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--- back2root:ibm-pc-ms-dos:interrupts:old:ms_interrupt_list-31-40 [2023/01/05 04:01] – supprimée - modification externe (Unknown date) 127.0.0.1
+++ back2root:ibm-pc-ms-dos:interrupts:old:ms_interrupt_list-31-40 [2023/01/05 04:01] (Version actuelle) – créée - modification externe 127.0.0.1
@@ Ligne 1: / Ligne 1: @@
+====== MSDOS - Interrupt List 31h-40h ======
+===== INT 31 - overwritten by CP/M jump instruction in INT 30 =====
+----------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+)
+h-7FFFh DOS error passed through by DPMI
+h unsupported function
+h object in wrong state for function
+h system integrity would be endangered
+h deadlock detected
+h pending serialization request cancelled
+h out of DPMI internal resources
+h descriptor unavailable
+h linear memory unavailable
+h physical memory unavailable
+h backing store unavailable
+h callback unavailable
+h handle unavailable
+h maximum lock count exceeded
+h shared memory already serialized exclusively by another
+h shared memory already serialized shared by another client
+h invalid value for numeric or flag parameter
+h invalid segment selector
+h invalid handle
+h invalid callback
+h invalid linear address
+h request not supported by hardware
+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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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/AH=E9h"OS/286"
+----------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/AH=E9h"OS/286"
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+h	WORD	selector (set by client)
+h	QWORD	descriptor (set by host)
+----------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
+h	WORD	selector
+h	QWORD	descriptor
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+h	DWORD	return CS:IP (do not change)
+h	WORD	error code
+h	DWORD	CS:IP of exception
+Ah	WORD	flags
+Ch	DWORD	SS:SP
+Format of stack frame for 32-bit programs: (offset from SS:ESP)
+Offset	Size	Description
+h	DWORD	return EIP (do not change)
+h	WORD	return CS selector (do not change)
+h	WORD	reserved (do not change)
+h	DWORD	error code
+Ch	DWORD	EIP of exception
+h	WORD	CS selector of exception
+h	WORD	reserved (do not change)
+h	DWORD	EFLAGS
+h	DWORD	ESP
+Ch	WORD	SS
+Eh	WORD	reserved (do not change)
+----------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
+----------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
+-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
+----------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
+----------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
+----------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
+----------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
+----------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
+h	DWORD	EDI
+h	DWORD	ESI
+h	DWORD	EBP
+Ch	DWORD	reserved (00h)
+h	DWORD	EBX
+h	DWORD	EDX
+h	DWORD	ECX
+Ch	DWORD	EAX
+h	WORD	flags
+h	WORD	ES
+h	WORD	DS
+h	WORD	FS
+h	WORD	GS
+Ah	WORD	IP
+Ch	WORD	CS
+Eh	WORD	SP
+h	WORD	SS
+----------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"
+----------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
+----------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
+----------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
+----------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
+-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
+h save state
+h restore state
+	ES:DI / ES:EDI -> state buffer
+Return: all registers preserved
+----------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
+----------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
+----------310401-----------------------------
+INT 31 P - DPMI 1.0+ - GET DPMI CAPABILITIES
+	AX = 0401h
+	ES:(E)DI -> 128-byte buffer (see below)
+Return: CF clear if successful
+	    AX = capabilities
+		bit 0: paged accessed/dirty supported (see AX=0506h,AX=0507h)
+: exceptions restartability supported
+: device mapping supported (see AX=0508h)
+: conventional memory mapping supported (see AX=0509h)
+: demand zero-fill supported
+: write-protect client capability supported
+: write-protect host capability supported
+-15: reserved
+	    CX = reserved (00h)
+	    DX = reserved (00h)
+	    buffer filled
+	CF set on error (DPMI 0.9 only)
+SeeAlso: AX=0400h
+Format of buffer:
+Offset	Size	Description
+h	BYTE	host major version number
+h	BYTE	host minor version number
+h 126 BYTEs	ASCIZ host vendor name
+----------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
+h	DWORD	largest available block in bytes
+h	DWORD	maximum unlocked page allocation
+h	DWORD	maximum locked page allocation
+Ch	DWORD	total linear address space in pages
+h	DWORD	total unlocked pages
+h	DWORD	free pages
+h	DWORD	total physical pages
+Ch	DWORD	free linear address space in pages
+h	DWORD	size of paging file/partition in pages
+h 12 BYTEs	reserved
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+uncommitted
+committed
+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)
+----------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
+----------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
+----------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
+----------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
+----------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
+h	DWORD	total allocated bytes of physical memory controlled by host
+h	DWORD	total allocated bytes of virtual memory controlled by host
+h	DWORD	total available bytes of virtual memory controlled by host
+Ch	DWORD	total allocated bytes of virtual memory for curr virtual mach
+h	DWORD	total available bytes of virtual memory for curr virtual mach
+h	DWORD	total allocated bytes of virtual memory for current client
+h	DWORD	total available bytes of virtual memory for current client
+Ch	DWORD	total locked bytes for current client
+h	DWORD	maximum locked bytes for current client
+h	DWORD	highest linear address available to current client
+h	DWORD	largest available memory block in bytes
+Ch	DWORD	minimum allocation unit in bytes
+h	DWORD	allocation alignment unit size in bytes
+h 76 BYTEs	reserved (00h)
+----------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
+----------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
+----------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
+----------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
+----------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+)
+h unsupported, 16-bit host
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+----------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
+h	QWORD	descriptor for 16-bit data segment
+h	QWORD	descriptor for 16-bit code segment (zeros if not supported)
+h	WORD	offset of 16-bit callback procedure
+h  2 BYTEs	reserved
+h	QWORD	descriptor for 32-bit data segment
+Ch	QWORD	descriptor for 32-bit code segment (zeros if not supported)
+h	DWORD	offset of 32-bit callback procedure
+----------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
+----------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
+h	DWORD	requested length of shared memory block in bytes
+h	DWORD	(return) allocated length of block
+h	DWORD	(return) shared memory handle
+Ch	DWORD	(return) linear address of memory block
+h  6 BYTEs	selector:offset32 of ASCIZ name for memory block
+		(name max 128 bytes)
+h  2 BYTEs	reserved
+h  4 BYTEs	reserved (00h)
+----------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
+----------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
+: shared rather than exclusive serialization
+-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
+----------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
+----------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
+none
+80287
+80387
+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
+----------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
+----------32---------------------------------
+INT 32 - VIRUS - reportedly used by "Tiny" Viruses
+SeeAlso: INT 60"VIRUS"
+----------330000-----------------------------
+INT 33 - MS MOUSE - RESET DRIVER AND READ STATUS
+	AX = 0000h
+Return: AX = status
+h hardware/driver not installed
+	    FFFFh hardware/driver installed
+	BX = number of buttons
+h other than two
+h two buttons (many drivers)
+h 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=0021h,INT 62/AX=007Ah,INT 74
+----------330001-----------------------------
+INT 33 - MS MOUSE - SHOW MOUSE CURSOR
+	AX = 0001h
+SeeAlso: AX=0002h,INT 16/AX=FFFEh,INT 62/AX=007Bh
+----------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
+----------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"
+----------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
+----------330005-----------------------------
+INT 33 - MS MOUSE - RETURN BUTTON PRESS DATA
+	AX = 0005h
+	BX = button
+h left
+h right
+h 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
+----------330006-----------------------------
+INT 33 - MS MOUSE - RETURN BUTTON RELEASE DATA
+	AX = 0006h
+	BX = button
+h left
+h right
+h 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
+----------330007-----------------------------
+INT 33 - MS MOUSE - DEFINE HORIZONTAL CURSOR RANGE
+	AX = 0007h
+	CX = minimum column
+	DX = maximum column
+SeeAlso: AX=0008h,AX=0010h,INT 62/AX=0080h
+----------330008-----------------------------
+INT 33 - MS MOUSE - DEFINE VERTICAL CURSOR RANGE
+	AX = 0008h
+	CX = minimum row
+	DX = maximum row
+SeeAlso: AX=0007h,AX=0010h,INT 62/AX=0080h
+----------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
+words screen mask
+words cursor mask
+		    each word defines the sixteen pixels of a row, low bit
+		    rightmost
+SeeAlso: AX=000Ah,AX=0012h,INT 62/AX=007Fh
+----------33000A-----------------------------
+INT 33 - MS MOUSE - DEFINE TEXT CURSOR
+	AX = 000Ah
+	BX = hardware/software text cursor
+h software
+		CX = screen mask
+		DX = cursor mask
+h 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
+----------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
+----------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
+----------33000D-----------------------------
+INT 33 - MS MOUSE - LIGHT PEN EMULATION ON
+	AX = 000Dh
+SeeAlso: AX=000Eh
+----------33000E-----------------------------
+INT 33 - MS MOUSE - LIGHT PEN EMULATION OFF
+	AX = 000Eh
+SeeAlso: AX=000Dh
+----------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
+----------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"
+----------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 presumably been changed
+	  to conform to the Microsoft version shown above
+SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"MS MOUSE"
+Format of update region list:
+Offset	Size	Description
+h	WORD	left-most column
+h	WORD	top-most row
+h	WORD	right-most column
+h	WORD	bottom-most row
+----------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
+----------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
+----------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=0018h
+----------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
+----------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
+----------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
+----------330018-----------------------------
+INT 33 - MS MOUSE - SET ALTERNATE MOUSE USER HANDLER
+	AX = 0018h
+	CX = call mask
+	     bit 0 call if alt key pressed during event
+	     bit 1 call if ctrl key pressed during event
+	     bit 2 call if shift button pressed during event
+	     bit 3 call if right button released
+	     bit 4 call if right button pressed
+	     bit 5 call if left button released
+	     bit 6 call if left button pressed
+	     bit 7 call if mouse moves
+	ES:DX = address of 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
+	  DI = horizontal mickey count
+	  SI = vertical mickey count
+	up to three handlers can be defined by separate calls to this function
+SeeAlso: AX=0014h,AX=0019h
+----------330019-----------------------------
+INT 33 - MS MOUSE - RETURN USER ALTERNATE INTERRUPT VECTOR
+	AX = 0019h
+	CX = call mask
+Return: BX:DX = user interrupt vector
+	CX = call mask (0 if not found)
+Note:	attempts to find a user event handler (defined by function 18h)
+	  whose call mask matches CX
+SeeAlso: AX=0018h
+----------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
+----------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
+----------33001C-----------------------------
+INT 33 - MS MOUSE - SET INTERRUPT RATE
+	AX = 001Ch
+	BX = rate
+h no interrupts allowed
+h 30 per second
+h 50 per second
+h 100 per second
+h 200 per second
+Notes:	only available on InPort mouse
+	values greater than 4 may cause unpredictable driver behavior
+----------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
+----------33001E-----------------------------
+INT 33 - MS MOUSE - RETURN DISPLAY PAGE NUMBER
+	AX = 001Eh
+Return: BX = display page number
+SeeAlso: AX=001Dh
+----------33001F-----------------------------
+INT 33 - MS MOUSE - DISABLE MOUSE DRIVER
+	AX = 001Fh
+Return: AX = 001Fh unsuccessful
+	     FFFFh successful
+	ES:BX = vector for INT 33h before mouse driver was first installed
+Note:	restores vectors for Int 10h and Int 71h (8086) or Int 74h (286/386)
+	if you restore Int 33h to ES:BX, driver will be completely disabled
+SeeAlso: AX=0020h
+----------330020-----------------------------
+INT 33 - MS MOUSE - ENABLE MOUSE DRIVER
+	AX = 0020h
+Return: AX = 0020h unsuccessful (or driver not installed)
+	     FFFFh successful
+Note:	restores vectors for Int 10h and Int 71h (8086) or Int 74h (286/386)
+	  which were removed by function 1Fh
+SeeAlso: AX=001Fh
+----------330021-----------------------------
+INT 33 - MS MOUSE - SOFTWARE RESET
+	AX = 0021h
+Return: AX = FFFFh if mouse driver installed
+h if mouse driver not installed
+	BX = 2 if mouse driver is installed
+Note:	identical to funtion 00h, but does not reset the mouse
+SeeAlso: AX=0000h
+----------330022-----------------------------
+INT 33 - MS MOUSE - SET LANGUAGE FOR MESSAGES
+	AX = 0022h
+	BX = language
+h English
+h French
+h Dutch
+h German
+h Swedish
+h Finnish
+h Spanish
+h Portugese
+h Italian
+Note:	only available on international versions of the driver, US versions
+	  ignore this call
+SeeAlso: AX=0023h
+----------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
+----------330024-----------------------------
+INT 33 - MS MOUSE v7.00+ - GET SOFTWARE VERSION AND MOUSE TYPE
+	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
+----------330025-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 0025h
+Return: AL = ???
+	BX = ???
+	CX = ???
+	DX = ???
+----------330026-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 0026h
+Return: BX = ???
+	CX = ???
+	DX = ???
+Note:	called by the newest Microsoft applications
+----------330027-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 0027h
+Return: AX = ???
+	BX = ???
+	CX = horizontal mickeys moved since last call
+	DX = vertical mickeys moved since last call
+----------330028-----------------------------
+INT 33 - MS MOUSE v8.10+ - ???
+	AX = 0028h
+	CX = ???
+h reset to default???
+	    other
+	    	DX = ???
+		Return: CL = 00h
+----------330029-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET SUPPORTED VIDEO MODES???
+	AX = 0029h
+	CX = last video mode???
+h get first
+	    other get next supported mode after mode CX
+Return: CX = first/next video mode
+	ES:DX = 0000h:0000h
+----------33002A-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 002Ah
+Return: AX = ???
+	BX = ???
+	CX = ???
+	DX = ???
+----------33002B-----------------------------
+INT 33 - MS MOUSE v8.10+ - SET ACCELERATION PROFILES
+	AX = 002Bh
+	BX = active acceleration profile (0001h-0004h or FFFFh for current)
+	ES:SI -> buffer containing acceleration profile data (see below)
+Return: ???
+SeeAlso: AX=002Ch"v8.10",AX=002Dh,AX=0033h
+Format of acceleration profile data:
+Offset	Size	Description
+h	BYTE	length of acceleration profile 1
+h	BYTE	length of acceleration profile 2
+h	BYTE	length of acceleration profile 3
+h	BYTE	length of acceleration profile 4
+h 32 BYTEs	threshold speeds for acceleration profile 1
+h 32 BYTEs	threshold speeds for acceleration profile 2
+h 32 BYTEs	threshold speeds for acceleration profile 3
+h 32 BYTEs	threshold speeds for acceleration profile 4
+h 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)
+h 16 BYTEs	name of acceleration profile 1 (blank-padded)
+h 16 BYTEs	name of acceleration profile 2 (blank-padded)
+h 16 BYTEs	name of acceleration profile 3 (blank-padded)
+h 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
+----------33002C-----------------------------
+INT 33 - MS MOUSE v??? - SET ACCELERATION PROFILES
+	AX = 002Ch
+	ES:DX -> name of file containing profiles
+Note:	see MOUSEPRO.FIL for an example set of acceleration profiles
+SeeAlso: AX=0013h,AX=002Dh,AX=002Eh
+----------33002C-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ACCELERATION PROFILES
+	AX = 002Ch
+Return: AX = 0000h
+	BX = currently-active acceleration profile
+	ES:SI -> acceleration profile data (see AX=002Bh)
+SeeAlso: AX=002Bh,AX=0033h
+----------33002D-----------------------------
+INT 33 - MS MOUSE v8.10+ - SELECT ACCELERATION PROFILE
+	AX = 002Dh
+	BX = acceleration level (0001h to 0004h or FFFFh for current)
+Return: AX = status
+h successful
+	    	ES:SI -> 16-byte blank-padded name of acceleration profile
+	    FFFEh invalid acceleration level
+	    	ES:SI destroyed
+	BX = active acceleration level
+SeeAlso: AX=0013h,AX=002Bh,AX=002Ch,AX=002Eh
+----------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 = 0000h
+	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
+----------33002F-----------------------------
+INT 33 - MS MOUSE v8.10+ - ???
+	AX = 002Fh
+	???
+Return: ???
+Note:	invoked by mouse driver v8.20 on being called with INT 2F/AX=530Bh
+SeeAlso: INT 2F/AH=53h
+----------330030-----------------------------
+INT 33 - MS MOUSE v8.10+ - ???
+	AX = 0030h
+	CX = ???
+h ???
+	    other ???
+Return: ???
+----------330031-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 0031h
+Return: AX = ???
+	BX = ???
+	CX = ???
+	DX = ???
+----------330032-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ???
+	AX = 0032h
+Return: AX = ??? (FFFFh)
+	BX = ??? (0000h)
+	CX = ??? (E000h)
+	DX = ??? (0000h)
+----------330033-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET ACCELERATION PROFILE DATA
+	AX = 0033h
+	CX = size of buffer
+h 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
+			ES:DX buffer filled (see below)
+SeeAlso: AX=002Bh
+Format of data buffer:
+Offset	Size	Description
+h 16 BYTEs	???
+h 324 BYTEs	acceleration profile data (see AX=002Bh)
+h  5 BYTEs	??? (Microsoft driver, but not Logitech)
+----------330034-----------------------------
+INT 33 - MS MOUSE v8.10+ - GET INITIALIZATION FILE
+	AX = 0034h
+Return: ES:DX -> ASCIZ initialization (.INI) file name
+----------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
+----------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
+SeeAlso: AX=0015h,AX=0050h,AX=0052h
+----------330043-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - CONFIGURE MOUSE???
+	AX = 0043h
+	CX:BX -> ??? buffer (see below)
+	DL = ???
+Return: ???
+Note:	also calls routines for INT 33/AX=0053h and INT 33/AX=004Fh
+Format of buffer:
+Offset	Size	Description
+h	WORD	I/O port address
+h  	BYTE	???
+h	BYTE	interrupt number
+h	BYTE	interrupt mask for interrupt controller
+h  5 BYTEs	???
+----------330044CXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - TOGGLE ???
+	AX = 0044h
+	CX = CDEFh
+Return: AX = new state of ???
+SeeAlso: AX=0045h
+----------330045CXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - TOGGLE ???
+	AX = 0045h
+	CX = CDEFh
+Return: AX = new state of ???
+SeeAlso: AX=0044h
+----------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: ???
+SeeAlso: AX=0067h
+----------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)
+---------------------------------------------
+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"
+----------33004CBXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - SET ??? FLAG
+	AX = 004Ch
+	BX = CDEFh
+SeeAlso: AX=006Ch
+----------33004D-----------------------------
+INT 33 - MS MOUSE, LOGITECH - RETURN POINTER TO COPYRIGHT STRING
+	AX = 004Dh
+Return: ES:DI -> copyright message "Copyright 1983 Microsoft ***"
+Note:	also supported by Kraft mouse driver
+SeeAlso: AX=0024h,AX=006Dh
+----------33004F-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ENABLE MOUSE
+	AX = 004Fh
+Return: nothing
+SeeAlso: AX=0043h,AX=0053h
+----------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
+Note:	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
+SeeAlso: AX=0042h,AX=0052h
+----------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
+SeeAlso: AX=0050h
+----------330053-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - DISABLE MOUSE
+	AX = 0053h
+Return: nothing
+SeeAlso: AX=0043h,AX=004Fh
+----------330054CXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 0054h
+	CX = CDEFh
+	BX = ??? (NOP if <= 0000h)
+Return: ???
+----------330055-----------------------------
+INT 33 - Kraft Mouse - GET ???
+	AX = 0055h
+Return: CX = ???
+	DX = ???
+	ES = ???
+----------330058-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 0058h
+Return: AX = CS of driver
+	CX:BX -> ???
+	DX = ???
+----------33005A-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 005Ah
+	CX = number of WORDs to copy (max 0014h, but not range-checked)
+	DX:SI -> buffer containing ??? (CX words)
+	DX:BX -> buffer containing ??? (9*14h words, only first CX of each 14h
+					used)
+	???
+Return: CF clear
+	???
+----------330061BXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 0061h
+	BX = CDEFh
+Return: CX = ???
+----------330067-----------------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - GET MOUSE BUTTONS???
+	AX = 0067h
+Return: BL = number of buttons???
+SeeAlso: AX=0047h
+----------33006CBXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 006Ch
+	BX = CDEFh
+SeeAlso: AX=004Ch
+----------33006D-----------------------------
+INT 33 - MS MOUSE, Logitech - GET VERSION STRING
+	AX = 006Dh
+Return: ES:DI -> Microsoft version number of resident driver
+Note:	also supported by Mouse Systems and Kraft mouse drivers
+SeeAlso: AX=004Dh,AX=266Ch
+----------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:	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
+h	WORD	signature ABCDh
+h	DWORD	pointer to info structure???
+h  2 BYTEs	???
+h	WORD	signature ABCDh
+Format of info structure:
+Offset	Size	Description
+h	WORD	driver version
+h  8 BYTEs	???
+Ah	WORD	segment of ???
+ 	???
+----------330072BXABCD-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - ???
+	AX = 0072h
+	BX = ABCDh
+Return: ???
+----------330073BXCDEF-----------------------
+INT 33 - Mouse Systems MOUSE DRIVER v7.01 - GET BUTTON ASSIGNMENTS???
+	AX = 0073h
+	BX = CDEFh
+	ES:DX -> buffer for button assignments??? (3 bytes of data)
+Return: CX = number of buttons???
+Note:	the default return buffer is "LMR"
+SeeAlso: AX=0067h
+----------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
+----------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
+----------33136C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 136Ch
+	BX = ???
+Return: AX = ???
+	BX = ???
+----------33146C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - GET/SET ???
+	AX = 146Ch
+	BL = function
+h set ???
+	    	BH = new value (zero/nonzero to clear/set)
+	    else get ???
+	    	Return: ???
+----------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
+----------33166C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 166Ch
+	BL = ???
+h ???
+h ???
+	    other ???
+	    	BH = new value of ???
+		Return: AX = FFFFh
+----------33176C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 176Ch
+	???
+Return: ???
+----------33186C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 186Ch
+	???
+Return: ???
+----------33196C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 196Ch
+	???
+Return: ???
+----------331A6C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - GET ???
+	AX = 1A6Ch
+Return: AX = FFFFh
+	BX = ???
+	CX = ???
+SeeAlso: AX=1B6Ch
+----------331B6C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - SET ???
+	AX = 1B6Ch
+	BX = new value for ??? (0000h-0003h)
+Return: AX = FFFFh
+SeeAlso: AX=1A6Ch
+----------331C6C-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 1C6Ch
+	BX = ???
+		<42h ???
+		=42h ???
+		>42h ???
+			ES:DI -> ???
+			Return: AX = ???
+----------331D6C-----------------------------
+INT 33 - LOGITECH MOUSE - GET COMPASS PARAMETER
+	AX = 1D6Ch
+Return: BX = direction (0=north, 1=south, 2=east, 3=west)
+SeeAlso: AX=1E6Ch
+----------331E6C-----------------------------
+INT 33 - LOGITECH MOUSE - SET COMPASS PARAMETER
+	AX = 1E6Ch
+	BX = direction (0=north, 1=south, 2=east, 3=west)
+SeeAlso: AX=1D6Ch
+----------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
+----------33206C-----------------------------
+INT 33 - LOGITECH MOUSE - SET LEFT OR RIGHT PARAMETER
+	AX = 206Ch
+	BX = parameter (00h = right, FFh = left)
+SeeAlso: AX=216Ch
+----------33216C-----------------------------
+INT 33 - LOGITECH MOUSE - GET LEFT OR RIGHT PARAMETER
+	AX = 216Ch
+Return: BX = parameter (00h = right, FFh = left)
+SeeAlso: AX=206Ch
+----------33226C-----------------------------
+INT 33 - LOGITECH MOUSE - REMOVE DRIVER FROM MEMORY
+	AX = 226Ch
+Note:	this only frees memory; does not restore hooked interrupts
+----------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
+----------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
+Format of parameter table:
+Offset	Size	Description
+h	WORD	baud rate divided by 100  (serial mouse only)
+h	WORD	emulation		  (serial mouse only)
+h	WORD	report rate		  (serial mouse only)
+h	WORD	firmware revision	  (serial mouse only)
+h	WORD	0			  (serial mouse only)
+Ah	WORD	port			  (serial mouse only)
+Ch	WORD	physical buttons
+Eh	WORD	logical buttons
+----------33256CBX00h -----------------------
+INT 33 - LOGITECH MOUSE - SET PARAMETERS
+	AX = 256Ch
+	BX = 00h set baud rate (serial mouse only)
+		CX = rate (0=1200, 1=2400, 2=4800, 3=9600)
+	   = 01h set emulation (serial mouse only)
+		CX = emulation
+= 5 byte packed binary
+= 3 byte packed binary
+= hexadecimal
+= relative bit pad
+= not supported
+= MM Series
+= not supported
+= Microsoft
+	   = 02h set report rate (serial mouse only)
+		CX = rate (0=10, 1=20, 2=35, 3=50, 4=70, 5=100, 6=150)
+	   = 03h set port (serial mouse only)
+		CX = port (1, 2)
+	   = 04h set mouse logical buttons
+		CX = buttons (2, 3)
+Return: AX = FFFFh if driver installed for serial mouse
+SeeAlso: AX=246Ch,AX=276Ch
+----------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
+----------33276C-----------------------------
+INT 33 - LOGITECH MOUSE - ??? Tries MMSeries, Baud 2400
+	AX = 276Ch
+SeeAlso: AX=256Ch
+----------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
+----------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
+----------333001-----------------------------
+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
+----------333003-----------------------------
+INT 33 - Smooth Mouse Driver, PrecisePoint - GET INFORMATION
+	AX = 3003h
+	BL = data structure selector
+h Primary Bitmap (used for 25 line mode)
+h Secondary Bitmap (used for 43/50 line modes)
+h Sacrifice Character Map
+h Program Information
+Return: ES:DI -> selected data structure
+SeeAlso: AX=3000h
+Format of Primary/Secondary Bitmap [SMD_BITMAP_STRUCT]
+Offset	Size	Description
+h	BYTE	vertical size of bitmap (00h - 10h)
+h	BYTE	horizontal size of bitmap (00h - 10h)
+h	BYTE	vertical hotspot position (00h - 10h)
+h	BYTE	horizontal hotspot position (00h - 10h)
+h 16 WORDs	cursor bitmap data
+h 16 WORDs	screen bitmap data
+Format of Sacrifice Character Map [SMD_SMAP_STRUCT]
+Offset	Size	Description
+h	BYTE	bytes are character values (00h-FFh) used in place of the
+h	BYTE	actual character for the corresponding position on the screen
+h	BYTE	     +--------------+	  occupied by part or all of the mouse
+h	BYTE	     | 0h | 1h | 2h |	  cursor
+h	BYTE	     |----+----+----|
+h	BYTE	     | 3h | 4h | 5h |
+h	BYTE	     |----+----+----|
+h	BYTE	     | 6h | 7h | 8h |
+h	BYTE	     +--------------+
+Format of Program Information [SMD_INFO_STRUCT]
+Offset	Size	Description
+h	WORD	segment of old interrupt 33h handler
+h	WORD	offset of old interrupt 33h handler
+h	WORD	PSP of SMD
+h	BYTE	ENABLE/DISABLE manual setting status
+h	BYTE	ENABLE/DISABLE internal usage status
+----------333004-----------------------------
+INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
+	AX = 3004
+SeeAlso: AX=3000h
+----------333005-----------------------------
+INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
+	AX = 3005
+SeeAlso: AX=3000h
+----------334F00-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - GET ???
+	AX = 4F00h
+Return: AX = 004Fh if supported
+	BX = ???
+	ES:DI -> ???
+SeeAlso: AX=4F01h
+----------334F01-----------------------------
+INT 33 - LOGITECH MOUSE v6.10+ - ???
+	AX = 4F01h
+	ES = ???
+Return: AX = 004Fh if supported
+	ES:DI -> ???
+SeeAlso: AX=4F00h
+----------34---------------------------------
+INT 34 - FLOATING POINT EMULATION - OPCODE D8h
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 35,INT 3E
+----------35---------------------------------
+INT 35 - FLOATING POINT EMULATION - OPCODE D9h
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 34,INT 36
+----------36---------------------------------
+INT 36 - FLOATING POINT EMULATION - OPCODE DAh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 35,INT 37
+----------37---------------------------------
+INT 37 - FLOATING POINT EMULATION - OPCODE DBh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 36,INT 38
+----------38---------------------------------
+INT 38 - FLOATING POINT EMULATION - OPCODE DCh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 37,INT 39
+----------39---------------------------------
+INT 39 - FLOATING POINT EMULATION - OPCODE DDh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 38,INT 3A
+----------3A---------------------------------
+INT 3A - FLOATING POINT EMULATION - OPCODE DEh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 39,INT 3B
+----------3B---------------------------------
+INT 3B - FLOATING POINT EMULATION - OPCODE DFh
+Note:	the floating-point emulators in Borland and Microsoft languages and
+	  Lahey FORTRAN use this interrupt
+SeeAlso: INT 3A,INT 3C
+----------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:
+-> DS:
+-> SS:
+-> CS:
+-> ES:
+SeeAlso: INT 3B,INT 3D
+----------3D---------------------------------
+INT 3D - FLOATING POINT EMULATION - STANDALONE FWAIT
+Note:	the floating-point emulators in Borland and Microsoft languages use
+	  this interrupt
+SeeAlso: INT 3C,INT 3E
+----------3E---------------------------------
+INT 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL
+Note:	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)
+SeeAlso: INT 3D
+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
+----------3F---------------------------------
+INT 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM)
+Note:	INT 3F is the default, and may be overridden while linking
+SeeAlso: INT FE"OVERLAY"
+----------3F---------------------------------
+INT 3F - Microsoft Dynamic Link Library manager
+SeeAlso: INT 21/AH=4Bh
+---------------------------------------------
+Interrupt List, part 6 of 7
+This compilation is Copyright (c) 1989,1990,1991,1992 Ralf Brown
+----------40---------------------------------
+INT 40 - DISKETTE - ROM BIOS DISKETTE HANDLER RELOCATED BY HARD DISK BIOS
+SeeAlso: INT 13,INT 63
+----------40---------------------------------
+INT 40 - Z100 - Master 8259 - Parity error or S100 error
+SeeAlso: INT 41"Z100",INT FF"Z100"

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