSR",AX=8002h"CS_TSR" (Table 2143) Values for CS_TSR signature strings: "ASCII" ASCII, a popup ASCII table with character input "Halculator" HALC, a 32-bit RPN WYSIWIH calculator with undo and ptr support "AntiTurbo" AT!, an intelligent system slow-down utility --------t-2F8002----------------------------- INT 2F - CS_TSR specification - GET PROCESS BLOCK BY PROCESS HANDLE AX = 8002h BX = process handle for TSR (see AX=8001h"CS_TSR") Return: ES:DI -> process block for specified TSR (see #2142) unchanged if no match for process handle Note: This function is used to allocate a process handle when the TSR installs itself, by setting ES:DI to point at something other than a CS_TSR process block's signature string and iterating through the possible process handles (0001h to FFFFh) until ES:DI is returned unchanged SeeAlso: AX=8000h"CS_TSR",AX=8001h"CS_TSR",AX=8003h"CS_TSR" --------t-2F8003----------------------------- INT 2F - CS_TSR specification - CUSTOM SUBFUNCTION AX = 8003h BX = process handle for TSR (see AX=8001h"CS_TSR") other registers vary by TSR Return: vary by TSR, unchanged if not supported Program: the CS_TSR specification is a standardized TSR interface by Compact Soft group in Kiev, Ukraine SeeAlso: AX=8000h"CS_TSR",AX=8001h"CS_TSR",AX=8002h"CS_TSR" --------F-2F80FB----------------------------- INT 2F - FaxBIOS interface - COMMAND SUBMISSION AX = 80FBh BX = function number (see #2144) DX:DI -> command buffer (see #2146,#2149,#2150,#2151,#2152,#2153,#2158,#2164,#2171) Return: AL = FFh if submitted OK CX = result code (see #2145) Range: AH=80h to AH=FFh, selected by scanning multiplex numbers for signature SeeAlso: AX=8000h"FaxBIOS",AX=CBDDh (Table 2144) Values for FaxBIOS function number: 0001h SYS_LOGIN 0002h SYS_LOGOUT 0003h SYS_GET_FAXAPP_INFO 0004h STAT_IO_GET 0005h STAT_FAXBIOS_GET 0006h PDIR_OPEN 0007h PDIR_CLOSE (see #2154) 0008h PDIR_READ_PERSON (see #2155) 0009h PDIR_PARTIAL_READ 000Ah PDIR_READ_GROUP 000Bh PDIR_READ_MEMBER_LIST 000Ch PDIR_WRITE_PERSON 000Dh PDIR_WRITE_GROUP 000Eh PDIR_DELETE_PERSON 000Fh PDIR_DELETE_GROUP 0010h PDIR_READ_GROUP_LIST 0011h PDIR_IN_GROUP 0012h PDIR_OUT_GROUP 0013h SCHED_OPEN (see #2156) 0014h SCHED_ADD_DEST (see #2157) 0015h SCHED_ADD_FILE (see #2158) 0016h SCHED_SET_PARAMS (see #2159) 0017h SCHED_CANCEL (see #2156) 0018h SCHED_CLOSE (see #2160) 0019h SLOG_OPEN (see #2161) 001Ah SLOG_CLOSE (see #2161) 001Bh SLOG_SHORT_ENV_STAT 001Ch SLOG_LONG_ENV_STAT 001Dh SLOG_DEST_STAT 001Eh SLOG_FILE_STAT 001Fh SLOG_CANCEL_ENV 0020h RLOG_OPEN (see #2161) 0021h RLOG_CLOSE (see #2161) 0022h RLOG_READ 0023h GRAPH_GET_FILE_TYPE (see #2162) 0024h GRAPH_EXPORT_FILE 0025h GRAPH_GET_LAYOUT_INFO 0026h GRAPH_CREATE_FILE (see #2163) 0027h GRAPH_CLOSE_FILE (see #2164) 0028h GRAPH_CREATE_PAGE (see #2165) 0029h GRAPH_WRITE (see #2166) 002Ah GRAPH_END_PAGE 002Bh GRAPH_OPEN_FILE (see #2167) 002Ch GRAPH_GOTO_PAGE (see #2168) 002Dh GRAPH_READ (see #2169) 002Eh IOCTL_GET 002Fh IOCTL_SET 0030h IOCTL_ANSWER_FAX (see #2170) 0031h IOCTL_DIAL (see #2171) (Table 2145) Values for FaxBIOS result code: 0000h successful 0001h not prepared or servicing another client (busy) 0002h call failed due to sharing (LOCKED) 0003h logged-in client limit reached (FULL) 0004h transport denied (TRANSPORT_DENIED) 0005h not implemented (NOT_IMPLEMENTED) 0006h aborted while in progress (ABORTED) 0007h permissions denied (PERMISSION_DENIED) 0008h requested data is no longer valid (NO_LONGER_VALID) 0080h unspecified system error occurred 0081h an internal file was not found 0082h an internal file could not be created 0083h an internal file could not be opened 0084h an internal file could not be closed 0085h error occurred writing to an internal file 0086h error occurred reading from an internal file 0087h bad or corrupted file encountered 0088h an access violation occurred 0089h an internal file is empty 008Ah insufficient memory to process request 008Bh FaxBIOS was unable to issue a handle 008Ch an error internal to FaxBIOS occurred 008Dh no room on disk 0100h unspecified error accessing client file 0101h file not found 0102h creation fault 0103h open fault 0104h close fault 0105h write fault 0106h read fault 0107h file corrupted 0108h access violation 0109h empty file 0200h unspecified argument error 0201h bad function 0202h bad option 0203h bad structure size 0204h bad buffer size 0205h bad client ID 0300h unspecified error with token 0301h cover sheet token was invalid 0302h logo token was invalid 0303h signature token was invalid 0304h font token was invalid 0305h phone directory token was invalid 0306h outbound route token was invalid 0307h priority token was invalid 0308h sort token was invalid 0309h billing token was invalid 0400h unspecified handle error 0401h bad Phone Directory handle 0402h bad scheduling handle 0403h bad read send log handle 0404h bad read receive log handle 0405h bad graphics handle 0500h data passed in structure was invalid 0501h name field given is invalid 0502h phone number given is invalid 0503h poll code submitted is invalid 0504h file type constant was invalid 0505h BFT constant not defined or supported 0506h resolution not defined or supported 0507h page length not defined or supported 0508h page width not defined or supported 0509h date & time requested are ridiculous 050Ah Subject text was not an ASCIZ string 050Bh From text was not an ASCIZ string 050Ch requested envelope ID was not found 050Dh requested envelope ID is not valid 050Eh envelope requested was not found 050Fh destination index is out of range 0510h file index is out of range 0511h index into receive log is out of range 0512h file name specified was incomplete or invalid 0513h page selected was out of range 0514h bit width more than byte width 0515h mode for open is not defined 0516h person index is out of range 0517h person ID is out of range 0518h group index out of range or invalid 0519h group ID out of range or invalid 051Ah range of indices to read is invalid 051Bh group name given is invalid 051Ch field_to_use is badly specified 051Dh predicate invalid for field specified 0600h unspecified client procedure error 0601h device of interest is not present 0602h device of interest has been removed 0603h device of interest is not responding 0604h device of interest is disabled 0605h could not dial because device was in use 0606h maximum destination limit exceeded 0607h maximum file limit exceeded 0608h scheduling closed with no destination 0609h scheduling closed with no files or poll 060Ah scheduling closed with no parameters specified 060Bh file type specified does not match file 060Ch file type specified is not supported 060Dh file submitted is not exportable 060Eh file type specified is not imageable 060Fh error converting file 0610h envelope could not be cancelled 0611h Phone Directory is full 0612h record is already in the Phone Directory 0613h selected group in Phone Directory is full 0614h person is already in the group 0615h person is not in the group & cannot be removed 0616h a graphics file to be created already exists 0617h a graphics file to be read is empty 0618h GRAPH_CREATE_PAGE called before GRAPH_END_PAGE 0619h graph read or write attempted without goto or create 061Ah graph page contains no data 061Bh Phone Directory is already open for this client 061Ch schedule log is already open for this client 061Dh receive log is aready open for this client 061Eh Phone Directory function requires write mode 0800h denied exclusive use of the API Format of FaxBIOS SYS_LOGIN command buffer: Offset Size Description (Table 2146) 00h WORD structure size 02h WORD function number 04h WORD return code 06h WORD client ID 08h WORD API Major Version 0Ah WORD API Minor Version 0Ch DWORD reserved for manufacturer's use 10h 22 BYTEs manufacturer's ID 26h WORD highest possible device number 28h WORD maximum destinations per envelope 2Ah WORD maximum files per envelope 2Ch WORD FaxBIOS capabilities (see #2147) 2Eh DWORD T.30 capabilities (see #2148) 32h WORD IPC handle 34h DWORD amount of memory needed to load 38h WORD scope (00h for public, nonzero for private) 3Ah 6 BYTEs future expansion 40h WORD structure size Bitfields for FaxBIOS capabilities: Bit(s) Description (Table 2147) 0 transmit supported 1 receive supported 2 IOCTL supported 3 IOCTL_DIAL supported 4 IOCTL_ANSWER_FAX supported 5 manual transmit supported 6 optional phone services supported 7 canonical phone objects 8 seam with next supported Bitfields for T.30 capabilities: Bit(s) Description (Table 2148) 0 low vertical resolution (minimum) 1 high vertical resolution 2 page width 107mm (4.21 in) 3 page width 151mm (5.91 in) 4 page width 215mm (8.46 in) (minimum) 5 page width 255mm (10.04 in) 6 page width 303mm (11.93 in) 7 unused 8 page length 297mm (11.69 in) (minimum) 9 page length 364mm (14.33 in) 10 page length 279mm (11 in) 11 page length unlimited 12 Group 4 resolution 300x300 13 Group 4 resolution 400x400 14 able to respond to poll from remote 15 able to poll remote 16 binary file transfer supported Format of FaxBIOS SYS_LOGOUT command buffer: Offset Size Description (Table 2149) 00h WORD structure size 02h WORD function number 04h WORD return code 06h WORD client ID 08h DWORD client tag (for client's internal use) 0Ch 6 BYTEs future expansion 12h WORD structure size Format of FaxBIOS SYS_GET_FAXAPP_INFO command buffer: Offset Size Description (Table 2150) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch 80 BYTEs FaxBIOS data 5Ch 80 BYTEs default cover ACh 80 BYTEs default logo FCh 80 BYTEs default signature 14Ch 80 BYTEs default font 10 19Ch 80 BYTEs default font 165 1ECh 80 BYTEs default user font 23Ch 80 BYTEs default Pdir 28Ch 80 BYTEs default sort 2DCh 10 BYTEs default bill 2E6h 10 BYTEs default route 2F0h 40 BYTEs default cover sheet form 318h 34 BYTEs valid dial characters 33Ah 6 BYTEs local country code 340h 6 BYTEs local city or area code 346h 6 BYTEs future expansion 34Ch WORD structure size Format of FaxBIOS STAT_IO_GET command buffer: Offset Size Description (Table 2151) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD device number 0Eh WORD current activity 10h WORD number of rings (if ringing) 12h WORD number of fascimiles transmitted 14h WORD number of fascimiles received 16h WORD status of last transmission 18h WORD envelope number of last transmission 1Ah WORD index of last destination in envelope 1Ch WORD status of last reception 1Eh WORD current page (if session in progress) 20h 80 BYTEs current file 70h 104 BYTEs remote number D8h 20 BYTEs last name ECh 20 BYTEs first name 100h 32 BYTEs company name 120h 32 BYTEs notes 140h WORD current envelope ID (if sending) 142h WORD total pages in transmission (if sending) 144h 6 BYTEs future expansion 14h WORD structure size Format of FaxBIOS STAT_FAXBIOS_GET command buffer: Offset Size Description (Table 2152) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD status ID 0Eh WORD currenty FaxBIOS function number 10h WORD current Client ID being serviced 12h WORD number of things to do 14h WORD number of them done 16h WORD number of pages to do (if any) 18h WORD number of them done 1Ah WORD number of files to do 1Ch WORD number of them done 1Eh 80 BYTEs current File 6Eh WORD 0 if all devices are idle 70h WORD number of fascimiles transmitted 72h WORD number of fascimiles received 74h WORD status of last transmission in system 76h WORD envelope ID of last transmission 78h WORD index of last destination in envelope 7Ah WORD status of last reception in system 7Ch DWORD time of next transmission 80h 6 BYTEs future expansion 86h WORD structure size Format of FaxBIOS PDIR_OPEN command buffer: Offset Size Description (Table 2153) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch 80 BYTEs Phone Directory token 5Ch 80 BYTEs sort order token ACh WORD open Mode (0 = read, 1 = write) AEh WORD Phone Directory handle B0h WORD number of people B2h WORD number of groups B4h WORD bitmap of fields supported by partial read B6h 6 BYTEs future expansion BCh WORD structure size Format of FaxBIOS PDIR_CLOSE command buffer: Offset Size Description (Table 2154) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD Phone Directory handle 0Eh 6 BYTEs future expansion 14h WORD structure size Format of FaxBIOS PDIR_READ_PERSON command buffer: Offset Size Description (Table 2155) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD Phone Directory handle 0Eh WORD retrieve by index 10h WORD person ID or index 12h WORD how many groups person is in 14h WORD person ID 16h 20 BYTEs last name 2Ah 20 BYTEs first name 3Eh 32 BYTEs company 5Eh 32 BYTEs notes 7Eh 6 BYTEs FAX country code 84h 6 BYTEs FAX city/area code 8Ah 14 BYTEs FAX local number 98h 14 BYTEs FAX extension A6h 24 BYTEs reserved BEh 6 BYTEs voice country code C4h 6 BYTEs voice city/area code CAh 14 BYTEs voice local number D8h 14 BYTEs voice extension E6h 24 BYTEs reserved FEh 10 BYTEs outbound routing information 108h 10 BYTEs billing information, credit card etc 112h DWORD remote FAX capabilities 116h 21 BYTEs T.30 poll code of FAX number 12Bh 15 BYTEs reserved 13Ah 6 BYTEs future expansion 140h WORD structure size Format of FaxBIOS SCHED_OPEN, SCHED_CANCEL command buffer: Offset Size Description (Table 2156) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD scheduler handle 0Eh 6 BYTEs future expansion 14h WORD structure size Format of FaxBIOS SCHED_ADD_DEST command buffer: Offset Size Description (Table 2157) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD schedule handle 0Eh WORD device number if manual send wanted 10h WORD non-zero if poll desired 12h WORD person ID 14h 20 BYTEs last name 28h 20 BYTEs first name 3Ch 32 BYTEs company 5Ch 32 BYTEs notes 7Ch 6 BYTEs FAX country code 82h 6 BYTEs FAX city/area code 88h 14 BYTEs FAX local number 96h 14 BYTEs FAX extension A4h 24 BYTEs reserved BCh 6 BYTEs voice country code C2h 6 BYTEs voice city/area code C8h 14 BYTEs voice local number D6h 14 BYTEs voice extension E4h 24 BYTEs reserved FCh 10 BYTEs outbound routing information 106h 10 BYTEs billing information, credit card etc 110h DWORD remote FAX capabilities 114h 21 BYTEs T.30 poll code of FAX number 129h 15 BYTEs reserved 138h 6 BYTEs future expansion 13Eh WORD structure size SeeAlso: #2158 Format of FaxBIOS SCHED_ADD_FILE command buffer: Offset Size Description (Table 2158) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD schedule handle 0Eh WORD file type 0000h unidentified 0001h native file format 0002h ASCII 0003h FaxBIOS Tiff Class F 10h 80 BYTEs file name 60h 80 BYTEs font token B0h WORD conversion options bitmap B2h WORD resolution 0000h standard 98 lines per inch, 204 dpi 0001h fine 196 lines per inch, 204 dpi 0002h Group4 300 dpi 0003h Group4 400 dpi B4h WORD page length 0000h 279 mm (11 in) 0001h 297 mm (11.69 in) 0002h 364 mm (14.33 in) 0003h unlimited B6h WORD page width 0000h 215 mm (8.46 in) 0001h 255 mm (10.04 in) 0002h 303 mm (11.93 in) 0003h 151 mm (5.91 in) 0004h 107 mm (4.21 in) B8h WORD binary file transfer specification 0000h only as FAX 0001h only as file (for non-faxable files) 0002h as file when possible else FAX BAh WORD seam flag (nonzero for seam with next) BCh WORD delete flag (nonzero to delete when done) BEh 6 BYTEs future expansion C4h WORD structure size SeeAlso: #2157,#2159 Format of FaxBIOS SCHED_SET_PARAMS command buffer: Offset Size Description (Table 2159) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD scheduler handle 0Eh DWORD time to send 10h 10 BYTEs priority token 1Ch 80 BYTEs logo file token 6Ch 80 BYTEs signature file token BCh 80 BYTEs cover page token 10Ch 40 BYTEs Subject text 134h 40 BYTEs From text 15Ch WORD user ID 15Eh 6 BYTEs future expansion 164h WORD structure size SeeAlso: #2157,#2158,#2160 Format of FaxBIOS SCHED_CLOSE command buffer: Offset Size Description (Table 2160) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD scheduler handle 0Eh WORD envelope ID generated 10h 6 BYTEs future expansion 16h WORD structure size SeeAlso: #2159 Format of FaxBIOS SLOG_OPEN, SLOG_CLOSE, RLOG_OPEN, RLOG_CLOSE command buffer: Offset Size Description (Table 2161) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD log handle 0Eh WORD number of entries 10h 6 BYTEs future expansion 16h WORD structure size Format of FaxBIOS GRAPH_GET_FILE_TYPE command buffer: Offset Size Description (Table 2162) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch 80 BYTEs filename 5Ch WORD file type 0000h unidentified 0001h native file format 0002h ASCII 0003h FaxBIOS Tiff Class F 5Eh WORD bitmap of supported capabilities 60h 6 BYTEs future expansion 66h WORD structure size SeeAlso: #2163,#2164 Format of FaxBIOS GRAPH_CREATE_FILE command buffer: Offset Size Description (Table 2163) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch 80 BYTEs filename 5Ch WORD graph handle 5Eh 6 BYTEs future expansion 64h WORD structure size SeeAlso: #2162,#2164,#2165 Format of FaxBIOS GRAPH_CLOSE_FILE, GRAPH_END_PAGE command buffer: Offset Size Description (Table 2164) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD graph handle 0Eh 6 BYTEs future expansion 14h WORD structure size SeeAlso: #2163,#2165 Format of FaxBIOS GRAPH_CREATE_PAGE command buffer: Offset Size Description (Table 2165) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD graph handle 0Eh WORD resolution 10h WORD page width 12h 6 BYTEs future expansion 18h WORD structure size SeeAlso: #2163,#2164,#2166 Format of FaxBIOS GRAPH_WRITE_PAGE command buffer: Offset Size Description (Table 2166) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD graph handle 0Eh DWORD pointer to storage for image 12h WORD band height in lines 14h WORD width of page image in bytes 16h WORD facsimile page width constant 18h WORD width of page image in bits 1Ah WORD number of bytes actually processed 1Ch 6 BYTEs future expansion 22h WORD structure size SeeAlso: #2165,#2167 Format of FaxBIOS GRAPH_OPEN_FILE command buffer: Offset Size Description (Table 2167) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch 80 BYTEs filename 5Ch WORD file type 5Eh WORD graph handle 60h WORD number of pages 62h 6 BYTEs future expansion 68h WORD structure size SeeAlso: #2166,#2168 Format of FaxBIOS GRAPH_GOTO_PAGE command buffer: Offset Size Description (Table 2168) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD graph handle 0Eh WORD page number 10h WORD vertical resolution 12h WORD page width 14h DWORD page length 18h 6 BYTEs future expansion 1Eh WORD structure size SeeAlso: #2166,#2167,#2169 Format of FaxBIOS GRAPH_READ_PAGE command buffer: Offset Size Description (Table 2169) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD graph handle 0Eh DWORD pointer to storage for image 12h WORD band height in lines 14h WORD width of page image in bytes 16h WORD facsimile page width constant 18h WORD width of page image in bits 1Ah WORD number of bytes actually processed 1Ch 6 BYTEs future expansion 22h WORD structure size Format of FaxBIOS IOCTL_ANSWER_FAX command buffer: Offset Size Description (Table 2170) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD device number 0Eh 6 BYTEs future expansion 14h WORD structure size SeeAlso: #2171 Format of FaxBIOS IOCTL_DIAL command buffer: Offset Size Description (Table 2171) 00h 12 BYTEs common data (see SYS_LOGOUT above) 0Ch WORD device number 0Eh 6 BYTEs country code 14h 6 BYTEs city or area code 1Ah 14 BYTEs local number 28h 14 BYTEs extension 36h 14 BYTEs reserved 4Eh 6 BYTEs future expansion 54h WORD structure size SeeAlso: #2170 --------N-2F8100----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - INSTALLATION CHECK AX = 8100h Return: AL = FFh if installed Program: TurboNET is a NetBIOS-based file redirector and server; a demonstration version may be downloaded from Nanosoft's BBS SeeAlso: AX=8000h"TurboNET" --------N-2F8101----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - ??? AX = 8101h Return: AL = ??? DL = ??? --------N-2F8102----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - ??? AX = 8102h Return: AL = ??? DL = ??? --------N-2F8103----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - GET MACHINE NAME??? AX = 8103h ES:DI -> 17-byte buffer Return: buffer filled --------N-2F8104----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - ??? AX = 8104h BL = ??? BH = ??? CX = ??? DX = ??? DS:SI -> 16-byte buffer containing ??? Return: AL = 00h ??? --------N-2F8105----------------------------- INT 2F U - Nanosoft, Inc. TurboNET redirector - ??? AX = 8105h CX = ??? (don't change current value if 0000h) DX = ??? (don't change current value if 0000h) Return: AL = 00h successful --------s-2F8200----------------------------- INT 2F - RESPLAY - SAMPLE/PLAYBACK AX = 8200h DX:DI -> start of sample space CX:BX = length in bytes Return: AX = status (see #2172) Program: RESPLAY is a freeware sound sampling/playback utility by Mark J. Cox SeeAlso: AX=8201h"RESPLAY",AX=8210h (Table 2172) Values for RESPLAY status: 1000h successful 2000h not initialized (see AX=8210h) other RESPLAY not installed --------G-2F8200----------------------------- INT 2F U - Nanosoft, Inc. CAPDOS - INSTALLATION CHECK AX = 8200h Return: AL = FFh if installed Program: CAPDOS is a TSR by Nanosoft, Inc. which allows INT 21h calls to be captured and recorded for later analysis SeeAlso: AX=8100h,AX=8201h"CAPDOS",AX=8202h"CAPDOS",AX=8203h"CAPDOS" SeeAlso: AX=8204h"CAPDOS" --------s-2F8201----------------------------- INT 2F - RESPLAY - INSTALLATION CHECK AX = 8201h Return: AX = 7746h if installed SeeAlso: AX=8202h"RESPLAY",AX=8210h --------G-2F8201----------------------------- INT 2F - Nanosoft, Inc. CAPDOS - CLEAR QUEUE AX = 8201h Note: resets queue of captured INT 21 calls SeeAlso: AX=8200h"CAPDOS" --------s-2F8202----------------------------- INT 2F - RESPLAY - UNINSTALL AX = 8202h Return: AX = status 1000h successful SeeAlso: AX=8201h"RESPLAY",AX=8210h"RESPLAY" --------G-2F8202----------------------------- INT 2F - Nanosoft, Inc. CAPDOS - START COLLECTION AX = 8202h SeeAlso: AX=8200h"CAPDOS",AX=8203h"CAPDOS" --------G-2F8203----------------------------- INT 2F - Nanosoft, Inc. CAPDOS - STOP COLLECTION AX = 8203h SeeAlso: AX=8200h"CAPDOS",AX=8202h"CAPDOS",AX=8204h"CAPDOS" --------G-2F8204----------------------------- INT 2F - Nanosoft, Inc. CAPDOS - GET QUEUE PARAMETERS AX = 8204h Return: AH = flag: queue wrapped if nonzero BX = index of current start of queue CX = size of queue in entries SeeAlso: AX=8200h"CAPDOS",AX=8202h"CAPDOS",AX=8205h"CAPDOS" --------G-2F8205----------------------------- INT 2F - Nanosoft, Inc. CAPDOS - GET QUEUE ITEM AX = 8205h BX = queue item number Return: AX,BX,CX,DX,SI,DI,DS,ES as on entry to captured DOS call SeeAlso: AX=8200h"CAPDOS",AX=8204h"CAPDOS" --------s-2F8210----------------------------- INT 2F - RESPLAY - INITIALIZE AX = 8210h BL = sound device number (see #2173) BH = sample rate in multiples of 250 Hz (14h to A0h) CL = direction 00h playback 01h sample Return: AX = status (see #2172) SeeAlso: AX=8200h"RESPLAY" (Table 2173) Values for RESPLAY sound device: 00h printer port LPT1 01h printer port LPT2 02h prototype board at I/O address 0300h 03h printer port (alternative LPT1) 04h internal speaker ----------2F86------------------------------- INT 2F U - ??? AH = 86h AL = function (at least 06h and 07h) ??? Return: ??? Note: called by Codeview for Windows SeeAlso: AH=44h --------U-2F8900----------------------------- INT 2F - WHOA!.COM - INSTALLATION CHECK AX = 8900h Return: AL = state 00h not installed FFh installed Program: WHOA!.COM is a system slow-down utility by Brad D Crandall SeeAlso: AX=8901h,AX=8902h --------U-2F8901----------------------------- INT 2F - WHOA!.COM - UNINSTALL AX = 8901h Return: AL = status FDh successful FEh error SeeAlso: AX=8900h --------U-2F8902----------------------------- INT 2F - WHOA!.COM - SET DELAY COUNT AX = 8902h BX = delay count (larger values slow system down more) Return: AL = status FDh successful FEh error Program: WHOA!.COM is a system slow-down utility by Brad D Crandall SeeAlso: AX=8900h --------U-2F9000----------------------------- INT 2F U - RAID - INSTALLATION CHECK AX = 9000h Return: AL = FFh if installed Program: RAID (Resident AID) is a TSR utility program by Ross Neilson Wentworth that resides mostly in EMS --------U-2F9001----------------------------- INT 2F U - RAID - GET ??? AX = 9001h Return: DX:AX -> ??? SeeAlso: AX=9000h --------U-2F9002----------------------------- INT 2F U - RAID - GET RESIDENT SEGMENT AX = 9002h Return: AX = segment of resident (conventional memory) portion SeeAlso: AX=9000h --------U-2F9003----------------------------- INT 2F U - RAID - UNINSTALL AX = 9003h Return: ??? SeeAlso: AX=9000h --------U-2F9004----------------------------- INT 2F U - RAID - GET ??? AX = 9004h Return: AX = first available paragraph past end of resident portion??? CX destroyed SeeAlso: AX=9000h --------e-2F92------------------------------- INT 2F - Network Courier E-Mail - API AH = 92h AL = function 00h installation check 01h uninstall 02h pop down MICRO.EXE notification window 03h ??? 04h ??? 05h ??? Return: ??? Program: The Network Courier is an electronic mail package by Consumers Software of Vancouver, BC which was bought by Microsoft in 1991 and renamed Microsoft Mail v3.0. SeeAlso: AX=9400h,AX=9401h,AX=9402h,AH=9Ch Index: installation check;Network Courier E-Mail Index: uninstall;Network Courier E-Mail --------R-2F9200----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - BUG AX = 9200h Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives BUG: jumps to data because jump table entry is 0000h Note: DRIVEMAP returns AX=FFFFh if not a valid function number in AL --------R-2F9201----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - CHECK IF MAPPED DRIVE AX = 9201h DL = drive number (01h = A:, etc.) Return: AL = 92h if mapped drive AH may be destroyed (v8.0 DRIVEMAP returns AX=0000h if not mapped) SeeAlso: AX=9204h,AX=920Bh --------R-2F9202----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - UNINSTALL AX = 9202h BX = caller's CS Return: AX = status 0000h failed nonzero successful SeeAlso: AX=9204h --------R-2F9203----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET VERSION AX = 9203h Return: AH = major version AL = minor version CX = segment of resident code Note: the DRIVEMAP included with PC Tools v8.0 is version 1.00 SeeAlso: AX=9204h,INT 16/AX=FF70h --------R-2F9204----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - INSTALLATION CHECK AX = 9204h Return: AX = 9200h if installed BL = ??? CX = segment of resident code Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives SeeAlso: AX=9201h,AX=9202h,AX=9203h --------R-2F9205----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - SET ??? AX = 9205h BX = ??? to set Return: CX = new value of ??? --------R-2F9206----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9206h ??? Return: ??? --------R-2F9207----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 9207h ??? Return: AX = ??? --------R-2F9208----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9208h ??? Return: ??? --------R-2F9209----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9209h ??? Return: AX = ??? BX = ??? CX = ??? DX = ??? --------R-2F920A----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 920Ah BX = ??? Return: AX = ??? or FFFBh on error --------R-2F920B----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - SET DRIVE MAPPING AX = 920Bh BL = drive letter (41h ['A'] = A:, etc) CX = ??? (0000h removes mapping) Return: AX = ??? or FFF8h on error SeeAlso: AX=9201h,AX=920Dh --------R-2F920C----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 920Ch ??? Return: AX = ??? (0002h) CX = ??? (0000h) --------R-2F920D----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET DRIVE TYPE AX = 920Dh BL = drive letter (41h ['A'] = A:, etc) Return: AX = type flags bit 0: ??? bit 1: available bit 5: local BX = ??? CX = segment of resident code (apparently an unintended side effect) Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives SeeAlso: AX=9218h,INT 16/AX=FF70h --------R-2F920E----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - SET LPT MAPPING AX = 920Eh BX = port number (0-2) CX = ??? (0000h to unmap) Return: ??? --------R-2F920F----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 920Fh ES:DI -> 3-byte buffer for ??? Return: CX = 0000h ES:DI buffer filled --------R-2F9210----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9210h ??? Return: ??? --------R-2F9211----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 9211h ES:DI -> 8-word buffer for ??? Return: CX = 0000h ES:DI buffer filled --------R-2F9212----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - CRITICAL SECTION??? AX = 9212h BX = phase 0000h leave critical section??? nonzero enter critical section??? --------R-2F9213----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9213h BX = function number (0000h-000Bh) ??? Return: ??? --------R-2F9214----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 9214h ES:DI -> 6-word buffer for ??? Return: CX = 0000h AX = ??? ES:DI buffer filled --------R-2F9215----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 9215h ES:DI -> 100-word buffer for ??? Return: CX = 0000h ES:DI buffer filled --------R-2F9216----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9216h ES:DI -> ??? Return: ??? --------R-2F9217----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9217h DS:SI -> 25-word buffer containing ??? Return: ??? --------R-2F9218----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET LPT TYPE??? AX = 9218h BX = port number??? Return: AX = ??? BX = ??? (0000h) CX = ??? (0000h) Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives --------R-2F9219----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 9219h ??? Return: ??? --------R-2F921A----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 921Ah ??? Return: AH = ??? AL = ??? BX = ??? --------R-2F921B----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 921Bh ??? Return: AX = ??? CX = segment of resident code (apparently an unintended side effect) --------R-2F921C----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 921Ch ??? Return: ??? --------R-2F921D----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - GET ??? AX = 921Dh Return: AX = ??? --------R-2F921E----------------------------- INT 2F U - PC Tools v8.0 DRIVEMAP - ??? AX = 921Eh ??? Return: ??? Program: DRIVEMAP is a redirector which allows drives on computers connected over the parallel or serial ports to appear as local drives Note: this function sets two variables to 24h each SeeAlso: INT 16/AX=FF70h --------V-2F93------------------------------- INT 2F - InnerMission v1.7+ - INSTALLATION CHECK AH = 93h BX = CX = AX Return: AL = state FFh if installed and BX=CX=AX on entry BX = segment of resident code 01h if installed but BX or CX differ from AX (multiplex number not available) Program: InnerMission is a shareware graphical screen blanker by Kevin Stokes SeeAlso: INT 14/AX=AA01h,INT 2F/AX=6400h Index: screen saver;InnerMission --------e-2F9400----------------------------- INT 2F - MICRO.EXE - INSTALLATION CHECK AX = 9400h Return: AL = 07h or 08h if installed Program: MICRO.EXE is a TSR of the Microsoft Mail part of Workgroup Connection SeeAlso: AH=92h"Network Courier",AX=9401h,AX=9402h,AX=9403h,AX=9404h SeeAlso: INT 21/AH=3Fh"WORKGRP.SYS" --------e-2F9401----------------------------- INT 2F - MICRO.EXE - SET ??? FLAG AX = 9401h SeeAlso: AX=9400h,AX=9403h --------e-2F9402----------------------------- INT 2F - MICRO.EXE - ??? AX = 9402h ??? Return: ??? SeeAlso: AX=9400h --------e-2F9403----------------------------- INT 2F - MICRO.EXE - SET ??? FLAG AX = 9403h SeeAlso: AX=9400h,AX=9404h --------e-2F9404----------------------------- INT 2F - MICRO.EXE - CLEAR ??? FLAG AX = 9404h ES:DI -> name of executable from which MICRO.EXE was started Note: if the specified name is identical to the name of the program file from which MICRO was started, the ??? flag is cleared; otherwise, it is left unchanged SeeAlso: AX=9400h,AX=9403h --------V-2F96C7----------------------------- INT 2F U - STRETCH - INSTALLATION CHECK AX = 96C7h Return: AX = AAAAh if installed Program: stretch.exe is a TSR for Toshiba Laptops with WD90C24 video chip to avoid blank screen areas in VGA text modes by increasing inter-line spacing --------V-2F9800----------------------------- INT 2F U - S3RMDRV.SYS - INSTALLATION CHECK / VERSION CHECK AX = 9800h BX = function 0000h installation check Return: AX = 524Dh ('RM') if installed 0001h get driver version Return: AX = driver version (AH=major, AL=BCD minor) Program: S3RMDRV.SYS provides support for the S3 MPEG driver FMPDRV SeeAlso: AX=9803h --------V-2F9803----------------------------- INT 2F U - S3RMDRV.SYS - COPY ??? INTO USER BUFFER AX = 9803h DX:BX -> 116-byte buffer for ASCIZ ??? Return: AX = 0000h Note: the examined version of the driver returns CF set for any AL other than 00h or 03h SeeAlso: AX=9800h --------l-2F9900----------------------------- INT 2F U - DOS Navigator II - INSTALLATION CHECK AX = 9900h Return: BX = 4E44h ('ND') if installed AX = number of DOS Navigator executions CL = child process exit code DX = version number (2141h for version II 1.41) Notes: old versions of DOS Navigator II always returned AH=1, while newer ones return AH=0 and store AL in the DN.FLG file Program: DOS Navigator is a multi-window shell for MS-DOS by RIT S.R.L. DOS Navigator(TM) is a registered trademark of RIT S.R.L. SeeAlso: AX=9901h,AX=9902h,AX=9903h --------l-2F9901----------------------------- INT 2F U - DOS Navigator II - RETURN POINTER TO COMMAND LINE AX = 9901h Return: ES:BX -> command line (terminated with 0Dh) AX = ES SeeAlso: AX=9900h,AX=9902h,AX=9903h --------l-2F9902----------------------------- INT 2F U - DOS Navigator II - SET 'TRUE' EXIT CODE OF DN.PRG AX = 9902h CL = exit code Return: AX destroyed SeeAlso: AX=9900h,AX=9901h,AX=9903h --------l-2F9903----------------------------- INT 2F U - DOS Navigator II - SPECIFY HOW TO EXECUTE COMMANDS AX = 9903h CL = 1 to use INT 2E CL <> 1 to use INT 21/AH=4Bh SeeAlso: AX=9900h,AX=9901h,AX=9902h --------e-2F9C------------------------------- INT 2F - Network Courier E-Mail OPERATOR.EXE - API AH = 9Ch AL = subfunction 01h uninstall Return: ??? Program: The Network Courier is an electronic mail package by Consumers Software of Vancouver, BC which was bought by Microsoft in 1991 and renamed Microsoft Mail v3.0. SeeAlso: AH=92h Index: uninstall;Network Courier E-Mail OPERATOR.EXE --------G-2F9E00----------------------------- INT 2F U - INTMON v2.1 - INSTALLATION CHECK AX = 9E00h Return: AX = FFFFh if installed BX = segment of resident code Program: INTMON is a shareware interactive interrupt monitoring TSR for 386 and higher machines by Celso Minnitti, Jr. SeeAlso: AX=9E01h,AX=9E02h,AX=9E03h,AX=9F00h --------G-2F9E01----------------------------- INT 2F U - INTMON v2.1 - RESET AX = 9E01h Return: ??? Desc: this function specifies that INTMON should assume that any interrupts on which it is currently awaiting a return have completed (i.e. interrupts which never return such as INT 20 and INT 27) SeeAlso: AX=9E00h,AX=9E03h --------G-2F9E02----------------------------- INT 2F U - INTMON v2.1 - DISPLAY CPU REGISTERS??? AX = 9E02h Return: ??? SeeAlso: AX=9E00h --------G-2F9E03----------------------------- INT 2F U - INTMON v2.1 - HOOK INTERRUPT??? AX = 9E03h BH = interrupt number??? Return: ??? Note: if AL > 03h on entry, INTMON 2.1 returns immediately SeeAlso: AX=9E00h,AX=9E01h --------G-2F9F00----------------------------- INT 2F U - INTCFG v2.1 - INSTALLATION CHECK AX = 9F00h Return: AX = FFFFh if installed Program: INTCFG is an optionally-resident control program for INTMON by Celso Minnitti, Jr. SeeAlso: AX=9E00h,AX=9F01h,AX=9F30h,AX=9F49h --------G-2F9F01----------------------------- INT 2F U - INTCFG v2.1 - ??? AX = 9F01h ??? Return: ??? SeeAlso: AX=9F00h --------G-2F9F30----------------------------- INT 2F U - INTCFG v2.1 - GET ??? AX = 9F30h Return: AX = ??? (0002h) SeeAlso: AX=9F00h --------G-2F9F49----------------------------- INT 2F U - INTCFG v2.1 - UNINSTALL AX = 9F49h Return: AX,DX,DS,ES destroyed SeeAlso: AX=9F00h --------E-2FA1--BX0081----------------------- INT 2F - Ergo DOS extenders - INSTALLATION CHECK AH = A1h BX = 0081h AL = which FEh OS/286,OS/386 FFh HummingBoard DOS extender ES:DI -> 16-byte buffer Return: if installed, first four bytes of ES:DI buffer are "IABH" Note: since TKERNEL is a licensed version, it is likely that subfunctions BX=0082h and BX=0084h are present and function identically to the AX=FBA1h/BX=008xh calls SeeAlso: AX=ED00h,AX=FBA1h/BX=0081h,INT 15/AX=BF02h --------m-2FA189----------------------------- INT 2F U - Biologic HRAMDEV.SYS - API AX = A189h BX = subfunction 0000h set ??? 0001h remove ??? 0002h get status ??? 0003h enable ??? 0004h disable ??? 0005h set ??? flag 0006h clear ??? flag 0007h set ??? flag 0008h clear ??? flag 0009h set ??? ES:DI -> function-specific arguments if func 0000h: 20-byte buffer containing ??? if func 0001h: 20-byte buffer for returned ??? if func 0002h: 16-byte buffer for returned ??? if func 0009h: WORD containing ??? Return: BX = A189h if installed AH = status 00h successful FFh failed or invalid function number Program: HRAMDEV.SYS is a part of the shareware package HRAM by Biologic which provides improved high memory access under MS-DOS 5.0 Note: functions 00h and 01h use a stack of four entries; function 01h always removes the values stored with the most recent function 00h call which has not yet been matched with a function 01h call. --------U-2FA4E0----------------------------- INT 2F - Futurus Team - INSTALLATION CHECK AX = A4E0h Return: AL = 52h ("R") if installed AH = major version plus 30h ("0") ES:BX -> ??? (INT A4 handler???) Note: older versions of Right Hand Man (from which Team evolved) store the signature "RH" at offset 103h in the INT 2F handler's segment SeeAlso: INT A4"Right Hand Man" --------U-2FA900----------------------------- INT 2F - METZTSR.COM - INSTALLATION CHECK AX = A900h CF set Return: CF clear if resident AX = 97FFh CF set if not present Notes: METZTSR.COM prevents METZ applications (such as the MAGIC screen saver) inactivity timeout while running a DOSapp under MS Windows. the default multiplex number is A9h, but may be set to any value from 80h to FFh with a commandline switch SeeAlso: AX=A901h,AX=A902h --------U-2FA901----------------------------- INT 2F - METZTSR.COM - GET TIME OF LAST KEYBOARD ACTIVITY AX = A901h CF set Return: CF clear if successful AX:DX = BIOS time at which INT 09 was last invoked CF set if not present SeeAlso: INT 09,INT 1A/AH=00h --------U-2FA902----------------------------- INT 2F - METZTSR.COM - SET METZ Ctrl-Alt-Del FLAG AX = A902h BL = new value 00h Ctrl-Alt-Del not allowed else Ctrl-Alt-Del allowed (startup default is 01h) CF set Return: CF clear if successful AX = 97FFh CF set if not resident SeeAlso: AX=A903h --------U-2FA903----------------------------- INT 2F - METZTSR.COM - GET METZ Ctrl-Alt-Del FLAG AX = A903h CF set Return: CF clear if successful AX = 97FFh if Ctrl-Alt-Del allowed AX = 0000h if Ctrl-Alt-Del not allowed CF set if not resident SeeAlso: AX=A902h --------U-2FAA------------------------------- INT 2F - Player's Tool 3.996b+ - UNINSTALL AH = AAh Return: AL = status 00h unloaded successfully 01h unable to unload: in DOS shell Program: Player's Tool is a game cheater by Dima Yakunin & Andy Robinson SeeAlso: AH=ABh"Player's Tool",AH=ACh"Player's Tool",INT 10/AH=AAh --------U-2FAA00----------------------------- INT 2F - VIDCLOCK.COM - INSTALLATION CHECK AX = AA00h Return: AL = 00h not installed FFh installed Program: VIDCLOCK.COM is a memory-resident clock by Thomas G. Hanlin III --------U-2FAB------------------------------- INT 2F - Player's Tool 3.996b+ - INSTALLATION CHECK AH = ABh Return: BH = FFh if installed BL = DOS shell state 01h in DOS shell 00h not in DOS shell SeeAlso: AH=AAh"Player's Tool",AH=ACh"Player's Tool",INT 10/AH=ABh --------f-2FAB00----------------------------- INT 2F - Btrieve Multi-User - INSTALLATION CHECK AX = AB00h Return: AL = 4Dh if installed SeeAlso: AX=AB01h,AX=AB02h,INT 7B"Btrieve" ----------2FAB00----------------------------- INT 2F - SRSoft MODAL PC v2+ - INSTALLATION CHECK / GET VERSION AX = AB00h Return: AX = 5253h ('SR' byte-swapped) if installed BX = MODAL PC version (BL = major, BH = minor) Program: MODAL PC is an algorithm/real-system simulation package by SR Soft using Petri-nets to describe simulated objects SeeAlso: AX=AB01h"MODAL",AX=AB02h"MODAL",AX=AB06h"MODAL" --------f-2FAB01----------------------------- INT 2F - Btrieve Multi-User - EXECUTE Btrieve OPERATION AX = AB01h BX = process ID DS:DX -> 38-byte parameter record (see #3011 at INT 7B"Btrieve") Return: AL = status 00h OK other retry after calling INT 7F/AX=0200h SeeAlso: AX=AB00h"Btrieve",AX=AB02h"Btrieve",INT 7B"Btrieve",INT 7F/AX=0200h ----------2FAB01----------------------------- INT 2F - SRSoft MODAL PC v2+ - GET PROCESS RUN PARAMETER AX = AB01h Return: AX = 5253h ('SR' byte-swapped) if installed BL = run parameter 00h normal process 01h run with tracing enabled 02h run initialization process (first thread of main task) SeeAlso: AX=AB00h"MODAL",AX=AB02h"MODAL" --------f-2FAB02----------------------------- INT 2F - Btrieve Multi-User - GET NEW PROCESS ID AX = AB02h Return: AL = 00h successful BX = process ID AL > 00h failed, retry after calling INT 7F/AX=0200h SeeAlso: AX=AB00h,AX=AB01h,INT 7B"Btrieve",INT 7F/AX=0200h ----------2FAB02----------------------------- INT 2F - SRSoft MODAL PC v2+ - SET PROCESS EXIT CODE AX = AB02h BL = exit code Return: AX = 5253h ('SR' byte-swapped) if installed SeeAlso: AX=AB00h"MODAL",AX=AB01h"MODAL",AX=AB03h"MODAL" ----------2FAB03----------------------------- INT 2F - SRSoft MODAL PC v2+ - ALLOCATE COMMON MEMORY AX = AB03h BX = required size of common memory for variables/semaphores in bytes Return: AX = 5253h ('SR' byte-swapped) if installed SeeAlso: AX=AB00h"MODAL",AX=AB02h"MODAL",AX=AB04h"MODAL" ----------2FAB04----------------------------- INT 2F - SRSoft MODAL PC v2+ - GET ALL COMMON VARIABLES AND SEMAPHORES AX = AB04h DS:DX -> buffer for common data Return: AX = 5253h ('SR' byte-swapped) if installed CF clear if successful CF set on error SeeAlso: AX=AB00h"MODAL",AX=AB03h"MODAL",AX=AB05h"MODAL",AX=AB06h,AX=AB07h ----------2FAB05----------------------------- INT 2F - SRSoft MODAL PC v2+ - SET ALL COMMON VARIABLES AND SEMAPHORES AX = AB05h DS:DX -> buffer containing common data Return: AX = 5253h ('SR' byte-swapped) if installed CF clear if successful CF set on error SeeAlso: AX=AB00h"MODAL",AX=AB03h"MODAL",AX=AB04h"MODAL",AX=AB06h,AX=AB07h ----------2FAB06----------------------------- INT 2F - SRSoft MODAL PC v2+ - GET A COMMON VARIABLE OR SEMAPHORE AX = AB06h BX = offset of variable or semaphore in common memory CX = variable/semaphore size in bytes DS:DX -> buffer for variable or semaphore Return: AX = 5253h ('SR' byte-swapped) if installed CF clear if successful CF set on error SeeAlso: AX=AB00h"MODAL",AX=AB04h,AX=AB05h,AX=AB07h ----------2FAB07----------------------------- INT 2F - SRSoft MODAL PC v2+ - SET A COMMON VARIABLE OR SEMAPHORE AX = AB07h BX = offset of variable or semaphore in common memory CX = variable/semaphore size in bytes DS:DX -> buffer containing variable or semaphore Return: AX = 5253h ('SR' byte-swapped) if installed CF clear if successful CF set on error SeeAlso: AX=AB00h"MODAL",AX=AB04h,AX=AB05h,AX=AB06h --------U-2FAC------------------------------- INT 2F u - Player's Tool 3.996b+ - POP UP AH = ACh Return: AX = 1001h SeeAlso: AH=AAh"Player's Tool",AH=ABh"Player's Tool" --------V-2FAC00----------------------------- INT 2F - DOS 4.01+ GRAPHICS.COM - INSTALLATION CHECK AX = AC00h Return: AX = FFFFh ES:DI -> ??? (graphics data?) (not documented) Note: this installation check was moved here to avoid the conflict with the CD-ROM extensions that occurred in DOS 4.00 SeeAlso: AX=1500h"GRAPHICS" --------V-2FAC00DI1092----------------------- INT 2F - QRIP/TSR - GIVE CPU TO QRIP AX = AC00h DI = 1092h Return: nothing Program: QRIP/TSR is a shareware TSR by Shane Hathaway implementing the Remote Imaging Protocol (RIP, RIPscrip) used by several BBS systems to provide a graphical user interface Desc: give QRIP some CPU time to update music and flashing timers Notes: if DI <> 1092h on entry, QRIP chains the call this function should be called regularly whenever the terminal program is otherwise idle; the updates are automatically performed on any other QRIP call SeeAlso: AX=AC01h,AX=ACF0h --------V-2FAC01DI1092----------------------- INT 2F - QRIP/TSR - CHANGE INTERNAL FLAGS AX = AC01h DI = 1092h BX = flags to be turned on (see #2174) CX = flags to be turned off (see #2174) Return: AX = 9142h if installed DX = DOS-takeover flag (nonzero if QRIP able to take over DOS) ---if DX nonzero--- BX = QRIP version number in hex (BH = major, BL = minor) CX = new flags (see #2174) Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC00h/DI=1092h,AX=ACF0h Bitfields for QRIP internal flags: Bit(s) Description (Table 2174) 0 ANSI emulation enabled (default on) 1 RIP emulation enabled (default on) 2 graphical commands allowed (default on) 3 TTY text allowed (default on) 4 disable @ variables (default off in TSR mode) 5 wait for key on RIP "end scene" command (default off) 6 anti-stripping (default off in TSR mode) 7 sound enabled (default on) 8 automatic message filter (default off in TSR mode) 9 display-only mode (no user prompts) 10 TTY text suppression (default off in TSR mode) 11-15 reserved --------V-2FAC02DI1092----------------------- INT 2F - QRIP/TSR - TURN OFF GRAPHICS SCREEN AX = AC02h DI = 1092h Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC03h,AX=ACF0h --------V-2FAC03DI1092----------------------- INT 2F - QRIP/TSR - TURN ON GRAPHICS SCREEN AX = AC03h DI = 1092h Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call this function does not restore the contents of the screen (see AX=AC15h) SeeAlso: AX=AC02h,AX=AC14h,AX=AC15h --------V-2FAC04DI1092----------------------- INT 2F - QRIP/TSR - OUTPUT STRING THROUGH QRIP AX = AC04h DI = 1092h DX:BX -> string CX = length of string Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC05h,AX=AC09h,AX=AC0Ah,AX=ACF0h --------V-2FAC05DI1092----------------------- INT 2F - QRIP/TSR - OUTPUT NULL-TERMINATED STRING THROUGH QRIP AX = AC05h DI = 1092h DX:BX -> ASCIZ string Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC04h,AX=AC06h,AX=AC09h,AX=AC0Ah,AX=ACF0h --------V-2FAC06DI1092----------------------- INT 2F - QRIP/TSR - RECEIVE CHARACTERS FROM QRIP AX = AC06h DI = 1092h Return: AX = character to send to BBS (0001h-00FFh) or special code (see #2175) BX = string-waiting flag 0001h entire string waiting to be sent to terminal (call AX=AC0Ch) CX = DX = AX Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC04h,AX=AC05h,AX=AC0Ch,AX=AC16h,AX=AC18h,AX=AC1Ah (Table 2175) Values for QRIP special codes: 0000h if none 0100h wait for user keypress (must call AX=AC16h/BL=00h or AX=AC18h) 0101h both/middle mouse button pressed 0102h entering block mode (up/download) (call AX=AC1Ah) 0103h right mouse button pressed 0104h BBS requested status bar on 0105h BBS requested status bar off 0106h BBS requested VT-102 terminal emulation (keypad keys should send VT-102 escape codes) 0107h BBS requested VT-102 mode off 0108h BBS requested doorway mode (raw IBM keyboard ASCII/scan code pairs) 0109h BBS requested doorway mode off 010Ah hotkey mode on 010Bh hotkey mode off 010Ch BBS requested Tab-key button changing on 010Dh BBS requested Tab-key mode off 010Eh XOFF (use flow control to stop incoming characters) 010Fh XON (use flow control to resume incoming characters) 0110h-0119h BBS requested application (0-9) be run application 0 should be a standard text editor 01FFh send ASCII 00h to BBS Note: for special codes 0104h to 010Dh, the terminal program should report any mode changes it make in response by calling AX=AC16h --------V-2FAC07DI1092----------------------- INT 2F - QRIP/TSR - GET FONT DIRECTORY AX = AC07h DI = 1092h Return: DX:BX -> 80-byte internal buffer containing ASCIZ font directory name Notes: if DI <> 1092h on entry, QRIP chains the call the application may change the font directory by overwriting the returned buffer, ensuring that it does not exceed 80 bytes incl. NUL if changed, the new path will not become effective until the graphics screen is reinitialized SeeAlso: AX=AC08h,AX=ACF0h --------V-2FAC08DI1092----------------------- INT 2F - QRIP/TSR - GET ICON DIRECTORY AX = AC08h DI = 1092h Return: DX:BX -> 80-byte internal buffer containing ASCIZ icon directory name Notes: if DI <> 1092h on entry, QRIP chains the call the application may change the icon directory by overwriting the returned buffer, ensuring that it does not exceed 80 bytes incl. NUL, and includes a trailing backslash if changed, the new path becomes effective immediately SeeAlso: AX=AC07h,AX=ACF0h --------V-2FAC09DI1092----------------------- INT 2F - QRIP/TSR - OUTPUT STRING THROUGH QRIP AX = AC09h DI = 1092h DX:BX -> string CX = length of string Return: AX = character to send to BBS (0001h-00FFh) or special code (see #2175) BX = string-waiting flag 0001h entire string waiting to be sent to terminal (call AX=AC0Ch) CX = DX = AX Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC04h,AX=AC06h,AX=AC0Ah,AX=ACF0h --------V-2FAC0ADI1092----------------------- INT 2F - QRIP/TSR - OUTPUT NULL-TERMINATED STRING THROUGH QRIP AX = AC0Ah DI = 1092h DX:BX -> ASCIZ string Return: AX = character to send to BBS (0001h-00FFh) or special code (see #2175) BX = string-waiting flag 0001h entire string waiting to be sent to terminal (call AX=AC0Ch) CX = DX = AX Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC05h,AX=AC06h,AX=AC09h,AX=ACF0h --------V-2FAC0BDI1092----------------------- INT 2F - QRIP/TSR - EXECUTE RIP "END SCENE" COMMAND AX = AC0Bh DI = 1092h Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call enables all mouse buttons and cancels the RIP timeout SeeAlso: AX=AC01h,AX=AC04h,AX=ACF0h --------V-2FAC0CDI1092----------------------- INT 2F - QRIP/TSR - GET STRING TO BE SENT TO BBS AX = AC0Ch DI = 1092h Return: AX = status 0000h nothing to be sent 0001h a string is waiting to be sent DX:BX -> string to be sent (may contain NULs) CX = length of string 0002h special code waiting (call AX=AC06h) Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC06h,AX=ACF0h --------V-2FAC0DDI1092----------------------- INT 2F - QRIP/TSR - SET PROTECTED SCREEN AREA AX = AC0Dh DI = 1092h CL = number of text lines at bottom of screen to protect (00h = off) BL = attribute with which to fill area (bit 7 = high-int. background) Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC0Eh,AX=AC0Fh,AX=AC10h,AX=ACF0h --------V-2FAC0EDI1092----------------------- INT 2F - QRIP/TSR - WRITE ASCIZ STRING IN PROTECTED AREA AX = AC0Eh DI = 1092h DX:BX -> ASCIZ string to be written CL = column at which to begin writing CH = row number within protected area (00h = first line) Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC0Dh,AX=AC0Fh,AX=AC10h,AX=ACF0h --------V-2FAC0FDI1092----------------------- INT 2F - QRIP/TSR - SCROLL PROTECTED AREA AX = AC0Fh DI = 1092h BH,BL = row,column of upper-left corner in protected area DH,DL = row,column of lower-right corner CL = number of lines to scroll up Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC10h,AX=ACF0h --------V-2FAC10DI1092----------------------- INT 2F - QRIP/TSR - SET OUTPUT COLOR FOR PROTECTED AREA AX = AC10h DI = 1092h BL = new attribute (bit 7 set for high-intensity background) Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC0Fh,AX=AC11h,AX=ACF0h --------V-2FAC11DI1092----------------------- INT 2F - QRIP/TSR - CONVERT PROTECTED AREA TO ENTIRE SCREEN AX = AC11h DI = 1092h BX = mode (0000h = normal protect, 0001h = allow full-screen access) Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC0Dh,AX=AC0Eh,AX=AC0Fh,AX=AC10h,AX=AC12h,AX=ACF0h --------V-2FAC12DI1092----------------------- INT 2F - QRIP/TSR - BEGIN POPUP-WINDOW MODE AX = AC12h DI = 1092h Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call while popup-mode is in effect, the terminal program can write to the screen (and easily restore it) by outputting a RIP file with AX=AC04h or AX=AC05h QRIP will automatically drop out of popup-window mode if the terminal program invokes RIP pick-lists any changes to the protected area will be restored when popup-window mode is cancelled SeeAlso: AX=AC04h,AX=AC11h,AX=AC13h,AX=ACF0h --------V-2FAC13DI1092----------------------- INT 2F - QRIP/TSR - END POPUP-WINDOW MODE AX = AC13h DI = 1092h Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call restores screen SeeAlso: AX=AC12h,AX=ACF0h --------V-2FAC14DI1092----------------------- INT 2F - QRIP/TSR - SAVE GRAPHICS SCREEN AND SWITCH TO TEXT MODE AX = AC14h DI = 1092h Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC03h,AX=AC15h --------V-2FAC15DI1092----------------------- INT 2F - QRIP/TSR - RESTORE GRAPHICS SCREEN AX = AC15h DI = 1092h Return: nothing Desc: restores the graphics screen saved by the last call to AX=AC14h Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC03h,AX=AC14h --------V-2FAC16DI1092----------------------- INT 2F - QRIP/TSR - REPORT MODE CHANGE TO QRIP AX = AC16h DI = 1092h BL = new mode 00h terminate key wait 01h status bar on 02h status bar off 03h VT-102 mode on 04h VT-102 mode off 05h doorway mode on 06h doorway mode off 07h hotkeys mode on 08h hotkeys mode off 09h tabkey mode on 0Ah tabkey mode off Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call all modes default to OFF when QRIP is first installed --------V-2FAC17DI1092----------------------- INT 2F - QRIP/TSR - CALL (EXECUTE) A RIP FILE AX = AC17h DI = 1092h DX:BX -> ASCIZ filename for RIP file to be executed Return: nothing Notes: if DI <> 1092h on entry, QRIP chains the call the specified file may be in the current icon directory, the QRIP startup directory, or the current directory; any pathnames specified with the filename are ignored --------V-2FAC18DI1092----------------------- INT 2F - QRIP/TSR - SEND USER KEY TO QRIP AX = AC18h DI = 1092h BX = key (00xxh is normal ASCII, xx00h is an extended key) Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC06h,AX=ACF0h --------V-2FAC19DI1092----------------------- INT 2F - QRIP/TSR - HANGUP AX = AC19h DI = 1092h Return: nothing Desc: inform QRIP that carrier has been lost Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=ACF0h --------V-2FAC1ADI1092----------------------- INT 2F - QRIP/TSR - GET RIP_ENTER_BLOCK_MODE INFORMATION AX = AC1Ah DI = 1092h Return: AH = requested protocol (see #2176) AL = file type (see #2177) DX:BX -> ASCIZ filename or 0000h:0000h CX = length of filename Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=ACF0h (Table 2176) Values for QRIP protocol identifier: 00h Xmodem (checksum) 01h Xmodem-CRC 02h Xmodem-1K 03h Xmodem-1K-G 04h Kermit 05h Ymodem 06h Ymodem-G 07h Zmodem with crash recovery 08h-0Fh same as 00h-07h, but for uploading instead of downloading SeeAlso: #2177 (Table 2177) Values for QRIP file type: 00h RIP file sequence to be displayed 01h RIP file sequence to be stored in icon directory 02h ICN file sequence to be stored in icon directory 03h HLP file sequence to be stored, then auto-loaded if needed 04h COMPOSITE DYNAMIC file sequence (batch protocols only) 05h ACTIVE DYNAMIC file sequence (batch protocols only) Note: for file types 04h and 05h, any .RIP or .ICN files are stored in the icon directory; in mode 05h, any .RIP files are also played back as they are received SeeAlso: #2176 --------V-2FAC1BDI1092----------------------- INT 2F - QRIP/TSR - SET SYSTEM FONT SIZE AX = AC1Bh DI = 1092h BX = font size (see #2178) Return: nothing Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC04h,AX=ACF0h (Table 2178) Values for QRIP font size specifier: 00h 8x8 font, 80x43 screen 01h 7x8 font, 90x43 screen 02h 8x14 font, 80x25 screen 03h 7x14 font, 90x25 screen 04h 16x14 font, 40x25 screen --------V-2FACF0DI1092----------------------- INT 2F - QRIP/TSR - INSTALLATION CHECK AX = ACF0h DI = 1092h Return: AX = 9142h if installed DX = DOS-takeover flag (nonzero if QRIP able to take over DOS) ---if DX nonzero--- BX = QRIP version number in hex (BH = major, BL = minor) CX = current flags (see AX=AC01h) Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=AC00h/DI=1092h,AX=AC01h,AX=AC04h,AX=AC06h,AX=AC1Ah,AX=ACFFh --------V-2FACFFDI1092----------------------- INT 2F - QRIP/TSR - UNINSTALL AX = ACFFh DI = 1092h Return: AX = status 0000h unable to remove (interrupt vector hooked by another prog) 0001h successful 0002h unable to take over DOS at this time (retry uninstall) Note: if DI <> 1092h on entry, QRIP chains the call SeeAlso: AX=ACF0h --------V-2FAD00----------------------------- INT 2F U - DOS 3.3+ DISPLAY.SYS internal - INSTALLATION CHECK AX = AD00h Return: AL = FFh if installed BX = ??? (0100h for MS-DOS 3.3+) Note: DOS 5+ DISPLAY.SYS chains to previous handler if AL is not one of the subfunctions listed here SeeAlso: AX=AD01h"DISPLAY",AX=AD02h"DISPLAY" --------O-2FAD00----------------------------- INT 2F U - DR DOS 3.41-5.0, Novell DOS 7 KEYB - INSTALLATION CHECK AX = AD00h Return: AX = FFFFh if installed flags destroyed SeeAlso: AX=AD80h"Novell" --------V-2FAD01----------------------------- INT 2F U - DOS 3.3+ DISPLAY.SYS internal - SET ACTIVE CODE PAGE AX = AD01h BX = new code page (see #1060 at INT 21/AX=6602h) Return: CF clear if successful AX = 0001h CF set on error (unsupported code page) AX = 0000h SeeAlso: AX=AD02h"DISPLAY" --------O-2FAD01----------------------------- INT 2F U - DR DOS 3.41,5.0 KEYB - GET CONFIGURATION AX = AD01h Return: BX = current code page (see #1060 at INT 21/AX=6602h) CX = current keyboard layout (0100h = US, 0102h = foreign) ES = resident code segment SeeAlso: AX=AD00h"KEYB",AX=AD02h"KEYB",AX=AD83h"KEYB" --------V-2FAD02----------------------------- INT 2F U - DOS 3.3+ DISPLAY.SYS internal - GET ACTIVE CODE PAGE AX = AD02h Return: CF set if code page never set AX = 0001h BX = FFFFh (assume first hardware code page) CF clear if successful BX = current code page (see #1060 at INT 21/AX=6602h) SeeAlso: AX=AD01h"DISPLAY",AX=AD03h --------O-2FAD02----------------------------- INT 2F U - Novell DOS 7 KEYB - ??? AX = AD02h DX = ??? (0000h) Return: AX = FFFFh if installed flags destroyed SeeAlso: AX=AD01h"KEYB" --------V-2FAD03----------------------------- INT 2F U - DOS 3.3+ DISPLAY.SYS internal - GET CODE PAGE INFORMATION AX = AD03h ES:DI -> buffer for code page information (see #2179) CX = size of buffer in bytes Return: CF set if buffer too small CF clear if successful ES:DI buffer filled SeeAlso: AX=AD01h,AX=AD02h Format of DOS 5.0-6.0 DISPLAY.SYS code page information: Offset Size Description (Table 2179) 00h WORD number of software code pages 02h WORD ??? (0003h) 04h WORD number of hardware code pages 06h N WORDs hardware code page numbers (see #1060 at INT 21/AX=6602h) N WORDs software (prepared) code pages (FFFFh if not yet prepared) --------V-2FAD04----------------------------- INT 2F U - DOS 4.x only DISPLAY.SYS internal - ??? AX = AD04h ??? Return: ??? --------V-2FAD10----------------------------- INT 2F U - DOS 4.x DISPLAY.SYS internal - INSTALLATION CHECK??? AX = AD10h ??? Return: AX = FFFFh BX = ??? (0100h in PC-DOS 4.01) --------V-2FAD10----------------------------- INT 2F U - DOS 5+ DISPLAY.SYS internal - ??? AX = AD10h ??? Return: CF clear if successful CF set on error Note: this function is a NOP if the active code page has never been set (AX=AD02h returns BX=FFFFh); its purpose otherwise is not known --------V-2FAD40----------------------------- INT 2F - DOS 4.0+ - ??? AX = AD40h DX = ??? ??? Return: ??? Note: called by PC-DOS 4.01 PRINT.COM --------K-2FAD80----------------------------- INT 2F u - MS-DOS 3.3+ KEYB.COM internal - INSTALLATION CHECK AX = AD80h Return: AL = FFh if installed BX = version number (BH = major, BL = minor) ES:DI -> internal data (see #2180) AH destroyed (set to FFh by some implementations/versions) Notes: MS-DOS 3.30, PC-DOS 4.01, and MS-DOS 5.00 all report version 1.00. this function was undocumented prior to the release of DOS 5.0 SeeAlso: AX=AD80h"Novell",AX=AD81h,AX=AD82h,AX=AD83h Format of KEYB internal data: Offset Size Description (Table 2180) 00h DWORD original INT 09 04h DWORD original INT 2F 08h 6 BYTEs ??? 0Eh WORD flags (see #2181) 10h BYTE ??? 11h BYTE ??? 12h 4 BYTEs ??? 16h 2 BYTEs country ID letters 18h WORD current code page (see #1060 at INT 21/AX=6602h) ---DOS 3.3--- 1Ah WORD pointer to first item in list of code page tables??? 1Ch WORD pointer to ??? item in list of code page tables 1Eh 2 BYTEs ??? 20h WORD pointer to key translation data (see #2183) 22h WORD pointer to last item in code page table list (see #2182) 24h 9 BYTEs ??? ---DOS 4.01--- 1Ah 2 BYTEs ??? 1Ch WORD pointer to first item in list of code page tables??? 1Eh WORD pointer to ??? item in list of code page tables 20h 2 BYTEs ??? 22h WORD pointer to key translation data (see #2183) 24h WORD pointer to last item in code page table list (see #2182) 26h 9 BYTEs ??? Note: at least in MS-DOS v6.22, the signature "SHARED DATA" immediately precedes this structure Bitfields for MS-DOS v6.22 KEYB flags: Bit(s) Description (Table 2181) 15 INT 16/AH=1xh supported (INT 16h/AH=92h call returns AH<=80h) 14 INT 16/AH=2xh supported (INT 16h/AH=A2h call returns AH<=80h) 13 unused (0) 12 network installed (INT 2F/AX=B800h) 11 original IBM PC (BIOS date 1981) 10 PC or PC/XT (BIOS machine type byte of FBh or FEh) 9 PC Convertible (BIOS machine type byte of F9h); use INT 15/AX=4104h 8 unused (0) 7 IBM PS/2 model 30 (BIOS machine type byte of FAh) 6 IBM AT (BIOS machine type FCh) 5 IBM PS/2 (BIOS machine type F8h) 4 PS/2 and unknown only: non-standard 8042 or no AT->PC scancode translation??? 3 temporary flag??? 2-0 ??? SeeAlso: #2180 Format of code page table list entries: Offset Size Description (Table 2182) 00h WORD pointer to next item, FFFFh = last 02h WORD code page (see #1060 at INT 21/AX=6602h) 04h 2 BYTEs ??? Format of KEYB translation data: Offset Size Description (Table 2183) 00h WORD size of data in bytes, including this word 02h N-2 BYTEs ??? --------K-2FAD80----------------------------- INT 2F u - Novell DOS 7 KEYB.COM - INSTALLATION CHECK AX = AD80h Return: AX = FFFFh if installed CX = Novell DOS KEYB version number (CL = major, CH = minor) DX = current keyboard codepage ES:DI -> internal data and tables (ES=FFFEh if KEYB in HMA) flags destroyed Note: versions: v2.08 (original ship 4/94), v2.09 (Update 10, 11/18/94), v2.10 (Update 12, 2/22/95), v2.11 (Update 13, 5/8/95), v2.12 (Update 14, 7/31/95) SeeAlso: AX=AD80h"MS-DOS" --------K-2FAD81----------------------------- INT 2F - DOS 3.3+ KEYB.COM - SET KEYBOARD CODE PAGE AX = AD81h BX = code page (see #1060 at INT 21/AX=6601h) Return: CF set on error AX = 0001h (code page not available) CF clear if successful Notes: called by DISPLAY.SYS this function was undocumented prior to the release of DOS 5.0 SeeAlso: AX=AD80h,AX=AD82h --------K-2FAD82----------------------------- INT 2F - DOS 3.3+ KEYB.COM - SET KEYBOARD MAPPING AX = AD82h BL = new state 00h US keyboard (Control-Alt-F1) FFh foreign keyboard (Control-Alt-F2) Return: CF set on error (BL not 00h or FFh) CF clear if successful Note: this function was undocumented prior to the release of DOS 5.0 SeeAlso: AX=AD80h,AX=AD81h,AX=AD83h --------K-2FAD83----------------------------- INT 2F - DOS 5+ KEYB.COM - GET KEYBOARD MAPPING AX = AD83h Return: BL = current state 00h US keyboard FFh foreign keyboard SeeAlso: AX=AD82h --------l-2FAE00----------------------------- INT 2F U - DOS 3.3+ internal - INSTALLABLE COMMAND - INSTALLATION CHECK AX = AE00h DX = magic value FFFFh CH = FFh CL = length of command line tail (4DOS v4.0) DS:BX -> command line buffer (see #2184) DS:SI -> command name buffer (see #2185) DI = 0000h (4DOS v4.0) Return: AL = FFh if this command is a TSR extension to COMMAND.COM AL = 00h if the command should be executed as usual Notes: This call provides a mechanism for TSRs to install permanent extensions to the command repertoire of COMMAND.COM. It appears that COMMAND.COM makes this call before executing the current command line, and does not execute it itself if the return is FFh. APPEND hooks this call, to allow subsequent APPEND commands to execute without re-running APPEND SeeAlso: AX=AE01h Format of COMMAND.COM command line buffer: Offset Size Description (Table 2184) 00h BYTE max length of command line, as in INT 21/AH=0Ah 01h BYTE count of bytes to follow, excluding terminating 0Dh N BYTEs command line text, terminated by 0Dh Format of command name buffer: Offset Size Description (Table 2185) 00h BYTE length of command name 01h N BYTEs uppercased command name (blank-padded to 11 chars by 4DOS v4) --------l-2FAE01----------------------------- INT 2F U - DOS 3.3+ internal - INSTALLABLE COMMAND - EXECUTE AX = AE01h DX = magic value FFFFh CH = 00h CL = length of command name (4DOS v4.0) DS:BX -> command line buffer (see #2184) DS:SI -> command name buffer (see #2185) Return: DS:SI buffer updated if length byte is nonzero, the following bytes contain the uppercase internal command to execute and the command line buffer contains the command's parameters (the first DS:[SI] bytes are ignored) Notes: this call requests execution of the command which a previous call to AX=AE00h indicated was resident APPEND hooks this call BUG: Novell DOS 7.0's COMMAND.COM (prior to Update 12) will attempt to run a disk program with the indicated name even if the returned length byte is zero, because the register used to flag this case is clobbered without first checking it. The workaround is to set the command name buffer to "REM" followed by enough blanks to pad out the original command's length, which will also work with MS-DOS 6. (from padgett@tccslr.dnet.mmc.com) SeeAlso: AX=AE00h --------O-2FAF00----------------------------- INT 2F - WinDOS v2.11 - INSTALLATION CHECK AX = AF00h Return: AL = FFh if installed Program: WinDOS is a DOS clone (claimed to be mostly MS-DOS 5.0 API compatible) written by Heiko Goemann SeeAlso: AX=AF01h"WinDOS",INT 21/AH=30h ----------2FAF00----------------------------- INT 2F U - ??? AX = AF00h ??? Return: AX = 0000h if interface supported SeeAlso: AX=AF02h,AX=AF03h,AX=AF04h,AX=AF13h,AX=AF30h --------O-2FAF01----------------------------- INT 2F - WinDOS v2.11 - TURN ON ONLINE MODE AX = AF01h Return: nothing Desc: indicate that the user will not exchange floppy disks, allowing WinDOS to cache disk sectors in memory and avoid writing modified sectors back out to the floppy disk SeeAlso: AX=AF00h"WinDOS",AX=AF02h"WinDOS" --------O-2FAF02----------------------------- INT 2F - WinDOS v2.11 - TURN OFF ONLINE MODE AX = AF02h Return: nothing Desc: indicate that the floppy disk may be removed, and that WinDOS should write all buffered sectors out to the floppy disk SeeAlso: AX=AF00h"WinDOS",AX=AF01h"WinDOS" ----------2FAF02----------------------------- INT 2F U - ??? AX = AF02h ??? Return: ES = ??? SeeAlso: AX=AF00h --------O-2FAF03----------------------------- INT 2F - WinDOS v2.11 - TURN VIDMEM ON AX = AF03h Return: AX = status 0000h successful 0001h CPU not in mode set by DOS386=On 0002h video adapter in graphics mode 0003h memory chain corrupted SeeAlso: AX=AF00h"WinDOS",AX=AF04h"WinDOS",AX=AF05h"WinDOS" ----------2FAF03----------------------------- INT 2F U - ??? AX = AF03h ??? Return: DX = ??? SeeAlso: AX=AF00h --------O-2FAF04----------------------------- INT 2F - WinDOS v2.11 - TURN VIDMEM OFF AX = AF04h Return: AX = status 0000h successful 0001h video memory is in use SeeAlso: AX=AF00h"WinDOS",AX=AF03h"WinDOS",AX=AF05h"WinDOS" ----------2FAF04----------------------------- INT 2F U - ??? AX = AF04h ??? Return: ??? SeeAlso: AX=AF00h --------O-2FAF05----------------------------- INT 2F - WinDOS v2.11 - GET VIDMEM STATE AX = AF05h Return: AX = status (0000h off, 0001h on) SeeAlso: AX=AF00h"WinDOS",AX=AF03h"WinDOS",AX=AF04h"WinDOS" ----------2FAF05----------------------------- INT 2F U - ??? AX = AF05h ??? Return: ??? SeeAlso: AX=AF00h --------O-2FAF06----------------------------- INT 2F - WinDOS v2.11 - MAKE PROGRAM UNBREAKABLE AX = AF06h DS:DX -> break handler DI:BX = stack to use for break handler Return: nothing Desc: set a handler which should be invoked when Ctrl-C is pressed instead of aborting the program SeeAlso: AX=AF00h"WinDOS",AX=AF0Ah"WinDOS",AX=AF0Ch"WinDOS" --------O-2FAF07----------------------------- INT 2F - WinDOS v2.11 - SIGNAL FATAL OVERLAY FAULT AX = AF07h Return: never -- system reset Desc: pop up a window indicating that the system overlay file can not be loaded SeeAlso: AX=AF00h"WinDOS",AX=AF08h"WinDOS" --------O-2FAF08----------------------------- INT 2F - WinDOS v2.11 - SIGNAL RECOVERABLE OVERLAY FAULT AX = AF08h Return: nothing Desc: pop up a window requesting that a disk containing SH.OVL be inserted SeeAlso: AX=AF00h"WinDOS",AX=AF07h"WinDOS",AX=AF0Bh --------O-2FAF09----------------------------- INT 2F - WinDOS v2.11 - GET TERMINATED PSP AX = AF09h Return: DS = PSP segment of most recently ended TSR SeeAlso: AX=AF00h"WinDOS",AX=AF0Ah --------O-2FAF0A----------------------------- INT 2F - WinDOS v2.11 - GET MAIN SHELL PSP AX = AF0Ah Return: AX = shell's PSP (same as DS on last call to AX=AF06h) Desc: get the PSP address of the last program to call AX=AF06h (normally the main command interpreter) SeeAlso: AX=AF00h"WinDOS",AX=AF06h"WinDOS",AX=AF09h --------O-2FAF0B----------------------------- INT 2F - WinDOS v2.11 - SIGNAL FATAL ERROR AX = AF0Bh Return: never -- system reset Desc: pop up a window indicating a terminal system error SeeAlso: AX=AF00h"WinDOS",AX=AF07h,AX=AF08h,AX=AF15h"WinDOS" --------O-2FAF0C----------------------------- INT 2F - WinDOS v2.11 - GET OTHER MAIN SHELL PARAMETERS AX = AF0Ch Return: DI:AX = stack SI = offset of break handler Desc: retrieve the parameters last set by AX=AF06h (normally by the main command interpreter) SeeAlso: AX=AF00h"WinDOS",AX=AF06h"WinDOS" --------O-2FAF0D----------------------------- INT 2F - WinDOS v2.11 - GET CURRENT PARAMETER AX = AF0Dh BX = offset of desired parameter in global data area Return: AX = current value of parameter (AH undefined if byte value) SeeAlso: AX=AF00h"WinDOS",AX=AF0Eh --------O-2FAF0E----------------------------- INT 2F - WinDOS v2.11 - SET CURRENT PARAMETER BYTE VALUE AX = AF0Eh BX = offset of desired parameter in global data area DL = new value of parameter Return: nothing SeeAlso: AX=AF00h"WinDOS",AX=AF0Dh --------O-2FAF0F----------------------------- INT 2F - WinDOS v2.11 - GET HISTORY SEGMENT AX = AF0Fh Return: AX = segment of buffer for input history, or 0000h if none SeeAlso: AX=AF00h"WinDOS",AX=AF10h"WinDOS" --------O-2FAF10----------------------------- INT 2F - WinDOS v2.11 - SET HISTORY SEGMENT AX = AF10h BX = segment of new buffer for input history Return: nothing Note: the buffer must have been allocated with INT 21/AH=48h SeeAlso: AX=AF00h"WinDOS",AX=AF0Fh"WinDOS" --------O-2FAF11----------------------------- INT 2F - WinDOS v2.11 - FREE XMS BLOCKS AX = AF11h Return: nothing Desc: free all XMS blocks whose XMS identification value (see AX=AF12h) equals the current PSP SeeAlso: AX=AF00h"WinDOS",AX=AF12h"WinDOS",INT 21/AH=50h --------O-2FAF12----------------------------- INT 2F - WinDOS v2.11 - SET XMS IDENTIFICATION VALUE AX = AF12h DS = new XMS identification value (normally caller's PSP segment) Return: nothing SeeAlso: AX=AF00h"WinDOS",AX=AF11h"WinDOS" ----------2FAF12----------------------------- INT 2F U - ??? AX = AF12h ??? Return: ES = ??? SeeAlso: AX=AF00h --------O-2FAF13----------------------------- INT 2F - WinDOS v2.11 - SET ASSIGN VALUE AX = AF13h BL = number of drive to remap (00h = A:) DL = number of drive to be accessed via drive number BL Return: nothing Desc: remap a drive letter Note: the remapping can be canceled by specifying DL=BL SeeAlso: AX=AF00h"WinDOS",AX=AF14h"WinDOS",AX=0601h ----------2FAF13----------------------------- INT 2F U - ??? AX = AF13h ??? Return: ??? SeeAlso: AX=AF00h --------O-2FAF14----------------------------- INT 2F - WinDOS v2.11 - GET ASSIGN VALUE AX = AF14h BL = drive number (00h = A:) Return: DL = drive number which is actually accessed by drive number BL Desc: determine the current mapping for a drive SeeAlso: AX=AF00h"WinDOS",AX=AF13h"WinDOS",AX=0601h --------O-2FAF15----------------------------- INT 2F - WinDOS v2.11 - SIGNAL STACK ERROR AX = AF15h Return: never -- system reset Desc: pop up a window indicating a stack overflow SeeAlso: AX=AF00h"WinDOS",AX=AF0Bh"WinDOS" --------O-2FAF16----------------------------- INT 2F - WinDOS v2.11 - GET SIMPLE TRUENAME AX = AF16h DS:SI -> path to be canonicalized ES:DI -> buffer for canonicalized filename/pathname Return: CF clear if successful AX = 0000h CF set on error AX = DOS error code (see #0980 at INT 21/AH=59h) Desc: partially canonicalize a path, omitting SUBST, JOIN, ASSIGN, and network redirections SeeAlso: AX=AF00h"WinDOS",INT 21/AH=60h --------O-2FAF17----------------------------- INT 2F - WinDOS v2.11 - QUERY FOR NEW CURRENT DRIVE AX = AF17h Return: nothing Desc: pop up a dialog allowing the user to select a new default drive SeeAlso: AX=AF00h"WinDOS" --------O-2FAF18----------------------------- INT 2F - WinDOS v2.11 - SET CTRL-C/CTRL-BREAK DISABLE FLAG AX = AF18h DL = new break-checking state (00h enabled, 01h disabled) Return: nothing SeeAlso: AX=AF00h"WinDOS" --------O-2FAF19----------------------------- INT 2F - WinDOS v2.11 - SET HEAD SETTLE FLAG AX = AF19h DL = new state 00h diskette head settling time reset to 15ms before each access 01h no additional head settling time used between accesses Return: nothing SeeAlso: AX=AF00h"WinDOS" --------O-2FAF1A----------------------------- INT 2F - WinDOS v2.11 - SEARCH FOR NON-FRAGMENTED DISK AREA AX = AF1Ah BL = drive (00h = current, 01h = A:, etc.) CX = number of clusters desired Return: CF clear if successful DI = first free cluster on logical drive BP = first cluster of contiguous free area AX destroyed CF set on error AX = DOS error code (see #0980 at INT 21/AH=59h) Desc: attempt to find an area of the disk containing the specified number of contiguous unallocated clusters SeeAlso: AX=AF00h"WinDOS" ----------2FAF30----------------------------- INT 2F U - ??? AX = AF30h ??? Return: ??? SeeAlso: AX=AF00h --------d-2FAFDE----------------------------- INT 2F - Disk-Emu - INSTALLATION CHECK / GET VERSION AX = AFDEh ES:DI -> 14-byte buffer for data (see #2186) Return: AX = CFDEh (Carlos Fernandez Disk-Emu) if installed BX = version (BH = major, BL = minor) Format of Disk-Emu information data: Offset Size Description (Table 2186) 00h BYTE number of tracks 01h BYTE sectors per track 02h WORD bytes per sector 04h BYTE number of heads 05h BYTE flag: 00h inactive, 01h active 06h BYTE write protection (00h none, 01h full, 02h pseudo) 07h BYTE saved (00h some unsaved data, 01h all data saved) 08h BYTE disk in memory (00h no, 01h yes) 09h WORD EMS handle 0Bh WORD XMS handle 0Dh BYTE memory type used for disk (00h XMS, 01h EMS) --------V-2FB000----------------------------- INT 2F - DOS 3.3+ GRAFTABL.COM - INSTALLATION CHECK AX = B000h Return: AL = status 00h not installed, OK to install 01h not installed, not OK to install FFh installed Notes: called by DISPLAY.SYS documented for DOS 5.0, but undocumented in prior versions SeeAlso: AX=2300h,AX=2E00h,AX=B001h --------V-2FB001----------------------------- INT 2F - DOS 3.3+ GRAFTABL.COM - GET GRAPHICS FONT TABLE AX = B001h DS:BX -> DWORD buffer for address of 8x8 font table Return: buffer filled AL = FFh Note: PC-DOS 3.30/4.01 and MS-DOS 6.0 set the font table offset to 0130h, MS-DOS 3.30 sets it to 0030h SeeAlso: AH=2Eh"GRAFTABL",AX=B000h --------I-2FB400----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - INSTALLATION CHECK AX = B400h Return: AL = FFh if installed --------I-2FB401----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - GET HOST BUFFER ADDRESS AX = B401h Return: ES -> host screen buffer (PC ASCII format) ES unchanged if communications not started --------I-2FB402----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - ??? AX = B402h BX = ??? Return: ??? --------I-2FB403----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - ??? AX = B403h ??? Return: ??? --------I-2FB404----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - ??? AX = B404h ??? Return: ??? --------I-2FB405----------------------------- INT 2F - IBM PC3270 EMULATION PROG v3 - ??? AX = B405h ??? Return: ??? --------f-2FB700----------------------------- INT 2F - APPEND - INSTALLATION CHECK AX = B700h Return: AL = status 00h not installed FFh installed Note: MS-DOS 3.30 APPEND refuses to install itself when run inside TopView or a TopView-compatible environment SeeAlso: AX=B702h --------f-2FB701----------------------------- INT 2F U - APPEND v3.21 only - GET APPEND PATH AX = B701h Return: ES:DI -> active APPEND path Notes: the only version of APPEND known to support this call is the APPEND shipped with Microtek MS-DOS 3.21; MS-DOS 3.30-6.00 APPEND displays "Incorrect APPEND Version" and aborts the caller use AX=B704h first, and only call this function if that one is not supported SeeAlso: AX=B700h,AX=B704h --------f-2FB702----------------------------- INT 2F - APPEND - GET VERSION AX = B702h Return: AX = FFFFh if not DOS 4.0 APPEND (also if DOS 5.0 APPEND) AL = major version number AH = minor version number, otherwise SeeAlso: AX=B700h,AX=B710h --------f-2FB703----------------------------- INT 2F U - DOS 3.3, DOS 5.0 APPEND - HOOK INT 21 AX = B703h ES:DI -> INT 21 handler APPEND should chain to Return: ES:DI -> APPEND's INT 21 handler Note: each invocation of this function toggles a flag which APPEND uses to determine whether to chain to the user handler or the original INT 21 SeeAlso: AX=B700h,AX=B706h --------f-2FB704----------------------------- INT 2F - DOS 3.3+ APPEND - GET APPEND PATH AX = B704h Return: ES:DI -> active APPEND path (128 bytes max) Note: some versions of append do not support this call, and return ES unchanged; in this case, you should call AX=B701h to get the APPEND path SeeAlso: AX=B701h --------f-2FB706----------------------------- INT 2F - DOS 4.0+ APPEND - GET APPEND FUNCTION STATE AX = B706h Return: BX = APPEND state (see #2187) SeeAlso: AX=B700h,AX=B707h Bitfields for APPEND state: Bit(s) Description (Table 2187) 0 set if APPEND enabled 1-11 reserved 12 (DOS 5.0) set if APPEND applies directory search even if a drive has been specified 13 set if /PATH flag active 14 set if /E flag active (environment var APPEND exists) 15 set if /X flag active --------f-2FB707----------------------------- INT 2F - DOS 4.0+ APPEND - SET APPEND FUNCTION STATE AX = B707h BX = APPEND state bits (see #2187) SeeAlso: AX=B700h,AX=B706h --------f-2FB710----------------------------- INT 2F U - DOS 3.3+ APPEND - GET VERSION INFO AX = B710h Return: AX = current APPEND state (see #2187) BX = ??? (0000h in MS-DOS 3.30 and 5.00) CX = ??? (0000h in MS-DOS 3.30 and 5.00) DL = major version DH = minor version SeeAlso: AX=B700h,AX=B702h --------f-2FB711----------------------------- INT 2F - DOS 4.0+ APPEND - SET RETURN FOUND NAME STATE AX = B711h Note: if the next INT 21h call (and ONLY the next) is function 3Dh, 43h, or 6Ch (also 4B03h and 4Eh if /X active), the fully qualified filename is written over top of the filename passed to the INT 21h call. The application must provide a sufficiently large buffer. This state is reset after the next INT 21h call processed by APPEND. APPEND uses the byte at offset 3Dh in the PSP (see #0691 at INT 21/AH=26h) to store the flag telling it to overwrite the filename BUG: DOS 4.0 APPEND reportedly overwrites DS:DX instead of DS:SI for INT 21/AH=6Ch SeeAlso: INT 21/AH=26h,INT 21/AH=4Eh --------N-2FB800----------------------------- INT 2F - NETWORK - INSTALLATION CHECK AX = B800h Return: AL = status 00h not installed nonzero installed BX = installed component flags (test in this order!) bit 6 server bit 2 messenger bit 7 receiver bit 3 redirector bit 1 LANPUP (LANtastic 4.0) Notes: this function is supported by PC LAN Program, LAN Manager, LANtastic, NetWare Lite, SilverNET, 10NET, etc. LANtastic and NetWare Lite use only BL for the return value, preserving BH; LAN Manager and DOS LAN Requester return BH=00h. This permits differentiation between those two groups by setting BH to a nonzero value before the call and checking its value on return. SeeAlso: AX=4E53h,AX=B809h --------N-2FB800CXF041----------------------- INT 2F - 10NET - INSTALLATION CHECK AX = B800h CX = F041h Return: AL = status 00h not installed nonzero installed BX = installed component flags (test in this order!) bit 6 server bit 2 messenger bit 7 receiver bit 3 redirector bit 1 LANPUP (LANtastic 4.0) CX = 10Net data segment CX:DX -> 10Net Configuration Table (see #0991 at INT 21/AX=5E01h"10NET") Note: if CX <> F041h on entry, neither CX nor DX will be changed, and this call becomes identical to the standard installation check above SeeAlso: AX=B800h"network",INT 21/AX=5E01h"10NET" --------N-2FB803----------------------------- INT 2F - NETWORK - GET NETWORK EVENT POST HANDLER AX = B803h Return: ES:BX -> current event post handler (see AX=B804h) Note: this function is supported by PC LAN Program, 10NET v5.0 SeeAlso: AC=B800h,AX=B804h,AX=B903h --------N-2FB804----------------------------- INT 2F - NETWORK - SET NETWORK EVENT POST HANDLER AX = B804h CX = (10NET) 0370h if 10Windows is hooking post handler ES:BX -> new event post handler (see #2188) Notes: used in conjunction with AX=B803h to hook into the network event post routine this function is supported by PC LAN Program, 10NET v5.0 The specified handler is called on any network event. Two events are defined: message received and critical network error. SeeAlso: AX=B800h,AX=B803h,AX=B904h (Table 2188) Values network post routine is called with: AX = 0000h single block message DS:SI -> ASCIZ originator name DS:DI -> ASCIZ destination name ES:BX -> text header (see #2189) AX = 0001h start multiple message block CX = block group ID DS:SI -> ASCIZ originator name DS:DI -> ASCIZ destination name AX = 0002h multiple block text CX = block group ID ES:BX -> text header (see #2189) AX = 0003h end multiple block message CX = block group ID AX = 0004h message aborted due to error CX = block group ID AX = 0101h server received badly formatted network request Return: AX = FFFFh (PC LAN will process error) AX = 0102h unexpected network error ES:BX -> NCB (see #2425 at INT 5C) AX = 0103h server received INT 24 error other registers as for INT 24, except AH is in BH Return: as below, but only 0000h and FFFFh allowed Return: AX = response code 0000h user post routine processed message 0001h PC LAN will process message, but message window not displayed FFFFh PC LAN will process message Format of text header: Offset Size Description (Table 2189) 00h WORD length of text (maximum 512 bytes) 02h N BYTEs text of message Note: all CRLF sequences in message text are replaced by 14h; all other values below 20h (space) are reserved --------N-2FB807----------------------------- INT 2F - NETWORK - GET NetBIOS NAME NUMBER OF MACHINE NAME AX = B807h Return: CH = NetBIOS name number of the machine name SeeAlso: INT 21/AX=5E00h --------N-2FB808----------------------------- INT 2F U - NETWORK - RELINK KEYBOARD HANDLER AX = B808h ES:BX -> INT 09 handler network should call after it finishes INT 09 Notes: this call replaces the address to which the network software chains on an INT 09 without preserving the original value. This allows a prior handler to unlink, but does not allow a new handler to be added such that the network gets the INT 09 first unless the new handler completely takes over INT 09 and never chains. this function is called by the DOS 3.2 KEYBxx.COM SeeAlso: AX=B908h --------N-2FB809----------------------------- INT 2F - NETWORK - LANtastic, NetWare Lite - GET VERSION AX = B809h Return: AH = major version AL = minor version (decimal) Notes: this function is supported in this form by LANtastic, NetWare Lite, SilverNET, ... NetWare Lite returns its own version number rather than a PC LAN compatibility version SeeAlso: AX=4E53h,AX=B800h,AX=B809h"PC LAN Program" --------N-2FB809----------------------------- INT 2F - NETWORK - PC LAN Program - GET VERSION AX = B809h Return: AH = minor version (decimal) AL = major version Notes: this function is supported in this form by PC LAN Program, LAN Manager, the DOS LAN Requester, and 10NET v5.0 10NET returns version 1.10 (AX=0A01h) for compatibility SeeAlso: AX=4E53h,AX=B800h,AX=B809h"LANtastic" --------N-2FB80A----------------------------- INT 2F u - PC Network 1.00 - ??? AX = B80Ah ??? Return: ??? Program: PC Network is an early networking package which was renamed the IBM PC Local Area Network Program (PC LAN Program) as of v1.10 Note: called by RECEIVER (equivalent to NetWare Lite SERVER) --------N-2FB80F----------------------------- INT 2F - DOS LAN Requester - GET START PARAMETERS AX = B80Fh CX = size of return data buffer ES:DI -> return data buffer (see #2190) Return: AX = status 00h network started nonzero network not started CX = number of bytes returned in buffer ES:DI buffer filled SeeAlso: AX=B809h"PC LAN Program" Format of DOS LAN Requester return data buffer: Offset Size Description (Table 2190) 00h BYTE major version 01h BYTE minor version 02h WORD configuration flags given when network was started (see #2191) 04h 15 BYTEs NET START machine name (space padded) 13h BYTE 00h 14h 9 BYTEs NET START domain name (NULL padded) 1Dh BYTE 00h 1Eh 32 BYTEs /WRK heuristics string (space padded, not terminated) 3Eh WORD /SRV value 40h WORD /ASG value 42h WORD /NBC value 44h WORD /NBS value 46h WORD /BBC value 48h WORD /BBS value 4Ah WORD /PBC value 4Ch WORD /PBS value 4Eh WORD /PFS value 50h WORD /PFT value 52h WORD /PWT value 54h WORD /KUC value 56h WORD /KST value 58h WORD /NVS value 5Ah WORD /NMS value 5Ch WORD /NDB value 5Eh WORD /MBI value 60h BYTE NetBIOS name number for machine name 61h BYTE NetBIOS name number for domain name 62h WORD NetBIOS sessions required for configuration 64h WORD NetBIOS commands required for configuration 66h WORD NetBIOS names required for configuration 68h 128 BYTEs NET START path (LANROOT) E8h BYTE 00h Bitfields for configuration flags: Bit(s) Description (Table 2191) 0 /NVS nonzero 1 /NMS nonzero 2 /API 3 /HIM 4 /LIM 5 /ENC 6 /POP 7 /EMS 8 /RPL 9-12 reserved 13 RDR started 14 RCV started 15 User is currently logged on --------N-2FB900----------------------------- INT 2F - PC Network RECEIVER.COM - INSTALLATION CHECK AX = B900h Return: AL = state 00h if not installed FFh if installed --------N-2FB901----------------------------- INT 2F - PC Network RECEIVER.COM - GET RECEIVER.COM INT 2F HANDLER ADDRESS AX = B901h Return: AL = ??? ES:BX -> RECEIVER.COM INT 2F handler Desc: allows more efficient execution by letting the caller bypass any other INT 2F handlers which have been added since RECEIVER.COM was installed --------N-2FB903----------------------------- INT 2F - PC Network RECEIVER.COM - GET RECEIVER.COM POST ADDRESS AX = B903h Return: ES:BX -> POST handler SeeAlso: AX=B803h,AX=B904h --------N-2FB904----------------------------- INT 2F - PC Network RECEIVER.COM - SET RECEIVER.COM POST ADDRESS AX = B904h ES:BX -> new POST handler SeeAlso: AX=B804h,AX=B903h --------N-2FB905----------------------------- INT 2F - PC Network RECEIVER.COM - GET FILENAME AX = B905h DS:BX -> 128-byte buffer for filename 1 DS:DX -> 128-byte buffer for filename 2 Return: buffers filled from RECEIVER.COM internal buffers Note: use of filenames is unknown, but one appears to be for storing messages SeeAlso: AX=B906h --------N-2FB906----------------------------- INT 2F - PC Network RECEIVER.COM - SET FILENAME AX = B906h DS:BX -> 128-byte buffer for filename 1 DS:DX -> 128-byte buffer for filename 2 Return: RECEIVER.COM internal buffers filled from user buffers Note: use of filenames is unknown, but one appears to be for storing messages SeeAlso: AX=B905h --------N-2FB908----------------------------- INT 2F - PC Network RECEIVER.COM - UNLINK KEYBOARD HANDLER AX = B908h ES:BX -> INT 09 handler RECEIVER should call after it finishes INT 09 Note: this call replaces the address to which RECEIVER.COM chains on an INT 09 without preserving the original value. This allows a prior handler to unlink, but does not allow a new handler to be added such that RECEIVER gets the INT 09 first. SeeAlso: AX=B808h --------V-2FBC00----------------------------- INT 2F - Windows 3.0, DOS 5+ EGA.SYS - INSTALLATION CHECK AX = BC00h Return: AL = state 00h not installed, OK to install 01h not installed, not OK to install FFh installed BX = 5456h ("TV") Range: AH=80h to AH=FFh, selected by commandline switch SeeAlso: AX=BC06h"EGA",INT 10/AH=FAh"EGA" --------s-2FBC00BX3F3F----------------------- INT 2F - MediaVision MVSOUND.SYS - INSTALLATION CHECK AX = BC00h BX = 3F3Fh ('??') CX = 0000h DX = 0000h Return: if installed, BX XOR CX XOR DX = 4D56h ('MV') Program: MVSOUND.SYS is a driver for the MediaVision ProAudio Spectrum family of sound boards; its primary programmer was Bryan Crane SeeAlso: AX=BC01h"MVSOUND",AX=BC02h,AX=BC03h,AX=BC04h,AX=BC06h"MVSOUND" --------s-2FBC01----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET VERSION AX = BC01h BX = magic value 6D20h ('m ') CX = magic value 2076h (' v') DX = magic value 2020h (' ') Return: BX = ASCII major version (leading zeros significant) CX = ASCII minor version (leading zeros significant) SeeAlso: AX=BC00h/BX=3F3Fh --------s-2FBC02----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET STATE TABLE POINTER AX = BC02h Return: BX:DX -> state table SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC03h --------s-2FBC03----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET FUNCTION TABLE POINTER AX = BC03h Return: BX:DX -> function table SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC02h --------s-2FBC04----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET DMA AND IRQ CHANNELS AX = BC04h Return: AX = 4D56h ('MV') BL = DMA channel CL = IRQ number SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC01h"MVSOUND" --------V-2FBC06----------------------------- INT 2F U - MS Windows 3.0, DOS 5+ EGA.SYS - GET VERSION INFO AX = BC06h Return: BX = 5456h ("TV") CH = major version CL = minor version DL = revision SeeAlso: AX=BC00h"EGA",INT 10/AH=FAh"EGA" --------s-2FBC06----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET STATUS STRING AX = BC06h Return: AX = 4D56h ('MV') DX:BX -> status string (first byte 0Ch if no status message to display) SeeAlso: AX=BC00h/BX=3F3Fh,AX=BC01h"MVSOUND",AX=BC0Bh"MVSOUND" --------s-2FBC0B----------------------------- INT 2F - MediaVision MVSOUND.SYS - GET EXECUTABLE PATH AX = BC0Bh Return: BX:DX -> ASCIZ path for MVPROAS.EXE, 0000h:0000h if not available SeeAlso: AX=BC00h/BX=3F3Fh --------U-2FBE00----------------------------- INT 2F - REDVIEW - INSTALLATION CHECK AX = BE00h Return: AL = FFh if installed Program: REDVIEW is a public-domain TSR by Alexandr Novy and Petr Horak which copies data sent to standard output to standard error when the former has been redirected to a file, thus allowing the data to be seen on the screen at the same time it is captured in a file --------N-2FBF00----------------------------- INT 2F - PC LAN PROGRAM REDIRIFS.EXE internal - INSTALLATION CHECK AX = BF00h Return: AL = FFh if installed --------N-2FBF01----------------------------- INT 2F U - PC LAN PROGRAM REDIRIFS.EXE internal - ??? AX = BF01h ??? Return: ??? --------N-2FBF80----------------------------- INT 2F - PC LAN PROG REDIR.SYS internal - SET REDIRIFS ENTRY POINT AX = BF80h ES:DI -> FAR entry point to IFS handler in REDIRIFS Return: AL = FFh if installed ES:DI -> internal workspace Note: all future IFS calls to REDIR.SYS are passed to the ES:DI entry point --------F-2FC0------------------------------- INT 2F - MTEZ XpressFax Hardware TSR (CLASS2) - API AH = C0h AL = function code (01h to 15h) Return: ??? SeeAlso: AX=C000h/BX=444Bh,AX=CB00h/BX=4D53h --------N-2FC000----------------------------- INT 2F - Novell ODI Link Support Layer (LSL.COM) - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed DX:BX -> FAR entry point (see #2192,#2193,#2194) ES:SI -> signature string "LINKSUP$" Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: on return, ES = DX for LSL v1.10 and v2.05; LSL makes use of this in its search for a previous installation SeeAlso: AX=5100h,AX=C000h"NESL" (Table 2192) Call LSL function "Request MLID Registration" with: BX = 0001h ES:SI -> registration??? record (see #2196) DS:DI -> buffer for LSL information block (see #2197) Return: AX = completion code (0000h,8001h) (see #2195) DS:DI buffer filled if successful BX,CX corrupted Note: see "Novell LAN Driver Developer's Guide, Volume III" for more details (Table 2193) Call LSL function "get support entry points" with: BX = 0002h ES:SI -> buffer for entry point record (see #2198) Return: ES:SI buffer filled (Table 2194) Call LSL function "Request MLID API entry point" with: BX = 0003h Return: ES:SI -> MLID (Multiple Link Interface Driver) API entry point (call with BX=function 00h-10h, not range-checked) Note: LSL v1.10 and v2.05 execute BX=0003h for BX=0000h and any BX >= 0003h (Table 2195) Values for LSL completion code: 0000h successful 8001h out of resources 8002h bad parameter 8003h no more items 8004h item not present 8005h failed 8006h receive overflow 8007h canceled 8008h bad command 8009h duplicate entry 800Ah no such handler 800Bh no such driver Format of LSL registration record: Offset Size Description (Table 2196) 00h DWORD -> ??? FAR function (to be called with ES:SI -> ??? and returning AX = completion code) 04h DWORD -> ??? 08h DWORD -> ??? data (at least 3Eh bytes) Format of LSL information block: Offset Size Description (Table 2197) 00h DWORD -> ??? entry point (called with BX=function 00h-11h) 04h WORD ??? 06h WORD ??? Note: due to a fencepost error, LSL v2.05 (distributed with Novell DOS 7) will crash if the above entry point is called with BX=0012h Format of entry point record: Offset Size Description (Table 2198) 00h DWORD pointer to protocol support entry point in LSL (see #2199) 04h DWORD pointer to general support entry point in LSL (see #2200) (Table 2199) Call protocol support entry point with: BX = function number 0000h ??? 0001h ??? 0002h ??? 0003h "ScheduleAESEvent" ES:SI -> AES ECB to be scheduled (see #2203) Return: ES,SI preserved 0004h "CancelAESEvent" ES:SI -> ECB to be cancelled (see #2203) Return: ES,SI preserved 0005h "GetIntervalMarker" Return: DX:AX = current interval marker in milliseconds all other registers preserved 0006h "RegisterStack" AX = logical board number ES:SI -> bound stack info structure (see #2213) Return: BX = assigned Stack ID if AX=0000h 0007h "DeRegisterStack" AX = protocol stack's assigned Stack ID 0008h "RegisterDefaultStack" AX = logical board number ES:SI -> stack info structure (see #2214) 0009h "DeRegisterDefaultStack" AX = logical board number 000Ah "RegisterPrescanStack" AX = logical board number ES:SI -> stack info structure (see #2214) 000Bh "DeRegisterPrescanStack" AX = logical board number 000Ch "SendPacket" ES:SI -> send ECB Return: interrupts disabled 000Dh ??? 000Eh ??? 000Fh ??? 0010h "GetStackIDFromName" ES:SI -> counted NUL-terminated protocol name (max 15 chars) Return: BX = Stack ID if AX=0000h 0011h "GetPIDFromStackIDBoard" AX = Stack ID for protocol CX = logical board number ES:SI -> 6-byte buffer for protocol ID 0012h "GetMLIDControlEntry" AX = logical board number Return: ES:SI -> MLID control handler (see #2201) if AX=0000h 0013h "GetProtocolControlEntry" AX = Stack ID or FFFEh Prescan stack CX = logical board number FFFFh default protocol CX = logical board number Return: ES:SI -> protocol stack control entry point if AX=0000h (see #2202) 0014h "GetLSLStatistics" Return: AX = 0000h (successful) ZF set ES:SI -> LSL statistics table (see #2205) 0015h "BindStack" AX = protocol stack's assigned Stack ID CX = logical board number 0016h "UnbindStack" AX = protocol stack's assigned Stack ID CX = logical board number 0017h "AddProtocolID" AX = frame type ID code ES:SI -> 6-byte protocol ID CX:DI -> counted NUL-terminated short protocol name (max 15 ch) 0018h "RelinquishControl" Return: after LSL performs any necessary background processing 0019h "GetLSLConfiguration" Return: AX = 0000h (successful) ZF set ES:SI -> LSL configuration table (see #2204) 001Ah "GetTickMarker" Return: AX = number of 55ms ticks since LSL loaded BX destroyed Return: AX = completion code (see #2195) ZF set if successful SS:SP, DS, BP preserved; most other registers may be destroyed (Table 2200) Call general support entry point with: BX = function number 0000h "Allocate Memory" (obsolete) always returns AX=8008h (BAD_COMMAND) 0001h "Free Memory" (obsolete) always returns AX=8008h (BAD_COMMAND) 0002h "Realloc Memory" (obsolete) always returns AX=8008h (BAD_COMMAND) 0003h "Memory Statistics" (obsolete) always returns AX=8008h (BAD_COMMAND) 0004h "Add Memory To Pool" (obsolete) always returns AX=8008h (BAD_COMMAND) 0005h "AddGeneralService" ES:SI -> General Service Control Block (see #2215) 0006h "RemoveGeneralService" ES:SI -> General Service Control Block (see #2215) 0007h "GetNETcfgPath" Return: AX = 0000h (successful) DS:DX -> ASCIZ pathname for NET.CFG 0008h U ??? (in LSL 1.10) Return: AX = 0000h ES:SI -> ??? (a 22-byte data area) 000Ah "GetCriticalSectionStatus" Return: BX = total outstanding calls to "StartCriticalSection" 000Bh "ServiceEvents" interrupts disabled Return: interrupts disabled 0010h "GetStackECB" DS:DI -> Lookahead structure (see #2216) interrupts disabled Return: ES:SI -> ECB if successful (AX=0000h,ZF set) interrupts disabled 8000h-FFFFh reserved for user general service providers Return: AX = completion code (see #2195) ZF set if successful SS:SP, DS, BP preserved (Table 2201) Call MLID control handler with: AX = logical board number BX = function number 0000h "GetMLIDConfiguration" Return: ES:SI -> MLID's configuration table if successful (see #2208 for format) 0001h "GetMLIDStatistics" Return: ES:SI -> MLID's statistics table if successful (see #2208 for format) 0002h "AddMulticastAddress" ES:SI -> 6-byte multicast address to add 0003h "DeleteMulticastAddress" ES:SI -> 6-byte multicast address to delete 0005h "MLIDShutdown" CX = type 0000h permanent (also deregisters from LSL) other temporary (shutdown hardware only) 0006h "MLIDReset" reinitialize board / restart from temp shutdown 0007h "Create Connection" (obsolete?) ??? 0008h "Delete Connection" (obsolete?) ??? 0009h "SetLookAheadSize" CX = requested lookahead size (00h-80h) 000Ah "PromiscuousChange" CX = what to receive promiscuously bit 0: MAC frames bit 1: non-MAC frames 000Bh "RegisterReceiveMonitor" CX = subfunction 0000h disable receive monitoring else enable receive monitoring ES:SI -> monitor receive routine ES:DI -> monitor transmit routine 000Ch "Driver Poll" (obsolete?) ??? Return: AX = completion code (see #2195) ZF set if successful Note: not all boards/MLIDs support function 0010h; see bit 13 in the MLID mode flags field of the MLID's configuration table (Table 2202) Call protocol stack control entry point with: BX = function number 0000h "GetProtocolStackConfiguration" Return: ES:SI -> protocol stack's configuration table (see #2207) 0001h "GetProtocolStackStatistics" Return: ES:SI -> protocol stack's statistics table (see #2206) 0002h "BindToMLID" CX = board number to bind to ES:SI -> implementation-dependant parameter string 0003h "UnBindFromMLID" CX = board number from which protocol should unbind ES:SI -> optional implementation-dependant parameter string 0004h "MLIDDeRegistered" CX = board number that has de-registered from LSL Return: AX = status 0000h successful else implementation-dependant error codes ZF set if successful SS:SP, DS, BP preserved Format of AES ECB: Offset Size Description (Table 2203) 00h DWORD "AESLink" pointer used by LSL for list management 04h DWORD number of milliseconds to wait 08h DWORD "AESStatus" (is set to 00000000h when AES ESR is invoked) 0Ch DWORD -> function to be invoked when time expires ES:SI will point to this structure on entry, DS, BP, and SS:SP must be preserved. SeeAlso: #2217 Format of LSL Configuration Table: Offset Size Description (Table 2204) 00h BYTE major version of configuration table 01h BYTE minor version of configuration table (decimal, 0-99) 02h 8 BYTEs reserved 0Ah BYTE LSL major version (decimal) 0Bh BYTE LSL minor version (decimal, 0-99) ---LSL 1.0x --- 0Ch 14 BYTEs reserved ---LSL 1.10+ --- 0Ch WORD maximum number of boards which LSL can handle 0Eh WORD maximum number of protocol IDs which LSL can handle 10h 12 BYTEs reserved Format of LSL Statistics Table: Offset Size Description (Table 2205) 00h BYTE major version of statistics table format 01h BYTE minor version of statistics table format (decimal, 0-99) 02h WORD "GenericCounters" number of counters in static portion of table 04h DWORD "ValidCountersMask" bit mask indicating which generic counters are actually used. Bit 31 = TotalTxPackets, bit 30 is the next field, etc. 08h DWORD "TotalTxPackets" total SendPacket requests made 0Ch DWORD reserved 10h DWORD reserved 14h DWORD "AESEventsCount" number of completed AES events 18h DWORD "PostponedEvents" number of events postponed due to critical sections inside the MLIDs 1Ch DWORD "CancelAESFailures" number of times CancelAESEvent failed 20h DWORD reserved 24h DWORD reserved 28h DWORD "TotalRxPackets" total number of GetStackECB requests 2Ch DWORD "UnclaimedPackets" total number of packets not consumed by a protocol stack 30h WORD "NumberCustom" number of custom variables that follow 32h N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter) var length-prepended and NULL terminated string for Counter 0 ... var length-prepended and NULL terminated string for Counter N-1 SeeAlso: #2206,#2212 Format of Protocol Stack Statistics Table: Offset Size Description (Table 2206) 00h BYTE statistics table major version 01h BYTE statistics table minor version (decimal, 0-99) 02h WORD number of generic counters following 04h DWORD "ValidCountersMask" (bitmask, bit 31 is TotalTxPackets) 08h DWORD TotalTxPackets 0Ch DWORD TotalRxPackets 10h DWORD IgnoredRxPackets 14h WORD number of custom counters 16h N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter) var length-prepended and NULL terminated string for Counter 0 ... var length-prepended and NULL terminated string for Counter N-1 SeeAlso: #2205,#2212 Format of Protocol Stack Configuration Table: Offset Size Description (Table 2207) 00h BYTE configuration table major version 01h BYTE configuration table minor version (decimal, 0-99) 02h DWORD -> counted NUL-terminated long descriptive name for protocol 06h DWORD -> counted NUL-terminated short name for protocol (15 chars) 0Ah BYTE protocol stack major version 0Bh BYTE protocol stack minor version (decimal, 0-99) 0Ch 16 BYTEs reserved for future use Format of MLID Configuration Table: Offset Size Description (Table 2208) 00h 26 BYTEs signature 'HardwareDriverMLID ' (8 spaces on end) 1Ah BYTE configuration table major version 1Bh BYTE configuration table minor version (decimal, 0-99) 1Ch 6 BYTEs node address 22h WORD MLID mode flags (see #2209) 24h WORD board number 26h WORD board instance (if more than one of same board installed) 28h WORD maximum packet size 2Ah WORD BestDataSize 2Ch WORD WorstDataSize 2Eh DWORD -> counted NUL-terminated long name for NIC 32h DWORD -> counted NUL-terminated short name for NIC (8 chars max) 36h DWORD -> counted NUL-terminated Frame and Media type 3Ah WORD reserved (0000h) 3Ch WORD frame type ID 3Eh WORD TransportTime (milliseconds) 40h DWORD -> SourceRouteHandler for TokenRing. (Used by ROUTE.COM) 44h WORD lookahead size 46h WORD line speed (Mbps if high bit clear, else Kbps) 48h WORD QueueDepth 4Ah 6 BYTEs reserved (0) 50h BYTE driver major version 51h BYTE driver minor version (decimal, 0-99) 52h WORD bus/multicast flags (see #2210) 54h WORD send retries 56h DWORD ConfigTableLink 5Ah WORD MLID sharing flags (see #2211) 5Ch WORD slot number 5Eh WORD I/O address 1 60h WORD I/O range 1 62h WORD I/O address 2 64h WORD I/O range 2 66h DWORD memory address 1 6Ah WORD memory size 1 6Ch DWORD memory address 2 70h WORD memory size 2 72h BYTE interrupt line 1 73h BYTE interrupt line 2 74h BYTE DMA line 1 75h BYTE DMA line 2 Bitfields for MLID mode flags: Bit(s) Description (Table 2209) 15 MLID supports Octet Reversal 14 node address is non-canonical 13 promiscuous mode is supported 12-8 reserved 7 LDataSize field in LookAhead structure supported 6 raw send supported 5 MLID needs to be polled by LSL 4 reserved (0) 3 multicasting is supported 2 not currently used by DOS ODI, set to 0. 1 network card uses DMA. 0 RealDriverBit, always set to 1. Bitfields for bus/multicast flags: Bit(s) Description (Table 2210) 10-9 specialized multicast support 00 = Group addressing is default for medium 01 = Invalid 10 = Filter group address in MLID. 11 = Adapter filters group address. 2 supports Micro Channel cards 1 supports ISA cards 0 supports EISA cards Bitfields for MLID sharing flags: Bit(s) Description (Table 2211) 8 NIC can share DMA2 7 NIC can share DMA1 6 NIC can share IRQ2 5 NIC can share IRQ1 4 NIC can share Memory2 3 NIC can share Memory1 2 NIC can share IO2 1 NIC can share IO1 0 MLID is currently shut down Format of MLID Statistics Table: Offset Size Description (Table 2212) 00h BYTE driver statistics table major version 01h BYTE driver statistics table minor version (decimal, 0-99) 02h WORD number of generic counters (typically 13) 04h DWORD "ValidCountersMask" (bit mask, bit 31 is TotalTxCount) 08h DWORD TotalTxCount 0Ch DWORD TotalRxCount 10h DWORD NoECBAvailableCount 14h DWORD TxTooBigCount 18h DWORD TxTooSmallCount 1Ch DWORD RxOverflowCount 20h DWORD RxTooBigCount 24h DWORD RxTooSmallCount 28h DWORD TxMiscCount 2Ch DWORD RxMiscCount 30h DWORD TxRetryCount 34h DWORD RxChecksumErrorCount 38h DWORD RxMismatchCount 3Ch WORD number of custom counters 3Eh N DWORDs custom counters N DWORDs -> CustomCounterStrN (one per custom counter) var length-prepended and NULL terminated string for Counter 0 ... var length-prepended and NULL terminated string for Counter N-1 SeeAlso: #2205,#2206 Format of bound stack info structure: Offset Size Description (Table 2213) 00h DWORD -> protocol stack's short name (counted, NUL-terminated) 04h DWORD -> receive handler 08h DWORD -> control handler Format of stack info structure: Offset Size Description (Table 2214) 00h DWORD -> receive handler 04h DWORD -> control handler Format of General Service Control Block: Offset Size Description (Table 2215) 00h DWORD -> next GSCB (maintained internally by LSL) 04h DWORD -> entry point for general service handler 08h WORD command code for this general service (8000h-FFFFh) Note: the control block must not be altered or deallocated until the general service is removed Format of Lookahead structure: Offset Size Description (Table 2216) 00h DWORD -> Media header 04h DWORD -> lookahead buffer 08h WORD length of lookahead buffer 0Ah 6 BYTEs protocol ID 10h WORD logical board number 12h WORD lookahead size Format of ODI ECB: Offset Size Description (Table 2217) 00h DWORD link to next ECB 04h DWORD link to previous ECB 08h WORD general status 0000h received successfully 8006h packet overflow 8007h reception aborted (data not valid) 0Ah DWORD -> event service routine or RETF (never 0000h:0000h)(see #2218) 0Eh WORD protocol stack identifier 10h 6 BYTEs protocol ID (sending only) 16h WORD MLID board number (sending only) 18h 6 BYTEs MAC destination address 1Eh 4 BYTEs driver workspace 22h 4 BYTEs protocol workspace 26h WORD total length of sent buffer 28h WORD fragment count 2Ah 2 WORDs segment,offset of first fragment buffer 2Eh WORD length of first fragment buffer ... SeeAlso: #2203 (Table 2218) Values event service routine is called with: ES:SI -> associated ODI ECB (see #2217) interrupts disabled Return: DS,BP,SS,SP preserved interrupt disabled Notes: the service routine may invoke any IPX/ODI function except CloseSocket it is safe to send a packet and wait for completion if enough stack space is available --------N-2FC000----------------------------- INT 2F - Novell NetWare Event Service Layer (NESL) 1.0 - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed DX:BX -> FAR entry point (see #2219,#2220,#2221,#2222,#2223,#2224) ES:SI -> signature string "NESL_EVENTS" Program: NESL is a generic interface for event handling in ODI drivers and other NetWare-oriented modules. Primarily intended to support power management and "hot swapping" of PCMCIA cards, but it is not limited to this. Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"Link Support Layer",AX=C000h"NETWARN" (Table 2219) Call NESL function GetNESLConfigPointer with: BX = 0000h Return: AX = completion code (0000h,8008h) (see #2225) ES:SI -> NESL configuration table if successful (see #2226) BP,DS,STACK preserved Desc: Obtain a pointer to the NESL Configuration Table SeeAlso: #2220,#2223 (Table 2220) Call NESL function RegisterEventProducer with: BX = 0001h ES:SI -> Producer Event Control Block (PECB) (see #2227) Return: AX = completion code (0000h, 8005h, 8008h) (see #2225) ES:SI -> still points to PECB BP,DS,STACK preserved Desc: Allows a module to register as a producer of a given event class Note: PECB_ClassName and PECB_Flags must be filled in on entry SeeAlso: #2093,#2221,#2222,#2223 (Table 2221) Call NESL function DeRegisterEventProducer with: BX = 0002h ES:SI -> PECB previously passed to RegisterEventProducer (see #2227) Return: AX = completion code (0000h, 8002h, 8008h) (see #2225) ES:SI -> still points to PECB BP,DS,STACK preserved Desc: Allows a module to de-register as a producer of a given event class SeeAlso: #2220,#2224 (Table 2222) Call NESL function EventNotification with: BX = 0003h ES:SI -> PECB previously registered (see #2227) Return: AX = completion code (0h, 8005h, 8008h) (see #2225) ES:SI -> still points to PECB BP,DS,STACK preserved Desc: Allows a module to signal that an event has just occurred in a given event class. Notes: Once called, NESL will generate corresponding callouts for this event, as described in Table #2229. on entry, the PECB_DataPtr must point at an Event Parameter Block (EPB) (see #2230) filled in to match the desired event SeeAlso: #2220 (Table 2223) Call NESL function RegisterEventConsumer with: BX = 0004h ES:SI -> Consumer Event Control Block (CECB) (see #2228) Return: AX = completion code (0h, 8005h, 8008h) (see #2225) ES:SI -> still points to CECB BP,DS,STACK preserved Desc: Allows a module to register as a consumer of a given event class Note: on entry, the CECB_ClassName, CECB_NotifProc and CECB_OSILevel must be filled in. SeeAlso: #2220,#2224 (Table 2224) Call NESL function DeRegisterEventConsumer with: BX = 0005h ES:SI -> CECB previously passed to RegisterEventConsumer (see #2228) Return: AX = completion code (0h, 8002h, 8008h) (see #2225) ES:SI -> still points to CECB BP,DS,STACK preserved Desc: Allows a module to de-register as a consumer of a given event class SeeAlso: #2221,#2223 (Table 2225) Values for NESL Error code: 0000h Successful 8002h Bad Parameter 8005h Fail 8008h Bad Command Format of NESL Configuration Table: Offset Size Description (Table 2226) 00h WORD NESL_Cfg_MajVer Major Version of this table (=1) 02h WORD NESL_Cfg_MinVer Minor Version of this table (=0) 04h DWORD NESL_Cfg_ModLName -> ASCIZ long name of NESL module (typically -> "NetWare Event Service Layer for 16-Bit DOS") 08h DWORD NESL_Cfg_ModSName -> ASCIZ short name of NESL module (typically -> "NESL") 0Ch WORD NESL_Cfg_ModMajVer Major Version of NESL itself (=1) 0Eh WORD NESL_Cfg_ModMinVer Minor Version of NESL itself (=0) Format of NESL Producer Event Control Block (PECB): Offset Size Description (Table 2227) 00h WORD PECB_MajVer Major Version of this structure (=1) 02h WORD PECB_MinVer Minor Version of this structure (=0) 04h DWORD PECB_NextProducer -> next PECB. NULL if last. 08h DWORD PECB_ClassName -> ASCIZ string identifying event class (see #2231) 0Ch DWORD PECB_ConsumerList -> list of consumers for this event class 10h DWORD PECB_DataPtr -> points to additional data during events 14h DWORD PECB_Flags Bit 0 =0 consumers should be called "top down" for this event class. (OSI level 7 down to OSI level 1) =1 consumers should be called "bottom up" Bits 1-31 Reserved =0 18h 8 BYTEs PECB_Reserved (all zeros) Note: Although the event producer provides the memory for the PECB, the NESL module controls this memory until the event class is de-registered. While owned by NESL, this structure should be treated as read-only, except for the PECB_DataPtr field. Format of NESL Consumer Event Control Block (CECB): Offset Size Description (Table 2228) 00h WORD CECB_MajVer Major Version of this structure (=1) 02h WORD CECB_MinVer Minor Version of this structure (=0) 04h DWORD CECB_NextConsumer -> next CECB. NULL if last. 08h DWORD CECB_ClassName -> ASCIZ string identifying event class (see #2231) 0Ch DWORD CECB_NotifProc -> FAR CALL event handler (see #2229) 10h WORD CECB_OSILevel Bits 4-7 = OSI Layer of this module (1 through 7) Bits 0-3 = relative ordering with other modules on same layer 13h 14 BYTEs CECB_Reserved (all zeros) Note: Although the event consumer provides the memory for the CECB, the NESL module controls this memory until the consumer is de-registered. While owned by NESL, this structure should be treated as read-only, (Table 2229) Values NESL Consumer Notification Procedure is called with: ES:SI -> Event Parameter Block (EPB) (see #2230) Return: AX = completion code (0000h, 8005h) (see #2225) ES:SI -> still points to EPB Desc: Called by NESL to notify the consumer when an event has occurred in an event class for which it has registered. SeeAlso: #2228 Format of NESL Event Parameter Block (EPB): Offset Size Description (Table 2230) 00h WORD EPB_MajVer Major Version of this structure (=1) 02h WORD EPB_MinVer Minor Version of this structure (=0) 04h DWORD EPB_ClassName -> ASCIZ string identifying event class (see #2231) 08h DWORD EPB_EventName -> ASCIZ string identifying event within class (see #2232) 0Ch DWORD EPB_ModuleName -> ASCIZ string identifying module producing event 10h DWORD EPB_DataPtr0 -> event-defined data or NULL if not used 14h DWORD EPB_DataPtr1 -> event-defined data or NULL if not used 18h 8 BYTEs EPB_Reserved (all zeros) (Table 2231) Values for NESL Event Class Names: Event Class Description ------------------- ----------------------------------------- Service Suspend Suspension of a service. Called top-down. Service Resume Resumption/availability of a service. Called bottom-up. Service/Status Change Change in status or level of service. Called top-down. Suspend Request Request to suspend a service. Called bottom-up. Note: Contact Novell Labs to register new event classes. (Table 2232) Values for NESL Event Names: Event Name Class Description -------------------------- ------------- --------------------------- MLID Cable Disconnect Service Suspend Cable disconnected from NIC MLID Card Removal Service Suspend PCMCIA card removed MLID Hardware Failure Service Suspend Serious hardware failure in NIC MLID Not In Range Service Suspend Wireless access point is out of range MLID Shutdown Service Suspend MLID was shut down MLID Media Access Denied Service Suspend Access to physical medium unsuccessful MLID Cable Reconnect Service Resume Cable re-connected to NIC MLID Card Insertion Complete Service Resume PCMCIA card inserted MLID In Range Service Resume Wireless access point in range MLID Reset Service Resume MLID was just reset MLID Access Point Change Serv/Status Change Station has moved to new access point MLID Speed Change Serv/Status Change Change in communic. speed Note: Contact Novell Labs to register new event names. For all predefined events above, EPB_DataPtr0 (see #2230) points to the MLID Configuration table (see AX=C000h"ODI") for the affected MLID. --------N-2FC000----------------------------- INT 2F - Novell NetWare Connect NETWARN - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed SI = segment of resident portion Program: NETWARN is a utility supplied with NetWare Connect to warn a remote dialup user when programs are about to be loaded slowly over the modem link. Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: on return, verify that it is NETWARN responding by examining signature at in NETWARN's data table in the resident segment (see #2233) SeeAlso: AX=C000h"ODI",AX=C000h"NESL" Format of NETWARN Configuration structure: Offset Size Description (Table 2233) 103h 7 BYTEs signature string "NETWARN" 10Ah BYTE major version in ASCII (="1") 10Bh BYTE minor version in ASCII (="0") 10Ch DWORD minimum size of EXE cared about in bytes (/S=xxxx) 110h WORD same value in kilobytes (see 0113h, bit 4 below) 112h BYTE multiplex code (AH value) actually being used 113h WORD options (see #2234) 115h DWORD INT 21h vector before NETWARN loaded 119h DWORD INT 2Fh vector before NETWARN loaded 11Dh 16 BYTEs ASCIIZ local name of last device which was checked 12Dh 128 BYTEs ASCIIZ remote name of last device which was checked Note: the specified offsets are from the start of the resident segment Bitfields for NETWARN options: Bit(s) Description (Table 2234) 0 ??? (=0) 1 /U (Unload) selected (never in resident) 2 /E (Enabled) Will trap & check EXEC's 3 /D (Disabled) No EXEC checking done 4 /S (Size) was set (see 010Ch, 0110h above) 5 /P (Path shown) 6 /H or /? (Help) (never in resident) SeeAlso: #2233 --------f-2FC000----------------------------- INT 2F - FN32 32 character filename utilities - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed ES:DI -> signature string "FN32 32CHAR TSR" Program: FN32 is a TSR which supports 32 character filenames under PC/MS-DOS Note: the TSR intercepts INT 21 calls and performs filename substitution by managing dictionary files in each directory which contains long filenames --------M-2FC000----------------------------- INT 2F - QMR - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed ES:DI -> signature string "QMR1!" Program: QMR (Cove Software, Quick Mouse Reset) monitors the mouse service interrupt (int 33h) and substitutes a fast software reset (mouse fn 21h) for the slow hardware reset (mouse fn 0). Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C001h"QMR",AX=C002h"QMR",AX=C003h"QMR" --------V-2FC000----------------------------- INT 2F - VGAsave v1.93 - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed BX = segment of resident code Program: VGAsave is a freeware VGA-specific, mouse-aware screenblanker by Bill Javurek Range: AH=C0h to AH=FFh, selected by scanning for a free multiplex number Note: the transient portion of VGAsave compares the first 38 bytes of the resident code (addressed through BX) against its own copy of the resident code to complete the installation check SeeAlso: INT 14/AX=AA01h,INT 2F/AH=93h Index: screen saver;VGAsave --------V-2FC000----------------------------- INT 2F - AD-DOS - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed BX = 4144h ('AD') CX = 2D44h ('-D') DX = 4F53h ('OS') Program: AD-DOS is the DOS version of the After Dark screen blanker for MS Windows Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C001h,AX=C003h,AX=C005h,AX=C007h,AX=C009h,AX=C020h,INT 14/AX=AA01h Index: screen saver;AD-DOS --------U-2FC000----------------------------- INT 2F U - WANG_ER.COM - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed ES = segment of resident code Program: WANG_ER is a TSR from Compaq which permits Compaq systems equipped with 3-mode floppy drives to read Wang document diskettes Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: The installation check is completed by comparing the resident code with the copy in the transient program --------i-2FC000----------------------------- INT 2F O - ASPIHOOK.SYS - INSTALLATION CHECK AX = C000h Return: AL = FFh if multiplex number in use ES:DI -> ASCIZ signature "ASPIHOOK" if ASPIHOOK.SYS installed Program: ASPIHOOK is a device driver for monitoring SCSI activity through an ASPI host manager; it is part of the Personal Measure system activity monitor from Spirit of Performance, Inc. Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"PMEASURE" --------i-2FC000----------------------------- INT 2F - PMEASURE.EXE - INSTALLATION CHECK AX = C000h Return: AL = FFh if multiplex number in use ES:DI -> ASCIZ signature "PMEASURE.EXE" if PMEASURE.EXE installed Program: PMEASURE.EXE is a TSR for monitoring system hardware activity which is part of the Personal Measure system activity monitor from Spirit of Performance, Inc. Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: If a Personal Measure Hook Module, such as ASPIHOOK.SYS, is already installed, PMEASURE.EXE uses the next highest free multiplex number. SeeAlso: AX=C000h"ASPIHOOK",AX=C000h"PERSONAL MEASURE" --------i-2FC000----------------------------- INT 2F - PERSONAL MEASURE - HOOK MODULE INSTALLATION CHECK AX = C000h Return: AL = FFh if installed ES:DI -> signature string "PMEASUREHOOK" AX = C000 if not installed, per mux id conventions DH = major release number (binary) DL = minor release number (binary) Program: The Personal Measure system activity monitor from Spirit of Performance, Inc. uses an extensible series of modules to hook into various operating system interfaces and monitor system calls. Current hook modules are ASPIHOOK.SYS for ASPI device activity and CDRHOOK.SYS for non-ASPI CD-ROM activity. All hook modules share the same mux id. Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"PMEASURE.EXE",AX=C001h"PERSONAL MEASURE" --------c-2FC000----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed SI = signature value 20D6h DI = signature value 8761h ES:BX -> configuration table (see #2235) CX = ??? (0300h) DX = ??? (0020h) Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=0100h/SI=20D6h,AX=C001h"PCACHE" Format of PrintCache configuration table: Offset Size Description (Table 2235) 00h 26 BYTEs ASCIZ signature string "TORQ Configuration Table: " 1Ah 2 BYTEs ??? 1Ch DWORD -> data table (see #2236) 20h 4 BYTEs ASCIZ version string ("3.1" for v3.1) 24h 5 BYTEs ??? 29h 12 BYTEs ASCIZ version date string ("Aug 31 1993" for v3.1) 35h WORD buffered port type (01h = LPT, 02h = COM) 37h WORD buffered port BIOS port number 39h 5 BYTEs ASCIZ buffered port name ("LPTn" or "COMn") 3Eh WORD physical port type (01h = LPT, 02h = COM) 40h WORD physical port BIOS port number 42h 5 BYTEs ASCIZ physical port name ("LPTn" or "COMn") 47h BYTE port driver IRQ 48h 21 BYTEs ??? 5Dh WORD buffer size in K 5Fh 27 BYTEs ??? 7Ah BYTE popup hotkey shift states (see #0477 at INT 16/AH=02h) 7Bh BYTE popup hotkey scan code (see #0005 at INT 09h"IRQ1") 7Ch 4 BYTEs ??? 80h 20 BYTEs ASCIZ printer type name ??? Format of PrintCache data table: Offset Size Description (Table 2236) 00h 2 BYTEs ??? 02h DWORD -> ??? entry point ??? --------U-2FC000----------------------------- INT 2F - Frank Kintrup TSR Utilities - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed BX = program ID (see #2237) CX = 464Bh (signature "FK") DX = revision number (DH = major, DL = minor) ES = resident segment of TSR Range: AH=C0h to AH=FFh, selected by searching for a free multiplex number SeeAlso: AX=C001h"Kintrup",AX=C002h"Kintrup" (Table 2237) Values for Frank Kintrup TSR program ID: 4153h "AS" ASCII.COM ASCII table with paste function 434Ch "CL" CLOCK.COM clock with date/time display and alarm 5043h "PC" PCALC.COM programmer's calculator with paste function 5343h "SC" SCRSAVE.COM screen saver with mouse support and hotkey 5544h "UD" UNDEL.COM undelete program like SMARTCAN or DPROTECT --------K-2FC000----------------------------- INT 2F U - HP 100LX/200LX - PUSHKEYS - INSTALLATION CHECK AX = C000h Return: AL = FFh if possibly installed Range: AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh SeeAlso: AX=C001h"HP 100LX",AX=C0AEh"HP 100LX",AX=C0AFh"HP 100LX" --------V-2FC000----------------------------- INT 2F - DIMWIT - INSTALLATION CHECK AX = C000h Return: AL = FFh if installed ES:DI -> signature string "DIMDOS" or "DIMWIN" Program: DIMWIT is a freeware Windows-aware screen blanker by Larry Board Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"AD-DOS",AX=C001h"DIMWIT" Index: screen saver;DIMWIT --------F-2FC000BX444B----------------------- INT 2F - MTEZ XpressFax Hardware TSR (CLASS2) - INSTALLATION CHECK AX = C000h BX = 444Bh ('DK') CX = 4A4Eh ('AN') Return: AL = status 00h not installed, OK to install FFh installed BX = 646Bh ('dk') CX = 6A6Eh ('an') Range: AH=C0h to AH=FFh, selected automatically SeeAlso: AH=C0h"MTEZ" --------V-2FC000----------------------------- INT 2F U - TSENGP.COM - INSTALLATION CHECK AX = C000h Return: AL = status 00h not installed, OK to install FFh installed DS = segment of resident code Program: TSENGP.COM is a TSR supplied by Compaq to fix an incompatibility between some applications and Tseng ET4000-based video adapters Range: AH=C0h to AH=FFh, selected automatically Note: the installation check is completed by comparing the first eleven bytes at DS:005Fh against the TSR's code (80h FCh 06h 74h 0Ah 80h FCh 07h 74h 05h EAh) --------N-2FC000----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - INSTALLATION CHECK AX = C000h Return: AL = FFh if one of the components is installed CX:BX -> signature within LLRA component: "TSI_LapLinkCore" for LLRA1.EXE "TSI_Blackbird" for LLRA2.EXE "TSI_Redirector" for LLRA3.EXE "TSI_Compression" for LLRA4.EXE DL = major version number DH = minor version number Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: LapLink components are installed in the order listed above, but not necessarily all four; each gets its own multiplex number (default C0h-C3h) SeeAlso: AX=C002h"LapLink",AX=C205h"LapLink",AX=C2F0h"LapLink" SeeAlso: AX=C2F1h"LapLink",AX=C301h"LapLink",AX=C3F0h"LapLink" SeeAlso: AX=C3F1h"LapLink" --------M-2FC001----------------------------- INT 2F - QMR - REQUEST HARDWARE RESET AX = C001h Return: ES = QMR code segment AL destroyed Desc: this function is used to force a full mouse reset when QMR is installed SeeAlso: AX=C000h"QMR",AX=C002h"QMR" --------V-2FC001----------------------------- INT 2F - DIMWIT - GET CONFIGURATION DATA AX = C001h Return: ES:DI -> TSR configuration data (see #2238) Program: DIMWIT is a freeware Windows-aware screen blanker by Larry Board Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"DIMWIT",AX=C001h"AD-DOS" Index: screen saver;DIMWIT Format of DIMWIT TSR configuration data: Offset Size Description (Table 2238) 00h WORD blanking delay in clock ticks 02h BYTE instant-blanking hotkey scan code (see #0005) Ctrl and Alt must also be pressed --------V-2FC001ES0000----------------------- INT 2F - AD-DOS - GET RESIDENT CODE SEGMENT AX = C001h ES = 0000h Return: AL = 00h if successful ES = AD-DOS TSR Code Segment SeeAlso: AX=C000h"AD-DOS",AX=C001h"DIMWIT" Index: screen saver;AD-DOS --------c-2FC001----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ENTRY POINTS AX = C001h Return: AL = FFh if installed ES:BX -> ??? ES:DX -> ??? ES:SI -> ??? ES:DI -> ??? (equivalent to AX=C002h) SeeAlso: AX=C000h"PCACHE",AX=C002h"PCACHE" --------U-2FC001----------------------------- INT 2F - Frank Kintrup TSR Utilities - CLOCK - DISABLE DISPLAY UPDATE AX = C001h Range: AH=C0h to AH=FFh, selected by searching for a free multiplex number SeeAlso: AX=C000h"Kintrup",AX=C002h"Kintrup" --------K-2FC001CX03FB----------------------- INT 2F U - HP 100LX/200LX - PUSHKEYS - INTERNAL - UNINSTALL AX = C001h CX = 03FBh return address to continue uninstall if possible Return: program uninstalled Range: AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh SeeAlso: AX=C000h"HP 100LX",AX=C0AEh"HP 100LX",AX=C0AFh"HP 100LX" --------i-2FC001----------------------------- INT 2F - PERSONAL MEASURE - PASS PARAMETERS TO HOOK MODULE(S) AX = C001h DX = segment of PMEASURE.EXE or 0000h BX = offset in PMEASURE.EXE or 0000h CX = offset in PMEASURE.EXE or 0000h Return: None Program: PMEASURE.EXE is a TSR for monitoring system hardware activity which is part of the Personal Measure system activity monitor from Spirit of Performance, Inc. PMEASURE uses this call to inform its hook modules whether or not it is running and to pass information about shared data and procedures. Warning: This information documents a function that is private to Personal Measure and is provided as information only. It should NOT be called by any software other than Personal Measure. SeeAlso: AX=C000h"PERSONAL MEASURE HOOK MODULE" --------V-2FC002----------------------------- INT 2F - AD-DOS - CHECK FOR NEW INPUT AX = C002h Return: AL = 00h if successful BX = status 0000h no input since last check 0001h new input available Note: this call also resets the new-input flag SeeAlso: AX=C000h"AD-DOS",AX=C004h Index: screen saver;AD-DOS --------M-2FC002----------------------------- INT 2F - QMR - DISABLE QMR AX = C002h Return: ES = QMR code segment AL destroyed Desc: this call temporarily disables QMR SeeAlso: AX=C000h"QMR",AX=C003h"QMR" --------c-2FC002----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET BUFFER SIZE AX = C002h Return: AX = ??? in K BX = size of print buffer in K Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output SeeAlso: AX=C000h"PCACHE" --------U-2FC002----------------------------- INT 2F - Frank Kintrup TSR Utilities - CLOCK - ENABLE DISPLAY UPDATE AX = C002h Range: AH=C0h to AH=FFh, selected by searching for a free multiplex number SeeAlso: AX=C000h"Kintrup",AX=C002h"Kintrup" --------N-2FC002----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Core - ??? AX = C002h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C2F0h"LapLink" SeeAlso: AX=C2F1h"LapLink",AX=C301h"LapLink" --------V-2FC003----------------------------- INT 2F - AD-DOS - SET MINUTES TO WAIT AX = C003h BX = minutes to wait before blanking screen Return: AL = 00h if successful Program: AD-DOS is the DOS version of the After Dark screen blanker for MS Windows Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: this call also resets the delay timer SeeAlso: AX=C000h"AD-DOS",AX=C004h Index: screen saver;AD-DOS --------M-2FC003----------------------------- INT 2F - QMR - ENABLE QMR AX = C003h Return: ES = QMR code segment AL destroyed Desc: this call enables QMR after it has been disabled SeeAlso: AX=C000h"QMR",AX=C002h"QMR" --------c-2FC003----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG AX = C003h Return: BX destroyed SeeAlso: AX=C004h"PCACHE" --------V-2FC004----------------------------- INT 2F - AD-DOS - GET MINUTES TO WAIT AX = C004h Return: AL = 00h if successful BX = minutes to wait before blanking screen SeeAlso: AX=C000h"AD-DOS",AX=C003h"AD-DOS" Index: screen saver;AD-DOS --------c-2FC004----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG AX = C004h Return: BX destroyed SeeAlso: AX=C003h"PCACHE" --------V-2FC005----------------------------- INT 2F - AD-DOS - SET BLANKER STATUS AX = C005h BX = new state (0000h inactive, 0001h active) (default 0001h) Return: AL = 00h if successful SeeAlso: AX=C006h"AD-DOS" Index: screen saver;AD-DOS --------c-2FC005----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C005h ??? Return: BX destroyed ??? Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=C000h"PCACHE" --------V-2FC006----------------------------- INT 2F - AD-DOS - GET BLANKER STATUS AX = C006h Return: AL = 00h if successful BX = current state of screen blanker (0000h inactive, 0001h active) Program: AD-DOS is the DOS version of the After Dark screen blanker for MS Windows Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"AD-DOS",AX=C005h"AD-DOS" Index: screen saver;AD-DOS --------c-2FC006----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C006h ??? Return: BX destroyed ??? Note: this function appears to be identical to AX=C007h SeeAlso: AX=C000h"PCACHE",AX=C007h"PCACHE" --------V-2FC007----------------------------- INT 2F - AD-DOS - SET HOT KEY AX = C007h BX = hot key CL = hot key shift status Return: AL = 00h if successful SeeAlso: AX=C008h"AD-DOS" Index: screen saver;AD-DOS --------c-2FC007----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C007h ??? Return: BX destroyed ??? Note: this function appears to be identical to AX=C006h SeeAlso: AX=C000h"PCACHE",AX=C006h"PCACHE" --------V-2FC008----------------------------- INT 2F - AD-DOS - GET CURRENT HOT KEY AX = C008h Return: AX = status 0000h successful BX = Hot Key CL = Hot Key Shift Status 0008h otherwise SeeAlso: AX=C000h"AD-DOS",AX=C007h"AD-DOS" Index: screen saver;AD-DOS --------c-2FC008----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG AX = C008h Return: BX destroyed SeeAlso: AX=C000h"PCACHE",AX=C009h"PCACHE" --------V-2FC009----------------------------- INT 2F - AD-DOS - UNBLANK MONITOR AX = C009h Return: AL = 00h if successful Program: AD-DOS is the DOS version of the After Dark screen blanker for MS Windows Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: this function works by simulating keyboard activity Index: screen saver;AD-DOS --------c-2FC009----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG AX = C009h Return: BX destroyed Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=C000h"PCACHE",AX=C008h"PCACHE" --------V-2FC00A----------------------------- INT 2F - AD-DOS - ??? AX = C00Ah Return: AX = status 0000h successful BH = ?? BL = ?? 000Ah failed Index: screen saver;AD-DOS --------c-2FC00A----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C00Ah ??? Return: AH = bit flags bit 5: ??? AL = bit flags bit 4: ??? bit 3: ??? BX destroyed ??? SeeAlso: AX=C000h"PCACHE" --------V-2FC00B----------------------------- INT 2F - AD-DOS - ??? AX = C00Bh Return: AX = status 0000h successful 000Bh failed Index: screen saver;AD-DOS --------c-2FC00B----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - NOP AX = C00Bh Return: BX destroyed SeeAlso: AX=C000h"PCACHE" --------V-2FC00C----------------------------- INT 2F - AD-DOS - SET ??? INTERNAL FLAG TO 01h AX = C00Ch Return: AX = status 0000h successful 000Ch failed Program: AD-DOS is the DOS version of the After Dark screen blanker for MS Windows Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Index: screen saver;AD-DOS --------c-2FC00C----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ??? AX = C00Ch Return: AX = ??? (0000h) BX = ??? (0000h) CX = ??? (0100h) DL = ??? DH = ??? SeeAlso: AX=C000h"PCACHE" --------c-2FC00D----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? AX = C00Dh DL = ??? Return: BX destroyed Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=C000h"PCACHE" --------V-2FC00E----------------------------- INT 2F - AD-DOS - SET PASSWORD STATUS AX = C00Eh BX = new state (0000h disabled, 0001h enabled) Return: ??? SeeAlso: AX=C000h"AD-DOS",AX=C00Fh"AD-DOS" Index: screen saver;AD-DOS --------c-2FC00E----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - INSTALL ??? AX = C00Eh ES:DX -> ??? Return: BX destroyed Note: ES:DX is stored internally if the variable is currently 0000h:0000h, but ignored if already set; a counter is incremented SeeAlso: AX=C000h"PCACHE",AX=C00Fh"PCACHE" --------V-2FC00F----------------------------- INT 2F - AD-DOS - GET PASSWORD STATUS AX = C00Fh Return: BX = current state (0000h disabled, 0001h enabled) SeeAlso: AX=C00Eh"AD-DOS" Index: screen saver;AD-DOS --------c-2FC00F----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - REMOVE ??? AX = C00Fh Return: BX destroyed Note: this function decrements the counter used by AX=C00Eh, and clears the internal pointer variable to 0000h:0000h when it reaches zero SeeAlso: AX=C000h"PCACHE",AX=C00Eh"PCACHE" --------c-2FC010----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ??? AX = C010h CX = index of ??? table (00h-02h, others treated as 00h) SI = offset into data table Return: AL = byte at specified offset into table BX destroyed SeeAlso: AX=C000h"PCACHE" --------c-2FC011----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ??? AX = C011h Return: AX = ??? (0007h) BX = ??? (0001h) CH = ??? CL = ??? SeeAlso: AX=C000h"PCACHE" --------c-2FC012----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - GET ??? AX = C012h Return: AX = ??? BX = ??? CX = ??? DX = ??? SeeAlso: AX=C000h"PCACHE" --------c-2FC013----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C013h ??? Return: BX destroyed ??? Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=C000h"PCACHE" --------c-2FC014----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C014h ??? Return: BX destroyed ??? SeeAlso: AX=C000h"PCACHE" --------c-2FC015----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C015h ??? Return: BX destroyed ??? SeeAlso: AX=C000h"PCACHE" --------c-2FC016----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - INCREMENT ??? AX = C016h Return: BX destroyed SeeAlso: AX=C000h"PCACHE",AX=C017h"PCACHE" --------c-2FC017----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - DECREMENT ??? AX = C017h Return: BX destroyed SeeAlso: AX=C000h"PCACHE",AX=C016h"PCACH" --------c-2FC018----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C018h ??? Return: BX destroyed ??? Note: the first instruction of this function is an indirect jump which points at a RET by default SeeAlso: AX=C000h"PCACHE",AX=C019h"PCACHE" --------c-2FC019----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C019h ??? Return: BX destroyed ??? Note: the first instruction of this function is an indirect jump which points at a RET by default SeeAlso: AX=C000h"PCACHE",AX=C018h"PCACHE" --------c-2FC01A----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - CLEAR ??? FLAG AX = C01Ah Return: BX destroyed SeeAlso: AX=C000h"PCACHE",AX=C01Bh"PCACHE" --------c-2FC01B----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - SET ??? FLAG AX = C01Bh Return: BX destroyed SeeAlso: AX=C000h"PCACHE",AX=C01Ah"PCACHE" --------c-2FC01C----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - ??? AX = C01Ch ??? Return: AX = ??? BX destroyed SeeAlso: AX=C000h"PCACHE" --------c-2FC01D----------------------------- INT 2F U - PrintCache v3.1 PCACHE.EXE - NOP AX = C01Dh to C01Fh Return: BX destroyed Program: PCACHE is the resident print spooler portion of PrintCache by LaserTools; it may use either memory or disk space to spool output Range: AH=C0h to AH=FFh, selected by commandline switch SeeAlso: AX=C000h"PCACHE" --------V-2FC020----------------------------- INT 2F - AD-DOS - GET AND RESET VxD API STATUS AX = C020h Return: AL = 00h if successful BX = VxD API Status 0000h no error 0001h error 0100h neither Windows 3.X enhanced mode nor Windows/386 2.x is running 0200h VM API entry point not found (VxD not installed) Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number Note: this call resets the VxD API Status to zero SeeAlso: AX=1602h,AX=1607h Index: screen saver;AD-DOS --------V-2FC04E----------------------------- INT 2F - Explosiv v2.00+ - NON-TSR EXECUTING CHECK AX = C04Eh Return: AL = 4Fh if Explosiv is running but not memory-resident Program: Explosiv is a shareware animated screen blanker for DOS and Windows 3 by H&G Software (Reidar Gresseth and Chris Hook) Range: AH=C0h to AH=C9h, selected by configuration SeeAlso: AX=C050h Index: screen saver;Explosiv --------V-2FC050----------------------------- INT 2F - Explosiv v2.00+ - INSTALLATION CHECK AX = C050h Return: AL = 51h if installed ---v3.0+ --- BX = interval in clock ticks CH = animation display color (00h mono, 01h tinge, 02h color) CL = animation delay factor DH = animation parameters DL = INT 10 checking (00h on, 01h off) SI = number of bytes available for animation code DI = display type (00h VGA, 01h EGA, 02h CGA, 03h HGC, 04h MDA) Program: Explosiv is a shareware animated screen blanker for DOS and Windows 3 by H&G Software (Reidar Gresseth and Chris Hook) Range: AH=C0h to AH=C9h, selected by configuration SeeAlso: AH=93h,AX=C000h"AD-DOS",AX=C04Eh,AX=C052h,AX=C054h"v3" SeeAlso: INT 14/AX=AA01h Index: screen saver;Explosiv --------V-2FC052----------------------------- INT 2F - Explosiv v2.00+ - UNINSTALL AX = C052h DX:BX = address to return to on successful uninstall Return: at specified address if successful AL = 53h on error Note: specified return address must have the segment of the caller's PSP SeeAlso: AX=C050h Index: screen saver;Explosiv --------V-2FC054----------------------------- INT 2F - Explosiv v2.x - GET ANIMATION DELAY FACTOR AX = C054h Return: AL = delay factor SeeAlso: AX=C057h Index: screen saver;Explosiv --------V-2FC054----------------------------- INT 2F - Explosiv v3.0+ - UPDATE PARAMETERS AX = C054h BX = new interval in clock ticks CH = animation display color (00h mono, 01h tinge, 02h color) CL = animation delay factor DH = animation parameters DL = INT 10 checking (00h on, 01h off) SeeAlso: AX=C050h Index: screen saver;Explosiv --------V-2FC055----------------------------- INT 2F - Explosiv v2.x - SET BLANKING INTERVAL AX = C055h BX = new interval in clock ticks Index: screen saver;Explosiv --------V-2FC056----------------------------- INT 2F - Explosiv v2.x - SET ANIMATION DISPLAY TYPE AX = C056h BL = animated display type (00h mono, 01h color) SeeAlso: AX=C058h"v2.x" Index: screen saver;Explosiv --------V-2FC056----------------------------- INT 2F - Explosiv v3.0+ - ENABLE/DISABLE EXPLOSIV AX = C056h BX = new state 0000h disabled 0100h enabled 0101h enabled, but never blank 0102h enabled, always blank --------V-2FC057----------------------------- INT 2F - Explosiv v2.x - SET ANIMATION DELAY FACTOR AX = C057h BL = delay factor SeeAlso: AX=C054h"v2.x" Index: screen saver;Explosiv --------V-2FC058----------------------------- INT 2F - Explosiv v2.x - SET ANIMATION PARAMETER AX = C058h BL = animation parameter Note: the animation parameter has different interpretations for each display SeeAlso: AX=C056h"v2.x" Index: screen saver;Explosiv --------V-2FC058----------------------------- INT 2F - Explosiv v3.0+ - LOAD NEW ANIMATION DISPLAY CODE AX = C058h BX = file handle for file containing display code CX = number of bytes to load DX = offset at which animation code should be loaded Return: AL = status (see #2239) Note: if AL=00h-03h on return, the file will be closed Index: screen saver;Explosiv (Table 2239) Values for Explosiv function status: 00h successful 01h code too large to available space 02h no data read, load aborted 03h incomplete load, default blanking display loaded instead 58h unexpected offset in DX --------V-2FC059----------------------------- INT 2F - Explosiv v2.x - DISABLE EXPLOSIV AX = C059h Note: clears flag set by AX=C05Ah SeeAlso: AX=C05Ah Index: screen saver;Explosiv --------V-2FC05A----------------------------- INT 2F u - Explosiv v2.x - ENABLE EXPLOSIV AX = C05Ah BL = ??? Note: sets flag cleared by AX=C059h then stores BL SeeAlso: AX=C059h,AX=C05Bh Index: screen saver;Explosiv --------V-2FC05B----------------------------- INT 2F - Explosiv v2.x - CHANGE ANIMATION DISPLAY AX = C05Bh BL = animation display Note: this function fails silently if the requested display is not in memory SeeAlso: AX=C05Ah,AX=C05Ch Index: screen saver;Explosiv --------V-2FC05C----------------------------- INT 2F - Explosiv v2.x - SET INT 10 CHECKING AX = C05Ch BL = new state of INT 10 checking (00h enabled, 01h disabled) SeeAlso: AX=C05Bh Index: screen saver;Explosiv --------v-2FC080----------------------------- INT 2F U - AMI IAM.SYS - INSTALL ??? CALLBACK AX = C080h CX:DX -> ??? callback DI = segment of ??? buffer (first WORD copied into IAM.SYS) Program: IAM.SYS is the Illegal Activity Monitor portion of American Megatrends, Inc.'s PC-Defender anti-virus product Note: also sets ??? flag SeeAlso: AX=C081h Format of IAM.SYS buffer: Offset Size Description (Table 2240) 00h BYTE ??? 01h BYTE ??? 02h N BYTEs ??? (ASCIZ strings) --------v-2FC081----------------------------- INT 2F U - AMI IAM.SYS - CLEAR ??? AX = C081h Desc: clears the ??? flag that AX=C080h sets SeeAlso: AX=C080h --------K-2FC0AE----------------------------- INT 2F U - HP 100LX/200LX - PUSHKEYS - INSTALLATION CHECK AX = C0AEh Return: AX = 4453h if installed CX = 5259h if installed Range: AH=C0h to AH=FFh, selected by scanning for signature SeeAlso: AX=C000h"HP 100LX",AX=C001h"HP 100LX",AX=C0AFh"HP 100LX" --------K-2FC0AF----------------------------- INT 2F U - HP 100LX/200LX - PUSHKEYS - INTERNAL - GET BUFFER ADDRESS AX = C0AFh Return: ES:DI -> buffer (behind code) Range: AH=C0h to AH=FFh, selected by scanning for signature with AL=AEh SeeAlso: AX=C000h"HP 100LX",AX=C001h"HP 100LX",AX=C0AEh"HP 100LX" --------N-2FC100----------------------------- INT 2F U - Personal NetWare - STPIPX v1.00 - INSTALLATION CHECK AX = C100h Return: AL = FFh if installed ES:SI -> signature string "STP-IPX$" BX = version??? (0001h for v1.00) DI corrupted Note: AH=C1h is the default value; STPIPX probably scans a range of multiplex numbers to find a free one, as LSL does SeeAlso: AX=C000h"LSL",AX=C101h --------N-2FC101----------------------------- INT 2F U - Personal NetWare - STPIPX v1.00 - UNINSTALL AX = C101h Return: AL = status??? BX corrupted SeeAlso: AX=C101h --------N-2FC205----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Redirector - ??? AX = C205h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C2F0h"LapLink" SeeAlso: AX=C2F1h"LapLink",AX=C301h"LapLink" --------N-2FC2F0----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Redirector - ??? AX = C2F0h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C205h"LapLink" SeeAlso: AX=C2F1h"LapLink",AX=C301h"LapLink" --------N-2FC2F1----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Redirector - ??? AX = C2F1h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C205h"LapLink" SeeAlso: AX=C2F0h"LapLink",AX=C301h"LapLink" --------d-2FC300----------------------------- INT 2F - SETWPR.COM - INSTALLATION CHECK AX = C300h Return: AL = FFh if installed Program: SETWPR is a hard-disk write-protection TSR by Jaroslaw Rafa SeeAlso: AX=C302h"SETWPR" --------k-2FC300DX0000----------------------- INT 2F U - SpaceManager - INSTALLATION CHECK AX = C300h DX = 0000h Return: AL = FFh if any SpaceManager programs installed BX = 6F73h CX = 6F68h Program: SpaceManager is an enhancement for MS-DOS DoubleSpace by Vertisoft Systems, Inc. Range: AH=C3h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C300h/DX=0666h --------k-2FC300----------------------------- INT 2F U - SpaceManager - INSTALLATION VERIFICATION AX = C300h DX = program identifier (see #2241) or 0666h for any SpaceManager prog BX = 4F53h ('OS') CX = 4F48h ('OH') Return: AL = FFh if BX/CX as specified and specified program installed BX = 6F73h ('os') CX = 6F68h ('oh') Range: AH=C3h to AH=FFh, selected by scanning for first free multiplex number Note: this call is chained if BX,CX, or DX are not as specified above SeeAlso: AX=C300h/DX=0000h (Table 2241) Values for SpaceManager program identifier: 9000h SMOUNT (SuperMount) 9001h SELECTC (SelectCompress) 9002h SUPERX (SuperExchange) 9003h FORTUNE (FortuneTeller) --------k-2FC301----------------------------- INT 2F U - SpaceManager - ??? AX = C301h DX = program identifier (9000h,9001h,9003h) (see #2241) ??? Return: ??? --------N-2FC301----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Compression - ??? AX = C301h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C205h"LapLink" SeeAlso: AX=C2F0h"LapLink",AX=C3F0h"LapLink",AX=C3F1h"LapLink" --------k-2FC302----------------------------- INT 2F U - SpaceManager - ENABLE PROGRAM AX = C302h DX = program identifier (9000h,9001h,9003h) (see #2241) Return: AX destroyed SeeAlso: AX=C303h,AX=C306h --------d-2FC302----------------------------- INT 2F - SETWPR.COM - SET WRITE-PROTECTION STATE AX = C302h BL = new state 00h disk may be written 01h disk write-protected Return: AL = FFh if installed Program: SETWPR is a hard-disk write-protection TSR by Jaroslaw Rafa SeeAlso: AX=C300h"SETWPR" --------k-2FC303----------------------------- INT 2F U - SpaceManager - DISABLE PROGRAM AX = C303h DX = program identifier (9000h,9001h,9003h) (see #2241) Return: AX destroyed SeeAlso: AX=C302h,AX=C306h --------k-2FC304----------------------------- INT 2F U - SpaceManager - GET PER-DRIVE ENABLEMENT TABLE AX = C304h DX = program identifier (9000h,9001h,9003h) (see #2241) Return: ES:BX -> 26-byte drive table (00h disabled for drive, 01h enabled) AX destroyed --------k-2FC305DX9003----------------------- INT 2F U - SpaceManager - FORTUNE.EXE - NOP AX = C305h DX = 9003h Return: AX destroyed --------k-2FC305----------------------------- INT 2F U - SpaceManager - ??? AX = C305h DX = program identifier (9000h,9001h) (see #2241) ??? Return: ??? --------k-2FC306----------------------------- INT 2F U - SpaceManager - CHECK WHETHER PROGRAM ENABLED AX = C306h DX = program identifier (9000h,9001h,9003h) (see #2241) Return: AL = current state (00h disabled, FAh enabled) AH destroyed SeeAlso: AX=C302h,AX=C303h --------k-2FC307DX9001----------------------- INT 2F U - SpaceManager - SELECTC - ??? AX = C307h DX = 9001h BX = ??? CX = ??? ??? Return: ??? --------k-2FC308DX9001----------------------- INT 2F U - SpaceManager - SELECTC - ??? AX = C308h DX = 9001h ??? Return: ??? --------N-2FC3F0----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Compression - ??? AX = C3F0h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C205h"LapLink" SeeAlso: AX=C2F0h"LapLink",AX=C301h"LapLink",AX=C3F1h"LapLink" --------N-2FC3F1----------------------------- INT 2F U - LapLink RemoteAccess (LLRA) - Compression - ??? AX = C3F1h details not yet available Range: AH=C0h to AH=FFh, selected by scanning for first free multiplex number SeeAlso: AX=C000h"LapLink",AX=C002h"LapLink",AX=C205h"LapLink" SeeAlso: AX=C2F0h"LapLink",AX=C301h"LapLink",AX=C3F0h"LapLink" --------d-2FC64CBX5553----------------------- INT 2F U - Smart Prompt - INSTALLATION CHECK AX = C64Ch BX = 5553h Return: AX = 4CC6h if installed BX = 5355h if installed Program: Smart Prompt (SMARTPMT) is a freeware TSR by Steve Gibson which forces an immediate flush of SmartDrive's (and compatible caches') buffers on returning to the DOS prompt --------V-2FC700CX434C----------------------- INT 2F u - COLAP - INSTALLATION CHECK AX = C700h CX = 434Ch "CL" Return: AL = FFh if installed Program: colap.com is a freeware TSR by Eric Meyer which controls contrast and brightness of color laptops by changing the VGA palette colors; for Toshiba laptops there are more hotkeys for shutting off display and harddisk. --------v-2FC900BP0000----------------------- INT 2F U - ThunderByte??? - INSTALLATION CHECK AX = C900h BP = 0000h Return: AL = FFh if installed BP >= 0014h Note: called by TBSCANX SeeAlso: AX=C987h,AX=CA00h --------v-2FC987----------------------------- INT 2F U - ThunderByte??? - DISINFECT FILE??? AX = C987h BX:DX -> filename BX:CX -> virus name Return: AX = status 0000h successful??? Note: called by TBSCANX SeeAlso: AX=CA00h --------r-2FC9FF----------------------------- INT 2F C - StackMan - INSTALLATION BROADCAST AX = C9FFh BL = BCD version number CX = number of stacks DX = stack size in bytes Program: StackMan is a freeware stack manager by Franz Veldman of ESaSS B.V. which functions as a replacement for the DOS STACK= command as well as permitting multiple TSRs to share a pool of stack space Notes: called by StackMan when it goes resident to inform interested TSRs that its API is available the installation check consists of testing for the string "STACKXXX" at offset 0Ah from the INT B4 handler SeeAlso: INT B4"StackMan",INT B5"StackMan" Index: installation check;STACKMAN|broadcasts;STACKMAN installation --------F-2FCA------------------------------- INT 2F - FAXPLUS - FAX TSR AH = CAh ??? Return: ??? Program: FAXTSR is a resident FAX send/receive module for FAXPLUS by Frans Veldman SeeAlso: AH=2Ah"Gammafax" --------v-2FCA00BX5442----------------------- INT 2F - TBSCANX - INSTALLATION CHECK AX = CA00h BX = 5442h ('TB') Return: AL = state 00h not installed FFh installed BX = 7462h ('tb') if BX was 5442h on entry Program: TBSCANX is a resident virus scanning module by Frans Veldman. Note: programs may perform virus checks on themselves, other program files, or their data files by invoking the TBSCANX API. SeeAlso: AX=4653h,AX=C900h --------v-2FCA01----------------------------- INT 2F - TBSCANX - GET STATUS AX = CA01h Return: AH = BCD version number (v2.2+) CAh for versions before 2.2 AL = state (00h = disabled, 01h = enabled) CX = number of signatures which will be searched ---v2.0--- BX = EMS handle, 0000h if not using EMS ---v2.3+--- BX = segment of swap area, 0000h if not swapped DX = EMS or XMS handle (XMS handle if BX=0000h), FFFFh if not using EMS SeeAlso: AX=CA02h --------v-2FCA02----------------------------- INT 2F - TBSCANX - SET STATE AX = CA02h BL = new state (00h = disabled, 01h = enabled) SeeAlso: AX=CA01h --------v-2FCA03----------------------------- INT 2F - TBSCANX - SCAN BUFFER AX = CA03h CX = size of buffer DS:DX -> buffer containing data to scan Return: CF clear if no virus signatures found BX,ES destroyed CF set if signature found ES:BX -> ASCIZ virus name (v2.3+) DS:DX -> ASCIZ virus name (v2.0) AX,CX,DX destroyed (v2.3+) all other registers except CS:IP and SS:SP destroyed (v2.0) SeeAlso: AX=CA04h --------v-2FCA04----------------------------- INT 2F - TBSCANX - SCAN FILE AX = CA04h DS:DX -> filename Return: CF clear if no virus signatures found BX,ES destroyed CF set if signature found ES:BX -> ASCIZ virus name AX,CX,DX destroyed Note: this function requires at least 4K free memory SeeAlso: AX=CA03h --------U-2FCAFEBX0000----------------------- INT 2F U - THELP v3.0 - INSTALLATION CHECK AX = CAFEh BX = 0000h Return: BX = segment of resident code if installed 0000h if not installed SeeAlso: AX=5453h,INT 2D"AMIS" --------!---Section--------------------------