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Interrupt List, part 8 of 10 This compilation is Copyright (c) 1989,1990,1991,1992,1993 Ralf Brown --------D-30--------------------------------- INT 30 - (NOT A VECTOR!) - DOS 1+ - FAR JMP instruction for CP/M-style calls the CALL 5 entry point does a FAR jump to here Note: under DOS 2+, the instruction at PSP:0005 points two bytes too low in memory SeeAlso: INT 21/AH=26h --------D-31--------------------------------- INT 31 - overwritten by CP/M jump instruction in INT 30 --------v-31--------------------------------- INT 31 - VIRUS - "Vacsina" series - INSTALLATION CHECK (NOT A VECTOR!) Note: if one of the Vacsina viruses is resident, the low byte of this interrupt still contains the last byte of the INT 30 CP/M JMP instruction, but the remaining three bytes are 7Fh 39h followed by the Vacsina version number SeeAlso: INT 21/AX=FFFFh"VIRUS",INT 32"VIRUS" --------E-310000----------------------------- INT 31 P - DPMI 0.9+ - ALLOCATE LDT DESCRIPTORS AX = 0000h CX = number of descriptors to allocate Return: CF clear if successful AX = base selector CF set on error AX = error code (DPMI 1.0+) (see below) Notes: DPMI is the DOS Protected-Mode Interface the base and limit of the returned descriptors will be 0, and the type will be "data" add the value returned by INT 31/AX=0003h to move to subsequent descriptors if multiple descriptors were allocated not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0001h,AX=000Dh,INT 21/AX=3501h Values for error code: 0000h-7FFFh DOS error passed through by DPMI 8001h unsupported function 8002h object in wrong state for function 8003h system integrity would be endangered 8004h deadlock detected 8005h pending serialization request cancelled 8010h out of DPMI internal resources 8011h descriptor unavailable 8012h linear memory unavailable 8013h physical memory unavailable 8014h backing store unavailable 8015h callback unavailable 8016h handle unavailable 8017h maximum lock count exceeded 8018h shared memory already serialized exclusively by another 8019h shared memory already serialized shared by another client 8021h invalid value for numeric or flag parameter 8022h invalid segment selector 8023h invalid handle 8024h invalid callback 8025h invalid linear address 8026h request not supported by hardware --------E-310001----------------------------- INT 31 P - DPMI 0.9+ - FREE LDT DESCRIPTOR AX = 0001h BX = selector to free Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8022h) (see AX=0000h) Notes: only one descriptor is freed per call the program's initial CS, DS, and SS descriptors may be freed (DPMI 1.0+) any segment registers containing the freed selector are set to 0000h not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0000h,AX=000Ah,AX=000Dh,INT 21/AX=3502h --------E-310002----------------------------- INT 31 P - DPMI 0.9+ - SEGMENT TO DESCRIPTOR AX = 0002h BX = real mode segment Return: CF clear if successful AX = selector corresponding to real mode segment (64K limit) CF set on error AX = error code (DPMI 1.0+) (8011h) (see AX=0000h) Notes: multiple calls for the same real mode segment return the same selector the returned descriptor can never be modified or freed not supported by MS Windows 3.0 in Standard mode --------E-310003----------------------------- INT 31 P - DPMI 0.9+ - GET NEXT SELECTOR INCREMENT VALUE AX = 0003h Return: CF clear AX = value to add to get next sequential selector Notes: the increment will be a power of two not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0000h --------E-310004----------------------------- INT 31 P - DPMI 0.9+ - LOCK SELECTOR AX = 0004h BX = selector to lock (prevent paging) Return: ??? Note: although marked as reserved in versions 0.9 and 1.0 of the DPMI specification, this function is called by MS Windows TASKMAN, PROGMAN, and KERNEL SeeAlso: AX=0005h,AX=0600h --------E-310005----------------------------- INT 31 P - DPMI 0.9+ - UNLOCK SELECTOR AX = 0005h BX = selector to unlock (permit paging) Return: ??? Note: although marked as reserved in versions 0.9 and 1.0 of the DPMI specification, this function is called by MS Windows TASKMAN, PROGMAN, and KERNEL SeeAlso: AX=0004h,AX=0601h --------E-310006----------------------------- INT 31 P - DPMI 0.9+ - GET SEGMENT BASE ADDRESS AX = 0006h BX = selector Return: CF clear if successful CX:DX = linear base address of segment CF set on error AX = error code (DPMI 1.0+) (8022h) (see AX=0000h) Note: not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0007h,INT 21/AX=3504h --------E-310007----------------------------- INT 31 P - DPMI 0.9+ - SET SEGMENT BASE ADDRESS AX = 0007h BX = selector CX:DX = linear base address Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8022h,8025h) (see AX=0000h) Notes: only modify descriptors allocated with INT 31/AX=0000h only the low 24 bits of the address will be used by 16-bit DPMI implementations even on a 386 or higher DPMI 1.0+ automatically reloads any segment registers containing the selector being modified not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0006h,AX=0008h,AX=0009h,AX=000Ch,INT 21/AX=3503h SeeAlso: INT 21/AH=E9h"OS/286" --------E-310008----------------------------- INT 31 P - DPMI 0.9+ - SET SEGMENT LIMIT AX = 0008h BX = selector CX:DX = segment limit Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see AX=0000h) Notes: CX must be zero for 16-bit DPMI implementations limits greater than 1MB must be page aligned (low 12 bits set) only modify descriptors allocated with INT 31/AX=0000h DPMI 1.0+ automatically reloads any segment registers containing the selector being modified not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0007h,AX=0009h,AX=000Ch,INT 21/AX=3505h,INT 21/AH=E9h"OS/286" --------E-310009----------------------------- INT 31 P - DPMI 0.9+ - SET DESCRIPTOR ACCESS RIGHTS AX = 0009h BX = selector CL = access rights/type byte CH = 80386 extended rights/type byte (32-bit DPMI implementations only) Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see AX=0000h) Notes: if the Present bit is clear, CL bits 0-3 may have any value DPMI 1.0+ automatically reloads any segment registers containing the selector being modified not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0007h,AX=0008h,AX=000Ch,INT 21/AX=2514h --------E-31000A----------------------------- INT 31 P - DPMI 0.9+ - CREATE ALIAS DESCRIPTOR AX = 000Ah BX = selector Return: CF clear if successful AX = new data selector CF set on error AX = error code (DPMI 1.0+) (8011h,8022h) (see AX=0000h) Notes: fails if selector in BX is not a code segment or is invalid use INT 31/AX=0001h to free new selector future changes to the original selector will not be reflected in the returned alias selector not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0001h --------E-31000B----------------------------- INT 31 P - DPMI 0.9+ - GET DESCRIPTOR AX = 000Bh BX = LDT selector ES:(E)DI -> 8-byte buffer for copy of descriptor Return: CF clear if successful buffer filled CF set on error AX = error code (DPMI 1.0+) (8022h) (see AX=0000h) Notes: 16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=000Ch --------E-31000C----------------------------- INT 31 P - DPMI 0.9+ - SET DESCRIPTOR AX = 000Ch BX = LDT selector ES:(E)DI -> 8-byte buffer containing descriptor Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8021h,8022h,8025h) (see AX=0000h) Notes: 16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI only modify descriptors allocated with INT 31/AX=0000h DPMI 1.0+ automatically reloads any segment registers containing the selector being modified not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=000Bh --------E-31000D----------------------------- INT 31 P - DPMI 0.9+ - ALLOCATE SPECIFIC LDT DESCRIPTOR AX = 000Dh BX = LDT selector Return: CF clear if successful descriptor allocated CF set on error AX = error code (DPMI 1.0+) (8011h,8022h) (see AX=0000h) Notes: free descriptor with INT 31/AX=0001h the first 16 descriptors (04h-7Ch) are reserved for this function, but some may already be in use by other applications under DPMI 0.9; DPMI 1.0 guarantees 16 descriptors per client not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0000h,AX=0001h --------E-31000E----------------------------- INT 31 P - DPMI 1.0+ - GET MULTIPLE DESCRIPTORS AX = 000Eh CX = number of descriptors to copy ES:(E)DI -> descriptor buffer (see below) Return: CF clear if successful descriptors copied CF set on error AX = error code (8022h) (see AX=0000h) CX = number of descriptors successfully copied Notes: 16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI if the function fails, the first CX descriptors are valid; the remainder are not modified SeeAlso: AX=000Bh,AX=000Fh Format of descriptor buffer entry (one per descriptor to get): Offset Size Description 00h WORD selector (set by client) 02h QWORD descriptor (set by host) --------E-31000F----------------------------- INT 31 P - DPMI 1.0+ - SET MULTIPLE DESCRIPTORS AX = 000Fh CX = number of descriptors to copy ES:(E)DI -> descriptor buffer (see below) Return: CF clear if successful descriptors copied CF set on error AX = error code (8021h,8022h,8025h) (see AX=0000h) CX = number of descriptors successfully copied Notes: 16-bit programs use ES:DI as pointer, 32-bit must use ES:EDI if the function fails, the first CX descriptors are valid; the remainder are not modified DPMI 1.0+ automatically reloads any segment registers containing a selector being modified SeeAlso: AX=000Ch,AX=000Eh Format of descriptor buffer entry (one per descriptor to set): Offset Size Description 00h WORD selector 02h QWORD descriptor --------E-310100----------------------------- INT 31 P - DPMI 0.9+ - ALLOCATE DOS MEMORY BLOCK AX = 0100h BX = number of paragraphs to allocate Return: CF clear if successful AX = real mode segment of allocated block DX = first selector for allocated block CF set on error AX = DOS error code (07h,08h) (see INT 21/AH=59h) (DPMI 1.0+) DPMI error code (8011h) (see AX=0000h) BX = size (in paragraphs) of largest available block Notes: multiple contiguous selectors are allocated for blocks of more than 64K if the caller is a 16-bit program never modify or deallocate returned descriptors not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0101h,AX=0501h --------E-310101----------------------------- INT 31 P - DPMI 0.9+ - FREE DOS MEMORY BLOCK AX = 0101h DX = selector of block Return: CF set if successful CF set on error AX = DOS error code (07h,09h) (see INT 21/AH=59h) Notes: all descriptors allocated for the block are automatically freed DPMI 1.0+ automatically zeros any segment registers containing a selector freed by this function not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0100h,AX=0102h,AX=0502h --------E-310102----------------------------- INT 31 P - DPMI 0.9+ - RESIZE DOS MEMORY BLOCK AX = 0102h BX = new block size in paragraphs DX = selector of block Return: CF clear if successful CF set on error AX = DOS error code (07h,08h,09h) (see INT 21/AH=59h) (DPMI 1.0+) DPMI error code (8011h,8022h) (see AX=0000h) BX = maximum block size (in paragraphs) possible Notes: increasing the size of a block past a 64K boundary will fail if the next descriptor in the LDT is already in use shrinking a block past a 64K boundary will cause some selectors to be freed; DPMI 1.0+ automatically zeros any segment registers containing a selector freed by this function not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0100h --------E-310200----------------------------- INT 31 P - DPMI 0.9+ - GET REAL MODE INTERRUPT VECTOR AX = 0200h BL = interrupt number Return: CF clear CX:DX = segment:offset of real mode interrupt handler Note: the DPMI implementation is required to support all 256 vectors SeeAlso: AX=0201h,AX=0204h,INT 21/AX=2503h --------E-310201----------------------------- INT 31 P - DPMI 0.9+ - SET REAL MODE INTERRUPT VECTOR AX = 0201h BL = interrupt number CX:DX = segment:offset of real mode handler Return: CF clear Note: all memory that may be touched by a hardware interrupt handler must be locked down with INT 31/AX=0600h SeeAlso: AX=0200h,AX=0205h,AX=0600h,INT 21/AX=2505h --------E-310202----------------------------- INT 31 P - DPMI 0.9+ - GET PROCESSOR EXCEPTION HANDLER VECTOR AX = 0202h BL = exception number (00h-1Fh) Return: CF clear if successful CX:(E)DX = selector:offset of handler CF set on error AX = error code (DPMI 1.0+) (8021h) (see AX=0000h) Notes: 16-bit programs receive the pointer in CX:DX, 32-bit programs in CX:EDX DPMI 1.0+ supports this function only for backward compatibility; use AX=0210h or AX=0211h instead not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0203h,AX=0210h,AX=0211h,INT 2F/AX=FB42h/BX=0021h --------E-310203----------------------------- INT 31 P - DPMI 0.9+ - SET PROCESSOR EXCEPTION HANDLER VECTOR AX = 0203h BL = exception number (00h-1Fh) CX:(E)DX = selector:offset of handler Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8021h,8022h) (see AX=0000h) Notes: 32-bit programs must supply an offset in EDX and use a 32-bit interrupt stack frame on chaining to the next exception handler the handler should return using a FAR return all fault stack frames contain an error code, but it is only valid for exceptions 08h and 0Ah-0Eh handlers will only be called if the exception occurs in protected mode, and the DPMI host does not transparently handle the exception the handler may change certain values on the stack frame (see below) DPMI 1.0+ supports this function only for backward compatibility; use AX=0212h or AX=0213h instead not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0202h,AX=0212h,AX=0213h,INT 2F/AX=FB42h/BX=0022h Format of stack frame for 16-bit programs: (offset from SS:SP) Offset Size Description 00h DWORD return CS:IP (do not change) 04h WORD error code 06h DWORD CS:IP of exception 0Ah WORD flags 0Ch DWORD SS:SP Format of stack frame for 32-bit programs: (offset from SS:ESP) Offset Size Description 00h DWORD return EIP (do not change) 04h WORD return CS selector (do not change) 06h WORD reserved (do not change) 08h DWORD error code 0Ch DWORD EIP of exception 10h WORD CS selector of exception 12h WORD reserved (do not change) 14h DWORD EFLAGS 18h DWORD ESP 1Ch WORD SS 1Eh WORD reserved (do not change) --------E-310204----------------------------- INT 31 P - DPMI 0.9+ - GET PROTECTED MODE INTERRUPT VECTOR AX = 0204h BL = interrupt number Return: CF clear CX:(E)DX = selector:offset of handler Notes: 16-bit programs use CX:DX, 32-bit programs use CX:EDX DPMI implementations are required to support all 256 vectors not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0200h,AX=0205h,INT 21/AX=2502h,INT 2F/AX=FB42h/BX=0024h --------E-310205----------------------------- INT 31 P - DPMI 0.9+ - SET PROTECTED MODE INTERRUPT VECTOR AX = 0205h BL = interrupt number CX:(E)DX = selector:offset of handler Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8022h) (see AX=0000h) Notes: 16-bit programs use CX:DX, 32-bit programs use CX:EDX 32-bit programs must use a 32-bit interrupt stack frame when chaining to the next handler DPMI implementations are required to support all 256 vectors hardware interrupts are reflected to the virtual machine's primary client, software interrupts to the current client not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0201h,AX=0204h,INT 21/AX=2504h,INT 2F/AX=FB42h/BX=0025h --------E-310210----------------------------- INT 31 P - DPMI 1.0+ - GET PROTECTED MODE EXTENDED PROCESSOR EXCEPTION HANDLER AX = 0210h BL = exception number (00h-1Fh) Return: CF clear if successful CX:(EDX) = selector:offset of exception handler CF set on error AX = error code (8021h) (see AX=0000h) Note: DPMI host reflects exception to current client's handler SeeAlso: AX=0202h,AX=0211h,AX=0212h --------E-310211----------------------------- INT 31 P - DPMI 1.0+ - GET REAL MODE EXTENDED PROCESSOR EXCEPTION HANDLER AX = 0211h BL = exception number (00h-1Fh) Return: CF clear if successful CX:(EDX) = selector:offset of exception handler CF set on error AX = error code (8021h) (see AX=0000h) Notes: returns address of protected-mode handler for real-mode exception DPMI host performs a switch to protected mode, reflects the exception to the virtual machine's primary client, and returns to real mode on the handler's completion SeeAlso: AX=0202h,AX=0210h,AX=0213h --------E-310212----------------------------- INT 31 P - DPMI 1.0+ - SET PROTECTED MODE EXTENDED PROCESSOR EXCEPTION HANDLER AX = 0212h BL = exception or fault number (00h-1Fh) CX:(E)DX = exception handler selector:offset Return: CF clear if successful CF set on error AX = error code (8021h,8022h) (see AX=0000h) Note: DPMI host sends exception to current client's handler SeeAlso: AX=0203h,AX=0210h,AX=0213h --------E-310213----------------------------- INT 31 P - DPMI 1.0+ - SET REAL MODE EXTENDED PROCESSOR EXCEPTION HANDLER AX = 0213h BL = exception or fault number (00h-1Fh) CX:(E)DX = exception handler selector:offset Return: CF clear if successful CF set on error AX = error code (8021h,8022h) (see AX=0000h) Notes: specifies address of protected-mode handler for real-mode exception DPMI host performs a switch to protected mode, reflects the exception to the virtual machine's primary client, and returns to real mode on the handler's completion SeeAlso: AX=0203h,AX=0211h,AX=0212h --------E-310300----------------------------- INT 31 P - DPMI 0.9+ - SIMULATE REAL MODE INTERRUPT AX = 0300h BL = interrupt number BH = flags bit 0: reset the interrupt controller and A20 line (DPMI 0.9) reserved, must be 0 (DPMI 1.0+) others must be 0 CX = number of words to copy from protected mode to real mode stack ES:(E)DI = selector:offset of real mode call structure (see below) Return: CF clear if successful real mode call structure modified (all fields except SS:SP, CS:IP filled with return values from real mode interrupt) CF set on error AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see AX=0000h) protected mode stack unchanged Notes: 16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI CS:IP in the real mode call structure is ignored for this call, instead, the indicated interrupt vector is used for the address the flags in the call structure are pushed on the real mode stack to form an interrupt stack frame, and the trace and interrupt flags are clear on entry to the handler DPMI will provide a small (30 words) real mode stack if SS:SP is zero the real mode handler must return with the stack in the same state as it was on being called SeeAlso: AX=0302h,INT 21/AX=2511h,INT 21/AH=E3h"OS/286" SeeAlso: INT 2F/AX=FB42h/BX=000Dh Format of real mode call structure: Offset Size Description 00h DWORD EDI 04h DWORD ESI 08h DWORD EBP 0Ch DWORD reserved (00h) 10h DWORD EBX 14h DWORD EDX 18h DWORD ECX 1Ch DWORD EAX 20h WORD flags 22h WORD ES 24h WORD DS 26h WORD FS 28h WORD GS 2Ah WORD IP 2Ch WORD CS 2Eh WORD SP 30h WORD SS --------E-310301----------------------------- INT 31 P - DPMI 0.9+ - CALL REAL MODE PROCEDURE WITH FAR RETURN FRAME AX = 0301h BH = flags bit 0: reset the interrupt controller and A20 line (DPMI 0.9) reserved, must be 0 (DPMI 1.0+) others must be 0 CX = number of words to copy from protected mode to real mode stack ES:DI / ES:EDI = selector:offset of real mode call structure (see INT 31/AX=0300h) Return: CF clear if successful real mode call structure modified (all fields except SS:SP, CS:IP filled with return values from real mode interrupt) CF set on error AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see AX=0000h) protected mode stack unchanged Notes: 16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI the real mode procedure must exit with a FAR return DPMI will provide a small (30 words) real mode stack if SS:SP is zero the real mode handler must return with the stack in the same state as it was on being called SeeAlso: AX=0300h,AX=0302h,INT 21/AX=250Eh,INT 21/AH=E1h"OS/286" --------E-310302----------------------------- INT 31 P - DPMI 0.9+ - CALL REAL MODE PROCEDURE WITH IRET FRAME AX = 0302h BH = flags bit 0: reset the interrupt controller and A20 line (DPMI 0.9) reserved, must be 0 (DPMI 1.0+) others must be 0 CX = number of words to copy from protected mode to real mode stack ES:DI / ES:EDI = selector:offset of real mode call structure (see INT 31/AX=0300h) Return: CF clear if successful real mode call structure modified (all fields except SS:SP, CS:IP filled with return values from real mode interrupt) CF set on error AX = error code (DPMI 1.0+) (8012h,8013h,8014h,8021h)(see AX=0000h) protected mode stack unchanged Notes: 16-bit programs use ES:DI as pointer, 32-bit programs use ES:EDI the flags in the call structure are pushed on the real mode stack to form an interrupt stack frame, and the trace and interrupt flags are clear on entry to the handler the real mode procedure must exit with an IRET DPMI will provide a small (30 words) real mode stack if SS:SP is zero the real mode handler must return with the stack in the same state as it was on being called SeeAlso: AX=0300h --------E-310303----------------------------- INT 31 P - DPMI 0.9+ - ALLOCATE REAL MODE CALLBACK ADDRESS AX = 0303h DS:SI / DS:ESI = selector:offset of procedure to call ES:DI / ES:EDI = selector:offset of real mode call structure (see AX=0300h) Return: CF clear if successful CX:DX = segment:offset of real mode call address CF set on error AX = error code (DPMI 1.0+) (8015h) (see AX=0000h) Notes: the real mode call structure is static, causing reentrancy problems; its contents are only valid at the time of a callback the called procedure must modify the real mode CS:IP before returning values are returned to real mode by modifying the real mode call struc DPMI hosts must provide at least 16 callbacks per client SeeAlso: AX=0304h,AX=0C00h Values callback procedure is called with: DS:SI / DS:ESI = selector:offset of real mode SS:SP ES:DI / ES:EDI = selector:offset of real mode call structure SS:SP / SS:ESP = locked protected mode API stack interrupts disabled Return: (with IRET) ES:DI / ES:EDI = selector:offset of real mode call structure to restore --------E-310304----------------------------- INT 31 P - DPMI 0.9+ - FREE REAL MODE CALLBACK ADDRESS AX = 0304h CX:DX = real mode callback address Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8024h) (see AX=0000h) SeeAlso: AX=0303h --------E-310305----------------------------- INT 31 P - DPMI 0.9+ - GET STATE SAVE/RESTORE ADDRESSES AX = 0305h Return: CF clear AX = size in bytes of state buffer BX:CX = real mode address of procedure to save/restore state SI:DI / SI:EDI = protected mode procedure to save/restore state Notes: the buffer size will be zero if it is not necessary to preserve state 16-bit programs should call SI:DI, 32-bit programs should call SI:EDI this function is only needed if using the raw mode switch service SeeAlso: AX=0306h Values to call state-save procedures with: AL = direction 00h save state 01h restore state ES:DI / ES:EDI -> state buffer Return: all registers preserved --------E-310306----------------------------- INT 31 P - DPMI 0.9+ - GET RAW MODE SWITCH ADDRESSES AX = 0306h Return: CF clear BX:CX -> procedure to switch from real to protected mode SI:DI / SI:EDI -> procedure to switch from protected to real mode Notes: 16-bit programs should jump to SI:DI, 32-bit programs should use SI:EDI the caller must save and restore the state of the task with AX=0305h not supported by MS Windows 3.0 in Standard mode SeeAlso: AX=0305h Values to JUMP at mode-switch procedures with: AX = new DS CX = new ES DX = new SS BX / EBX = new SP / ESP SI = new CS DI / EDI = new IP / EIP Notes: BP/EBP is preserved across the call, but AX/EAX, BX/EBX, CX/ECX, DX/EDX, SI/ESI, and DI/EDI will be undefined; FS and GS will be 0000h interrupts will stay disabled during the entire mode switch if they are disabled on entry to the mode-switch procedure --------E-310400----------------------------- INT 31 P - DPMI 0.9+ - GET DPMI VERSION AX = 0400h Return: CF clear AH = major version of DPMI spec supported AL = two-digit minor version of DPMI spec supported BX = flags bit 0: running under an 80386 (32-bit) implementation bit 1: processor returns to real mode for reflected interrupts instead of V86 mode bit 2: virtual memory supported bit 3: reserved (undefined) others reserved (zero) CL = processor type (02h=80286, 03h=80386, 04h=80486) DH = curr value of virtual master interrupt controller base interrupt DL = curr value of virtual slave interrupt controller base interrupt SeeAlso: AX=0401h,INT 21/AX=250Ch,INT 2F/AX=1687h,INT 67/AX=DE0Ah --------E-310401----------------------------- INT 31 P - DPMI 1.0+ - GET DPMI CAPABILITIES AX = 0401h ES:(E)DI -> 128-byte buffer for host description (see below) Return: CF clear if successful AX = capabilities (see below) CX = reserved (00h) DX = reserved (00h) buffer filled CF set on error (DPMI 0.9 only) SeeAlso: AX=0400h Bitfields for capabilities: bit 0 paged accessed/dirty supported (see AX=0506h,AX=0507h) bit 1 exceptions restartability supported bit 2 device mapping supported (see AX=0508h) bit 3 conventional memory mapping supported (see AX=0509h) bit 4 demand zero-fill supported bit 5 write-protect client capability supported bit 6 write-protect host capability supported bits 7-15 reserved Format of host description: Offset Size Description 00h BYTE host major version number 01h BYTE host minor version number 02h 126 BYTEs ASCIZ host vendor name --------E-310500----------------------------- INT 31 P - DPMI 0.9+ - GET FREE MEMORY INFORMATION AX = 0500h ES:DI / ES:EDI -> buffer for memory information (see below) Return: CF clear Notes: 16-bit programs use ES:DI, 32-bit programs use ES:EDI this function must be considered advisory because other applications may affect the results at any time after the call fields not supported by the DPMI implementation are filled with FFFFFFFFh DPMI 1.0+ supports this function solely for backward compatibility; use AX=050Bh instead SeeAlso: AX=0501h,AX=0604h Format of memory information: Offset Size Description 00h DWORD largest available block in bytes 04h DWORD maximum unlocked page allocation 08h DWORD maximum locked page allocation 0Ch DWORD total linear address space in pages 10h DWORD total unlocked pages 14h DWORD free pages 18h DWORD total physical pages 1Ch DWORD free linear address space in pages 20h DWORD size of paging file/partition in pages 24h 12 BYTEs reserved --------E-310501----------------------------- INT 31 P - DPMI 0.9+ - ALLOCATE MEMORY BLOCK AX = 0501h BX:CX = size in bytes Return: CF clear if successful BX:CX = linear address of block SI:DI = memory block handle for resizing and freeing block CF set on error AX = error code (DPMI 1.0+) (8012h-8014h,8016h,8021h)(see AX=0000h) Notes: no selectors are allocated the memory block is allocated unlocked (can be locked with AX=0600h) allocations are often page granular (see AX=0604h) SeeAlso: AX=0000h,AX=0100h,AX=0500h,AX=0502h,AX=0503h,AX=0504h,AX=0D00h SeeAlso: INT 2F/AX=FB42h/BX=0002h --------E-310502----------------------------- INT 31 P - DPMI 0.9+ - FREE MEMORY BLOCK AX = 0502h SI:DI = handle of memory block Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8023h) (see AX=0000h) Note: any selectors allocated for the memory block must also be freed, preferably before freeing the memory block SeeAlso: AX=0001h,AX=0101h,AX=0501h,AX=0D01h --------E-310503----------------------------- INT 31 P - DPMI 0.9+ - RESIZE MEMORY BLOCK AX = 0503h BX:CX = new size in bytes (nonzero) SI:DI = handle of memory block Return: CF clear if successful BX:CX = new linear address SI:DI = new handle of memory block CF set on error AX = error code (DPMI 1.0+) (8012h-8014h,8016h,8021h,8023h) (see AX=0000h) Notes: any selectors pointing at the block must be updated the previous memory block handle becomes invalid an error is returned if the new size is 0 SeeAlso: AX=0102h,AX=0501h,AX=0505h --------E-310504----------------------------- INT 31 P - DPMI 1.0+ - ALLOCATE LINEAR MEMORY BLOCK AX = 0504h EBX = page-aligned linear address of memory block (00000000h if any address is acceptable) ECX = size in bytes (nonzero) EDX = flags bit 0: set to create committed pages instead of uncommitted pages bits 1-31 reserved (0) Return: CF clear if successful EBX = linear address of memory block ESI = memory block handle CF set on error AX = error code (8001h,8012h-8014h,8016h,8021h,8025h)(see AX=0000h) Note: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients SeeAlso: AX=0501h,AX=0505h --------E-310505----------------------------- INT 31 P - DPMI 1.0+ - RESIZE LINEAR MEMORY BLOCK AX = 0505h ESI = memory block handle ECX = new size in bytes (nonzero) EDX = flags bit 0: create committed pages rather than uncommitted pages bit 1: segment descriptor update required ES:EBX -> buffer containing array of WORDs with selectors EDI = number of selectors in array bits 2-31 reserved (0) Return: CF clear if successful EBX = new linear base address ESI = new memory block handle CF set on error AX = error code (8001h,8012h-8014h,8016h,8021h,8023h)(see AX=0000h) Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients the old memory block handle becomes invalid if EDX bit 1 set and the block's base address is changed, DPMI updates all descriptors for selectors in the update buffer which fall within the memory block SeeAlso: AX=0503h,AX=0504h --------E-310506----------------------------- INT 31 P - DPMI 1.0+ - GET PAGE ATTRIBUTES AX = 0506h ESI = memory block handle EBX = offset in memory block of first page ECX = number of pages ES:EDX -> array of WORDs to hold page attributes (see below) Return: CF clear if successful buffer filled CF set on error AX = error code (8001h,8023h,8025h) (see AX=0000h) Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients if EBX is not page-aligned, it will be rounded down SeeAlso: AX=0504h,AX=0507h,INT 21/AX=251Dh,INT 21/AX=EB00h Format of page attribute words: bits 0-2 page type 000 uncommitted 001 committed 010 mapped (see AX=0508h,AX=0509h) other currently unused bit 3 page is read/write rather than read-only bit 4 accessed/dirty bits supplied in bits 5 and 6 bit 5 page has been accessed (only valid if bit 4 set) bit 6 page has been written (only valid if bit 4 set) bits 7-15 reserved (0) --------E-310507----------------------------- INT 31 P - DPMI 1.0+ - MODIFY PAGE ATTRIBUTES AX = 0507h ESI = memory block handle EBX = offset in memory block of first page ECX = number of pages ES:EDX -> array of WORDs with new page attributes (see AX=0506h) Return: CF clear if successful CF set on error AX = error code (8001h,8002h,8013h,8014h,8021h,8023h,8025h) (see AX=0000h) ECX = number of pages which have been set Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients if EBX is not page-aligned, it will be rounded down SeeAlso: AX=0504h,AX=0506h,INT 21/AX=251Eh --------E-310508----------------------------- INT 31 P - DPMI 1.0+ - MAP DEVICE IN MEMORY BLOCK AX = 0508h ESI = memory block handle EBX = page-aligned offset within memory block of page(s) to be mapped ECX = number of pages to map EDX = page-aligned physical address of device Return: CF clear if successful CF set on error AX = error code (8001h,8003h,8023h,8025h) (see AX=0000h) Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients support of this function is optional; hosts are also allowed to support the function for some devices but not others SeeAlso: AX=0504h,AX=0509h,AX=0800h,AX=0801h --------E-310509----------------------------- INT 31 P - DPMI 1.0+ - MAP CONVENTIONAL MEMORY IN MEMORY BLOCK AX = 0509h ESI = memory block handle EBX = page-aligned offset within memory block of page(s) to map ECX = number of pages to map EDX = page-aligned linear address of conventional (below 1M) memory Return: CF clear if successful CF set on error AX = error code (8001h,8003h,8023h,8025h) (see AX=0000h) Notes: only supported by 32-bit DPMI hosts, but may be used by 16-bit clients support of this function is optional SeeAlso: AX=0504h,AX=0508h,AX=0801h --------E-31050A----------------------------- INT 31 P - DPMI 1.0+ - GET MEMORY BLOCK SIZE AND BASE AX = 050AH SI:DI = memory block handle Return: CF clear if successful SI:DI = size in bytes BX:CX = base address CF set on error AX = error code (8023h) (see AX=0000h) SeeAlso: AX=0501h,AX=0504h --------E-31050B----------------------------- INT 31 P - DPMI 1.0+ - GET MEMORY INFORMATION AX = 050Bh ES:(E)DI -> 128-byte buffer for memory information (see below) Return: CF clear if successful CF set on error (DPMI 0.9 only) Note: 16-bit programs use ES:DI, 32-bit programs must use ES:EDI SeeAlso: AX=0500h Format of memory information: Offset Size Description 00h DWORD total allocated bytes of physical memory controlled by host 04h DWORD total allocated bytes of virtual memory controlled by host 08h DWORD total available bytes of virtual memory controlled by host 0Ch DWORD total allocated bytes of virtual memory for curr virtual mach 10h DWORD total available bytes of virtual memory for curr virtual mach 14h DWORD total allocated bytes of virtual memory for current client 18h DWORD total available bytes of virtual memory for current client 1Ch DWORD total locked bytes for current client 20h DWORD maximum locked bytes for current client 24h DWORD highest linear address available to current client 28h DWORD largest available memory block in bytes 2Ch DWORD minimum allocation unit in bytes 30h DWORD allocation alignment unit size in bytes 34h 76 BYTEs reserved (00h) --------E-310600----------------------------- INT 31 P - DPMI 0.9+ - LOCK LINEAR REGION AX = 0600h BX:CX = starting linear address SI:DI = size of region in bytes Return: CF clear if successful CF set on error none of the memory is locked AX = error code (DPMI 1.0+) (8013h,8017h,8025h) (see AX=0000h) Notes: pages at beginning and end will be locked if the region overlaps them may be called multiple times for a given page; the DPMI host keeps a lock count for each page SeeAlso: AX=0004h,AX=0601h,INT 21/AX=251Ah,INT 21/AX=EB06h --------E-310601----------------------------- INT 31 P - DPMI 0.9+ - UNLOCK LINEAR REGION AX = 0601h BX:CX = starting linear address SI:DI = size of region in bytes Return: CF clear if successful CF set on error none of the memory is unlocked AX = error code (DPMI 1.0+) (8002h,8025h) (see AX=0000h) Notes: pages at beginning and end will be unlocked if the region overlaps them memory whose lock count has not reached zero remains locked SeeAlso: AX=0005h,AX=0600h,INT 21/AX=251Bh,INT 21/AX=EB07h --------E-310602----------------------------- INT 31 P - DPMI 0.9+ - MARK REAL MODE REGION AS PAGEABLE AX = 0602h BX:CX = starting linear address SI:DI = size of region in bytes Return: CF clear if successful CF set on error none of the memory is made pageable AX = error code (DPMI 1.0+) (8002h,8025h) (see AX=0000h) Notes: must relock all unlocked real mode memory before terminating process for DPMI 0.9; DPMI 1.0+ automatically relocks real mode memory pages at beginning and end will be unlocked if the region overlaps them pageability of real mode pages is binary, not a count SeeAlso: AX=0600h,AX=0603h --------E-310603----------------------------- INT 31 P - DPMI 0.9+ - RELOCK REAL MODE REGION AX = 0603h BX:CX = starting linear address SI:DI = size of region in bytes Return: CF clear if successful CF set on error none of the memory is relocked AX = error code (DPMI 1.0+) (8002h,8013h,8025h) (see AX=0000h) Notes: pages at beginning and end will be relocked if the region overlaps them pageability of real mode pages is binary, not a count SeeAlso: AX=0602h --------E-310604----------------------------- INT 31 P - DPMI 0.9+ - GET PAGE SIZE AX = 0604h Return: CF clear if successful BX:CX = page size in bytes CF set on error AX = error code (DPMI 1.0+) 8001h unsupported, 16-bit host --------E-310700----------------------------- INT 31 P - DPMI 0.9+ - MARK PAGES AS PAGING CANDIDATES AX = 0700h BX:CX = starting linear page number SI:DI = number of pages to mark as paging candidates Return: ??? Note: although marked as reserved in versions 0.9 and 1.0 of the DPMI specification, this function is called by MS Windows TASKMAN, PROGMAN, and KERNEL SeeAlso: AX=0701h,AX=0702h --------E-310701----------------------------- INT 31 P - DPMI 0.9+ - DISCARD PAGES AX = 0701h BX:CX = starting linear page number SI:DI = number of pages to discard Return: ??? Note: although marked as reserved in versions 0.9 and 1.0 of the DPMI specification, this function is called by MS Windows TASKMAN, PROGMAN, and KERNEL SeeAlso: AX=0700h,AX=0703h --------E-310702----------------------------- INT 31 P - DPMI 0.9+ - MARK PAGE AS DEMAND PAGING CANDIDATE AX = 0702h BX:CX = starting linear address SI:DI = number of bytes to mark as paging candidates Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8025h) (see AX=0000h) Notes: this function is advisory, and does not force immediate paging partial pages will not be discarded SeeAlso: AX=0700h,AX=0703h --------E-310703----------------------------- INT 31 P - DPMI 0.9+ - DISCARD PAGE CONTENTS AX = 0703h BX:CX = starting linear address SI:DI = number of bytes to mark as discarded Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8025h) (see AX=0000h) Notes: this function is advisory, and may be ignored by DPMI implementations partial pages will not be discarded SeeAlso: AX=0701h,AX=0702h --------E-310800----------------------------- INT 31 P - DPMI 0.9+ - PHYSICAL ADDRESS MAPPING AX = 0800h BX:CX = physical address (should be above 1 MB) SI:DI = size in bytes Return: CF clear if successful BX:CX = linear address which maps the requested physical memory CF set on error AX = error code (DPMI 1.0+) (8003h,8021h) (see AX=0000h) Notes: implementations may refuse this call because it can circumvent protects the caller must build an appropriate selector for the memory do not use for memory mapped in the first megabyte SeeAlso: AX=0002h,AX=0508h,AX=0509h,AX=0801h,INT 21/AX=250Ah,INT 21/AX=EB05h --------E-310801----------------------------- INT 31 P - DPMI 1.0+ - FREE PHYSICAL ADDRESS MAPPING AX = 0801h BX:CX = linear address returned by AX=0800h Return: CF clear if successful CF set on error AX = error code (8025h) (see AX=0000h) Note: should be called at end of access to device mapped with AX=0800h SeeAlso: AX=0508h,AX=0509h,AX=0800h,INT 21/AX=EB03h --------E-310900----------------------------- INT 31 P - DPMI 0.9+ - GET AND DISABLE VIRTUAL INTERRUPT STATE AX = 0900h Return: CF clear virtual interrupts disabled AL = 00h if previously disabled = 01h if previously enabled AH preserved Notes: the previous state may be restored simply by executing another INT 31 a CLI instruction may be used if the previous state is unimportant, but should be assumed to be very slow due to trapping by the host SeeAlso: AX=0901h,AX=0902h --------E-310901----------------------------- INT 31 P - DPMI 0.9+ - GET AND ENABLE VIRTUAL INTERRUPT STATE AX = 0901h Return: CF clear virtual interrupts enabled AL = 00h if previously disabled = 01h if previously enabled AH preserved Notes: the previous state may be restored simply by executing another INT 31 a STI instruction may be used if the previous state is unimportant, but should be assumed to be very slow due to trapping by the host SeeAlso: AX=0900h,AX=0902h --------E-310902----------------------------- INT 31 P - DPMI 0.9+ - GET VIRTUAL INTERRUPT STATE AX = 0902h Return: CF clear AL = 00h if disabled = 01h if enabled Note: should be used rather than PUSHF because that instruction yields the physical interrupt state rather than the per-client virtualized interrupt flag SeeAlso: AX=0900h,AX=0901h --------E-310A00----------------------------- INT 31 P - DPMI 0.9+ - GET VENDOR SPECIFIC API ENTRY POINT AX = 0A00h DS:SI / DS:ESI -> case-sensitive ASCIZ vendor name or identifier Return: CF clear if successful ES:DI / ES:EDI -> FAR extended API entry point DS, FS, GS, EAX, EBX, ECX, EDX, ESI, EBP destroyed CF set on error AX = error code (DPMI 1.0+) (8001h) (see AX=0000h) Notes: extended API parameters are vendor-specific DPMI 1.0+ supports this function solely for backward compatibility; use INT 2F/AX=168Ah instead SeeAlso: INT 2F/AX=168Ah --------E-310B00----------------------------- INT 31 P - DPMI 0.9+ - SET DEBUG WATCHPOINT AX = 0B00h BX:CX = linear address DL = size (1,2,4 bytes) DH = type (00h execute, 01h write, 02h read/write) Return: CF clear if successful BX = watchpoint handle CF set on error AX = error code (DPMI 1.0+) (8016h,8021h,8025h) (see AX=0000h) SeeAlso: AX=0212h,AX=0601h --------E-310B01----------------------------- INT 31 P - DPMI 0.9+ - CLEAR DEBUG WATCHPOINT AX = 0B01h BX = watchpoint handle Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8023h) (see AX=0000h) Note: the watchpoint handle is freed SeeAlso: AX=0B00h --------E-310B02----------------------------- INT 31 P - DPMI 0.9+ - GET STATE OF DEBUG WATCHPOINT AX = 0B02h BX = watchpoint handle Return: CF clear if successful AX = status flags bit 0: watch point has been executed since AX=0B00h or AX=0B03h CF set on error AX = error code (DPMI 1.0+) (8023h) (see AX=0000h) SeeAlso: AX=0B00h,AX=0B03h --------E-310B03----------------------------- INT 31 P - DPMI 0.9+ - RESET DEBUG WATCHPOINT AX = 0B03h BX = watchpoint handle Return: CF clear if successful CF set on error AX = error code (DPMI 1.0+) (8023h) (see AX=0000h) SeeAlso: AX=0B02h --------E-310C00----------------------------- INT 31 P - DPMI 1.0+ - INSTALL RESIDENT HANDLER INIT CALLBACK AX = 0C00h ES:(E)DI -> resident service provider structure (see below) Return: CF clear if successful CF set on error AX = error code (8015h,8021h,8025h) (see AX=0000h) Note: calling this function declares an intent to provide resident protected mode services after terminating with AX=0C01h SeeAlso: AX=0303h,AX=0C01h Format of resident service provider structure: Offset Size Description 00h QWORD descriptor for 16-bit data segment 08h QWORD descriptor for 16-bit code segment (zeros if not supported) 10h WORD offset of 16-bit callback procedure 12h 2 BYTEs reserved 14h QWORD descriptor for 32-bit data segment 1Ch QWORD descriptor for 32-bit code segment (zeros if not supported) 24h DWORD offset of 32-bit callback procedure --------E-310C01----------------------------- INT 31 P - DPMI 1.0+ - TERMINATE AND STAY RESIDENT AX = 0C01h BL = return code DX = number of paragraphs of DOS memory to reserve (0 or >= 6) Return: never Notes: should only be used if the program will only provide services to other DPMI programs any protected mode memory remains allocated to the program unless explicitly freed before this call must first call AX=0C00h or program will simply be terminated SeeAlso: AX=0C00h,INT 21/AH=31h --------E-310D00----------------------------- INT 31 P - DPMI 1.0+ - ALLOCATE SHARED MEMORY AX = 0D00h ES:(E)DI -> shared memory allocation request structure (see below) Return: CF clear if successful request structure updated CF set on error AX = error code (8012h,8013h,8014h,8016h,8021h) (see AX=0000h) Note: first 16 bytes of memory block will be initialized to zeros on the first allocation SeeAlso: AX=0501h,AX=0D01h,AX=0D02h Format of shared memory allocation request structure: Offset Size Description 00h DWORD requested length of shared memory block in bytes 04h DWORD (return) allocated length of block 08h DWORD (return) shared memory handle 0Ch DWORD (return) linear address of memory block 10h 6 BYTEs selector:offset32 of ASCIZ name for memory block (name max 128 bytes) 16h 2 BYTEs reserved 18h 4 BYTEs reserved (00h) --------E-310D01----------------------------- INT 31 P - DPMI 1.0+ - FREE SHARED MEMORY AX = 0D01h SI:DI = shared memory block handle Return: CF clear if successful CF set on error AX = error code (8023h) (see AX=0000h) Notes: handle becomes invalid after this call DPMI maintains separate global and virtual machine use counts for each shared memory block; when the global use counts reaches zero, the block is finally destroyed SeeAlso: AX=0502h,AX=0D00h --------E-310D02----------------------------- INT 31 P - DPMI 1.0+ - SERIALIZE SHARED MEMORY AX = 0D02h SI:DI = shared memory block handle DX = flags bit 0: return immediately rather than suspending if serialization unavailable bit 1: shared rather than exclusive serialization bits 2-15 reserved (0) Return: CF clear if successful CF set on error AX = error code (8004h,8005h,8017h-8019h,8023h) (see AX=0000h) Notes: an exclusive serialization blocks any other serialization attempts for the same block by another virtual machine; a shared serialization blocks attempts at exclusive serialization by another virtual machine hosts are not required to detect deadlock a client's interrupt handler can cancel a serialization call which caused it to block by calling AX=0D03h SeeAlso: AX=0D00h,AX=0D03h --------E-310D03----------------------------- INT 31 P - DPMI 1.0+ - FREE SERIALIZATION ON SHARED MEMORY AX = 0D03h SI:DI = shared memory block handle DX = flags bit 0: release shared serialization rather than exclusive serialztn bit 1: free pending serialization bits 2-15 reserved (0) Return: CF clear if successful CF set on error AX = error code (8002h,8023h) (see AX=0000h) SeeAlso: AX=0D00h,AX=0D02h --------E-310E00----------------------------- INT 31 P - DPMI 1.0+ - GET COPROCESSOR STATUS AX = 0E00h Return: CF clear AX = coprocessor status bit 0: numeric coprocessor enabled for current client bit 1: client is emulating coprocessor bit 2: numeric coprocessor is present bit 3: host is emulating coprocessor instructions bits 4-7: coprocessor type 0000 none 0010 80287 0011 80387 0100 80486 with numeric coprocessor other reserved bits 8-15 not used Note: supported by 386MAX v6.01, which otherwise only supports DPMI 0.9 SeeAlso: AX=0E01h --------E-310E01----------------------------- INT 31 P - DPMI 1.0+ - SET EMULATION AX = 0E01h BX = coprocessor flag bits bit 0: enable numeric coprocessor for current client bit 1: client will emulate coprocessor bits 2-15 not used Return: CF clear if successful CF set on error AX = error code (8026h) (see AX=0000h) Note: supported by 386MAX v6.01, which otherwise only supports DPMI 0.9 SeeAlso: AX=0E00h ----------3157------------------------------- INT 31 - Netroom3 DPMI.EXE v3.00 - ??? AH = 57h AL = subfunction (at least 02h,03h,04h,05h,07h,08h,09h,0Ah) ??? Return: ??? SeeAlso: INT 2C/AX=0000h"RM386" ----------315702----------------------------- INT 31 - Netroom3 DPMI.EXE v3.00 - SWITCH TO PROTECTED MODE AX = 5702h DX = PSP segment of caller STACK: WORD ??? WORD flags (bit 0 set if 32-bit program) Return: as for DPMI mode-switch entry point (see INT 2F/AX=1687h) Note: this function is called by the real-mode DPMI mode-switch entry point SeeAlso: INT 2F/AX=1687h --------v-32--------------------------------- INT 32 - VIRUS - reportedly used by "Tiny" Viruses SeeAlso: INT 21/AX=FFFFh"VIRUS",INT 31"VIRUS",INT 44"VIRUS" --------v-32--------------------------------- INT 32 - VIRUS - "Plovdiv 1.3"/"Damage 1.3" - ORIGINAL INT 21h VECTOR SeeAlso: INT 31"VIRUS",INT 9E"VIRUS" --------M-330000----------------------------- INT 33 - MS MOUSE - RESET DRIVER AND READ STATUS AX = 0000h Return: AX = status 0000h hardware/driver not installed FFFFh hardware/driver installed BX = number of buttons 0000h other than two 0002h two buttons (many drivers) 0003h Mouse Systems/Logitech three-button mouse FFFFh two buttons Notes: to use mouse on a Hercules-compatible monographics card in graphics mode, you must first set 0040h:0049h to 6 for page 0 or 5 for page 1, and then call this function. Logitech drivers v5.01 and v6.00 reportedly do not correctly use Hercules graphics in dual-monitor systems, while version 4.10 does. the Logitech mouse driver contains the signature string "LOGITECH" three bytes past the interrupt handler; many of the Logitech mouse utilities check for this signature. SeeAlso: AX=0011h,AX=0021h,AX=002Fh,INT 62/AX=007Ah,INT 74 --------M-330001----------------------------- INT 33 - MS MOUSE - SHOW MOUSE CURSOR AX = 0001h SeeAlso: AX=0002h,INT 16/AX=FFFEh,INT 62/AX=007Bh --------M-330002----------------------------- INT 33 - MS MOUSE - HIDE MOUSE CURSOR AX = 0002h Note: multiple calls to hide the cursor will require multiple calls to function 01h to unhide it. SeeAlso: AX=0001h,AX=0010h,INT 16/AX=FFFFh,INT 62/AX=007Bh --------M-330003----------------------------- INT 33 - MS MOUSE - RETURN POSITION AND BUTTON STATUS AX = 0003h Return: BX = button status bit 0 left button pressed if 1 bit 1 right button pressed if 1 bit 2 middle button pressed if 1 (Mouse Systems/Logitech mouse) CX = column DX = row SeeAlso: AX=0004h,AX=000Bh,INT 2F/AX=D000h"ZWmous" --------M-330004----------------------------- INT 33 - MS MOUSE - POSITION MOUSE CURSOR AX = 0004h CX = column DX = row Note: the row and column are truncated to the next lower multiple of the cell size; however, some versions of the Microsoft documentation incorrectly state that the coordinates are rounded SeeAlso: AX=0003h,INT 62/AX=0081h --------M-330005----------------------------- INT 33 - MS MOUSE - RETURN BUTTON PRESS DATA AX = 0005h BX = button 0000h left 0001h right 0002h middle (Mouse Systems/Logitech mouse) Return: AX = button states bit 0 left button pressed if 1 bit 1 right button pressed if 1 bit 2 middle button pressed if 1 (Mouse Systems/Logitech mouse) BX = number of times specified button has been pressed since last call CX = column at time specified button was last pressed DX = row at time specified button was last pressed SeeAlso: AX=0006h,INT 62/AX=007Ch --------M-330006----------------------------- INT 33 - MS MOUSE - RETURN BUTTON RELEASE DATA AX = 0006h BX = button 0000h left 0001h right 0002h middle (Mouse Systems/Logitech mouse) Return: AX = button states bit 0 left button pressed if 1 bit 1 right button pressed if 1 bit 2 middle button pressed if 1 (Mouse Systems/Logitech mouse) BX = number of times specified button has been released since last call CX = column at time specified button was last released DX = row at time specified button was last released SeeAlso: AX=0005h,INT 62/AX=007Ch --------M-330007----------------------------- INT 33 - MS MOUSE - DEFINE HORIZONTAL CURSOR RANGE AX = 0007h CX = minimum column DX = maximum column SeeAlso: AX=0008h,AX=0010h,AX=0031h,INT 62/AX=0080h --------M-330008----------------------------- INT 33 - MS MOUSE - DEFINE VERTICAL CURSOR RANGE AX = 0008h CX = minimum row DX = maximum row SeeAlso: AX=0007h,AX=0010h,AX=0031h,INT 62/AX=0080h --------M-330009----------------------------- INT 33 - MS MOUSE - DEFINE GRAPHICS CURSOR AX = 0009h BX = column of cursor hot spot in bitmap (-16 to 16) CX = row of cursor hot spot (-16 to 16) ES:DX -> bitmap 16 words screen mask 16 words cursor mask each word defines the sixteen pixels of a row, low bit rightmost SeeAlso: AX=000Ah,AX=0012h,AX=002Ah,INT 62/AX=007Fh --------M-33000A----------------------------- INT 33 - MS MOUSE - DEFINE TEXT CURSOR AX = 000Ah BX = hardware/software text cursor 0000h software CX = screen mask DX = cursor mask 0001h hardware CX = start scan line DX = end scan line Note: when the software cursor is selected, the char/attribute data at the current screen position is ANDed with the screen mask and then XORed with the cursor mask SeeAlso: AX=0009h,INT 62/AX=007Eh --------M-33000B----------------------------- INT 33 - MS MOUSE - READ MOTION COUNTERS AX = 000Bh Return: CX = number of mickeys mouse moved horizontally since last call DX = number of mickeys mouse moved vertically Notes: a mickey is the smallest increment the mouse can sense positive values indicate down/right SeeAlso: AX=0003h,AX=001Bh,AX=0027h --------M-33000C----------------------------- INT 33 - MS MOUSE - DEFINE INTERRUPT SUBROUTINE PARAMETERS AX = 000Ch CX = call mask bit 0 call if mouse moves bit 1 call if left button pressed bit 2 call if left button released bit 3 call if right button pressed bit 4 call if right button released bit 5 call if middle button pressed (Mouse Systems/Logitech mouse) bit 6 call if middle button released (Mouse Sys/Logitech mouse) ES:DX -> FAR routine Notes: when the subroutine is called, it is passed the following values: AX = condition mask (same bit assignments as call mask) BX = button state CX = cursor column DX = cursor row SI = horizontal mickey count DI = vertical mickey count some versions of the Microsoft documentation incorrectly state that CX bit 0 means call if mouse cursor moves, and swap the meanings of SI and DI SeeAlso: AX=0018h --------M-33000D----------------------------- INT 33 - MS MOUSE - LIGHT PEN EMULATION ON AX = 000Dh SeeAlso: AX=000Eh,INT 10/AH=04h --------M-33000E----------------------------- INT 33 - MS MOUSE - LIGHT PEN EMULATION OFF AX = 000Eh SeeAlso: AX=000Dh --------M-33000F----------------------------- INT 33 - MS MOUSE - DEFINE MICKEY/PIXEL RATIO AX = 000Fh CX = number of mickeys per 8 pixels horizontally (default 8) DX = number of mickeys per 8 pixels vertically (default 16) SeeAlso: AX=0013h,AX=001Ah,INT 62/AX=0082h --------M-330010----------------------------- INT 33 - MS MOUSE - DEFINE SCREEN REGION FOR UPDATING AX = 0010h CX,DX = X,Y coordinates of upper left corner SI,DI = X,Y coordinates of lower right corner Note: mouse cursor is hidden in the specified region, and needs to be explicitly turned on again SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"Genius MOUSE",AX=0031h --------M-330010----------------------------- INT 33 - Genius MOUSE - DEFINE SCREEN REGION FOR UPDATING AX = 0010h ES:DX -> update region list (see below) Notes: mouse cursor is hidden in the specified region, and needs to be explicitly turned on again this version of the call is described in an August 1988 version of the Genius Mouse programmer's reference; it has been changed to conform to the Microsoft version shown above by version 9.06 (and possibly earlier versions) SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"MS MOUSE" Format of update region list: Offset Size Description 00h WORD left-most column 02h WORD top-most row 04h WORD right-most column 06h WORD bottom-most row --------M-330011----------------------------- INT 33 - Genius Mouse 9.06 - GET NUMBER OF BUTTONS AX = 0011h Return: AX = FFFFh BX = number of buttons SeeAlso: AX=0000h --------M-330012----------------------------- INT 33 - MS MOUSE - SET LARGE GRAPHICS CURSOR BLOCK AX = 0012h BH = cursor width in words CH = rows in cursor BL = horizontal hot spot (-16 to 16) CL = vertical hot spot (-16 to 16) ES:DX -> bit map of screen and cursor maps Return: AX = FFFFh if successful SeeAlso: AX=0009h,AX=002Ah,AX=0035h --------M-330013----------------------------- INT 33 - MS MOUSE - DEFINE DOUBLE-SPEED THRESHOLD AX = 0013h DX = threshold speed in mickeys/second, 0000h = default of 64/second Note: if speed exceeds threshold, the cursor's on-screen motion is doubled SeeAlso: AX=000Fh,AX=001Bh,AX=002Ch --------M-330014----------------------------- INT 33 - MS MOUSE - EXCHANGE INTERRUPT SUBROUTINES AX = 0014h CX = call mask (see AX=000Ch) ES:DX -> FAR routine Return: CX = call mask of previous interrupt routine ES:DX = FAR address of previous interrupt routine SeeAlso: AX=000Ch,AX=0018h --------M-330015----------------------------- INT 33 - MS MOUSE - RETURN DRIVER STORAGE REQUIREMENTS AX = 0015h Return: BX = size of buffer needed to store driver state SeeAlso: AX=0016h,AX=0017h,AX=0042h --------M-330016----------------------------- INT 33 - MS MOUSE - SAVE DRIVER STATE AX = 0016h BX = size of buffer (see AX=0015h) ES:DX -> buffer for driver state Note: although not documented, many drivers appear to require BX on input SeeAlso: AX=0015h,AX=0017h --------M-330017----------------------------- INT 33 - MS MOUSE - RESTORE DRIVER STATE AX = 0017h BX = size of buffer (see AX=0015h) ES:DX -> buffer containing saved state Notes: although not documented, many drivers appear to require BX on input some mouse drivers range-check the values in the saved state based on the current video mode; thus, the video mode should be restored before the mouse driver's state is restored SeeAlso: AX=0015h,AX=0016h --------M-330018----------------------------- INT 33 - MS MOUSE - SET ALTERNATE MOUSE USER HANDLER AX = 0018h CX = call mask (see below) ES:DX -> FAR routine Return: AX = 0018h if successful = FFFFh on error Notes: when the subroutine is called, it is passed the following values: AX = condition mask (same bit assignments as call mask) BX = button state CX = cursor column DX = cursor row SI = horizontal mickey count DI = vertical mickey count up to three handlers can be defined by separate calls to this function some versions of the documentation erroneously reverse the order of the bits in the call mask SeeAlso: AX=000Ch,AX=0014h,AX=0019h Bitfields for call mask: bit 0 call if mouse moves bit 1 call if left button pressed bit 2 call if left button released bit 3 call if right button pressed bit 4 call if right button released bit 5 call if shift button pressed during event bit 6 call if ctrl key pressed during event bit 7 call if alt key pressed during event --------M-330019----------------------------- INT 33 - MS MOUSE - RETURN USER ALTERNATE INTERRUPT VECTOR AX = 0019h CX = call mask (see AX=0018h) Return: BX:DX = user interrupt vector CX = call mask (0000h if not found) Note: attempts to find a user event handler (defined by function 18h) whose call mask matches CX SeeAlso: AX=0018h --------M-33001A----------------------------- INT 33 - MS MOUSE - SET MOUSE SENSITIVITY AX = 001Ah BX = horizontal speed \ CX = vertical speed / (see AX=000Fh) DX = double speed threshold (see AX=0013h) SeeAlso: AX=0013h,AX=001Bh,INT 62/AX=0082h --------M-33001B----------------------------- INT 33 - MS MOUSE - RETURN MOUSE SENSITIVITY AX = 001Bh Return: BX = horizontal speed CX = vertical speed DX = double speed threshold SeeAlso: AX=000Bh,AX=001Ah --------M-33001C----------------------------- INT 33 - MS MOUSE - SET INTERRUPT RATE AX = 001Ch BX = rate 00h no interrupts allowed 01h 30 per second 02h 50 per second 03h 100 per second 04h 200 per second Notes: only available on InPort mouse values greater than 4 may cause unpredictable driver behavior --------M-33001D----------------------------- INT 33 - MS MOUSE - DEFINE DISPLAY PAGE NUMBER AX = 001Dh BX = display page number Note: the cursor will be displayed on the specified page SeeAlso: AX=001Eh --------M-33001E----------------------------- INT 33 - MS MOUSE - RETURN DISPLAY PAGE NUMBER AX = 001Eh Return: BX = display page number SeeAlso: AX=001Dh --------M-33001F----------------------------- INT 33 - MS MOUSE - DISABLE MOUSE DRIVER AX = 001Fh Return: AX = 001Fh unsuccessful FFFFh successful ES:BX = vector for INT 33 before mouse driver was first installed Notes: restores vectors for INT 10 and INT 71 (8086) or INT 74 (286/386) if you restore INT 33 to ES:BX, driver will be completely disabled many drivers return AX=001Fh even though the driver has been disabled SeeAlso: AX=0020h --------M-330020----------------------------- INT 33 - MS MOUSE - ENABLE MOUSE DRIVER AX = 0020h Return: AX = 0020h unsuccessful (or driver not installed) FFFFh successful Notes: restores vectors for INT 10h and INT 71h (8086) or INT 74h (286/386) which were removed by function 1Fh many drivers return AX=0020h even though the driver has been enabled SeeAlso: AX=001Fh --------M-330021----------------------------- INT 33 - MS MOUSE - SOFTWARE RESET AX = 0021h Return: AX = FFFFh if mouse driver installed BX = number of buttons (FFFFh = two buttons) 0021h if mouse driver not installed Note: identical to funtion 00h, but does not reset the mouse SeeAlso: AX=0000h --------M-330022----------------------------- INT 33 - MS MOUSE - SET LANGUAGE FOR MESSAGES AX = 0022h BX = language (see below) Note: only available on international versions of the driver; US versions ignore this call SeeAlso: AX=0023h Values for language: 00h English 01h French 02h Dutch 03h German 04h Swedish 05h Finnish 06h Spanish 07h Portugese 08h Italian --------M-330023----------------------------- INT 33 - MS MOUSE - GET LANGUAGE FOR MESSAGES AX = 0023h Return: BX = language (see AX=0022h) Note: the US version of the driver always returns zero SeeAlso: AX=0022h --------M-330024----------------------------- INT 33 - MS MOUSE v6.26+ - GET SOFTWARE VERSION, MOUSE TYPE, AND IRQ NUMBER AX = 0024h Return: AX = FFFFh on error otherwise, BH = major version BL = minor version CH = type (1=bus, 2=serial, 3=InPort, 4=PS/2, 5=HP) CL = interrupt (0=PS/2, 2=IRQ2, 3=IRQ3,...,7=IRQ7) SeeAlso: AX=004Dh,AX=006Dh --------M-330025----------------------------- INT 33 - MS MOUSE v6.26+ - GET GENERAL DRIVER INFORMATION AX = 0025h Return: AX = general information bit 15: driver loaded as device driver rather than TSR bit 14: driver is newer integrated type bits 13,12: current cursor type 00 software text cursor 01 hardware text cursor 1X graphics cursor bits 11-8: interrupt rate (see AX=001Ch) bits 7-0: count of currently-active Mouse Display Drivers (MDD), the newer integrated driver type BX = cursor lock flag for OS/2 to prevent reentrancy problems CX = mouse code active flag (for OS/2) DX = mouse driver busy flag (for OS/2) --------M-330026----------------------------- INT 33 - MS MOUSE v6.26+ - GET MAXIMUM VIRTUAL COORDINATES AX = 0026h Return: BX = mouse-disabled flag CX = maximum virtual X (for current video mode) DX = maximum virtual Y SeeAlso: AX=0031h --------M-330026----------------------------- INT 33 - Genius Mouse 9.06 - ??? AX = 0026h Return: CX = 0204h if CX was 0105h on entry, else unchanged --------M-330027----------------------------- INT 33 - MS MOUSE v7.01+ - GET SCREEN/CURSOR MASKS AND MICKEY COUNTS AX = 0027h Return: AX = screen-mask value (or hardware cursor scan-line start for v7.02+) BX = cursor-mask value (or hardware cursor scan-line stop for v7.02+) CX = horizontal mickeys moved since last call DX = vertical mickeys moved since last call SeeAlso: AX=000Bh --------M-330028----------------------------- INT 33 - MS MOUSE v7.0+ - SET VIDEO MODE AX = 0028h CX = new video mode (call is NOP if 0000h) DH = Y font size (00h = default) DL = X font size (00h = default) Return: CL = status (00h = successful) Note: DX is ignored unless the selected video mode supports font size control SeeAlso: AX=0029h,INT 10/AH=00h --------M-330029----------------------------- INT 33 - MS MOUSE v7.0+ - ENUMERATE VIDEO MODES AX = 0029h CX = previous video mode 0000h get first supported video mode other get next supported mode after mode CX Return: CX = first/next video mode (0000h = no more video modes) DS:DX -> description of video mode or 0000h:0000h if none Notes: the enumerated video modes may be in any order and may repeat the description string (if available) is terminated by '$' followed by a NUL byte SeeAlso: AX=0028h --------M-33002A----------------------------- INT 33 - MS MOUSE v7.02+ - GET CURSOR HOT SPOT AX = 002Ah Return: AX = internal counter controlling cursor visibility BX = cursor hot spot column CX = cursor hot spot row DX = mouse type (00h none, 01h bus, 02h serial, 03h InPort, 04h IBM, 05h Hewlett-Packard) Note: the hot spot location is relative to the upper left corner of the cursor block and may range from -128 to +127 both horizontally and vertically SeeAlso: AX=0009h,AX=0012h,AX=0035h --------M-33002B----------------------------- INT 33 - MS MOUSE v7.0+ - LOAD ACCELERATION PROFILES AX = 002Bh BX = active acceleration profile 0001h-0004h or FFFFh to restore default curves ES:SI -> buffer containing acceleration profile data (see below) Return: AX = success flag SeeAlso: AX=002Ch,AX=002Dh,AX=0033h Format of acceleration profile data: Offset Size Description 00h BYTE length of acceleration profile 1 01h BYTE length of acceleration profile 2 02h BYTE length of acceleration profile 3 03h BYTE length of acceleration profile 4 04h 32 BYTEs threshold speeds for acceleration profile 1 24h 32 BYTEs threshold speeds for acceleration profile 2 44h 32 BYTEs threshold speeds for acceleration profile 3 64h 32 BYTEs threshold speeds for acceleration profile 4 84h 32 BYTEs speedup factor for acceleration profile 1 (10h = 1.0, 14h = 1.25, 20h = 2.0, etc) A4h 32 BYTEs speedup factor for acceleration profile 2 (10h = 1.0, 14h = 1.25, 20h = 2.0, etc) C4h 32 BYTEs speedup factor for acceleration profile 3 (10h = 1.0, 14h = 1.25, 20h = 2.0, etc) E4h 32 BYTEs speedup factor for acceleration profile 4 (10h = 1.0, 14h = 1.25, 20h = 2.0, etc) 104h 16 BYTEs name of acceleration profile 1 (blank-padded) 114h 16 BYTEs name of acceleration profile 2 (blank-padded) 124h 16 BYTEs name of acceleration profile 3 (blank-padded) 134h 16 BYTEs name of acceleration profile 4 (blank-padded) Note: unused bytes in the threshold speed fields are filled with 7Fh and unused bytes in the speedup factor fields are filled with 10h --------M-33002C----------------------------- INT 33 - MS MOUSE v7.0+ - GET ACCELERATION PROFILES AX = 002Ch Return: AX = status (0000h success) BX = currently-active acceleration profile ES:SI -> acceleration profile data (see AX=002Bh) SeeAlso: AX=002Bh,AX=002Dh,AX=0033h --------M-33002D----------------------------- INT 33 - MS MOUSE v7.0+ - SELECT ACCELERATION PROFILE AX = 002Dh BX = acceleration level 0001h-0004h to set profile, or FFFFh to get current profile Return: AX = status 0000h successful ES:SI -> 16-byte blank-padded name of acceleration profile FFFEh invalid acceleration curve number ES:SI destroyed BX = active acceleration curve number SeeAlso: AX=0013h,AX=002Bh,AX=002Ch,AX=002Eh --------M-33002E----------------------------- INT 33 - MS MOUSE v8.10+ - SET ACCELERATION PROFILE NAMES AX = 002Eh BL = flag (if nonzero, fill ES:SI buffer with default names on return) ES:SI -> 64-byte buffer for profile names (16 bytes per name) Return: AX = status (0000h success) ES:SI buffer filled with default names if BL nonzero on entry Note: not supported by Logitech driver v6.10 SeeAlso: AX=002Ch,AX=002Dh,AX=012Eh,AX=022Eh --------M-33002F----------------------------- INT 33 - MS MOUSE v7.02+ - MOUSE HARDWARE RESET AX = 002Fh Return: AX = status Note: invoked by mouse driver v8.20 on being called with INT 2F/AX=530Bh SeeAlso: INT 2F/AH=53h --------M-330030----------------------------- INT 33 - MS MOUSE v7.04+ - GET/SET BallPoint INFORMATION AX = 0030h CX = command 0000h get status of BallPoint device other set rotation angle and masks BX = rotation angle (-32768 to 32767 degrees) CH = primary button mask CL = secondary button mask Return: AX = button status (FFFFh if no BallPoint) bit 5: button 1 bit 4: button 2 bit 3: button 3 bit 2: button 4 other: zero BX = rotation angle (0-360 degrees) CH = primary button mask CL = secondary button mask --------M-330031----------------------------- INT 33 - MS MOUSE v7.05+ - GET CURRENT MINIMUM/MAXIMUM VIRTUAL COORDINATES AX = 0031h Return: AX = virtual X minimum BX = virtual Y minimum CX = virtual X maximum DX = virtual Y maximum Note: the minimum and maximum values are those set by AX=0007h and AX=0008h; the default is minimum = 0 and maximum = absolute maximum (see AX=0026h) SeeAlso: AX=0007h,AX=0008h,AX=0010h,AX=0026h --------M-330032----------------------------- INT 33 - MS MOUSE v7.05+ - GET ACTIVE ADVANCED FUNCTIONS AX = 0032h Return: AX = active function flags (FFFFh for v8.10) bit 15: function 0025h supported bit 14: function 0026h supported ... bit 0: function 0034h supported BX = ??? (0000h) officially unused CX = ??? (E000h) officially unused DX = ??? (0000h) officially unused --------M-330033----------------------------- INT 33 - MS MOUSE v7.05+ - GET SWITCH SETTINGS AND ACCELERATION PROFILE DATA AX = 0033h CX = size of buffer 0000h get required buffer size Return: AX = 0000h CX = required size (0154h for Logitech v6.10, 0159h for MS v8.10-8.20) other ES:DX -> buffer of CX bytes Return: AX = 0000h CX = number of bytes returned ES:DX buffer filled (see below) SeeAlso: AX=002Bh Format of data buffer: Offset Size Description 00h BYTE mouse type 01h BYTE current language 02h BYTE horizontal sensitivity (00h-64h) 03h BYTE vertical sensitivity (00h-64h) 04h BYTE double-speed threshold (00h-64h) 05h BYTE ballistic curve (01h-04h) 06h BYTE interrupt rate (01h-04h) 07h BYTE cursor override mask 08h BYTE laptop adjustment 09h BYTE memory type (00h-02h) 0Ah BYTE SuperVGA support (00h,01h) 0Bh BYTE rotation angle 0Ch BYTE ??? 0Dh BYTE primary button (01h-04h) 0Eh BYTE secondary button (01h-04h) 0Fh BYTE click lock enabled (00h,01h) 10h 324 BYTEs acceleration profile data (see AX=002Bh) 154h 5 BYTEs ??? (Microsoft driver, but not Logitech) --------M-330034----------------------------- INT 33 - MS MOUSE v8.0+ - GET INITIALIZATION FILE AX = 0034h Return: AX = status (0000h successful) ES:DX -> ASCIZ initialization (.INI) file name --------M-330035----------------------------- INT 33 - MS MOUSE v8.10+ - LCD SCREEN LARGE POINTER SUPPORT AX = 0035h BX = function FFFFh get current settings Return: AX = 0000h BH = style (see below) BL = size (see below) CH = threshold CL = active flag (00h disabled, 01h enabled) DX = delay other BH = style (00h normal, 01h reverse, 02h transparent) BL = size (00h small "1", 01h medium "1.5", 02h large "2") CH = threshold (00h-64h) CL = active flag (00h disable size change, 01h enable) DX = delay (0000h-0064h) Return: AX = 0000h Note: not supported by Logitech driver v6.10 SeeAlso: AX=0012h,AX=002Ah --------M-330042----------------------------- INT 33 - PCMOUSE - GET MSMOUSE STORAGE REQUIREMENTS AX = 0042h Return: AX = FFFFh successful BX = buffer size in bytes for functions 50h and 52h = 0000h MSMOUSE not installed = 0042h functions 42h, 50h, and 52h not supported Note: this function is also supported by the Genius Mouse 9.06 driver SeeAlso: AX=0015h,AX=0050h,AX=0052h --------M-330043----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - CONFIGURE MOUSE??? AX = 0043h CX:BX -> ??? buffer (see below) DL = ??? Return: ??? Notes: also calls routines for INT 33/AX=0053h and INT 33/AX=004Fh this function is also supported by the Genius Mouse 9.06 driver Format of buffer: Offset Size Description 00h WORD I/O port address 02h BYTE ??? 03h BYTE interrupt number 04h BYTE interrupt mask for interrupt controller 05h 5 BYTEs ??? --------M-330044CXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - TOGGLE ??? AX = 0044h CX = CDEFh Return: AX = new state of ??? Note: this function is also supported by the Genius Mouse 9.06 driver SeeAlso: AX=0045h --------M-330045CXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - TOGGLE ??? AX = 0045h CX = CDEFh Return: AX = new state of ??? Note: this function is also supported by the Genius Mouse 9.06 driver SeeAlso: AX=0044h --------M-330047----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - SET BUTTON ASSIGNMENTS AX = 0047h ES:BX -> button assignments (3 bytes, combinations of "L", "M", "R") Return: ??? Note: also supported by Genius Mouse 9.06 driver SeeAlso: AX=0067h --------M-330048BXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - GET ??? AX = 0048h BX = CDEFh Return: CX = ??? BH = ??? BL = ??? (if 50h, driver is using PS/2 pointing device BIOS interface) Note: also supported by Genius Mouse 9.06 driver --------M-33004B----------------------------- INT 33 - Z-NIX MOUSE DRIVER v7.04d - INSTALLATION CHECK AX = 004Bh Return: ES:DI -> signature/description string if installed Note: the signature string in v7.04d is "Z-NIX;BUS,AUX,Serial 3-byte and 5-byte Mouse Driver;ZMOUSE;v7.04d" --------M-33004CBXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - SET ??? FLAG AX = 004Ch BX = CDEFh Note: also supported by Genius Mouse 9.06 SeeAlso: AX=006Ch --------M-33004D----------------------------- INT 33 - MS MOUSE - RETURN POINTER TO COPYRIGHT STRING AX = 004Dh Return: ES:DI -> copyright message "*** This is Copyright 1983 Microsoft" Notes: also supported by Logitech, Kraft, Genius Mouse, and Mouse Systems mouse drivers in the Genius Mouse 9.06 driver, the ASCIZ signature "KYE" immediately follows the above copyright message (KYE Corp. manufactures the driver) SeeAlso: AX=0024h,AX=006Dh --------M-33004F----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ENABLE MOUSE AX = 004Fh Return: nothing Note: also supported by Genius Mouse 9.06 SeeAlso: AX=0043h,AX=0053h --------M-330050----------------------------- INT 33 - PCMOUSE - SAVE MSMOUSE STATE AX = 0050h BX = buffer size (ignored by some driver versions) ES:DX -> buffer Return: AX = FFFFh if successful Notes: the buffer must be large enough to hold the entire state, or following data will be overwritten by state data in versions which ignore BX; use INT 33/AX=0042h to get the required size this function is also supported by the Genius Mouse 9.06 driver SeeAlso: AX=0042h,AX=0052h --------M-330052----------------------------- INT 33 - PCMOUSE - RESTORE MSMOUSE STATE AX = 0052h BX = buffer size (ignored by some driver versions) ES:DX -> buffer Return: AX = FFFFh if successful Note: also supported by Genius Mouse 9.06 driver SeeAlso: AX=0050h --------M-330053----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - DISABLE MOUSE AX = 0053h Return: nothing Note: also supported by Genius Mouse 9.06 SeeAlso: AX=0043h,AX=004Fh --------M-330054CXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - SELECT ULTRARES ACCELERATION LEVEL AX = 0054h CX = CDEFh BX = ??? (NOP if <= 0000h) Return: ??? Note: this function is also supported by the Genius Mouse 9.06 driver SeeAlso: AX=005Ah --------M-330055----------------------------- INT 33 - Kraft Mouse - GET ??? AX = 0055h Return: CX = ??? DX = ??? ES = ??? --------M-330058----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ??? AX = 0058h Return: AX = CS of driver CX:BX = original INT 33 vector DX = ??? Note: this function is also supported by the Genius Mouse 9.06 driver --------M-33005A----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - SET ULTRARES ACCELERATIONS AX = 005Ah CX = number of WORDs to copy (max 0014h, but not range-checked) DX:SI -> buffer containing thresholds??? (CX words) DX:BX -> buffer containing acceleration values??? (9*14h words, only first CX of each 14h used) ??? Return: CF clear ??? Note: this function is also supported by Genius Mouse 9.06 SeeAlso: AX=0054h --------M-330061BXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ??? AX = 0061h BX = CDEFh Return: CX = ??? Note: also supported by Genius Mouse 9.06 --------M-330067----------------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - GET MOUSE BUTTONS??? AX = 0067h Return: BL = number of buttons??? Note: also supported by Genius Mouse 9.06 SeeAlso: AX=0047h --------M-33006CBXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - CLEAR ??? FLAG AX = 006Ch BX = CDEFh Note: also supported by Genius Mouse 9.06 SeeAlso: AX=004Ch --------M-33006D----------------------------- INT 33 - MS MOUSE - GET VERSION STRING AX = 006Dh Return: ES:DI -> Microsoft version number of resident driver (see below) Notes: also supported by Logitech, Mouse Systems, Kraft, and Genius mouse drivers the Mouse Systems 7.01 and Genius Mouse 9.06 drivers report their Microsoft version as 7.00 even though they do not support any of the functions from 0025h through 002Dh supported by the MS 7.00 driver (the Genius Mouse driver supports function 0026h, but it differs from the Microsoft function) SeeAlso: AX=0024h,AX=004Dh,AX=266Ch Format of Microsoft version number: Offset Size Description 00h BYTE major version 01h BYTE minor version (BCD) --------M-330070BXABCD----------------------- INT 33 - Mouse Systems MOUSE DRIVER - POPUP.COM - INSTALLATION CHECK AX = 0070h BX = ABCDh Return: AX = ABCDh if installed BX:CX -> data structure (see below) Notes: this function is also supported by the Genius Mouse 9.06 driver the v7.01 POPUP.COM and menu drivers also check for the signature CDh ABh BAh DCh at offset -2Ch from the interrupt handler if POPUP is not loaded, the returned data structure contains the proper signature at offset 00h, but not at offset 08h Format of data structure: Offset Size Description 00h WORD signature ABCDh 02h DWORD pointer to info structure??? 06h 2 BYTEs ??? 08h WORD signature ABCDh Format of info structure: Offset Size Description 00h WORD driver version 02h 8 BYTEs ??? 0Ah WORD segment of ??? ??? --------M-330072BXABCD----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ??? AX = 0072h BX = ABCDh Return: ??? Note: this function is also supported by the Genius Mouse 9.06 driver --------M-330073BXCDEF----------------------- INT 33 - Mouse Systems MOUSE DRIVER v7.01 - GET BUTTON ASSIGNMENTS AX = 0073h BX = CDEFh ES:DX -> 3-byte buffer for button assignments Return: CX = number of buttons??? ES:DX buffer filled (default is "LMR") Note: also supported by Genius Mouse 9.06 SeeAlso: AX=0067h --------M-33012E----------------------------- INT 33 - MS MOUSE v8.10+ - ??? AX = 012Eh BL = ??? Return: AX = 0000h Note: not supported by Logitech driver v6.10 SeeAlso: AX=002Eh,AX=022Eh --------M-33022E----------------------------- INT 33 - MS MOUSE v8.10+ - ??? AX = 022Eh BL = ??? Return: AX = 0000h Note: not supported by Logitech driver v6.10 SeeAlso: AX=002Eh,AX=012Eh --------M-33136C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 136Ch BX = ??? Return: AX = ??? BX = ??? --------M-33146C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - GET/SET ??? AX = 146Ch BL = function 00h set ??? BH = new value (zero/nonzero to clear/set) else get ??? Return: ??? --------M-33156C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - GET SIGNATURE AND VERSION STRINGS AX = 156Ch Return: ES:DI -> signature "LOGITECH MOUSE DRIVER" ES:SI -> version string, terminated with CRLF --------M-33166C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 166Ch BL = ??? 00h ??? 01h ??? other ??? BH = new value of ??? Return: AX = FFFFh --------M-33176C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 176Ch ??? Return: ??? --------M-33186C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 186Ch ??? Return: ??? --------M-33196C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 196Ch ??? Return: ??? --------M-331A6C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - GET ??? AX = 1A6Ch Return: AX = FFFFh BX = ??? CX = ??? SeeAlso: AX=1B6Ch --------M-331B6C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - SET ??? AX = 1B6Ch BX = new value for ??? (0000h-0003h) Return: AX = FFFFh SeeAlso: AX=1A6Ch --------M-331C6C----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 1C6Ch BX = ??? <42h ??? =42h ??? >42h ??? ES:DI -> ??? Return: AX = ??? --------M-331D6C----------------------------- INT 33 - LOGITECH MOUSE - GET COMPASS PARAMETER AX = 1D6Ch Return: BX = direction (0=north, 1=south, 2=east, 3=west) SeeAlso: AX=1E6Ch --------M-331E6C----------------------------- INT 33 - LOGITECH MOUSE - SET COMPASS PARAMETER AX = 1E6Ch BX = direction (0=north, 1=south, 2=east, 3=west) SeeAlso: AX=1D6Ch --------M-331F6C----------------------------- INT 33 - LOGITECH MOUSE - GET BALLISTICS INFORMATION AX = 1F6Ch Return: BX = 0=off, 1=on CX = 1=low, 2=high SeeAlso: AX=002Ch,AX=236Ch --------M-33206C----------------------------- INT 33 - LOGITECH MOUSE - SET LEFT OR RIGHT PARAMETER AX = 206Ch BX = parameter (00h = right, FFh = left) SeeAlso: AX=216Ch --------M-33216C----------------------------- INT 33 - LOGITECH MOUSE - GET LEFT OR RIGHT PARAMETER AX = 216Ch Return: BX = parameter (00h = right, FFh = left) SeeAlso: AX=206Ch --------M-33226C----------------------------- INT 33 - LOGITECH MOUSE - REMOVE DRIVER FROM MEMORY AX = 226Ch Note: this only frees memory; does not restore hooked interrupts --------M-33236C----------------------------- INT 33 - LOGITECH MOUSE - SET BALLISTICS INFORMATION AX = 236Ch BX = 0=off, 1=on CX = 1=low, 2=high SeeAlso: AX=002Ch,AX=1F6Ch --------M-33246C----------------------------- INT 33 - LOGITECH MOUSE - GET PARAMETERS AND RESET SERIAL MOUSE AX = 246Ch ES:DX -> parameter table buffer (see below) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=0000h,AX=256Ch/BX=0000h,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h Format of parameter table: Offset Size Description 00h WORD baud rate divided by 100 (serial mouse only) 02h WORD emulation (serial mouse only) 04h WORD report rate (serial mouse only) 06h WORD firmware revision (serial mouse only) 08h WORD 00h (serial mouse only) 0Ah WORD port (serial mouse only) 0Ch WORD physical buttons 0Eh WORD logical buttons --------M-33256CBX0000----------------------- INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET BAUD RATE (SERIAL MOUSE ONLY) AX = 256Ch BX = 0000h CX = rate (0=1200, 1=2400, 2=4800, 3=9600) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0002h,AX=276Ch --------M-33256CBX0001----------------------- INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET EMULATION (SERIAL MOUSE ONLY) AX = 256Ch BX = 0001h CX = emulation 00h 5 byte packed binary 01h 3 byte packed binary 02h hexadecimal 03h relative bit pad 04h not supported 05h MM Series 06h not supported 07h Microsoft Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0003h,AX=276Ch --------M-33256CBX0002----------------------- INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET REPORT RATE (SERIAL MOUSE ONLY) AX = 256Ch BX = 0002h CX = rate (0=10, 1=20, 2=35, 3=50, 4=70, 5=100, 6=150) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h,AX=276Ch --------M-33256CBX0003----------------------- INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE PORT (SERIAL MOUSE ONLY) AX = 256Ch BX = 0003h CX = port (1, 2) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0004h,AX=276Ch --------M-33256CBX0004----------------------- INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE LOGICAL BUTTONS AX = 256Ch BX = 0004h CX = buttons (2, 3) Return: AX = FFFFh if driver installed for serial mouse SeeAlso: AX=246Ch,AX=276Ch --------M-33266C----------------------------- INT 33 - LOGITECH MOUSE - GET VERSION??? AX = 266Ch Return: BX = 'SS' CH = '4' major version number CL = '1' minor version number SeeAlso: AX=006Dh --------M-33276C----------------------------- INT 33 - LOGITECH MOUSE - ??? Tries MMSeries, Baud 2400 AX = 276Ch SeeAlso: AX=256Ch --------M-333000----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - INSTALLATION CHECK AX = 3000h Return: AX = FFFFh if installed BX = version number (BH = major, BL = minor) Program: SMD is a programmer's library by Andy Hakim which provides a graphics-style mouse cursor in text mode. PrecisePoint is an SMD-based TSR which replaces the block mouse cursor in text applications. SeeAlso: AX=0000h,AX=3001h,AX=3003h --------M-333001----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - ENABLE SMOOTH MOUSE AX = 3001h Return: AX = status (0000h = disabled, 0001h = enabled) Note: SMD remains disabled if running under Desqview or in graphics mode SeeAlso: AX=0001h,AX=0002h,AX=3002h --------M-333002----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - DISABLE SMOOTH MOUSE AX = 3002h Return: AX = status (0000h = disabled, 0001h = enabled) SeeAlso: AX=0001h,AX=0002h,AX=3000h,AX=3001h --------M-333003----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - GET INFORMATION AX = 3003h BL = data structure selector 00h Primary Bitmap (used for 25 line mode) 01h Secondary Bitmap (used for 43/50 line modes) 02h Sacrifice Character Map 03h Program Information Return: ES:DX -> selected data structure SeeAlso: AX=3000h Format of Primary/Secondary Bitmap [SMD_BITMAP_STRUCT] Offset Size Description 00h BYTE vertical size of bitmap (00h - 10h) 01h BYTE horizontal size of bitmap (00h - 10h) 02h BYTE vertical hotspot position (00h - 10h) 03h BYTE horizontal hotspot position (00h - 10h) 04h 16 WORDs cursor bitmap data 14h 16 WORDs screen bitmap data Format of Sacrifice Character Map [SMD_SMAP_STRUCT] Offset Size Description 00h BYTE bytes are character values (00h-FFh) used in place of the 01h BYTE actual character for the corresponding position on the screen 02h BYTE +--------------+ occupied by part or all of the mouse 03h BYTE | 0h | 1h | 2h | cursor 04h BYTE |----+----+----| 05h BYTE | 3h | 4h | 5h | 06h BYTE |----+----+----| 07h BYTE | 6h | 7h | 8h | 08h BYTE +--------------+ Format of Program Information [SMD_INFO_STRUCT] Offset Size Description 00h WORD segment of old interrupt 33h handler 02h WORD offset of old interrupt 33h handler 04h WORD PSP of SMD 06h BYTE ENABLE/DISABLE manual setting status 07h BYTE ENABLE/DISABLE internal usage status --------M-333004----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION AX = 3004h SeeAlso: AX=3000h --------M-333005----------------------------- INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION AX = 3005h SeeAlso: AX=3000h --------M-334F00----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - GET ??? AX = 4F00h Return: AX = 004Fh if supported BX = ??? ES:DI -> ??? SeeAlso: AX=4F01h --------M-334F01----------------------------- INT 33 - LOGITECH MOUSE v6.10+ - ??? AX = 4F01h ES = ??? Return: AX = 004Fh if supported ES:DI -> ??? SeeAlso: AX=4F00h --------T-33FFE6----------------------------- INT 33 - Switch-It v3.23 - GET ??? PROGRAM AX = FFE6h CX = length of buffer ES:DI -> buffer for program name Return: ES:DI buffer filled Program: Switch-It is a task switcher supporting up to 100 programs simultaneously by Better Software Technology, Inc. --------T-33FFE7----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFE7h Return: AX = ??? --------T-33FFE8----------------------------- INT 33 - Switch-It v3.23 - ??? AX = FFE8h CX = length of name including terminating NUL DS:SI -> ASCIZ program pathname --------T-33FFE9----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFE9h BX = ??? --------T-33FFEA----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFEAh BL = ??? --------T-33FFEB----------------------------- INT 33 - Switch-It v3.23 - SET ??? FLAG AX = FFEBh --------T-33FFEC----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFECh BL = ??? --------T-33FFED----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFEDh Return: AX = ??? (0001h) BX = ??? Program: Switch-It is a task switcher supporting up to 100 programs simultaneously by Better Software Technology, Inc. --------T-33FFEE----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFEEh Return: AX = ??? --------T-33FFEF----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFEFh Return: BX:AX -> ??? --------T-33FFF0----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFF0h BL = ??? --------T-33FFF1----------------------------- INT 33 - Switch-It v3.23 - GET CONFIGURATION FILE AX = FFF1h Return: BX:AX -> ASCIZ pathname of configuration file Program: Switch-It is a task switcher supporting up to 100 programs simultaneously by Better Software Technology, Inc. --------T-33FFF2----------------------------- INT 33 - Switch-It v3.23 - SET ??? FLAG AX = FFF2h Return: AL = 01h --------T-33FFF3----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFF3h Return: AX = ??? --------T-33FFF4----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFF4h BX = ??? CX = ??? --------T-33FFF5----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFF5h Return: AX = ??? --------T-33FFF6----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFF6h Return: AX = ??? --------T-33FFF7----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFF7h BX = index of ??? Return: AX = ??? --------T-33FFF8----------------------------- INT 33 - Switch-It v3.23 - ??? AX = FFF8h BX = ??? CX = length of program name, including terminating NUL DS:SI -> ASCIZ program pathname Return: ??? Program: Switch-It is a task switcher supporting up to 100 programs simultaneously by Better Software Technology, Inc. --------T-33FFF9----------------------------- INT 33 - Switch-It v3.23 - NOP AX = FFF9h --------T-33FFFA----------------------------- INT 33 - Switch-It v3.23 - SET ??? AX = FFFAh BX = index of program SeeAlso: AX=FFFBh,AX=FFFCh --------T-33FFFB----------------------------- INT 33 - Switch-It v3.23 - GET ??? AX = FFFBh BX = index of program Return: AX = ??? (0000h or 0001h) SeeAlso: AX=FFFAh,AX=FFFCh --------T-33FFFC----------------------------- INT 33 - Switch-It v3.23 - CLEAR ??? AX = FFFCh BX = index of program SeeAlso: AX=FFFAh,AX=FFFCh --------T-33FFFD----------------------------- INT 33 - Switch-It v3.23 - GET MEMORY ADDRESSES??? AX = FFFDh Return: AX = first available segment??? BX = paragraph of top of conventional memory DX = PSP segment of SI.EXE --------T-33FFFE----------------------------- INT 33 - Switch-It v3.23 - INSTALLATION CHECK AX = FFFEh Return: BX = ??? DX = 5349h ("SI") --------T-33FFFF----------------------------- INT 33 - Switch-It v3.23 - ??? AX = FFFFh BX = ??? Program: Switch-It is a task switcher supporting up to 100 programs simultaneously by Better Software Technology, Inc. --------r-34--------------------------------- INT 34 - FLOATING POINT EMULATION - OPCODE D8h Desc: this interrupt is used to emulate floating-point instructions with an opcode of D8h Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 35,INT 3E --------r-35--------------------------------- INT 35 - FLOATING POINT EMULATION - OPCODE D9h Desc: this interrupt is used to emulate floating-point instructions with an opcode of D9h Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 34,INT 36 --------r-36--------------------------------- INT 36 - FLOATING POINT EMULATION - OPCODE DAh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DAh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 35,INT 37 --------r-37--------------------------------- INT 37 - FLOATING POINT EMULATION - OPCODE DBh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DBh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 36,INT 38 --------r-38--------------------------------- INT 38 - FLOATING POINT EMULATION - OPCODE DCh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DCh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 37,INT 39 --------O-38--------------------------------- INT 38 - PC-MOS/386 v3.0 - API Note: this API was been moved to INT D4h sometime between versions 3.0 and 5.01; v3.0 supported at least functions 02h,04h,0703h,10h,11h, and 12h SeeAlso: INT D4/AH=02h,INT D4/AH=04h,INT D4/AH=07h,INT D4/AH=10h,INT D4/AH=11h --------r-39--------------------------------- INT 39 - FLOATING POINT EMULATION - OPCODE DDh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DDh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 38,INT 3A --------r-3A--------------------------------- INT 3A - FLOATING POINT EMULATION - OPCODE DEh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DEh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 39,INT 3B --------r-3B--------------------------------- INT 3B - FLOATING POINT EMULATION - OPCODE DFh Desc: this interrupt is used to emulate floating-point instructions with an opcode of DFh Note: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt SeeAlso: INT 3A,INT 3C --------r-3C--------------------------------- INT 3C - FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE Notes: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt the generated code is CD 3C xy mm .... where xy is a modified ESC instruction and mm is the modR/M byte. The xy byte appears to be encoded as s s 0 1 1 x x x or s s 0 0 0 x x x where "ss" specifies the segment override: 00 -> DS: 01 -> SS: 10 -> CS: 11 -> ES: SeeAlso: INT 3B,INT 3D --------r-3D--------------------------------- INT 3D - FLOATING POINT EMULATION - STANDALONE FWAIT Notes: the floating-point emulators in Borland and Microsoft languages and Lahey FORTRAN use this interrupt this vector is modified but not restored by Direct Access v4.0, and may be left dangling by other programs written with the same version of compiled BASIC SeeAlso: INT 3C,INT 3E --------r-3E--------------------------------- INT 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL Notes: the two bytes following the INT 3E instruction are the subcode and a NOP (90h), except for subcodes DCh and DEh, where the second byte is a register count (01h-08h) this vector is modified but not restored by Direct Access v4.0, and may be left dangling by other programs written with the same version of compiled BASIC SeeAlso: INT 3D Values for subcode: Subcode Function DCh load 8086 stack with 8087 registers; overwrites the 10*N bytes at the top of the stack prior to the INT 3E with the 8087 register contents DEh load 8087 registers from top of 8086 stack; ST0 is furthest from top of 8086 stack E0h round TOS and R1 to single precision, compare, pop twice returns AX=8087 status word, FLAGS=8087 condition bits E2h round TOS and R1 to double precision, compare, pop twice returns AX=8087 status word, FLAGS=8087 condition bits Note: buggy in TPas5.5, because it sets the 8087 precision control field to the undocumented value 01h; this results in actually rounding to single precision E4h compare TOS/R1 with two POP's returns FLAGS=8087 condition bits E6h compare TOS/R1 with POP returns FLAGS=8087 condition bits E8h FTST (check TOS value) returns FLAGS=8087 condition bits EAh FXAM (check TOS value) returns AX=8087 status word ECh sine(ST0) EEh cosine(ST0) F0h tangent(ST0) F2h arctangent(ST0) F4h ST0 = ln(ST0) F6h ST0 = log2(ST0) F8h ST0 = log10(ST0) FAh ST0 = e**ST0 FCh ST0 = 2**ST0 FEh ST0 = 10**ST0 --------r-3F--------------------------------- INT 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM) Notes: INT 3F is the default, and may be overridden while linking this vector is modified but not restored by Direct Access v4.0, and may be left dangling by other programs written with the same version of compiled BASIC SeeAlso: INT FE"OVERLAY" --------r-3F--------------------------------- INT 3F - Microsoft Dynamic Link Library manager SeeAlso: INT 21/AH=4Bh --------B-40--------------------------------- INT 40 - DISKETTE - ROM BIOS DISKETTE HANDLER RELOCATED BY HARD DISK BIOS SeeAlso: INT 13,INT 47"SuperBIOS",INT 63 --------h-40--------------------------------- INT 40 - Z100 - Master 8259 - Parity error or S100 error SeeAlso: INT 41"Z100",INT FF"Z100" --------O-40--------------------------------- INT 40 - Acorn BBC Master 512 - "OSFIND" - OPEN FILE AL = operation 00h close file 40h open file for reading 80h open file for writing C0h open file for random access DS:BX -> CR-terminated filename Return: AL = file handle (00h if file closed or could not be opened) Note: the Acorn BBC Master 512 is an 80186-based add-on board for the 6502-based Master 128 which uses the original CPU as an I/O processor SeeAlso: INT 41"Acorn",INT 42"Acorn",INT 43"Acorn",INT 44"Acorn",INT 4C"Acorn" --------B-41--------------------------------- INT 41 - SYSTEM DATA - HARD DISK 0 PARAMETER TABLE Note: the default parameter table array is located at F000h:E401h in 100% compatible BIOSes; the pointer may be overridden by the hard disk controller's BIOS to support drive formats unknown to the ROM BIOS SeeAlso: INT 13/AH=09h,INT 1E,INT 46 Format of fixed disk parameters: Offset Size Description 00h WORD number of cylinders 02h BYTE number of heads 03h WORD starting reduced write current cylinder (XT only, 0 for others) 05h WORD starting write precompensation cylinder number 07h BYTE maximum ECC burst length (XT only) 08h BYTE control byte bits 0-2: drive option (XT only, 0 for others) bit 3: set if more than 8 heads (AT and later only) bit 4: always 0 bit 5: set if manufacturer's defect map on max cylinder+1 (AT and later only) bit 6: disable ECC retries bit 7: disable access retries 09h BYTE standard timeout (XT only, 0 for others) 0Ah BYTE formatting timeout (XT and WD1002 only, 0 for others) 0Bh BYTE timeout for checking drive (XT and WD1002 only, 0 for others) 0Ch WORD cylinder number of landing zone (AT and later only) 0Eh BYTE number of sectors per track (AT and later only) 0Fh BYTE reserved --------h-41--------------------------------- INT 41 - Z100 - Master 8259 - Processor Swap SeeAlso: INT 40"Z100",INT 42"Z100" --------O-41--------------------------------- INT 41 - Acorn BBC Master 512 - "OSGBPB" - MULTI-BYTE GET/PUT AL = function 01h put bytes sequentially 02h put bytes, ignoring sequential pointer 03h get bytes sequentially 04h get bytes, ignoring sequential pointer 05h get media title and boot option 06h get current device and directory 07h get current library and device 08h search directory DS:BX -> control block (see below) Return: CF clear if successful CF set on error AL = 00h if operation attempted AL unchanged if unsupported function SeeAlso: INT 40"Acorn",INT 42"Acorn",INT 43"Acorn" Format of control block: Offset Size Description 00h BYTE file handle 01h DWORD pointer to data in either I/O processor or Tube processor 05h DWORD number of bytes to be transferred 09h DWORD transfer address --------G-4112------------------------------- INT 41 P - MS Windows debugging kernel - "OutputDebugString" AH = 12h ??? Return: ??? SeeAlso: AH=50h --------G-4150------------------------------- INT 41 P - MS Windows debugging kernel - "DefineDebugSegment" AH = 50h ??? Return: ??? SeeAlso: AH=12h --------V-42--------------------------------- INT 42 - VIDEO - RELOCATED DEFAULT INT 10 VIDEO SERVICES (EGA,VGA) SeeAlso: INT 10 Note: not used by PS/2 built-in VGA or XGA --------h-42--------------------------------- INT 42 - Z100 - Master 8259 - Timer SeeAlso: INT 41"Z100",INT 43"Z100" --------b-42--------------------------------- INT 42 - Western Digital WD1002 SuperBIOS - INT 40 CASCADE Note: if the second WD1002 controller in the system finds INT 40 already in use, it uses this vector to cascade to the first controller's BIOS SeeAlso: INT 40"DISKETTE",INT 47"SuperBIOS" --------O-42--------------------------------- INT 42 - Acorn BBS Master 512 - "OSBPUT" - WRITE SINGLE BYTE TO FILE AL = byte to be written BH = file handle Return: flags destroyed SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn" --------V-43--------------------------------- INT 43 - VIDEO DATA - CHARACTER TABLE (EGA,MCGA,VGA) points at graphics data for characters 00h-7Fh of the current font SeeAlso: INT 1F,INT 44"VIDEO" --------h-43--------------------------------- INT 43 - Z100 - Master 8259 - Slave 8259 input Note: slave runs in special fully nested mode SeeAlso: INT 42"Z100",INT 44"Z100" --------O-43--------------------------------- INT 43 - Acorn BBC Master 512 - "OSBGET" - READ SINGLE BYTE FROM FILE BH = file handle Return: CF clear if successful AL = byte read from file CF set on error SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 42"Acorn",INT 46"Acorn" --------V-44--------------------------------- INT 44 - VIDEO DATA - ROM BIOS CHARACTER FONT, CHARACTERS 00h-7Fh (PCjr) points at graphics data for current character font SeeAlso: INT 1F,INT 43"VIDEO" --------N-44--------------------------------- INT 44 - Novell NetWare - HIGH-LEVEL LANGUAGE API --------I-44--------------------------------- INT 44 - IBM 3270-PC High Level Language API DS:SI -> parameter control block --------h-44--------------------------------- INT 44 - Z100 - Master 8259 - Serial A SeeAlso: INT 43"Z100",INT 45"Z100" --------v-44--------------------------------- INT 44 - VIRUS - "Lehigh" - ORIGINAL INT 21h VECTOR SeeAlso: INT 32"VIRUS",INT 60"VIRUS",INT 70"VIRUS",INT 9E"VIRUS" --------O-4400------------------------------- INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE AH = 00h AL = function 00h get current filing system Return: AL = filing system (see below) 01h get address of commandline tail Return: BX buffer filled with address of command tail in I/O processor address space (use INT 4A/AL=05h to retrieve) FFh flush all files onto secondary storage BX -> 4-byte data buffer Note: the commandline tail is terminated with a carriage return (0Dh) SeeAlso: INT 40"Acorn",INT 45"Acorn" Values for filing system: 00h none 01h 1200 bps cassette 02h 300 bps cassette 03h ROM FS 04h DFS 05h ANFS/NFS 06h TFS 08h ADFS --------O-44--------------------------------- INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE AH = nonzero file handle AL = function 00h get sequential pointer for file 01h set sequential pointer for file 02h get length of file BX -> 4-byte data buffer Return: BX buffer updated if appropriate SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44/AH=00h,INT 45"Acorn",INT 4A"Acorn" --------h-45--------------------------------- INT 45 - Z100 - Master 8259 - Serial B SeeAlso: INT 44"Z100",INT 46"Z100" --------O-45--------------------------------- INT 45 - Acorn BBC Master 512 - "OSFILE" - READ/WRITE FILE OR DIRECTORY INFO AL = function 00h save block of memory as file 01h update directory entry for existing file 02h set load address for existing file 03h set execution address for existing file 04h set attributes for existing file 05h read directory 06h delete file FFh load file DS:BX -> control block (see below) Return: FLAGS destroyed AL = file type 00h not found 01h file found 02h directory found FFh protected file SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44"Acorn",INT 46"Acorn" Format of control block: Offset Size Description 00h WORD address of CR-terminated filename 02h DWORD load address of file 06h DWORD execution address of file 0Ah DWORD start address of data to save 0Eh DWORD end address of data to save, or file attributes file attributes in low byte (see below) other three bytes are filing-system specific file attributes Bitfields for file attributes: bit 0 no owner read access bit 1 no owner write access bit 2 not executable by owner bit 3 not deletable by owner bit 4 no public read access bit 5 no public write access bit 6 not executable with public access bit 7 not deletable with public access --------B-46--------------------------------- INT 46 - SYSTEM DATA - HARD DISK 1 DRIVE PARAMETER TABLE SeeAlso: INT 13/AH=09h,INT 41 --------h-46--------------------------------- INT 46 - Z100 - Master 8259 - Keyboard, Retrace, and Light Pen SeeAlso: INT 45"Z100",INT 47"Z100" --------O-46--------------------------------- INT 46 - Acorn BBC Master 512 - "OSRDCH" - GET CHARACTER FROM CUR INPUT STREAM Return: CF clear if successful AL = character read CF set on error AL = error code SeeAlso: INT 40"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn" --------h-47--------------------------------- INT 47 - Z100 - Master 8259 - Printer SeeAlso: INT 46"Z100",INT 48"Z100" --------O-47--------------------------------- INT 47 - Acorn BBC Master 512 - "OSWRCH" - WRITE CHARACTER TO CUR OUTPUT STREAM AL = character to be written Return: FLAGS destroyed SeeAlso: INT 40"Acorn",INT 46"Acorn",INT 49"Acorn" --------b-47--------------------------------- INT 47 - Western Digital WD1002-27X SuperBIOS - INT 40 CASCADE Desc: used by the second WD1002-27X controller to cascade to the first controller's INT 40 SeeAlso: INT 40"DISKETTE",INT 42"SuperBIOS",INT 48"SuperBIOS" ----------478000----------------------------- INT 47 - SQL Base - DATABASE ENGINE API AX = 8000h DS:BX -> parameter block, first word is function number Program: SQL Base is a network-oriented database engine by Gupta Technologies SeeAlso: AX=8001h Values for function number: 01h "SQLFINI" initalialize application's use of the database 02h "SQLFDON" application is done using the database 03h "SQLFCON" connect to a cursor/database 04h "SQLFDIS" disconnect from a cursor/database 05h "SQLFCOM" compile a SQL command 06h "SQLFEXE" execute a SQL command 07h "SQLFCEX" compile and execute a SQL command 08h "SQLFCMT" commit a transaction to the database 09h "SQLFDES" describe the items of a SELECT statement 0Ah "SQLFGFI" get fetch information 0Bh "SQLFFBK" fetch previous result row from SELECT statement 0Ch "SQLFFET" fetch next result row from SELECT statement 0Dh "SQLFEFB" enable fetch backwards 0Eh "SQLFPRS" position in result set 0Fh "SQLFURS" undo result set 10h "SQLFNBV" get number of bind variables 11h "SQLFBND" bind data variables 12h "SQLFBNN" bind numerics 13h "SQLFBLN" bind long number 14h "SQLFBLD" bind long data variables 15h "SQLFSRS" start restriction set processing 16h "SQLFRRS" restart restriction set processing 17h "SQLFCRS" close restriction set 18h "SQLFDRS" drop restriction set 19h "SQLFARF" apply Roll Forward journal 1Ah "SQLFERF" end Roll Forward journal 1Bh "SQLFSRF" start Roll Forward journal 1Ch "SQLFSTO" store a compiled SQL command 1Dh "SQLFRET" retrieve a compiled SQL command 1Eh "SQLFDST" drop a stored command 1Fh "SQLFCTY" get command type 20h "SQLFEPO" get error position 21h "SQLFGNR" get number of rows 22h "SQLFNSI" get number of select items 23h "SQLFRBF" get Roll Back flag 24h "SQLFRCD" get return code 25h "SQLFROW" get number of ROWs 26h "SQLFSCN" set cursor name 27h "SQLFSIL" set isolation level 28h "SQLFSLP" set log parameters 29h "SQLFSSB" set select buffer 2Ah "SQLFSSS" set sort space 2Bh "SQLFRLO" read long 2Ch "SQLFWLO" write long 2Dh "SQLFLSK" long seek 2Eh "SQLFGLS" get long size 2Fh "SQLFELO" end long operation 30h "SQLFRBK" roll back a transaction from the database 31h "SQLFERR" error message 32h "SQLFCPY" copy 33h "SQLFR01" reserved 34h "SQLFSYS" system 35h "SQLFSTA" statistics 36h "SQLFR02" reserved 37h "SQLFXAD" extra add 38h "SQLFXCN" extra character to number 39h "SQLFXDA" extra date add 3Ah "SQLFXDP" extra date picture 3Bh "SQLFXDV" extra divide 3Ch "SQLFXML" extra multiply 3Dh "SQLFXNP" extra number picture 3Eh "SQLFXPD" extra picture date 3Fh "SQLFXSB" extra subtract 40h "SQLFINS" install database 41h "SQLFDIN" deinstall database 42h "SQLFDIR" directory of databases 43h "SQLFTIO" timeout 44h "SQLFFQN" get fully qualified column name 45h "SQLFEXP" explain execution plan 46h "SQLFFER" get full error 47h "SQLFBKP" begin online backup 48h "SQLFRDC" read backup data chunk 49h "SQLFEBK" end backup 4Ah "SQLFRES" begin restore from backup 4Bh "SQLFWDC" write backup data chunk for restore 4Ch "SQLFRRD" recover restored database to consistent state 4Dh "SQLFERS" end restore 4Eh "SQLFNRR" return number of result set rows 4Fh "SQLFSTR" start restriction mode 50h "SQLFSPR" stop restriction mode 51h "SQLFCNC" connect 2 52h "SQLFCNR" connect with no recovery 53h "SQLFOMS" set output message size 54h "SQLFIMS" set input message size 55h "SQLFSCP" set cache pages 56h "SQLFDSC" describe items of a SELECT statement (external) 57h "SQLFLAB" get label info for items in SELECT statement 58h "SQLFCBV" clear bind variables 59h "SQLFGET" get database information 5Ah "SQLFSET" set database information 5Bh "SQLFTEC" translate error code ----------478001----------------------------- INT 47 - SQL Base - GET VERSION NUMBER AX = 8001h Return: ??? Program: SQL Base is a network-oriented database engine by Gupta Technologies SeeAlso: AX=8000h --------B-48--------------------------------- INT 48 - KEYBOARD - CORDLESS KEYBOARD TRANSLATION (PCjr) SeeAlso: INT 49"PCjr" --------h-48--------------------------------- INT 48 - Z100 - Slave 8259 - S100 vectored line 0 SeeAlso: INT 47"Z100",INT 49"Z100" --------N-48--------------------------------- INT 48 - Watstar PC Network data pointer 1 SeeAlso: INT 49"Watstar" --------O-48--------------------------------- INT 48 - Acorn BBC Master 512 - "OSNEWL" - SEND NEWLINE TO OUTPUT STREAM Return: FLAGS destroyed Note: writes a carriage return (0Dh) followed by a linefeed (0Ah) SeeAlso: INT 40"Acorn",INT 47"Acorn",INT 49"Acorn" --------b-48--------------------------------- INT 48 - Western Digital WD1002-27X SuperBIOS - DRIVE DATA (NOT A VECTOR!) Note: the second WD1002-27X controller in a system uses the low byte to store the number of drives controlled by the second controller, and the high word for temporary storage during track recalculation; the first controller uses offsets 74h-77h in the BIOS data area (see MEMORY.LST) to store data SeeAlso: INT 47"SuperBIOS" ----------48--------------------------------- INT 48 U - Compaq UILIB.EXE - API AX = function (see below) BX = call type (0002h) (see AX=1A70h) ??? Return: ??? Note: returns AX=FFFFh if 1000h<=AX<=2000h and AX is not one of the functions listed below SeeAlso: AX=1A70h Values for function: 1000h 1160h 12D0h 1430h 1570h 1680h 17F0h 1920h 1A90h 1010h 1170h 12E0h 1440h 1578h 1690h 1800h 1930h 1AA0h 1020h 1180h 12F0h 1450h 1580h 16A0h 1810h 1940h 1030h 1190h 1300h 1460h 1590h 16B0h 1820h 1950h 1040h 11A0h 1310h 1470h 1594h 16C0h 1830h 1960h 1050h 11B0h 1320h 1480h 1598h 16D0h 1840h 1970h 1060h 11C0h 1330h 1490h 15A0h 16E0h 1848h 1980h 1070h 11D0h 1340h 14A0h 15B0h 16F0h 1850h 1990h 1080h 11E0h 1350h 14B0h 15C0h 1700h 1860h 19A0h 1090h 11F0h 1360h 14B8h 15D0h 1710h 1870h 19B0h 1095h 1200h 1370h 14BBh 15D4h 1720h 1878h 19C0h 1098h 1210h 1380h 14C0h 15D8h 1730h 1880h 19D0h 10A0h 1220h 1390h 14D0h 15E0h 1735h 1890h 19E0h 10C0h 1230h 13A0h 14E0h 15F0h 1740h 1898h 19F0h 10D0h 1240h 13B0h 14F0h 1600h 1750h 18A0h 1A00h 10E0h 1250h 13B8h 1500h 1610h 1770h 18B0h 1A10h 10F0h 1260h 13C0h 1508h 1620h 1780h 18C0h 1A20h 1100h 1270h 13D0h 1510h 1630h 1790h 18D0h 1A30h 1110h 1280h 13E0h 1520h 1640h 17A0h 18E0h 1A40h 1120h 1290h 13F0h 1530h 1650h 17B0h 18F0h 1A50h 1130h 12A0h 1400h 1540h 1660h 17C0h 1900h 1A60h 1140h 12B0h 1410h 1550h 1664h 17D0h 1909h 1A70h 1150h 12C0h 1420h 1560h 1670h 17E0h 1910h 1A80h ----------481A70----------------------------- INT 48 U - Compaq UILIB.EXE - INSTALLATION CHECK AX = 1A70h BX = call type (see below) Return: CX = 5649h ('VI') if installed DX = 4557h ('EW') if installed AX = version??? (0106h) Values for call type: 0000h near 0001h far 0002h INT (only valid call type when using INT 48) 0003h near --------B-49--------------------------------- INT 49 - SYSTEM DATA - NON-KEYBOARD SCAN-CODE TRANSLATION TABLE (PCjr) SeeAlso: INT 48"PCjr" Format of translation table: Offset Size Description 00h BYTE number of nonkeyboard scancodes in the table 01h N WORDs high byte 00h (NUL) byte scancode with low order byte representing the scancode mapped values relative to their input values within the range of 56h through 7Eh --------h-49--------------------------------- INT 49 - Z100 - Slave 8259 - S100 vectored line 1 SeeAlso: INT 48"Z100",INT 4A"Z100" ----------49--------------------------------- INT 49 - Texas Instruments PC - VIDEO I/O??? apparently provides direct video display on the TI Professional PC --------N-49--------------------------------- INT 49 - Watstar PC Network data pointer 2 SeeAlso: INT 49"Watstar" --------O-49--------------------------------- INT 49 - Acorn BBC Master 512 - "OSASCI" - WRITE CHARACTER TO CUR OUTPUT STREAM AL = character to be written Return: FLAGS destroyed Note: converts carriage return (0Dh) into CRLF sequence (0Dh 0Ah) SeeAlso: INT 40"Acorn",INT 46"Acorn",INT 47"Acorn",INT 48"Acorn" --------a-490001----------------------------- INT 49 - MAGic v1.16+ - TURN ON MAGNIFICATION AX = 0001h Return: AX = status (see below) BX,CX,DX destroyed Program: MAGic (MAGnification In Color) is a TSR by Microsystems Software, Inc. providing 2x2 text and graphics magnification on VGA, XGA, and SVGA Note: INT 49 is the default, but may be overridden on the commandline. The actual interrupt in use may be found by searching for the signature "MAGic" or "xMAGic" (for the deluxe version) immediately preceding the interrupt handler (this is also the installation check). MAGic uses CodeRunneR, which places the signature "RT" at offset 0000h in the interrupt handler's segment, followed by MAGic's TSR ID of "VMAG". SeeAlso: AX=0001h,AX=0003h,AX=0004h,AX=0008h Index: installation check;MAGic Values for status: 0000h cannot magnify current video mode 0002h magnified (text mode) 0003h magnified (graphics mode) FFFDh function works only in magnified mode FFFFh MAGic busy, retry later --------a-490002----------------------------- INT 49 - MAGic v1.16+ - TURN OFF MAGNIFICATION AX = 0002h Return: AX = status (see AX=0001h) BX,CX,DX destroyed SeeAlso: AX=0001h --------a-490003----------------------------- INT 49 - MAGic v1.16+ - SHIFT MAGNIFIED WINDOW TO INCLUDE SPECIFIED LOCATION AX = 0003h BX = vertical position (character row [text] or pixel row [graphics]) DX = horizontal position (char column [text] or 8-pixel units [gr]) Return: AX = status 0000h successful FFFFh MAGic busy, retry later BX,CX,DX destroyed Note: window is not moved if the position is inside the current window SeeAlso: AX=0001h,AX=0004h,AX=0005h --------a-490004----------------------------- INT 49 - MAGic v1.16+ - REPOSITION MAGNIFIED WINDOW AX = 0004h BX = vertical position of upper left corner DX = horizontal position Return: AX = status (see AX=0003h) BX,CX,DX destroyed SeeAlso: AX=0001h,AX=0003h,AX=0005h --------a-490005----------------------------- INT 49 - MAGic v1.16+ - GET POSITION OF MAGNIFIED WINDOW AX = 0005h Return: AX = status 0000h successful BX = vertical position (char row or pixel row) DX = horizontal position (char column or 8-pixel units) FFFFh MAGic busy, retry later BX,DX destroyed CX destroyed SeeAlso: AX=0001h,AX=0003h,AX=0004h,AX=0006h,AX=0007h --------a-490006----------------------------- INT 49 - MAGic v1.16+ - GET SIZE OF FULL SCREEN AX = 0006h Return: AX = status 0000h successful BX = vertical size (char rows or pixel rows) DX = horizontal size (char cols or 8-pixel units) FFFFh MAGic busy, retry later BX,DX destroyed CX destroyed SeeAlso: AX=0001h,AX=0005h,AX=0007h --------a-490007----------------------------- INT 49 - MAGic v1.16+ - GET SIZE OF MAGNIFICATION WINDOW AX = 0007h Return: AX = status 0000h successful BX = vertical size (char rows or pixel rows) DX = horizontal size (char cols or 8-pixel units) FFFEh invalid function FFFFh MAGic busy, retry later BX,DX destroyed CX destroyed BUG: in v1.16 and v1.17, this function is not recognized as valid, but AX=0000h is accepted and will branch into hyperspace SeeAlso: AX=0001h,AX=0006h --------a-490008----------------------------- INT 49 - MAGic v1.23+ - SET TEXT MODE MAGNIFICATION SIZE AX = 0008h BX = scaling factor (01h=1.4 times, 02h, 04h, 06h, 08h, 09h=12 times) Return: AX = status 0000h successful FFFBh scaling factor only available in MAGic Deluxe FFFCh already in magnified state, can't set size Notes: this call specifies the amount a subsequent call to AX=0001h should magnify the display scaling factors greater than 2 are only available in MAGic Deluxe SeeAlso: AX=0001h --------B-4A--------------------------------- INT 4A C - SYSTEM - USER ALARM HANDLER Desc: This interrupt is invoked by the BIOS when a real-time clock alarm occurs; an application may use it to perform an action at a predetermined time. Note: this interrupt is called from within a hardware interrupt handler, so all usual precautions against reentering DOS must be taken SeeAlso: INT 1A/AH=06h --------h-4A--------------------------------- INT 4A - Z100 - Slave 8259 - S100 vectored line 2 SeeAlso: INT 49"Z100",INT 4B"Z100" --------O-4A--------------------------------- INT 4A - Acorn BBC Master 512 - "OSWORD" - MISC FUNCTIONS USING CONTROL BLOCK AL = function code FAh transfer data between 80186 and 65C12 I/O processor DS:BX -> control block (see below) Return: FLAGS destroyed control block updated Note: there are more functions than are listed here, but details are not available SeeAlso: INT 40"Acorn",INT 4B"Acorn",INT 4C"Acorn" Format of control block for function FAh: Offset Size Description 00h BYTE number of parameters sent to I/O processor (0Dh,0Eh) 01h BYTE number of parameters read from I/O processor (01h) 02h DWORD I/O processor address 06h DWORD 80186 segment:offset address 0Ah WORD number of bytes to transfer 0Ch BYTE operation type 00h write to 65C12 at 24 us/byte 01h read from 65C12 at 24 us/byte 02h write to 65C12 at 26 us/word 03h read from 65C12 at 26 us/word 04h write to 65C12 at 10 us/byte using 256-byte blocks 05h read from 65C12 at 10 us/byte using 256-byte blocks 0Dh BYTE 65C12 memory access control (only used if offset 00h = 0Eh) bit 7: unused bit 6: always use main screen memory if I/O addr 3000h-7FFFh (overrides bit 5) bit 5: use shadow screen memory if screen address specified bit 4: use current ROM rather than ROM selected by bits 3-0 (only if I/O address between 8000h and BFFFh) bits 3-0: paged ROM number --------h-4B--------------------------------- INT 4B - Z100 - Slave 8259 - S100 vectored line 3 SeeAlso: INT 4A"Z100",INT 4C"Z100" --------d-4B--------------------------------- INT 4B - Common Access Method SCSI interface (draft revision 1.9) ES:DI -> CAM Control Block (see INT 4F/AX=8100h) Notes: the CAM committee moved the interface to INT 4F after revision 1.9 to avoid conflicting with the IBM SCSI interface and the Virtual DMA specification the installation check for the driver is the string "SCSI_CAM" eight bytes past the INT 4Bh handler it is not known whether any drivers actually implemented this interface on INT 4B instead of INT 4F SeeAlso: INT 4F/AX=8100h Index: installation check;Common Access Method SCSI interface --------O-4B--------------------------------- INT 4B - Acorn BBC Master 512 - "OSBYTE" - MISC FUNCTIONS USING REGISTER PARAMS AL = function code BL = first parameter BH = second parameter (if needed) Return: BL = first return parameter BH = second return parameter CF depends on function SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4C"Acorn" --------d-4B80------------------------------- INT 4B - IBM SCSI interface AH = 80h details not yet available --------d-4B8102DX0000----------------------- INT 4B - Virtual DMA Specification (VDS) - GET VERSION AX = 8102h DX = 0000h Return: CF clear if successful AH = major version number AL = minor version number BX = product number (see below) CX = product revision number always 0000h for QMAPS and HPMM.SYS always 0001h for Microsoft's EMM386.EXE v4.20-4.41 SI:DI = maximum DMA buffer size DX = flags bit 0: PC/XT bus (DMA in first megabyte only) bit 1: physical buffer/remap region in first megabyte bit 2: automatic remap enabled bit 3: all memory is physically contiguous bits 4-15 reserved (zero) CF set on error AL = error code (see below) Note: bit 5 of 0040h:007Bh is supposed to be set if VDS is supported; this is apparently not always the case SeeAlso: INT 2C/AX=002Bh,INT 31 Index: installation check;Virtual DMA Spec Values for product number: 0000h for Quadtel's QMAPS and Hewlett-Packard's HPMM.SYS 0001h for Microsoft's EMM386.EXE 0003h for Windows 3.x WIN386.EXE 0EDCh for DR-DOS 6.0 EMM386.SYS 4560h ("E`") for Qualitas' 386MAX 4D43h ("MC") for V Communication's Memory Commander 5145h ("QE") for Quarterdeck's QEMM-386 524Dh ("RM") for Helix's Netroom RM386 Values for error code: 01h region not in contiguous memory 02h region crossed a physical alignment boundary 03h unable to lock pages 04h no buffer available 05h region too large for buffer 06h buffer currently in use 07h invalid memory region 08h region was not locked 09h number of physical pages greater than table length 0Ah invalid buffer ID 0Bh copy out of buffer range 0Ch invalid DMA channel number 0Dh disable count overflow 0Eh disable count underflow 0Fh function not supported 10h reserved flag bits set in DX Format of DMA descriptor structure (DDS): Offset Size Description 00h DWORD region size 04h DWORD offset 08h WORD segment/selector 0Ah WORD buffer ID 0Ch DWORD physical address Format of Extended DMA descriptor structure (EDDS): Offset Size Description 00h DWORD region size 04h DWORD offset 08h WORD segment/selector 0Ah WORD reserved 0Ch WORD number available 0Eh WORD number used 10h DWORD region 0 physical address 14h DWORD region 0 size in bytes 18h DWORD region 1 physical address 1Ch DWORD region 1 size in bytes ... Format of Extended DMA descriptor structure (EDDS) with page table entries: Offset Size Description 00h DWORD region size 04h DWORD offset 08h WORD segment/selector 0Ah WORD reserved 0Ch WORD number available 0Eh WORD number used 10h DWORD page table entry 0 (same as 80386 page table entry) 14h DWORD page table entry 1 ... Note: bits 1-11 of the page table entries should be zero; bit 0 set if page is present and locked --------d-4B8103----------------------------- INT 4B - Virtual DMA Specification - LOCK DMA REGION AX = 8103h DX = flags (see below) ES:DI -> DMA descriptor structure (see AX=8102h) Return: CF clear if successful DDS physical address field filled in DDS buffer ID field filled (0000h if no buffer allocated) CF set on error AL = error code (see AX=8102h) DDS region size field filled wth maximum contiguous length in bytes BUGS: Windows 3.0 does not correctly support automatic remapping or copying in enhanced mode Windows 3.0 in enhanced mode does not return a correct code on error SeeAlso: AX=8104h,AX=8105h Bitfields for flags: bit 0 reserved (zero) bit 1 data should be copied into buffer (ignored if bit 2 set) bit 2 buffer should not be allocated if region noncontiguous or crosses physical alignment boundary specified by bits 4-5 bit 3 don't attempt automatic remap bit 4 region must not cross 64K physical alignment boundary bit 5 region must not cross 128K physical alignment boundary bits 6-15 reserved (zero) --------d-4B8104----------------------------- INT 4B - Virtual DMA Specification - UNLOCK DMA REGION AX = 8104h DX = flags bit 0: reserved (zero) bit 1: data should be copied out of buffer bits 2-15 reserved (zero) ES:DI -> DMA descriptor structure (see AX=8102h) with region size, physical address, and buffer ID fields set Return: CF clear if successful DDS physical address field set DDS buffer ID field set (0000h if no buffer allocated) CF set on error AL = error code (see AX=8102h) DDS region size field filled wth maximum contiguous length in bytes Note: Windows 3.0 does not check whether the region extends beyond the end of a segment BUG: Windows 3.0 in enhanced mode does not return a correct code on error SeeAlso: AX=8103h,AX=8106h --------d-4B8105----------------------------- INT 4B - Virtual DMA Specification - SCATTER/GATHER LOCK REGION AX = 8105h DX = flags bits 0-5 reserved (zero) bit 6: EDDS should be returned with page table entries bit 7: only present pages should be locked (not-present pages receive entry of 0000h) bits 8-15 reserved (zero) ES:DI -> Extended DMA descriptor structure (see AX=8102h) region size, linear segment, linear offset, and number avail fields set Return: CF clear if successful EDDS number used field set if DX bit 6 set, lower 12 bits of BX = offset in first page CF set on error AL = error code (see AX=8102h) EDDS region size field filled with max length in bytes that can be locked and described in the EDDS table BUG: Windows 3.0 in enhanced mode may return zero instead of the physical page address for pages which were originally not present SeeAlso: AX=8103h,AX=8106h --------d-4B8106----------------------------- INT 4B - Virtual DMA Specification - SCATTER/GATHER UNLOCK REGION AX = 8106h DX = flags bits 0-5 reserved (zero) bit 6: EDDS contains page table entries bit 7: EDDS may contain not-present pages (entry = 0000h) bits 8-15 reserved (zero) ES:DI -> Extended DMA descriptor structure (see AX=8102h) returned by AX=8105h Return: CF clear if successful CF set on error AL = error code (see AX=8102h) Note: according to the Microsoft version of the VDS specification, the actual scatter/gather list is ignored, while according to the IBM version of the specification, "the result of a LOCK operation" must be provided to this function SeeAlso: AX=8104h,AX=8105h --------d-4B8107----------------------------- INT 4B - Virtual DMA Specification - REQUEST DMA BUFFER AX = 8107h DX = flags bit 0: reserved (zero) bit 1: data should be copied into buffer bits 2-15 reserved (zero) ES:DI -> DMA descriptor structure (see AX=8102h) with region size set (also region offset and region segment if DX bit 1 set) Return: CF clear if successful DDS physical address and buffer ID set DDS region size filled with length of buffer CF set on error AL = error code (see AX=8102h) SeeAlso: AX=8108h --------d-4B8108----------------------------- INT 4B - Virtual DMA Specification - RELEASE DMA BUFFFER AX = 8108h DX = flags bit 0: reserved (zero) bit 1: data should be copied out of buffer bits 2-15 reserved (zero) ES:DI -> DMA descriptor structure (see AX=8102h) with buffer ID set (also region size/region offset/segment if DX bit 1 set) Return: CF clear if successful CF set on error AL = error code (see AX=8102h) BUG: under Windows 3.0 Enhanced mode, you must specify that data be copied for this function to work correctly SeeAlso: AX=8107h --------d-4B8109DX0000----------------------- INT 4B - Virtual DMA Specification - COPY INTO DMA BUFFER AX = 8109h DX = 0000h ES:DI -> DMA descriptor structure (see AX=8102h) with buffer ID, region segment/offset, and region size fields set BX:CX = starting offset into DMA buffer Return: CF clear if successful CF set on error AL = error code (see AX=8102h) BUG: Windows 3.0 Enhanced mode does not correctly interpret the copy count SeeAlso: AX=810Ah --------d-4B810ADX0000----------------------- INT 4B - Virtual DMA Specification - COPY OUT OF DMA BUFFER AX = 810Ah DX = 0000h ES:DI -> DMA descriptor structure (see AX=8102h) with buffer ID, region segment/offset, and region size fields set BX:CX = starting offset into DMA buffer Return: CF clear if successful CF set on error AL = error code (see AX=8102h) BUG: Windows 3.0 Enhanced mode does not correctly interpret the copy count SeeAlso: AX=8109h --------d-4B810B----------------------------- INT 4B - Virtual DMA Specification - DISABLE DMA TRANSLATION AX = 810Bh BX = DMA channel number DX = 0000h Return: CF clear if successful CF set on error AL = error code (see AX=8102h) SeeAlso: AX=810Ch --------d-4B810C----------------------------- INT 4B - Virtual DMA Specification - ENABLE DMA TRANSLATION AX = 810Ch BX = DMA channel number DX = 0000h Return: CF clear if successful ZF set if disable count decremented to zero CF set on error AL = error code (see AX=8102h) SeeAlso: AX=810Bh --------Q-4B810D----------------------------- INT 4B - QEMM-386 - BUG AX = 810Dh Note: the code in QEMM v5.11 and 6.00 jumps to an invalid location on this call --------h-4C--------------------------------- INT 4C - Z100 - Slave 8259 - S100 vectored line 4 SeeAlso: INT 4B"Z100",INT 4D"Z100" --------O-4C--------------------------------- INT 4C - Acorn BBC Master 512 - "OSCLI" - INTERPRET COMMAND LINE DS:BX -> CR-terminated command string Return: FLAGS destroyed SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4B"Acorn" --------h-4D--------------------------------- INT 4D - Z100 - Slave 8259 - S100 vectored line 5 SeeAlso: INT 4C"Z100",INT 4E"Z100" --------d-4E--------------------------------- INT 4E - TI Professional PC - DISK I/O used instead of INT 13 on the TI Professional PC SeeAlso: INT 13 --------h-4E--------------------------------- INT 4E - Z100 - Slave 8259 - S100 vectored line 6 SeeAlso: INT 4D"Z100",INT 4F"Z100" --------h-4F--------------------------------- INT 4F - Z100 - Slave 8259 - S100 vectored line 7 SeeAlso: INT 4E"Z100" --------d-4F8100----------------------------- INT 4F - Common Access Method SCSI interface rev 2.3 - SEND CCB TO XPT/SIM AX = 8100h ES:BX -> CAM Control Block (CCB) (see below) Return: AH = status 00h successful 01h invalid CCB address (0000h:0000h) Note: the SCSI Interface Module (SIM) may complete the requested function and invoke the completion callback function before this call returns SeeAlso: AX=8200h,INT 2F/AX=7F01h,INT 4B"Common Access Method" Values for CAM function code: 00h NOP 01h execute SCSI I/O 02h get device type 03h path inquiry 04h release SIM queue 05h set async callback 06h set device type 07h-0Fh reserved 10h abort SCSI command 11h reset SCSI bus 12h reset SCSI device 13h terminate I/O process 14h-1Fh reserved 20h engine inquiry 21h execute engine request 22h-2Fh reserved 30h enable logical unit number 31h execute target I/O 32h-7Fh reserved 80h-FFh vendor-specific functions Format of CAM Control Block: Offset Size Description 00h DWORD physical address of this CCB 04h WORD CAM control block length 06h BYTE function code (see above) 07h BYTE CAM status (see below) 08h BYTE SCSI status 09h BYTE path ID (FFh = XPT) 0Ah BYTE target ID 0Bh BYTE logical unit number 0Ch WORD CAM flags (see below) 0Eh BYTE CAM address flags (see below) 0Fh BYTE target-mode flags (see below) ---function 02h--- 10h DWORD pointer to 36-byte buffer for inquiry data or 0000h:0000h 14h BYTE peripheral device type of target logical unit number ---function 03h--- 10h BYTE version number (00h-07h prior to rev 1.7, 08h = rev 1.7, 09h-FFh = rev no, i.e. 23h = rev 2.3) 11h BYTE SCSI capabilities (see below) 12h BYTE target mode support bit 7: processor mode bit 6: phase-cognizant mode bit 5-0: reserved 13h BYTE miscellaneous flags bit 7: scanned high to low instead of low to high bit 6: removables not included in scan bit 5: inquiry data not kept by XPT bits 4-0: reserved 14h WORD engine count 16h 14 BYTEs vendor-specific data 24h DWORD size of private data area 28h DWORD asynchronous event capabilities (see below) 2Ch BYTE highest path ID assigned 2Dh BYTE SCSI device ID of initiator 2Eh 2 BYTEs reserved 30h 16 BYTEs SIM vendor ID 40h 16 BYTEs HBA (host bus adaptor) vendor ID 50h 4 BYTEs operating-system dependant usage ---functions 00h,04h,11h,12h--- no additional fields ---function 05h--- 10h DWORD asynchronous event enables (see function 03h above) 14h DWORD pointer to asynchronous callback routine 18h DWORD pointer to peripheral driver buffer 1Ch BYTE size of peripheral buffer ---function 06h--- 10h BYTE peripheral device type of target ---functions 10h,13h--- 10h DWORD pointer to CCB to be aborted ---function 20h--- 10h WORD engine number 12h BYTE engine type 00h buffer memory 01h lossless compression 02h lossy compression 03h encryption 13h BYTE engine algorithm ID 00h vendor-unique 01h LZ1 variation 1 (STAC) 02h LZ2 variation 1 (HP DCZL) 03h LZ2 variation 2 (Infochip) 14h DWORD engine memory size ---function 21h--- 10h DWORD pointer to peripheral driver 14h 4 BYTEs reserved 18h DWORD OS-dependent request-mapping info 1Ch DWORD address of completion callback routine 20h DWORD pointer to scatter/gather list or data buffer 24h DWORD length of data transfer 28h DWORD pointer to engine buffer data 2Ch 2 BYTEs reserved 2Eh WORD number of scatter/gather entries 30h DWORD maximum destination data length 34h DWORD length of destination data 38h DWORD source residual length 3Ch 12 BYTEs reserved 48h DWORD OS-dependent timeout value 4Ch 4 BYTEs reserved 50h WORD engine number 52h WORD vendor-unique flags 54h 4 BYTEs reserved 58h N BYTEs private data area for SIM ---function 30h--- 10h WORD group 6 vendor-unique CDB length 12h WORD group 7 vendor-unique CDB length 14h DWORD pointer to target CCB list 18h WORD number of target CCBs ---other functions--- 10h DWORD pointer to peripheral driver 14h DWORD pointer to next CCB 18h DWORD OS-dependent request mapping information 1Ch DWORD address of completion callback routine 20h DWORD pointer to scatter/gather list or data buffer 24h DWORD length of data transfer 28h DWORD pointer to sense info buffer 2Ch BYTE length of sense info buffer 2Dh BYTE CDB length 2Eh WORD number of scatter/gather entries 30h 4 BYTEs reserved 34h BYTE SCSI status 35h 3 BYTEs reserved 38h DWORD residual length 40h 12 BYTEs Command Descriptor Block (CDB) 44h DWORD OS-dependent timeout value 48h DWORD pointer to message buffer 4Ch WORD length of message buffer 4Eh WORD vendor-unique flags 50h BYTE tag queue action 51h 3 BYTEs reserved 54h N BYTEs private data area for SIM Bitfields for CAM flags: bit 0 CDB is a pointer bit 1 tagged queue action enable bit 2 linked CDB bit 3 disable callback on completion bit 4 scatter/gather bit 5 disable autosense bits 7-6 direction (00 reserved, 01 in, 10 out, 11 no data transfer) bits 9-8 reserved bit 10 engine synchronize bit 11 SIM queue freeze bit 12 SIM queue priority 1 head insertion 0 tail insertion (normal) bit 13 disable synchronous transfers / exclusive bit 14 initiate synchronous transfers \ mutually bit 15 disable disconnect Bitfields for CAM address flags: bit 7 SG list/data (0 = host, 1 = engine) bit 6 CDB pointer (bits 6-1: 0=virtual addr, 1=phys addr) bit 5 SG list/data bit 4 sense buffer bit 3 message buffer bit 2 next CCB bit 1 callback on completion bit 0 reserved Values for CAM status: 00h request in progress 01h request successful 02h host aborted request 03h unable to abort request 04h request completed with error 05h CAM is busy 06h invalid request 07h invalid path ID 08h no such SCSI device 09h unable to terminate I/O process 0Ah timeout on target selection 0Bh timeout on command 0Dh receive message rejection 0Eh sent/received SCSI bus reset 0Fh detected uncorrectable parity error 10h Autosense request failed 11h no HBA detected 12h data over/underrun 13h bus freed unexpectedly 14h target bus phase sequence failure 15h CCB too small 16h requested capability not available 17h sent bus device reset 18h terminate I/O process 38h invalid LUN 39h invalid target ID 3Ah unimplemented function 3Bh nexus not established 3Ch invalid initiator ID 3Dh received SCSI Command Descriptor Block 3Eh LUN already enabled 3Fh SCSI bus busy Note: bit 6 set to indicate frozen SIM queue bit 7 set to indicate valid autosense Bitfields for target-mode flags: bit 7 data buffer valid bit 6 status valid bit 5 message buffer valid bit 4 reserved bit 3 phase-cognizant mode bit 2 target CCB available bit 1 disable autodisconnect bit 0 disable autosave/restore Bitfields for SCSI capabilities: bit 7 modify data pointers bit 6 wide bus (32 bits) bit 5 wide bus (16 bits) bit 4 synchronous transfers bit 3 linked commands bit 2 reserved bit 1 tagged queueing bit 0 soft reset Bitfields for asynchronous event capabilities: bits 31-24 vendor-specific bits 23-8 reserved bit 7 new devices found during rescan bit 6 SIM module deregistered bit 5 SIM module registered bit 4 sent bus device reset to target bit 3 SCSI AEN bit 2 reserved bit 1 unsolicited reselection bit 0 unsolicited SCSI bus reset Completion callback function called with: interrupts disabled ES:BX -> completed CCB Asynchronous callback function called with: AH = opcode AL = path ID generating callback DH = target ID causing event DL = LUN causing event CX = data byte count (if applicable) ES:BX -> data buffer (if applicable) Return: all registers preserved --------d-4F8200CX8765----------------------- INT 4F - Common Access Method SCSI interface rev 2.3 - INSTALLATION CHECK AX = 8200h CX = 8765h DX = CBA9h Return: AH = 00h if installed CX = 9ABCh DX = 5678h ES:DI -> "SCSI_CAM" SeeAlso: AX=8100h,INT 4B"Common Access Method" --------N-50--------------------------------- INT 50 - TIL Xpert AIM (X.25) AH = function --------H-50--------------------------------- INT 50 - IRQ0 relocated by DESQview Notes: this is the default location for older versions; DESQview v2.26+ searches for unused ranges of interrupts and uses the lowest available range in its list for relocating these IRQs and the next lowest for relocating IRQ8-IRQ15 a range of eight interrupts starting at a multiple of 8 is considered available if all vectors are identical and it has not been excluded with an /XB:nn commandline switch the list of ranges for v2.26 is 50h,58h,68h,78h,F8h (if < two of these are available, F8h and then 50h are used anyway) the list of ranges for v2.31+ is 68h,78h,88h-B8h,F8h (if < two of these are available, F8h and then F0h are used anyway) SeeAlso: INT 08"IRQ0",INT 51"DESQview",INT 54"DESQview",INT 58"DESQview" SeeAlso: INT D8"Screen Thief" --------H-50--------------------------------- INT 50 - IRQ0 relocated by IBM 3278 emulation control program SeeAlso: INT 51"IBM 3278" --------H-50--------------------------------- INT 50 - IRQ0 relocated by OS/2 v1.x SeeAlso: INT 51"OS/2" --------V-500000----------------------------- INT 50 - Vanderaart TEXT WINDOWS, PC Thuis Shell - OPEN TEXT WINDOW AX = 0000h ES:BX -> name string or ES:0000h if none CH,CL = row,column of upper left corner DH,DL = row,column of lower right corner Return: AX = window handle or 0000h if not installed FFFFh on error SeeAlso: AX=0001h,AX=0002h"TEXT WINDOWS" --------V-500001----------------------------- INT 50 - Vanderaart TEXT WINDOWS, PC Thuis Shell - CLOSE TEXT WINDOW AX = 0001h DI = window handle SeeAlso: AX=0000h --------V-500002----------------------------- INT 50 - Vanderaart TEXT WINDOWS - PUT CHARACTER IN WINDOW AX = 0002h BL = character BH = attribute DL = column DH = row DI = window handle Return: AX = status 0000h if successful FFFFh if outside window SeeAlso: AX=0000h --------l-500002----------------------------- INT 50 - PC Thuis Organizer Shell - PLOT TEXT AX = 0002h ES:BX -> text string DH,DL = row,column of upper left corner DI = window handle Return: AX = status 0000h successful (text fits in window) FFFFh error Program: The PC Thuis Organizer Shell was written by John Vanderaart and published in the June/July 1990 issue of PC Thuis Power magazine --------V-500003----------------------------- INT 50 - Vanderaart TEXT WINDOWS - OUTPUT LINE TO WINDOW AX = 0003h ES:BX -> text string CX = string length (0000h if ASCIZ string) DL = position (FFh centered, else flush left) DH = starting row DI = window handle Return: AX = status 0000h successful FFFFh did not fit in window --------l-500003----------------------------- INT 50 - PC Thuis Organizer Shell - WRITE FILE AX = 0003h ES:BX -> data to be written CX = number of bytes to write DS:SI -> filename Return: AX = status 0000h successful FFFFh error SeeAlso: AX=0004h"Shell" --------V-500004----------------------------- INT 50 - Vanderaart TEXT WINDOWS - GET KEY AX = 0004h CH = type 00h any key 01h 'J' or 'N' (Dutch for yes/no) Return: AX = key SeeAlso: INT 16/AH=00h --------l-500004----------------------------- INT 50 - PC Thuis Organizer Shell - READ FILE AX = 0004h ES:BX -> buffer for data CX = number of bytes to read or 0000h for entire file DL = file type 01h setting shell 02h setting sterm 03h INT21 file DS:SI -> filename Return: AX = status 0000h successful FFFFh error Note: file type numbers are maintained by John Vanderaart; if a new file type is needed, a type number should be requested from him through the magazine: PC Thuis BV Spaarne 55 2011 CE HAARLEM The Netherlands SeeAlso: AX=0003h"Shell" --------V-500005----------------------------- INT 50 - Vanderaart TEXT WINDOWS - CHANGE ATTRIBUTE AX = 0005h BL = new attribute CH,CL = row,column of upper left corner DH,DL = row,column of lower right corner DI = window handle --------l-500005----------------------------- INT 50 - PC Thuis Organizer Shell - PROMPT YES/NO AX = 0005h ES:BX -> prompt string (ES:0000h if no prompt) Return: AX = key pressed 0000h "J" (Dutch "Ja" = "Yes") FFFFh "N" (Dutch "Nee" = "No") Program: The PC Thuis Organizer Shell was written by John Vanderaart and published in the June/July 1990 issue of PC Thuis Power magazine SeeAlso: AX=0008h"PC Thuis" --------V-500006----------------------------- INT 50 - Vanderaart TEXT WINDOWS - EDIT LINE IN WINDOW AX = 0006h ES:BX -> text string CH = type of input (see below) DH,DL = row,column of upper left corner DI = window handle Return: AX = key which terminated entry 0000h Enter 0001h Esc 0002h Down arrow 0003h Up arrow 0004h F10 Values for type of input: 00h everything 01h uppercase only 02h positive numbers 03h Dutch postal code ("9999 AA") 04h 'J' or 'N' (Dutch yes/no) 05h telephone or FAX number 06h positive or negative number 07h date (dd/mm/yy) 08h money 09h '1' through '8' 0Ah '1' through '4' 0Bh uppercase filenames --------l-500006----------------------------- INT 50 - PC Thuis Organizer Shell - ALERT USER AX = 0006h ES:BX -> string --------l-500007----------------------------- INT 50 - PC Thuis Organizer Shell - DO LINE AX = 0007h ES:BX -> text string CX = string length in bytes (0000h if NUL-terminated) DL = FFh to center string, else flush left DH = upper left row DI = window handle Return: AX = status 0000h successful FFFFh error Program: The PC Thuis Organizer Shell was written by John Vanderaart and published in the June/July 1990 issue of PC Thuis Power magazine SeeAlso: AX=0008h --------l-500008----------------------------- INT 50 - PC Thuis Organizer Shell - DO MENU AX = 0008h ES:BX -> menu structure Return: AL = index 1 or FFh if not selected AH = index 2 or FFh if not selected BL = index 3 or FFh if not selected BH = index 4 or FFh if not selected SeeAlso: AX=0005h"PC Thuis",AX=0007h,AX=000Ch --------l-500009----------------------------- INT 50 - PC Thuis Organizer Shell - MESSAGE ON AX = 0009h ES:BX -> message string SeeAlso: AX=000Ah --------l-50000A----------------------------- INT 50 - PC Thuis Organizer Shell - MESSAGE OFF AX = 000Ah SeeAlso: AX=0009h --------l-50000B----------------------------- INT 50 - PC Thuis Organizer Shell - CHANGE ATTRIBUTE AX = 000Bh BL = new attribute CH,CL = row,column of upper left corner DH,DL = row,column of lower right corner DI = window handle --------l-50000C----------------------------- INT 50 - PC Thuis Organizer Shell - DO REQUEST AX = 000Ch ES:BX -> request structure Return: AX = status 0000h confirmed FFFFh denied SeeAlso: AX=0008h --------l-50000D----------------------------- INT 50 - PC Thuis Organizer Shell - EDIT LINE AX = 000Dh ES:BX -> text string CL = length CH = type bit 0: force uppercase bit 1: integer bit 2: no spaces allowed bit 3: no cursor keys DH,DL = row,column of upper left corner DI = window handle Return: AX = result code Program: The PC Thuis Organizer Shell was written by John Vanderaart and published in the June/July 1990 issue of PC Thuis Power magazine --------l-50000E----------------------------- INT 50 - PC Thuis Organizer Shell - PLOT CHARACTER AX = 000Eh BL = character BH = attribute DH,DL = row,column at which to plot DI = window handle Return: AX = status 0000h successful FFFFh errror --------l-50000F----------------------------- INT 50 - PC Thuis Organizer Shell - EMPTY WINDOW AX = 000Fh BL = character BH = attribute DI = window handle --------l-500010----------------------------- INT 50 - PC Thuis Organizer Shell - TRACE MENU AX = 0010h ES:BX -> first menu structure CL = hotkey to look up Return: AL = index 1 or FFh if not selected AH = index 2 or FFh if not selected BL = index 3 or FFh if not selected BH = index 4 or FFh if not selected Index: hotkeys;PC Thuis Organizer Shell --------l-500011----------------------------- INT 50 - PC Thuis Organizer Shell - MOVE MEMORY AX = 0011h DS:SI -> source ES:DI -> destination CX = number of bytes to move (0000h = until NUL string terminator???) SeeAlso: AX=0012h --------l-500012----------------------------- INT 50 - PC Thuis Organizer Shell - COMPARE MEMORY AX = 0012h DS:SI -> source ES:DI -> destination CX = number of bytes to compare (0000h=until NUL string terminator???) Return: AX = status 0000h same FFFFh different SeeAlso: AX=0011h --------l-500013----------------------------- INT 50 - PC Thuis Organizer Shell - GET KEY AX = 0013h CH = type flags bit 0: force uppercase bit 1: integer bit 2: no spaces Return: AX = keystroke --------l-500014----------------------------- INT 50 - PC Thuis Organizer Shell - SCROLL WINDOW AX = 0014h BL = direction 06h up 07h down BH = attribute DI = window handle SeeAlso: INT 10/AH=06h,INT 10/AH=07h --------l-500015----------------------------- INT 50 - PC Thuis Organizer Shell - GET MEMORY HANDLE AX = 0015h BL = handle size 00h 65536 bytes (64K) 01h 65535 bytes (64K-1) 02h 32768 bytes (32K) 03h 32767 bytes (32K-1) Return: AX = segment Program: The PC Thuis Organizer Shell was written by John Vanderaart and published in the June/July 1990 issue of PC Thuis Power magazine SeeAlso: INT 21/AH=48h --------H-51--------------------------------- INT 51 - IRQ1 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview" --------H-51--------------------------------- INT 51 - IRQ1 relocated by IBM 3278 emulation control program SeeAlso: INT 50"IBM 3278",INT 54"IBM 3278" --------H-51--------------------------------- INT 51 - IRQ1 relocated by OS/2 v1.x SeeAlso: INT 50"OS/2",INT 54"OS/2" --------H-52--------------------------------- INT 52 - IRQ2 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview" --------H-52--------------------------------- INT 52 - IRQ2 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 50"IBM 3278",INT 51"OS/2" --------H-53--------------------------------- INT 53 - IRQ3 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview" --------H-53--------------------------------- INT 53 - IRQ3 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 50"IBM 3278",INT 51"OS/2" --------N-53--------------------------------- INT 53 - WEB??? - API BX = function 0000h ??? AX = ??? Return: AX = ??? 0004h ??? 0009h ??? 0015h AX = ??? DX = ??? 0017h Return: ??? Notes: the installation check consists of looking for the signature "WEBCO" immediately prior to the interrupt handler the above calls are made by Show Partner F/X v3.6 (see INT 10/AH=53h) Index: installation check;unknown|installation check;WEBCO --------H-54--------------------------------- INT 54 - IRQ4 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 58"DESQview" --------H-54--------------------------------- INT 54 - IRQ4 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 51"IBM 3278",INT 51"OS/2" --------H-55--------------------------------- INT 55 - IRQ5 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 58"DESQview" --------H-55--------------------------------- INT 55 - IRQ5 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 51"IBM 3278",INT 51"OS/2" --------H-56--------------------------------- INT 56 - IRQ6 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 58"DESQview" --------H-56--------------------------------- INT 56 - IRQ6 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 51"IBM 3278",INT 51"OS/2" --------H-57--------------------------------- INT 57 - IRQ7 relocated by DESQview Note: this is the default location for older versions; see INT 50"DESQview" for details of interrupt relocation SeeAlso: INT 50"DESQview",INT 58"DESQview" --------H-57--------------------------------- INT 57 - IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x SeeAlso: INT 51"IBM 3278",INT 51"OS/2" --------H-58--------------------------------- INT 58 - IRQ8 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 70 --------H-58--------------------------------- INT 58 - IRQ0 relocated by DoubleDOS SeeAlso: INT 08 --------H-59--------------------------------- INT 59 - IRQ9 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 71 --------H-59--------------------------------- INT 59 - IRQ1 relocated by DoubleDOS SeeAlso: INT 09 --------V-59--------------------------------- INT 59 - GSS Computer Graphics Interface (GSS*CGI) DS:DX -> block of 5 array pointers Return: CF set on error AX = error code CF clear if successful AX = return code Note: INT 59 is the means by which GSS*CGI language bindings communicate with GSS*CGI device drivers and the GSS*CGI device driver controller. also used by the IBM Graphic Development Toolkit --------H-5A--------------------------------- INT 5A - IRQ10 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 72 --------H-5A--------------------------------- INT 5A - IRQ2 relocated by DoubleDOS SeeAlso: INT 0A --------N-5A--------------------------------- INT 5A - Cluster adapter BIOS entry address ??? --------H-5B--------------------------------- INT 5B - IRQ11 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 73 --------H-5B--------------------------------- INT 5B - IRQ3 relocated by DoubleDOS SeeAlso: INT 0B --------N-5B--------------------------------- INT 5B - Used by cluster adapter --------N-5B--------------------------------- INT 5B - AT&T Starlan Extended NetBIOS (variable length names) ES:BX -> Network Control Block (see below) Return: AL = status (see INT 5C) SeeAlso: INT 5C Format of Network Control Block Offset Size Description 00h BYTE ncb_command (see below) 01h BYTE ncb_retcode 02h BYTE ncb_lsn 03h BYTE ncb_num 04h DWORD -> ncb_buffer 08h WORD ncb_length 0Ah 16 BYTEs ncb_callname 1Ah 16 BYTEs ncb_name 2Ah BYTE ncb_rto 2Bh BYTE ncb_sto 2Ch DWORD -> ncb_post /* int (far *ncb_post)(); */ 30h BYTE ncb_lana_num 31h BYTE ncb_cmd_cplt 32h DWORD -> ncb_vname 36h BYTE ncb_vnamelen 37h 9 BYTEs ncb_reserve Note: fields 00h-31h are the same as for a standard NetBIOS NCB (see INT 5C) Values for ncb_command field same as for INT 5C, except 70h send net Break --------N-5B--------------------------------- INT 5B - Microsoft Network Transport Layer Interface Note: used by MS-NET for executing network commands SeeAlso: INT 5C"NetBIOS" --------N-5B--------------------------------- INT 5B - used by Alloy NTNX --------N-5B--------------------------------- INT 5B - ISOLAN Multi Protocol Software ES:BX -> Transfer Control Block Return: AL - status Note: this software interface allows multiple protocols/software packages to access a BICC 411x network card Format of Transfer Control Block: Offset Type Description 00h BYTE command code B3h Status F2h Activate F3h Deactivate F4h Send Data 01h BYTE command identity 02h BYTE virtual circuit ID 03h WORD buffer length 05h DWORD buffer pointer 09h BYTE expedited data flag 0Ah BYTE cancelable flag 0Bh 16 BYTEs local network address 1Bh 16 BYTEs remote network address 2Bh DWORD asynchronous notification routine 30h DWORD local network number 34h DWORD remote network number 38h BYTE call timeout 39h BYTE not used 3Ah 8 BYTEs reserved 42h BYTE command code extension 43h WORD Blue Book MAC type ----------5B5254DL04------------------------- INT 5B U - SitBack v3.02R - GET ??? AX = 5254h DL = 04h Return: ES:BX -> ??? in resident portion Program: SitBack is a background file backup utility by SitBack Technologies, Inc. which initiates backups whenever the system is idle SeeAlso: AX=8485h/DL=71h,AX=8485h/DL=72h ----------5B8485DL70------------------------- INT 5B U - SitBack v3.02R - INSTALLATION CHECK AX = 8485h DL = 70h Return: CX = 8485h if installed DX:AX -> ??? (configuration data?) Program: SitBack is a background file backup utility by SitBack Technologies, Inc. which initiates backups whenever the system is idle SeeAlso: AX=5254h/DL=04h,AX=8485h/DL=78h ----------5B8485DL71------------------------- INT 5B U - SitBack v3.02R - SET ??? FLAG AND GET ??? ADDRESS AX = 8485h DL = 71h Return: ES:BX -> FAR entry point to ??? Note: the flag which is modified is located at the address returned by AX=5254h/DL=04h SeeAlso: AX=8485h/DL=72h ----------5B8485DL72------------------------- INT 5B U - SitBack v3.02R - CLEAR ??? FLAG AX = 8485h DL = 72h Note: the flag which is modified is located at the address returned by AX=5254h/DL=04h SeeAlso: AX=8485h/DL=71h ----------5B8485DL73------------------------- INT 5B U - SitBack v3.02R - ??? AX = 8485h DL = 73h ??? Return: ??? ----------5B8485DL74------------------------- INT 5B U - SitBack v3.02R - ??? AX = 8485h DL = 74h ??? Return: ??? ----------5B8485DL75------------------------- INT 5B U - SitBack v3.02R - ??? AX = 8485h DL = 75h CX = ??? Return: ??? SeeAlso: AX=8485h/DL=76h ----------5B8485DL76------------------------- INT 5B U - SitBack v3.02R - ??? AX = 8485h DL = 76h CX = ??? Return: ??? Note: conditionally calls the code for AX=8485h/DL=75h SeeAlso: AX=8485h/DL=75h ----------5B8485DL77------------------------- INT 5B U - SitBack v3.02R - SET ??? FLAG AX = 8485h DL = 77h ----------5B8485DL78------------------------- INT 5B U - SitBack v3.02R - GET RESIDENT DATA SEGMENT AX = 8485h DL = 78h Return: CX = 5342h if supported ES = AX = segment of TSR data SeeAlso: AX=8485h/DL=70h,AX=8485h/DL=79h ----------5B8485DL79------------------------- INT 5B U - SitBack v3.02R - GET DTA AX = 8485h DL = 79h Return: CX = 5342h if supported ES:BX -> DTA set by last INT 21/AH=1Ah Note: this function is provided by SBOS.EXE rather than SB.EXE SeeAlso: INT 21/AH=1Ah ----------5B8485DL7A------------------------- INT 5B U - SitBack v3.02R - TOGGLE ??? AX = 8485h DL = 7Ah Return: CX = 5342h if supported AL = new value of ??? (00h or 01h) --------H-5C--------------------------------- INT 5C - IRQ12 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 74 --------H-5C--------------------------------- INT 5C - IRQ4 relocated by DoubleDOS SeeAlso: INT 0C --------N-5C--------------------------------- INT 5C - NetBIOS INTERFACE ES:BX -> network control block (NCB) (see below) Return: AL = status (see below) Note: Sytek PCnet card uses DMA 3. SeeAlso: INT 2A/AH=01h,INT 2A/AH=04h,INT 5B Values for NetBIOS status: 00h successful 01h bad buffer size 03h invalid NETBIOS command 05h timeout 06h receive buffer too small 07h No-ACK command failed 08h bad session number 09h LAN card out of memory 0Ah session closed 0Bh command has been cancelled 0Dh name already exists 0Eh local name table full 0Fh name still in use, can't delete 11h local session table full 12h remote PC not listening 13h bad NCB_NUM field 14h no answer to CALL or no such remote 15h name not in local name table 16h duplicate name 17h bad delete 18h abnormal end 19h name error, multiple identical names in use 1Ah bad packet 21h network card busy 22h too many commands queued 23h bad LAN card number 24h command finished while cancelling 26h command can't be cancelled 30h name defined by another process (OS/2) 34h NetBIOS environment not defined, must issue reset (OS/2) 35h required operating system resources exhausted (OS/2) 36h maximum applications exceeded (OS/2) 37h no SAPs available for NetBIOS (OS/2) 38h requested resources not available (OS/2) 40h Lana System Error 41h Lana Remote Hot Carrier 42h Lana Local Hot Carrier 43h Lana No Carrier Detected 44h unusual network condition 45h-4Dh hardware error 4Eh token ring is broken 4Fh token ring error 50h adapter malfunction F7h error in explicit INITIALIZE F8h error in implicit OPEN F9h TOKREUI internal error FAh hardware adapter testing FBh NetBIOS emulator not found FCh OPEN or OPEN_SAP failure FDh unexpected adapter closure FFh NetBIOS busy (command pending) Format of Network Control Block: Offset Size Description 00h BYTE command code (see below) 01h BYTE return code 02h BYTE local session number (LSN) 03h BYTE "ncb_num" datagram table entry from ADD NAME 04h DWORD -> I/O buffer 08h WORD length of data in buffer 0Ah 16 BYTEs remote system to call 1Ah 16 BYTEs network name of local machine 2Ah BYTE receive timeout in 1/2 seconds 2Bh BYTE send timeout in 1/2 seconds 2Ch DWORD -> FAR post handler /* int (far *ncb_post)(); */ 30h BYTE network adapter number on which to execute command 00h-03h IBM NetBIOS specs F0h-FFh Eicon NABios interface (see also INT 7B"Eicon") 31h BYTE command completion code (see returned status above) 32h 14 BYTEs reserved for network card Values for command code field in NCB (OR with 80h for non-waiting call): 10h start session with NCB_NAME name (call) 11h listen for call 12h end session with NCB_NAME name (hangup) 14h send data via NCB_LSN 15h receive data from a session 16h receive data from any session 17h send multiple data buffers 20h send unACKed message (datagram) 21h receive datagram 22h send broadcast datagram 23h receive broadcast datagram 30h add name to name table 31h delete name from name table 32h reset adapter card and tables 33h get adapter status (see structure "astatus" below) 34h status of all sessions for name (see structure "sstatus" below) 35h cancel 36h add group name to name table 48h send data and receive data (LAN Manager NETBEUI.DOS) 70h unlink from IBM remote program (no F0h function) 71h send data without ACK 72h send multiple buffers without ACK 72h UngermannBass Register (conflicts with above function) 73h UngermannBass SendNmc 74h UngermannBass Callniu 75h UngermannBass Calladdr 76h UngermannBass Listenaddr 77h UngermannBass SendPkt 78h find name 78h UngermannBass RcvPkt (conflicts with above function) 79h token-ring protocol trace 79h UngermannBass SendAttn (conflicts with above function) 7Ah UngermannBass RcvAttn 7Bh UngermannBass Listenniu 7Ch UngermannBass RcvRaw 7Dh UngermannBass SendNmc2 7Fh Beame&Whiteside BWNB installation check (returns with return code and completion code both set to 03h, while invalid functions return only return code field set to 03h) Format of structure "name": Offset Size Description 00h 16 BYTEs "nm_name" symbolic name 10h BYTE "nm_num" number associated with name 11h BYTE nm_status Format of structure "astatus": Offset Size Description 00h 6 BYTEs as_id 06h BYTE as_jumpers 07h BYTE as_post 08h BYTE as_major 09h BYTE as_minor 0Ah WORD as_interval 0Ch WORD as_crcerr 0Eh WORD as_algerr 10h WORD as_colerr 12h WORD as_abterr 14h DWORD as_tcount 18h DWORD as_rcount 1Ch WORD as_retran 1Eh WORD as_xresrc 20h 8 BYTEs as_res0 28h WORD as_ncbfree 2Ah WORD as_ncbmax 2Ch WORD as_ncbx 2Eh 4 BYTEs as_res1 32h WORD as_sespend 34h WORD as_msp 36h WORD as_sesmax 38h WORD as_bufsize 3Ah WORD as_names 3Ch 16 name structures as_name Format of structure "sstatus": Offset Size Description 00h BYTE number of sessions being reported 01h BYTE number of sessions with this name 02h BYTE number of outstanding receive datagrams 03h BYTE number of outstanding ReceiveAnys 04h var session structures (see below) Format of structure "session": Offset Size Description 00h BYTE local session number 01h BYTE state 01h listen pending 02h call pending 03h session established 04h hangup pending 05h hangup done 06h session aborted 02h 16 BYTEs local name 12h 16 BYTEs remote name 22h BYTE number of outstanding receives 23h BYTE number of outstanding sends/chainsends --------N-5C--------------------------------- INT 5C - TOPS INTERFACE ES:BX -> Network Control Block Note: TOPS card uses DMA 1, 3 or none. --------N-5C--------------------------------- INT 5C - ATALK.SYS - AppleTalk INTERFACE DX:BX -> control block (see below) Return: none Notes: this driver can use any interrupt from 5Ch to 70h the signature 'AppleTalk' appears 16 bytes prior to the interrupt handler; this serves as the installation check Index: installation check;ATALK.SYS|installation check;AppleTalk interface Values for command code: 01h "AT_INIT" initialize the driver 02h "AT_KILL" 03h "AT_GETNETINFO" get current network info incl init status 04h "AT_GETCLOCKTICKS" 05h "AT_STARTTIMER" 06h "AT_RESETTIMER" 07h "AT_CANCELTIMER" 10h "LAP_INSTALL" 11h "LAP_REMOVE" 12h "LAP_WRITE" 13h "LAP_READ" 14h "LAP_CANCEL" 20h "DDP_OPENSOCKET" 21h "DDP_CLOSESOCKET" 22h "DDP_WRITE" 23h "DDP_READ" 24h "DDP_CANCEL" 30h "NBP_REGISTER" 31h "NBP_REMOVE" 32h "NBP_LOOKUP" 33h "NBP_CONFIRM" 34h "NBP_CANCEL" 35h "ZIP_GETZONELIST" 36h "ZIP_GETMYZONE" 37h "ZIP_TAKEDOWN" 38h "ZIP_BRINGUP" 40h "ATP_OPENSOCKET" 41h "ATP_CLOSESOCKET" 42h "ATP_SENDREQUEST" 43h "ATP_GETREQUEST" 44h "ATP_SENDRESPONSE" 45h "ATP_ADDRESPONSE" 46h "ATP_CANCELTRANS" 47h "ATP_CANCELRESPONSE" 48h "ATP_CANCELREQUEST" 50h "ASP_GETPARMS" 51h "ASP_CLOSESESSION" 52h "ASP_CANCEL" 53h "ASP_INIT" 54h "ASP_KILL" 55h "ASP_GETSESSION" 56h "ASP_GETREQUEST" 57h "ASP_CMDREPLY" 58h "ASP_WRTCONTINUE" 59h "ASP_WRTREPLY" 5Ah "ASP_CLOSEREPLY" 5Bh "ASP_NEWSTATUS" 5Ch "ASP_ATTENTION" 5Dh "ASP_GETSTATUS" 5Eh "ASP_OPENSESSION" 5Fh "ASP_COMMAND" 60h "ASP_WRITE" 61h "ASP_GETATTENTION" 70h "PAP_OPEN" 71h "PAP_CLOSE" 72h "PAP_READ" 73h "PAP_WRITE" 74h "PAP_STATUS" 75h "PAP_REGNAME" 76h "PAP_REMNAME" 77h "PAP_INIT" 78h "PAP_NEWSTATUS" 79h "PAP_GETNEXTJOB" 7Ah "PAP_KILL" 7Bh "PAP_CANCEL" Format of AppleTalk control block: Offset Size Description 00h WORD command code (see above) OR with the following flags 8000h start command then return 4000h wait for interrupt service to complete 02h WORD returned status 0000h success (already initialized if func 01h) 04h DWORD pointer to completion function 08h WORD network number 0Ah BYTE node ID ---if general func (01h,03h), control block continues: 0Bh BYTE "inf_abridge" 0Ch WORD "inf_config" 0Eh DWORD pointer to buffer 12h WORD buffer size ---if DDP function (20h-24h), control block continues: 0Bh BYTE "ddp_addr_socket" 0Ch BYTE "ddp_socket" 0Dh BYTE "ddp_type" 0Eh DWORD pointer to buffer 12h WORD buffer size 14h BYTE "ddp_chksum" ---if Name Binding Protocol (30h-34h), control block continues: 0Bh BYTE "nbp_addr_socket" 0Ch WORD "nbp_toget" 0Eh DWORD pointer to buffer 12h WORD buffer size 14h BYTE "nbp_interval" 15h BYTE "nbp_retry" 16h DWORD "nbp_entptr" ---if AppleTalk Transaction Protocol (42h), control block continues: 0Bh BYTE "atp_addr_socket" 0Ch WORD "atp_socket" 0Eh DWORD pointer to buffer 12h WORD buffer size 14h BYTE "atp_interval" 15h BYTE "atp_retry" 16h BYTE ATP flags bit 5: exactly one transaction 17h BYTE "atp_seqbit" 18h BYTE transaction ID 19h 4 BYTEs ATP user bytes 1Dh BYTE number of BDS buffers 1Eh BYTE number of BDS responses 1Fh DWORD pointer to BDS buffers (see below) Format of Name Binding Protocol Name-to-Address binding entries for NBP_LOOKUP: Offset Size Description 00h WORD "tup_address_network" 02h BYTE "tup_address_notid" 03h BYTE "tup_address_socket" 04h BYTE "tup_enum" 05h 99 BYTEs name Format of BDS entries: Offset Size Description 00h DWORD pointer to buffer 04h WORD size of buffer 06h WORD BDS data size 08h 4 BYTEs "bds_userbytes" --------N-5C--------------------------------- INT 5C - IBM 802.2 INTERFACE (LLC) ES:BX -> CCB (see below) Return: none Format of CCB: Offset Size Description 00h BYTE adapter 01h BYTE command code 02h BYTE return code 03h BYTE work 04h DWORD pointer to ??? 08h DWORD pointer to completion function??? 0Ch DWORD pointer to parameters??? --------N-5C--------------------------------- INT 5C - $25 LAN - INSTALLATION CHECK Notes: current versions only check whether the vector is 0000h:0000h or not future versions are supposed to have the signature "NET" in the three bytes preceding the INT 5C handler --------N-5C04------------------------------- INT 5C - $25 LAN - CHECK IF CONNECTION ALIVE AH = 04h AL = COM port (0 = default) CX = wait count in character times (should be at least 100) Return: ZF set if link alive --------H-5D--------------------------------- INT 5D - IRQ13 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 75 --------H-5D--------------------------------- INT 5D - IRQ5 relocated by DoubleDOS SeeAlso: INT 0D,INT 5C"DoubleDOS" --------H-5E--------------------------------- INT 5E - IRQ14 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 76 --------H-5E--------------------------------- INT 5E - IRQ6 relocated by DoubleDOS SeeAlso: INT 0E,INT 5D"DoubleDOS" --------H-5F--------------------------------- INT 5F - IRQ15 relocated by DESQview 2.26+ Note: this is the default, but other INTs may be used (see INT 50"DESQview") SeeAlso: INT 50"DESQview",INT 77 --------H-5F--------------------------------- INT 5F - IRQ7 relocated by DoubleDOS SeeAlso: INT 0F,INT 5E"DoubleDOS" --------b-5F00------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET VIDEO MODE AH = 00h AL = video mode 07h text, system manager compliant 20h 240x128 mono graphics, system manager compliant 87h text, not system manager compliant A0h 240x128 mono graphics, not system manager compliant Note: the defaults after setting the mode to graphics are (0,0) logical origin, full-screen clip region, (0,0) pen location, pen color 1, pixel replacement FORCE, line type and fill mask all bits set SeeAlso: INT 0F"HP 95LX",INT 10/AH=00h,INT 15/AX=4DD4h --------b-5F01------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET FILL MASK AH = 01h ES:DI -> 8-byte fill mask Note: the fill mask represents an 8x8 pixel box and is repeated as necessary when drawing filled rectangles; it is always aligned with the byte boundaries of video memory, regardless of the actual boundaries of the rectangle SeeAlso: AH=02h --------b-5F02------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - GET CURRENT GRAPHICS INFORMATION AH = 02h ES:DI -> graphics info record (see below) Return: DX:AX -> filled graphics info record (for return to high-level langs) Format of graphics info record: Offset Size Description 00h BYTE current video mode 01h BYTE default video mode 02h WORD display width in pixels 04h WORD display height in pixels 06h WORD current pen column 08h WORD current pen row 0Ah WORD current line type 0Ch WORD current replacement rule 0Eh WORD current pen color 10h WORD current leftmost column of clip region 12h WORD current rightmost column of clip region 14h WORD current topmost row of clip region 16h WORD current bottommost row of clip region 18h WORD current column of logical origin 1Ah WORD current row of logical origin 1Ch 8 BYTEs current fill mask --------b-5F03------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET LOGICAL ORIGIN AH = 03h CX = column DX = row SeeAlso: AH=04h --------b-5F04------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET CLIP REGION AH = 04h CX = left-most column DX = top-most row SI = right-most column DI = bottom-most row SeeAlso: AH=03h --------b-5F05------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - DRAW RECTANGLE AH = 05h AL = fill type 00h outline, using current line type and color 01h solid, using current color 02h pattern, using current fill mask and color DX,CX = row,column of other corner of rectangle Note: the rectangle is drawn starting at the current pen position SeeAlso: AH=01h,AH=06h,AH=07h --------b-5F06------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - DRAW LINE AH = 06h DX,CX = row,column of end point Note: the line is drawn starting at the current pen position SeeAlso: AH=05h,AH=07h --------b-5F07------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - PLOT POINT AH = 07h DX,CX = row,column of point Note: also sets pen position to the specified point SeeAlso: AH=06h,AH=08h,AH=0Ch --------b-5F08------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - MOVE PEN AH = 08h DX,CX = row,column of new pen position SeeAlso: AH=07h,AH=09h --------b-5F09------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET PEN COLOR AH = 09h AL = new color (00h = white, 01h = black) SeeAlso: AH=08h,AH=0Ah,AH=0Bh --------b-5F0A------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET REPLACEMENT RULE AH = 0Ah AL = new replacement rule 00h force 01h AND 02h OR 03h XOR SeeAlso: AH=01h,AH=09h,AH=0Bh --------b-5F0B------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - SET LINE TYPE AH = 0Bh CX = new line type Note: the line type specifies 16 bits which are repeated over and over while drawing the pixels of a line SeeAlso: AH=09h,AH=0Ah --------b-5F0C------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - GET PIXEL AH = 0Ch DX,CX = row,column of pixel to read Return: AX = pixel color SeeAlso: AH=07h --------b-5F0D------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - GET IMAGE AH = 0Dh DX,CX = row,column of first corner BP,SI = row,column of second corner ES:DI -> image buffer (see below) Note: the specified corners are included in the saved image SeeAlso: AH=0Eh Format of image buffer: Offset Size Description 00h WORD number of planes (always 01h on HP 95LX) 02h WORD number of bits/pixel (always 01h on HP 95LX) 04h WORD image width in pixels 06h WORD image height in pixels 08h N BYTEs image data requires (WIDTH+7)/8 * HEIGHT bytes --------b-5F0E------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - PUT IMAGE AH = 0Eh AL = replacement rule bit 2: invert image before applying rule bits 1-0: 00 force 01 AND 10 OR 11 XOR DX,CX = row,column of top left corner ES:DI -> image buffer (see AH=0Dh) Note: if the specified image does not fit completely on the screen, this call does nothing SeeAlso: AH=0Dh --------b-5F0F------------------------------- INT 5F - HP 95LX GRAPHICS PRIMITIVES - WRITE TEXT AH = 0Fh AL = rotate flag (if nonzero, rotate 90 degrees counter-clockwise) DX,CX = row,column of first character's top left corner ES:DI -> ASCIZ text --------!------------------------------------