home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Night Owl 6
/
Night Owl's Shareware - PDSI-006 - Night Owl Corp (1990).iso
/
008a
/
intr26a.zip
/
INTERRUP.B
< prev
next >
Wrap
Text File
|
1991-06-15
|
226KB
|
6,031 lines
Interrupt List, part 2 of 5
This compilation is Copyright (c) 1989,1990,1991 Ralf Brown
----------1500-------------------------------
INT 15 - CASSETTE - TURN ON TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 00h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=01h"CASSETTE"
----------1500-------------------------------
INT 15 - Amstrad PC1512 - GET AND RESET MOUSE COUNTS
AH = 00h
Return: CX = signed X count
DX = signed Y count
----------1500-------------------------------
INT 15 - VMiX v2+ - INSTALLATION CHECK???
AH = 00h
Return: DX = 0798h???
----------1500-------------------------------
INT 15 - MultiDOS Plus - GIVE UP TIME SLICE
AH = 00h
Note: if issued by the highest-priority task while MultiDOS is using
priority-based rather than round-robin scheduling, control will be
returned to the caller immediately
SeeAlso: AH=03h"MultiDOS",AX=1000h
----------1501-------------------------------
INT 15 - CASSETTE - TURN OFF TAPE DRIVE'S MOTOR (PC and PCjr only)
AH = 01h
Return: CF set on error
AH = 86h no cassette present
CF clear if successful
SeeAlso: AH=00h"CASSETTE"
----------1501-------------------------------
INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM
AH = 01h
AL = NVRAM location (00h to 3Fh)
BL = NVRAM data value
Return: AH = return code
00h OK
01h address bad
02h write error
SeeAlso: AH=02h"Amstrad"
Format of NVRAM:
Offset Size Description
00h BYTE time of day: seconds
01h BYTE alarm time: seconds
02h BYTE time of day: minutes
03h BYTE alarm time: minutes
04h BYTE time of day: hours
05h BYTE alarm time: hours
06h BYTE day of week, 1 = Sunday
07h BYTE day of month
08h BYTE month
09h BYTE year mod 100
0Ah BYTE RTC status register A
bit 7: set if date/time being updated
6-4: time base speed, default 010 = 32768 Hz
3-0: interrupt rate selection, default 0110 = 1024 Hz
0Bh BYTE RTC status register B
bit 7: clear if normal update, set if abort update
6: periodic interrupt enable
5: alarm interrupt enable
4: update end interrupt enable
3: square wave enable
2: date mode (clear = BCD, set = binary)
1: 24-hour format
0: daylight saving time enable
0Ch BYTE RTC status register C (read-only)
bit 7: IRQF flag
6: PF flag
5: AF flag
4: UF flag
0Dh BYTE RTC status register D
bit 7: battery good
0Eh 6 BYTEs time and date machine last used
14h BYTE user RAM checksum
15h WORD Enter key scancode/ASCII code
17h WORD Forward delete key scancode/ASCII code
19h WORD Joystick fire button 1 scancode/ASCII code
1Bh WORD Joystick fire button 2 scancode/ASCII code
1Dh WORD mouse button 1 scancode/ASCII code
1Fh WORD mouse button 2 scancode/ASCII code
21h BYTE mouse X scaling factor
22h BYTE mouse Y scaling factor
23h BYTE initial VDU mode and drive count
24h BYTE initial VDU character attribute
25h BYTE size of RAM disk in 2K blocks
26h BYTE initial system UART setup byte
27h BYTE initial external UART setup byte
28h 24 BYTEs available for user application
Note: bytes 00h-0Dh are the same on the IBM AT as they are used/updated by
the clock chip
----------1501-------------------------------
INT 15 - VMiX - I/O CHANNEL OBJECT MANAGER
AH = 01h
STACK: WORD object ID of requestor
DWORD pointer to name of requested method
WORD arg1
WORD arg2
WORD arg3
WORD arg4
Return: DX:AX??? -> IRP structure or 0000h:0000h
----------1501-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE
AH = 01h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
02h invalid semaphore number
Notes: if the semaphore is not owned, ownership is assigned to the calling
task and the call returns immediately
if the semaphore is already owned by another task, the calling task
is placed on a queue for the semaphore and suspended until it can
become owner of the semaphore
semaphore 0 is used internally by MultiDOS to synchronize DOS access
SeeAlso: AH=02h"MultiDOS",AH=10h"MultiDOS",AH=1Bh"MultiDOS"
----------1502-------------------------------
INT 15 - CASSETTE - READ DATA
AH = 02h
CX = number of bytes to read
ES:BX -> buffer
Return: CF clear if successful
DX = number of bytes read
ES:BX -> byte following last byte read
CF set on error
AH = status
00h successful
01h CRC error
02h bad tape signals
04h no data
80h invalid command
86h no cassette present
SeeAlso: AH=00h"CASSETTE",AH=03h"CASSETTE"
----------1502-------------------------------
INT 15 - Amstrad PC1512 - READ DATA FROM NON-VOLATILE RAM
AH = 02h
AL = NVRAM location (00h to 3Fh)
Return: AH = return code
00h OK
01h address bad
02h checksum error
AL = NVRAM data value
SeeAlso: AH=01h"Amstrad"
----------1502-------------------------------
INT 15 - VMiX - MEMORY OBJECT MANAGER
AH = 02h
STACK: WORD object ID of requestor
DWORD pointer to name of requested method
WORD arg1
WORD arg2
WORD arg3
WORD arg4
WORD arg5
Return: DX:AX??? = pointer to memory block
----------1502-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE
AH = 02h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h successful
01h not semaphore owner
02h invalid semaphore number
Notes: if any tasks are waiting for the semaphore, the first task on the wait
queue will become the new owner and be reawakened
do not use within an interrupt handler
SeeAlso: AH=01h"MultiDOS",AH=10h"MultiDOS",AH=1Ch"MultiDOS"
----------1503-------------------------------
INT 15 - CASSETTE - WRITE DATA (PC and PCjr only)
AH = 03h
CX = number of bytes to write
ES:BX -> data buffer
Return: CF clear if successful
ES:BX -> byte following last byte written
CF set on error
AH = status (see AH=02h"CASSETTE")
CX = 0000h
SeeAlso: AH=00h"CASSETTE",AH=02h"CASSETTE"
----------1503-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE WRITE REGISTER
AH = 03h
AL = value (I,R,G,B bits)
SeeAlso: AH=04h"Amstrad"
----------1503-------------------------------
INT 15 - VMiX - PROMPTED CONSOLE INPUT
AH = 03h
STACK: DWORD pointer to ASCII prompt
WORD field outline character
WORD length of input field
DWORD address of pointer to input buffer
WORD number of characters input
Return: AX = length of input (input buffer is padded with blanks)
----------1503-------------------------------
INT 15 - MultiDOS Plus - SUSPEND TASK FOR INTERVAL
AH = 03h
DX = number of time slices to remain suspended
Return: after specified interval has elapsed
Note: when priority-based scheduling is in use, high-priority tasks should
use this function to yield the processor
SeeAlso: AH=00h"MultiDOS",AH=0Ah"MultiDOS"
----------1504-------------------------------
INT 15 - SYSTEM - BUILD ABIOS SYSTEM PARAMETER TABLE (PS)
AH = 04h
ES:DI -> results buffer length 20h for System Parameter Table
DS = segment containing ABIOS RAM extensions (zero if none)
Return: AH = 00h success: results at ES:DI
CF set on failure
SeeAlso: AH=05h"ABIOS",C1h
Format of ABIOS System Parameter Table:
Offset Size Description
00h DWORD FAR address of ABIOS Common Start Routine
04h DWORD FAR address of ABIOS Interrupt Routine
08h DWORD FAR address of ABIOS Time-out Routine
0Ch WORD number of bytes of stack required by this ABIOS implementation
0Eh 16 BYTEs reserved
1Eh WORD number of entries in initialization table
----------1504-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU COLOR PLANE READ REGISTER
AH = 04h
AL = value (RDSEL1 and RDSEL0)
SeeAlso: AH=03h"Amstrad",05h"Amstrad"
----------1504-------------------------------
INT 15 - VMiX - VPRINTF
AH = 04h
STACK: DWORD control string
DWORD array of arguments
----------1504-------------------------------
INT 15 - MultiDOS Plus - SEND MESSAGE TO ANOTHER TASK
AH = 04h
AL = mailbox number (00h-3Fh)
CX = message length in bytes
DS:SI -> message
Return: AH = status
00h successful
01h out of message memory
02h invalid mailbox number
Note: the message is copied into a system buffer; the caller may immediately
reuse its buffer
SeeAlso: AH=05h"MultiDOS"
----------1505-------------------------------
INT 15 - SYSTEM - BUILD ABIOS INITIALIZATION TABLE (PS)
AH = 05h
ES:DI -> results buffer length (18h * Number_of_Entries)
DS = segment containing ABIOS RAM extensions (zero if none)
Return: AH = 00h success: results at ES:DI
CF set on failure
SeeAlso: AH=04h"ABIOS",C1h
Format of one entry of ABIOS Initialization Table:
Offset Size Description
00h WORD device ID
02h WORD number of Logical IDs
04h WORD Device Block length (zero for ABIOS patch or extension)
06h DWORD -> init routine for Device Block and Function Transfer Table
0Ah WORD request block length
0Ch WORD Function Transfer Table length (zero for a patch)
0Eh WORD Data Pointers length (in Common Data Area)
10h BYTE secondary device ID (hardware level this ABIOS ver supports)
11h BYTE revision (device driver revision level this ABIOS supports)
12h 6 BYTEs reserved
----------1505-------------------------------
INT 15 - Amstrad PC1512 - WRITE VDU GRAPHICS BORDER REGISTER
AH = 05h
AL = value (I,R,G,B bits)
SeeAlso: AH=04h"Amstrad"
----------1505-------------------------------
INT 15 - VMiX - GET PROCESS ID OF CURRENT PROCESS
AH = 05h
Return: AX = process ID
SeeAlso: AH=06h"VMiX",AH=0Bh"VMiX"
----------1505-------------------------------
INT 15 - MultiDOS Plus - CHECK MAILBOX
AH = 05h
AL = mailbox number (00h-3Fh)
Return: AH = status
00h successful
DX = length of first message in queue, 0000h if no message
02h invalid mailbox number
SeeAlso: AH=04h"MultiDOS",AH=06h"MultiDOS"
----------1506-------------------------------
INT 15 - Amstrad PC1512 - GET ROS VERSION NUMBER
AH = 06h
Return: BX = version number
----------1506-------------------------------
INT 15 - VMiX - GET POINTER TO PROCESS CONTROL BLOCK
AH = 06h
STACK: WORD process ID
Return: DX:AX??? -> process control block
SeeAlso: AH=07h"VMiX",AH=08h"VMiX"
----------1506-------------------------------
INT 15 - MultiDOS Plus - READ MAILBOX
AH = 06h
AL = mailbox number (00h-3Fh)
CX = size of buffer in bytes
ES:DI -> buffer for message
Return: AH = status
00h successful
CX = number of bytes copied
DX = actual length of message
02h invalid mailbox number
Note: if the caller's buffer is not large enough, the message is truncated
and the remainder is lost
SeeAlso: AH=04h"MultiDOS",AH=05h"MultiDOS"
----------1507-------------------------------
INT 15 - VMiX - GET POINTER TO OBJECT CONTROL BLOCK
AH = 07h
STACK: WORD object type
Return: DX:AX??? -> object control block
SeeAlso: AH=06h"VMiX",AH=08h"VMiX"
----------1507-------------------------------
INT 15 - MultiDOS Plus - SPAWN INTERNAL TASK (CREATE NEW THREAD)
AH = 07h
BX:CX = entry point of new task
DX = stack size in paragraphs
Return: AH = status
00h successful
01h no free task control blocks
02h no free memory for task's stack
Note: execution returns immediately to calling task
SeeAlso: AH=08h"MultiDOS",AH=09h"MultiDOS",AH=13h"MultiDOS"
----------1508-------------------------------
INT 15 - VMiX - GET CHANNEL CONTROL BLOCK
AH = 08h
STACK: WORD channel ID
Return: DX:AX??? -> channel control block
SeeAlso: AH=06h"VMiX",AH=07h"VMiX"
----------1508-------------------------------
INT 15 - MultiDOS Plus - TERMINATE INTERNAL TASK (KILL THREAD)
AH = 08h
Return: calling task terminated, so execution never returns to caller
Notes: an internal task must be terminated with this function rather than a
DOS termination function
task's stack space is returned to parent task's memory pool
SeeAlso: AH=07h"MultiDOS"
----------1509-------------------------------
INT 15 - VMiX - GET ID OF QUEUED ELEMENT
AH = 09h
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD subqueue ID
Return: AX = ID
SeeAlso: AH=0Ah"VMiX"
----------1509-------------------------------
INT 15 - MultiDOS Plus - CHANGE TASK'S PRIORITY
AH = 09h
AL = new priority
Note: the priority has different meanings depending on whether priority-
based or round-robin scheduling is used
SeeAlso: AH=07h"MultiDOS"
----------150A-------------------------------
INT 15 - VMiX - GET ID OF NEXT QUEUED ELEMENT
AH = 0Ah
STACK: WORD queue ID (0 = process queue, 1 = object, 3 = type)
WORD ID of current element in queue chain
Return: AX = ID of next element
SeeAlso: AH=09h"VMiX",AH=0Fh"VMiX"
----------150A-------------------------------
INT 15 - MultiDOS Plus - CHANGE TIME SLICE INTERVAL
AH = 0Ah
AL = new interval
00h = 55.0 ms (default)
80h = 27.5 ms
40h = 13.75 ms
20h = 6.88 ms
10h = 3.44 ms
08h = 1.72 ms
SeeAlso: AH=03h"MultiDOS"
----------150B-------------------------------
INT 15 - VMiX - GET TOTAL NUMBER OF ACTIVE PROCESSES
AH = 0Bh
Return: AX = number of active processes
SeeAlso: AH=05h"VMiX",AH=0Eh"VMiX"
----------150B-------------------------------
INT 15 - MultiDOS Plus - FORCE DISPLAY OUTPUT TO PHYSICAL SCREEN MEMORY
AH = 0Bh
Notes: sets calling task's screen pointer to actual screen memory; the pointer
may be restored with AH=0Ch
caller's video mode must be same as foreground task's video mode
any text written while in the background will be saved to the
foreground task's virtual screen when it switches to the background
useful if a background task wants to display a message on the
foreground screen
SeeAlso: AH=0Ch"MultiDOS"
----------150C-------------------------------
INT 15 - VMiX - GET POINTER TO PROCESS TSS STACK
AH = 0Ch
STACK: WORD process ID
Return: DX:AX??? -> TSS stack store
----------150C-------------------------------
INT 15 - MultiDOS Plus - RESTORE OLD VIDEO DISPLAY MEMORY
AH = 0Ch
Note: restores task's screen pointer saved by AH=0Bh; must not be called
unless AH=0Bh has been called first
SeeAlso: AH=0Bh"MultiDOS"
----------150D-------------------------------
INT 15 - VMiX - START A CHILD PROCESS JOB SHELL
AH = 0Dh
STACK: DWORD ASCIZ string starting with requested I/O channel and
followed by standard VMiX shell command string
Return: AX = status
SeeAlso: AH=0Eh"VMIX"
----------150D-------------------------------
INT 15 - MultiDOS Plus - DISABLE MULTITASKING
AH = 0Dh
Note: calling task receives all time slices until AH=0Eh is called; this
allows time-critical events or nonreentrant code to be processed
SeeAlso: AH=0Eh"MultiDOS",AH=10h"MultiDOS",AX=101Bh,AH=20h"MultiDOS"
----------150E-------------------------------
INT 15 - VMiX - TERMINATE PROCESS
AH = 0Eh
STACK: WORD process ID
Return: AX = status
SeeAlso: AH=0Bh"VMiX",AH=0Dh"VMIX"
----------150E-------------------------------
INT 15 - MultiDOS Plus - ENABLE MULTITASKING
AH = 0Eh
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AH=20h"MultiDOS"
----------150F-------------------------------
INT 15 - SYSTEM - FORMAT UNIT PERIODIC INTERRUPT (PS ESDI drives only)
AH = 0Fh
AL = phase code
00h reserved
01h surface analysis
02h formatting
Return: CF clear if formatting should continue, set if it should terminate
Note: called during ESDI drive formatting after each cylinder is completed
SeeAlso: INT 13/AH=1Ah
----------150F-------------------------------
INT 15 - VMiX - GET KEY FIELD OF QUEUED ELEMENT
AH = 0Fh
STACK: WORD queue ID (0 = process queue, 1 = object q, 3 = type q)
WORD ID of element in queue chain
Return: AX = key
SeeAlso: AH=0Ah"VMiX"
----------150F-------------------------------
INT 15 - MultiDOS Plus - EXECUTE A MULTIDOS PLUS COMMAND
AH = 0Fh
DS:BX -> ASCIZ command
Return: after command has been processed
Notes: specified string is executed as if it had been typed at the MultiDOS
command prompt
the task is placed on a queue which MultiDOS examines periodically and
is suspended until MultiDOS has processed the command
all lowercase characters up to the first blank are converted to upper
case within the given buffer
----------1510-------------------------------
INT 15 - VMiX - EXECUTE FUNCTION IN PROTECTED MODE
AH = 10h
STACK: DWORD pointer to function
N WORDs function args
Return: ???
----------1510-------------------------------
INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE
AH = 10h
AL = semaphore number (00h-3Fh)
Return: AH = status
00h semaphore not in use
01h semaphore owned by another task
02h invalid semaphore number
03h semaphore owned by caller
SeeAlso: AH=02h"MultiDOS",AH=0Dh"MultiDOS",AH=1Dh"MultiDOS"
----------151000-----------------------------
INT 15 - TopView - "PAUSE" - GIVE UP CPU TIME
AX = 1000h
Return: after other processes run
Note: under DESQview, if the process issuing this call has hooked INT 08h,
the current time-slice is set to expire at the next clock tick rather
than immediately
SeeAlso: AH=00h"MultiDOS",INT 21/AH=EEh"DoubleDOS",INT 2F/AX=1680h
SeeAlso: INT 7F/AH=E8h
----------151001-----------------------------
INT 15 - TopView - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
AX = 1001h
BX = number of bytes to allocate
Return: ES:DI -> block of memory or 0000h:0000h (DV 2.26+)
Note: use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
common memory
SeeAlso: AX=1002h,AX=DE0Ch,AX=DE15h
----------151002-----------------------------
INT 15 - TopView - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
AX = 1002h
ES:DI -> previously allocated block
Return: block freed
SeeAlso: AX=1001h,AX=DE0Dh
----------151003-----------------------------
INT 15 - TopView - "PRINTC" - DISPLAY CHARACTER/ATTRIBUTE ON SCREEN
AX = 1003h
BH = attribute
BL = character
DX = segment of object handle for window
Note: BX=0 does not display anything, it only positions the hardware cursor
----------1510-------------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
AH = 10h
AL = 04h thru 12h
Return: pops up "Programming error" window in DV 2.x
----------151013-----------------------------
INT 15 - TopView - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER
AX = 1013h
ES:DI -> FAR service routine
Return: BX = bit mask indicating which bit was allocated
0000h if no more bits available
SeeAlso: AX=1014h,AX=1015h
Note: only a few TopView/DESQview API calls are allowed during a hardware
interrupt; if other calls need to be made, the interrupt handler
must schedule a 2nd-level interrupt with "SETBIT" (AX=1015h)
----------151014-----------------------------
INT 15 - TopView - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER
AX = 1014h
BX = bit mask from INT 15/AX=1013h
SeeAlso: AX=1013h,AX=1015h
----------151015-----------------------------
INT 15 - TopView - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS
AX = 1015h
BX = bit mask for interrupts to post
Return: indicated routines will be called: (DV 2.0x) at next task switch
(DV 2.2x) immediately
SeeAlso: AX=1013h,AX=1014h
Notes: this is one of the few TopView calls which are allowed from a hardware
interrupt handler
the handler will be called with ES containing the segment of the handle
of the next task to be executed; on return, ES must be the segment of
a task handle
----------151016-----------------------------
INT 15 - TopView - "ISOBJ" - VERIFY OBJECT HANDLE
AX = 1016h
ES:DI = possible object handle
Return: BX = FFFFh if ES:DI is a valid object handle
0000h if ES:DI is not
SeeAlso: AX=DE14h
----------151017-----------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
AX = 1017h
Return: pops up "Programming error" window in DV 2.x
----------151018-----------------------------
INT 15 - TopView - "LOCATE" - FIND WINDOW AT A GIVEN SCREEN LOCATION
AX = 1018h
BH = column
BL = row
ES = segment of object handle for window below which to search
0000h = start search with topmost window
Return: ES = segment of object handle for window which is visible at the
indicated position, or covered by indicated window
= 0000h no window
SeeAlso: AX=1023h,AX=1024h
----------151019-----------------------------
INT 15 - TopView - "SOUND" - MAKE TONE
AX = 1019h
BX = frequency in Hertz (0000h = silence)
CX = duration in clock ticks (18.2 ticks/sec)
Return: immediately, tone continues to completion
Notes: if another tone is already playing, the new tone does not start until
completion of the previous one. Up to 32 tones may be queued before
the process is blocked until a note completes.
in DV 2.00, the lowest tone allowed is 20 Hz
if CX = 0, the current note is cancelled; if BX = 0 as well, all queued
notes are also cancelled
SeeAlso: INT 16/AH=73h
----------15101A-----------------------------
INT 15 - TopView - "OSTACK" - SWITCH TO TASK'S INTERNAL STACK
AX = 101Ah
Return: stack switched
Notes: this call may not be nested; a second call must be preceded by a call
to "USTACK" (AX=1025h)
while TopView requires many API calls to be executed while on the
task's internal stack, DESQview allows those calls to be executed
regardless of the current stack
SeeAlso: AX=1025h
----------15101B-----------------------------
INT 15 - TopView - "BEGINC" - BEGIN CRITICAL REGION
AX = 101Bh
Return: task-switching temporarily disabled
Notes: will not task-switch until "ENDC" (AX = 101Ch) called unless task
voluntarily releases the CPU (upon regaining the CPU, task-switching
will again be disabled)
suspends the caller until DOS is free
SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AX=DE13h,AX=DE1Ch,INT 2F/AX=1681h
----------15101C-----------------------------
INT 15 - TopView - "ENDC" - END CRITICAL REGION
AX = 101Ch
Return: task-switching enabled
Note: this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=DE13h,AX=DE1Bh,INT 2F/AX=1682h
----------15101D-----------------------------
INT 15 - TopView - "STOP" - STOP TASK
AX = 101Dh
ES = segment of object handle for task to be stopped
(== handle of main window for that task)
Return: indicated task will not get any CPU time until restarted with AX=101Eh
Note: once a task has been stopped, additional "STOP"s are ignored
BUG: in DV 2.00, this function is ignored unless the indicated task is the
current task
SeeAlso: AX=101Eh,AX=102Bh,AH=12h"VMiX"
----------15101E-----------------------------
INT 15 - TopView - "START" - START TASK
AX = 101Eh
ES = segment of object handle for task to be started
(== handle of main window for that task)
Return: indicated task is started up again
Note: once a task has been started, additional "START"s are ignored
SeeAlso: AX=101Dh,AX=102Bh
----------15101F-----------------------------
INT 15 - TopView - "DISPEROR" - POP-UP ERROR WINDOW
AX = 101Fh
BX = bit fields
bits 0-12: number of characters to display
bits 13,14: which mouse button may be pressed to remove window
00 = either
01 = left
10 = right
11 = either
bit 15: beep if 1
DS:DI -> text of message
CH = width of error window (0 = default)
CL = height of error window (0 = default)
DX = segment of object handle
Return: BX = status: 1 = left button, 2 = right, 27 = ESC pressed
Note: window remains on-screen until ESC or indicated mouse button is pressed
----------151020-----------------------------
INT 15 - TopView - UNIMPLEMENTED IN DV 2.0x
AX = 1020h
Return: pops up "Programming error" window in DV 2.0x
----------151021-----------------------------
INT 15 - TopView - "PGMINT" - INTERRUPT ANOTHER TASK
AX = 1021h
BX = segment of object handle for task to interrupt (not self)
DX:CX -> FAR routine to jump to next time task is run
Return: nothing
Notes: the FAR routine is entered with the current ES, DS, SI, DI, and BP
values, using the task's internal stack (see AX=101Ah); only SS:SP
needs to be preserved
multiple PGMINTs to a single task are processed last-in first-out
if the other task is in a DOS or DV API call, the interruption will
occur on return from that call
----------151022-----------------------------
INT 15 - TopView - "GETVER" - GET VERSION
AX = 1022h
BX = 0
Return: BX nonzero, TopView or compatible loaded
(BL = major version, BH = minor version)
Notes: TaskView returns BX = 0001h, DESQview 2.0 returns BX = 0A01h
----------151023-----------------------------
INT 15 - TopView - "POSWIN" - POSITION WINDOW
AX = 1023h
BX = segment of object handle for parent window within which to
position the window (0 = full screen)
ES = segment of object handle for window to be positioned
DL = bit flags
bits 0,1: horizontal position
00 = current
01 = center
10 = left
11 = right
bits 2,3: vertical position
00 = current
01 = center
10 = top
11 = bottom
bit 4: don't redraw screen if set
bits 5-7 not used
CH = number of columns to offset from position specified by DL
CL = number of rows to offset from position specified by DL
Return: nothing
----------151024-----------------------------
INT 15 - TopView - "GETBUF" - GET VIRTUAL SCREEN INFO
AX = 1024h
BX = segment of object handle for window
(0 = use default)
Return: ES:DI -> virtual screen
CX = size of virtual screen in bytes
DL = 00h text screen
01h graphics screen
SeeAlso: INT 10/AH=FEh,INT 21/AH=2Bh/CX=4445h
----------151025-----------------------------
INT 15 - TopView - "USTACK" - SWITCH BACK TO USER'S STACK
AX = 1025h
Return: stack switched back
Notes: call only after having switched to internal stack with AX=101Ah
while TopView requires many API calls to be executed while on the
task's private stack, DESQview allows those calls to be executed
regardless of the current stack
SeeAlso: AX=101Ah
----------1510-------------------------------
INT 15 - DESQview (TopView???) - UNIMPLEMENTED IN DV 2.x
AH = 10h
AL = 26h thru 2Ah
Return: pops up "Programming error" window in DV 2.x
----------15102B-----------------------------
INT 15 - DESQview 2.0 (TopView???) - "POSTTASK" - AWAKEN TASK
AX = 102Bh
BX = segment of object handle for task
Return: nothing
Note: forces a task which is waiting on its objectq to continue by placing
the handle for the task on the objectq
SeeAlso: AX=101Dh,AX=101Eh
----------15102C-----------------------------
INT 15 - DESQview 2.0 (TopView???) - START NEW APPLICATION IN NEW PROCESS
AX = 102Ch
ES:DI -> contents of .PIF/.DVP file (see below)
BX = size of .PIF/.DVP info
Return: BX = segment of object handle for new task
0000h on error
Format of .PIF/.DVP file:
Offset Size Description
00h WORD reserved (0)
02h 30 BYTEs blank-padded program title
20h WORD maximum memory to allocate to partition in K
22h WORD minimum memory required in K
24h 64 BYTEs ASCIZ program pathname
64h BYTE default drive letter ('A',...)
65h 64 BYTEs ASCIZ default directory name
A5h 64 BYTEs ASCIZ program parameters
E5h BYTE initial screen mode (0-7) (see also offset 189h)
E6h BYTE number of text pages used
E7h BYTE number of first interrupt to save
E8h BYTE number of last interrupt to save
E9h BYTE rows in virtual screen buffer
EAh BYTE columns in virtual screen buffer
EBh BYTE initial window position, row
ECh BYTE initial window position, column
EDh WORD system memory in K
EFh 64 BYTEs ASCIZ shared program name
12Fh 64 BYTEs ASCIZ shared program data file
16Fh BYTE flags1
bit 7: writes text directly to screen
bit 6: runs in foreground only
bit 5: uses math coprocessor
bit 4: accesses system keyboard buffer directly
bits 3-1: reserved (0)
bit 0: swappable
170h BYTE flags2
bit 6: uses command-line parameters in field at A5h
bit 5: swaps interrupt vectors
---information unique to .DVP files---
171h 2 BYTEs keys to use on open menu
173h WORD size of script buffer in bytes
175h WORD automatically give up CPU after this many tests for keyboard
input in one clock tick (default 0 = never)
177h BYTE nonzero = "uses own colors"
178h BYTE nonzero if application swappable
179h 3 BYTEs reserved (0)
17Ch BYTE nonzero to automatically close on exit
17Dh BYTE nonzero if copy-protect floppy is required
---information unique to DESQview 2.0+---
17Eh BYTE .DVP version number
00h DESQview 1.2+
01h DESQview 2.0+
02h DESQview 2.2+
17Fh BYTE reserved (0)
180h BYTE initial number of rows in physical window
181h BYTE initial number of columns in physical window
182h WORD maximum expanded memory to allow, in K
184h BYTE flags3
bit 7: automatically assign window position
bit 5: maximum memory value has been specified
bit 4: disallow "Close" command
bit 3: foreground-only when doing graphics
bit 2: don't virtualize
bit 1: ??? set by DV 2.31 when "Runs in Background" = "D"
185h BYTE keyboard conflict level (0-4 for DV<2.26, 00h-0Fh for DV2.26+)
186h BYTE number of graphics pages used
187h WORD extra system memory size
189h BYTE initial screen mode (FFh = default) (overrides offset E5h)
---information unique to DESQview 2.2+---
18Ah BYTE serial port usage
FFh uses all serial ports
00h no serial ports
01h only COM1
02h only COM2
18Bh BYTE flags4
bit 7: automatically close application on exit if .COM or .EXE
specified
bit 6: swappable if not using serial ports
bit 5: start program with window hidden (v2.26+)
bit 4: start program in background (v2.26+)
bit 3: virtualize text
bit 2: virtualize graphics
bit 1: share CPU when foreground
bit 0: share EGA when foreground and zoomed
18Ch BYTE protection level for 386 machines
18Dh 19 BYTEs reserved (0)
----------15102D-----------------------------
INT 15 - DESQview 2.0 - KEYBOARD MOUSE CONTROL
AX = 102Dh
BL = subfunction
00h determine whether using keyboard mouse
Return: BL = 00h using real mouse
01h using keyboard mouse
01h turn keyboard mouse on
02h turn keyboard mouse off
----------1511-------------------------------
INT 15 - TopView commands
AH = 11h
AL = various (except 17h)
Note: in DESQview 2.x, these function calls are identical to AH=DEh, so
see those below
SeeAlso: AH=DEh
----------1511-------------------------------
INT 15 - VMiX - EXECUTE SHELL SYSTEM COMMANDS
AH = 11h
STACK: DWORD pointer to ASCIZ string containing a VMiX shell
request (max len = 127)
Return: AX = status
----------1511-------------------------------
INT 15 - MultiDOS Plus - TURN OFF AltZ TOGGLE
AH = 11h
Note: disables the Alt-Z MultiDOS command/program-selection hotkey
SeeAlso: AH=12h"MultiDOS"
----------151117BX0000-----------------------
INT 15 - DESQview 2.2+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
AX = 1117h
BX = 0000h get current mapping context without setting
nonzero set new mapping context
Return: BX = mapping context in effect before call
interrupts enabled
Notes: this function differs from AX = DE17h for DESQview v2.20 through 2.25
mapping contexts determine conventional-memory addressability; setting
a mapping context ensures that the associated program and data areas
are in memory for access. Usable by drivers, TSRs and shared
programs.
caller need not be running under DESQview, but must ensure that the
stack in use will not be mapped out by the call
SeeAlso: AX=DE17h,INT 2F/AX=1685h
----------1511DE-----------------------------
INT 15 - DESQview - XDV.COM - INSTALLATION CHECK
AX = 11DEh
Return: CF clear if installed
AX = segment at which XDV is located
----------1512-------------------------------
INT 15 - VMiX - PUT PROCESS TO SLEEP
AH = 12h
STACK: WORD process ID
Return: AX = status
SeeAlso: AH=03h"MultiDOS",AX=101Dh,AH=13h"VMiX"
----------1512-------------------------------
INT 15 - MultiDOS Plus - TURN ON AltZ TOGGLE
AH = 12h
Note: enables the Alt-Z MultiDOS command/program-selection hotkey
SeeAlso: AH=11h"MultiDOS"
----------1512--BH00-------------------------
INT 15 - TopView - SEND MESSAGE - "HANDLE" - RETURN OBJECT HANDLE
AH = 12h
BH = 00h
BL = which handle to return
00h handle in DWORD on top of stack
01h current task's window handle
02h given task's mailbox handle (task's handle on stack)
03h current task's mailbox handle
04h given task's keyboard handle (task's handle on stack)
05h current task's keyboard object handle
06h given task's OBJECTQ handle (task's handle on stack)
07h current task's OBJECTQ handle
08h \
thru > return 0000:0000 under DV < 2.26
10h /
0Ch (2.26+) task owning object with handle in DWORD on top of stack
0Dh (2.26+) task handle of owner (parent) of current task
Return: DWORD on top of stack is object handle
Note: BL=0Ch,0Dh returns 00000000h if the object is not open (keyboard,
mailbox, panel, pointer, and timer objects) or is an orphan (task,
window)
----------1512--BH01-------------------------
INT 15 - TopView - SEND MESSAGE - "NEW" - CREATE NEW OBJECT
AH = 12h
BH = 01h
BL = object type to create
00h (DV 2.0x only) handle is DWORD on top of stack
01h (DV 2.0x only) use task's window handle
02h (DV 2.0x only) given task's mailbox (task's handle on stack)
03h (DV 2.0x only) current task's mailbox
04h (DV 2.0x only) given task's keyboard (task's handle on stack)
05h (DV 2.0x only) current task's keyboard object
08h WINDOW class
09h MAILBOX class
0Ah KEYBOARD class
0Bh TIMER object (counts down 32-bit time in 10ms increments)
0Fh POINTER object
10h PANEL object
STACK: (if window object or WINDOW class)
DWORD address to jump to (no new task if high word == 0)
DWORD (reserved) 0 = non-task window, FFFFh = task window
DWORD bytes for task's private stack (FFFFh == default of 0100h)
DWORD bytes system memory for input buffer for READ/READN
(0 == none, -1 == default--same as logical window size)
DWORD window size, columns
DWORD window size, rows
DWORD length of window title
DWORD address of window title
Return: DWORD on top of stack is new object handle
Notes: if a new task is created, it is started with
AX = BX = SI = DI = BP = 0
DX:CX = handle of parent task
DS = ES = SS = segment of private stack (and new task's handle)
new windows are orphans, inherit the colors/hidden status of the
creating task's window, and are placed in the upper left hand corner
of the screen but not automatically redrawn
new keyboards are closed, and have all object bits cleared except for
the hardware cursor bit
SeeAlso: AH=12h/BH=02h
----------1512--BH02-------------------------
INT 15 - TopView - SEND MESSAGE - "FREE" - FREE AN OBJECT
AH = 12h
BH = 02h
BL = object
00h handle in DWORD on top of stack
window: close window and free
timer: free timer
panel: free panel object
pointer: free pointer
01h task's window handle - kills task, never returns
02h given task's mailbox (task's handle on top of stack)
03h current task's mailbox
04h given task's keyboard (task's handle on top of stack)
05h current task's keyboard object
Notes: when a window is freed, its keyboard and pointer objects are freed;
task windows also free any mailbox, objectq, and panel objects held
by the task and any child tasks
if the keyboard being freed is the default keyboard for a task, this
call is equivalent to CLOSE
panel and pointer objects are automatically closed if open
SeeAlso: AH=12h/BH=01h,AH=12h/BH=0Dh
----------1512--BH03-------------------------
INT 15 - TopView - SEND MESSAGE - "ADDR" - GET HANDLE OF MESSAGE SENDER
AH = 12h
BH = 03h
BL = object
00h mailbox handle in DWORD on top of stack
02h sender of last msg read from mailbox (task's handle on stack)
03h sender of last msg read from current task's mailbox
Return: DWORD on stack is task handle of message sender
SeeAlso: AH=12h/BH=00h
----------1512--BH03-------------------------
INT 15 - DESQview 2.26+ - "CONNECT" - CONNECT TWO WINDOWS
AH = 12h
BH = 03h
BL = window to be connected
00h handle of window to be attached in DWORD on top of stack
01h attach current task's main window
STACK: DWORD handle of window to attach to or 00000000h to detach
Return: ???
Notes: when two windows are connected, both will move if the user moves either
multiple windows may be attached to a single window, but each window
may only be attached to one window at a time
----------1512--BX0300-----------------------
INT 15 - TopView - SEND MESSAGE - "DIR" - GET PANEL FILE DIRECTORY
AH = 12h
BX = 0300h
STACK: DWORD handle of panel object
Return: STACK: DWORD length of directory (always multiple of 14 bytes)
DWORD address of directory
Note: a null string is returned if the object is not open
Format of panel file:
Offset Size Description
00h 2 BYTEs C0h C3h
02h BYTE number of panels in file
03h for each panel in file:
8 BYTEs blank-padded panel name
DWORD panel offset in file
WORD panel length
data for panels (each consists of one or more window/query/manager
streams)
first byte of each panel must be 1Bh, fifth byte must be E5h
----------1512--BH04-------------------------
INT 15 - TopView - SEND MESSAGE - "READ" - READ NEXT LOGICAL LINE OF WINDOW
AH = 12h
BH = 04h
BL = window to read from
00h handle is DWORD on top of stack
01h use calling task's default window
0Ch (DV 2.26+) default window of task owning handle on top of stack
0Dh (DV 2.26+) default window of parent task of current task
Return: STACK: DWORD number of bytes read
DWORD address of buffer
Notes: reading starts at the current logical cursor position; the cursor is
updated to point at the character following the last one read
any translucent blanks (FFh) which are visible on screen are changed
to the character which is seen through them
the string produced by the read is placed in an input buffer which may
be reused by the next READ or READN of a window
window stream opcodes D8h and D9h determine whether the read returns
characters or attributes
SeeAlso: AH=12h/BH=05h"WINDOW",AH=12h/BH=12h
----------1512--BH04-------------------------
INT 15 - TopView - SEND MESSAGE - "READ" - GET NEXT RECORD FROM OBJECT
AH = 12h
BH = 04h
BL = object
00h handle is DWORD on top of stack
mailbox: wait for and get next message
keyboard: wait for and get pointer to next input buffer
pointer: wait for and get next message
02h get next message from mailbox (task's handle on top of stack)
03h get next message from current task's mailbox
04h get the next input from keyboard (handle on top of stack)
05h get the next input from task's default keyboard
06h wait for input from any object in OBJECTQ (handle on stack)
07h wait for input from any object in task's default OBJECTQ
Return: STACK: (if objectq) DWORD handle of object with input
(otherwise) DWORD number of bytes
DWORD address
Notes: for a keyboard in keystroke mode, the input buffer is a single byte
containing the character code as returned by the BIOS; the BIOS scan
code is available via the STATUS call if the character is zero
for a keyboard in field mode, the input buffer format is determined
by the field table header for the window the keyboard is attached to
keyboard input buffers and mailbox message buffers may be invalidated
by the next READ, ERASE, CLOSE, or FREE message to the same object
SeeAlso: AH=12h/BH=05h"OBJECT"
Format of pointer message:
Offset Size Description
00h WORD row
02h WORD column
04h BYTE status
bit 6: set when press/release mode active and button released
bits 7-2: number of clicks-1 if multiple-click mode active
bits 1,0: button pressed (00=none,01=button1,10=button2)
05h BYTE field number or zero (APILEVEL >= 2.00 only)
----------1512--BX0400-----------------------
INT 15 - TopView - SEND MESSAGE - "READ" - WAIT FOR TIMER TO EXPIRE
AH = 12h
BX = 0400h
STACK: DWORD timer's handle
Return: after timer expires
STACK: DWORD time in 1/100 sec after midnight when timer expired
----------1512--BX0400-----------------------
INT 15 - TopView - SEND MESSAGE - "APPLY" - WRITE PANEL TO WINDOW
AH = 12h
BX = 0400h
STACK: DWORD handle of panel object
DWORD window's handle (or 0 for current task's window)
DWORD length of panel name
DWORD pointer to panel name
Return: STACK: DWORD handle of keyboard or 0
DWORD handle of window which was used
Notes: status of APPLY may be checked with STATUS message
panel MUST have the following format
first byte must be 1Bh (i.e. must start with a stream)
first opcode in stream must be E5h
single byte arg of opcode is interpreted thus:
bits 7,6 11 means create new window
10 means create new field table for existing window
01 means use existing window and field table
bit 5 if set, panel contains a field table
(creates a new keyboard and puts it in field mode)
bit 4 if set, panel contains input fields
bit 3 if set, panel contains select fields but no input fields
if the panel contains input or select fields, a keyboard handle is
returned; either the window's current open keyboard or a
newly-created keyboard object. The caller should read that keyboard
to obtain input from the panel.
----------1512--BH05------------------------
INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE TO OBJECT
AH = 12h
BH = 05h
BL = object
00h handle is DWORD on top of stack
timer: start timer to end at a specified time
keyboard: add input buffer to queue
pointer: move pointer icon to specified position
02h send message by value/status=0 to mbox (task's handle on stack)
03h send message by value/status=0 to current task's mailbox
04h add input buffer to KEYBOARD queue (handle on top of stack)
05h add input buffer to task's default KEYBOARD queue
06h add an object to OBJECTQ (handle on top of stack)
07h add an object to task's default OBJECTQ
STACK: (if mailbox) DWORD length
DWORD address
(if keyboard) DWORD status (scan code in keystroke mode)
DWORD length (should be 1 in keystroke mode)
DWORD address
(if objectq) DWORD handle of object to add
(if timer) DWORD 1/100ths seconds since midnight (actually
only accurate to 1/18 sec)
(if pointer) DWORD column relative to origin of window
DWORD row relative to origin of window
Notes: under DV 2.2+, failed mailbox writes may return CF set (see AX=DE15h)
the data and status written to a keyboard object must match the format
returned by the keyboard object in the current mode
the pointer position is scaled according to the current scaling factors
SeeAlso: AH=12h/BH=04h
----------1512--BH05-------------------------
INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE STRING TO WINDOW
AH = 12h
BH = 05h
BL = window to write to
00h DWORD on top of stack is window handle
01h write string to task's default window
0Ch (DV 2.26+) default window of task owning handle on top of stack
0Dh (DV 2.26+) default window of parent of current task
STACK: DWORD object handle if handle passed on stack
DWORD total length of string (high word == 0)
DWORD address of string to display
Return: indicated actions performed
a. non-control characters are displayed (opcodes DEh and DFh control
whether the attributes are left or changed to the current attrib)
b. CR/LF/BS/Tab cause the usual cursor movement
c. ESC starts a data structure with additional commands if following
byte is less than 20h; otherwise, it is written to the window
STACK: DWORD handle of new window if window stream opcode E6h
else nothing
Data Structure:
MAGIC DB 1Bh
MODE DB ? ; 00h, 01h, 10h, 14h-1Fh legal
LENGTH DW ? ; length of remainder in bytes
var-length fields follow, each an OPCODE followed by
zero or more args
MODE 00h (set or display values) "WINDOW STREAM"
Opcodes:args
00h display 20h blanks with the default attribute
01h-1Fh display OPCODE blanks with the default attribute
20h display char with default attribute 20h times
BYTE char to repeat
21h-3Fh display char with default attribute OPCODE-20h times
BYTE char to repeat
40h display 20h blanks with specified attribute
BYTE attribute of blanks
41h-5Fh display OPCODE-40h blanks with specified attribute
BYTE attribute of blanks
60h display next 20h characters
20h BYTES characters to display
61h-7Fh display next OPCODE-60h characters
N BYTES characters to display
80h-87h display N blanks with default attribute
BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
[000h means 800h]
88h-8Fh display N copies of the character
BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
[000h means 800h]
BYTE character to repeat
90h-97h display N blanks with specified attribute
BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
[000h means 800h]
BYTE attribute
98h-9FH display string at logical cursor pos
BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
[000h means 800h]
N BYTES string to display
A0h set logical cursor row
BYTE row number (0 is top)
A1h set logical cursor column
BYTE column number (0 is leftmost)
A2h set top edge of scrolling region
BYTE row
A3h set left edge of scrolling region
BYTE column
A4h set row of physical window position
BYTE line
A5h set column of physical window position
BYTE column
A6h set height of physical window
BYTE #rows
A7h set width of physical window
BYTE #columns
A8h set viewport row
BYTE row
A9h set viewport column
BYTE column
AAh set virtual screen height [contents of window unpredictable after]
BYTE rows
ABh set virtual screen width [contents of window unpredictable after]
BYTE columns
ACh-AEh unused
AFh set compatible/preferred video modes
BYTE compatibility/preference mask
bit 7 compatible with monochrome
bit 6 compatible with color text, EGA/VGA graphics
bit 5 compatible with medium-resolution CGA graphics
bit 4 compatible with high-resolution CGA graphics
bit 3 prefer monochrome
bit 2 prefer color text, EGA/VGA graphics
bit 1 prefer medium-resolution CGA graphics
bit 0 prefer high-resolution CGA graphics
B0h move logical cursor down
BYTE #rows (signed, negative values move up)
[if #rows=0 and hardware cursor owner, update hw crsr]
B1h move logical cursor right
BYTE #cols (signed, negative values move left)
[if #cols=0 and hardware cursor owner, update hw crsr]
B2h shift top edge of scrolling region
BYTE #rows (signed)
B3h shift left edge of scrolling region
BYTE #cols (signed)
B4h shift physical window down
BYTE #lines (signed)
B5h shift physical window right
BYTE #columns (signed)
B6h expand physical window vertically
BYTE #lines (signed)
B7h expand physical window horizontally
BYTE #columns (signed)
B8h adjust viewport row
BYTE #rows (signed)
B9h adjust viewport column
BYTE #columns (signed)
BAh adjust virtual screen height [contents of window unpredict after]
BYTE #rows to increase (signed)
BBh adjust virtual screen width [contents of window unpredictbl after]
BYTE #cols to increase (signed)
BCh-BFh reserved (currently unused)
C0h set logical cursor position
BYTE row number (0 is top border)
BYTE column number (0 is left border)
C1h set top left corner of scrolling region
BYTE row
BYTE column
C2h set physical window pos
BYTE upper left row (no top border if 0)
BYTE upper left column (no left border if 0)
C3h set current window size
BYTE #rows
BYTE #cols
C4h set upper left corner of viewport (portion of virtual screen
displayed in window)
BYTE row
BYTE column
C5h set size of virtual screen [contents unpredictable afterwards]
BYTE #rows
BYTE #cols
C6h unused
C7h unused
C8h set logical cursor relative to current position
BYTE number of rows to move down (signed)
BYTE number of columns to move right (signed)
[if #rows=#cols=0 and hardware cursor owner, update hw cursr]
C9h shift top left corner of scrolling region
BYTE #rows (signed)
BYTE #cols (signed)
CAh set window pos relative to current position
BYTE number of rows to shift down (signed)
BYTE number of columns to shift right (signed)
CBh set window size relative to current size
BYTE number of rows to expand (signed)
BYTE number of cols to expand (signed)
CCh shift viewport relative to current position
BYTE rows to shift (signed)
BYTE cols to shift (signed)
CDh resize virtual screen
BYTE #rows to expand (signed)
BYTE #cols to expand (signed)
CEh scroll text when using E8h-EBh/F8h-FBh opcodes (default)
CFh scroll attributes when using E8h-EBh/F8h-FBh opcodes
D0h allow window frame to extend beyond screen
D1h always display a complete frame, even if window extends beyond
edge of screen
D2h allow DV to change logical colors on video mode switch (default)
D3h application changes logical attributes
D4h window is visible [must redraw to actually make visible]
D5h window is hidden [must redraw to actually remove]
D6h window has frame (default)
D7h window unframed [must redraw to actually remove frame]
D8h READ/READN will read characters from window (default)
D9h READ/READN will read attributes from window
DAh use logical attributes, which may be remapped
attributes
1 normal text
2 highlighted normal text
3 help text
4 highlighted help text
5 error message
6 highlighted error message
7 emphasized text
8 marked text
9-16 are reverse video versions of 1-8
DBh use physical attributes for characters
DCh enable special actions for control characters (default)
DDh disable special control char handling, all chars displayable by
BIOS TTY call
DEh write both character and attribute (default)
DFh write character only, leave attribute untouched
E0h repeat following commands through E1h opcode
BYTE number of times to repeat (00h means 256 times)
E1h end of commands to repeat, start repeating them
E2h set current output color
BYTE color
E3h clear virtual screen from scroll origin to end using current color
E4h redraw window
E5h select menu style
BYTE style (normally 18h)
bits 5,4 = 01 use two-letter menu entries for remainder of
this stream
E5h (panel file only)
BYTE modifier
bits 7,6 = 11 panel stream creates new window
= 10 panel defines new field table for existing window
= 01 panel stream uses existing window & field table
bit 5 = 1 stream contains a field table (create kyboard object)
bit 4 = 1 stream defines input fields (create keyboard object)
bit 3 = 1 stream defines select fields but not input fields
bit 2 = 1 stream defines exclusive input window (DV 2.2)
bit 1 reserved
bit 0 reserved
E6h create new window and perform rest of manipulations in new window
BYTE number of rows
BYTE number of columns
Return: DWORD object handle of new window returned on stack at end
E7h no operation
E8h scroll area up (top left corner defined by opcode C1h)
BYTE height
BYTE width
E9h scroll area down (top left corner defined by opcode C1h)
BYTE height
BYTE width
EAh scroll area left (top left corner defined by opcode C1h)
BYTE height
BYTE width
EBh scroll area right (top left corner defined by opcode C1h)
BYTE height
BYTE width
ECh set logical attributes for window contents
BYTE video modes command applies to
bit 7 monochrome
bit 6 color text, EGA/VGA graphics
bit 5 medium-resolution CGA graphics
bit 4 high-resolution CGA graphics
BYTE which attributes to set
bit 7 if set, copy single following byte to indicated attribs
bits 4-6 # of first attribute to change - 1
bits 0-3 # of consecutive attributes to change
N BYTEs new attributes
EDh set logical attributes for window frame
BYTE video modes command applies to (see opcode ECh)
BYTE which attributes to set
bit 7 if set, copy single following byte to indicated attrs
bits 4-6 # of first attribute to change - 1
bits 0-3 # of consecutive attributes to change
N BYTEs new attributes
attributes
1 = top left corner
2 = top right corner
3 = bottom left corner
4 = bottom right corner
5 = top edge
6 = bottom edge
7 = left edge
8 = right edge
EEh set characters for window frame
BYTE video modes command applies to (see opcode ECh)
BYTE which characters to set
bit 7 if set, copy single following byte to indicated chars
bits 4-6 # of first char to change - 1
bits 0-3 # of consecutive chars to change
N BYTEs new chars (same relative position as attributes above)
EFh set window name
BYTE length of name (should be in range 0 to logical screen width)
N BYTEs name
F0h clear input field to blanks
BYTE field number
F1h fill input field with character
BYTE field number
BYTE char
F2h set color of input field
BYTE field number (1-N)
BYTE attribute
F3h set initial contents of input field
BYTE field number (1-N)
N BYTEs enough chars to exactly fill field as defined by op FFh
F4h position cursor to start of specific input field
BYTE field number (1-N)
F5h change field table entry
BYTE field number
7-8 BYTEs field table entry (see opcode FFh below)
F6h set field type
BYTE field number
BYTE type
00h inactive
40h output field
80h input field
C0h deselected field
C2h selected field
F7h "broadcast write" write data to fields with program output bit
set in field table entry, in field number order
N BYTEs (total length of all program output fields)
F8h scroll field up a line
BYTE field number
F9h scroll field down a line
BYTE field number
FAh scroll field left
BYTE field number
FBh scroll field right
BYTE field number
FCh set field table header
BYTE number of fields (must be <= existing number of fields)
BYTE screen behavior bits
bit 7 reserved
bit 6 set if menu items may be selected via keyboard
bit 5 set if left mouse button may terminate entry
bit 4 set if right mouse button may terminate entry
bit 3 if set, select fields return contents or blanks rather
than 'Y' or 'N'
bit 2 if set, modified bits reset on return to application
bits 0,1 = 00 no data returned on read of keyboard
01 data returned as array of chars containing
all fields packed together, with no field
numbers
10 data returned as numbered variable-length
records for all fields
11 data returned as numbered variable-length
records for the fields which were modified
BYTE current input field (updated by DESQview)
BYTE current select field (updated by DESQview)
BYTE attribute for select fields when they are pointed at
BYTE attribute for select fields which have been selected
FDh reset modified bit for all fields
FEh reset selected and modified bits for all fields
FFh set up input fields
6 BYTEs table header (see opcode FCh above)
the field table entries, one for each field
BYTE start row \
BYTE start column \ if menu selection and start is to
BYTE end row / right or below end, select from kbd only
BYTE end column /
BYTE field type
bits 7,6 = 00 inactive (non-entry) field
01 echos keystrokes input to make menu selection
10 fill-in field
11 select field
bit 5 field can be filled by broadcast write (F7h opcode)
bit 4 reserved
bit 3 reserved
bit 2 reserved
bit 1 set if field selected
bit 0 set if field modified
BYTE modifier
if type is fill-in, then bit flags to determine behavior
bit 7 if set, automatically enter CR when field full
bit 6 move to next field when current field is full
bit 5 if set, enter text from right end (for numbers)
bit 4 if set, force input to uppercase
bit 3 if set, clear old contents on first keystroke
bit 2 if set, input returned when cursor moves out
of modified field (API level 2.02+)
bit 1 reserved
bit 0 reserved
if select field, first key to press to activate
00h if have to point-&-click or is an extended-ASCII
keystroke (only if two-key menus enabled)
BYTE (select field only) normal color of field
BYTE second key for select field. This byte is present iff
two-letter menu entries selected with opcode E5h, and
in that case is present regardless of field type
Note: DESQview uses and updates the actual copy of the information
which is contained in the stream. Thus this info must remain
intact until after the data entry is complete.
MODE 01h "QUERY STREAM" (valid only for those opcodes listed here)
A0h return logical cursor row in next byte
A1h return logical cursor column in next byte
A2h return top row of scrolling region in next byte
A3h return left column of scrolling region in next byte
A4h return row of physical window origin in next byte
A5h return column of physical window origin in next byte
A6h return height of physcial window in next byte
A7h return width of physical window in next byte
A8h return row of viewport origin in next byte
A9h return column of viewport origin in next byte
AAh return height of virtual screen in next byte
ABh return width of virtual screen in next byte
AFh return current video mode in next byte
C0h return current logical cursor position in next two bytes
C1h return top left corner of scrolling region in next two bytes
C2h return current window position in next two bytes
C3h return current window size in next two bytes
C4h return current viewport origin in next two bytes
C5h return current virtual screen size in next two bytes
D0h \ overwritten with D0h if frames may fall off screen edge
D1h / D1h if frames always displayed entirely
D2h \ overwritten with D2h if DESQview controls color palette
D3h / D3h if application changes color palette
D4h \ overwritten with D4h if window visible
D5h / D5h if window hidden
D6h \ overwritten with D6h if window has frame
D7h / D7h if window unframed
D8h \ overwritten with D8h if reading characters from window
D9h / D9h if reading attributes from window
DAh \ overwritten with DAh if using logical attributes
DBh / DBh if using physical attributes
DCh \ overwritten with DCh if TTY control char interpretation on
DDh / DDh if TTY control char interpretation off
DEh \ overwritten with DEh if writing both characters and attributes
DFh / DFh if leaving attributes untouched
E2h return current color in next byte
ECh get logical attributes for window contents
BYTE execute call if currently in specified video mode
bit 7 monochrome
bit 6 color text, EGA/VGA graphics
bit 5 medium-resolution CGA graphics
bit 4 high-resolution CGA graphics
BYTE which attributes to get
bit 7 unused???
bits 4-6 first attribute to get - 1
bits 0-3 # consecutive attributes
N BYTEs buffer to hold attributes
EDh get logical attributes for window frame
BYTE execute call if currently in video mode (see opcode ECh)
BYTE which attributes to get
bit 7 unused???
bits 4-6 first attribute to get - 1
bits 0-3 # consecutive attributes
N BYTEs buffer to hold attributes
EEh get characters for window frame
BYTE execute call if currently in video mode (see opcode ECh)
BYTE which attributes to get
bit 7 unused???
bits 4-6 first char to get - 1
bits 0-3 # consecutive chars
N BYTEs buffer to hold chars
EFh return first N characters of current window name
BYTE max length of returned name
N BYTEs buffer to hold window name
F3h return contents of specified field
BYTE field number
N BYTEs buffer to hold field contents (size exactly equal to field
size)
F5h get field table entry
BYTE field number
7-8 BYTEs buffer to hold field table entry
Notes: DV < 2.26 always returns 7 bytes
DV 2.26+ w/ APILEVEL < 2.26 returns 8 bytes iff field
table is using 8-byte entries and eighth byte after
F5h is E7h (NOP); otherwise, 7 bytes are returned
DV 2.26+ w/ APILEVEL > 2.26 returns 7 or 8 bytes
depending on the field table entry size
F6h get type of a field
BYTE field number
BYTE type
FCh get field table header
6 BYTEs buffer to store header
MODE 10h "MANAGER STREAM" (valid only for opcodes listed here)
00h allow window to be moved horizontally
01h allow window to be moved vertically
02h allow window to change width
03h allow window to change height
04h allow window to be scrolled horizontally
05h allow window to be scrolled vertically
06h allow "Close Window" menu selection for application
07h allow "Hide Window" menu selection for application
08h allow application to be suspended ("Rearrange/Freeze")
0Eh allow "Scissors" menu
10h allow DESQview main menu to be popped up
11h allow "Switch Windows" menu
12h allow "Open Window" menu
13h allow "Quit" menu selection
20h-33h opposite of 00h-13h, disallow specified action
40h notify if horizontal position of window changes
41h notify if vertical position of window changes
42h notify if width of window changes
43h notify if height of window changes
44h notify if window scrolled horizontally
45h notify if window scrolled vertically
46h notify if window is closed--program has to clean up and exit itself
47h notify if window is hidden
48h notify if "?" on main menu selected
49h notify if pointer message sent to window
4Ah notify if window is placed in foreground
4Bh notify if window is placed in background
4Ch notify if video mode changes
4Dh notify if "Scissors" menu "Cut" option selected
4Eh notify if "Scissors" menu "Copy" option selected
4Fh notify if "Scissors" menu "Paste" option selected
50h notify if DESQview main menu about to pop up
51h notify if DESQview main menu popped down
60h-71h opposite of 40h-51h: don't notify on specified event
84h attach window to parent task's window (both move together)
85h detach window from parent task's window (may move independently)
86h disable background operation for application
87h enable running in background
88h set minimum size of physical window
BYTE rows
BYTE columns
89h set maximum size of physical window
BYTE rows
BYTE cols
8Ah set primary asynchronous notification routine
DWORD address of routine, 0000h:0000h means none (see also below)
8Bh set async notification parameter
DWORD 32-bit value passed to 8Ah async routine in DS:SI
ACh (DV2.2+) perform regular select field attribute processing
ADh (DV2.2+) protect attributes in selected field from being lost
AEh make window default notify window for owning app (API level 2.00+)
AFh set selected field marker character
BYTE character to display at left edge of selected fields
BCh set standard field processing mode
BDh set alternate field processing mode (enables cursor pad for menus)
BEh disables changing reverse logical attributes with ECh opcode
BFh enables changing reverse logical attributes with ECh opcode
C0h make current window topmost in system
C1h force current process into foreground
C2h make current window topmost in process
C3h position mouse pointer relative to origin of current field
BYTE rows below upper left corner of field
BYTE columns to right of upper left corner of field
C4h position mouse pointer relative to origin of given field
BYTE field number
BYTE rows below upper left corner of field
BYTE columns to right of upper left corner of field
C5h orphan current window (also hides it)
Note: must be last in stream; all subsequent commands ignored
C6h show all windows for this process
C7h hide all windows for this process
C8h suspend process and hide all its windows
C9h force current process into background
CAh make current window bottom-most in process
CBh cancel current window manager operation, remove DV menu, give
control to topmost application
CCh orphan window and give it to the system for use as paste data
CEh reorder windows
DWORD pointer to null-terminated list of words
each word is segment of object handle for a window
FFh no operation
MODES 14h to 1Fh "USER STREAMS"
normally NOPs, but may be defined by SETESC message to invoke FAR
routines, one for each mode number
on entry to handler,
DS:SI -> first byte of actual stream (not header)
CX = #bytes in stream
ES:DI = window's handle
Asynchronous notification routine defined by manager stream 8Ah called with:
ES:DI = handle of window
DS:SI is 32-bit value set by 8Bh manager stream opcode
mailbox contains message indicating event
Opcode
40h horizontal movement
DWORD object handle of window
BYTE new row
BYTE new col
41h vertical movement
DWORD object handle of window
BYTE new row
BYTE new col
42h horizontal size change
DWORD object handle of window
BYTE new rows
BYTE new cols
43h vertical size change
DWORD object handle of window
BYTE new rows
BYTE new cols
44h scrolled horizontally
DWORD object handle of window
BYTE mouse row within window
BYTE mouse column within window
BYTE field mouse is on, 0 if none
BYTE amount moved: >0 right, <0 left, 0 done
45h scrolled vertically
DWORD object hande of window
BYTE mouse row within window
BYTE mouse column within window
BYTE field mouse is on, 0 if none
BYTE amount moved: >0 down, <0 up, 0 done
46h window close request
DWORD object handle of window
BYTE mouse pointer row
BYTE mouse pointer column
BYTE field mouse is on, 0 if none
47h application's windows hidden
48h Help for Program selected
DWORD object handle of window
BYTE mouse pointer row
BYTE mouse pointer column
BYTE field mouse is on, 0 if none
49h pointer message sent to window
DWORD pointer handle which received message
4Ah switched to window from another ("raise")
4Bh switched away from the window ("lower")
4Ch video mode changed
BYTE new BIOS video mode
4Dh Scissors/cUt selected
DWORD object handle of window
BYTE row of upper left corner
BYTE column of upper left corner
BYTE field number ul corner is in, 0=none
DWORD handle of orphaned window created with
copy of data from specified region
BYTE height of region
BYTE width of region
4Eh Scissors/Copy selected
DWORD object handle of window
BYTE row of upper left corner
BYTE column of upper left corner
BYTE field number ul corner is in, 0=none
DWORD handle of orphaned window created with
copy of data from specified region
BYTE height of region
BYTE width of region
4Fh Scissors/Paste selected
DWORD object handle of window
BYTE row of upper left corner
BYTE column of upper left corner
BYTE field number ul corner is in, 0=none
DWORD handle of orphaned window with data
BYTE height of region
BYTE width of region
Note: orphaned data window should be adopted or freed
when done
50h main menu about to pop up
51h main menu popped down
Return: all registers unchanged
----------1512--BH06-------------------------
INT 15 - DESQview 2.2+ - SEND MESSAGE - "SETPRI" - SET PRIORITY WITHIN OBJECTQ
AH = 12h
BH = 06h
BL = object
00h object handle in DWORD on top of stack
mailbox, keyboard, pointer, or timer
04h given task's keyboard (task's handle on top of stack)
05h current task's default keyboard
STACK: DWORD new priority of object in task's OBJECTQ
Notes: initially all objects have the same default value. Should only make
relative adjustments to this default value.
when changing priorities, all objects already on the objectq are
reordered
SeeAlso: AH=12h/BH=07h
----------1512--BH07-------------------------
INT 15 - DESQview 2.2+ - SEND MESSAGE - "GETPRI" - GET PRIORITY WITHIN OBJECTQ
AH = 12h
BH = 07h
BL = object
00h object handle in DWORD on top of stack
mailbox, keyboard, pointer, or timer
04h given task's keyboard (task's handle on top of stack)
05h current task's default keyboard
Return: STACK: DWORD object priority
Note: initially all objects have the same default value. Should only make
relative adjustments to this default value.
SeeAlso: AH=12h/BH=06h
----------1512--BH08-------------------------
INT 15 - TopView - SEND MESSAGE - "SIZEOF" - GET OBJECT SIZE
AH = 12h
BH = 08h
BL = object
00h handle in DWORD on top of stack
window: total character positions in window
timer: elapsed time since timer started
pointer: number of messages queued to pointer object
panel: number of panels in panel file
keyboard: number of input buffers queued
01h total chars in current task's default window
02h number of messages in task's mailbox (task's handle on stack)
03h number of messages in current task's mailbox
04h number of input buffers queued in task's kbd (handle on stack)
05h number of input buffers queued for current task's default kbd
06h number of objects queued in OBJECTQ (task's handle on stack)
07h number of objects queued in current task's OBJECTQ
0Ch (DV 2.26+) total chars in window owning handle on top of stack
0Dh (DV 2.26+) total chars in parent task's window
Return: DWORD on top of stack is result
Note: for panel objects, a count of zero is returned if no panel file is open
for the object
SeeAlso: AH=12h/BH=04h,AH=12h/BH=09h
----------1512--BH09-------------------------
INT 15 - TopView - SEND MESSAGE - "LEN" - GET OBJECT LENGTH
AH = 12h
BH = 09h
BL = object
00h handle in DWORD on top of stack
window: get chars/line
timer: get 1/100 seconds remaining before timer expires
01h get number of chars/line in current task's default window
0Ch (DV 2.26+) get chars/line in window owning handle on top of stk
0Dh (DV 2.26+) get chars/line in parent task's window
Return: DWORD on top of stack is length
SeeAlso: AH=12h/BH=08h
----------1512--BH0A-------------------------
INT 15 - TopView - SEND MESSAGE - "ADDTO" - WRITE CHARS AND ATTRIBS TO WINDOW
AH = 12h
BH = 0Ah
BL = window to write to
00h window handle is DWORD on top of stack
01h current task's default window
0Ch (DV 2.26+) default window of task owning handle on top of stack
0Dh (DV 2.26+) default window of parent of current task
STACK: DWORD count of attributes
DWORD address of attribute string
DWORD count of characters
DWORD address of character string
Notes: if one string is longer than the other, the shorter one will be reused
until the longer one is exhausted
the cursor is left just after the last character written
SeeAlso: AH=12h/BH=0Bh"WINDOW"
----------1512--BH0A-------------------------
INT 15 - TopView - SEND MESSAGE - "ADDTO" - SEND MAILBOX MESSAGE/STAT BY VALUE
AH = 12h
BH = 0Ah
BL = mailbox to write to
00h handle is DWORD on top of stack
02h default mailbox of task whose handle is on top of stack
03h current task's default mailbox
STACK: DWORD status (low byte)
DWORD length of message
DWORD address of message
Notes: the message is copied into either system or common memory
insufficient memory normally causes the process to be aborted; under
DESQview 2.2+, failed writes may return CF set instead (see AX=DE15h)
SeeAlso: AH=12h/BH=0Bh"MAILBOX"
----------1512--BH0A-------------------------
INT 15 - TopView - SEND MESSAGE - "ADDTO" - SET OBJECT BITS
AH = 12h
BH = 0Ah
BL = object
00h handle is DWORD on top of stack
timer: start timer for specified interval
pointer: set control flags
keyboard: set control flags
04h set control flags on KEYBOARD object (handle on top of stack)
05h set control flags on task's default KEYBOARD object
STACK: (if timer) DWORD duration in 1/100 seconds
(otherwise) DWORD bits to set
SeeAlso: AH=12h/BH=0Bh"OBJECT"
For keyboard objects, the bits have the following significance:
bit 15 reserved, can't be set
bit 14 unused
bit 13 reserved, can't be set
bit 12-6 unused
bit 5 (DV 2.2+) exclusive input
bit 4 filter all keys (used with handler established by SETESC)
if 0, only keys that would normally be displayed are filtered
bit 3 program continues executing while input in progress
bit 2 insert mode active for field mode
bit 1 hardware cursor displayed when task is hardware cursor owner
must be set if keyboard in field mode and field table includes
input fields
bit 0 keyboard is in field mode rather than keystroke mode
For pointer objects, the bits have the following significance:
bit 15 reserved, can't be set
bit 14-8 unused
bit 7 mouse pointer is hidden while in window
bit 6 get messages even if window not topmost
bit 5 get messages even if window not foreground
bit 4 multiple clicks separated by less than 1/3 second are counted
and returned in a single message
bit 3 pointer position is relative to screen origin, not window origin
bit 2 send message on button release as well as button press
bit 1 (DV 2.23+) send message with row=FFFFh and col=FFFFh whenever
pointer leaves the window
bit 0 send message only on button activity, not movement
DV-specific, and INT 15h/AX=DE0Fh must have been called first
----------1512--BH0B-------------------------
INT 15 - TopView - SEND MESSAGE - "SUBFROM" - WRITE ATTRIBUTES TO WINDOW
AH = 12h
BH = 0Bh
BL = window to write attributes to
00h handle is DWORD on top of stack
01h current task's default window
0Ch (DV 2.26+) default window of task owning handle on top of stack
0Dh (DV 2.26+) default window of parent of current task
STACK: DWORD number of attributes to write
DWORD address of attributes
Note: the attributes are written starting at the current cursor position; the
cursor is left just after the last position written
SeeAlso: AH=12h/BH=0Ah"WINDOW"
----------1512--BH0B-------------------------
INT 15 - TopView - SEND MESSAGE - "SUBFROM" - SEND MAILBOX MESSAGE/STAT BY REF
AH = 12h
BH = 0Bh
BL = mailbox to write to
00h handle is DWORD on top of stack
02h default mailbox of task whose handle is on top of stack
03h current task's default mailbox
STACK: DWORD status (low byte)
DWORD length of message
DWORD address of message
Notes: only a pointer to the message is stored, but the write may still fail
due to insufficient memory
under DV 2.2+, failed mailbox writes may return CF set (see AX=DE15h)
SeeAlso: AH=12h/BH=0Ah"MAILBOX"
----------1512--BH0B-------------------------
INT 15 - TopView - SEND MESSAGE - "SUBFROM" - REMOVE OBJECT FROM OBJECTQ
AH = 12h
BH = 0Bh
BL = OBJECTQ from which to remove all copies of a particular object
06h OBJECTQ of task whose handle is on top of stack
07h task's default OBJECTQ
STACK: DWORD handle of object to remove
Note: should be sent whenever an object is erased or closed
----------1512--BH0B-------------------------
INT 15 - TopView - SEND MESSAGE - "SUBFROM" - RESET OBJECT BITS
AH = 12h
BH = 0Bh
BL = object
00h handle is DWORD on top of stack
pointer: reset control flags
keyboard: reset control flags
04h clear control flags on KEYBOARD object (handle on top of stack)
05h clear control flags on task's default KEYBOARD object
STACK: DWORD which bits to clear (see AH=12h/BH=0Ah"OBJECT")
SeeAlso: AH=12h/BH=0Ah"OBJECT"
----------1512--BH0C-------------------------
INT 15 - TopView - SEND MESSAGE - "OPEN" - OPEN OBJECT
AH = 12h
BH = 0Ch
BL = object
00h handle is DWORD on top of stack
window: fill with given character from scroll origin to end
keyboard: attach to a window
timer: open
pointer: start taking input for window
panel: associate with a panel file
01h fill task's default window with given char from scrl org to end
02h open given task's mailbox for input (task's handle on stack)
03h open current task's mailbox
04h attach a KEYBOARD to a window (handle on top of stack)
05h attach task's default KEYBOARD to a window
06h open a task's OBJECTQ (task's handle on top of stack)
07h open current task's OBJECTQ
0Ch (DV 2.26+) fill def window of task owning handle on top of stck
0Dh (DV 2.26+) fill default window of parent of current task
STACK: (if window) DWORD character to fill with
(if keyboard) DWORD handle of window to attach to
(if pointer) DWORD handle of window to attach to
(if panel) DWORD length of filename or resident panel
DWORD address of filename or resident panel
(otherwise) nothing
Notes: if first byte of panel file name is 1Bh, then the "name" IS a panel
if first two bytes of panel file "name" are C0hC3h, then the "name" IS
the panel file
result code of open may be retrieved with STATUS message
logical cursor is left at scroll origin after filling window
the task opening a mailbox becomes its owner, and the only task allowed
to read the mailbox
messages are only sent to a pointer object when the mouse is positioned
in the window to which the pointer has been attached
there is no need to explicitly open a timer object, as ADDTO and WRITE
messages automatically open the timer
SeeAlso: AH=12h/BH=0Dh,AH=12h/BH=14h"LOCK"
----------1512--BH0D-------------------------
INT 15 - TopView - SEND MESSAGE - "CLOSE" - CLOSE OBJECT
AH = 12h
BH = 0Dh
BL = object
00h handle is DWORD on top of stack
timer: close
keyboard: detach from window and discard queued input
pointer: stop taking input
panel: close
mailbox: close, unlock, and discard any pending messages
02h close given task's mailbox (task's handle on top of stack)
03h close task's default mailbox
04h close KEYBOARD object (handle on top of stack)
05h close task's default KEYBOARD
06h close givent task's OBJECTQ (task's handle on top of stack)
07h close current task's OBJECTQ
Notes: when an OBJECTQ is closed, each object in the OBJECTQ is sent an
ERASE message (AH=12h/BH=0Eh)
when a panel object is closed, the panel file and any panels currently
in use are freed; window and keyboard objects created by APPLY are
not affected, but field mode input ceases
open but idle timer objects consume a small amount of CPU time
SeeAlso: AH=12h/BH=0Ch,AH=12h/BH=0Eh,AH=12h/BH=14h"LOCK"
----------1512--BH0E-------------------------
INT 15 - TopView - SEND MESSAGE - "ERASE" - ERASE OBJECT
AH = 12h
BH = 0Eh
BL = object
00h handle is DWORD on top of stack
window: clear from scroll origin to end of window
keyboard: discard input
timer: cancel current interval
pointer: discard all pending messages
mailbox: discard all pending messages
01h clear task's default window from scroll origin to end
02h discard all queued messages in mailbox (handle on top of stack)
03h discard all queued messages in current task's default mailbox
04h discard all input queued to KEYBOARD (handle on top of stack)
05h discard all input queued to task's default KEYBOARD
06h remove all objects from OBJECTQ (task's handle on top of stack)
07h remove all objects from current task's OBJECTQ
0Ch (DV 2.26+) clear window of task owning handle on top of stack
0Dh (DV 2.26+) clear default window of parent of current task
Note: when an OBJECTQ is erased, each object in the OBJECTQ is also erased
SeeAlso: AH=12h/BH=02h
----------1512--BH0F-------------------------
INT 15 - TopView - SEND MESSAGE - "STATUS" - GET OBJECT STATUS
AH = 12h
BH = 0Fh
BL = object
00h handle is DWORD on top of stack
timer: is it running?
pointer: return status of last message
panel: verify success of last OPEN or APPLY
02h return status of last msg READ from mailbox (handle on stack)
03h return status of last msg READ from task's default mailbox
04h get status of last msg from task's KEYBOARD (task handle on stk)
05h get status of last msg from task's default KEYBOARD
06h return whether OBJECTQ is open or not (handle on top of stack)
07h return whether task's default OBJECTQ is open or not
Return: DWORD on top of stack is status
Notes: if object is a panel object, the status indicates the error code:
00h successful
14h panel name not in panel directory
15h not enough memory to apply panel
16h invalid panel format
17h panel file already open
81h-92h DOS error codes+80h \ codes > 80h indicate
95h not enough memory to open panel file > that the panel was
98h null panel file name / not opened
if object is a timer, the status is:
00000000h open but not running
40000000h open and running
80000000h closed
if object is an OBJECTQ, the status is:
00000000h open
80000000h closed
if object is a keyboard in keystroke mode, the status is the extended
character code (scan code) of teh last keystroke
if object is a keyboard in field mode, the status indicates the reason
for the last return from the field manager
00h Enter key pressed
01h Button 1 or keystroke selection
02h Button 2
03h validation
04h auto Enter on field
1Bh Escape pressed
46h ^Break pressed
other: extended code for key terminating input
the status of mailbox messages sent by the window manager is always 80h
the status of a pointer message is the same as the status field in the
message
SeeAlso: AH=12h/BH=04h"READ"
----------1512--BH10-------------------------
INT 15 - TopView - SEND MESSAGE - "EOF" - GET OBJECT EOF STATUS
AH = 12h
BH = 10h
BL = object
00h handle is DWORD on top of stack
window: return TRUE if logical cursor past end of window
mailbox: ???
01h returns TRUE if logical cursor past end of task's def window
02h return ??? for task's mailbox (task's handle on top of stack)
03h return ??? for current task's mailbox
0Ch (DV 2.26+) check log crsr of window owning handle on top of stk
0Dh (DV 2.26+) check log cursor of window of parent task
Return: DWORD on top of stack is status
----------1512--BH11-------------------------
INT 15 - TopView - SEND MESSAGE - "AT" - POSITION OBJECT CURSOR
AH = 12h
BH = 11h
BL = window for which to move cursor
00h window's handle is DWORD on top of stack
01h task's default window
0Ch (DV 2.26+) default window of task owning handle on top of stack
0Dh (DV 2.26+) default window of parent of current task
STACK: DWORD column
DWORD row
----------1512--BH11-------------------------
INT 15 - TopView - SEND MESSAGE - "SETNAME" - ASSIGN NAME TO MAILBOX
AH = 12h
BH = 11h
BL = mailbox to name
00h DWORD on top of stack is mailbox handle
02h use given task's mailbox (task's handle on top of stack)
03h use current task's default mailbox
STACK: DWORD length of name
DWORD address of name
SeeAlso: AX=DE0Eh
----------1512--BX1100-----------------------
INT 15 - TopView - SEND MESSAGE - "SETSCALE" - SET POINTER SCALE FACTOR
AH = 12h
BX = 1100h
STACK: DWORD object handle for pointer object
DWORD number of colums to scale pointer position to
DWORD number of rows to scale pointer position to
SeeAlso: AH=12h/BX=1200h
----------1512--BH12-------------------------
INT 15 - TopView - SEND MESSAGE - "READN" - GET NEXT N OBJECT BYTES
AH = 12h
BH = 12h
BL = window to read from
00h handle is DWORD on top of stack
01h read next N chars or attributes on task's default window
0Ch (DV 2.26+) read window of task owning handle on top of stack
0Dh (DV 2.26+) read default window of parent of current task
STACK: DWORD count
Return: STACK: DWORD width of screen line
DWORD address
DWORD count actually read
Notes: reading starts at the current logical cursor position; the cursor is
updated to point at the character following the last one read
any translucent blanks (FFh) which are visible on screen are changed
to the character which is seen through them
the string produced by the read is placed in an input buffer which may
be reused by the next READ or READN of a window
window stream opcodes D8h and D9h determine whether the read returns
characters or attributes
SeeAlso: AH=12h/BH=04h"WINDOW",AH=12h/BH=05h"WINDOW"
----------1512--BX1200-----------------------
INT 15 - TopView - SEND MESSAGE - "GETSCALE" - GET POINTER SCALE FACTOR
AH = 12h
BX = 1200h
STACK: DWORD object handle for pointer
Return: STACK: DWORD pointer pos scaled as if window were this many colums wide
DWORD pointer pos scaled as if window were this many rows high
SeeAlso: AH=12h/BX=1100h
----------1512--BH13-------------------------
INT 15 - TopView - SEND MESSAGE - "REDRAW" - REDRAW WINDOW
AH = 12h
BH = 13h
BL = window object
00h DWORD on top of stack is handle for window to redraw
01h redraw task's default window
0Ch (DV 2.26+) redraw window of task owning handle on top of stack
0Dh (DV 2.26+) redraw default window of parent of current task
SeeAlso: AH=12h/BH=0Eh
----------1512--BX1300-----------------------
INT 15 - TopView - SEND MESSAGE - "SETICON" - SPECIFY POINTER ICON
AH = 12h
BX = 1300h
STACK: DWORD object handle for pointer
DWORD character to use for pointer
----------1512--BH14-------------------------
INT 15 - TopView - SEND MESSAGE - "SETESC" - SET ESCAPE ROUTINE ADDRESS
AH = 12h
BH = 14h
BL = message modifier
00h handle is DWORD on top of stack
01h define user stream
04h intercept keystrokes from KEYBOARD to a window (handle on stack)
05h intercept keystrokes from task's default KEYBOARD to a window
STACK: (if window) DWORD user stream number (14h-1Fh)
DWORD address of FAR user stream handler
(if keyboard) DWORD address of FAR filter function
The keyboard filter function is called when the keyboard is in field mode. On
entry,
AL = character
AH = 00h or extended ASCII code if AL = 00h
BL = field number
CH = cursor column
CL = cursor row
DL = field type modifier (sixth item in field table entry)
DH = seventh item in field table entry
ES:SI = window's handle
DS:DI -> field table entry for field containing the cursor
The filter function should return
AH = 00h use keystroke
01h ignore keystroke
FFh beep and ignore keystroke
Note: the filter function is not allowed to make INT 15, DOS, or BIOS calls
----------1512--BH14-------------------------
INT 15 - TopView - SEND MESSAGE - "LOCK" - REQUEST EXCLUSIVE ACCESS TO RESOURCE
AH = 12h
BH = 14h
BL = object
00h mailbox handle is DWORD on top of stack
02h use given task's mailbox (task's handle on top of stack)
03h use current task's default mailbox
Note: release exclusive access by sending CLOSE message to mailbox
access may be requested multiple times, and requires multiple CLOSEs
SeeAlso: AH=12h/BH=0Dh
----------1512--BH15-------------------------
INT 15 - DESQview 2.2+ - SEND MESSAGE - "SETFLAGS" - SET OBJECT FLAGS
AH = 12h
BH = 15h
BL = object
00h DWORD on top of stack
mailbox, keyboard, or pointer only
02h mailbox for task whose handle is on top of stack
03h mailbox for current task
04h keyboard for task whose handle is on top of stack
05h keyboard for current task
STACK: DWORD flags
if mailbox:
bit 0: all mail messages in common memory
bit 1: allow write even if closed
bit 2: don't erase messages when mailbox closed
if keyboard:
bit 5: exclusive input when keyboard in use for input
Return: nothing
Notes: only available if the API level has been set to at least 2.20
equivalent to performing SUBFROM and ADDTO calls on the object
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=16h
----------1512--BH16-------------------------
INT 15 - DESQview 2.2+ - SEND MESSAGE - "GETFLAGS" - GET OBJECT FLAGS
AH = 12h
BH = 16h
BL = object
00h DWORD on top of stack
mailbox, keyboard, or pointer only
02h mailbox for task whose handle is on top of stack
03h mailbox for current task
04h keyboard for task whose handle is on top of stack
05h keyboard for current task
Return: STACK: DWORD current control flags
Note: only available if the API level has been set to at least 2.20
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=15h
----------1513-------------------------------
INT 15 - VMiX - WAKE PROCESS
AH = 13h
STACK: WORD process ID
Return: AX = status
SeeAlso: AH=12h"VMiX"
----------1513-------------------------------
INT 15 - MultiDOS Plus - GET TASK CONTROL BLOCK
AH = 13h
Return: BX:AX -> task control block (see below)
SeeAlso: AH=15h"MultiDOS"
Format of MultiDOS Plus v4.0 task control block:
Offset Size Description
00h DWORD pointer to next TCB
04h 8 BYTEs ASCIZ task name
0Ch 2 BYTEs ???
0Eh WORD task PSP segment
10h WORD abort/suspend flags
12h WORD current screen segment (see AH=0Bh,AH=0Ch)
14h WORD priority level (0000h-FFFEh)
16h WORD time slice counter
18h 2 BYTEs ???
1Ah WORD suspend timer value
1Ch WORD stack segment
1Eh WORD stack pointer
20h WORD display type
22h WORD display memory
24h 2 BYTEs ???
26h WORD termination count
28h WORD equipment flag for BIO10 driver
2Ah BYTE background CRT mode
2Bh WORD screen width in columns
2Dh WORD screen size in bytes
2Fh WORD segment of physical screen memory
31h 16 BYTEs eight cursor positions
41h WORD current cursor shape
43h BYTE active display page
44h WORD CRT controller I/O port base
46h 2 BYTEs ???
48h WORD foreground task flag
4Ah 6 BYTEs ???
50h WORD saved video segment (see AH=0Bh,AH=0Ch)
52h DWORD old INT 22
56h DWORD old INT 23
5Ah DWORD old INT 24
5Eh WORD top of memory for task
60h 4 BYTEs ???
64h WORD DTA segment (see INT 21/AH=1Ah)
66h WORD DTA offset
68h 4 BYTEs ???
6Ch BYTE current ANSI.SYS attribute
6Dh BYTE current ANSI.SYS column
6Eh BYTE current ANSI.SYS row
6Fh BYTE current ANSI.SYS display state
70h BYTE maximum ANSI.SYS columns
71h BYTE current ANSI.SYS page
72h WORD saved ANSI.SYS cursor position
74h BYTE ANSI.SYS parameter buffer index
75h BYTE current ANSI.SYS screen mode
76h BYTE ANSI.SYS wrap flag
77h 6 BYTEs ANSI.SYS parameter buffer
7Dh BYTE ANSI.SYS keyboard DSR state
7Eh 7 BYTEs ANSI.SYS keyboard DSR buffer
85h 3 BYTEs ???
88h 16 BYTEs request header for DOS driver calls
98h 14 BYTEs ???
A6h WORD segment of EMS map if EMS task
A8h WORD flag: task makes EMS calls
AAh WORD EMS handle for task
ACh WORD keyboard shift state
AEh 12 BYTEs ???
BAh WORD TCB of parent if child task
BCh WORD termination code
BEh WORD COM port number
C0h 4 BYTEs ???
C4h WORD current IRQ number
C6h 2 BYTEs ???
C8h WORD miscellaneous flag word
CAh 2 BYTEs ???
CCh DWORD old INT 10
D0h WORD EMS alternate map set number
D2h 414 BYTEs DOS current disk and directory context (optional)
----------1514-------------------------------
INT 15 - VMiX - CLEAR WINDOW
AH = 14h
STACK: WORD top left corner of window
WORD bottom right corner of window
Return: AX = status
SeeAlso: AH=15h"VMiX"
----------1514-------------------------------
INT 15 - MultiDOS Plus - CHECK IF MultiDOS FOREGROUND OR BACKGROUND
AH = 14h
Return: AX = current state
0000h MultiDOS Plus command prompt is background task
0001h command prompt is foreground task
SeeAlso: AH=0Bh"MultiDOS"
----------1515-------------------------------
INT 15 - VMiX - SET BANNER WINDOW MESSAGE
AH = 15h
STACK: DWORD pointer to ASCIZ banner message
Return: AX = status
SeeAlso: AH=14h"VMiX"
----------1515-------------------------------
INT 15 - MultiDOS Plus - GET SYSTEM BLOCK
AH = 15h
Return: BX:AX -> system block (see below)
SeeAlso: AH=13h"MultiDOS"
Format of MultiDOS Plus 4.0 system block:
Offset Size Description
00h WORD segment of system control block
02h WORD redirection flag set by /NOREDIRECT
04h WORD no-INT 10 flag set by /NO10
06h DWORD old INT 10
0Ah DWORD new INT 10
0Eh DWORD pointer to WORD with current TCB offset (see AH=13h)
12h DWORD pointer to WORD with idle task TCB offset
16h DWORD pointer to WORD with foreground TCB offset
1Ah DWORD pointer to WORD with MultiDOS TCB offset
1Eh WORD Task Control Block size
20h WORD number of TCBs
22h WORD flag: EMS present
24h WORD EMS page frame base segment
26h WORD 16K pages in EMS page frame
28h WORD base segment for conventional memory tasks
2Ah WORD conventional memory size in paragraphs
2Ch DWORD pointer to list of queue pointers
----------1516-------------------------------
INT 15 - VMiX - SET ROOT WINDOW SIZE AND HOME CURSOR
AH = 16h
STACK: DWORD pointer to I/O Request Packet
WORD top left corner of window
WORD bottom right corner of window
Return: AX = status
SeeAlso: AH=17h"VMiX"
----------1516-------------------------------
INT 15 - MultiDOS Plus - INITIALIZATION
AH = 16h
Note: used internally during initialization; any other calls will cause
unpredicatable results
----------1517-------------------------------
INT 15 - VMiX - GET CONSOLE WINDOW COLORS
AH = 17h
Return: AH = foreground color
AL = background color
SeeAlso: AH=16h"VMiX",AH=18h"VMiX"
----------1517-------------------------------
INT 15 - MultiDOS Plus - MAP IRQ
AH = 17h
AL = IRQ to map (01h-0Fh)
BX = offset of task control block (see AH=13h) to associate with IRQ
Return: AX = status
0000h successful
other invalid IRQ
Note: the EMS map of the specified TCB is associated with the given interrupt
SeeAlso: AH=18h"MultiDOS",AH=19h"MultiDOS"
----------1518-------------------------------
INT 15 - VMiX - SET CONSOLE COLORS
AH = 18h
STACK: WORD new background/foreground colors
Return: AX = color
SeeAlso: AH=17h"VMiX"
----------1518-------------------------------
INT 15 - MultiDOS Plus - UNMAP IRQ
AH = 18h
AL = IRQ to unmap (01h-0Fh)
Return: AX = status
0000h successful
0001h invalid IRQ
Note: results are unpredictable if the IRQ has not been mapped
SeeAlso: AH=17h"MultiDOS",AH=19h"MultiDOS"
----------1519-------------------------------
INT 15 - VMiX v2+ - ???
AH = 19h
STACK: WORD ???
Return: ???
----------1519-------------------------------
INT 15 - MultiDOS Plus - UNMAP ALL IRQs
AH = 19h
Return: AX destroyed
Note: for MultiDOS internal use only
SeeAlso: AH=17h"MultiDOS",AH=18h"MultiDOS"
----------151A-------------------------------
INT 15 - VMiX v2+ - ???
AH = 1Ah
STACK: 3 WORDs ???
Return: ???
----------151A-------------------------------
INT 15 - MultiDOS Plus - MAP SEMAPHORE NAME TO NUMBER
AH = 1Ah
DS:SI -> 8-byte name
Return: AL = status
00h successful
AH = semaphore number (20h-3Fh)
04h out of string space
Notes: all eight bytes of the name are significant
if the name does not already exist, it is added to the name table and
associated with a free semaphore number
names cannot be destroyed
SeeAlso: AH=1Bh"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
----------151B-------------------------------
INT 15 - VMiX v2+ - ???
AH = 1Bh
STACK: 5 WORDs ???
Return: ???
----------151B-------------------------------
INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE BY NAME
AH = 1Bh
DS:SI -> 8-byte name
Return: AH = status
00h successful
02h invalid semaphore number
03h caller already owns semaphore
04h out of string space
Notes: (see notes for AH=01h"MultiDOS")
equivalent to AH=1Ah followed by AH=01h
SeeAlso: AH=01h"MultiDOS",AH=1Ah"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
----------151C-------------------------------
INT 15 - VMiX v2+ - ???
AH = 1Ch
STACK: 5 WORDs ???
Return: ???
----------151C-------------------------------
INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE BY NAME
AH = 1Ch
DS:SI -> 8-byte name
Return: AH = status
00h successful
01h not semaphore owner
02h invalid semaphore number
04h out of string space
Notes: (see notes for AH=02h"MultiDOS")
equivalent to AH=1Ah followed by AH=02h
SeeAlso: AH=02h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Dh"MultiDOS"
----------151D-------------------------------
INT 15 - VMiX v2+ - ???
AH = 1Dh
???
Return: ???
----------151D-------------------------------
INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE BY NAME
AH = 1Dh
DS:SI -> 8-byte name
Return; AH = status
00h semaphore not in use
01h semaphore owned by another task
02h invalid semaphore number
03h caller owns semaphore
04h out of string space
Notes: (see notes for AH=10h"MultiDOS")
equivalent to AH=1Ah followed by AH=10h
SeeAlso: AH=10h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Ch"MultiDOS"
----------151E-------------------------------
INT 15 - VMiX v2+ - ???
AH = 1Eh
STACK: WORD ???
Return: ???
----------151E00-----------------------------
INT 15 - MultiDOS Plus - CLEAR EVENT COUNTER
AX = 1E00h
DX = event/trigger number (00h-3Fh)
Return: AH = status
00h successful
SeeAlso: AX=1E01h,AX=1E02h
----------151E01-----------------------------
INT 15 - MultiDOS Plus - TRIGGER EVENT
AX = 1E01h
DX = event/trigger number (00h-3Fh)
Return: AH = status
00h successful
01h invalid event/trigger number
Notes: schedules any task waiting for event; if no task is waiting, the event
counter is incremented (and will roll over if it was 65535)
may be invoked by interrupt handler
SeeAlso: AX=1E00h,AX=1E02h
----------151E02-----------------------------
INT 15 - MultiDOS Plus - WAIT FOR EVENT
AX = 1E02h
DX = event/trigger number (00h-3Fh)
Return: AH = status
00h successful
01h invalid event/trigger number
Note: if the event counter is zero, the task is suspended until the event is
triggered with AX=1E01h; else, the counter is decremented and the
call returns immediately
SeeAlso: AX=1E00h,AX=1E01h
----------151F-------------------------------
INT 15 - MultiDOS Plus 4.01 - GET MEMORY PARAMETERS
AH = 1Fh
Return: BX = first segment of conventional memory
DX = first segment of EMS swap frame into which MultiDOS will load
programs
----------1520-------------------------------
INT 15 - MultiDOS Plus 4.01 - CHECK IF MULTITASKING ENABLED
AH = 20h
Return: AX = current state
0000h multitasking enabled
other TCB of task that disabled multitasking
SeeAlso: AH=0Dh"MultiDOS",AH=13h"MultiDOS"
----------152000-----------------------------
INT 15 - DOS 3+ PRINT.COM - DISABLE CRITICAL REGION FLAG
AX = 2000h
SeeAlso: AX=2001h
----------152001-----------------------------
INT 15 - DOS 3+ PRINT.COM - SET CRITICAL REGION FLAG
AX = 2001h
ES:BX -> byte which is to be incremented while in a DOS call
SeeAlso: AX=2000h
----------152010-----------------------------
INT 15 - OS HOOK - SETUP SYSREQ ROUTINE (AT,XT286,PS50+)
AX = 2010h
???
Return: ???
SeeAlso: AX=2011h
----------152011-----------------------------
INT 15 - OS HOOK - COMPLETION OF SYSREQ FUNCTION (AT,XT286,PS50+)
AX = 2011h
???
Return: ???
SeeAlso: AX=2010h
----------1521-------------------------------
INT 15 - SYSTEM - POWER-ON SELF-TEST ERROR LOG (PS50+)
AH = 21h
AL = subfunction
00h read POST log
01h write POST log
BH = device ID
BL = error code
Return: CF set on error
AH = status (00h OK, 01h list full, 80h invalid cmd, 86h unsupported)
if function 00h:
BX = number of error codes stored
ES:DI -> error log
Note: the log is a series of words, the first byte of which identifies the
error code and the second the device.
----------1540-------------------------------
INT 15 - SYSTEM - READ/MODIFY PROFILES (CONVERTIBLE)
AH = 40h
AL = subfunction
00h get system profile in CX and BX
01h set system profile from CX and BX
02h get internal modem profile in BX
03h set internal modem profile from BX
----------154000-----------------------------
INT 15 - Compaq SLT/286 or Portable 386 - READ LCD/PLASMA TIMEOUT
AX = 4000h
Return: AX = 4000h
CL = 00h timeout disabled
else timeout in minutes
SeeAlso: AX=4001h,AX=4600h
----------154001CL00-------------------------
INT 15 - Compaq SLT/286 or Portable 386 - SET LCD/PLASMA TIMEOUT
AX = 4001h
CL = 00h timeout disabled
else timeout in minutes
Return: AL = 00h timeout modified
01h timeout cannot be modified
40h timeout cannot be modified
CL = 00h timeout disabled
else timeout in minutes
SeeAlso: AX=4000h,AX=4601h
----------1541-------------------------------
INT 15 - SYSTEM - WAIT ON EXTERNAL EVENT (CONVERTIBLE)
AH = 41h
AL = condition type
bits 0-2: condition to wait for
0 any external event
1 compare and return if equal
2 compare and return if not equal
3 test and return if not zero
4 test and return if zero
bit 3: reserved
bit 4: 1=port address, 0=user byte
bits 5-7: reserved
BH = condition compare or mask value
BL = timeout value times 55 milliseconds
00h means no timeout
DX = I/O port address if AL bit 4 set
ES:DI -> user byte if AL bit 4 clear
----------1542-------------------------------
INT 15 - SYSTEM - REQUEST POWER OFF (CONVERTIBLE)
AH = 42h
AL = 00h to use system profile
01h to force suspend regardless of system profile
SeeAlso: AH=44h
----------154280-----------------------------
INT 15 - Compaq SLT/286 - ENTER STANDBY
AX = 4280h
Return: AH = 42h
CF clear if successful
CF set if unable to enter standby
SeeAlso: AX=4600h
----------1543-------------------------------
INT 15 - SYSTEM - READ SYSTEM STATUS (CONVERTIBLE)
AH = 43h
Return: AL = status bits
bit 0: LCD detached
bit 1: reserved
bit 2: RS232/parallel adapter powered on
bit 3: internal modem powered on
bit 4: power activated by alarm
bit 5: standby power lost
bit 6: external power in use
bit 7: power low
----------1544-------------------------------
INT 15 - SYSTEM - (DE)ACTIVATE INTERNAL MODEM POWER (CONVERTIBLE)
AH = 44h
AL = 00h to power off
01h to power on
SeeAlso: AH=42h
----------154600-----------------------------
INT 15 - Compaq SLT/286 - READ POWER CONSERVATION/MODEM CONFIGURATION
AX = 4600h
Return: AH = modem configuration information
bit 0 powerup state
0 off
1 on
1 modem installed
2 IRQ line assignment
0 IRQ 4
1 IRQ 3
3 COM port assignment
0 = COM 2
1 = COM 1
4 modem state
0 not assigned
1 assigned
5 modem is on
AL = power conservation status information
bit 0 power source (0 internal, 1 external)
1-2 low battery state
00 no low battery condition
01 low battery 1
10 reserved
11 low battery 2
3-4 power conservation mode
00 automatic
01 on
10 off
11 reserved
BH = default system inactivity timeout (1-21 minutes)
BL = current system inactivity timeout (1-21 minutes)
CH = default video display inactivity timeout (1-63 minutes)
CL = current video display inactivity timeout (1-63 minutes)
DH = default fixed disk drive inactivity timeout (1-21 minutes)
DL = current fixed disk drive inactivity timeout (1-21 minutes)
SeeAlso: AX=4280h,AX=4601h,INT 77
----------154601-----------------------------
INT 15 - Compaq SLT/286 - Modify Power Conservation/Modem Configuration
AX = 4601h
BL = system inactivity timeout (1-21 minutes)
= FFh do not change
CL = video display inactivity timeout (1-63 minutes)
= FFh do not change
DL = current fixed disk drive inactivity timeout (1-21 minutes)
= FFh do not change
DH = 00h turn modem OFF
= 01h turn modem ON
= FFh do not change modem state
Return: CF clear if successful
AH = 00h
BL = current system inactivity timeout (1-21 minutes)
CL = current video display inactivity timeout (1-63 minutes)
DL = current fixed disk drive inactivity timeout (1-21 minutes)
DH = FFh modem state unchanged
= 00h modem turned OFF
= 01h modem turned ON
CF set on error
AH = 01h input is out of range
= 02h - No modem present
SeeAlso: AX=4600h,INT 77
----------154F-------------------------------
INT 15 - OS HOOK - KEYBOARD INTERCEPT (AT model 3x9,XT2,XT286,CONV,PS)
AH = 4Fh
AL = scan code
CF set
Return: CF set
AL = scan code
CF clear
scan code should be ignored
Note: called by INT 9 handler to translate scan codes
SeeAlso: INT 09
----------155400-----------------------------
INT 15 - Omniview Multitasker - INSTALLATION NOTIFICATION
AX = 5400h
ES:BX -> device information tables
DI:DX -> dispatcher entry point
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5407h
----------155401-----------------------------
INT 15 - Omniview Multitasker - PROCESS CREATION
AX = 5401h
ES:BX = process handle
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5402h
----------155402-----------------------------
INT 15 - Omniview Multitasker - PROCESS DESTRUCTION
AX = 5402h
ES:DX = process handle
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5401h
----------155403-----------------------------
INT 15 - Omniview Multitasker - SAVE
AX = 5403h
ES:DX = process swapping out
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5404h
----------155404-----------------------------
INT 15 - Omniview Multitasker - RESTORE
AX = 5404h
ES:DX = process swapping in
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5403h
----------155405-----------------------------
INT 15 - Omniview Multitasker - SWITCHING TO BACKGROUND
AX = 5405h
ES:DX = process swapping in
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5406h
----------155406-----------------------------
INT 15 - Omniview Multitasker - SWITCHING TO FOREGROUND
AX = 5406h
ES:DX = process swapping in
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5405h
----------155407-----------------------------
INT 15 - Omniview Multitasker - EXIT NOTIFICATION
AX = 5407h
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5400h
----------1580-------------------------------
INT 15 - OS HOOK - DEVICE OPEN (AT,XT286,PS)
AH = 80h
BX = device ID
CX = process ID
CF clear
Return: CF clear if successful
AH = 00h
CF set on error
AH = status
80h invalid command (PC,PCjr)
86h function not supported (XT)
Note: this function should be hooked by a multitasker which wishes to keep
track of device ownership; the default BIOS handler merely returns
successfully
SeeAlso: AH=81h,AH=82h
----------1581-------------------------------
INT 15 - OS HOOK - DEVICE CLOSE
AH = 81h
BX = device ID
CX = process ID
CF clear
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (see AH=80h)
Note: this function should be hooked by a multitasker which wishes to keep
track of device ownership; the default BIOS handler merely returns
successfully
SeeAlso: AH=80h,AH=82h
----------1582-------------------------------
INT 15 - OS HOOK - PROGRAM TERMINATION
AH = 82h
BX = process ID
CF clear
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (see AH=80h)
Notes: closes all devices opened by the given process ID with function 80h
this function should be hooked by a multitasker which wishes to keep
track of device ownership; the default BIOS handler merely returns
successfully
SeeAlso: AH=80h,AH=81h
----------1583-------------------------------
INT 15 - BIOS - SET EVENT WAIT INTERVAL (AT,PS50+)
AH = 83h
AL = subfunction
00h set interval
CX:DX = microseconds to delay
ES:BX -> byte whose high bit is to be set at end of interval
01h cancel wait interval
Return: CF set on error or function already busy
AH = status
80h invalid command (PC,PCjr)
86h function not supported (XT and later)
CF clear if successful
Note: the resolution of the wait period is 977 microseconds on most systems
because most BIOSes use the 1/1024 second fast interrupt from the AT
real-time clock chip which is available on INT 70
SeeAlso: AH=86h,INT 70
----------1584-------------------------------
INT 15 - BIOS - JOYSTICK SUPPORT (XT after 11/8/82,AT,XT286,PS)
AH = 84h
DX = subfunction
0000h read joystick switches
Return: AL bits 7-4 = switch settings
0001h read positions of joysticks
Return: AX = X position of joystick A
BX = Y position of joystick A
CX = X position of joystick B
DX = Y position of joystick B
Return: CF set on error
AH = status
80h invalid command (PC,PCjr)
86h function not supported (other)
CF clear if successful
Notes: if no game port is installed, subfunction 0000h returns AL=00h (all
switches open) and subfunction 0001h returns AX=BX=CX=DX=0000h
a 250kOhm joystick typically returns 0000h-01A0h
----------1585-------------------------------
INT 15 - OS HOOK - SysRq KEY ACTIVITY (AT,PS)
AH = 85h
AL = 00h SysRq key pressed
= 01h SysRq key released
CF clear
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (see AH=84h)
Notes: called by keyboard decode routine
the default handler simply returns successfully; programs which wish
to monitor the SysRq key must hook this call
SeeAlso: INT 09
----------1586-------------------------------
INT 15 - BIOS - WAIT (AT,PS)
AH = 86h
CX:DX = interval in microseconds
Return: CF clear if successful (wait interval elapsed)
CF set on error or AH=83h wait already in progress
AH = status (see AH=84h)
Note: the resolution of the wait period is 977 microseconds on most systems
because most BIOSes use the 1/1024 second fast interrupt from the AT
real-time clock chip which is available on INT 70
SeeAlso: AH=83h,INT 70
----------1587-------------------------------
INT 15 - SYSTEM - COPY EXTENDED MEMORY
AH = 87h
CX = number of words to copy (max 8000h)
ES:SI -> global descriptor table
Return: CF set on error
CF clear if successful
AH = status
00h source copied into destination
01h parity error
02h interrupt error
03h address line 20 gating failed
80h invalid command (PC,PCjr)
86h unsupported function (XT,PS30)
Notes: copy is done in protected mode with interrupts disabled
this function is incompatible with the OS/2 compatibility box
SeeAlso: AH=88h,AH=89h
Format of global descriptor table:
Offset Size Description
00h 16 BYTEs zeros
10h WORD source segment length in bytes (2*CX-1 or greater)
12h 3 BYTEs 24-bit linear source address, low byte first
15h BYTE source segment access rights (93h)
16h WORD zero
18h WORD destination segment length in bytes (2*CX-1 or greater)
1Ah 3 BYTEs 24-bit linear destination address, low byte first
1Dh BYTE destination segment access rights (93h)
1Eh 18 BYTEs zeros
----------1588-------------------------------
INT 15 - SYSTEM - GET EXTENDED MEMORY SIZE (286+)
AH = 88h
Return: CF clear if successful
AX = number of contiguous KB starting at absolute address 100000h
CF set on error
AH = status
80h invalid command (PC,PCjr)
86h unsupported function (XT,PS30)
Note: TSRs which wish to allocate extended memory to themselves often hook
this call, and return a reduced memory size. They are then free to
use the memory between the new and old sizes at will.
SeeAlso: AH=87h
----------1589-------------------------------
INT 15 - SYSTEM - SWITCH TO PROTECTED MODE
AH = 89h
BL = interrupt number of IRQ0 (IRQ1-7 use next 7 interrupts)
BH = interrupt number of IRQ8 (IRQ9-F use next 7 interrupts)
ES:SI -> GDT for protected mode
offset 0h null descriptor (initialize to zeros)
8h GDT descriptor
10h IDT descriptor
18h DS
20h ES
28h SS
30h CS
38h uninitialized, used to build descriptor for BIOS CS
CX = offset into protected-mode CS to jump to
Return: CF set on error
AH = FFh error enabling address line 20
CF clear if successful
AH = 00h
in protected mode at specified address
Note: BL and BH must be multiples of 8
SeeAlso: AH=87h,AH=88h,INT 67/AX=DE0Ch
----------1590-------------------------------
INT 15 - OS HOOK - DEVICE BUSY (AT,PS)
AH = 90h
AL = device type
00h disk
01h diskette
02h keyboard
03h PS/2 pointing device
21h waiting for keyboard input (Phoenix BIOS)
80h network
FCh disk reset (PS)
FDh diskette motor start
FEh printer
ES:BX -> request block for type codes 80h through BFh
CF clear
Return: CF set if wait time satisfied
CF clear if driver must perform wait
AH = 00h
Notes: type codes are allocated as follows:
00-7F non-reentrant devices; OS must arbitrate access
80-BF reentrant devices; ES:BX points to a unique control block
C0-FF wait-only calls, no complementary INT 15/AH=91h call
this function should be hooked by a multitasker to allow other tasks
to execute while the BIOS is waiting for I/O completion; the default
handler merely returns with AH=00h and CF clear
SeeAlso: AH=91h
----------1591-------------------------------
INT 15 - OS HOOK - DEVICE POST (AT,PS)
AH = 91h
AL = device type (see AH=90h)
ES:BX -> request block for type codes 80h through BFh
CF clear
Return: AH = 00h
Note: this function should be hooked by a multitasker to allow other tasks
to execute while the BIOS is waiting for I/O completion; the default
handler merely returns with AH=00h and CF clear
SeeAlso: AH=90h
----------15BC-------------------------------
INT 15 - Phoenix 386 BIOS - DETERMINE CPU SPEED
AH = BCh
Return: CF clear
BYTE 0040h:00B0h set to ??? (43 on my 386/33)
Note: reads system timer channel 0 twice, then does calculations on returned
values
----------15BF02DX0000-----------------------
INT 15 - Rational Systems DOS/16M - INSTALLATION CHECK
AX = BF02h
DX = 0000h
Return: DX = nonzero if installed
DX:SI -> XBRK structure
SeeAlso: INT 2F/AH=A1h,INT 2F/AX=F100h,INT 2F/AX=FBA1h
----------15C0-------------------------------
INT 15 - SYSTEM - GET CONFIGURATION (XT after 1/10/86,AT mdl 3x9,CONV,XT286,PS)
AH = C0h
Return: CF set if BIOS doesn't support call
CF clear on success
ES:BX -> ROM table (see below)
AH = status
00h successful
86h unsupported function
Notes: the 1/10/86 XT BIOS returns an incorrect value for the feature byte
the configuration table is at F000h:E6F5h in 100% compatible BIOSes
Format of ROM configuration table:
Offset Size Description
00h WORD number of bytes following
02h BYTE model (see below)
03h BYTE submodel (see below)
04h BYTE BIOS revision: 0 for first release, 1 for 2nd, etc.
05h BYTE features:
bit 7 = DMA channel 3 used by hard disk BIOS
bit 6 = 2nd 8259 installed
bit 5 = Real-Time Clock installed
bit 4 = INT 15h/AH=4Fh called upon INT 9h
bit 3 = wait for external event supported
bit 2 = extended BIOS area allocated (usually at top of RAM)
bit 1 = bus is Micro Channel instead of ISA
bit 0 reserved
06h WORD reserved (0)
08h WORD reserved (0)
0Ah AWARD copyright notice here
Values for model/submodel/revision:
Model Submdl Rev BIOS date System
FFh * * 04/24/81 PC (original)
FFh * * 10/19/81 PC (some bugfixes)
FFh * * 10/27/82 PC (HD, 640K, EGA support)
FFh 46h *** ??? Olivetti M15
FEh * * 08/16/82 PC XT
FEh * * 11/08/82 PC XT and Portable
FEh 43h *** ??? Olivetti M240
FDh * * 06/01/83 PCjr
FCh * * 01/10/84 AT models 068,099 6 MHz 20MB
FCh 00h 01h 06/10/85 AT model 239 6 MHz 30MB
FCh 00h <> 01h ??? 7531/2 Industrial AT
FCh 01h 00h 11/15/85 AT models 319,339 8 MHz, Enh Keyb, 3.5"
FCh 01h 00h 01/15&88 Toshiba T5200/100
FCh 01h 00h 12/26*89 Toshiba T1200/XE
(Those date characters are not typos)
FCh 01h ??? ??? Compaq 286/386
FCh 02h 00h 04/21/86 PC XT-286
FCh 04h 00h 02/13/87 ** PS/2 Model 50
FCh 04h 03h 04/18/88 PS/2 Model 50Z
FCh 05h 00h 02/13/87 ** PS/2 Model 60
FCh 06h ??? ??? 7552 "Gearbox"
FCh 09h 02h 06/28/89 PS/2 Model 30-286
FCh 0Bh 00h 02/16/90 PS/1
FCh 42h *** ??? Olivetti M280
FCh 45h *** ??? Olivetti M380 (XP 1, XP3, XP 5)
FCh 48h *** ??? Olivetti M290
FCh 4Fh *** ??? Olivetti M250
FCh 50h *** ??? Olivetti M380 (XP 7)
FCh 51h *** ??? Olivetti PCS286
FCh 52h *** ??? Olivetti M300
FCh 81h 00h 01/15/88 Phoenix 386 BIOS v1.10 10a
FBh 00h 01h 01/10/86 PC XT, Enh Keyb, 3.5" support
FBh 00h 02h 05/09/86 PC XT
FBh 4Ch *** ??? Olivetti M200
FAh 00h 00h 09/02/86 PS/2 Model 30
FAh 00h 01h 12/12/86 PS/2 Model 30
FAh 01h 00h ??? PS/2 Model 25
FAh 4Eh *** ??? Olivetti M111
F9h 00h 00h 09/13/85 PC Convertible
F8h 00h 00h 03/30/87 ** PS/2 Model 80 16MHz
F8h 01h 00h 10/07/87 PS/2 Model 80 20MHz
F8h 04h 02h 04/11/88 PS/2 Model 70 20MHz, type 2 system brd
F8h 04h 03h 03/17/89 PS/2 Model 70 20MHz, type 2 system brd
F8h 09h ??? ??? PS/2 Model 70 16MHz, type 1 system brd
F8h 09h 02h 04/11/88 PS/2 Model 70 some models
F8h 09h 03h 03/17/89 PS/2 Model 70 some models
F8h 0Bh 00h 01/18/89 PS/2 Model P70 (8573-121) typ 2 sys brd
F8h 0Bh 02h 12/16/89 PS/2 Model P70 ??
F8h 0Ch 00h 11/02/88 PS/2 Model 55SX
F8h 0Dh ??? ??? PS/2 Model 70 25MHz, type 3 system brd
F8h 11h 00h 10/01/90 PS/2 Model ??
F8h 13h 00h 10/01/90 PS/2 Model ??
F8h 14h 00h 10/01/90 PS/2 Model 90-AK9
F8h 16h 00h 10/01/90 PS/2 Model 90-AKD
F8h 1Bh 00h 10/02/89 PS/2 Model 70-486
F8h 1Ch 00h 02/08/90 PS/2 Model 65-121
F8h 1Eh 00h 02/08/90 PS/2 Model ??
F8h 50h 00h ??? PS/2 Model P70 (8573) 16 MHz
F8h 50h 01h 12/16/89 PS/2 Model P70 (8570-031)
F8h 61h *** ??? Olivetti P500
F8h 62h *** ??? Olivetti P800
F8h 80h 01h 11/21/89 PS/2 Model 80-A21
9Ah * * ??? Compaq XT/Compaq Plus
30h ??? ??? ??? Sperry PC
2Dh * * ??? Compaq PC/Compaq Deskpro
* This BIOS call is not implemented in these early versions.
Read Model byte at F000h:FFFEh and BIOS date at F000h:FFF5h.
** These BIOS versions require the DASDDRVR.SYS patches.
*** These Olivetti machines store the submodel in the byte at F000h:FFFDh.
----------15C1-------------------------------
INT 15 - SYSTEM - RETURN EXTENDED-BIOS DATA-AREA SEGMENT ADDRESS (PS)
AH = C1h
Return: CF set on error
CF clear if successful
ES = segment of data area
SeeAlso: AH=04h"ABIOS"
----------15C200BH00-------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - ENABLE/DISABLE
AX = C200h
BH = 00h disable
01h enable
Return: CF set on error
AH = status
00h successful
01h invalid function
02h invalid input
03h interface error
04h need to resend
05h no device handler installed
----------15C201-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - RESET
AX = C201h
Return: CF set on error
AH = status (see AX=C200h)
CF clear if successful
BH = device ID
SeeAlso: INT 33/AX=0000h
----------15C202-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET SAMPLING RATE
AX = C202h
BH = sampling rate
00h 10/second
01h 20/second
02h 40/second
03h 60/second
04h 80/second
05h 100/second
06h 200/second
Return: CF set on error
AH = status (see AX=C200h)
SeeAlso: INT 33/AX=001Ch
----------15C203-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET RESOLUTION
AX = C203h
BH = resolution
00h one count per mm
01h two counts per mm
02h four counts per mm
03h eight counts per mm
Return: CF set on error
AH = status (see AX=C200h)
----------15C204-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - GET TYPE
AX = C204h
Return: CF set on error
AH = status (see AX=C200h)
CF clear if successful
BH = device ID
----------15C205-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - INITIALIZE
AX = C205h
BH = data package size (1 - 8 bytes)
Return: CF set on error
AH = status (see AX=C200h)
SeeAlso: AX=C201h
----------15C206-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - GET/SET SCALING FACTOR
AX = C206h
BH = subfunction
00h return device status
Return: BL = status
bit 0: right button pressed
bit 1: reserved
bit 2: left button pressed
bit 3: reserved
bit 4: 0 if 1:1 scaling, 1 if 2:1 scaling
bit 5: device enabled
bit 6: 0 if stream mode, 1 if remote mode
bit 7: reserved
CL = resolution (see AX=C203h)
DL = sample rate, reports per second
01h set scaling at 1:1
02h set scaling at 2:1
Return: CF set on error
AH = status (see AX=C200h)
----------15C207-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET DEVICE HANDLER ADDR
AX = C207h
ES:BX = user device handler
Return: CF set on error
AH = status (see AX=C200h)
SeeAlso: INT 33/AX=000Ch
----------15C3------------------------------
INT 15 - SYSTEM - ENABLE/DISABLE WATCHDOG TIMEOUT (PS50+)
AH = C3h
AL = 00h disable
01h enable
BX = timer counter
Return: CF set on error
CF clear if successful
Note: the watchdog timer generates an NMI
----------15C4-------------------------------
INT 15 - SYSTEM - PROGRAMMABLE OPTION SELECT (PS50+)
AH = C4h
AL = 00h return base POS register address
01h enable slot
BL = slot number
02h enable adapter
Return: CF set on error
DX = base POS register address (if function 00h)
----------15C5-------------------------------
INT 15 - OS HOOK (undoc) - ROM BIOS TRACING CALLOUT (PS30/286,PS50Z,PS95)
AH = C5h
AL = interrupt being invoked
01h INT 19
02h INT 14
03h INT 16
04h INT 40 (floppy INT 13)
05h INT 17
06h INT 10
07h INT 12
08h INT 11
09h INT 1A
Return: all registers except AX must be preserved
Notes: called as the very first action of the indicated ROM BIOS interrupt
handlers on the PS/2 Models 30/286, 50Z, and 95
default handler does nothing and returns CF clear for the above
subfunctions, CF set and AH=86h for all other subfunctions
value of AX passed to the original interrupt handler is pushed on
stack immediately prior to call
----------15C6-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = C6h
???
Return: ???
----------15C7-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = C7h
???
Return: ???
----------15C8-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = C8h
???
Return: ???
----------15C9-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = C9h
???
Return: ???
----------15CA-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CAh
???
Return: ???
----------15CB-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CBh
???
Return: ???
----------15CC-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CCh
???
Return: ???
----------15CD-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CDh
???
Return: ???
----------15CE-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CEh
???
Return: ???
----------15CF-------------------------------
INT 15 - PS/2 Model 95 - ???
AH = CFh
???
Return: ???
----------15D800-----------------------------
INT 15 - EISA SYSTEM ROM - READ SLOT CONFIGURATION INFORMATION
AX = D800h
CL = slot number (including embedded and virtual)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
80h invalid slot number
82h EISA CMOS corrupt
83h empty slot
86h invalid BIOS-FW function call
87h invalid system configuration
AL bit flags
bit 7: set if duplicate IDs
6: set if product ID readable
4,5: slot type (00=expansion, 01=embedded, 10=virtual device)
0-3: duplicate ID number if bit 7 set
BH = major revision level of configuration utility
BL = minor revision level of configuration utility
CX = checksum of configuration file
DH = number of device functions
DL = combined function information byte
SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
Note: call with AL=80h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D801h,AX=D804h
----------15D801-----------------------------
INT 15 - EISA SYSTEM ROM - READ FUNCTION CONFIGURATION INFORMATION
AX = D801h
CH = function number to read
CL = slot number (including embedded and virtual)
DS:SI -> 320-byte buffer for standard configuration data block
Return: CF clear if successful
AH = 00h
DS:SI buffer filled
CF set on error
AH = error code
80h invalid slot number
81h invalid function number
82h EISA CMOS corrupt
83h empty slot
86h invalid BIOS-FW function call
87h invalid system configuration
BX destroyed
Note: call with AL=81h if using 32-bit CS addressing mode instead of 16-bit
----------15D802-----------------------------
INT 15 - EISA SYSTEM ROM - CLEAR NONVOLATILE MEMORY (EISA CMOS)
AX = D802h
BH = EISA config utility major revision level
BL = EISA config utility minor revision level
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
84h error clearing CMOS
86h invalid BIOS-FW function call
88h config utility version not supported
Note: call with AL=82h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D803h
----------15D803-----------------------------
INT 15 - EISA SYSTEM ROM - WRITE NONVOLATILE MEMORY
AX = D803h
CX = length of data structure (0000h = empty slot)
includes two bytes for config file checksum
DS:SI -> configuration data
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
84h error clearing CMOS
85h EISA CMOS is full
86h invalid BIOS-FW function call
Note: call with AL=83h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D802h
----------15D804-----------------------------
INT 15 - EISA SYSTEM ROM - READ PHYSICAL SLOT
AX = D804h
CL = slot number (including embedded and virtual)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code
80h invalid slot number
83h empty slot
86h invalid BIOS-FW function call
SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
Note: call with AL=84h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D800h
----------15D8-------------------------------
INT 15 - EISA SYSTEM ROM - 32-bit CS ADDRESSING MODE CALLS
AH = D8h
AL = 80h to 84h
other registers as appropriate for AL=00h to 04h
Return: as appropriate for AL=00h to 04h
Note: these functions are identical to AX=D800h to D804h, except that they
should be called when using 32-bit CS addressing mode (pointers use
ESI rather than SI as offset) instead of 16-bit addressing mode
SeeAlso: AX=D800h,AX=D801h,AX=D802h,AX=D803h,AX=D804h
----------15DE00-----------------------------
INT 15 - DESQview - GET PROGRAM NAME
AX = DE00h
Return: AX = offset into DESQVIEW.DVO of current program's record (see below)
SeeAlso: AX=DE07h
Format of program entry in DESQVIEW.DVO:
Offset Size Description
00h BYTE length of name
01h N BYTEs name
2 BYTEs keys to invoke program (second = 00h if only one key used)
WORD ??? seems always to be 0000h
BYTE end flag: 00h for all but last entry, which is FFh
----------15DE01-----------------------------
INT 15 - DESQview - UPDATE "OPEN WINDOW" MENU
AX = DE01h
Return: nothing
Note: reads DESQVIEW.DVO, disables Open menu if file not in current directory
----------15DE02-----------------------------
INT 15 - DESQview 1.x only - SET ??? FLAG FOR CURRENT WINDOW
AX = DE02h
Return: nothing
Note: this call is a NOP in DV 2.x
SeeAlso: AX=DE03h
----------15DE03-----------------------------
INT 15 - DESQview 1.x only - GET ??? FOR CURRENT WINDOW
AX = DE03h
Return: AX = ??? for current window
BX = ??? for current window
Note: this call is a NOP in DV 2.x
SeeAlso: AX=DE02h
----------15DE04-----------------------------
INT 15 - DESQview - GET AVAILABLE COMMON MEMORY
AX = DE04h
Return: BX = bytes of common memory available
CX = largest block available
DX = total common memory in bytes
SeeAlso: AX=DE05h,AX=DE06h
----------15DE05-----------------------------
INT 15 - DESQview - GET AVAILABLE CONVENTIONAL MEMORY
AX = DE05h
Return: BX = K of memory available
CX = largest block available
DX = total conventional memory in K
SeeAlso: AX=DE04h,AX=DE06h
----------15DE06-----------------------------
INT 15 - DESQview - GET AVAILABLE EXPANDED MEMORY
AX = DE06h
Return: BX = K of expanded memory available
CX = largest block available
DX = total expanded memory in K
SeeAlso: AX=DE04h,AX=DE05h
----------15DE07-----------------------------
INT 15 - DESQview - "APPNUM" - GET CURRENT PROGRAM'S NUMBER
AX = DE07h
Return: AX = number of program as it appears on the "Switch Windows" menu
Note: this API call may be made from a hardware interrupt handler
SeeAlso: AX=DE00h
----------15DE08-----------------------------
INT 15 - DESQview - GET ???
AX = DE08h
Return: AX = 0000h if ??? is not set to the current task
0001h if ??? is set to the current task
----------15DE09-----------------------------
INT 15 - DESQview - UNIMPLEMENTED
AX = DE09h
Return: nothing (NOP in DV 1.x and 2.x)
----------15DE0A-----------------------------
INT 15 - DESQview 2.x - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE
AX = DE0Ah
BL = character
Return: character displayed, next call will display in next position (which
wraps back to the start of the line if off the right edge of screen)
Notes: displays character on bottom line of *physical* screen, regardless
of current size of window (even entirely hidden)
does not know about graphics display modes, just pokes the characters
into display memory
this API call may be made from a hardware interrupt handler
SeeAlso: AX=1003h
----------15DE0B-----------------------------
INT 15 - DESQview 2.x - "APILEVEL" - DEFINE MINIMUM API LEVEL REQUIRED
AX = DE0Bh
BL = API level major version number
BH = API level minor version number
Return: AX = maximum API level (AL = major, AH = minor)
Notes: if the requested API level is greater than the version of DESQview, a
"You need a newer version" error window is popped up
the API level defaults to 1.00, and is inherited by child tasks
some early copies of DV 2.00 return AX=0200h instead of 0002h
----------15DE0C-----------------------------
INT 15 - DESQview 2.x - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
AX = DE0Ch
BX = number of bytes
Return: ES:DI -> allocated block or 0000h:0000h (DV 2.26+)
Note: use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
system memory
SeeAlso: AX=1001h,AX=DE0Dh,AX=DE15h
----------15DE0D-----------------------------
INT 15 - DESQview 2.x - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
AX = DE0Dh
ES:DI -> previously allocated block
Return: nothing
SeeAlso: AX=1002h,AX=DE0Ch
----------15DE0E-----------------------------
INT 15 - DESQview 2.x - "FINDMAIL" - FIND MAILBOX BY NAME
AX = DE0Eh
ES:DI -> name to find
CX = length of name
Return: BX = 0000h not found
0001h found
DS:SI = object handle
SeeAlso: AH=12h/BH=11h
----------15DE0F-----------------------------
INT 15 - DESQview 2.x - ENABLE DESQview EXTENSIONS
AX = DE0Fh
Return: AX and BX destroyed (seems to be bug, weren't saved&restored)
Notes: sends a manager stream with opcodes AEh, BDh, and BFh to task's window
enables an additional mouse mode
----------15DE10-----------------------------
INT 15 - DESQview 2.x - "PUSHKEY" - PUT KEY INTO KEYBOARD INPUT STREAM
AX = DE10h
BH = scan code
BL = character
Return: nothing
Notes: a later read will get the keystroke as if it had been typed by the user
multiple pushes are read last-in first-out
if a script exists for the pushed key in the current application, the
script will be executed
early copies of DV 2.00 destroy AX, BX, ES, and DI
SeeAlso: INT 16/AH=05h
----------15DE11BL00-------------------------
INT 15 - DESQview 2.x - ENABLE/DISABLE AUTOMATIC JUSTIFICATION OF WINDOW
AX = DE11h
BL = 00h viewport will not move automatically
nonzero viewport will move to keep cursor visible (default)
Return: nothing
----------15DE12BX0000-----------------------
INT 15 - DESQview 2.01+ - "CSTYLE" - SET "C"-COMPATIBLE CONTROL CHAR INTERPRET
AX = DE12h
BX = 0000h select normal style (linefeed only moved down)
nonzero select C style (linefeed moves to start of next line)
Return: nothing
Note: set on a per-task basis, and inherited from the parent task
----------15DE13-----------------------------
INT 15 - DESQview 2.2+ - GET CRITICAL NESTING COUNT
AX = DE13h
Return: BX = number of calls to BEGINC or ENTERC (see INT 15/AX=101Bh,DE1Ch)
without matching ENDC (see INT 15/AX=101Ch)
Note: this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=101Ch,AX=DE1Bh,AX=DE1Ch
----------15DE14-----------------------------
INT 15 - DESQview 2.2+ - GET OBJECT TYPE
AX = DE14h
ES:DI -> object
Return: BL = 00h not an object
08h window or task
09h mailbox
0Ah keyboard
0Bh timer
0Ch objectq
0Fh pointer
10h panel
SeeAlso: AX=1016h
----------15DE15BL00-------------------------
INT 15 - DESQview 2.2+ - SET ERROR HANDLING
AX = DE15h
BL = 00h post system error on all error conditions
01h return carry flag set on calls to ADDTO, SUBFROM, and WRITE
messages sent to mailboxes which fail due to lack of system
or common memory
02h (v2.26+) same as 01h, but return null pointer for GETMEM
calls which fail due to lack of system memory
Return: nothing
SeeAlso: AX=DE16h
----------15DE16-----------------------------
INT 15 - DESQview 2.2+ - GET ERROR HANDLING
AX = DE16h
Return: BL = 00h always post system error
01h return carry flag set on failed mailbox writes
02h return CF set on failed mailbox writes and NULL on failed
GETMEM calls
SeeAlso: AX=DE15h
----------15DE17-----------------------------
INT 15 - DESQview 2.20-2.25 - reserved
AX = DE17h
Return: pops up "Programming error" window
Note: AX = 1117h is NOT identical to this call under DESQview 2.20 thru 2.25
SeeAlso: AX=1117h
----------15DE17BX0000-----------------------
INT 15 - DESQview 2.26+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
AX = DE17h
BX = 0000h get current mapping context without setting
nonzero set new mapping context
Return: BX = mapping context in effect before call
Notes: mapping contexts determine conventional-memory addressability; setting
a mapping context ensures that the associated program and data areas
are in memory for access. Usable by drivers, TSRs and shared
programs.
caller need not be running under DESQview
this API call may be made from a hardware interrupt handler
SeeAlso: AX=1117h,INT 2F/AX=1685h
----------15DE18-----------------------------
INT 15 - DESQview 2.2+ internal -
AX = DE18h
BP = function number
high byte must be 10h
low byte is function
00h set ???
BL = ??? (00h-10h, video mode???)
BH = value to store
03h set ???
BL = ??? (stored in driver)
0Ah get ???
ES:DI -> 18-byte buffer to hold ???
Note: calls video driver (NOP for Hercules driver,probably CGA and MCGA also)
----------15DE19-----------------------------
INT 15 - DESQview 2.23+ - "GETCOMMON" - ALLOCATE "COMMON" MEMORY
AX = DE19h
BX = number of bytes to allocate
Return: AX = 0000h successful
ES:DI -> allocated block
nonzero insufficient memory
Note: this API call may be made from within a hardware interrupt handler
SeeAlso: AX=DE0Ch,AX=DE15h,AX=DE1Ah
----------15DE1A-----------------------------
INT 15 - DESQview 2.23+ - "PUTCOMMON" - DEALLOCATE "COMMON" MEMORY
AX = DE1Ah
DS:SI -> previously allocated block
Note: this function may be called from within a hardware interrupt handler
SeeAlso: AX=DE0Dh,AX=DE19h
----------15DE1B-----------------------------
INT 15 - DESQview 2.23+ internal - DECREMENT CRITICAL NESTING COUNT
AX = DE1Bh
Return: nothing
SeeAlso: AX=101Ch,AX=DE13h,AX=DE1Ch
----------15DE1C-----------------------------
INT 15 - DESQview 2.23+ - "ENTERC" - INCREMENT CRITICAL NESTING COUNT
AX = DE1Ch
Return: nothing
Notes: similar to AX=101Bh, but begins the critical region without ensuring
that DOS is free
the official documentation states that this call should be paired with
"ENDC" (AX=101Ch); no mention is made of AX=DE1Bh
this API call may be made from within a hardware interrupt handler
SeeAlso: AX=101Bh,AX=101Ch,AX=DE13h,AX=DE1Bh
----------15DE1D-----------------------------
INT 15 - DESQview 2.23+ - "PUTKEY" - FAKE USER KEYSTROKES
AX = DE1Dh
DX = segment of handle for task to receive keystroke
BL = character
BH = scan code
Return: AX = 0000h if successful
nonzero if receiver's keyboard buffer was full
Notes: the key is treated as though the user had pressed it, ignoring any
script which may be bound to the key, and using the current field
table if the keyboard object is in field processing mode
multiple PUTKEYs are seen in the order in which they are executed
SeeAlso: AX=DE10h
----------15DE1E-----------------------------
INT 15 - DESQview 2.23+ - "SCRNINFO" - GET TRUE VIDEO PARAMETERS
AX = DE1Eh
Return: CL = actual number of rows on screen
CH = actual number of columns on screen
BL = actual video mode (may differ from INT 10/AH=0Fh return) (v2.26+)
Note: this API call may be made from a hardware interrupt handler
SeeAlso: INT 10/AH=0Fh
----------15DE1F-----------------------------
INT 15 - DESQview 2.23+ - "DOSUSER" - GET HANDLE OF TASK CURRENTLY USING DOS
AX = DE1Fh
Return: BX = segment of task handle or 0000h if no tasks are using DOS
Note: this API call may be made from within a hardware interrupt handler
SeeAlso: AX=DE13h
----------15DE20-----------------------------
INT 15 - DESQview 2.26+ - "DISPATCHINT" - INTERRUPT ANOTHER TASK
AX = DE20h
BX = segment of handle of task to interupt
DX:CX -> FAR interrupt routine
Return: nothing
Notes: unlike "PGMINT" (AX=1021h), DISPATCHINT may be applied to the task
making the DISPATCHINT call
multiple "DISPATCHINT" calls are processed in the order in which they
were executed
the FAR routine is entered with the current ES, DS, SI, DI, and BP
values, using the task's internal stack (see AX=101Ah); only SS:SP
needs to be preserved
this API call may be made from within a hardware interrupt handler
SeeAlso: AX=1021h
----------15DE21BX0000-----------------------
INT 15 - DESQview 2.26+ - "ASSERTVIR" - CONTROL 386 SCREEN VIRTUALIZATION
AX = DE21h
BX = 0000h turn off
nonzero turn on
Return: BX = old state of virtualization
Note: this API call may be made from within a hardware interrupt handler
----------15DE22-----------------------------
INT 15 - DESQview 2.26+ - "PROCESSMEM" - GET TASK MEMORY STATUS
AX = DE22h
DX = segment of task handle
Return: DX = total amount of memory in paragraphs
BX = amount of system memory in paragraphs
CX = largest block of system memory available in paragraphs
AX = flags
bit 0: system memory resides in shared memory
1: process's memory is swapped out
2: process's system memory is swapped out
Notes: if the task handle is a child task, the returned values will be for the
process containing the task, rather than the task itself
if the process's system memory is swapped out, BX,CX,DX remain
unchanged, because the memory usage cannot be determined
SeeAlso: AX=DE04h,AX=DE05h,AX=DE06h
----------15DE23-----------------------------
INT 15 - DESQview 2.31+ - ???
AX = DE23h
BX = ???
CX = ???
Return: ???
----------15E00F-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR DISPATCH
AX = E00Fh
ES:BX -> start of 2nd processor's execution
Return: AL = 0Fh successful
= 00h failure
SeeAlso: AX=E10Eh,AX=E200h
----------15E10E-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR END-OF-DISPATCH
AX = E10Eh
ES:BX -> start of 2nd processor's execution
Return: AL = 0Fh successful (halted)
= 00h failure (not halted)
SeeAlso: AX=E00Fh,AX=E200h
----------15E200-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR AVAILABLE
AX = E200h
Return: AX = 8000h if 2nd processor available
SeeAlso: AX=E00Fh,AX=E10Eh
----------1600-------------------------------
INT 16 - KEYBOARD - GET KEYSTROKE
AH = 00h
Return: AH = scan code
AL = ASCII character
Note: on extended keyboards, this function discards any extended keystrokes,
returning only when a non-extended keystroke is available
SeeAlso: AH=01h,AH=05h,AH=10h
----------1601-------------------------------
INT 16 - KEYBOARD - CHECK FOR KEYSTROKE
AH = 01h
Return: ZF set if no keystroke available
ZF clear if keystroke available
AH = scan code
AL = ASCII character
Note: if a keystroke is present, it is not removed from the keyboard buffer;
however, any extended keystrokes which are not compatible with 83/84-
key keyboards are removed in the process of checking whether a
non-extended keystroke is available
SeeAlso: AH=00h,AH=11h
----------1602-------------------------------
INT 16 - KEYBOARD - GET SHIFT FLAGS
AH = 02h
Return: AL = shift flags
bit 7: Insert active
6: CapsLock active
5: NumLock active
4: ScrollLock active
3: Alt key pressed (either Alt on 101/102-key keyboards)
2: Ctrl key pressed (either Ctrl on 101/102-key keyboards)
1: left shift key pressed
0: right shift key pressed
SeeAlso: AH=12h
----------1603-------------------------------
INT 16 - KEYBOARD - SET TYPEMATIC RATE AND DELAY
AH = 03h
AL = subfunction
00h (PCjr) set default delay and rate
01h (PCjr) increase delay before repeat
02h (PCjr) decrease repeat rate by factor of 2
03h (PCjr) increase delay and decrease repeat rate
04h (PCjr) turn off typematic repeat
05h (AT,PS) set repeat rate and delay
BH = delay value (00h = 250ms to 03h = 1000ms)
BL = repeat rate (00h=30/sec to 0Ch=10/sec [def] to 1Fh=2/sec)
----------1604-------------------------------
INT 16 - KEYBOARD - SET KEYCLICK (PCjr only)
AH = 04h
AL = keyclick state
00h off
01h on
SeeAlso: AH=03h
----------1605-------------------------------
INT 16 - KEYBOARD - STORE KEYSTROKE IN KEYBOARD BUFFER (AT/PS w enh keybd only)
AH = 05h
CH = scan code
CL = ASCII character
Return: AL = 00h if successful
01h if keyboard buffer full
Note: under DESQview, the following "keystrokes" invoke the following actions
when they are read from the keyboard buffer:
38FCh pop up DESQview main menu
38FEh close the current window
38FFh pop up DESQview learn menu
SeeAlso: AH=00h,AH=71h,INT 15/AX=DE10h
----------1610-------------------------------
INT 16 - KEYBOARD - GET ENHANCED KEYSTROKE (enhanced kbd support only)
AH = 10h
Return: AH = scan code
AL = ASCII character
Notes: if no keystroke is available, this function waits until one is placed
in the keyboard buffer
unlike AH=00h, this function does not discard extended keystrokes
SeeAlso: AH=00h,AH=11h
----------1611-------------------------------
INT 16 - KEYBOARD - CHECK FOR ENHANCED KEYSTROKE (enh kbd support only)
AH = 11h
Return: ZF set if no keystroke available
ZF clear if keystroke available
AH = scan code
AL = ASCII character
Notes: if a keystroke is available, it is not removed from the keyboard buffer
unlike AH=01h, this function does not discard extended keystrokes
SeeAlso: AH=01h,AH=10h
----------1612-------------------------------
INT 16 - KEYBOARD - GET EXTENDED SHIFT STATES (enh kbd support only)
AH = 12h
Return: AL = shift flags 1 (same as returned by AH=02h)
bit 7: Insert active
6: CapsLock active
5: NumLock active
4: ScrollLock active
3: Alt key pressed (either Alt on 101/102-key keyboards)
2: Ctrl key pressed (either Ctrl on 101/102-key keyboards)
1: left shift key pressed
0: right shift key pressed
AH = shift flags 2
bit 7: SysRq key pressed
6: CapsLock pressed
5: NumLock pressed
4: ScrollLock pressed
3: right Alt key pressed
2: right Ctrl key pressed
1: left Alt key pressed
0: left Ctrl key pressed
Notes: AL bit 3 set only for left Alt key on many machines
AH bits 7 through 4 always clear on a Compaq SLT/286
SeeAlso: AH=02h
----------164500-----------------------------
INT 16 - Shamrock Software EMAIL - GET STATUS
AX = 4500h
DL = port number (01h = COM1)
ES:BX -> 13-byte buffer for ASCIZ name
Return: AX = 4D00h if EMAIL installed on specified port
ES:BX -> "" if no connection
-> "*" if connection but caller has not identified name
-> name otherwise
CX = version (CH = major, CL = minor)
DL = privilege level of user (00h = guest)
DH = chosen language (00h German, 01h English)
SeeAlso: AX=4501h,AX=4502h
----------164501-----------------------------
INT 16 - Shamrock Software EMAIL - GET ELAPSED ONLINE TIME AND MAXIMUM TIME
AX = 4501h
DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
BX = maximum connect time in clock ticks
CX = maximum connect time for guests (without name) in clock ticks
DX = elapsed connect time of current user in clock ticks
SeeAlso: AX=4500h
----------164502-----------------------------
INT 16 - Shamrock Software EMAIL - GET CURRENT COMMUNICATIONS PARAMETERS
AX = 4502h
DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
BL = current value of serial port's Line Control Register
BH = flags
bit 0: ISO code
1: pause
2: linefeed
3: ANSI sequences
CX = selected country code (33 = France, 49 = Germany, etc)
DX = baudrate divisor (115200/DX = baudrate)
SeeAlso: AX=4500h
----------164503-----------------------------
INT 16 - Shamrock Software EMAIL - SPECIFY COMMAND-WORD FOR USER FUNCTION
AX = 4503h
DL = port number (01h = COM1)
DH = maximum execution time in clock ticks (00h = 5 seconds)
ES:BX -> ASCIZ string with new user command-word
Return: AX = 4D00h if EMAIL installed on specified port
Notes: a single user command (consisting of only uppercase letters and digits)
may be defined, and remains valid until it is overwritten or the
EMAIL program terminates; the user command must be activated by
calling AX=4504h at least once.
an existing command word may be redefined with this function
SeeAlso: AX=4504h,AX=4505h
----------164504-----------------------------
INT 16 - Shamrock Software EMAIL - CHECK FOR USER FUNCTION COMMAND-WORD
AX = 4504h
DL = port number (01h = COM1)
ES:BX -> 80-byte buffer for ASCIZ user input line
Return: AX = 4D00h if EMAIL installed on specified port
DL = flags
bit 0: user function supported (always set)
1: user entered user-function command word
if DL bit 1 set,
ES:BX buffer contains line entered by user which begins with
the defined command word and has been converted to all
caps
Note: caller must process the returned commandline and invoke AX=4505h
within five seconds with the result of that processing
SeeAlso: AX=4503h,AX=4505h
----------164505-----------------------------
INT 16 - Shamrock Software EMAIL - SEND RESULT OF USER FUNCTION
AX = 4505h
DL = port number (01h = COM1)
DH = error flag
bit 3: set on error
ES:BX -> ASCIZ text to return to user, max 1024 bytes
Return: AH = 4Dh if EMAIL installed on specified port
AL = status
00h successful
02h unable to perform function (timeout, prev call not complete)
other error
Notes: if the error flag in DH is set, the string is not sent and an error
message is generated instead; if this function is not called within
five seconds of AX=4504h, EMAIL automatically generates an error
message
the string is copied into an internal buffer, allowing this function's
caller to continue immediately
SeeAlso: AX=4503h,AX=4504h,INT 17/AX=2400h
----------164506-----------------------------
INT 16 - Shamrock Software EMAIL - MONITOR XMODEM DOWNLOAD
AX = 4506h
DL = port number (01h = COM1)
ES:BX -> 13-byte buffer for ASCIZ filename
Return: AX = 4D00h if EMAIL installed on specified port
DH = Xmodem status
00h no XGET command given
01h XGET in progress
02h XGET completed successfully
ES:BX buffer filled with last filename given to XGET command
(without path)
Note: DH=02h will only be returned once per XGET; subsequent calls will
return DH=00h
SeeAlso: AX=4500h,INT 17/AX=2408h
----------165500-----------------------------
INT 16 - Microsoft Word internal - MICROSOFT WORD COOPERATION WITH TSR
AX = 5500h
Return: AX = 4D53h if keyboard TSR present
Notes: during startup, Microsoft Word tries to communicate with any TSRs
that are present through this call.
If the return is not 4D53h, Word installs its own INT 9h and INT 16h
handlers, otherwise it assumes that the TSR will handle the keyboard.
----------166969BX6968-----------------------
INT 16 - PC Tools v5.1+ BACKTALK - UNHOOK
AX = 6969h
BX = 6968h
Return: resident code unhooked, but not removed from memory
----------166969BX6969-----------------------
INT 16 - PC Tools v5.1+ BACKTALK - INSTALLATION CHECK
AX = 6969h
BX = 6969h
DX = 0000h
Return: DX nonzero if installed
BX = CS of resident code
DX = PSP segment of resident code
DS:SI -> ASCIZ identification string "CPoint Talk"
----------166F-------------------------------
INT 16 - MS Windows - ???
AH = 6Fh
???
Return: ???
----------166F00BX0000-----------------------
INT 16 - MS Windows - ???
AX = 6F00h
BX = 0000h
???
Return: BX = 4850h if ???
Note: called by recent MS Mouse drivers
----------1670-------------------------------
INT 16 - FAKEY.COM - INSTALLATION CHECK
AH = 70h
Return: AX = 1954h if installed
Note: FAKEY is a keystroke faking utility by System Enhancement Associates
----------1671-------------------------------
INT 16 - FAKEY.COM - PUSH KEYSTROKES
AH = 71h
CX = number of keystrokes
DS:SI -> array of words containing keystrokes to be returned by AH=00h
Note: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: AH=05h,AH=72h
----------1672-------------------------------
INT 16 - FAKEY.COM - CLEAR FAKED KEYSTROKES
AH = 72h
Note: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: AH=71h
----------1673-------------------------------
INT 16 - FAKEY.COM - PLAY TONES
AH = 73h
CX = number of tones to play
DS:SI -> array of tones (see below)
Note: FAKEY is a keystroke faking utility by System Enhancement Associates
SeeAlso: INT 15/AX=1019h
Format of tone array entries:
Offset Size Description
00h WORD divisor for timer channel 2
02h WORD duration in clock ticks
----------1675-------------------------------
INT 16 - pcANYWHERE III - SET TICK COUNT FOR SCANNING
AH = 75h
AL = number of ticks between checks for new screen changes
----------1676-------------------------------
INT 16 - pcANYWHERE III - SET ERROR CHECKING TYPE
AH = 76h
AL = error checking type
00h none
01h fast
02h slow
----------1677-------------------------------
INT 16 - pcANYWHERE III - LOG OFF
AH = 77h
AL = mode
00h wait for another call
01h leave in Memory Resident Mode
02h leave in Automatic Mode
FFh leave in current operating mode
----------167761-----------------------------
INT 16 - WATCH.COM - INSTALLATION CHECK
AX = 7761h ('wa')
Return: AX = 5741h ('WA') if installed
Note: WATCH.COM is part of the "TSR" package by Kim Kokkonen
----------167788BX7789-----------------------
INT 16 - PC Magazine PUSHDIR.COM - INSTALLATION CHECK
AX = 7788h
BX = 7789h
Return: AX = 7789h
BX = 7788h
DS:SI -> signature string
----------1679-------------------------------
INT 16 - pcANYWHERE III - CHECK STATUS
AH = 79h
Return: AX = status
FFFFh if resident and active
FFFEh if resident but not active
FFFDh if in Memory Resident mode
FFFCh if in Automatic mode
other value if not resident
SeeAlso: AX=7B00h,INT 21/AX=2B44h
----------167A-------------------------------
INT 16 - pcANYWHERE III - CANCEL SESSION
AH = 7Ah
----------167B00-----------------------------
INT 16 - pcANYWHERE III - SUSPEND
AX = 7B00h
SeeAlso: AH=79h,AX=7B01h
----------167B01-----------------------------
INT 16 - pcANYWHERE III - RESUME
AX = 7B01h
SeeAlso: AH=79h,AX=7B00h
----------167C-------------------------------
INT 16 - pcANYWHERE III - GET PORT CONFIGURATION
AH = 7Ch
Return: AH = port number
AL = baud rate
00h = 50 baud
01h = 75 baud
02h = 110 baud
03h = 134.5 baud
04h = 150 baud
05h = 300 baud
06h = 600 baud
07h = 1200 baud
08h = 1800 baud
09h = 2000 baud
0Ah = 2400 baud
0Bh = 4800 baud
0Ch = 7200 baud
0Dh = 9600 baud
0Eh = 19200 baud
----------167D-------------------------------
INT 16 - pcANYWHERE III - GET/SET TERMINAL PARAMETERS
AH = 7Dh
AL = subfunction
00h set terminal parameters
01h get terminal parameters
02h get configuration header and terminal parameters
DS:CX -> terminal parameter block
----------167E-------------------------------
INT 16 - pcANYWHERE III - COMMUNICATIONS I/O THROUGH PORT
AH = 7Eh
AL = subfunction
01h port input status
Return AX = 0 if no characer ready,
AX = 1 if character ready
02h port input character
Return AL = received character
03h port output character in CX
11h hang up phone
----------167F-------------------------------
INT 16 - pcANYWHERE III - SET KEYBOARD/SCREEN MODE
AH = 7Fh
AL = subfunction
00h enable remote keyboard only
01h enable host keyboard only
02h enable both keyboards
08h display top 24 lines
09h display bottom 24 lines
10h Hayes modem
11h other modem
12h direct connect
----------1680-------------------------------
INT 16 - MAKEY.COM - INSTALLATION CHECK
AH = 80h
Return: AX = 1954h if installed
Note: MAKEY is a utility by System Enhancement Associates
----------16AA-------------------------------
INT 16 - PTxxx.COM - (xxx=CGA,EGA,VGA,HER...) CALL GATE FOR GRAPHICS
AH = AAh
Various registers set up by high level language.
Return: Graphics performed
Note: PT stands for Paint Tools which is a graphics library for Turbo Pascal,
Modula 2 and others from DataBiten in Sweden. The library is
installed as a memory resident driver.
----------16E0E0-----------------------------
INT 16 - TurboPower TSRs - ALTERNATE INSTALLATION CHECK
AX = E0E0h
Return: AX = 1F1Fh if installed
DWORD 0040h:00F0h -> last data block in TSR list (see AX=F0F0h)
Note: the returned TSR list provides support for communication among TSRs
built with TurboPower's Turbo Professional and Object Professional
libraries for Turbo Pascal
SeeAlso: AX=F0F0h
----------16F0-------------------------------
INT 16 - Compaq 386 - SET CPU SPEED
AH = F0h
AL = speed
00h equivalent to 6 MHz 80286 (COMMON)
01h equivalent to 8 MHz 80286 (FAST)
02h full 16 MHz (HIGH)
03h toggles between 8 MHz-equivalent and speed set by system board
switch (AUTO or HIGH)
08h full 16 MHz except 8 MHz-equivalent during floppy disk access
09h specify speed directly
CX = speed value, 1 (slowest) to 50 (full), 3 ~= 8088
SeeAlso: AH=F1h,AH=F3h
----------16F0F0-----------------------------
INT 16 - TurboPower TSRs - INSTALLATION CHECK
AX = F0F0h
Return: AX = 0F0Fh if installed
ES:DI -> last data block in TSR list
Note: the returned TSR list provides support for communication among TSRs
built with TurboPower's Turbo Professional and Object Professional
libraries for Turbo Pascal
SeeAlso: AX=E0E0h
Format of data block:
Offset Size Description
00h DWORD pointer to program tag (counted ASCII string)
04h WORD interface version number (0400h)
06h DWORD pointer to command entry point
0Ah DWORD pointer to previous data block (0000h:0000h if none)
0Eh DWORD pointer to next data block (0000h:0000h if none)
---swappable TSRs only---
12h DWORD pointer to swapping data
16h DWORD pointer to user data
more???
----------16F1-------------------------------
INT 16 - Compaq 386 - READ CURRENT CPU SPEED
AH = F1h
Return: AL = speed code (see AH=F0h)
if AL = 09h, CX = speed code
SeeAlso: AH=F0h,AH=F3h
----------16F2-------------------------------
INT 16 - Compaq 386 - DETERMINE ATTACHED KEYBOARD TYPE
AH = F2h
Return: AL = type
00h if 11-bit AT keyboard is in use
01h if 9-bit PC keyboard is in use
----------16F3-------------------------------
INT 16 - Compaq 80286s - SET CPU SPEED LIMIT (OVERRIDE JUMPER)
AH = F3h
AL = 00h limit is 6 Mhz
= 01h limit is 8 Mhz/6 Mhz
SeeAlso: AH=F0h,AH=F1h
----------16F400-----------------------------
INT 16 - Compaq Systempro - CACHE CONTROLLER STATUS
AX = F400h
Return: AH = E2h
AL = status
00h not present
01h enabled
02h disabled
SeeAlso: AX=F401h,AX=F402h
----------16F401-----------------------------
INT 16 - Compaq Systempro - ENABLE CACHE CONTROLLER
AX = F401h
Return: AX = E201h
SeeAlso: AX=F400h,AX=F402h
----------16F402-----------------------------
INT 16 - Compaq Systempro - DISABLE CACHE CONTROLLER
AX = F402h
Return: AX = E202h
SeeAlso: AX=F400h,AX=F401h
----------16FFA5CX1111-----------------------
INT 16 - PC-Cache v6+ - INSTALLATION CHECK
AX = FFA5h
CX = 1111h
Return: CH = 00h if installed
ES:DI -> internal data (see below)
CL = cache state
01h enabled
02h disabled
SeeAlso: INT 13/AH=A0h,INT 21/AH=2Bh/CX=4358h
Format of internal data:
Offset Size Description
-1Ch 20 BYTEs cached drive list, one byte per drive A: to T:
each byte is either blank (20h) or drive letter (41h-54h)
-8 BYTE ???
-7 WORD number of physical transfers (scaled down to 0000h-7FFFh)
-5 WORD number of saved transfers (scaled down to 0000h-7FFFh)
-3 3 BYTEs ???
----------16FFA5CXAAAA-----------------------
INT 16 - PC-Cache v6+ - ENABLE DELAYED WRITES
AX = FFA5h
CX = AAAAh
Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5)
SeeAlso: AX=FFA5h/CX=CCCCh
----------16FFA5CXCCCC-----------------------
INT 16 - PC-Cache v6+ - FLUSH CACHE AND DISABLE DELAYED WRITES
AX = FFA5h
CX = CCCCh
Return: AX = ??? (apparently either 0000h or sectors_in_cache - 5)
Note: delayed writes are automatically disabled on EXECing
(see INT 21/AH=4Bh) a program named either WIN.CO? or DV.E??;
however, delayed writes are not automatically reenabled upon the
program's termination in v6.
SeeAlso: AX=FFA5h/CX=AAAAh,AX=FFA5h/CX=FFFFh
----------16FFA5CXDDDD-----------------------
INT 16 - PC-Cache v6+ - FLUSH AND DISABLE CACHE
AX = FFA5h
CX = DDDDh
SeeAlso: AX=FFA5h/CX=EEEEh,AX=FFA5h/CX=FFFFh
----------16FFA5CXEEEE-----------------------
INT 16 - PC-Cache v6+ - ENABLE CACHE
AX = FFA5h
CX = EEEEh
SeeAlso: AX=FFA5h/CX=DDDDh
----------16FFA5CXFFFF-----------------------
INT 16 - PC-Cache v6+ - FLUSH CACHE
AX = FFA5h
CX = FFFFh
SeeAlso: AX=FFA5h/CX=CCCCh,AX=FFA5h/CX=DDDDh,INT 13/AH=A1h
----------16FFA6-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - GET ???
AX = FFA6h
Return: DS:SI -> ???
----------16FFA7-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - GET ??? PATH
AX = FFA7h
Return: DS:SI -> ASCIZ path (directory from which PCTools was run???)
----------16FFA8-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - ???
AX = FFA8h
DS:SI -> three consecutive ASCIZ strings for ??? (max 256 bytes total)
???
Return: ???
Notes: available only when popped up
strings copied into internal buffer, among other actions
----------16FFA9-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - GET ???
AX = FFA9h
Return: DS:SI -> version string???
----------16FFAA-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - ???
AX = FFAAh
???
Return: ???
Note: available only when popped up
----------16FFAB-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - GET EDITOR SETTINGS???
AX = FFABh
Return: DS:SI -> editor setting strings???
----------16FFAC-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - SET ???
AX = FFACh
DL = ???
Note: available only when popped up
----------16FFAD-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - SET ???
AX = FFADh
DL = ???
----------16FFAE-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - GET ???
AX = FFAEh
Return: AL = ???
----------16FFAF-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - SET ???
AX = FFAFh
DL = ???
----------16FFB0-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - SET ???
AX = FFB0h
BL = ???
----------16FFB1-----------------------------
INT 16 - PC Tools v6.0 DESKTOP API - ???
AX = FFB1h
???
Return: ???
----------16FFB2-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - GET ???
AX = FFB2h
Return: DS:SI -> ???
----------16FFB3-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - ???
AX = FFB3h
???
Return: ???
Note: available only when popped up
----------16FFB4-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - SET ??? FLAG
AX = FFB4h
Note: available only when popped up
SeeAlso: AX=FFBBh
----------16FFB5-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - GET/SET WINDOW PARAMETERS
AX = FFB5h
BX = window specifier (000Fh to 0019h) (see below)
DX = 0000h get, nonzero = set
ES:DI -> window parameter buffer (see below)
SeeAlso: AX=FFCBh
Values for window specifier:
000Fh comm/FAX
0014h hotkey selection
0015h ASCII table
0016h system colors menu
Format of window parameters:
Offset Size Description
00h BYTE rows in window, not counting frame
01h BYTE columns in window, not counting frame
02h BYTE row number of top of window
03h BYTE 2*column number of left of window
04h BYTE character attribute for ???
05h BYTE character attribute for background/border
06h BYTE character attribute for ???
07h DWORD pointer to ??? on screen
0Bh 4 BYTEs ???
0Fh BYTE nonzero if window may be resized
Note: if running in monochrome mode, character attributes at offsets 04h to
06h are stored unchanged, but attributes other than 07h, 0Fh, or 70h
are changed to 07h on reading
----------16FFB6-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - GET ???
AX = FFB6h
Return: AH = ???
AL = ???
----------16FFB7-----------------------------
INT 16 - PC Tools v5.5+ DESKTOP API - GET/SET ???
AX = FFB7h
BX = direction
0000h copy to buffer
else copy from buffer
DS:SI -> 70-byte buffer with ???
Return: data copied
Note: available only when popped up under v6.0+
----------16FFB8-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET/SET???
AX = FFB8h
BH = subfunction
00h get
Return: BL = old value of ???
CL = old value of ??? (v6.0+)
CH = old value of ??? (v6.0+)
nonzero set
BL = new value for ???
CL = new value for ??? (v6.0+)
CH = new value for ??? (v6.0+)
DH = ???
Return: AL = old value replaced by CL (v6.0+)
AH = old value replaced by CH (v6.0+)
----------16FFB9-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFB9h
???
Return: AX = ???
CX = ???
DS:SI -> ???
ES:DI -> ???
----------16FFBA-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFBAh
???
Return: AX = ???
Note: available only when popped up
----------16FFBB-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - CLEAR ??? FLAG
AX = FFBBh
Note: available only when popped up
SeeAlso: AX=FFB4h
----------16FFBC-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - RESTORE ORIGINAL SCREEN???
AX = FFBCh
----------16FFBD-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ??? DATABASE INDEXING MESSAGES
AX = FFBDh
???
Return: ???
----------16FFBE-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFBEh
???
Return: ???
Note: available only when popped up
----------16FFBF-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFBFh
BX = DOS file handle to write on
???
Return: ???
Note: available only when popped up
----------16FFC0-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFC0h
???
Return: AX = 0000h if successful
AX = FFFFh on error
Note: available only when popped up
----------16FFC1-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFC1h
BL = ???
ES:DI -> data structure (see below)
???
Return: AX = ???
Note: available only when popped up
Format of data structure:
Offset Size Description
00h WORD ???
02h WORD ???
04h WORD ???
06h WORD ???
08h WORD ???
0Ah BYTE ???
0Bh BYTE ???
???
----------16FFC2-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFC2h
???
Return: AH = ???
CX = ???
DH = ???
DL = ???
Note: available only when popped up
SeeAlso: AX=FFC3h
----------16FFC3-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFC3h
???
Return: AH = ???
CX = ???
DH = ???
DL = ???
Note: available only when popped up
SeeAlso: AX=FFC2h
----------16FFC4-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET ???
AX = FFC4h
Return: AL = ???
BX = segment of scratch space???
CX = segment of stored screen data (section covered by window???)
DX = segment of window parameters for ???
ES:BP -> ???
Note: available only when popped up in versions prior to 6.0
----------16FFC5-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - CHECK WHETHER DESKTOP LOADED RESIDENT
AX = FFC5h
Return: BL = nonzero if loaded resident
= 00h if nonresident
Note: available only when popped up
SeeAlso: AX=FFEFh,AX=FFF3h
----------16FFC6-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SET ???
AX = FFC6h
BL = new value for ???
----------16FFC7-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - REMOVE WINDOW
AX = FFC7h
???
Return: ???
----------16FFC8-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET ???
AX = FFC8h
Return: DS:SI -> ???
Note: valid only while popped up
----------16FFC9-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - COPY DATA TO CLIPBOARD
AX = FFC9h
DS:SI -> characters to store in clipboard
CX = size in bytes
Return: CF set on error
Notes: available only when popped up
while copying, bytes of 00h and 0Ah are skipped
----------16FFCA-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SET ???
AX = FFCAh
DX = ???
Return: AX destroyed
Note: available only when popped up
----------16FFCB-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SELECT WINDOW PARAMETERS???
AX = FFCBh
DX = window specifier???
Return: AX destroyed
Note: available only when popped up
SeeAlso: AX=FFB5h
----------16FFCC-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY ASCIZ STRING CENTERED IN WINDOW
AX = FFCCh
DS:SI -> ASCIZ string
Return: AX = ???
CX = ???
ES:DI -> address past last character displayed (v5.1/5.5)
-> ??? on menu bar
----------16FFCD-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFCDh
DS:DX -> ???
Return: ???
Note: available only when popped up
----------16FFCE-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SET ??? DELAYS
AX = FFCEh
CX = ???
Return: nothing???
----------16FFCF-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - CLOSE PRINTER/PRINT FILE
AX = FFCFh
Note: available only when popped up
----------16FFD0-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - PREPARE TO PRINT???
AX = FFD0h
???
Return: ???
Note: available only when popped up
----------16FFD1-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY PRINT OPTIONS MENU
AX = FFD1h
Return: BX = number of copies
DX = destination
00h cancel
01h LPT1
02h LPT2
03h LPT3
04h COM1
05h COM2
06h disk file
Note: available only when popped up
----------16FFD2-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFD2h
BX = ???
Return: BL = ???
Note: available only when popped up
----------16FFD3-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFD3h
DS:SI -> 92-byte data record for ???
Return: ???
----------16FFD4BH3C-------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - CREATE/OPEN/DELETE FILE
AX = FFD4h
BH = 3Ch create file (with no attributes)
3Dh open file
41h delete file
BL = access mode
00h read only
01h write only
02h read/write
DS:SI -> ASCIZ filename
Return: BX = file handle
0000h on error
Note: operation is attempted in (in order) the directory from which the
desktop was started/run???, the directory specified with the
filename, X:\PCTOOLS\, and X:\
----------16FFD5-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFD5h
???
Return: ???
Note: available only when popped up
----------16FFD6-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFD6h
BX = ???
CX = ???
DX = offset in ???
???
Return: ???
Note: available only when popped up
----------16FFD7-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFD7h
???
Return: BL = ???
Note: available only when popped up
----------16FFD8-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SAFE CREATE FILE
AX = FFD8h
DS:BX -> ASCIZ filename
Return: BX = file handle
0000h on error
Note: pops up confirmation menu if file already exists
only available when popped up???
----------16FFD9-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET ???
AX = FFD9h
Return: AX = ???
Note: available only when popped up
----------16FFDA-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET NAME OF LAST FILE OPENED
AX = FFDAh
DS:SI -> ??? (v5.1/5.5 only)
Return: DS:SI -> filename
----------16FFDB-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SET ???
AX = FFDBh
BL = ???
Note: available only when popped up
----------16FFDC-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - UNHOOK
AX = FFDCh
Return: interrupt vectors 09h, 10h (v6.0+), 16h, 1Ch, and 21h restored to
original values
----------16FFDDBX0000-----------------------
INT 16 - PC Tools v5.1+ PCShell API - INSTALLATION CHECK
AX = FFDDh
BX = 0000h
Return: CX = 5555h
DX = 5555h if PCShell installed in resident mode
----------16FFDDBX0001-----------------------
INT 16 - PC Tools v5.1+ PCShell API - REQUEST POP-UP
AX = FFDDh
BX = 0001h
SeeAlso: AX=FFDDh/BX=0003h
----------16FFDDBX0002-----------------------
INT 16 - PC Tools v5.1-5.5 PCShell API - GET ???
AX = FFDDh
BX = 0002h
Return: AL =
00h ???
01h ???
Note: PCShell v6.0 displays the error message "Incorrect PCRUN version",
awaits a keystroke, and aborts the current process
----------16FFDDBX0003-----------------------
INT 16 - PC Tools v5.1+ PCShell API - REQUEST POP-UP
AX = FFDDh
BX = 0003h
SeeAlso: AX=FFDDh/BX=0001h
----------16FFDDBX0004-----------------------
INT 16 - PC Tools v5.1+ PCShell API - GET ???
AX = FFDDh
BX = 0004h
Return: CF clear if successful
DS:SI -> ???
----------16FFDDBX0005-----------------------
INT 16 - PC Tools v5.1+ PCShell API - ???
AX = FFDDh
BX = 0005h
???
Return: ???
----------16FFDDBX0006-----------------------
INT 16 - PC Tools v5.1+ PCShell API - ???
AX = FFDDh
BX = 0006h
???
Return: ???
----------16FFDDBX0007-----------------------
INT 16 - PC Tools v5.1+ PCShell API - SET ??? FLAG
AX = FFDDh
BX = 0007h
Return: CF clear if successful
SeeAlso: AX=FFDDh/BX=0008h
----------16FFDDBX0008-----------------------
INT 16 - PC Tools v5.1+ PCShell API - CLEAR ??? FLAG
AX = FFDDh
BX = 0008h
Return: ???
SeeAlso: AX=FFDDh/BX=0007h
----------16FFDDBX0009-----------------------
INT 16 - PC Tools v6.0 PCShell API - GET PCRUN PARAMETERS
AX = FFDDh
BX = 0009h
Return: CF clear if successful
DS:SI -> list of pointers (see below)
Format of returned pointer list:
Offset Size Description
00h WORD offset of WORD containing ???
02h WORD offset of name of program to execute
04h WORD offset of 80-byte buffer for ???
06h WORD offset of buffer for ??? (length in WORD preceding buffer)
08h WORD offset of buffer for ??? (length in WORD preceding buffer)
----------16FFDDBX000A-----------------------
INT 16 - PC Tools v6.0 PCRUN API - INSTALLATION CHECK
AX = FFDDh
BX = 000Ah
Return: CX = 5555h if running
DX = 5555h
Note: also sets a flag
----------16FFDDBX000B-----------------------
INT 16 - PC Tools v6.0 PCRUN API - ???
AX = FFDDh
BX = 000Bh
???
Return: CX = 5555h if PCRUN active
DX = 5555h
Note: also clears flag set by AX=FFDDh/BX=000Ah
----------16FFDE-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY POPUP MENU
AX = FFDEh
DS:DX -> menu description (must be on a paragraph boundary)
Return: AX = ???
AL seems to be the number of the selected button
Note: available only when popped up
----------16FFDF-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFDFh
???
Return: ???
----------16FFE0-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFE0h
CX = ???
DX = ???
Note: available only when popped up
----------16FFE1-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - BEEP
AX = FFE1h
----------16FFE2-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFE2h
DX = ???
Return: ???
Note: available only when popped up
----------16FFE3-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - PRINT CHARACTER
AX = FFE3h
BL = character to print to currently open printer or print file
Return: CF set on error
Note: available only when popped up
----------16FFE4-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFE4h
DX = segment of ???
Return: ???
Note: available only when popped up
----------16FFE5-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - POP UP FILE SELECTION MENU
AX = FFE5h
DS:SI -> ASCIZ wildcard filespec followed by ASCIZ menu title
DX = segment of window parameters???
Return: AX = DOS file handle for file
DS:DX -> filename???
= FFFFh if cancelled by user
Note: available only when popped up
SeeAlso: AX=FFDAh
----------16FFE6-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - CHECK FOR AND GET KEYSTROKE
AX = FFE6h
Return: AX = 0000h if no key available
else BIOS keycode
Notes: available only when popped up
invokes INT 28 idle interrupt before checking for key
----------16FFE7-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFE7h
BX = segment of ???
Return: ???
Note: available only when popped up
----------16FFE8-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY NUMBER
AX = FFE8h
CX = number
DH = attribute
DS:SI -> destination for ASCII number
Return: DS:SI buffer filled in with alternating characters and attributes
----------16FFE9-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET FILE LIST???
AX = FFE9h
Return: BX = segment of file/directory list (14 bytes per file, NUL-padded)
Note: available only when popped up
----------16FFEA-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY COUNTED STRING
AX = FFEAh
DS:SI -> counted string (count byte followed by string)
Return: ???
Note: available only when popped up
----------16FFEB-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFEBh
???
Return: ???
----------16FFEC-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET KEY
AX = FFECh
DS:SI -> FAR routine to ???
BX = ???
???
Return: AX = keystroke
FFFFh if F10 pressed to go to menu
Notes: available only when popped up
invokes INT 28 while waiting for keystroke
F10 is hotkey to Desktop menu
----------16FFED-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET ???
AX = FFEDh
Return: AX = ???
Note: available only when popped up
----------16FFEE-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DEFINE PULLDOWN MENUS
AX = FFEEh
DS:SI -> pulldown menu system description (see below)
Return: AX destroyed
Notes: available only when popped up
if the accessory does not need any menu items of its own, it should
call AX=FFFAh instead
SeeAlso: AX=FFF7h,AX=FFFAh
Format of pulldown menu system description:
Offset Size Description
00h WORD offset of menu bar contents (counted string)
02h WORD number of items on menu bar
04h 10 BYTEs scan codes for hotkeying to each of up to ten menu items
0Eh 10 BYTEs which character to highlight in each menu item (01h=first)
18h WORD offset of first menu definition (see below)
1Ah WORD offset of second menu definition
...
Format of menu definition:
Offset Size Description
00h WORD offset of menu contents (see below)
02h WORD number of entries in menu
04h for each entry:
Offset Size Description
00h BYTE scancode of Alt-key to invoke entry
01h BYTE character to highlight (01h=first, etc)
02h WORD offset of FAR routine to handle selection
Format of menu contents:
Offset Size Description
00h BYTE number of lines in menu
01h BYTE width of menu
02h N BYTEs counted strings, one for each line in menu
----------16FFEFCX0000-----------------------
INT 16 - PC Tools v5.1+ DESKTOP API - INSTALLATION CHECK
AX = FFEFh
CX = 0000h
Return: CX = ABCDh if PC Tools DESKTOP.EXE installed
BX = segment of resident portion
AX = ??? (v5.1/5.5 only)
SeeAlso: AX=FFC5h,AX=FFF3h
----------16FFF0-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SET ???
AX = FFF0h
DX = ???
Return: AX destroyed
Note: available only when popped up
----------16FFF1BX0000-----------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ALTERNATE INSTALLATION CHECK
AX = FFF1h
BX = 0000h leave ??? flag as is
nonzero set ??? flag
Return: CX = 5555h if installed
DX = 5555h
----------16FFF2-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DISPLAY HELP LINE
AX = FFF2h
DS:SI -> ASCIZ function key label string (each label preceded by '[')
or help text
Return: AX destroyed
Notes: available only when popped up
if the specified string does not start with '[', it is displayed
centered on the bottom line, else the function key labels are shown
----------16FFF3-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - PREPARE TO UNLOAD RESIDENT DESKTOP
AX = FFF3h
Note: releases any EMS being used; restores video mode, page, and cursor
shape; and restores interrupt vectors
SeeAlso: AX=FFC5h,AX=FFEFh
----------16FFF4-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - ???
AX = FFF4h
???
Return: ???
Note: available only when popped up
SeeAlso: AX=FFF6h
----------16FFF5-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET SCREEN ATTRIBUTE ARRAY
AX = FFF5h
Return: ES:BX -> screen attributes data structure (see below)
AL = ??? (v6.0+)
Format of attribute data structure:
Offset Size Description
-1 BYTE attribute for desktop background
00h BYTE attribute for normal characters on desktop menu
01h BYTE attribute for highlighted characters on desktop menu
02h 5 BYTEs ???
07h BYTE attribute for dialog boxes
08h 15 BYTEs ???
17h BYTE attribute for message boxes
----------16FFF6-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - INVOKE NOTEPAD EDITOR
AX = FFF6h
DS = segment of editor buffer structure (see below)
BX = ???
DX = segment of window parameters structure (see AX=FFB5h)
Return: ???
Note: available only when popped up
SeeAlso: AX=FFF4h
Format of editor buffer structure:
Offset Size Description
00h WORD offset of current cursor position in buffer segment
02h 2 BYTEs ???
04h WORD offset of beginning of file data in buffer segment
06h 10 BYTEs ???
10h N BYTEs ASCIZ name of file being edited
----------16FFF7-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - PROCESS MENU BAR ENTRY???
AX = FFF7h
DS:SI -> ???
???
Return: ???
Notes: available only when popped up
performs input processing on the menu bar set up with AX=FFEEh
SeeAlso: AX=FFEEh,AX=FFFBh
----------16FFF8-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DRAW EMPTY WINDOW
AX = FFF8h
DS:0000h -> window parameters structure (see AX=FFB5h)
DS:BX -> DWORD to store address of ??? on screen
Return: ???
----------16FFF9-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DEFINE SCREEN REFRESH ROUTINE
AX = FFF9h
ES:BX -> FAR routine to redisplay the utility's window
Note: available only when popped up
----------16FFFA-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - DEFINE STANDARD PULLDOWN MENUS
AX = FFFAh
Notes: available only when popped up
adds the "Window" option to the "Desktop" option which is the only one
available when no accessories are active. Unlike AX=FFEEh, no
additional menu items are added between "Desktop" and "Window"
SeeAlso: AX=FFEEh,AX=FFFBh
----------16FFFB-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - PROCESS STANDARD MENU BAR
AX = FFFBh
Return: ???
Notes: available only when popped up
performs input processing on the standard menu bar set up with AX=FFFAh
SeeAlso: AX=FFF7h
----------16FFFC-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - GET HOTKEYS AND KEYBOARD VECTOR
AX = FFFCh
Return: ES:BX -> hotkey table (see below)
DS:DX = original INT 9 vector
Format of hotkey table:
Offset Size Description
00h 2 BYTEs scancode/shift state for desktop hotkey
02h 2 BYTEs scancode/shift state for clipboard paste key
04h 2 BYTEs scancode/shift state for clipboard copy key
06h 2 BYTEs scancode/shift state for screen autodial key
----------16FFFD-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - COPY ???
AX = FFFDh
Return: AX destroyed
Note: copies 4000 bytes from ??? to ??? under certain circumstances
----------16FFFE-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - SHOW MOUSE CURSOR
AX = FFFEh
SeeAlso: AX=FFFFh,INT 33/AX=0001h
----------16FFFF-----------------------------
INT 16 - PC Tools v5.1+ DESKTOP API - HIDE MOUSE CURSOR
AX = FFFFh
SeeAlso: AX=FFFEh,INT 33/AX=0002h
----------17----DX0ABC-----------------------
INT 17 - PRINTER - LPTx v5.x INSTALLATION CHECK
DX = 0ABCh
Return: AX = AAAAh
DX = BAAAh
ES = code segment of resident portion
----------17----DX0B90-----------------------
INT 17 - PRINTER - LPTx v6.x INSTALLATION CHECK
DX = 0B90h
Return: DX = ABBBh
ES = code segment of resident portion
----------17----DX0B91-----------------------
INT 17 - PRINTER - LPTx v7.x INSTALLATION CHECK
DX = 0B91h
Return: DX = ABCBh
ES = code segment of resident portion
----------17----DX0F5F-----------------------
INT 17 - PRINTER - LPTx v4.x INSTALLATION CHECK
DX = 0F5Fh
Return: AX = AAAAh
DX = F555h
ES = code segment of resident portion
----------1700-------------------------------
INT 17 - PRINTER - WRITE CHARACTER
AH = 00h
AL = character to write
DX = printer number (00h-02h)
Return: AH = printer status
bit 7: not busy
6: acknowledge
5: out of paper
4: selected
3: I/O error
2: unused
1: unused
0: timeout
----------1701-------------------------------
INT 17 - PRINTER - INITIALIZE PORT
AH = 01h
DX = printer number (00h-02h)
Return: AH = printer status (see AH=00h)
SeeAlso: AH=02h
----------1702-------------------------------
INT 17 - PRINTER - GET STATUS
AH = 02h
DX = printer number (00h-02h)
Return: AH = printer status (see AH=00h)
SeeAlso: AH=01h
----------1702--DX0000-----------------------
INT 17 - INSET - INSTALLATION CHECK
AH = 02h
DX = 0000h
CX = 07C3h (1987d)
Return: CX = 07C2h (1986d) if installed
Note: INSET is a text/graphics integration program
----------172400-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - ENABLE/DISABLE API FUNCTIONS
AX = 2400h
DL = new state
00h disabled
01h enabled
Return: DL = 24h if installed
DH = minor version number
CX = network address of this machine
AL = status
00h successful
01h timeout
02h header error
03h data error
04h busy
05h invalid parameters
SeeAlso: AX=2403h,INT 16/AX=4500h
----------172401-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, NO HANDSHAKE
AX = 2401h
BL = timeout in clock ticks
Return: AL = status (see AX=2400h)
DX:BX -> receive buffer
SeeAlso: AX=2402h,AX=2404h,AX=2408h
----------172402-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT BLOCK, NO HANDSHAKE
AX = 2402h
transmit buffer filled (see AX=2403h)
Return: AL = status (see AX=2400h)
SeeAlso: AX=2401h,AX=2403h,AX=2404h,AX=2409h
----------172403-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - GET STATUS AND TRANSMISSION BUFFER
AX = 2403h
Return: AL = status (see AX=2400h)
CX = number of characters in receive ring buffer
DX:BX -> transmit buffer
SeeAlso: AX=2400h,AX=2402h
----------172404-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - SEND ACK BLOCK
AX = 2404h
BX = target address
Return: AL = status (see AX=2400h)
SeeAlso: AX=2402h,AX=2405h
----------172405-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - SEND NAK BLOCK
AX = 2405h
BX = target address
Return: AL = status (see AX=2400h)
SeeAlso: AX=2402h,AX=2404h
----------172406-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED RECEIVE
AX = 2406h
Return: AL = status (see AX=2400h)
SeeAlso: AX=2407h,AX=240Ah
----------172407-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE CHARACTER FROM REMOTE
AX = 2407h
Return: AL = status (see also AX=2400h)
06h end of data
DL = received character
SeeAlso: AX=2406h
----------172408-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, WITH HANDSHAKE
AX = 2408h
Return: AL = status (see also AX=2400h)
06h end of data
CX = number of bytes in receive buffer
DX:SI -> receive buffer
SeeAlso: AX=2401h,AX=2405h,AX=2409h
----------172409-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT COMMAND, WITH HANDSHAKE
AX = 2409h
BX = target address
CX = number of data byte
DL = command code to send
DS:SI -> data bytes for command
Return: AL = status (see also AX=2400h)
03h no response
06h remote currently unable to perform command
SeeAlso: AX=2405h,AX=2408h
----------17240A-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - PREPARE CHARACTER-ORIENTED TRANSMIT
AX = 240Ah
Return: AL = status (see AX=2400h)
SeeAlso: AX=2406h,AX=240Bh,AX=240Ch
----------17240B-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - TRANSMIT SINGLE CHARACTER TO REMOTE
AX = 240Bh
DL = character to send
Return: AL = status (see also AX=2400h)
03h transmission error
06h write error
SeeAlso: AX=2407h,AX=240Ah,AX=240Ch
----------17240C-----------------------------
INT 17 - Shamrock Software NET.24 v3.11+ - END CHARACTER-ORIENTED TRANSMIT
AX = 240Ch
Return: AL = status (see also AX=2400h)
03h transmission error
06h remote breaks connection
SeeAlso: AX=240Ah,AX=240Bh
----------1760-------------------------------
INT 17 - FLASHUP.COM - INSTALLATION CHECK
AH = 60h
Return: AL = 60h
DX = CS of resident code
Notes: FLASHUP.COM is part of Flash-Up Windows by The Software Bottling Co.
FLASHUP also hooks INT 10 and received commands via INT 10/AH=09h,0Ah
consisting of an 80h followed by the actual command
SeeAlso: INT 10/AH=09h,INT 10/AH=0Ah
----------1761-------------------------------
INT 17 - SPEEDSCR.COM - INSTALLATION CHECK
AH = 61h
Return: AL = 61h
DX = CS of resident code
Note: SPEEDSCR.COM is by The Software Bottling Co.
----------1781-------------------------------
INT 17 - Alloy NTNX, MW386 - CANCEL JOBS FOR CURRENT USER
AH = 81h
AL = 00h (NTNX compatibility mode)
CL = number of jobs to cancel
Return: AL = status
00h success
01h..7Fh warning
80h general failure
81h host overloaded (NTNX only)
82h module busy (NTNX only)
83h host busy (NTNX only)
84h re-entry flag set
85h invalid request
86h invalid printer
87h invalid process ID
89h access denied
8Ah option not available for given port type
8Bh option not available for given task type
91h printer busy
C2h file not found
C3h path not found
C4h file access failure
Note: cancels the last CL printouts for the current task
SeeAlso: AH=82h
----------1782-------------------------------
INT 17 - Alloy NTNX, MW386 - CANCEL ALL JOBS FOR CURRENT USER
AH = 82h
AL = 00h (NTNX compatibility mode)
Return: AL = status (see AH=81h)
SeeAlso: AH=81h
----------1783-------------------------------
INT 17 - Alloy NTNX, MW386 - SET NUMBER OF COPIES
AH = 83h
AL = mode
00h NTNX compatibility
CL = number of copies (max 99, default 1)
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
CX = number of copies
Return: AL = status (see AH=81h)
Note: in NTNX compatibility mode, this function only affects LPT1
----------1784-------------------------------
INT 17 - Alloy NTNX, MW386 - GENERATE PRINT BREAK
AH = 84h
AL = mode
00h NTNX compatibility
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
Note: closes spool file and tells spooler to queue the print job (LPT1 only
under MW386 in NTNX compatibility mode)
----------1787-------------------------------
INT 17 - Alloy NTNX - SET INDOS POINTER
AH = 87h
AL = 00h
CX:BX -> buffer for user-written printer drivers
Return: BX,CX destroyed
Note: must be executed before the printer is enabled
SeeAlso: AH=8Ah
----------1788-------------------------------
INT 17 - Alloy NTNX, MW386 - REMOVE PRINTER FROM SPOOLER
AH = 88h
AL = mode
00h NTNX compatibility
DX = NTNX printer number
00h host LPT1
01h host LPT2
02h host LPT3
03h host LPT4
04h host COM1
05h host COM2
06h user's logical COM2
07h user's terminal AUX port
08h user's logical COM1 (MW386 only)
01h MW386
DX = MW386 printer number
Return: AH = status (see AH=81h)
Note: removes specified printer from the spooler's list of printers
SeeAlso: AH=89h,AH=8Bh
----------1789-------------------------------
INT 17 - Alloy NTNX, MW386 - ADD PRINTER TO SPOOLER
AH = 89h
AL = mode
00h NTNX compatibility
DX = NTNX printer number (see AH=88h)
01h MW386
DX = MW386 printer number
Return: AL = status (see AH=81h)
Note: the specified printer is added to the spooler's list of available
printers
SeeAlso: AH=88h,AH=8Bh
----------178A-------------------------------
INT 17 - Alloy NTNX - ACTIVATE USER-WRITTEN PRINTER DRIVER
AH = 8Ah
???
SeeAlso: AH=92h
----------178B-------------------------------
INT 17 - Alloy MW386 - GET PHYSICAL DEVICE NUMBER FROM NAME
AH = 8Bh
DS:DX -> ASCIZ printer name
Return: AL = status (see also AH=81h)
00h successful
DX = physical device number
SeeAlso: AH=89h,AH=8Ch,INT 14/AH=20h"Alloy"
----------178C-------------------------------
INT 17 - Alloy MW386 - GET DEVICE NAME FROM PHYSICAL DEVICE NUMBER
AH = 8Ch
DX = physical device number
ES:DI -> 17-byte buffer for ASCIZ device name
Return: AL = status (see also AH=81h)
00h successful
ES:DI buffer filled
SeeAlso: AH=88h,AH=8Bh
----------178D-------------------------------
INT 17 - Alloy NTNX - RESET SPOOLER
AH = 8Dh
AL = 00h
Note: clears all buffers and resets spooler to boot-up values
Return: AL = status (see AH=81h)
----------178E-------------------------------
INT 17 - Alloy NTNX - GET INT 28 ENTRY POINT
AH = 8Eh
AL = 00h
Return: CX:BX -> INT 28 entry point
SeeAlso: AH=8Fh
----------178F-------------------------------
INT 17 - Alloy NTNX - GET DOS INTERCEPT ENTRY POINT
AH = 8Fh
AL = 00h
Return: CX:BX -> DOS intercept routine
SeeAlso: AH=8Eh
----------1790-------------------------------
INT 17 - Alloy NTNX, MW386 - SPOOL FILE BY NAME
AH = 90h
AL = mode
00h NTNX compatibility
DL = printer code (FFh=current) (NTNX, MW386 v1.x only)
DH = number of copies (FFh=current) (NTNX, MW386 v1.x only)
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
CX:SI -> ASCIZ pathname
Return: AL = status (see AH=81h)
Note: in mode 00h, the file is always sent to logical LPT1
SeeAlso: AH=A0h
----------1791-------------------------------
INT 17 - Alloy NTNX, MW386 - GET USER NUMBER AND CURRENT PRINTER
AH = 91h
AL = mode
00h NTNX compatibility
Return: CX = user number (00h = host)
DX = currently selected printer number (00h-08h)
01h MW386
Return: CX = user number
DX = physical dev number of currently selected printer
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
Return: CX = user number
DX = physical device number
Return: AL = status (see AH=81h)
SeeAlso: AH=8Ch
----------1792-------------------------------
INT 17 - Alloy NTNX - CHECK PRINTER DRIVER
AH = 92h
AL = 00h
CL = 00h
Return: CL = driver state
01h initialized
80h not initialized
AX = status (see AH=81h)
SeeAlso: AH=8Ah
----------1794-------------------------------
INT 17 - Alloy NTNX, MW386 - SELECT PRINTER
AH = 94h
AL = mode
00h NTNX compatibility
DX = NTNX printer number (see AH=88h)
01h MW386
DX = MW386 printer number
02h MW386 v2+
BX = logical printer number
DX = MW386 printer number
Return: AL = status (see AH=81h)
Note: modes 00h and 01h affect only logical LPT1
SeeAlso: AH=8Bh,AH=95h
----------1795-------------------------------
INT 17 - Alloy NTNX, MW386 - GET CURRENT PRINTER
AH = 95h
AL = mode
00h NTNX compatibility
Return: DX = NTNX printer number (see AH=88h)
(FFFFh if current printer not compatible with NTNX)
01h MW386
Return: DX = MW386 printer number
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
Return: DX = MW386 printer number (FFFFh = none)
Return: AL = status (see AH=81h)
Note: modes 00h and 01h return the printer number of logical LPT1 only
SeeAlso: AH=94h
----------1796-------------------------------
INT 17 - Alloy NTNX - SET SERIAL PORT PARAMETERS
AH = 96h
AL = 00h
Note: documentation states that this is a NOP, doing only XOR AX,AX before
returning
SeeAlso: INT 14/AH=24h
----------1797-------------------------------
INT 17 - Alloy NTNX, MW386 - SET DATA DRIVEN PRINT BREAK
AH = 97h
AL = mode
00h NTNX compatibility
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
CH,CL,DH = three character break sequence
DL = subfunction
00h set break string
else reset break
Return: AL = status (see AH=81h)
Notes: mode 00h affects only logical LPT1
when the break string is encountered, the spool file will be closed and
queued for printing automatically
the break string is not permanently saved, and will be reset each time
MW386 or the user is rebooted
SeeAlso: AH=9Bh
----------1798-------------------------------
INT 17 - Alloy NTNX - RESTART PRINTER
AH = 98h
AL = 00h
DL = printer number (FFh=current)
Return: AL = status
00h successful
01h incorrect printer
02h task not found
----------1799-------------------------------
INT 17 - Alloy NTNX, MW386 - GET/SET PRINTER MODE
AH = 99h
AL = mode
00h NTNX compatibility
DL = NTNX printer number (see AH=88h)
(FFh = task's current logical LPT1)
DH = mode
bit 0: get mode if 1, set mode if 0
1: private ("attached")
2: direct instead of spooled
3-7 reserved (0)
01h MW386
DX = MW386 printer number
CL = mode (as for DH above)
Return: AL = status (see AH=81h)
DH = mode (bits 1 and 2 set as above)
DL = printer owner's user number if not spooled
----------179A-------------------------------
INT 17 - Alloy MW386 - SET TAB EXPANSION
AH = 9Ah
AL = mode
00h NTNX compatibility
DX = NTNX printer number (see AH=88h)
(FFFFh = current logical LPT1)
01h MW386
DX = MW386 printer number
CL = tab length (00h = no expansion, 01h-63h = spaces per tab)
Return: AL = status (see AH=81h)
Note: beginning with MW386 v2.0, tab expansion is set on a per-printer basis
rather than a per-user basis; NTNX and MW386 v1.x ignore DX
SeeAlso: AH=A4h
----------179B-------------------------------
INT 17 - Alloy MW386 - SET PRINT BREAK TIMEOUT
AH = 9Bh
AL = mode
00h NTNX compatibility
CX = timeout value in clock ticks (1/18 sec) (00h = never)
01h MW386
CX = timeout value in seconds (00h = never)
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
CX = timeout value in seconds (00h = never)
Return: AL = status (see AH=81h)
Notes: modes 00h and 01h affect only the current logical LPT1
if no data is sent to a printer for the specified amount of time, the
spool file will be closed and queued for printing automatically
SeeAlso: AH=97h
----------17A0-------------------------------
INT 17 - Alloy MW386 - SPOOL COPY OF FILE
AH = A0h
AL = mode
00h NTNX compatibility
DX = ??? (NTNX, MW386 v1.x only)
02h MW386 v2+
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
CX:SI -> ASCIZ pathname
Return: AL = status (see AH=81h)
Notes: makes a copy of the specified file in the spooler's directory, allowing
the original file to be modified or deleted while the copy is printed
in mode 00h, the file is printed on logical LPT1
SeeAlso: AH=90h
----------17A4-------------------------------
INT 17 - Alloy MW386 - ENABLE/DISABLE FORM FEED
AH = A4h
AL = new state
00h form feed after end of print job disabled
01h form feed enabled
Return: AL = status (see AH=81h)
Note: only affects the current logical LPT1
SeeAlso: AH=9Ah,AH=A6h,INT 7F/AH=05h"NTNX (Host)"
----------17A6-------------------------------
INT 17 - Alloy MW386 - ENABLE/DISABLE BANNER PAGE
AH = A6h
AL = new state
00h banner page before print job disabled
01h banner page enabled
Return: AL = status (see AH=81h)
Note: only affects the current logical LPT1
SeeAlso: AH=A4h
----------17A7-------------------------------
INT 17 - Alloy MW386 v2+ - GET/SET SPOOL FLAGS
AH = A7h
AL = spool flags
bit 0: banner page enabled (see AH=A4h)
1: form feed enabled (see AH=A6h)
2-6: reserved (0)
7: set flags if 1, get flags if 0
BX = logical device number
00h-03h = LPT1-LPT4
04h-07h = COM1-COM4
Return: AL = status (see AH=81h)
Note: the documentation does not state which register contains the result of
a GET
SeeAlso: AH=A4h,AH=A6h
----------17A8-------------------------------
INT 17 - Alloy MW386 - DEFINE TEMPORARY FILENAME
AH = A8h
CX:SI -> ASCIZ filename without extension (max 8 chars)
Return: AL = status (see AH=81h)
Note: allows application to specify banner page filename for spool files
collected from the application's printer output
SeeAlso: AH=A9h
----------17A9-------------------------------
INT 17 - Alloy MW386 - CHANGE TEMPORARY SPOOL DRIVE
AH = A9h
AL = new spool drive (2=C:,3=D:,etc)
Return: AL = status (see AH=81h)
Note: does not remove previous spooling directory since jobs may be pending
SeeAlso: AH=A8h
----------17AA-------------------------------
INT 17 - Alloy MW386 v2+ - GET REAL-TIME PRINTER STATUS
AH = AAh
AL = mode
00h NTNX
DX = NTNX printer number (see AH=88h)
01h MW386
DX = MW386 printer number
Return: AH = instantaneous printer status
00h printer ready
01h not ready
12h off line
13h out of paper
14h general device failure
15h device timeout
16h bad device number
----------17AF-------------------------------
INT 17 - Alloy MW386 - CHECK SPOOLER
AH = AFh
Return: AX = 55AAh if spooler available
----------17C0-------------------------------
INT 17 - PC Magazine PCSpool - GET CONTROL BLOCK ADDRESS
AH = C0h
DX = printer port (0-3)
Return: ES:BX -> control block
SeeAlso: AH=C1h
----------17C1--------------------------------
INT 17 - PC Magazine PCSpool - BUILD CONTROL RECORD
AH = C1h
DX = printer port (0-3)
DS:SI -> ASCIIZ string to save for display
Note: flushes pending writes
SeeAlso: AH=C0h,AH=C2h
----------17C2-------------------------------
INT 17 - PC Magazine PCSpool - FLUSH PENDING WRITES
AH = C2h
DX = printer port (0-3)
SeeAlso: AH=C3h
----------17C3-------------------------------
INT 17 - PC Magazine PCSpool - CANCEL PRINTER QUEUE (FLUSH ALL QUEUED OUTPUT)
AH = C3h
DX = printer port (0-3)
SeeAlso: AH=C2h,AH=C7h
----------17C4-------------------------------
INT 17 - PC Magazine PCSpool - QUERY SPOOLER ACTIVE
AH = C4h
Return: DI = B0BFh
SI = segment
----------17C5-------------------------------
INT 17 - PC Magazine PCSpool - JOB SKIP PRINTER QUEUE
AH = C5h
DX = printer port (0-3)
Note: cancels up to the pause record
----------17C6-------------------------------
INT 17 - PC Magazine PCSpool - CHECK PRINTER QUEUE STATUS
AH = C6h
DX = printer port (0-3)
Return: AX = 0 printer not active or at pause
= 1 printer busy
----------17C7-------------------------------
INT 17 - PC Magazine PCSpool - CLOSE QUEUE
AH = C7h
DX = printer port (0-3)
SeeAlso: AH=C3h
----------17CD00-----------------------------
INT 17 - INSET - EXECUTE COMMAND STRING
AX = CD00h
DS:DX -> ASCIZ command string (max 80 bytes)
Return: CX = 07C2h (1986d)
Note: user interface menus pop up after last command, unless that command
exits INSET
----------17CD01-----------------------------
INT 17 - INSET - GET IMAGE SIZE
AX = CD01h
DS:DX -> ASCIZ name of image file
Return: AX = height in 1/720th inch
BX = width in 1/720th inch
CX = 07C2h (1986d)
----------17CD02-----------------------------
INT 17 - INSET - INITIALIZE
AX = CD02h
Return: CX = 07C2h (1986d)
Note: all open files are closed and the printer is reset
SeeAlso: AX=CD04h
----------17CD03-----------------------------
INT 17 - INSET - EXECUTE INSET MENU WITHIN OVERRIDE MODE
AX = CD03h
Return: CX = 07C2h (1986d)
----------17CD04-----------------------------
INT 17 - INSET - INITIALIZE LINKED MODE
AX = CD04h
ES:DI -> FAR routine for linked mode
Return: CX = 07C2h
Note: calling sequence for linked-mode routine
AL = 00h send character in BL to printer
= 01h send CX bytes from DS:DX to printer
= 02h move print head to horizontal starting position of image
return code for linked-mode routine:
AX = 0000h success
= 0001h failure
SeeAlso: AX=CD02h,AX=CD08h
----------17CD05-----------------------------
INT 17 - INSET - START MERGING IMAGE INTO TEXT
AX = CD05h
DS:DX -> ASCIZ name of PIX file
CX = left margin of text in 1/720th inch
Return: AH = printer type
00h page-oriented (multiple images may be placed side-by-side)
01h line-oriented (use AX=CD06h for vertical paper movement)
CX = 07C2h (1986d)
SeeAlso: AX=CD07h
----------17CD06-----------------------------
INT 17 - INSET - GRAPHICS LINE FEED
AX = CD06h
Return: AH = completion status
00h image complete
01h image incomplete
CX = 07C2h (1986d)
SeeAlso: AX=CD09h
----------17CD07-----------------------------
INT 17 - INSET - FLUSH GRAPHICS FROM MERGE BUFFER
AX = CD07h
Return: CX = 07C2h
SeeAlso: AX=CD05h
----------17CD08-----------------------------
INT 17 - INSET - CANCEL LINK MODE
AX = CD08h
Return: CX = 07C2h
SeeAlso: AX=CD04h
----------17CD09-----------------------------
INT 17 - INSET - ALTER GRAPHICS LINE SPACING
AX = CD09h
CX = line spacing in 1/720th inch
Return: CX = 07C2h
Note: not yet implemented, line spacing is currently fixed at 1/6 inch
SeeAlso: AX=CD06h
----------17CD0A-----------------------------
INT 17 - INSET - GET SETUP
AX = CD0Ah
DS:DX -> buffer for IN.SET data
Return: CX = 07C2h
----------17CD0B-----------------------------
INT 17 - INSET - START GETTING SCALED IMAGE
AX = CD0Bh
DS:SI -> ASCIZ pathname of .PIX file
BX = number of bitplanes
CX = number of rows in output bitmap
DX = number of columns in output bitmap
Return: AX = status
0000h OK
FFFFh error
Note: image is returned in strips by repeated calls to AX=CD0Ch
----------17CD0C-----------------------------
INT 17 - INSET - GET NEXT IMAGE STRIP
AX = CD0Ch
Return: AX = status
0000h OK but not complete
0001h OK and image complete
FFFFh error
DS:SI -> buffer (max 4K) for bit map strip
CX = start row
DX = number of rows
BX = offset in bytes between bit planes
Note: buffer may be overwritten by subsequent calls
SeeAlso: AX=CD0Bh
----------17F0-------------------------------
INT 17 - NorthNet Jetstream API - INSTALLATION CHECK
AH = F0h
DX = printer port (0-3)
Return: AX = 0001h Jetstream present
else non-Jetstream port
Note: NorthNet Jetstream is a high-performance DMA-driven parallel card able
to drive printers at up to 80000 characters per second
----------17F1-------------------------------
INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER
AH = F1h
CX = data buffer length
DX = printer port (0-3)
DS:SI -> data buffer
Return: AX = status
0000h printer not ready (see also AH=02h)
other printing started
SeeAlso: AH=F2h,AH=F3h,AH=F5h
----------17F2-------------------------------
INT 17 - NorthNet Jetstream API - GET PRINT PROGRESS STATUS
AH = F2h
DX = printer port (0-3)
Return: AX = status
0000h prior print request finished
other number of characters left to print
SeeAlso: AH=F1h,AH=F3h
----------17F3-------------------------------
INT 17 - NorthNet Jetstream API - ABORT PRINT OPERATION
AH = F3h
DX = printer port (0-3)
Return: AX = number of unprinted characters due to abort
SeeAlso: AH=F1h,AH=F4h
----------17F4-------------------------------
INT 17 - NorthNet Jetstream API - SET COMPLETION (POST) ADDRESS
AH = F4h
DX = printer port (0-3)
DS:DS -> FAR post address (called with interrupts on)
SeeAlso: AH=F1h,AH=F3h
----------17F5-------------------------------
INT 17 - NorthNet Jetstream API - PRINT DATA BUFFER FROM EXTENDED MEMORY
AH = F5h
CX = data buffer length
DX = printer port (0-3)
DS:SI -> data buffer (32-bit physical address)
Return: AX = status
0000h printer not ready (see also AH=02h)
other printing started
SeeAlso: AH=F1h
----------18---------------------------------
INT 18 - START CASSETTE BASIC
Note: only PCs produced by IBM contain BASIC in ROM, so the action is
unpredicatable on compatibles; this interrupt often reboots the
system, and often has no effect at all
SeeAlso: INT 86"NetBIOS"
----------19---------------------------------
INT 19 - SYSTEM - BOOTSTRAP LOADER
Reboot the system without clearing memory or restoring interrupt vectors.
Because interrupt vectors are preserved, this interrupt usually causes a
system hang if any TSRs have hooked vectors from 00h through 1Ch,
particularly INT 08.
Usually, the BIOS will try to read sector 1, head 0, track 0 from drive A:
to 0000h:7C00h. If this fails, and a hard disk is installed, the BIOS will
read sector 1, head 0, track 0 of the first hard disk. This sector should
contain a master bootstrap loader and a partition table. After loading the
master boot sector at 0000h:7C00h, the master bootstrap loader is given
control. It will scan the partition table for an active partition, and will
then load the operating system's bootstrap loader (contained in the first
sector of the active partition) and give it control.
True IBM PCs issue an INT 18 if neither floppy nor hard disk have a valid
boot sector.
Notes: to accomplish a warm boot equivalent to Ctrl-Alt-Del, store 1234h in
0040h:0072h and jump to FFFFh:0000h. For a cold boot equivalent to
a reset, store 0000h at 0040h:0072h before jumping.
VDISK.SYS hooks this interrupt to allow applications to find out how
much extended memory has been used by VDISKs (the three bytes at
offset 2Ch in the INT 19 handler's segment contain the linear address
of the first free extended memory).
default handler is at F000h:E6F2h for 100% compatible BIOSes
SeeAlso: INT 14/AH=17h,INT 18
Format of hard disk master boot sector:
Offset Size Description
00h 446 BYTEs Master bootstrap loader code
1BEh 16 BYTEs partition record for partition 1 (see below)
1CEh 16 BYTEs partition record for partition 2
1DEh 16 BYTEs partition record for partition 3
1EEh 16 BYTEs partition record for partition 4
1FEh WORD signature, AA55h indicates valid boot block
Format of partition record:
Offset Size Description
00h BYTE boot indicator (80h = active partition)
01h BYTE partition start head
02h BYTE partition start sector (bits 0-5)
03h BYTE partition start track (bits 8,9 in bits 6,7 of sector)
04h BYTE operating system indicator (see below)
05h BYTE partition end head
06h BYTE partition end sector (bits 0-5)
07h BYTE partition end track (bits 8,9 in bits 6,7 of sector)
08h DWORD sectors preceding partition
0Ch DWORD length of partition in sectors
Values for operating system indicator:
00h empty
01h DOS 12-bit FAT
02h XENIX file system
03h XENIX /usr file system (obsolete)
04h DOS 16-bit FAT
05h DOS 3.3+ extended partition
06h DOS Large File System
07h QNX, OS/2 HPFS
08h AIX bootable partition
09h AIX data partition
51h Disk Manager
52h CP/M
56h GB ???
61h SpeedStor
63h SysV/386
64h Novell NetWare
75h PC/IX
80h Minix v1.3 and below
81h Minix v1.5+
DBh CP/M
E1h SpeedStor 12-bit FAT extended partition
E4h SpeedStor 16-bit FAT extended partition
FEh LANstep
FFh Bad Blocks
----------1A00-------------------------------
INT 1A - TIME - GET SYSTEM TIME
AH = 00h
Return: CX:DX = number of clock ticks since midnight
AL = midnight flag, nonzero if midnight passed since time last read
Notes: there are approximately 18.2 clock ticks per second, 1800B0h per 24 hrs
IBM and many clone BIOSes set the flag for AL rather than incrementing
it, leading to loss of a day if two consecutive midnights pass
without a request for the time (e.g. if the system is on but idle)
SeeAlso: AH=01h,AH=02h,INT 21/AH=2Ch
----------1A01-------------------------------
INT 1A - TIME - SET SYSTEM TIME
AH = 01h
CX:DX = number of clock ticks since midnight
SeeAlso: AH=00h,AH=03h,INT 21/AH=2Dh
----------1A02-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK TIME (AT,XT286,PS)
AH = 02h
Return: CF clear if successful
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
DL = daylight savings flag (00h standard time, 01h daylight time)
CF set on error (i.e. clock not running or in middle of update)
SeeAlso: AH=00h
----------1A03-------------------------------
INT 1A - TIME - SET REAL-TIME CLOCK TIME (AT,XT286,PS)
AH = 03h
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
DL = daylight savings flag (00h standard time, 01h daylight time)
SeeAlso: AH=01h
----------1A04-------------------------------
INT 1A - TIME - GET REAL-TIME CLOCK DATE (AT,XT286,PS)
AH = 04h
Return: CF clear if successful
CH = century (BCD)
CL = year (BCD)
DH = month (BCD)
DL = day (BCD)
CF set on error
SeeAlso: AH=02h,AH=05h,INT 21/AH=2Ah
----------1A05-------------------------------
INT 1A - TIME - SET REAL-TIME CLOCK DATE (AT,XT286,PS)
AH = 05h
CH = century (BCD)
CL = year (BCD)
DH = month (BCD)
DL = day (BCD)
SeeAlso: AH=04h,INT 21/AH=2Bh
----------1A06-------------------------------
INT 1A - TIME - SET ALARM (AT,XT286,PS)
AH = 06h
CH = hour (BCD)
CL = minutes (BCD)
DH = seconds (BCD)
Return: CF set on error (alarm already set or clock stopped for update)
CF clear if successful
Note: the alarm occurs every 24 hours until turned off, invoking INT 4A each
time
SeeAlso: AH=07h,INT 4A
----------1A07-------------------------------
INT 1A - TIME - CANCEL ALARM (AT,XT286,PS)
AH = 07h
Return: alarm disabled
Note: does not disable the real-time clock's IRQ
SeeAlso: AH=06h,INT 70
----------1A08-------------------------------
INT 1A - TIME - SET RTC ACTIVATED POWER ON MODE (CONVERTIBLE)
AH = 08h
CH = hours in BCD
CL = minutes in BCD
DH = seconds in BCD
----------1A09-------------------------------
INT 1A - TIME - READ RTC ALARM TIME AND STATUS (CONV,PS30)
AH = 09h
Return: CH = hours in BCD
CL = minutes in BCD
DH = seconds in BCD
DL = alarm status
00h alarm not enabled
01h alarm enabled but will not power up system
02h alarm will power up system
----------1A0A-------------------------------
INT 1A - TIME - READ SYSTEM-TIMER DAY COUNTER (XT2,PS)
AH = 0Ah
Return: CF set on error
CF clear if successful
CX = count of days since Jan 1,1980
SeeAlso: AH=04h,AH=0Bh
----------1A0B-------------------------------
INT 1A - TIME - SET SYSTEM-TIMER DAY COUNTER (XT2,PS)
AH = 0Bh
CX = count of days since Jan 1,1980
Return: CF set on error
CF clear if successful
SeeAlso: AH=05h,AH=0Ah
----------1A3601-----------------------------
INT 1A - WORD PERFECT 5.0 Third Party Interface - INSTALLATION CHECK
AX = 3601h
Return: DS:SI = routine to monitor keyboard input, immediately preceded by the
ASCIZ string "WPCORP\0"
Notes: WordPerfect 5.0 will call this interrupt at start up to determine if a
third party product wants to interface with it. The third party
product must intercept this interrupt and return the address of a
keyboard monitor routine.
Before checking for keyboard input, and after every key entered by the
user, Word Perfect will call the routine whose address was provided
in DS:SI with the following parameters:
Entry: AX = key code or 0
BX = WordPerfect state flag
Exit: AX = 0 or key code
BX = 0 or segment address of buffer with key codes
See the "WordPerfect 5.0 Developer's Toolkit" for further information.
----------1A80-------------------------------
INT 1A - PCjr - SET UP SOUND MULTIPLEXOR
AH = 80h
AL = 00h source is 8253 channel 2
01h source is cassette input
02h source is I/O channel "Audio IN"
03h source is sound generator chip
----------1AA0-------------------------------
INT 1A - Disk Spool II v??? - INSTALLATION CHECK
AH = A0h
Return: AH = B0h
ES = code segment
BX -> name of current spool file
SI -> current despool file
CL = 00h despooler is disabled
= 41h despooler is enabled
CH = 00h spooler is disabled
= 41h spooler is enabled
DL = 00h despooler is currently active printing a file
= 41h despooler is standing by
SeeAlso: AH=D0h
----------1AAB-------------------------------
INT 1A - Disk Spool II v1.83 - INSTALLATION CHECK
AH = ABh
Return: ES = code segment
BX -> name of current spool file
SI -> current despool file
CL = ???
CH = ???
DL = ???
DH = 00h ???
= 41h ???
AL = ???
AH = BAh
DI = 0000h ???
0001h ???
SeeAlso: AH=ACh,AH=ADh
----------1AAC-------------------------------
INT 1A - Disk Spool II v1.83 - INSTALLATION CHECK
AH = ACh
Return: (see AH=ABh)
Note: this function is identical to AH=ABh
SeeAlso: AH=ABh,AH=ADh
----------1AAD-------------------------------
INT 1A - Disk Spool II v1.83 - FUNCTION CALLS
AH = ADh
AL = function code
02h enable spooler only
03h enable the despooler
04h disable the despooler
08h inhibit popup menu
09h enable popup menu
0Ah ???
0Bh disable the spooler
0Ch ???
0Dh ???
0Eh pop up the menu
0Fh ???
11h ???
14h ???
15h ???
16h ???
17h ???
18h ???
19h ???
20h ???
21h ???
22h ???
23h ???
30h ???
Return: AH = 00h if successful
SeeAlso: AH=ABh
----------1AD0-------------------------------
INT 1A - Disk Spool II v??? - FUNCTION CALLS
AH = D0h
AL = function code
01h enable spooler and despooler
02h enable spooler only
03h enable despooler at beginning of file
04h disable the despooler
05h disable the despooler and spooler
06h clear the spool file
08h inhibit the popup menu
09h enable the popup menu
0Bh disable the spooler
0Ch start despooler after last successfully printed document
0Dh start despooler at the exact point where it last left off
0Eh pop up the menu
20h clear file pointed to by the despooler
SeeAlso: AH=A0h
----------1AFE-------------------------------
INT 1A - AT&T 6300 - READ TIME AND DATE
AH = FEh
Return: BX = day count (0 = Jan 1, 1984)
CH = hour
CL = minute
DH = second
DL = hundredths
SeeAlso: AH=FFh,INT 21/AH=2Ah,INT 21/AH=2Ch
----------1AFF-------------------------------
INT 1A - AT&T 6300 - SET TIME AND DATE
AH = FFh
BX = day count (0 = Jan 1, 1984)
CH = hour
CL = minute
DH = second
DL = hundredths
Return: ???
SeeAlso: AH=FEh,INT 21/AH=2Bh,INT 21/AH=2Dh
----------1B---------------------------------
INT 1B - KEYBOARD - CONTROL-BREAK HANDLER
called when INT 09 determines that Control-Break has been pressed
Note: normally points to a short routine in DOS which sets the Ctrl-C flag,
thus invoking INT 23h the next time DOS checks for Ctrl-C.
SeeAlso: INT 23
----------1C---------------------------------
INT 1C - TIME - SYSTEM TIMER TICK
called on each clock tick by the INT 08 handler
Note: preferred interrupt to chain when a program needs to be invoked
regularly
SeeAlso: INT 08
----------1D---------------------------------
INT 1D - SYSTEM DATA - VIDEO PARAMETER TABLES
Note: default parameter table at F000h:F0A4h for 100% compatible BIOSes
SeeAlso: INT 10/AH=00h
Format of video parameters:
Offset Size Description
00h 16 BYTEs 6845 register values for modes 00h and 01h
10h 16 BYTEs 6845 register values for modes 02h and 03h
20h 16 BYTEs 6845 register values for modes 04h and 05h
30h 16 BYTEs 6845 register values for modes 06h and 07h
40h WORD bytes in video buffer for modes 00h and 01h
42h WORD bytes in video buffer for modes 02h and 03h
44h WORD bytes in video buffer for modes 04h and 05h
46h WORD bytes in video buffer for modes 06h and 07h
48h 8 BYTEs columns on screen for each of modes 00h through 07h
50h 8 BYTEs CRT controller mode bytes for each of modes 00h through 07h
----------1E---------------------------------
INT 1E - SYSTEM DATA - DISKETTE PARAMETERS
Note: default parameter table at F000h:EFC7h for 100% compatible BIOSes
SeeAlso: INT 13/AH=0Fh,INT 41
Format of diskette parameter table:
Offset Size Description
00h BYTE first specify byte
bits 7-4: step rate
3-0: head unload time (0Fh = 240 ms)
01h BYTE second specify byte
bits 7-1: head load time (01h = 4 ms)
0: non-DMA mode (always 0)
02h BYTE delay until motor turned off (in clock ticks)
03h BYTE bytes per sector (00h = 128, 01h = 256, 02h = 512, 03h = 1024)
04h BYTE sectors per track
05h BYTE length of gap between sectors (2Ah for 5.25", 1Bh for 3.5")
06h BYTE data length (ignored if bytes-per-sector field nonzero)
07h BYTE gap length when formatting (50h for 5.25", 6Ch for 3.5")
08h BYTE format filler byte (default F6h)
09h BYTE head settle time in milliseconds
0Ah BYTE motor start time in 1/8 seconds
----------1F---------------------------------
INT 1F - SYSTEM DATA - 8x8 GRAPHICS FONT
points at 1024 bytes of graphics data, 8 bytes for each character 80h-FFh
Note: graphics data for characters 00h-7Fh stored at F000h:FA6Eh in 100%
compatible BIOSes
---------------------------------------------