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1998-03-22
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Interrupt List, part 3 of 16
Copyright (c) 1989,1990,1991,1992,1993,1994,1995,1996,1997,1998 Ralf Brown
--------T-1512-------------------------------
INT 15 - VMiX - "sys_sleep" - PUT PROCESS TO SLEEP
AH = 12h
STACK: WORD process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=03h"MultiDOS",AX=101Dh,AH=13h"VMiX"
--------T-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"
Index: hotkeys;MultiDOS Plus
--------Q-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)
SeeAlso: AH=12h/BH=02h,AH=12h/BH=80h
--------Q-1512--BH01-------------------------
INT 15 - TopView - SEND MESSAGE - "NEW" - CREATE NEW OBJECT
AH = 12h
BH = 01h
BL = object type to create (see #0361)
STACK: (only 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,AH=12h/BH=81h
(Table 0361)
Values for TopView/DESQview object type (for creation):
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
--------Q-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
Return: STACK popped if handle passed on stack
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,AH=12h/BH=82h
--------Q-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,AH=12h/BH=83h
--------Q-1512--BH03-------------------------
INT 15 - DESQview v2.26+ - "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: STACK popped
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
SeeAlso: AH=12h/BH=83h
--------Q-1512--BX0300-----------------------
INT 15 - TopView - SEND MESSAGE - "DIR" - GET PANEL FILE DIRECTORY
AH = 12h
BX = 0300h
STACK: DWORD handle of panel object (see #0362)
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
SeeAlso: AH=12h/BX=0400h"APPLY",AH=12h/BH=83h
Format of TopView panel file:
Offset Size Description (Table 0362)
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
--------Q-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,AH=12h/BH=84h
--------Q-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 of pointer message (see #0363)
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",AH=12h/BH=84h
Format of DESQview pointer message:
Offset Size Description (Table 0363)
00h WORD row
02h WORD column
04h BYTE status (see #0364)
05h BYTE field number or zero (APILEVEL >= 2.00 only)
Bitfields for DESQview pointer status:
Bit(s) Description (Table 0364)
7-2 number of clicks-1 if multiple-click mode active
7 set when press/release mode active and button pressed
6 set when press/release mode active and button released
1-0 button pressed (00=none,01=button1,10=button2)
SeeAlso: #0363
--------Q-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
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=84h
--------Q-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 window which was used
DWORD handle of keyboard or 0
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.
SeeAlso: AH=12h/BH=84h
--------Q-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
Return: STACK popped
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,AH=12h/BH=85h
--------Q-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 (see #0365)
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 (arguments have been popped)
SeeAlso: AH=12h/BH=04h,AH=12h/BH=85h
Format of stream data structure:
Offset Size Description (Table 0365)
00h BYTE 1Bh magic value identifying start of stream
01h BYTE stream type (00h, 01h, 10h, 14h-1Fh legal)
(see #0366,#0372,#0373,#0374)
02h WORD length of remainder of stream in bytes
var-length fields follow, each an OPCODE followed by
zero or more args
(Table 0366)
Values for MODE 00h (set or display values) "WINDOW STREAM" opcodes:
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 number of rows
A7h set width of physical window
BYTE number of 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 number of rows (signed, negative values move up)
[if rows=0 and hardware cursor owner, update hardware cursor]
B1h move logical cursor right
BYTE number of columns (signed, negative values move left)
[if cols=0 and hardware cursor owner, update hardware cursor]
B2h shift top edge of scrolling region
BYTE number of rows (signed)
B3h shift left edge of scrolling region
BYTE number of columns (signed)
B4h shift physical window down
BYTE number of lines (signed)
B5h shift physical window right
BYTE number of columns (signed)
B6h expand physical window vertically
BYTE number of lines (signed)
B7h expand physical window horizontally
BYTE number of columns (signed)
B8h adjust viewport row
BYTE number of rows (signed)
B9h adjust viewport column
BYTE number of columns (signed)
BAh adjust virtual screen height [contents of window unpredict after]
BYTE number of rows to increase (signed)
BBh adjust virtual screen width [contents of window unpredictbl after]
BYTE number of columns 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 number of rows
BYTE number of columns
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 number of rows
BYTE number of columns
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 hardw cursor]
C9h shift top left corner of scrolling region
BYTE number of rows (signed)
BYTE number of columns (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 number of rows to expand (signed)
BYTE number of columns 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 (see #0367)
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
Note: the window is created with a physical size of 0x0 at the
same position as the window to which this stream was sent
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 number of first attribute to change - 1
bits 0-3 number of consecutive attributes to change
N BYTEs new attributes
EDh set logical attributes for window frame
BYTE video modes command applies to (also see opcode ECh)
BYTE which attributes to set
bit 7 if set, copy single following byte to indicated attrs
bits 4-6 number of first attribute to change - 1
bits 0-3 number 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 (also see opcode ECh)
BYTE which characters to set
bit 7 if set, copy single following byte to indicated chars
bits 4-6 number of first character to change - 1
bits 0-3 number of consecutive characters 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 (also 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
the 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
6 BYTEs field table header (see #0368)
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 #0368)
7/8N BYTEs the field table entries, one for each field (see #0370)
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.
SeeAlso: #0365,#0372
(Table 0367)
Values for TopView logical attributes:
01h normal text
02h highlighted normal text
03h help text
04h highlighted help text
05h error message
06h highlighted error message
07h emphasized text
08h marked text
9-16 reverse video versions of 1-8
SeeAlso: #0366
Format of TopView field table header:
Offset Size Description (Table 0368)
00h BYTE number of fields (must be <= existing number of fields)
01h BYTE screen behavior bits (see #0369)
02h BYTE current input field (updated by DESQview)
03h BYTE current select field (updated by DESQview)
04h BYTE attribute for select fields when they are pointed at
05h BYTE attribute for select fields which have been selected
SeeAlso: #0366,#0370
Bitfields for TopView screen behavior bits:
Bit(s) Description (Table 0369)
7 reserved
6 menu items may be selected via keyboard
5 left mouse button in "status" mode (press anywhere in window
immediately returns control to application)
4 right mouse button in "status" mode
3 select fields return contents or blanks rather than 'Y' or 'N'
2 modified bits reset on return to application
1-0 type of data returned
00 no data returned on read of keyboard
01 data returned as array of characters 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
SeeAlso: #0366
Format of TopView field table entry:
Offset Size Description (Table 0370)
00h BYTE start row \
01h BYTE start column \ if menu selection and start is to
02h BYTE end row / right or below end, select from kbd only
03h BYTE end column /
04h BYTE field type (see #0371)
05h BYTE modifier
if type is fill-in, then bit flags to determine behavior
bit 7 automatically enter CR when field full
bit 6 move to next field when current field is full
bit 5 enter text from right end (for numbers)
bit 4 force input to uppercase
bit 3 clear old contents on first keystroke
bit 2 input returned when cursor moves out of
modified field ("validate", 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)
06h BYTE (select field only) normal color of field
07h 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
SeeAlso: #0368
Bitfields for TopView field type:
Bit(s) Description (Table 0371)
7,6 field class
00 inactive (non-entry) field
01 echos keystrokes input to make menu selection
10 fill-in field
11 select field
5 field can be filled by broadcast write (F7h opcode)
4 reserved
3 reserved
2 reserved
1 set if field selected
0 set if field modified
SeeAlso: #0370
(Table 0372)
Values for MODE 01h "QUERY STREAM" opcodes:
(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 number of consecutive attributes
N BYTEs buffer to hold attributes
EDh get logical attributes for window frame
BYTE execute call if currently in video mode (also see opcode ECh)
BYTE which attributes to get
bit 7 unused???
bits 4-6 first attribute to get - 1
bits 0-3 number of consecutive attributes
N BYTEs buffer to hold attributes
EEh get characters for window frame
BYTE execute call if currently in video mode (also see opcode ECh)
BYTE which attributes to get
bit 7 unused???
bits 4-6 first char to get - 1
bits 0-3 number of 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 equal to field size)
F5h get field table entry
BYTE field number
7-8 BYTEs buffer to hold field table entry (see #0370)
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 field table header (see #0368)
SeeAlso: #0365,#0373
(Table 0373)
Values for MODE 10h "MANAGER STREAM" opcodes (valid only for those listed):
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 (see #0375)
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
SeeAlso: #0365,#0372,#0374
(Table 0374)
Values for 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 = number of bytes in stream
ES:DI = window's handle
SeeAlso: #0372,#0373
(Table 0375)
Values asynchronous notification routine defined by man.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
--------Q-1512--BH06-------------------------
INT 15 - DESQview 2.20+ - 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
(DV 2.50+) window
01h (DV 2.50+) current task's window
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
(new priority of task if window handle)
Return: STACK popped
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
for window handles, only the non-blocked task(s) with the highest
priority receive CPU time under DESQview 2.50-2.52; the default
priority is 0Ah
SeeAlso: AH=12h/BH=07h,AH=12h/BH=87h
--------Q-1512--BH07-------------------------
INT 15 - DESQview 2.20+ - 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
(DV 2.50+) window
01h (DV 2.50+) current task's window
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
--------Q-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 (any handle on stack has been popped)
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
--------Q-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
mailbox: (DV/X) get number of bytes queued to mailbox
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 (any handle on stack has been popped)
SeeAlso: AH=12h/BH=08h
--------Q-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
Return: STACK popped
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"
--------Q-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
Return: STACK popped
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"
--------Q-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 (see #0377)
keyboard: set control flags (see #0376)
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
Return: STACK popped
SeeAlso: AH=12h/BH=0Bh"OBJECT"
Bitfields for DESQview keyboard object bits:
Bit(s) Description (Table 0376)
15 reserved, can't be set
14 unused
13 reserved, can't be set
12-6 unused
5 (DV 2.2+) exclusive input
4 filter all keys (used with handler established by SETESC)
if 0, only keys that would normally be displayed are filtered
3 program continues executing while input in progress
2 insert mode active for field mode
1 hardware cursor displayed when task is hardware cursor owner
must be set if keyboard in field mode and field table includes input
fields
0 keyboard is in field mode rather than keystroke mode
Bitfields for DESQview pointer object bits:
Bit(s) Description (Table 0377)
15 reserved, can't be set
14-8 unused
7 mouse pointer is hidden while in window
6 get messages even if window not topmost
5 get messages even if window not foreground
4 multiple clicks separated by less than 1/3 second are counted and
returned in a single message
3 pointer position is relative to screen origin, not window origin
2 send message on button release as well as button press
1 (DV 2.23+) send message with row=FFFFh and col=FFFFh whenever the
pointer leaves the window
0 send message only on button activity, not movement
DV-specific, and INT 15/AX=DE0Fh must have been called first
--------Q-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
Return: STACK popped
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"
--------Q-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
Return: STACK popped
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"
--------Q-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
Return: STACK popped
Note: should be sent whenever an object is erased or closed
--------Q-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 #0376,#0377)
Return: STACK popped
SeeAlso: AH=12h/BH=0Ah"OBJECT"
--------Q-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
Return: STACK popped
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"
--------Q-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 given task's OBJECTQ (task's handle on top of stack)
07h close current task's OBJECTQ
Return: STACK popped if handle passed on stack
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"
--------Q-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
Return: STACK popped if handle passed on stack
Note: when an OBJECTQ is erased, each object in the OBJECTQ is also erased
SeeAlso: AH=12h/BH=02h
--------Q-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 stat 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 (any handle passed on stack popped)
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 the 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"
--------Q-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 (any handle on stack has been popped)
--------Q-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
Return: STACK popped
--------Q-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
Return: STACK popped
SeeAlso: AH=12h/BH=12h"GETNAME",AX=DE0Eh
--------Q-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
Return: STACK popped
SeeAlso: AH=12h/BX=1200h
--------Q-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 number of bytes actually read
DWORD address of buffer containing data
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"
--------Q-1512--BH12-------------------------
INT 15 - DESQview 2.50+ - SEND MESSAGE - "GETNAME" - GET NAME OF MAILBOX
AH = 12h
BH = 12h
BL = mailbox for which to retrieve 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 buffer for name
DWORD pointer to buffer
Return: STACK: DWORD length of returned name (or size of buffer, if less)
Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
Note: the returned name is not NUL-terminated
SeeAlso: AH=12h/BH=11h"SETNAME",AX=DE0Eh
--------Q-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
--------Q-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
Return: STACK popped if handle was passed on stack
SeeAlso: AH=12h/BH=05h"WINDOW",AH=12h/BH=0Eh
--------Q-1512--BH13-------------------------
INT 15 - DESQview 2.50+ - SEND MESSAGE - "READINTO" - GET NEXT MAIL MESSAGE
AH = 12h
BH = 13h
BL = mailbox from which to read
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 size of buffer in bytes
DWORD pointer to buffer
Return: STACK: DWORD number of bytes read
Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
Notes: this call blocks if no input is available, but will return less than
the requested number of bytes if some (but insufficient) data is
available
use this call instead of AH=12h/BH=04h if the mailbox has flag bits
4 or 5 set, as common memory may be exhausted by that call when
attempting to read the next message
SeeAlso: AH=12h/BH=04h"READ",AH=12h/BH=05h,AH=12h/BH=16h
--------Q-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
Return: STACK popped
--------Q-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 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 (see #0378)
Return: STACK popped
(Table 0378)
Values keyboard filter function is called with when keyboard is in field mode:
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
Return: AH = action to take
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
--------Q-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
Return: STACK popped if BL=00h
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
--------Q-1512--BH15-------------------------
INT 15 - DESQview v2.20+ - 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 (see #0379,#0380)
Return: STACK popped
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
if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
"READ" (see AH=12h/BH=13h"READINTO") to retrieve messages
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=16h
Bitfields for DESQview mailbox object flags:
Bit(s) Description (Table 0379)
0 all mail messages in common memory
1 allow write even if closed
2 don't erase messages when mailbox closed
4 (DV/X) append messages with like status and sender (stream-oriented
mail)
5 (DV/X) store mail in expanded memory (pool grows as needed)
6 (DV/X) make mailbox into non-owned mailbox
Bitfields for DESQview keyboard object flags:
Bit(s) Description (Table 0380)
5 exclusive input when keyboard in use for input
--------Q-1512--BH16-------------------------
INT 15 - DESQview v2.20+ - 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 (see #0379,#0380)
Notes: only available if the API level has been set to at least 2.20
if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
"READ" (see AH=12h/BH=13h"READINTO") to retrieve messages
SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=13h"READINTO",AH=12h/BH=15h
--------Q-1512--BH17-------------------------
INT 15 - DESQview v2.42-2.52 - BUG
AH = 12h
BH = 17h
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 popped if handle passed on stack
Notes: due to a fencepost error, message 17h is accepted for mailboxes,
keyboards, and pointers, but causes a random branch
DESQview v2.50-2.52 are distributed as part of DESQview/X v1.02
--------Q-1512--BH80-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 00h WITH ERROR RECOVERY
AH = 12h
BH = 80h
Note: this function is identical to AH=12h/BH=00h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=00h
(Table 0381)
Values for DESQview error code:
00h no error
01h invalid values
02h alias invalid
03h handle valid but wrong type
04h invalid handle
--------Q-1512--BH81-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 01h WITH ERROR RECOVERY
AH = 12h
BH = 81h
Note: this function is identical to AH=12h/BH=01h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=01h
--------Q-1512--BH82-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 02h WITH ERROR RECOVERY
AH = 12h
BH = 82h
Note: this function is identical to AH=12h/BH=02h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=02h
--------Q-1512--BH83-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 03h WITH ERROR RECOVERY
AH = 12h
BH = 83h
Note: this function is identical to AH=12h/BH=03h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=03h,AH=12h/BX=0300h
--------Q-1512--BH84-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 04h WITH ERROR RECOVERY
AH = 12h
BH = 84h
Note: this function is identical to AH=12h/BH=04h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=04h,AH=12h/BX=0400h
--------Q-1512--BH85-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 05h WITH ERROR RECOVERY
AH = 12h
BH = 85h
Note: this function is identical to AH=12h/BH=05h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=05h
--------Q-1512--BH86-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 06h WITH ERROR RECOVERY
AH = 12h
BH = 86h
Note: this function is identical to AH=12h/BH=06h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=06h
--------Q-1512--BH87-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 07h WITH ERROR RECOVERY
AH = 12h
BH = 87h
Note: this function is identical to AH=12h/BH=07h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=07h
--------Q-1512--BH88-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 08h WITH ERROR RECOVERY
AH = 12h
BH = 88h
Note: this function is identical to AH=12h/BH=08h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=08h
--------Q-1512--BH89-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 09h WITH ERROR RECOVERY
AH = 12h
BH = 89h
Note: this function is identical to AH=12h/BH=09h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=09h
--------Q-1512--BH8A-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ah WITH ERROR RECOVERY
AH = 12h
BH = 8Ah
Note: this function is identical to AH=12h/BH=0Ah, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Ah
--------Q-1512--BH8B-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Bh WITH ERROR RECOVERY
AH = 12h
BH = 8Bh
Note: this function is identical to AH=12h/BH=0Bh, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Bh
--------Q-1512--BH8C-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ch WITH ERROR RECOVERY
AH = 12h
BH = 8Ch
Note: this function is identical to AH=12h/BH=0Ch, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Ch
--------Q-1512--BH8D-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Dh WITH ERROR RECOVERY
AH = 12h
BH = 8Dh
Note: this function is identical to AH=12h/BH=0Dh, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Dh
--------Q-1512--BH8E-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Eh WITH ERROR RECOVERY
AH = 12h
BH = 8Eh
Note: this function is identical to AH=12h/BH=0Eh, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Eh
--------Q-1512--BH8F-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 0Fh WITH ERROR RECOVERY
AH = 12h
BH = 8Fh
Note: this function is identical to AH=12h/BH=0Fh, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=0Fh
--------Q-1512--BH90-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 10h WITH ERROR RECOVERY
AH = 12h
BH = 90h
Note: this function is identical to AH=12h/BH=10h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=10h
--------Q-1512--BH91-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 11h WITH ERROR RECOVERY
AH = 12h
BH = 91h
Note: this function is identical to AH=12h/BH=11h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=11h,AH=12h/BX=1100h
--------Q-1512--BH92-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 12h WITH ERROR RECOVERY
AH = 12h
BH = 92h
Note: this function is identical to AH=12h/BH=12h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=12h,AH=12h/BX=1200h
--------Q-1512--BH93-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 13h WITH ERROR RECOVERY
AH = 12h
BH = 93h
Note: this function is identical to AH=12h/BH=13h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=13h
--------Q-1512--BH94-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 14h WITH ERROR RECOVERY
AH = 12h
BH = 94h
Note: this function is identical to AH=12h/BH=14h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=14h
--------Q-1512--BH95-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 15h WITH ERROR RECOVERY
AH = 12h
BH = 95h
Note: this function is identical to AH=12h/BH=15h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=15h
--------Q-1512--BH96-------------------------
INT 15 - DESQview v2.50+ - SEND MESSAGE 16h WITH ERROR RECOVERY
AH = 12h
BH = 96h
Note: this function is identical to AH=12h/BH=16h, except that DESQview will
not pop up a "Programming Error" window, instead returning an error
code in AL (see #0381)
SeeAlso: AH=12h/BH=16h
--------T-1513-------------------------------
INT 15 - VMiX - "sys_wake" - WAKE SLEEPING PROCESS
AH = 13h
STACK: WORD process ID
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=12h"VMiX"
--------T-1513-------------------------------
INT 15 - MultiDOS Plus - GET TASK CONTROL BLOCK
AH = 13h
Return: BX:AX -> task control block (see #0382)
SeeAlso: AH=15h"MultiDOS"
Format of MultiDOS Plus v4.0 task control block:
Offset Size Description (Table 0382)
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)
--------T-1514-------------------------------
INT 15 - VMiX - "sys_clrwindow" - CLEAR WINDOW
AH = 14h
STACK: WORD top left corner of window (high byte = row, low = col)
WORD bottom right corner of window (high = row, low = col)
Return: AX = status (SYS_OK)
Note: clears window to color set with "sys_setcolors" (AH=18h)
SeeAlso: AH=15h"VMiX",AH=16h"VMiX",AH=18h"VMiX",AH=1Fh"VMiX"
--------T-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"
--------T-1515-------------------------------
INT 15 - VMiX - "sys_setbwindow" - SET BANNER WINDOW MESSAGE
AH = 15h
STACK: DWORD pointer to ASCIZ banner message for top of screen
Return: AX = status (SYS_OK)
SeeAlso: AH=14h"VMiX",AH=16h"VMiX"
--------T-1515-------------------------------
INT 15 - MultiDOS Plus - GET SYSTEM BLOCK
AH = 15h
Return: BX:AX -> system block (see #0383)
SeeAlso: AH=13h"MultiDOS"
Format of MultiDOS Plus 4.0 system block:
Offset Size Description (Table 0383)
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 #0382)
12h DWORD pointer to WORD with idle task TCB offset
16h DWORD pointer to WORD with foreground TCB offset (see #0382)
1Ah DWORD pointer to WORD with MultiDOS TCB offset (see #0382)
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
--------T-1516-------------------------------
INT 15 - VMiX - "sys_setwindow" - SET ROOT WINDOW SIZE AND HOME CURSOR
AH = 16h
STACK: DWORD pointer to I/O Request Packet
WORD top left corner of window (high byte = row, low = col)
WORD bottom right corner of window (high = row, low = col)
Return: AX = status (SYS_OK or SYS_ERROR)
SeeAlso: AH=14h"VMiX",AH=17h"VMiX"
--------T-1516-------------------------------
INT 15 - MultiDOS Plus - INITIALIZATION
AH = 16h
Note: used internally during initialization; any other calls will cause
unpredictable results
--------T-1517-------------------------------
INT 15 - VMiX - "sys_getcolors" - GET CONSOLE WINDOW COLORS
AH = 17h
Return: AH = foreground color
AL = background color
SeeAlso: AH=16h"VMiX",AH=18h"VMiX"
--------T-1517-------------------------------
INT 15 - MultiDOS Plus - MAP IRQ
AH = 17h
AL = IRQ to map (01h-0Fh)
BX = offset of task control block (see #0382) 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"
--------T-1518-------------------------------
INT 15 - VMiX - "sys_setcolors" - SET CONSOLE COLORS
AH = 18h
STACK: WORD new background/foreground colors
bits 3-0: foreground
bits 7-4: background
bits 15-8: unused
Return: AX = color
SeeAlso: AH=14h"VMiX",AH=17h"VMiX",AH=19h"VMiX"
--------T-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"
--------T-1519-------------------------------
INT 15 - VMiX v2+ - "sys_setconwn" - SET WINDOW COLORS
AH = 19h
STACK: WORD new background/foreground colors
bits 3-0: foreground
bits 7-4: background
bits 15-8: unused
Return: AX = color
SeeAlso: AH=18h"VMiX"
--------T-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"
--------T-151A-------------------------------
INT 15 - VMiX v2+ - "sys_sint" - INVOKE SOFTWARE INTERRUPT
AH = 1Ah
STACK: WORD interrupt number
DWORD pointer to register structure
Return: AX = returned flags
--------T-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"
--------T-151B-------------------------------
INT 15 - VMiX v2+ - "sys_blkmov" - MOVE MEMORY BLOCK
AH = 1Bh
STACK: DWORD source address
DWORD destination address
WORD number of words to move
Return: nothing
--------T-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 AH=01h"MultiDOS")
equivalent to AH=1Ah followed by AH=01h
SeeAlso: AH=01h"MultiDOS",AH=1Ah"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
--------T-151C-------------------------------
INT 15 - VMiX v2+ - "sys_bitblt" - PUT GRAPHICAL OBJECT AT CURSOR POSITION
AH = 1Ch
STACK: WORD AND/OR pixel with background (00h = OR, 01h = AND)
DWORD pointer to object bitmap
WORD object width in pixels
WORD object height in pixels
Return: nothing
SeeAlso: AH=1Dh"VMiX"
--------T-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 AH=02h"MultiDOS")
equivalent to AH=1Ah followed by AH=02h
SeeAlso: AH=02h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Dh"MultiDOS"
--------T-151D-------------------------------
INT 15 - VMiX v2+ - "sys_getfont" - GET CURRENT CONSOLE GRAPHICS FONT
AH = 1Dh
Return: AX = current font number (00h-03h)
SeeAlso: AH=1Ch"VMiX",AH=1Eh"VMiX"
--------T-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 AH=10h"MultiDOS")
equivalent to AH=1Ah followed by AH=10h
SeeAlso: AH=10h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Ch"MultiDOS"
--------T-151E-------------------------------
INT 15 - VMiX v2+ - "sys_setfont" - SET CONSOLE GRAPHICS FONT
AH = 1Eh
STACK: WORD new font number (00h-03h)
Return: AX = current font number (00h-03h)
SeeAlso: AH=1Dh"VMiX"
--------T-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
--------T-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
--------T-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
--------T-151E08-----------------------------
INT 15 - MultiDOS Plus 4.01 - SET CONTEXT-SWITCH FUNCTIONS
AX = 1E08h
DX:BX -> context save handler (see #0384)
DX:CX -> context restore handler (see #0384)
Return: nothing
Note: handlers may be removed by setting addresses to 0000h:0000h
(Table 0384)
Values MultiDOS Plus context-switch handlers are called with:
ES:BX -> task's TCB
Return: all registers preserved
--------T-151F-------------------------------
INT 15 - VMiX v2.???+ - "sys_scrollwin" - SCROLL WINDOW
AH = 1Fh
STACK: WORD top left corner of window (high byte = row, low = col)
WORD bottom right corner of window
Return: AX = status (SYS_OK)
SeeAlso: AH=14h"VMiX",AH=18h"VMiX"
--------T-151F-------------------------------
INT 15 - MultiDOS Plus v4.01 - 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
--------T-1520-------------------------------
INT 15 - MultiDOS Plus v4.01 - 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"
--------c-152000-----------------------------
INT 15 U - DOS 3.0+ PRINT.COM - DISABLE CRITICAL REGION FLAG
AX = 2000h
Return: nothing
Desc: stop setting user flag on entry to PRINT critical region
Note: also supported by PC Network v1.00 RECEIVER.COM
SeeAlso: AX=2001h
--------c-152001-----------------------------
INT 15 U - DOS 3.0+ PRINT.COM - SET CRITICAL REGION FLAG
AX = 2001h
ES:BX -> byte which is to be incremented while in a DOS call
Return: nothing
Desc: specify a user flag which PRINT should set to let an interested
application know it is in a critical region
Note: also supported by PC Network v1.00 RECEIVER.COM
SeeAlso: AX=2000h
--------O-152010-----------------------------
INT 15 - OS HOOK - SETUP SYSREQ ROUTINE (AT,XT286,PS50+)
AX = 2010h
???
Return: ???
SeeAlso: AX=2011h
--------O-152011-----------------------------
INT 15 - OS HOOK - COMPLETION OF SYSREQ FUNCTION (AT,XT286,PS50+)
AX = 2011h
???
Return: ???
SeeAlso: AX=2010h
--------B-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 clear if successful
CF set on error
AH = status
00h OK
01h list full
02h unsupported subfunction
80h invalid command
86h unsupported function
if function 00h:
BX = number of error codes stored
ES:DI -> error log
Notes: the log is a series of words, the first byte of which identifies the
error code and the second the device.
supported by AMI PCI BIOS
IBM considers this a required BIOS function
if the device ID is FFh, the "error code" is the actual device number
minus 255 (thus these devices have no specific error codes)
SeeAlso: AH=23h"SYSTEM",AH=24h"SYSTEM"
--------B-1522-------------------------------
INT 15 - SYSTEM - later PS/2s - LOCATE ROM BASIC
AH = 22h
Return: CF set on error
AH = status (86h if function not supported)
CF clear on success
AH = 00h
ES:BX -> ROM BASIC
Notes: if this function is not supported, ROM BASIC is at F600h:0000h
IBM classifies this function as optional
SeeAlso: INT 86"BASIC",INT F0"BASIC"
--------B-152300-----------------------------
INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET ??? CMOS DATA
AX = 2300h
Return: CF clear if successful
CL = value of CMOS location 2Dh
CH = value of CMOS location 2Eh
CF set on error
AH = error code (80h,86h)
Note: IBM classifies this function as optional
SeeAlso: AX=2301h,AX=2304h,AX=2305h
--------B-152301-----------------------------
INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - SET ??? CMOS DATA
AX = 2301h
CL = new value for CMOS location 2Dh
CH = new value for CMOS location 2Eh
Return: CF clear if successful
CF set on error
AH = error code (80h,86h)
Notes: sets the contents of CMOS locations 2Dh and 2Eh
IBM classifies this function as optional
SeeAlso: AX=2300h,AX=2304h,AX=2305h
--------B-152302-----------------------------
INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET ROM STARTUP VIDEO REG TABLES
AX = 2302h
BL = data index (00h-0Dh) (see #0385)
Return: ES:BX -> table for register (see #0386,#0387)
CX = size of table in bytes (may be 0000h)
Note: IBM classifies this function as optional
SeeAlso: AX=2300h,AX=2301h,AX=2303h
(Table 0385)
Values for PS/1 ROM startup video register tables:
00h DAC registers
01h ???
02h Palette registers
03h-0Dh ???
Format of PS/1 ROM startup DAC register table:
Offset Size Description (Table 0386)
00h WORD number of DAC registers in table
02h var array of 3-byte DAC register values, starting at register 00h
SeeAlso: #0385
Format of PS/1 ROM startup Palette register table:
Offset Size Description (Table 0387)
00h 16 BYTEs colors for palette registers 00h through 0Fh
10h BYTE border color
SeeAlso: #0385,#0017
--------B-152303-----------------------------
INT 15 U - IBM BIOS - SMART ENERGY SYSTEM - ???
AX = 2303h
BX = ??? ('x')
DX = 'y' and 'z'
bits 15-7 = 'y'
bits 6-3 unused
bits 2-0 = 'z'
DI = ??? (0352h)
Return: ???
Notes: performs graphics functions, writes to segment A000h and VGA I/O ports
IBM classifies this function as optional
--------B-152304-----------------------------
INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - SYSTEM SETUP
AX = 2304h
DX = segment of 32K buffer
Return: CF clear if successful
AX = 0003h (left over from setting video mode 3)
BX,CX,DX,BP,DS,ES destroyed
CF set on error
AH = error code (80h,86h)
Desc: run system setup utility, and optionally save any changed settings to
CMOS RAM
Note: IBM classifies this function as optional
SeeAlso: AX=2301h,AX=2305h
--------B-152305-----------------------------
INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET PROCESSOR SPEED
AX = 2305h
Return: CF clear if successful
AL = processor speed in MHz
CF set on error
AL = FFh (speed unknown or >80 MHz)
AL = error code (80h,86h = unsupported function)
Note: IBM classifies this function as optional
SeeAlso: AX=2301h,AX=2304h,AH=BCh
--------b-152400-----------------------------
INT 15 - SYSTEM - later PS/2s - DISABLE A20 GATE
AX = 2400h
Return: CF clear if successful
AH = 00h
CF set on error
AH = status
01h keyboard controller is in secure mode
86h function not supported
Notes: also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
IBM classifies this function as optional
BUG: AMI BIOS v1.00.03.AV0M never reports an error on failure to disable
the A20 gate; it simply writes 0 to PORT 0092h
SeeAlso: AX=2401h,AX=2402h,AX=2403h,PORT 0092h
--------b-152401-----------------------------
INT 15 - SYSTEM - later PS/2s - ENABLE A20 GATE
AX = 2401h
Return: CF clear if successful
AH = 00h
CF set on error
AH = status
01h keyboard controller is in secure mode
86h function not supported
Notes: also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
IBM classifies this function as optional
SeeAlso: AX=2400h,AX=2402h,PORT 0092h
--------b-152402-----------------------------
INT 15 - SYSTEM - later PS/2s - GET A20 GATE STATUS
AX = 2402h
Return: CF clear if successful
AH = 00h
AL = current state (00h disabled, 01h enabled)
CX = ??? (set to 0000h-000Bh or FFFFh by AMI BIOS v1.00.03.AV0M)
FFFFh if keyboard controller does not become ready within C000h
read attempts
CF set on error
AH = status
01h keyboard controller is in secure mode
86h function not supported
Notes: also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
IBM classifies this function as optional
SeeAlso: AX=2400h,AX=2401h
--------b-152403-----------------------------
INT 15 - SYSTEM - later PS/2s - QUERY A20 GATE SUPPORT
AX = 2403h
Return: CF clear if successful
AH = 00h
BX = status of A20 gate support (see #0388)
CF set on error
AH = status
01h keyboard controller is in secure mode
86h function not supported
Notes: also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
IBM classifies this function as optional
BUG: at one point early in processing INT 15/AH=24h, the AMI PCI BIOS
version 1.00.05.AX1 compares whether AL==03h instead of AL>=03h,
thus causing a random branch on any value of AL greater than 3.
SeeAlso: AX=2402h
Bitfields for A20 gate support status:
Bit(s) Description (Table 0388)
0 supported on keyboard controller
1 supported with bit 1 of I/O port 92h
14-2 reserved
15 additional data is available (location not yet defined)
--------T-153000-----------------------------
INT 15 - Object Kernel for DOS - INSTALLATION CHECK
AX = 3000h
Return: AX:BX = 4F42h:4A21h ('OBJ!') if installed
CX = resident segment
Program: the Object Kernel is a program by M.W. Pieters which is currently
under development
Note: Central Point's CPBACKUP v9 calls INT 15/AX=3000h at startup, but it
may be checking for a different program's presence
SeeAlso: AX=3001h,AX=3008h
--------T-153001-----------------------------
INT 15 - Object Kernel for DOS - GET STATUS BLOCK
AX = 3001h
Return: AX = FFFFh
ES:DI -> status block
SeeAlso: AX=3000h,AX=3008h
--------T-153002-----------------------------
INT 15 - Object Kernel for DOS - KILL PROCESS
AX = 3002h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153003-----------------------------
INT 15 - Object Kernel for DOS - STOP PROCESS
AX = 3003h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153004-----------------------------
INT 15 - Object Kernel for DOS - START PROCESS
AX = 3004h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153005-----------------------------
INT 15 - Object Kernel for DOS - RESTART PROCESS
AX = 3005h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153006-----------------------------
INT 15 - Object Kernel for DOS - EXECUTE PROCESS
AX = 3006h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153007-----------------------------
INT 15 - Object Kernel for DOS - LIST PROCESSES
AX = 3007h
(not yet implemented)
SeeAlso: AX=3000h
--------T-153008-----------------------------
INT 15 - Object Kernel for DOS - SWITCH ObjectKernel ON/OFF
AX = 3008h
BH = new state (00h disabled, 01h enabled)
Return: AX = FFFFh
SeeAlso: AX=3000h,AX=3009h
--------T-153009-----------------------------
INT 15 - Object Kernel for DOS - RESERVED FOR FUTURE USE
AX = 3009h to 30FFh
SeeAlso: AX=3000h
Program: the Object Kernel is a program by M.W. Pieters which is currently
under development
----------153D-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 3Dh
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
----------153E-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 3Eh
SeeAlso: AH=3Dh"IBM",AH=3Fh"IBM"
----------153F-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 3Fh
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
--------B-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
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (80h = profile execution failed)
--------V-154000-----------------------------
INT 15 - Compaq SLT/286 or Portable 386 - READ LCD/PLASMA TIMEOUT
AX = 4000h
Return: AX = 4000h
CL = timeout in minutes, 00h if disabled
SeeAlso: AX=4001h,AX=4600h
--------V-154001-----------------------------
INT 15 - Compaq SLT/286 or Portable 386 - SET LCD/PLASMA TIMEOUT
AX = 4001h
CL = timeout in minutes, 00h to disable
Return: AL = status
00h timeout modified
01h timeout cannot be modified
40h timeout cannot be modified
CL = timeout in minutes, 00h if disabled
SeeAlso: AX=4000h,AX=4601h
--------B-1541-------------------------------
INT 15 - SYSTEM - WAIT ON EXTERNAL EVENT (CONVERTIBLE and some others)
AH = 41h
AL = condition type (see #0389)
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
Return: after event or timeout occurs
Note: call AH=C0h and examine bit 3 of feature byte 1 to determine whether
this function is supported
SeeAlso: AH=83h,AH=86h,AH=C0h
Bitfields for external event wait condition type:
Bit(s) Description (Table 0389)
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
3 reserved
4 1=port address, 0=user byte
5-7 reserved
--------B-1542-------------------------------
INT 15 - SYSTEM - REQUEST POWER OFF (CONVERTIBLE,HP 95LX)
AH = 42h
AL = suspend type
00h to use system profile
01h to force suspend regardless of system profile
Return: nothing
Note: the HP 95LX apparently suspends regardless of the value in AL; on
power-up, execution will resume following the instruction calling
this function
SeeAlso: AH=44h
--------b-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,AX=5307h/CX=0001h"STAND-BY"
--------B-1543-------------------------------
INT 15 - SYSTEM - READ SYSTEM STATUS (CONVERTIBLE)
AH = 43h
Return: AL = status bits (see #0390)
Bitfields for Convertible system status:
Bit(s) Description (Table 0390)
7 power low
6 external power in use
5 standby power lost
4 power activated by alarm
3 internal modem powered on
2 RS232/parallel adapter powered on
1 reserved
0 LCD detached
--------B-1544-------------------------------
INT 15 - SYSTEM - (DE)ACTIVATE INTERNAL MODEM POWER (CONVERTIBLE)
AH = 44h
AL = new modem power state (00h power off, 01h power on)
Return: nothing
SeeAlso: AH=42h
--------b-1544C0-----------------------------
INT 15 - Olivetti Quaderno - INITIALIZE DIGITAL SIGNAL PROCESSING???
AX = 44C0h
ES:DI -> new DSP procedure (exchanged with CMOS[28h])
ES:SI -> ??? buffer
Return: ES:DI -> old DSP procedure
ES:SI buffer filled with ten bytes from CMOS (addresses 14h-1Ch)
followed by 00h (addresses 15h-1Ch copied only if less than 21h)
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C1-----------------------------
INT 15 - Olivetti Quaderno - ???
AX = 44C1h
???
Return: ???
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C2-----------------------------
INT 15 - Olivetti Quaderno - ???
AX = 44C2h
DL = byte to be written to I/O port 350h
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C3h,AX=44C9h
--------b-1544C3-----------------------------
INT 15 - Olivetti Quaderno - GET ???
AX = 44C3h
Return: DH = bitfields (see #0391)
DL = value read from I/O port 350h
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C2h,AX=44C9h
Bitfields for Olivetti Quaderno ???:
Bit(s) Description (Table 0391)
5-7 5-7 read from I/O port 351h
2-4 zero
1-0 "tres complique"
--------b-1544C4-----------------------------
INT 15 - Olivetti Quaderno - ???
AX = 44C4h and 44C5h
???
Return: ???
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C6-----------------------------
INT 15 - Olivetti Quaderno - READ LCD
AX = 44C6h
Return: DX = FFFFh clock is displayed on LCD display
DX = other: hex number displayed in first four positions of display
BH = left alphanumeric character on display (see #0392)
BL = right alphanumeric character on display (see #0392)
CL = colon flags (see #0393)
Notes: the LCD display has the format HH:HH:AA, where H is a hex digit and A
is an alphanumeric character
this function is also supported by XBIOS.COM
SeeAlso: AX=44C7h,AX=44C9h
(Table 0392)
Values for Olivetti Quaderno LCD alphanumeric characters:
00h-0Fh hex digit
2Bh "+"
2Dh "-"
30h-39h "0" to "9"
41h-5Ah "A" to "Z"
61h-6Ah "a" to "z"
else blank
Bitfields for Olivetti Quaderno LCD colon flags:
Bit(s) Description (Table 0393)
0 left colon on
1 right colon on
2-7 unused
--------b-1544C7-----------------------------
INT 15 - Olivetti Quaderno - WRITE LCD
AX = 44C7h
DX = hex display
FFFFh display clock and "HI", "Md", or "Lo"
BH,BL,CL unused
other: display specified hex number in first four positions
BH = left alphanumeric character on display (see #0392)
BL = right alphanumeric character on display (see #0392)
CL = colon flags (see #0393)
Return: nothing
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C6h
--------b-1544C8-----------------------------
INT 15 - Olivetti Quaderno - ???
AX = 44C8h
CL = ??? (00h,02h,21h)
CH = ???
???
Return: ???
Note: this function is also supported by XBIOS.COM
SeeAlso: AX=44C9h
--------b-1544C9-----------------------------
INT 15 - Olivetti Quaderno - GET XBIOS VERSION
AX = 44C9h
Return: AL = major version
AH = minor version
Note: this function is also supported by XBIOS.COM
--------B-1544F1-----------------------------
INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
AX = 44F1h
DS:DX -> byte with 00h ???
Return: ???
Note: used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
between USER and SUPERVISOR security level
SeeAlso: AX=44F2h,AX=44F3h
--------B-1544F2BX0604-----------------------
INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
AX = 44F2h
BX = 0604h ???
Return: CF = ???
AH = ???
DX = ???
Note: used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
between USER and SUPERVISOR security level
SeeAlso: AX=44F1h,AX=44F3h
--------B-1544F3-----------------------------
INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
AX = 44F3h
DS:DX -> byte with 00h or 01h ???
Return: DS:DX -> changed ???
Note: used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
between USER and SUPERVISOR security level
SeeAlso: AX=44F1h,AX=44F2h
--------b-1545-------------------------------
INT 15 U - HP 100LX/200LX - SET DISPLAY CONTROL STATUS
AH = 45h
AL = new display control status
bit 0: DISPCTL flag +C instead of -C
bit 1: DISPCTL flag +K instead of -K
SeeAlso: AH=46h"HP",AH=47h"HP"
--------b-1546-------------------------------
INT 15 U - HP 100LX/200LX - SET POWER OFF TIMEOUT
AH = 46h
BX = timeout value in ticks
0000h inhibit auto power off
Note: the 200LX default timeout is 0CCDh = 3277 ticks = approx. 3 min.
SeeAlso: AH=45h"HP",AH=47h"HP"
--------b-154600-----------------------------
INT 15 - Compaq SLT/286 - READ POWER CONSERVATION/MODEM CONFIGURATION
AX = 4600h
Return: AH = modem configuration information (see #0394)
AL = power conservation status information (see #0395)
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
Bitfields for Compaq SLT/286 modem configuration information:
Bit(s) Description (Table 0394)
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
Bitfields for Compaq SLT/286 power conservation status:
Bit(s) Description (Table 0395)
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
--------b-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 = new modem state (00h turn off, 01h turn on, FFh don't change)
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 = modem state (FFh unchanged, 00h turned off, 01h turned on)
CF set on error
AH = error code
01h input is out of range
02h no modem present
SeeAlso: AX=4600h,INT 77
--------b-154604-----------------------------
INT 15 - Compaq Contura 486 and "Alladin" 08/05/93 ROMs - GET ???
AX = 4604h
Return: CF clear if successful
AL = byte read from I/O port 03F8h
CF set on error (not supported)
AH = 86h (unsupported function)
Note: also supported by 7/26/93 LTE Lite 386 ROM
--------b-154605-----------------------------
INT 15 - Compaq Contura 486 and "Alladin" 08/05/93 ROMs - ???
AX = 4605h
Return: CF clear if successful
CF set on error (not supported)
AH = 86h (unsupported function)
Note: this function is a NOP (other than clearing CF) in the 08/05/93 version
of the Contura 486/486c/486cx and "Aladdin" ROM, and the 7/26/93
LTE Lite 386 ROM
--------b-1547-------------------------------
INT 15 U - HP 100LX/200LX - GET/SET DISPLAY CONTRAST
AH = 47h
AL = subfunction
00h set contrast
BL = new contrast
(00h-0Fh, 0Fh is darkest, 10h-FFh are same as 0Fh)
other get current contrast
Return: AL = contrast (00h-0Fh, 0Fh is darkest)
Note: may be for backward compatibility with HP95LX, as INT 15/AH=62h does
substantially the same thing as this function
SeeAlso: AH=45h"HP",AH=48h"HP",AH=62h"HP"
--------b-1548-------------------------------
INT 15 U - HP 100LX/200LX - SET BUZZER VOLUME
AH = 48h
AL = volume (00h-03h; 03h is loudest, 04h-FFh are same as 03h)
SeeAlso: AH=47h"HP"
--------S-1549-------------------------------
INT 15 U - HP 100LX/200LX - SERIAL INTERFACE SELECT
AH = 49h
AL = serial interface
00h wired (COM1)
01h infrared
Note: interface should only be changed in deactivated state (see AH=4Ah)
SeeAlso: AH=4Ah"HP"
--------J-154900-----------------------------
INT 15 - Far East MS-DOS - GET BIOS TYPE
AX = 4900h
Return: CF clear if successful
AH = 00h
BL = BIOS mode
00h DOS/V
01h standard DBCS DOS (hardware DBCS support)
CF set on error
AH = 86h (function not supported)
Note: in practice, DOS/J returns AH=86h; AX DOS does not support this call
SeeAlso: AH=50h,INT 21/AH=30h
--------S-154A-------------------------------
INT 15 U - HP 100LX/200LX - SERIAL INTERFACE CONTROL
AH = 4Ah
AL = control
00h deactivate
01h activate
Note: interface selected with AH=49h will be (de)activated
SeeAlso: AH=49h"HP",AH=4Bh"HP"
--------b-154B-------------------------------
INT 15 U - HP 100LX/200LX - ADJUST SYSTEM TIME
AH = 4Bh
Desc: adjust system time based on real-time clock
SeeAlso: AH=4Ah"HP",INT 1A/AH=02h,INT 21/AH=2Ch
--------b-154DD4-----------------------------
INT 15 - HP 95LX/100LX/200LX - INSTALLATION CHECK
AX = 4DD4h
Return: BX = 4850h ("HP") if HP 95LX/100LX/200LX
CX = model
0101h HP 95LX
0102h HP 100LX/200LX
DH = ???
02h HP 200LX 2MB BIOS 1.01 A D german
DL = ???
00h HP 95LX
01h HP 200LX 2MB BIOS 1.01 A D german
SeeAlso: INT 0B"HP 95LX",INT 0F"HP 95LX",INT 5F/AH=00h,INT 60/DI=0100h
SeeAlso: INT 61"HP 95LX"
--------b-154E-------------------------------
INT 15 - HP 95LX - ENABLE/DISABLE LIGHT SLEEP
AH = 4Eh
AL = light sleep
00h disabled
01h enabled
Note: when light sleep is disabled, the system will continue running at full
speed; when enabled, it may automatically slow to conserve batteries
SeeAlso: INT 06"HP 95LX",INT 60/DI=0100h
----------154E-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 4Eh
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
--------B-154F-------------------------------
INT 15 C - KEYBOARD - KEYBOARD INTERCEPT (AT model 3x9,XT2,XT286,CONV,PS)
AH = 4Fh
AL = hardware scan code (see #0005)
CF set
Return: CF set to continue processing scan code
AL = possibly-altered hardware scan code (see #0005)
CF clear
scan code should be ignored
Notes: called by INT 09 handler to translate scan codes; the INT 09 code does
not examine the scan code it reads from the keyboard until after
this function returns. This permits software to rearrange the
keyboard; for example, swapping the CapsLock and Control keys, or
turning the right Shift key into Enter.
DOS 6 KEYB.COM will not pass through this function if Ctrl-Alt-Del is
pressed and a SmartDrive v4-compatible cache is installed which has
dirty cache buffers; some other disk caches such as HyperDisk
operate similarly in order to prevent loss of cached data which has
not yet been written to disk
IBM classifies this function as required
SeeAlso: INT 09,INT 15/AH=C0h
--------J-1550-------------------------------
INT 15 - DOS/V - FONT SUBSYSTEM ACCESS
AH = 50h
AL = which function address to retrieve
00h "read font" function
01h "write font" function
BL = 00h
BH = character size (00h single-byte, 01h double-byte)
DH = width of character cell
DL = height of character cell
BP = code page (see #0396)
Return: CF clear if successful
AH = 00h
ES:BX -> requested function's address
CF set on error
AH = error code (see #0397)
SeeAlso: AH=49h
(Table 0396)
Values for DOS/V code page:
0 default
437 US English
932 Japanese
934 Korea
936 China
938 Taiwan
SeeAlso: #1446
(Table 0397)
Values for DOS/V error code:
01h invalid font type in BH
02h BL not zero
03h invalid font size
04h invalid code page
80h unsupported function (PC)
86h unsupported function (XT)
SeeAlso: #1366
--------T-1550-------------------------------
INT 15 - VMIX v2.???+ - "sys_vm_page" - SET NEW VIRTUAL PAGE TABLE
AH = 50h
BX = segment of page directory table
CX = page number of page table
SeeAlso: AH=10h"VMiX",AH=51h"VMiX",AH=52h"VMiX"
--------T-1551-------------------------------
INT 15 - VMiX v2.???+ - "sys_vm_func" - EXECUTE FUNCTION IN PROTECTED MODE
AH = 51h
STACK: DWORD selector:offset of function
Return: registers as returned by function
Note: executes function with privilege level 0 (highest privilege)
SeeAlso: AH=10h"VMiX",AH=52h"VMiX"
--------B-155101-----------------------------
INT 15 - SYSTEM - later PS/2s - EXPANSION UNIT, RETURN CONFIGURATION NUMBER
AX = 5101h
Return: CF set if successful
AH = 00h
AL = current configuration number
00h system unit only
FFh configuration not recognized
BX = status flag
bits 0-14: reserved
bit 15: additional data is available (location TBD)
CF clear on error
AH = status
01h expansion unit is not present
86h function not supported
Note: CF convention is the reverse of the standard convention for this
interrupt. (Perhaps a typo in the IBM BIOS Tech Ref?)
--------T-1552-------------------------------
INT 15 - VMiX v2.???+ - "sys_vm_init" - INITIALIZE PROTECTED-MODE ENVIRONMENT
AH = 52h
SeeAlso: AH=50h"VMiX",AH=51h"VMiX"
--------d-1552-------------------------------
INT 15 C - IBM/MS INT 13 Extensions - MEDIA EJECT INTERCEPT
AH = 52h
DL = drive number
Return: CF clear if OK to eject media
AH = 00h
CF set if ejection disallowed
AH = error code (B1h,B3h) (see #0166)
Note: called by the IBM/MS INT 13 Extensions driver/BIOS when an ejection
request is made
SeeAlso: INT 13/AH=46h"INT 13 Extensions"
--------p-155300-----------------------------
INT 15 - Advanced Power Management v1.0+ - INSTALLATION CHECK
AX = 5300h
BX = device ID of system BIOS (0000h)
Return: CF clear if successful
AH = major version (BCD)
AL = minor version (BCD)
BX = 504Dh ("PM")
CX = flags (see #0398)
CF set on error
AH = error code (06h,09h,86h) (see #0399)
BUG: early versions of the Award Modular BIOS with built-in APM support
reportedly do not set BX on return
Bitfields for APM flags:
Bit(s) Description (Table 0398)
0 16-bit protected mode interface supported
1 32-bit protected mode interface supported
2 CPU idle call reduces processor speed
3 BIOS power management disabled
4 BIOS power management disengaged (APM v1.1)
5-7 reserved
(Table 0399)
Values for APM error code:
01h power management functionality disabled
02h interface connection already in effect
03h interface not connected
04h real-mode interface not connected
05h 16-bit protected-mode interface already connected
06h 16-bit protected-mode interface not supported
07h 32-bit protected-mode interface already connected
08h 32-bit protected-mode interface not supported
09h unrecognized device ID
0Ah invalid parameter value in CX
0Bh (APM v1.1) interface not engaged
0Ch (APM v1.2) function not supported
0Dh (APM v1.2) Resume Timer disabled
0Eh-1Fh reserved for other interface and general errors
20h-3Fh reserved for CPU errors
40h-5Fh reserved for device errors
60h can't enter requested state
61h-7Fh reserved for other system errors
80h no power management events pending
81h-85h reserved for other power management event errors
86h APM not present
87h-9Fh reserved for other power management event errors
A0h-FEh reserved
FFh undefined
--------p-155301-----------------------------
INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE
AX = 5301h
BX = device ID of system BIOS (0000h)
Return: CF clear if successful
CF set on error
AH = error code (02h,05h,07h,09h) (see #0399)
Note: on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
compatibility mode until it is informed that the user supports a
newer version of APM (see AX=530Eh)
SeeAlso: AX=5302h,AX=5303h,AX=5304h
--------p-155302-----------------------------
INT 15 R - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE
AX = 5302h
BX = device ID of system BIOS (0000h)
Return: CF clear if successful
AX = real-mode segment base address of protected-mode 16-bit code
segment
BX = offset of entry point
CX = real-mode segment base address of protected-mode 16-bit data
segment
---APM v1.1---
SI = APM BIOS code segment length
DI = APM BIOS data segment length
CF set on error
AH = error code (02h,05h,06h,07h,09h) (see #0399)
Notes: the caller must initialize two consecutive descriptors with the
returned segment base addresses; these descriptors must be valid
whenever the protected-mode interface is called, and will have
their limits arbitrarily set to 64K.
the protected mode interface is invoked by making a far call with the
same register values as for INT 15; it must be invoked while CPL=0,
the code segment descriptor must have a DPL of 0, the stack must be
in a 16-bit segment and have enough room for BIOS use and possible
interrupts, and the current I/O permission bit map must allow access
to the I/O ports used for power management.
functions 00h-03h are not available from protected mode
on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
compatibility mode until it is informed that the user supports a
newer version of APM (see AX=530Eh)
SeeAlso: AX=5301h,AX=5303h,AX=5304h
--------p-155303-----------------------------
INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE
AX = 5303h
BX = device ID of system BIOS (0000h)
Return: CF clear if successful
AX = real-mode segment base address of protected-mode 32-bit code
segment
EBX = offset of entry point
CX = real-mode segment base address of protected-mode 16-bit code
segment
DX = real-mode segment base address of protected-mode 16-bit data
segment
---APM v1.1---
SI = APM BIOS code segment length
DI = APM BIOS data segment length
CF set on error
AH = error code (02h,05h,07h,08h,09h) (see #0399)
Notes: the caller must initialize three consecutive descriptors with the
returned segment base addresses for 32-bit code, 16-bit code, and
16-bit data, respectively; these descriptors must be valid whenever
the protected-mode interface is called, and will have their limits
arbitrarily set to 64K.
the protected mode interface is invoked by making a far call to the
32-bit code segment with the same register values as for INT 15; it
must be invoked while CPL=0, the code segment descriptor must have a
DPL of 0, the stack must be in a 32-bit segment and have enough room
for BIOS use and possible interrupts, and the current I/O permission
bit map must allow access to the I/O ports used for power management.
functions 00h-03h are not available from protected mode
on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
compatibility mode until it is informed that the user supports a
newer version of APM (see AX=530Eh)
SeeAlso: AX=5301h,AX=5302h,AX=5304h
--------p-155304-----------------------------
INT 15 - Advanced Power Management v1.0+ - DISCONNECT INTERFACE
AX = 5304h
BX = device ID of system BIOS (0000h)
Return: CF clear if successful
CF set on error
AH = error code (03h,09h) (see #0399)
SeeAlso: AX=5301h,AX=5302h,AX=5303h
--------p-155305-----------------------------
INT 15 - Advanced Power Management v1.0+ - CPU IDLE
AX = 5305h
Return: CF clear if successful (after system leaves idle state)
CF set on error
AH = error code (03h,0Bh) (see #0399)
Notes: call when the system is idle and should be suspended until the next
system event or interrupt
should not be called from within a hardware interrupt handler to avoid
reentrance problems
if an interrupt causes the system to resume normal processing, the
interrupt may or may not have been handled when the BIOS returns
from this call; thus, the caller should allow interrupts on return
interrupt handlers may not retain control if the BIOS allows
interrupts while in idle mode even if they are able to determine
that they were called from idle mode
the caller should issue this call continuously in a loop until it needs
to perform some processing of its own
SeeAlso: AX=1000h,AX=5306h,INT 2F/AX=1680h
--------p-155306-----------------------------
INT 15 - Advanced Power Management v1.0+ - CPU BUSY
AX = 5306h
Return: CF clear if successful
CF set on error
AH = error code (03h,0Bh) (see #0399)
Notes: called to ensure that the system runs at full speed even on systems
where the BIOS is unable to recognize increased activity (especially
if interrupts are hooked by other programs and not chained to the
BIOS)
this call may be made even when the system is already running at full
speed, but it will create unnecessary overhead
should not be called from within a hardware interrupt handler to avoid
reentrance problems
SeeAlso: AX=5305h
--------p-155307-----------------------------
INT 15 - Advanced Power Management v1.0+ - SET POWER STATE
AX = 5307h
BX = device ID (see #0400)
CX = system state ID (see #0401)
Return: CF clear if successful
CF set on error
AH = error code (01h,03h,09h,0Ah,0Bh,60h) (see #0399)
Note: should not be called from within a hardware interrupt handler to avoid
reentrance problems
SeeAlso: AX=530Ch
(Table 0400)
Values for APM device IDs:
0000h system BIOS
0001h all devices for which the system BIOS manages power
01xxh display (01FFh for all attached display devices)
02xxh secondary storage (02FFh for all attached secondary storage devices)
03xxh parallel ports (03FFh for all attached parallel ports)
04xxh serial ports (04FFh for all attached serial ports)
---APM v1.1+ ---
05xxh network adapters (05FFh for all attached network adapters)
06xxh PCMCIA sockets (06FFh for all)
0700h-7FFFh reserved
80xxh system battery devices (APM v1.2)
8100h-DFFFh reserved
Exxxh OEM-defined power device IDs
F000h-FFFFh reserved
(Table 0401)
Values for system state ID:
0000h ready (not supported for device ID 0001h)
0001h stand-by
0002h suspend
0003h off (not supported for device ID 0001h)
---APM v1.1---
0004h last request processing notification (only for device ID 0001h)
0005h last request rejected (only for device ID 0001h)
0006h-001Fh reserved system states
0020h-003Fh OEM-defined system states
0040h-007Fh OEM-defined device states
0080h-FFFFh reserved device states
--------p-155307CX0001-----------------------
INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY
AX = 5307h
CX = 0001h
BX = 0001h (device ID for all power-managed devices)
Return: CF clear
Notes: puts the entire system into stand-by mode; normally called in response
to a System Stand-by Request notification after any necessary
processing, but may also be invoked at the caller's discretion
should not be called from within a hardware interrupt handler to avoid
reentrance problems
the stand-by state is typically exited on an interrupt
SeeAlso: AX=4280h,AX=5307h/CX=0002h"SUSPEND",AX=530Bh
--------p-155307CX0002-----------------------
INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM
AX = 5307h
CX = 0002h
BX = 0001h (device ID for all power-managed devices)
Return: after system is resumed
CF clear
Notes: puts the entire system into a low-power suspended state; normally
called in response to a Suspend System Request notification after
any necessary processing, but may also be invoked at the caller's
discretion
should not be called from within a hardware interrupt handler to avoid
reentrance problems
the caller may need to update its date and time values because the
system could have been suspended for a long period of time
SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh
--------p-155308-----------------------------
INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT
AX = 5308h
BX = device ID for all devices power-managed by APM
0001h (APM v1.1+)
FFFFh (APM v1.0)
CX = new state
0000h disabled
0001h enabled
Return: CF clear if successful
CF set on error
AH = error code (01h,03h,09h,0Ah,0Bh) (see #0399)
Notes: when power management is disabled, the system BIOS will not
automatically power down devices, enter stand-by or suspended mode,
or perform any power-saving actions in response to AX=5305h calls
should not be called from within a hardware interrupt handler to avoid
reentrance problems
the APM BIOS should never be both disabled and disengaged at the same
time
SeeAlso: AX=5309h,AX=530Dh,AX=530Fh
--------p-155309-----------------------------
INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS
AX = 5309h
BX = device ID for all devices power-managed by APM
0001h (APM v1.1)
FFFFh (APM v1.0)
Return: CF clear if successful
CF set on error
AH = error code (03h,09h,0Bh) (see #0399)
Note: should not be called from within a hardware interrupt handler to avoid
reentrance problems
SeeAlso: AX=5308h
--------p-15530A-----------------------------
INT 15 - Advanced Power Management v1.0+ - GET POWER STATUS
AX = 530Ah
BX = device ID
0001h all devices power-managed by APM
80xxh specific battery unit number XXh (01h-FFh) (APM v1.2)
Return: CF clear if successful
BH = AC line status
00h off-line
01h on-line
02h on backup power (APM v1.1)
FFh unknown
other reserved
BL = battery status (see #0402)
CH = battery flag (APM v1.1+) (see #0403)
CL = remaining battery life, percentage
00h-64h (0-100) percentage of full charge
FFh unknown
DX = remaining battery life, time (APM v1.1) (see #0404)
---if specific battery unit specified---
SI = number of battery units currently installed
CF set on error
AH = error code (09h,0Ah) (see #0399)
Notes: should not be called from within a hardware interrupt handler to avoid
reentrance problems
supported in real mode (INT 15) and both 16-bit and 32-bit protected
mode
(Table 0402)
Values for APM v1.0+ battery status:
00h high
01h low
02h critical
03h charging
FFh unknown
other reserved
SeeAlso: #0403,#0404
Bitfields for APM v1.1+ battery flag:
Bit(s) Description (Table 0403)
0 high
1 low
2 critical
3 charging
4 selected battery not present (APM v1.2)
5-6 reserved (0)
7 no system battery
Note: all bits set (FFh) if unknown
SeeAlso: #0402,#0404
Bitfields for APM v1.1+ remaining battery life:
Bit(s) Description (Table 0404)
15 time units: 0=seconds, 1=minutes
14-0 battery life in minutes or seconds
Note: all bits set (FFFFh) if unknown
SeeAlso: #0402,#0403
--------p-15530B-----------------------------
INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT
AX = 530Bh
Return: CF clear if successful
BX = event code (see #0405)
CX = event information (APM v1.2) if BX=0003h or BX=0004h
bit 0: PCMCIA socket was powered down in suspend state
CF set on error
AH = error code (03h,0Bh,80h) (see #0399)
Notes: although power management events are often asynchronous, notification
will not be made until polled via this call to permit software to
only receive event notification when it is prepared to process
power management events; since these events are not very time-
critical, it should be sufficient to poll once or twice per second
the critical resume notification is made after the system resumes
from an emergency suspension; normally, the system BIOS only notifies
its partner that it wishes to suspend and relies on the partner to
actually request the suspension, but no notification is made on an
emergency suspension
should not be called from within a hardware interrupt handler to avoid
reentrance problems
SeeAlso: AX=5307h,AX=5307h/CX=0001h"STAND-BY",AX=5307h/CX=0002h"SUSPEND"
(Table 0405)
Values for APM event code:
0001h system stand-by request
0002h system suspend request
0003h normal resume system notification
0004h critical resume system notification
0005h battery low notification
---APM v1.1---
0006h power status change notification
0007h update time notification
0008h critical system suspend notification
0009h user system standby request notification
000Ah user system suspend request notification
000Bh system standby resume notification
---APM v1.2---
000Ch capabilities change notification (see AX=5310h)
------
000Dh-00FFh reserved system events
01xxh reserved device events
02xxh OEM-defined APM events
0300h-FFFFh reserved
--------p-15530C-----------------------------
INT 15 - Advanced Power Management v1.1+ - GET POWER STATE
AX = 530Ch
BX = device ID (see #0400)
Return: CF clear if successful
CX = system state ID (see #0401)
CF set on error
AH = error code (01h,09h) (see #0399)
SeeAlso: AX=5307h
--------p-15530D-----------------------------
INT 15 - Advanced Power Management v1.1+ - EN/DISABLE DEVICE POWER MANAGEMENT
AX = 530Dh
BX = device ID (see #0400)
CX = function
0000h disable power management
0001h enable power management
Return: CF clear if successful
CF set on error
AH = error code (01h,03h,09h,0Ah,0Bh) (see #0399)
Desc: specify whether automatic power management should be active for a
given device
SeeAlso: AX=5308h,AX=530Fh
--------p-15530E-----------------------------
INT 15 - Advanced Power Management v1.1+ - DRIVER VERSION
AX = 530Eh
BX = device ID of system BIOS (0000h)
CH = APM driver major version (BCD)
CL = APM driver minor version (BCD) (02h for APM v1.2)
Return: CF clear if successful
AH = APM connection major version (BCD)
AL = APM connection minor version (BCD)
CF set on error
AH = error code (03h,09h,0Bh) (see #0399)
SeeAlso: AX=5300h,AX=5303h
--------p-15530F-----------------------------
INT 15 - Advanced Power Management v1.1+ - ENGAGE/DISENGAGE POWER MANAGEMENT
AX = 530Fh
BX = device ID (see #0400)
CX = function
0000h disengage power management
0001h engage power management
Return: CF clear if successful
CF set on error
AH = error code (01h,09h) (see #0399)
Notes: unlike AX=5308h, this call does not affect the functioning of the APM
BIOS
when cooperative power management is disengaged, the APM BIOS performs
automatic power management of the system or device
SeeAlso: AX=5308h,AX=530Dh
--------p-155310-----------------------------
INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES
AX = 5310h
BX = device ID (see #0400)
0000h (APM BIOS)
other reserved
Return: CF clear if successful
BL = number of battery units supported (00h if no system batteries)
CX = capabilities flags (see #0406)
CF set on error
AH = error code (01h,09h,86h) (see #0399)
Notes: this function is supported via the INT 15, 16-bit protected mode, and
32-bit protected mode interfaces; it does not require that a
connection be established prior to use
this function will return the capabilities currently in effect, not
any new settings which have been made but do not take effect until
a system restart
SeeAlso: AX=5300h,AX=530Fh,AX=5311h,AX=5312h,AX=5313h
Bitfields for APM v1.2 capabilities flags:
Bit(s) Description (Table 0406)
0 can enter global standby state
1 can enter global suspend state
2 resume timer will wake up system from standby mode
3 resume timer will wake up system from suspend mode
4 Resume on Ring Indicator will wake up system from standby mode
5 Resume on Ring Indicator will wake up system from suspend mode
6 PCMCIA Ring Indicator will wake up system from standby mode
7 PCMCIA Ring Indicator will wake up system from suspend mode
--------p-155311-----------------------------
INT 15 - Advanced Power Management v1.2 - GET/SET/DISABLE RESUME TIMER
AX = 5311h
BX = device ID (see #0400)
0000h (APM BIOS)
other reserved
CL = function
00h disable Resume Timer
01h get Resume Timer
02h set Resume Timer
CH = resume time, seconds (BCD)
DL = resume time, minutes (BCD)
DH = resume time, hours (BCD)
SI = resume date (BCD), high byte = month, low byte = day
DI = resume date, year (BCD)
Return: CF clear if successful
---if getting timer---
CH = resume time, seconds (BCD)
DL = resume time, minutes (BCD)
DH = resume time, hours (BCD)
SI = resume date (BCD), high byte = month, low byte = day
DI = resume date, year (BCD)
CF set on error
AH = error code (03h,09h,0Ah,0Bh,0Ch,0Dh,86h) (see #0399)
Notes: this function is supported via the INT 15, 16-bit protected mode, and
32-bit protected mode interfaces
SeeAlso: AX=5300h,AX=5310h,AX=5312h,AX=5313h
--------p-155312-----------------------------
INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE RESUME ON RING
AX = 5312h
BX = device ID (see #0400)
0000h (APM BIOS)
other reserved
CL = function
00h disable Resume on Ring Indicator
01h enable Resume on Ring Indicator
02h get Resume on Ring Indicator status
Return: CF clear if successful
CX = resume status (0000h disabled, 0001h enabled)
CF set on error
AH = error code (03h,09h,0Ah,0Bh,0Ch,86h) (see #0399)
Notes: this function is supported via the INT 15, 16-bit protected mode, and
32-bit protected mode interfaces
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5313h
--------p-155313-----------------------------
INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE TIMER-BASED REQUESTS
AX = 5313h
BX = device ID (see #0400)
0000h (APM BIOS)
other reserved
CL = function
00h disable timer-based requests
01h enable timer-based requests
02h get timer-based requests status
Return: CF clear if successful
CX = timer-based requests status (0000h disabled, 0001h enabled)
CF set on error
AH = error code (03h,09h,0Ah,0Bh,86h) (see #0399)
Notes: this function is supported via the INT 15, 16-bit protected mode, and
32-bit protected mode interfaces
SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5312h
--------p-155380BH00-------------------------
INT 15 - APM SL Enhanced v1.0 - GET SUSPEND/GLOBAL STANDBY MODE
AX = 5380h
BH = 00h
Return: CF clear if successful
AL = 82360SL Auto Power Off Timer High Count (APWR_TMRH)
BL = sustdbymode (see #0407)
SeeAlso: AX=5380h/BH=01h,AX=5380h/BH=02h,AX=5380h/BH=7Fh
Bitfields for APM SL sustdbymode:
Bit(s) Description (Table 0407)
2 ???
1 Auto Power Off Timer Enable (APWR_TMR_EN)
0 ???
--------p-155380BH01-------------------------
INT 15 - APM SL Enhanced v1.0 - SET SUSPEND/GLOBAL STANDBY MODE
AX = 5380h
BH = 01h
BL = sustdbymode (see #0407)
Return: CF clear if successful
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
--------p-155380BH02-------------------------
INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER
AX = 5380h
BH = 02h
Return: CF clear if successful
SI:DI = timer count in seconds (actually 1.024 seconds)
Desc: reads the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=03h,AX=5380h/BH=04h,AX=5380h/BH=7Fh
--------p-155380BH03-------------------------
INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER
AX = 5380h
BH = 03h
SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc: sets the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
Note: the maximum timer count is 268431 seconds
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=7Fh
--------p-155380BH04-------------------------
INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER
AX = 5380h
BH = 04h
Return: CF clear if successful
SI:DI = timer count in seconds (actually 1.024 seconds)
Desc: reads the value of 82360SL APWR_TMRH & APWR_TMRL registers
SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=05h,AX=5380h/BH=06h,AX=5380h/BH=7Fh
--------p-155380BH05-------------------------
INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER
AX = 5380h
BH = 05h
SI:DI = timer count in seconds (actually 1.024 seconds)
Return: CF clear if successful
Desc: sets the value of 82360SL APWR_TMRH & APWR_TMRL registers
Note: the maximum timer count is 134213 seconds
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=7Fh
--------p-155380BH06-------------------------
INT 15 - APM SL Enhanced v1.0 - GET RESUME CONDITION
AX = 5380h
BH = 06h
Return: CF clear if successful
BL = resume condition (see #0408)
Desc: reads the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=07h,AX=5380h/BH=08h,AX=5380h/BH=7Fh
Bitfields for APM SL resume condition:
Bit(s) Description (Table 0408)
7-2 reserved (0)
1 alarm enabled (resume on CMOS alarm)
0 ring enabled
--------p-155380BH07-------------------------
INT 15 - APM SL Enhanced v1.0 - SET RESUME CONDITION
AX = 5380h
BH = 07h
BL = resume condition (see #0408)
Return: CF clear if successful
Desc: sets the value of 82360SL RESUME_MASK register
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=7Fh
--------p-155380BH08-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT TIME
AX = 5380h
BH = 08h
Return: CF clear if successful
CH = hours
CL = minutes
SI = seconds
CF set on error
AH = error code (see #0409)
Desc: gets calendar event time from CMOS ram
SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=09h,AX=5380h/BH=0Ah,AX=5380h/BH=7Fh
(Table 0409)
Values for APM SL error code:
02h no alarm set
03h no battery
--------p-155380BH09-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT TIME
AX = 5380h
BH = 09h
CH = hours
CL = minutes
SI = seconds
Return: CF clear if successful
CF set on error
AH = error code (see #0409)
Desc: sets calendar event time in CMOS ram, enables Alarm resume
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=7Fh
--------p-155380BH0A-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT DATE
AX = 5380h
BH = 0Ah
Return: CF clear if successful
SI = century
DI = year
CH = month
CL = day
CF set on error
AH = error code (see #0409)
Desc: reads calendar event date from Extended CMOS ram
SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=0Bh,AX=5380h/BH=0Ch,AX=5380h/BH=7Fh
--------p-155380BH0B-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT DATE
AX = 5380h
BH = 0Bh
SI = century
DI = year
CH = month
CL = day
Return: CF clear if successful
CF set on error
AH = error code (see #0409)
Desc: sets calendar event date in Extended CMOS ram
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=7Fh
--------p-155380BH0C-------------------------
INT 15 - APM SL Enhanced v1.0 - GET CPU SPEED MODE
AX = 5380h
BH = 0Ch
Return: CF clear if successful
CL = CPU clock divider (1,2,4 or 8)
BL = autocpumode ???
Desc: reads bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=0Dh,AX=5380h/BH=7Fh
--------p-155380BH0D-------------------------
INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE
AX = 5380h
BH = 0Dh
CL = CPU clock divider (1,2,4 or 8)
BL = autocpumode ???
Return: CF clear if successful
Desc: writes bits 4-5 of CPUPWRMODE register
SeeAlso: AX=5380h/BH=0Ch,AX=5380h/BH=7Eh,AX=5380h/BH=7Fh
--------p-155380BH7E-------------------------
INT 15 - APM SL Enhanced v1.0 - SL HW PARAMETER
AX = 5380h
BH = 7Eh
Return: AL = ???
03h on A-Step 386SL BIOSes
12h on later steps
BX = Control port (00B0h)
SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
--------p-155380BH7F-------------------------
INT 15 - Advanced Power Management v1.1 - OEM APM INSTALLATION CHECK
AX = 5380h
BH = 7Fh
Return: CF clear if successful
BX = OEM identifier
all other registers OEM-defined
---Intel SL Enhanced Option BIOS---
BX = 534Ch ('SL')
CL = 4Fh ('O')
AL = version (10h = 1.0)
---HP APM BIOS---
BX = 4850h ('HP')
CX = version (0001h)
CF set on error
AH = error code (03h) (see #0399)
SeeAlso: AX=5380h/BH=00h
--------p-155380-----------------------------
INT 15 - Advanced Power Management v1.1 - OEM APM FUNCTIONS
AX = 5380h
BH <> 7Fh
all other registers OEM-defined
Return: OEM-defined
SeeAlso: AX=5380h/BH=7Fh
--------X-1553B0BH00-------------------------
INT 15 - Intel System Management Bus - RESERVED
AX = 53B0h
BH = 00h
Program: the SMBus is a variant of ACCESS.bus being used by Intel and Duracell
for the Smart Battery proposal, but designed to be generic enough to
handle other devices besides batteries
--------X-1553B0BH01-------------------------
INT 15 - Intel System Management Bus - INSTALLATION CHECK
AX = 53B0h
BH = 01h
BL = 72h ('r')
CX = 6164h ('ad')
Return: CF clear if installed
AH = SMBus BIOS Interface Specification major version (01h)
AL = SMBus BIOS Interface Specification minor version (00h)
BL = number of SMBus devices present
CX = 6941h ('iA')
DX = vendor-specified SMBus hardware code
0000h means undefined hardware type
CF set if error
AH = Error code 0Ah, 86h (see #0410)
Note: this function is only supported in INT 15h mode
SeeAlso: AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=04h,AX=53B0h/BH=06h
SeeAlso: #3865 at INT 1A/AX=B10Ah/SF=8086h
(Table 0410)
Values for Intel System Management Bus error codes:
00h SMBus OK
01h SMBus connect failed
02h SMBus already connected (see also #0411)
03h SMBus disconnect failed
04h SMBus not connected
05h SMBus INT 15 interface disabled
06h SMBus device address request out of range
07h SMBus unknown failure
08h SMBus message list empty
09h SMBus message list overflow
0Ah SMBus invalid signature
10h SMBus device address not acknowledged
11h SMBus device error detected
12h SMBus device command access denied
13h SMBus unknown error
14h SMBus transaction pending
15h SMBus no transaction pending
16h SMBus request does not match pending transaction
17h SMBus device access denied
18h SMBus timeout
19h SMBus protocol not supported
1Ah SMBus busy
1Bh SMBus SMI detected
80h SMBus OK (previously unreported SMI occurred)
86h SMBus not supported
(Table 0411)
Values for Intel System Management Bus Already Connected sub-error codes:
01h real mode connect already established
02h 16-bit PMode connect already established
03h 32-bit PMode connect already established
SeeAlso: #0410
--------X-1553B0BH02-------------------------
INT 15 - Intel System Management Bus - REAL MODE CONNECT
AX = 53B0h
BH = 02h
CX = 6941h ('iA')
Return: CF clear if successful
AX = SMBus Real mode code segment
BX = offset of entry point into SMBus BIOS Interface
CX = SMBus Real mode data segment
CF set if error
AH = error code (01h,02h,0Ah,86h) (see #0410)
AL = sub-error code if error code is 02h (see #0411)
Desc: connect to SMBus interface; once connected, all SMBus calls are made
to the supplied entry point instead of INT 15 (with registers
identical to those described here for INT 15)
Notes: Support for this function is optional
this function is only supported in INT 15 mode when implemented
SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=03h,AX=53B0h/BH=04h,AX=53B0h/BH=05h
--------X-1553B0BH03-------------------------
INT 15 - Intel System Management Bus - 16-BIT PROTECTED-MODE CONNECT
AX = 53B0h
BH = 03h
CX = 6941h ('iA')
Return: CF clear if successful
AX = SMBus 16-bit code segment (real mode base address)
BX = offset of entry point into SMBus BIOS Interface
CX = SMBus 16-bit data segment (real mode base address)
SI = code segment length in bytes
DI = data segment length in bytes
CF set if error
AH = error code (01h,02h,0Ah,86h) (see #0410)
AL = sub-error code if error code is 02h (see #0411)
Desc: connect to SMBus interface; once connected, all SMBus calls are made
to the supplied entry point instead of INT 15 (with registers
identical to those described here for INT 15)
Notes: before calling the entry point, two descriptors must be initialized
in the GDT or LDT. They must be consecutive and be in the order of
code, then data. At the time of the call, the descriptors must be
valid and have CPL=0.
the code descriptor must be ring-0 privilege
this function is only supported in INT 15 mode
SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=04h,AX=53B0h/BH=05h
--------X-1553B0BH04-------------------------
INT 15 - Intel System Management Bus - 32-BIT PROTECTED-MODE CONNECT
AX = 53B0h
BH = 04h
CX = 6941h ('iA')
Return: CF clear if successful
AX = SMBus 32-bit code segment (real mode base address)
EBX = offset of entry point into SMBus BIOS Interface
CX = SMBus 16-bit code segment (real mode base address)
DX = SMBus data segment (real mode base address)
SI = code segment length in bytes
DI = data segment length in bytes
CF set if error
AH = error code (01h,02h,0Ah,86h) (see #0410)
AL = sub-error code if error code is 02h (see #0411)
Desc: connect to SMBus interface; once connected, all SMBus calls are made
to the supplied entry point instead of INT 15 (with registers
identical to those described here for INT 15)
Notes: before calling the entry point, two descriptors must be initialized in
the GDT or LDT. They must be consecutive and be in the order of
32-bit code, 16-bit code, then data. At the time of the call, the
descriptors must be valid and have CPL=0.
the code descriptors must be ring-0 privilege
this function is supported only in INT 15 mode
SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=05h
--------X-1553B0BH05-------------------------
INT 15 - Intel System Management Bus - DISCONNECT
AX = 53B0h
BH = 05h
CX = 6941h ('iA')
Return: CF clear if successful
AH = 00h (SMBus OK)
CF set if error
AH = error code (03h,04h,05h,0Ah,86h) (see #0410)
Note: this function is supported in connected mode (far CALL entry point)
only
SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=04h
--------X-1553B0BH06-------------------------
INT 15 - Intel System Management Bus - GET DEVICE ADDRESSES
AX = 53B0h
BH = 06h
BL = position in list to report
CH = 6941h ('iA')
Return: CF clear if successful
AH = 00h (SMBus OK)
BH = number of SMBus devices
BL = SMBus Device Address of device at position BL in list
(see #0412)
CF set if error
AH = error code (06h,0Ah,86h) (see #0410)
Desc: retrieves already assigned SMBus device addresses
Notes: this function is supported in INT 15h mode only
bit 0 of the device address indicates read/write, so a device may
be listed at both xxxxxxx0b and xxxxxxx1b
SeeAlso: I2C A0h [and I2C.LST in general]
(Table 0412)
Values for System Management Bus predefined device addresses:
10h SMBus host
12h Smart Battery charger
14h Smart Battery selector
16h Smart Battery
18h SMBus Alert response
50h ACCESS.bus host
58h LCD contrast controller
5Ah CCFL backlight driver
6Eh ACCESS.bus default address
80h-86h PCMCIA socket controllers
88h VGA graphics controller
90h-96h unrestricted addresses
82h SMBus device default address
--------X-1553B0BH07-------------------------
INT 15 - Intel System Management Bus - RETRIEVE CRITICAL MESSAGES
AX = 53B0h
BH = 07h
CX = 6941h ('iA')
Return: CF clear if successful
AH = 00h (SMBus OK)
AL = device address
BX = device message
CF set if error
AH = error code (05h,07h,08h,09h,0Ah,86h) (see #0410)
Desc: retrieves oldest queued critical message from an SMBus device to the
host
Notes: up to five messages are queued; if the queue is full, messages will be
lost and error 09h returned
--------X-1553B0BH08-------------------------
INT 15 - Intel System Management Bus - RESERVED
AX = 53B0h
BH = 08h-0Fh
--------X-1553B0BH10-------------------------
INT 15 - Intel System Management Bus - REQUEST
AX = 53B0h
BH = 10h
BL = protocol (see #0413)
CH = device address
CL = device command (see #0414)
DH = MSB Data or block length (for BlockWrite)
DL = LSB Data or first byte of block (for BlockWrite)
Return: CF clear if successful
AH = 00h or 80h (SMBus OK)
(80h indicates a previously unreported SMI took place)
CF set if error
AH = error code (05h,10h,11h,12h,13h,14h,17h,19h,1Ah,86h)
(see #0410)
Desc: request access to a device on the SMBus
SeeAlso: AX=53B0h/BH=11h, AX=53B0h/BH=13h
(Table 0413)
Values for Intel System Management Bus protocol codes:
00h Quick Command
01h Send Byte
02h Receive Byte
03h Write Byte
04h Read Byte
05h Write Word
06h Read Word
07h Block Write
08h Block Read
09h Process Call
0Ah-FFh reserved
SeeAlso: #0414
(Table 0414)
Values for Intel System Management Bus Smart Battery command codes:
Cmd Protocol(s) Description
00h Rd/Wr Word "ManufacturerAccess" implementation-specific
01h Rd/Wr Word get/set Low Capacity Alarm threshold
02h Rd/Wr Word get/set Remaining Time Alarm value (in minutes)
03h Rd/Wr Word get/set battery characteristics (see #0415)
04h Rd/Wr Word "AtRate" indicate charge/discharge rate
05h Read Word "AtRateTimeToFull" time to completely charge (in min.)
06h Read Word "AtRateTimeToEmpty" time to entirely discharge (min.)
07h Read Word "AtRateOK" boolean: can battery supply another 10sec?
08h Read Word internal battery temperature (in 0.1 Kelvins)
09h Read Word current battery voltage in millivolts
0Ah Read Word current flowing through battery in milliamperes
(positive if charging, negative if discharging)
0Bh Read Word average current over the past minute
0Ch Read Word expected error margin in capacity computations in %
0Dh Read Word predicted remaining charge as % of full charge
0Eh Read Word predicted remaining charge as % of design capacity
0Fh Read Word predicted remaining charge in mAh or 10mWh
10h Read Word predicted full charge capacity in mAh or 10mWh
11h Read Word predicted remaining battery life in minutes
FFFFh = not discharging
12h Read Word rolling average of predicted life over past minute
13h Read Word rolling average of predicted charge time over past min.
FFFFh = not charging
14h Read Word get battery's desired charging current in mA
14h Write Word set charging current in mA
15h Read Word get battery's desired charging current in mV
15h Write Word set desired charging voltage in mV
16h Read Word get current battery status (see #0416)
17h Read Word get number of charge/discharge cycles for battery
18h Read Word get design capacity in mAh or 10mWh
19h Read Word get design voltage
1Ah Read Word get specification information (see #0417)
1Bh Read Word get manufacture date (see #1351 at INT 21/AX=5700h)
1Ch Read Word get serial number
1Dh-1Fh reserved
20h Read Block get manufacturer's name
21h Read Block get device name
22h Read Block get device chemistry (see #0418)
23h Read Block get manufacturer data
24h-2Eh reserved
2Fh manufacturer-specific
30h-3Bh reserved
3Ch-3Fh manufacturer-specific
Note: bits 7-6 are reserved for addressing multiple batteries in a future
version of the specification
SeeAlso: #0413
Bitfields for Smart Battery battery characteristics:
Bit(s) Description (Table 0415)
0 battery has internal charge controller (read-only)
1 primary/secondary battery support (read-only)
6-2 reserved
7 conditioning cycle requested
8 internal charge controller enabled
9 battery operating in primary mode
13-10 reserved
14 disable broadcast to charger
15 report capacity in units of 10mW / 10mWh instead of mA / mAh
SeeAlso: #0414,#0416
Bitfields for Smart Battery battery status:
Bit(s) Description (Table 0416)
15 overcharged
14 terminate-charge alarm
13 reserved
12 over-temperature alarm
11 terminate-discharge alarm
10 reserved
9 remaining-capacity alarm
8 remaining-time alarm
7 initialized
6 charging
5 fully charged
4 fully discharged
3-0 error codes
0000 OK
0001 busy
0010 reserved command
0011 unsupported command
0100 access denied (tried to write to read-only value)
0101 overflow/underflow
0110 bad size
0111 unknown error
SeeAlso: #0414,#0415,#0417
Bitfields for Smart Battery specification information:
Bit(s) Description (Table 0417)
3-0 SmartBattery specification minor revision number
7-4 SmartBattery specification version number
11-8 voltage scaling (0-3, multiply voltages by 10^scale)
15-12 current scaling (0-3, multiply currents by 10^scale)
SeeAlso: #0414,#0416
(Table 0418)
Values for Smart Battery device chemistry (not case-sensitive):
"LION" Lithium ion
"NiMH" Nickel metal hydride
"PbAc" lead-acid
"NiCd" Nickel Cadmium
"NiZn" Nickel Zinc
"RAM" rechargeable Alkaline Manganese
"ZnAr" Zinc-Air
SeeAlso: #0414
--------X-1553B0BH11-------------------------
INT 15 - Intel System Management Bus - REQUEST CONTINUATION
AX = 53B0h
BH = 11h
BL = protocol (see #0413)
CH = device address
CL = number of valid bytes in DX (1 or 2)
DH = MSB Data (CL = 1 or 2)
DL = LSB Data (CL = 2)
Return: CF clear if successful
AH = 00h (SMBus OK)
CL = SMBus status
00h SMBus hardware not ready for more data
01h SMBus hardware ready for 2 more data bytes
CF set if error
AH = error code (05h,11h,13h,15h,16h,18h,1Bh,86h) (see #0410)
Desc: continue WriteBlock protocol started with function 10h
SeeAlso: AX=53B0h/BH=10h, AX=53B0h/BH=13h
--------X-1553B0BH12-------------------------
INT 15 - Intel System Management Bus - REQUEST ABORT
AX = 53B0h
BH = 12h
BL = protocol (see #0413)
CH = device address
CL = device command
Return: CF clear if successful
AH = 00h (SMBus OK)
CF set if error
AH = error code (05h,13h,15h,16h,86h) (see #0410)
Desc: stop the currently pending SMBus request; usually used to terminate
a request after an SMI Detected error
--------X-1553B0BH13-------------------------
INT 15 - Intel System Management Bus - REQUEST DATA AND STATUS
AX = 53B0h
BH = 13h
BL = protocol (see #0413)
CH = device address
CL = device command
Return: CF clear if successful
AH = 00h (SMBus OK)
CH = status
00h no data pending, transaction complete
01h no data pending, transaction continues
02h data pending
CL = number of valid bytes in DX (0-2)
DH = MSB data
DL = LSB data
CF set if error
AH = error code (05h,10h,11h,13h,15h,16h,18h,1Bh,86h) (see #0410)
Desc: determine when a transaction is complete, gather data returned by read
transactions
Note: for Block Read protocol (08h), first call returns block length in DH
and the first byte of the block in DL
----------1554-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 54h
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
--------T-155400-----------------------------
INT 15 C - 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,INT 2F/AX=DE00h
--------T-155401-----------------------------
INT 15 C - 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,INT 2F/AX=DE04h
--------T-155402-----------------------------
INT 15 C - 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,INT 2F/AX=DE05h
--------T-155403-----------------------------
INT 15 C - 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,INT 2F/AX=DE08h
--------T-155404-----------------------------
INT 15 C - 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,INT 2F/AX=DE09h
--------T-155405-----------------------------
INT 15 C - 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
--------T-155406-----------------------------
INT 15 C - 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
--------T-155407-----------------------------
INT 15 C - Omniview Multitasker - EXIT NOTIFICATION
AX = 5407h
Note: called by OmniView to notify programs loaded before OmniView of state
changes inside OmniView
SeeAlso: AX=5400h,INT 2F/AX=DE03h
--------V-155F31-----------------------------
INT 15 C - Chips & Technologies '65530' BIOS - POST INITIALIZATION NOTIFICATION
AX = 5F31h
Return: nothing
Desc: this function is called after the video BIOS completes power-up
initialization and just prior to displaying the sign-on message
SeeAlso: AX=5F33h,AX=5F35h,INT 10/AX=5F50h
--------V-155F33-----------------------------
INT 15 C - Chips & Technologies '65530' BIOS - MODE SET HOOK
AX = 5F33h
BL = current width in characters
BH = curent video mode
CH = active display page
Return: nothing
Desc: this function is called at the end of a video mode set
Note: the OEM has the option of enabling or disabling this callout, as well
as specifying whether the callout occurs on INT 15h or INT 42h
SeeAlso: AX=5F31h,AX=5F35h,INT 10/AX=5F50h,INT 42/AX=5F33h
--------V-155F35-----------------------------
INT 15 C - Chips & Technologies '65530' BIOS - MONITOR SENSING HOOK
AX = 5F35h
Return: DL = boot display
00h CRT
01h flat panel (LCD)
02h both simultaneously
leave unchanged to boot according to BIOS settings
SeeAlso: AX=5F31h,AX=5F33h,INT 10/AX=5F50h
--------b-1560------------------------------------
INT 15 - HUNTER 16 - SET SYSTEM CLOCK SPEED
AH = 60h
AL = new speed
00h normal (8 MHz)
01h Slow Mode 1 (4 MHz)
02h Slow Mode 2 (2 MHz)
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
SeeAlso: AX=6301h
--------p-156000-----------------------------
INT 15 U - HP 100LX/200LX - GET MAIN BATTERY LEVEL
AX = 6000h
Return: AX = battery level
Note: multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6001h,AX=6002h,AX=6003h,AX=6004h
--------p-156001-----------------------------
INT 15 U - HP 100LX/200LX - GET BACKUP BATTERY LEVEL
AX = 6001h
Return: AX = battery level
Note: multiply the returned value with 1Bh and add 622h to get millivolts
SeeAlso: AX=6000h,AX=6002h
--------p-156002-----------------------------
INT 15 U - HP 100LX/200LX - GET POWER INFO
AX = 6002h
Return: AL = power settings (see #0419)
SeeAlso: AX=6000h,AX=6003h,AX=6004h
Bitfields for power settings:
Bit(s) Description (Table 0419)
0-1 unused ???
2 card battery status low (OK if bit clear)
3 battery charging off (disabled if bits 3-5 clear)
4 battery charging slow
5 battery charging fast
6 power adaptor active
7 battery type NiCad (alkaline if bit clear)
--------p-156003-----------------------------
INT 15 U - HP 100LX/200LX - SET MAIN BATTERY TYPE
AX = 6003h
BL = battery type
00h alkaline
01h NiCad
SeeAlso: AX=6000h,AX=6004h
--------p-156004-----------------------------
INT 15 U - HP 100LX/200LX - SET BATTERY CHARGING MODE
AX = 6004h
BL = charging
00h disabled
01h enabled
SeeAlso: AX=6000h,AX=6003h
--------b-1561------------------------------------
INT 15 - HUNTER 16 - GET POWER LEVEL
AH = 61h
Return: AH = percentage of full power left (0..100)
Desc: determine how much battery power is left
SeeAlso: AH=62h,AH=66h,AH=73h"HUNTER"
--------b-1561-------------------------------
INT 15 U - HP 100LX/200LX - SET ANNOUNCIATORS POSITION
AH = 61h
AL = position (20h = left, 60h = right)
Note: The announciators are the indicator symbols for the Shift and Fn keys
in the bottom line
SeeAlso: AH=62h"HP",INT 16/AH=02h
--------b-1562------------------------------------
INT 15 - HUNTER 16 - SET LOW POWER THRESHOLD
AH = 62h
AL = level (00h 5%, 01h 10%, ... 12h 95%)
BX = interval between power low warnings in seconds (1..600)
Return: AH = Status
Desc: set the level (relative to full power) when power-low warnings begin
and the interval between the warnings
SeeAlso: AH=61h,AH=65h,AH=66h
--------b-1562-------------------------------
INT 15 U - HP 100LX/200LX - SET DISPLAY CONTRAST
AH = 62h
BL = contrast (00h-1Fh, 1Fh is the darkest)
SeeAlso: AH=47h"HP",AH=61h"HP"
--------b-156300----------------------------------
INT 15 - HUNTER 16 - GET IDLE TIMEOUT
AX = 6300h
Return: AH = status
BX = timeout in seconds (0-3600)
Desc: get the idle timeout value, the interval without keyboard or
communications activity before the system shuts down
SeeAlso: AX=6301h
--------b-156301----------------------------------
INT 15 - HUNTER 16 - SET IDLE TIMEOUT
AX = 6301h
BX = timeout in seconds (0-3600)
Desc: sets the idle timeout value, the interval without keyboard or
communications activity before the system shuts down
SeeAlso: AX=6300h
--------b-1564------------------------------------
INT 15 - HUNTER 16 - CONTROL RESUME MODE
AH = 64h
AL = new state
00h disable Resume mode
01h enable Resume mode
Return: AH = status
Desc: turn Resume mode on or off. In Resume mode the system starts in
the application that was running when it shut down as if nothing
had happened.
SeeAlso: AH=67h,AH=68h,AH=69h
--------b-1565------------------------------------
INT 15 - HUNTER 16 - AUTHORISE CHARGING
AH = 65h
AL = charging level
01h charging not allowed
02h charging allowed until power down
03h charging allowed until batteries changed or fail.
Ask user if charging is still allowed on next poweron
04h charging allowed indefinitely
BX = 0203h
CX = 0405h
DX = 0607h
Return: AH = status
SeeAlso: AH=66h,AH=68h
--------b-1566------------------------------------
INT 15 - HUNTER 16 - SET BATTERY LEVEL
AH = 66h
AL = level in percent of maximum (0..100)
Return: AH = status
SeeAlso: AH=61h,AH=65h
--------b-1567------------------------------------
INT 15 - HUNTER 16 - CONTROL STOP MODE
AH = 67h
AL = mode when waiting for input
00h use STOP mode (allows communication)
01h use HALT mode (disallows communication)
Return: AH = status
Desc: select the power save mode to use when waiting for input
SeeAlso: AH=69h
--------b-1568------------------------------------
INT 15 - HUNTER 16 - REQUEST POWER DOWN
AH = 68h
Desc: turns off the Hunter 16 if power down is allowed (see AH=69h)
SeeAlso: AH=69h
--------b-1569------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER DOWN AVAILABILITY
AH = 69h
AL = mode
00h inhibit power down
01h allow power down
Return: AH = status
SeeAlso: AH=67h,AH=68h,AH=6Ah
--------b-156A------------------------------------
INT 15 - HUNTER 16 - CONTROL SLOW MODE
AH = 6Ah
AL = mode
00h inhibit Slow mode
01h allow Slow mode
Return: AH = status
SeeAlso: AH=69h
--------b-156B------------------------------------
INT 15 - HUNTER 16 - GET ROM BIOS VERSION
AH = 6Bh
Return: BH = version number (ASCII)
BL = release number (ASCII)
CH = major??? release number (ASCII)
CL = minor??? release number (ASCII)
SeeAlso: AH=6Ch
--------b-156C------------------------------------
INT 15 - HUNTER 16 - GET SERIAL NUMBER
AH = 6Ch
Return: BL:CX = BCD serial number
Note: when shipped, all Hunter 16s have the same Serial Number, but a
different number can be stored (see AH=72h)
SeeAlso: AH=6Bh,AH=72h
--------b-156D------------------------------------
INT 15 - HUNTER 16 - GET EVENT DETAIL
AH = 6Dh
Return: AH = 00h if successful
CX:BX = event flags bit 0..31 (see #0420)
Note: this function allows testing for events
SeeAlso: AH=6Eh,AH=6Fh
Bitfields for HUNTER 16 events:
Bit(s) Description (Table 0420)
6 RI received
5 RTC Alarm
4 data received on COM2
3 data received on COM1
2 error on COM2
1 error on COM1
0 PWR button pressed
--------b-156E------------------------------------
INT 15 - HUNTER 16 - ENABLE/TRAP EVENT
AH = 6Eh
AL = Software Interrupt
00h do not trap event
else trap as software interrupt number AL
BH = event number (see AH=6Dh)
BL = enable mask
00h disable event
01h enable event
Return: AH = 00h if successful
SeeAlso: AH=6Dh,AH=6Fh
--------b-156F------------------------------------
INT 15 - HUNTER 16 - ACKNOWLEDGE EVENT
AH = 6Fh
AL = event number (see AH=6Dh)
Return: AH = 00h if successful
Desc: Acknowledges the event, so the next similar event can be detected
SeeAlso: AH=6Dh"HUNTER",AH=6Eh
--------b-1570------------------------------------
INT 15 - HUNTER 16 - CONTROL SOUND
AH = 70h
AL = new state
00h disable sound
else enable sound
Note: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
--------x-157000-----------------------------
INT 15 - Tandy 1000SL/TL - READ FROM EEPROM
AX = 7000h
BL = number of word to read (00h-3Fh)
Return: CF clear if function supported
DX = contents of EEPROM word
Note: newer Tandy 1000-series machines use EEPROM instead of CMOS RAM in
the clock chip to store system configuration information
SeeAlso: AX=7001h
--------x-157001-----------------------------
INT 15 - Tandy 1000SL/TL - WRITE TO EEPROM
AX = 7001h
BL = number of word to read (00h-3Fh)
DX = new value for EEPROM word
Return: CF clear if function supported
Note: the EEPROMs are normally written only by the system setup program;
changing the values can badly mess up a Tandy
SeeAlso: AX=7000h
----------157002-----------------------------
INT 15 U - Tandy 1000 Model ??? - GET ROM PAGE
AX = 7002h
Return: AL = ROM page mapped at 0E0000h (0-6 (13?))
Note: some Tandy machines have DOS and DeskMate in a 512k paged ROM. The
BIOS uses this call to determine what ROM page is mapped in the 64k
segment at 0E0000h.
the 1000TL has 8 64k ROM pages; page 7 is permanently mapped at
0F0000h. There may be 16 32k ROM pages on other systems.
SeeAlso: AX=7003h,INT E0"DeskMate"
----------157003-----------------------------
INT 15 U - Tandy 1000 Model ??? - SET ROM PAGE
AX = 7003h
DL = ROM page to be mapped at 0E0000h (0-6 (13?))
Return: CF clear if valid ROM page specified
Note: Some Tandy machines have DOS and DeskMate in a 512k paged ROM. The
BIOS uses this call to map ROM pages in the 64k segment at 0E0000h.
The 1000TL has 8 64k ROM pages; page 7 is permanently mapped at
0F0000h. There may be 16 32k ROM pages on other systems.
SeeAlso: AX=7002h,INT E0"DeskMate"
--------b-1571------------------------------------
INT 15 - HUNTER 16 - SELECT POWER UP KEYS
AH = 71h
BL = column
BH = row
AL = column switch (00h disable, 01h enable)
CL = row switch (00h disable, 01h enable)
Return: AH = status
SeeAlso: AH=7Bh,AH=88h
--------b-157200----------------------------------
INT 15 - HUNTER 16 - RESET SERIAL NUMBER
AX = 7200h
Return: AH = 00h if successful
Desc: reset the serial number to the default serial number present when the
Hunter 16 was shipped
SeeAlso: AH=6Ch,AH=72h
--------b-1572------------------------------------
INT 15 - HUNTER 16 - REDIRECT SERIAL NUMBER
AH = 72h
AL nonzero
DS:BX -> new serial number (6 ASCII digits)
Return: AH = 00h if successful
Desc: install a new serial number
SeeAlso: AH=6Ch,AX=7200h
--------b-1573------------------------------------
INT 15 - HUNTER 16 - GET ORACLE GT POWER LEVEL
AH = 73h
AL = drive (0: A:, 1: B:)
Return: AH = status
00h successful
FFh Oracle GT drive not connected
AL = power level in percent of maximum (0..100)
Desc: get the power remaining in the Oracle GT batteries
SeeAlso: AH=61h
--------b-1574------------------------------------
INT 15 - HUNTER 16 - SET BACKLIGHT POWER UP STATE
AH = 74h
AL = new level
01h off
02h unchanged
03h change level
BL = desired level (00h-7Fh)
Return: AH = status
Desc: select the backlight level to use when the Hunter is next turned on
SeeAlso: AH=64h,AH=75h,INT 10/AH=64h,INT 10/AH=78h
--------b-1575------------------------------------
INT 15 - HUNTER 16 - SET CONTRAST POWER UP STATE
AH = 75h
AL = new level
01h off
02h unchanged
03h change level
BL = desired level (00h-7Fh)
Return: AH = status
Desc: select the LCD contrast level to use when the Hunter is next turned on
SeeAlso: AH=63h,AH=74h
--------b-1576------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER SAVE
AH = 76h
BX = power save control (see #0421)
SeeAlso: AH=74h
Bitfields for HUNTER 16 power save control:
Bit(s) Description (Table 0421)
0 power save enabled
1 inhibit power save when waiting for COM1 data
2 inhibit power save when waiting for COM2 data
3 inhibit power save when waiting for data from barcode wand
4 inhibit power up on timer tick
--------b-1579------------------------------------
INT 15 - HUNTER 16 - REDIRECT LPT1
AH = 79h
AL = port to which to redirect (00h COM1, 01h COM2)
--------b-157A------------------------------------
INT 15 - HUNTER 16 - INVOKE HOT KEY
AH = 7Ah
Desc: this function has the same effect as pressing the HOT key
SeeAlso: AH=7Bh
--------b-157B------------------------------------
INT 15 - HUNTER 16 - CONTROL HOT KEY
AH = 7Bh
AL = 00h prevent HOT key
else allow HOT key
Desc: Allow or prevent the HOT key function which is used to examine and
change the Hunter setup
SeeAlso: AH=71h,AH=7Ah,AH=7Ch
--------b-157C------------------------------------
INT 15 - HUNTER 16 - CONTROL HOT KEY POWER OPTION
AH = 7Ch
AL = 00h prevent HOT key power option
else allow HOT key power option
Desc: allow or prevent changing the power options
SeeAlso: AH=7Bh,AH=7Dh
--------b-157D------------------------------------
INT 15 - HUNTER 16 - OVERRIDE LOW POWER TURN OFF
AH = 7Dh
AL = 00h turn off after 10 warnings
else never turn off
Desc: specify whether the Hunter 16 turns off after 10 low power warnings
SeeAlso: AH=7Ch
--------b-157E------------------------------------
INT 15 - HUNTER 16 - CONTROL BATTERY CHANGE FACILITIES (APM)
AH = 7Eh
AL = 00h do not prompt
else prompt
Desc: select whether the user is prompted for the battery state if the
battery cap has been off when the system is turned on
SeeAlso: AH=7Fh
--------b-157F------------------------------------
INT 15 - HUNTER 16 - SET BATTERY TYPE (APM)
AH = 7Fh
AL = battery type
00h non-rechargeable
else rechargeable
SeeAlso: AH=7Eh
--------B-1580-------------------------------
INT 15 C - 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 (see #0422)
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
(Table 0422)
Values for status:
80h invalid command (PC,PCjr)
86h function not supported (XT)
--------b-1580------------------------------------
INT 15 - HUNTER 16 - GET/SET BATTERY CAPACITY (APM)
AH = 80h
AL = function
00h get
Return: AL = capacity (500mA + AL * 50mA, max 40 = 2500mA)
else set
BL = battery capacity (same as AL above)
SeeAlso: AH=61h"HUNTER",AH=81h"HUNTER"
--------B-1581-------------------------------
INT 15 C - 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 #0422)
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
--------b-1581------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER OUTPUT
AH = 81h
AL = new state of power output (00h off, nonzero on)
Desc: turn the +5V low power output on or off
SeeAlso: AH=80h"HUNTER"
--------B-1582-------------------------------
INT 15 C - 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 #0422)
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
--------b-1582------------------------------------
INT 15 - HUNTER 16 - SOUND OUTPUT
AH = 82h
DX = length (duration in seconds = DX * 666670 / frequency)
BX = pitch (see #0423)
Desc: Sound the tone specified in BX for the duration in DX
SeeAlso: AX=1019h
(Table 0423)
Values for HUNTER 16 sound pitch:
BX(dec) Note Frequency BX(dec) Note Frequency
425 G 1568.000 1515 A 440.000
451 F# 1479.503 1605 G# 415.307
477 F 1396.900 1701 G 392.000
506 E 1318.500 1802 F# 369.998
536 D# 1244.523 1909 F 349.230
568 D 1174.700 2022 E 329.630
601 C# 1108.749 2143 D# 311.127
637 C 1046.500 2270 D 293.660
675 B 958.770 2405 C# 277.183
715 A# 932.329 2548 MID C 261.630
758 A 880.000 2700 B 246.940
803 G# 830.609 2860 A# 233.081
850 G 783.990 3030 A 220.000
901 F# 739.990 3210 G# 207.654
954 F 698.460 3401 G 196.000
1011 E 659.260 3604 F# 184.996
1071 D# 622.257 3818 F 174.610
1135 D 587.330 4045 E 164.810
1203 C# 554.365 4286 D# 155.560
1274 C 523.250 4540 D 146.830
1350 B 493.880 4668 C# 142.827
1430 A# 466.162 4803 C 138.810
--------B-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
Notes: the resolution of the wait period is 977 microseconds on many systems
because many BIOSes use the 1/1024 second fast interrupt from the AT
real-time clock chip which is available on INT 70
IBM AT 1/10/84 BIOS ignores AL and always performs subfunction 00h
SeeAlso: AH=41h,AH=86h,INT 70,MEM 0040h:0098h,MEM 0040h:009Ch
--------b-1583------------------------------------
INT 15 - HUNTER 16 - CONTROL SCREEN SYNCHRONISATION
AH = 83h
AL = state of LCD window (00h disabled, nonzero enabled)
Desc: Enable/disable the facility where the displayed window tracks the
cursor output to keep the focus visible
--------B-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 (see #0422)
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
SeeAlso: AH=84h"V20-XT-BIOS"
--------b-1584-------------------------------
INT 15 - V20-XT-BIOS - JOYSTICK SUPPORT
AH = 84h
DX = subfunction
0000h read joystick switches
Return: AL bits 7-4 = switch settings
other: read positions of joysticks as indicated by bits 0-3
Return: AX = X position of joystick A (if DX bit 0 set)
BX = Y position of joystick A (if DX bit 1 set)
CX = X position of joystick B (if DX bit 2 set)
DX = Y position of joystick B (if DX bit 3 set)
Return: CF set on error
AH = status (see #0422)
CF clear if successful
Program: V20-XT-BIOS is a ROM BIOS replacement with extensions by Peter
Koehlmann / c't magazine
SeeAlso: AH=84h"PS",INT 10/AH=0Eh/CX=ABCDh
--------b-158400----------------------------------
INT 15 - HUNTER 16 - GET DISKETTE PORT
AX = 8400h
BH = Drive (0: A:, 1: B:)
Return: AL = Port (0: COM1, >0: COM2)
Desc: return the COM port used for the floppy drive
SeeAlso: AX=8401h
--------b-158401----------------------------------
INT 15 - HUNTER 16 - SET DISKETTE PORT
AX = 8401h
BH = Drive (0: A:, 1: B:)
BL = Port (0: COM1, >0: COM2)
Desc: set the COM port used for the floppy drive
SeeAlso: AX=8400h
--------B-1585-------------------------------
INT 15 C - OS HOOK - SysReq KEY ACTIVITY (AT,PS)
AH = 85h
AL = SysReq key action (00h pressed, 01h released)
CF clear
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (see #0422)
Notes: called by keyboard decode routine
the default handler simply returns successfully; programs which wish
to monitor the SysReq key must hook this call
the SysReq key is often labeled SysRq
SeeAlso: INT 09
--------b-158500----------------------------------
INT 15 - HUNTER 16 - RESTORE POWER MENU (APM)
AX = 8500h
Desc: restore the standard power menu
SeeAlso: AX=8501h"HUNTER"
--------b-158501----------------------------------
INT 15 - HUNTER 16 - SET POWER MENU (APM)
AX = 8501h
BL = user software interrupt number
Desc: install an alternate power menu routine
SeeAlso: AX=8500h"HUNTER"
--------B-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 #0422)
Note: the resolution of the wait period is 977 microseconds on many systems
because many BIOSes use the 1/1024 second fast interrupt from the AT
real-time clock chip which is available on INT 70; because newer
BIOSes may have much more precise timers available, it is not
possible to use this function accurately for very short delays unless
the precise behavior of the BIOS is known (or found through testing)
SeeAlso: AH=41h,AH=83h,INT 1A/AX=FF01h,INT 70
--------b-1586------------------------------------
INT 15 - HUNTER 16 - GET/SET SCREEN ATTRIBUTE TABLE
AH = 86h
AL = function (00h get, nonzero set)
BX = 1234h
DS:SI -> 256-byte Attribute buffer
Note: In text modes each character has its attribute byte XOR'd with the
corresponding byte in the attribute table. If the attribute is 15,
15 is XOR'd with Table[15]
--------B-1587-------------------------------
INT 15 - SYSTEM - COPY EXTENDED MEMORY
AH = 87h
CX = number of words to copy (max 8000h)
ES:SI -> global descriptor table (see #0425)
Return: CF set on error
CF clear if successful
AH = status (see #0424)
Notes: copy is done in protected mode with interrupts disabled by the default
BIOS handler; many 386 memory managers perform the copy with
interrupts enabled
this function is incompatible with the OS/2 compatibility box
SeeAlso: AH=88h,AH=89h,INT 1F/AH=90h
(Table 0424)
Values for extended-memory copy 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)
Format of global descriptor table:
Offset Size Description (Table 0425)
00h 16 BYTEs zeros (used by BIOS)
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 (286) zero
(386+) extended access rights and high byte of source address
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 WORD (286) zero
(386+) extended access rights and high byte of destin. address
20h 16 BYTEs zeros (used by BIOS to build CS and SS descriptors)
--------b-1587------------------------------------
INT 15 - HUNTER 16 - SET INT 72h VECTOR
AH = 87h
DS:DX = new service routine
Desc: set the INT 72h vector which is called in 2 cases:
- when the machine is about to turn off or reboot, INT 72h is called
with AH=0
- when the machine is powering up INT 72h is called with AH=01h
Note: the actual INT 72h vector must also be changed with INT 21/AH=25h
--------B-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)
Notes: 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.
the standard BIOS only returns memory between 1MB and 16MB; use AH=C7h
for memory beyond 16MB
not all BIOSes correctly return the carry flag, making this call
unreliable unless one first checks whether it is supported through
a mechanism other than calling the function and testing CF
SeeAlso: AH=87h,AH=8Ah"Phoenix",AH=C7h,AX=DA88h,AX=E801h,AX=E820h
--------b-1588------------------------------------
INT 15 - HUNTER 16 - GET POWER UP KEYS
AH = 88h
Return: AH = 00h
BX = column
CL = row
SeeAlso: AH=71h
--------B-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 (see #0426)
Return: CF set on error
AH = FFh error enabling address line 20
CF clear if successful
AH = 00h
in protected mode at specified address
BP may be destroyed; all segment registers change
Notes: BL and BH must be multiples of 8
the protected-mode CS must reference the same memory as the CS this
function is called from because execution continues with the address
following the interrupt call
SeeAlso: AH=87h,AH=88h,INT 67/AX=DE0Ch
Format of BIOS switch-to-protected-mode Global Descriptor Table:
Offset Size Description (Table 0426)
00h 8 BYTEs null descriptor (initialize to zeros)
08h 8 BYTEs GDT descriptor (see #0427)
10h 8 BYTEs IDT descriptor
18h 8 BYTEs DS descriptor
20h 8 BYTEs ES
28h 8 BYTEs SS
30h 8 BYTEs CS
38h 8 BYTEs uninitialized, used to build descriptor for BIOS CS
Format of segment descriptor table entry:
Offset Size Description (Table 0427)
00h WORD segment limit, low word
02h 3 BYTEs segment base address, low 24 bits
05h BYTE access mode (see #0428)
06h BYTE 386+ extended access mode (see #0429)
07h BYTE 386+ segment base address, high 8 bits
SeeAlso: #0426,INT 2C/AX=0002h,INT 31/AX=0009h
Bitfields for segment descriptor table access mode field:
Bit(s) Description (Table 0428)
3-0 segment type (see #3724,#3725)
4 descriptor type (1 = application, 0 = system)
6-5 descriptor privilege level
7 segment is present in RAM
SeeAlso: #0427,#0429
(Table 3724)
Values for system segment descriptor type:
0 reserved
1 available 16-bit TSS
2 LDT
3 busy 16-bit TSS
4 16-bit call gate
5 task gate
6 16-bit interrupt gate
7 16-bit trap gate
8 reserved
9 available 32-bit TSS
10 reserved
11 busy 32-bit TSS
12 32-bit call gate
13 reserved
14 32-bit interrupt gate
15 32-bit trap gate
SeeAlso: #0428,#3725
Bitfields for application segment descriptor type:
Bit(s) Description (Table 3725)
3 code/data
0 date
1 code
---data segments---
2 expand down
1 writeable
---code segments---
2 conforming
1 readable
------
0 accessed
SeeAlso: #0428,#3724
Bitfields for 386+ segment descriptor table extended access mode field:
Bit(s) Description (Table 0429)
3-0 high 4 bits of segment limit
4 available
5 reserved (0)
6 default operation size (1 = 32 bits, 0 = 16 bits)
7 granularity (1 = 4K, 0 = byte)
SeeAlso: #0427,#0428,#2245
--------b-158900----------------------------------
INT 15 - HUNTER 16 - GET POWER MODE
AX = 8900h
Return: AH = 00h
BL = current power mode
00h Standard Power Mode (SPM)
01h Advanced Power Mode (APM)
SeeAlso: AX=8901h
--------b-158901----------------------------------
INT 15 - HUNTER 16 - SET POWER MODE
AX = 8901h
BL = new mode
00h Standard Power Mode (SPM)
01h Advanced Power Mode (APM)
Return: AH = 00h
SeeAlso: AX=8900h
--------b-158A------------------------------------
INT 15 - HUNTER 16 - CONTROL POWER INPUT (SPM)
AH = 8Ah
AL = new state of Power Input (00h disabled, nonzero enabled)
SI = 1234h
DI = 5678h
Return: AH = status
00h success
FFh failure
Desc: Enable or disable Power Input. When Power Input is disabled the AC
adapter will neither charge the batteries nor supply power to the
Hunter 16. Disable Power Input if using Alkaline batteries.
--------b-158A-------------------------------
INT 15 - Phoenix BIOS v4.0 - GET BIG MEMORY SIZE
AH = 8Ah
Return: DX:AX = extended memory size in K
SeeAlso: AH=88h,AX=E801h,AX=E820h
--------b-158B------------------------------------
INT 15 - HUNTER 16 - GET/SET CHARGER TEMPERATURE OVERRIDE
AH = 8Bh
AL = function
00h get
Return: BH = Maximum charging temperature
Temp = -20 + (n * 0.63) degrees Centigrade
BL = Minimum charging temperature
else set
BH = maximum charging temperature (as above)
BL = minimum charging temperature (as above)
Return: AH = status
00h success
FFh failure
Desc: get/set the temperature interval within which the charger should
operate
--------b-158C------------------------------------
INT 15 - HUNTER 16 - GET/SET POWER SAVE ENTRY FLAG
AH = 8Ch
AL = function
00h get
Return: BX = which operations disable power save (see #0430)
else set
BX = which operations should disable power save (see #0430)
SeeAlso: AH=8Dh
Bitfields for HUNTER 16 operations disabling power save:
Bit(s) Description (Table 0430)
0 INT 10h prevents power save
1 INT 13h prevents power save
2 INT 14h prevents power save
3 INT 15h prevents power save
4 INT 1Ah prevents power save
5 INT 21h prevents power save
6 direct write to video RAM prevents power save
7 access to 8250 UART prevents power save
8 access to 8253 (Sound) prevents power save
--------b-158D------------------------------------
INT 15 - HUNTER 16 - GET/SET BOOST CHARGE (SPM)
AH = 8Dh
AL = function
00h get
Return: AL = Fast Charge state (00h prevented, else allowed)
nonzero set
BH = Fast Charge state (00h prevent, nonzero allow)
Return: AH = status
00h success
FFh failure
Desc: control whether Fast Charging (200ma rather than 70ma) is allowed
SeeAlso: AH=8Ch
--------B-1590-------------------------------
INT 15 - OS HOOK - DEVICE BUSY (AT,PS)
AH = 90h
AL = device type (see #0431)
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
floppy and hard disk BIOS code uses this call to implement a timeout;
for device types 00h and 01h, a return of CF set means that the
timeout expired before the disk responded.
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,INT 13/AH=00h,INT 17/AH=00h,INT 1A/AH=83h
(Table 0431)
Values for device type:
00h disk
01h diskette
02h keyboard
03h PS/2 pointing device
21h waiting for keyboard input (Phoenix BIOS)
80h network
FBh digital sound (Tandy)
FCh disk reset (PS)
FDh diskette motor start
FEh printer
--------B-1591-------------------------------
INT 15 - OS HOOK - DEVICE POST (AT,PS)
AH = 91h
AL = device type (see #0431)
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
--------B-1592-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = 92h
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
--------B-15A0-------------------------------
INT 15 - IBM SurePath BIOS - ACCESS LOADABLE-ABIOS SIGNATURE
AH = A0h
AL = function
00h get loadable-ABIOS signature
Return: BL = signature value
00h loadable-ABIOS prompting not required
A1h loadable-ABIOS prompting is required
01h write loadable-ABIOS signature
BL = new signature value
00h loadable-ABIOS prompting not required
A1h loadable-ABIOS prompting is required
Return: CF clear if successful
CF set on error
AH = status
00h successful
01h invalid subfunction
02h unable to read/write signature
86h function not supported
Note: IBM classifies this function as optional
SeeAlso: AH=08h"IBM"
--------x-15A100-----------------------------
INT 15 U - AMI PCI BIOS - SET ??? FLAG
AX = A100h
Return: AX = 0000h
CF clear
BX,CX,DI may be destroyed
Desc: sets bit 7 of CMOS RAM location 37h and updates the CMOS checksum in
locations 3Eh and 3Fh
Notes: in the examined version of the BIOS, nonzero values in AL cause it to
drop through to checking the next possible value of AH, i.e. only
subfunction 00h is supported
also supported by Dell XPS P90 and IBM PS/PV 6384, which also use
AMI BIOSes
--------B-15AB-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = ABh
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
----------15B001CX5354-----------------------
INT 15 - Stac ??? - INSTALLATION CHECK
AX = B001h
CX = 5354h ('ST')
DX = 4143h ('AC')
Return: AX = 4F4Bh ('OK') if installed
Note: this function is called by Novell DOS 7 NWCACHE v1.01
--------n-15BA10-----------------------------
INT 15 - HP OmniShare - Pen Driver - REPORT PEN CONTROL AREA EVENT
AX = BA10h
BL = event
00h the pen left control areas
01h the pen entered the Brightness- area
02h the pen entered the Brightness+ area
03h the pen entered the Contrast- area
04h the pen entered the Contrast+ area
Return: CF clear if successfully processed
CF set on error (function not supported, ie. not an OmniShare BIOS)
Note: The pen driver is responsible for detecting when the pen enters and
leaves control areas of the OmniShare tablet, and notifying the BIOS.
The BIOS manages the events, including the autorepetition, and sets
the status LEDs.
SeeAlso: AX=BA20h,AX=BA13h
--------n-15BA11-----------------------------
INT 15 - HP OmniShare - Pen Driver - SET THE COMMUNICATION LED STATE
AX = BA11h
BL = new LED state (00h steady, 01h flashing)
Return: CF clear if successful
CF set on error
Note: this function is for use by communication software to give visual
feedback of active communications even if the display is in standby
mode.
SeeAlso: AX=BA10h,AX=BA24h
--------n-15BA12-----------------------------
INT 15 - HP OmniShare - Pen Driver - STORE PEN BATTERY CHARGE
AX = BA12h
BL = new battery state (00h good, 01h low charge)
Return: CF set on error
CF clear if successfully stored in CMOS
Note: The last report will be displayed by the Power-On Self Test the next
time the OmniShare boots. This allows something meaningful to be
reported even if the pen is not detected during the POST.
SeeAlso: AX=BA13h
--------n-15BA13-----------------------------
INT 15 - HP OmniShare - Pen Driver - GET PEN BATTERY CHARGE
AX = BA13h
Return: CF clear if successful
BL = pen battery state (00h good, 01h low charge)
CF set on error
Note: returns the last value set by AX=BA12h.
SeeAlso: AX=BA12h
--------p-15BA20-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - INSTALLATION CHECK
AX = BA20h
Return: CF clear if successful (installed)
CF set on error (not installed)
Notes: The display controller can enter a standby mode after a given timeout,
to conserve power or (for the OmniShare) to increase the life of
the backlight.
A side effect of standby mode is that the communications LED turns on
automatically when the display is in standby mode. This is done in
hardware, and is intended to show that the unit is still on.
SeeAlso: AX=BA10h,AX=BA20h,AX=BA22h,AX=BA24h,AX=BA26h
--------p-15BA21-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - SET STANDBY DURATION
AX = BA21h
BL = new timeout before standby mode in minutes (01h-0Fh)
00h to disable automatic switch to standby mode
Return: CF clear if successful
CF set on error (function not supported)
Note: The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA22h
--------p-15BA22-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - GET STANDBY DURATION
AX = BA22h
Return: CF clear if successful
BL = standy duration in minutes (01h-0Fh), or 00h if disabled
CF set on error (function not supported)
Note: The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
instead of (N*60) seconds as documented.
SeeAlso: AX=BA20h,AX=BA21h
--------p-15BA23-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - TURN ON THE SCREEN IMMEDIATELY
AX = BA23h
Return: CF clear if successful
CF set on error
SeeAlso: AX=BA11h,AX=BA20h,AX=BA24h
--------p-15BA24-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - TURN OFF THE SCREEN IMMEDIATELY
AX = BA24h
Return: CF clear if successful
CF set on error
Note: This function is not implemented yet. Reserved for future versions
of the OmniShare.
SeeAlso: AX=BA11h,AX=BA20h,AX=BA23h
--------p-15BA25-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - PREPARE FOR UNINSTALL
AX = BA25h
Return: CF clear if successful
AX = 25BAh
BX = PSP of STANDBY.COM resident portion
DX:CX -> previous INT 15 handler
CF set on error
Note: This function is used internally by the STANDBY.COM /u option, and
should not be used by application programs.
SeeAlso: AX=BA20h
--------p-15BA26-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - IS THE DISPLAY IN STANDBY MODE?
AX = BA26h
Return: CF clear if successful
AL = display state (00h active, 01h in standby mode)
CF set on error (function not supported)
SeeAlso: AX=BA20h,AX=BA23h
--------p-15BA27-----------------------------
INT 15 - HP OmniShare - STANDBY.COM - RESERVED FUNCTIONS
AX = BA27h to BA2Fh
Desc: reserved for future use
--------b-15BC-------------------------------
INT 15 - Phoenix 386 BIOS - DETERMINE CPU SPEED FOR DELAY LOOPS
AH = BCh
Return: CF clear
(Phoenix 1.10 10a) BYTE 0040h:00B0h set to delay loop count
(Dell 4xxDE BIOS A11) WORD 0040h:00ECh set to delay loop count
Note: this function reads system timer channel 0 twice, then does
calculations on the returned values to determine the delay loop
counter needed by the BIOS for beeps and floppy timeouts
SeeAlso: AX=2305h,MEM 0040h:00B0h
--------E-15BF00-----------------------------
INT 15 - Rational Systems DOS/16M - ???
AX = BF00h
???
Return: ???
Note: under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
SeeAlso: AX=BF02h
--------E-15BF01-----------------------------
INT 15 - Rational Systems DOS/16M - ???
AX = BF01h
???
Return: ???
Notes: under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
called by DOS/4GW
SeeAlso: AX=BF00h,AX=BF02h
--------E-15BF02DX0000-----------------------
INT 15 - Rational Systems DOS/16M - INSTALLATION CHECK
AX = BF02h
DX = 0000h
Return: DX = nonzero if installed
DX:SI -> XBRK structure (see #0432)
Note: this function is also supported by DOS/4G
SeeAlso: AX=BF01h,AX=BFDCh,AX=BFDEh/BX=0000h
SeeAlso: INT 21/AH=FFh/DH=0Eh,INT 2F/AH=A1h,INT 2F/AX=F100h,INT 2F/AX=FBA1h
Format of DOS/16M XBRK structure:
Offset Size Description (Table 0432)
00h DWORD linear address of first available byte
04h DWORD linear address of last available byte + 1 ???
08h DWORD real-mode address of XBRK structure???
0Ch DWORD ???
10h 2 BYTEs ???
12h WORD segment of ???
14h 8 BYTEs ???
1Ch 512 BYTEs protected-mode IDT
21Ch N BYTEs protected-mode GDT
--------E-15BF03-----------------------------
INT 15 - Rational Systems DOS/4GW - UNINSTALL???
AX = BF03h
BX = PSP segment of extender
???
Return: ???
Note: if BX is not the PSP segment of the extender, it passes the call down
the INT 15 chain; this allows nested instances of the extender
SeeAlso: AX=BF06h
--------E-15BF04-----------------------------
INT 15 - Rational Systems DOS/4GW - ???
AX = BF04h
BX = PSP segment of extender
Return: nothing???
Notes: if BX is not the PSP segment of the extender, it passes the call down
the INT 15 chain; this allows nested instances of the extender
grabs INT 2Fh and installs handlers for INT 2F/AX=1605h-1607h
SeeAlso: INT 2F/AX=1607h/BX=22C0h
--------E-15BF05-----------------------------
INT 15 - Rational Systems DOS/4GW - INITIALIZE PROTECTED-MODE INTERFACE
AX = BF05h
BX = PSP segment of extender
Return: nothing???
Notes: if BX is not the PSP segment of the extender, it passes the call down
the INT 15 chain; this allows nested instances of the extender
calls INT 67/AX=DE01h if ???
--------E-15BF06-----------------------------
INT 15 - Rational Systems DOS/4GW - ???
AX = BF06h
BX = PSP segment of extender
???
Return: ???
Note: if BX is not the PSP segment of the extender, it passes the call down
the INT 15 chain; this allows nested instances of the extender
SeeAlso: AX=BF03h
--------E-15BFDCDX0000-----------------------
INT 15 - Rational Systems DOS/4GW - INSTALLATION CHECK
AX = BFDCh
DX = 0000h
SI = 0000h
Return: DX = nonzero if installed
DX:SI -> XBRK structure (see #0432)
SeeAlso: AX=BF02h
--------E-15BFDEBX0000-----------------------
INT 15 - DESQview/X - DVDOS4GX.DVR - INSTALLATION CHECK
AX = BFDEh
BX = 0000h
Return: AX = ??? (0003h)
BX = FFFFh
SeeAlso: AX=BF02h
--------E-15BFDEBX0001-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROCESS MANAGER NAME
AX = BFDEh
BX = 0001h
Return: BX = 0000h (success)
CX:DX -> name of process manager executable
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0002-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
AX = BFDEh
BX = 0002h
CX:DX -> ???
Return: BX = 0000h (success)
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0003h
--------E-15BFDEBX0003-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = 0003h
Return: BX = 0000h (success)
CX:DX -> ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0002h
--------E-15BFDEBX0004-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 0004h
CL = ???
Return: BX = 0000h (success)
CX:DX -> XBRK structure (see #0432)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0005-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 0005h
CX = new value for ???
Return: BX = 0000h (success)
AX = old value of ???
DS:SI -> ??? (if AX nonzero on return)
ES:DI -> ??? (if AX zero on return)
Note: called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0006-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = 0006h
Return: BX = 0000h (success)
AH = interrupt number??? (BEh)
CX:DX = ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0007h,INT BE"DESQview"
--------E-15BFDEBX0007-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
AX = BFDEh
BX = 0007h
CX:DX = ???
Return: BX = 0000h (success)
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0006h
--------E-15BFDEBX0008-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 0008h
CX = segment of ???
DS = ???
Return: BX = status
0000h successful
AL = ??? (80h or C0h)
DX = ??? (0603h) if AL=C0h
0001h failed
AX = 0000h
Note: called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0009-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROTECTED MODE PROGRAM LOADER
AX = BFDEh
BX = 0009h
Return: BX = 0000h (success)
CX:DX -> full pathname to LOAD32.EXP
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000A-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - DECREMENT ???
AX = BFDEh
BX = 000Ah
Return: BX = 0000h (success)
AX = new value of ??? counter
Notes: also resets a variety of values if the counter goes negative
called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Bh
--------E-15BFDEBX000B-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - INCREMENT ???
AX = BFDEh
BX = 000Bh
Return: AX = new value of ??? counter
Note: called by DOS4GW.EXE
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Ah
--------E-15BFDEBX000C-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 000Ch
CL = ???
00h
nonzero
Return: ???
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000D-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 000Dh
???
Return: ???
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX000E-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 000Eh
DX:CX -> ???
Return: AX = segment of handle for calling task
BX = ??? (probably destroyed)
DX:CX -> ???
SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Fh,AX=BFDEh/BX=0013h
--------E-15BFDEBX000F-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
AX = BFDEh
BX = 000Fh
Return: AX = segment of handle for calling task
BX = ??? (probably destroyed)
DX:CX -> ???
Note: identical to AX=BFDEh/BX=000Eh with CX:DX = 0000h:0000h
SeeAlso: AX=BFDEh/BX=000Eh,AX=BFDEh/BX=0010h
--------E-15BFDEBX0010-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET TASK HANDLE
AX = BFDEh
BX = 0010h
Return: AX = segment of caller's task handle
BX destroyed
SeeAlso: AX=BFDEh/BX=000Fh
--------E-15BFDEBX0011-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = 0011h
Return: CX = code segment of DVDOS4GX.DVR
BX = ??? (0004h)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0012-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = 0012h
Return: DX = code segment of DVDOS4GX.DVR
BX = ??? (012Ch)
CX = ??? (0006h)
SeeAlso: AX=BFDEh/BX=0000h
--------E-15BFDEBX0013-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = 0013h
Return: DX:CX -> ???
SeeAlso: AX=BFDEh/BX=000Eh
--------E-15BFDEBX0014-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - LOCK ??? MAILBOX
AX = BFDEh
BX = 0014h
CX = index of ??? mailbox
(0000h-0004h valid, but no range checking done)
Return: AX,BX destroyed
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
--------E-15BFDEBX0015-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - UNLOCK ??? MAILBOX
AX = BFDEh
BX = 0015h
CX = index of ??? mailbox
(0000h-0004h valid, but no range checking done)
Return: AX,BX destroyed
SeeAlso: AX=BFDEh/BX=0014h,AX=BFDEh/BX=0016h
--------E-15BFDEBX0016-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - CHECK IF ??? MAILBOX OWNED
AX = BFDEh
BX = 0016h
CX = index of ??? mailbox
(0000h-0004h valid, but no range checking done)
Return: AX = status
0000h no one owns mailbox
0001h mailbox has an owner
BX destroyed
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
--------E-15BFDEBX0017-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ??? MAILBOX OWNER
AX = BFDEh
BX = 0017h
CX = index of ??? mailbox
(0000h-0004h valid, but no range checking done)
Return: AX = segment of mailbox owner's handle
BX = segment of caller's task handle
SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0016h
--------E-15BFDEBXFFFD-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
AX = BFDEh
BX = FFFDh
Return: CX:DX = ???
SeeAlso: AX=BFDEh/BX=FFFEh
--------E-15BFDEBXFFFE-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
AX = BFDEh
BX = FFFEh
CX:DX = ???
SeeAlso: AX=BFDEh/BX=FFFDh
--------E-15BFDEBXFFFF-----------------------
INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - NOP
AX = BFDEh
BX = FFFFh
SeeAlso: AX=BFDEh/BX=0000h
--------B-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 #0433)
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
Dell machines contain the signature "DELL" or "Dell" at absolute FE076h
and a model byte at absolute address FE845h (see #0440)
Hewlett-Packard machines contain the signature "HP" at F000h:00F8h and
a product identifier at F000h:00FAh (see #0443)
Compaq machines can be identified by the signature string "COMPAQ" at
F000h:FFEAh, and is preceded by additional information (see #0441)
Tandy 1000 machines contain 21h in the byte at F000h:C000h and FFh in
the byte at FFFFh:000Eh; Tandy 1000SL/TL machines only provide the
first three data bytes (model/submodel/revision) in the returned
table
Toshiba laptops contain the signature "TOSHIBA" at FE010h as part of
a laptop information record at F000h:E000h (see #0444)
some AST machines contain the string "COPYRIGHT AST RESEARCH" one byte
past the end of the configuration table
the Phoenix 386 BIOS contains a second version and date string
(presumably the last modification for that OEM version) beginning at
F000h:FFD8h, with each byte doubled (so that both ROM chips contain
the complete information)
SeeAlso: AH=C7h,AH=C9h,AX=D100h,AX=D103h
Format of ROM configuration table:
Offset Size Description (Table 0433)
00h WORD number of bytes following
02h BYTE model (see #0439)
03h BYTE submodel (see #0439)
04h BYTE BIOS revision: 0 for first release, 1 for 2nd, etc.
05h BYTE feature byte 1 (see #0434)
06h BYTE feature byte 2 (see #0435)
07h BYTE feature byte 3 (see #0436)
08h BYTE feature byte 4 (see #0437)
09h BYTE feature byte 5 (see #0438)
??? (08h) (Phoenix 386 v1.10)
??? (0Fh) (Phoenix 486 v1.03 PCI)
---AWARD BIOS---
0Ah N BYTEs AWARD copyright notice
---Phoenix BIOS---
0Ah BYTE ??? (00h)
0Bh BYTE major version
0Ch BYTE minor version (BCD)
0Dh 4 BYTEs ASCIZ string "PTL" (Phoenix Technologies Ltd)
---Quadram Quad386---
0Ah 17 BYTEs ASCII signature string "Quadram Quad386XT"
Bitfields for feature byte 1:
Bit(s) Description (Table 0434)
7 DMA channel 3 used by hard disk BIOS
6 2nd 8259 installed
5 Real-Time Clock installed
4 INT 15/AH=4Fh called upon INT 09h
3 wait for external event (INT 15/AH=41h) supported
2 extended BIOS area allocated (usually at top of RAM)
1 bus is Micro Channel instead of ISA
0 system has dual bus (Micro Channel + ISA)
SeeAlso: #0433,#0435
Bitfields for feature byte 2:
Bit(s) Description (Table 0435)
7 32-bit DMA supported
6 INT 16/AH=09h (keyboard functionality) supported (see #0509)
5 INT 15/AH=C6h (get POS data) supported
4 INT 15/AH=C7h (return memory map info) supported
3 INT 15/AH=C8h (en/disable CPU functions) supported
2 non-8042 keyboard controller
1 data streaming supported
0 reserved
SeeAlso: #0433,#0436,AH=C6h,AH=C7h,AH=C8h,INT 16/AH=09h
Bitfields for feature byte 3:
Bit(s) Description (Table 0436)
7 not used
6-5 reserved
4 POST supports ROM-to-RAM enable/disable
3 SCSI subsystem supported on system board
2 information panel installed
1 IML (Initial Machine Load) system (BIOS loaded from disk)
0 SCSI supported in IML
SeeAlso: #0433,#0435,#0436
Bitfields for feature byte 4:
Bit(s) Description (Table 0437)
7 IBM "private" (set on N51SX, CL57SX)
6 system has EEPROM
5-3 ABIOS presence
001 not supported
010 supported in ROM
011 supported in RAM (must be loaded)
2 "private"
1 system supports memory split at/above 16M
0 POSTEXT directly supported by POST
SeeAlso: #0433,#0436,#0438
Bitfields for feature byte 5 (IBM):
Bit(s) Description (Table 0438)
7-5 IBM "private"
4-2 reserved
1 system has enhanced mouse mode
0 flash EPROM
SeeAlso: #0433,#0437
(Table 0439)
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 00h rev ??? Tandy 1000SL
FFh 01h rev ??? Tandy 1000TL
FFh 46h *** ??? Olivetti M15
FEh * * 08/16/82 PC XT
FEh * * 11/08/82 PC XT and Portable
FEh * * ../..x.. Toshiba laptops up to ~1987
("x"=product ID) (see #0445)
FEh 43h *** ??? Olivetti M240
FEh A6h ??? ??? Quadram Quad386
FDh * * 06/01/83 PCjr
FCh * * 01/10/84 AT models 068,099 6 MHz 20MB
FCh * * 02/25/93 Linux DOSEMU (all versions)
FCh 00h 00h ??? PC3270/AT
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 09/17/87 Tandy 3000
FCh 01h 00h ../..x.. Toshiba laptops since ~1988
("x"=product ID) (see #0445)
FCh 01h 00h 03/08/93 Compaq DESKPRO/i
FCh 01h 00h various Compaq DESKPRO, SystemPro, ProSignia
FCh 01h 00h 07/20/93 Zenith Z-Lite 425L
FCh 01h 00h 04/09/90 AMI BIOS
FCh 01h 20h 06/10/92 AST
FCh 01h 30h ??? Tandy 3000NL
FCh 01h ??? ??? Compaq 286/386
FCh 02h 00h 04/21/86 PC XT-286
FCh 02h 00h various Compaq LTE Lite
FCh 02h 00h 08/05/93 Compaq Contura 486/486c/486cx
FCh 02h 00h 08/11/88 SoftWindows 1.0.1 (Power Macintosh)
FCh 04h 00h 02/13/87 ** PS/2 Model 50 (10 MHz/1 ws 286)
FCh 04h 01h 05/09/87 PS/2 Model 50 (10 Mhz 286, LW-type 32)
FCh 04h 02h ??? PS/2 Model 50
FCh 04h 02h 01/28/88 PS/2 Model 50Z (10 Mhz 286, LW-type 33)
FCh 04h 03h 04/18/88 PS/2 Model 50Z (10 MHz/0 ws 286)
FCh 04h 04h ??? PS/2 Model 50Z
FCh 05h 00h 02/13/87 ** PS/2 Model 60 (10 MHz 286)
FCh 06h 00h ??? IBM 7552-140 "Gearbox"
FCh 06h 01h ??? IBM 7552-540 "Gearbox"
FCh 08h *** ??? Epson, unknown model
FCh 08h 00h ??? PS/2 Model 25/286
FCh 09h 00h ??? PS/2 Model 25 (10 MHz 286)
FCh 09h 00h 08/25/88 PS/2 Model 30 286 (10 Mhz, LW-type 37)
FCh 09h 02h 06/28/89 PS/2 Model 30-286
FCh 09h 02h 06/28/89 PS/2 Model 25 286 (10 Mhz, LW-type 37)
FCh 0Bh 00h 12/01/89 PS/1 (LW-Type 44)
FCh 0Bh 00h 02/16/90 PS/1 Model 2011 (10 MHz 286)
FCh 20h 00h 02/18/93 Compaq ProLinea
FCh 30h *** ??? Epson, unknown model
FCh 31h *** ??? Epson, unknown model
FCh 33h *** ??? Epson, unknown model
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
FCh 81h 01h ??? "OEM machine"
FCh 82h 01h ??? "OEM machine"
FCh 94h 00h ??? Zenith 386
FBh 00h 01h 01/10/86 PC XT-089, Enh Keyb, 3.5" support
FBh 00h 01h 05/13/94 HP 200LX 2MB BIOS 1.01 A D german
FBh 00h 02h 05/09/86 PC XT
FBh 00h 04h 08/19/93 HP 100LX 1MB BIOS 1.04 A
FBh 4Ch *** ??? Olivetti M200
FAh 00h 00h 09/02/86 PS/2 Model 30 (8 MHz 8086)
FAh 00h 01h 12/12/86 PS/2 Model 30
FAh 00h 02h 02/05/87 PS/2 Model 30
FAh 01h 00h 06/26/87 PS/2 Model 25/25L (8 MHz 8086)
FAh 30h 00h ??? IBM Restaurant Terminal
FAh 4Eh *** ??? Olivetti M111
FAh FEh 00h ??? IBM PCradio 9075
F9h 00h 00h 09/13/85 PC Convertible
F9h FFh 00h ??? PC Convertible
F8h 00h 00h 03/30/87 ** PS/2 Model 80 (16MHz 386)
F8h 00h 00h ??? PS/2 Model 75 486 (33Mhz 486)
F8h 01h 00h 10/07/87 PS/2 Model 80 (20MHz 386)
F8h 02h 00h ??? PS/2 Model 55-5571
F8h 04h 00h 01/29/88 PS/2 Model 70 (20 Mhz 386DX,LW-type 33)
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 05h 00h ??? IBM PC 7568
F8h 06h 00h ??? PS/2 Model 55-5571
F8h 07h 00h ??? IBM PC 7561/2
F8h 07h 01h ??? PS/2 Model 55-5551
F8h 07h 02h ??? IBM PC 7561/2
F8h 07h 03h ??? PS/2 Model 55-5551
F8h 09h 00h 01/29/88 PS/2 Model 70 16MHz 386DX, type 1 sysbd
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 09h 04h 12/15/89 PS/2 Model 70 (16 Mhz 386, LW-type 33)
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 (16 MHz 386SX)
F8h 0Dh 00h ??? PS/2 Model 70 25MHz, type 3 system brd
F8h 0Dh 00h 06/08/88 PS/2 Model 70 386 25MHz, type 3 sys brd
F8h 0Dh 01h 02/20/89 PS/2 Model 70 386 25MHz, type 3 sys brd
F8h 0Dh ??? 12/01/89 PS/2 Model 70 486 25Mhz, type 3 sys brd
F8h 0Eh 00h ??? PS/1 486SX
F8h 0Fh 00h ??? PS/1 486DX
F8h 10h 00h ??? PS/2 Model 55-5551
F8h 11h 00h 10/01/90 PS/2 Model 90 XP (25 MHz 486)
F8h 12h 00h ??? PS/2 Model 95 XP
F8h 13h 00h 10/01/90 PS/2 Model 90 XP (33 MHz 486)
F8h 14h 00h 10/01/90 PS/2 Model 90-AK9 (25 MHz 486), 95 XP
F8h 15h 00h ??? PS/2 Model 90 XP
F8h 16h 00h 10/01/90 PS/2 Model 90-AKD / 95XP486 (33MHz 486)
F8h 17h 00h ??? PS/2 Model 90 XP
F8h 19h 05h ??? PS/2 Model 35/35LS or 40 (20 MHz 386SX)
F8h 19h 05h 03/15/91 PS/2 Model 35 SX / 40 SX (LW-type 37)
F8h 19h 06h 04/04/91 PS/2 Model 35 SX / 40 SX (LW-type 37)
F8h 1Ah 00h ??? PS/2 Model 95 XP
F8h 1Bh 00h 09/29/89 PS/2 Model 70 486 (25 Mhz 386DX)
F8h 1Bh 00h 10/02/89 PS/2 Model 70-486 (25 MHz 486)
F8h 1Ch 00h 02/08/90 PS/2 Model 65-121 / 65 SX (16MHz 386SX)
F8h 1Eh 00h 02/08/90 PS/2 Model 55LS (16 MHz 386SX)
F8h 23h 00h ??? PS/2 Model L40 SX
F8h 23h 01h ??? PS/2 Model L40 SX (20 MHz 386SX)
F8h 23h 02h 02/27/91 PS/2 Model L40 SX (20Mhz386SX,LW-typ37)
F8h 25h 00h ??? PS/2 Model 57 SLC
F8h 25h 06h ??? PS/2 Model M57 (20 MHz 386SLC)
F8h 26h 00h ??? PS/2 Model 57 SX
F8h 26h 01h ??? PS/2 Model 57 (20 MHz 386SX)
F8h 26h 02h 07/03/91 PS/2 Model 57 SX (20Mhz 386SX, SCSI)
F8h 28h 00h ??? PS/2 Model 95 XP
F8h 29h 00h ??? PS/2 Model 90 XP
F8h 2Ah 00h ??? PS/2 Model 95 XP (50 MHz 486)
F8h 2Bh 00h ??? PS/2 Model 90 / 90XP486 (50 MHz 486)
F8h 2Ch 00h ??? PS/2 Model 95 XP
F8h 2Ch 01h ??? PS/2 Model 95 (20 MHz 486SX)
F8h 2Dh 00h ??? PS/2 Model 90 XP (20 MHz 486SX)
F8h 2Eh 00h ??? PS/2 Model 95 XP
F8h 2Eh 00h ??? PS/2 Model 95 XP486 (20 Mhz 486SX)
F8h 2Eh 01h ??? PS/2 Model 95 (20 MHz 486SX + 487SX)
F8h 2Fh 00h ??? PS/2 Model 90 XP (20 MHz 486SX + 487SX)
F8h 30h 00h ??? PS/1 Model 2121 (16 MHz 386SX)
F8h 33h 00h ??? PS/2 Model 30-386
F8h 34h 00h ??? PS/2 Model 25-386
F8h 36h 00h ??? PS/2 Model 95 XP
F8h 37h 00h ??? PS/2 Model 90 XP
F8h 38h 00h ??? PS/2 Model 57
F8h 39h 00h ??? PS/2 Model 95 XP
F8h 3Fh 00h ??? PS/2 Model 90 XP
F8h 40h 00h ??? PS/2 Model 95 XP
F8h 41h 00h ??? PS/2 Model 77
F8h 45h 00h ??? PS/2 Model 90 XP (Pentium)
F8h 46h 00h ??? PS/2 Model 95 XP (Pentium)
F8h 47h 00h ??? PS/2 Model 90/95 E (Pentium)
F8h 48h 00h ??? PS/2 Model 85
F8h 49h 00h ??? PS/ValuePoint 325T
F8h 4Ah 00h ??? PS/ValuePoint 425SX
F8h 4Bh 00h ??? PS/ValuePoint 433DX
F8h 4Eh 00h ??? PS/2 Model 295
F8h 50h 00h ??? PS/2 Model P70 (8573) (16 MHz 386)
F8h 50h 01h 12/16/89 PS/2 Model P70 (8570-031)
F8h 52h 00h ??? PS/2 Model P75 (33 MHz 486)
F8h 56h 00h ??? PS/2 Model CL57 SX
F8h 57h 00h ??? PS/2 Model 90 XP
F8h 58h 00h ??? PS/2 Model 95 XP
F8h 59h 00h ??? PS/2 Model 90 XP
F8h 5Ah 00h ??? PS/2 Model 95 XP
F8h 5Bh 00h ??? PS/2 Model 90 XP
F8h 5Ch 00h ??? PS/2 Model 95 XP
F8h 5Dh 00h ??? PS/2 Model N51 SLC
F8h 5Eh 00h ??? IBM ThinkPad 700
F8h 61h *** ??? Olivetti P500
F8h 62h *** ??? Olivetti P800
F8h 80h 00h ??? PS/2 Model 80 (25 MHz 386)
F8h 80h 01h 11/21/89 PS/2 Model 80-A21 (25 Mhz 386)
F8h 81h 00h ??? PS/2 Model 55-5502
F8h 87h 00h ??? PS/2 Model N33SX
F8h 88h 00h ??? PS/2 Model 55-5530T
F8h 97h 00h ??? PS/2 Model 55 Note N23SX
F8h 99h 00h ??? PS/2 Model N51 SX
F8h F2h 30h ??? Reply Model 32
F8h F6h 30h ??? Memorex Telex
F8h FDh 00h ??? IBM Processor Complex (with VPD)
F8h ??? ??? ??? PS/2 Model 90 (25 MHz 486SX)
F8h ??? ??? ??? PS/2 Model 95 (25 MHz 486SX)
F8h ??? ??? ??? PS/2 Model 90 (25 MHz 486SX + 487SX)
F8h ??? ??? ??? PS/2 Model 95 (25 MHz 486SX + 487SX)
E4h ??? ??? ??? Triumph Adler PC/XT
E1h ??? ??? ??? ??? (checked for by DOS4GW.EXE)
E1h 00h 00h ??? PS/2 Model 55-5530 Laptop
D9h ??? ??? ??? Peacock XT
9Ah * * ??? Compaq XT/Compaq Plus
30h ??? ??? ??? Sperry PC
2Dh * * ??? Compaq PC/Compaq Deskpro
??? 56h ??? ??? Olivetti, unknown model
??? 74h ??? ??? Olivetti, unknown model
Notes: BIOS dates may vary without changes to the revision code, especially
for non-IBM machines
* This BIOS call is not implemented in these early versions or under
Linux's DOSEMU. Read the Model byte at F000h:FFFEh and BIOS date at
F000h:FFF5h instead.
** These BIOS versions require the DASDDRVR.SYS patches.
*** These Olivetti and Epson machines store the submodel in the byte at
F000h:FFFDh.
SeeAlso: #0433,#0440
(Table 0440)
Values for Dell model byte:
02h Dell 200
03h Dell 300
05h Dell 220
06h Dell 310
07h Dell 325
09h Dell 310A
0Ah Dell 316
0Bh Dell 220E
0Ch Dell 210
0Dh Dell 316SX
0Eh Dell 316LT
0Fh Dell 320LX
11h Dell 425E
SeeAlso: #0433,#0439
Format of Compaq product information:
Address Size Description (Table 0441)
F000h:FFE4h BYTE product family code (first byte)
F000h:FFE4h BYTE Point release number
F000h:FFE4h BYTE ROM version code
F000h:FFE4h BYTE product family code (second byte)
F000h:FFE8h WORD BIOS type code
SeeAlso: #0442,#0444
Format of Hewlett-Packard ROM ID at F000h:00F8h:
Offset Size Description (Table 0442)
00h 2 BYTEs signature "HP" (48h 50h)
02h 2 BYTEs 00h 00h
04h BYTE secondary code revision
05h BYTE primary code revision
06h BYTE date code, year-1960 (BCD)
07h BYTE date code, week of year (BCD)
SeeAlso: #0441,#0443
Bitfields for Hewlett-Packard product identifier:
Bit(s) Description (Table 0443)
4-0 machine code
0 original Vectra
1 ES/12
2 RS/20
3 Portable/CS
4 ES
5 CS
6 RS/16
other reserved
7-5 CPU type
0 = 80286
1 = 8088
2 = 8086
3 = 80386
other reserved
SeeAlso: #0442
Format of Toshiba laptop information:
Offset Size Description (Table 0444)
00h 8 BYTEs ASCII product number (e.g. "T2200SX ")
08h 8 BYTEs ASCII version number (e.g. "V1.20 ")
10h 8 BYTEs ASCII signature string "TOSHIBA "
18h 8 BYTEs always zero???
20h DWORD -> built-in BIOS setup program entry point or 0000h:0000h
Note: this record is located at F000h:E000h
SeeAlso: #0441,#0442
(Table 0445)
Values for Toshiba product ID:
model prodID version date product number
FEh 29h ../..).. Toshiba T1000LE
FEh 2Ah ../..*.. Toshiba T1000XE
FEh 2Bh ../..+.. Toshiba T1000SE
FEh 2Ch ../..,.. Toshiba T1000
FEh 2Dh ../..-.. Toshiba T1200F
FEh 2Dh V4.00 12/26-87 Toshiba T1200H
FEh 2Eh ../..... Toshiba T1100+
FCh 22h ../..".. Toshiba T8500
FCh 26h 01/15&88 Toshiba T5200
FCh 27h ../..'.. Toshiba T5100
FCh 28h ../..(.. Toshiba T2000
FCh 2Ah 12/26*89 Toshiba T1200XE
FCh 2Bh ../..+.. Toshiba T1600
FCh 2Ch ../..,.. Toshiba T3100e
FCh 2Dh ../..-.. Toshiba T3200
FCh 2Fh ../../.. Toshiba T3100
FCh 34h V1.50 02/04494 Toshiba T100X
FCh 38h ../..8.. Toshiba T2000SXe
FCh 39h V1.20 09/16991 Toshiba T2200SX
FCh 39h V1.40 10/01992 Toshiba T2200SX
FCh 3Ch V1.50 01/28<91 Toshiba T2000SX
FCh 3Dh ../..=.. Toshiba T3200SXC
FCh 3Eh ../..>.. Toshiba T3100SX
FCh 3Fh ../..?.. Toshiba T3200SX
FCh 40h ../..@.. Toshiba T4500C
FCh 41h V1.20 04/05A92 Toshiba T4500 ("T4500SXC" ???)
FCh 45h V3.20 04/14E92 Toshiba T4400SX ("C" or "SXC" on cover)
FCh 45h 01/13E93 Toshiba T4400SXC
FCh 46h * ../..F.. Toshiba T6400
FCh 46h * ../..F.. Toshiba T6400C
FCh 5Fh V1.40 01/18_94 Toshiba T3300SL
FCh 69h ../..i.. Toshiba T1900C ("T1900CT" ???)
FCh 6Ah V1.30 05/19j93 Toshiba T1900 ("T1900S" ???)
FCh 6Dh V1.10 12/25m92 Toshiba T1850C
FCh 6Eh V1.00 08/19n92 Toshiba T1850
FCh 6Eh V1.10 12/25n92 Toshiba T1850
FCh 6Fh V1.00 07/17o92 Toshiba T1800
FCh 6Fh V1.10 12/25o92 Toshiba T1800
FCh 7Eh V1.30 06/17~93 Toshiba T4600C
FCh 7Fh V1.40 11/10x94 Toshiba T4600
FCh 8Ah V1.30 10/22x93 Toshiba T6600C
FCh 91h V1.20 07/15x94 Toshiba T2400CT
FCh 91h V5.00 07/28x95 Toshiba T2400CS/CT
FCh 92h V5.00 07/28x95 Toshiba T3600CT
FCh 96h * V1.40 12/08x94 Toshiba T200
FCh 96h * V1.50 12/08x94 Toshiba T200CS (T200)
FCh 97h ../..x.. Toshiba T4800CT
FCh 98h * V1.10 12/22x93 Toshiba T1910
FCh 98h * V2.40 07/12x94 Toshiba T1910/CS (T19XX)
FCh 99h ../..x.. Toshiba T4700CS
FCh 9Bh V2.30 01/31x94 Toshiba T4700CT
FCh 9Bh V2.50 03/22x94 Toshiba T4700CT
FCh 9Bh V5.00 07/28x95 Toshiba T4700CT
FCh 9Ch V1.30 01/11x94 Toshiba T1950CT
FCh 9Ch V2.50 07/22x94 Toshiba T1950CT (T19XX)
FCh 9Dh * V2.40 07/12x94 Toshiba T1950/CS (T19XX)
FCh 9Eh * V1.20 12/25x93 Toshiba T3400
FCh 9Eh * V1.30 03/22x94 Toshiba T3400/CT
FCh B5h ** V5.10 08/25x95 Toshiba T2110/CS (T21XX)
FCh B5h V5.10 08/25x95 Toshiba T2130CS/CT (T21XX)
FCh BAh V1.30 02/16x95 Toshiba T2150CDS/CDT
FCh BAh V5.00 07/27x95 Toshiba T2150CDS/CDT (T2150)
FCh BBh ** V1.30 01/25x95 Toshiba T2100/CS/CT
FCh BBh ** V5.00 07/27x95 Toshiba T2100/CS/CT
FCh BCh V1.20 12/05x94 Toshiba T2450CT
FCh BCh V5.00 07/28x95 Toshiba T2450CT
FCh BEh V5.00 07/28x95 Toshiba T4850CT
FCh C0h V5.20 05/30x96 Toshiba 420CDS/CDT
FCh C1h V5.20 03/27x96 Toshiba 100CS
FCh C3h V5.60 07/19x96 Toshiba 710CDT / 720CDT
FCh C6h V5.30 11/30x95 Toshiba 410CS/CDT
FCh CAh V5.10 08/18x95 Toshiba 400CS/CDT
FCh CAh V5.40 12/18x95 Toshiba 400CS/CDT
FCh CBh V5.10 09/01x95 Toshiba 610CT
FCh CCh V5.50 06/13x96 Toshiba 700CS/CT
FCh CFh V5.00 08/07x95 Toshiba T4900CT
FCh DCh V5.10 06/17x96 Toshiba 650CT
FCh DCh V5.10 05/10x96 Toshiba 110CS/CT
FCh DDh V5.10 05/10x96 Toshiba 110CS/CT
FCh DFh V5.20 05/27x96 Toshiba 500CS/CDT
FCh ??? V5.??? ../..x.. Toshiba 620CT
FCh ??? V5.??? ../..x.. Toshiba 660CDT
FCh ??? V5.30 11/22/96 Toshiba 730CDT
FCh ??? V6.00 09/20/96 Toshiba 200CDS/CDT
FCh ??? V6.20 11/14/96 Toshiba 430CDS/CDT
FCh ??? V6.40 12/05/96 Toshiba 510CS/CDT
Notes: the 8-bit ASCII graphics character in the "date" column above
has been substituted by "x" if larger than 80h
BIOS version numbers and dates may vary, esp. due to harddisk and
(flash) BIOS upgrades; all BIOS versions 5.xx are flash updates
for Windows95, the product number may indicate the series only
(T21XX) or does no longer contain the exact type suffix (CS/CT)
the most recent versions of the BIOS have stopped including the
product ID code in the BIOS date
[*] These models have monochrome and color versions which can be
distinguished with INT 42/AX=7503h (WD90C24 chipset)
[**] These models have monochrome and color versions which can be
distinguished with INT 10/AX=5F50h (CT655xx chipset)
models not found here like T21x5 are variants differing only in
bundled software
SeeAlso: #0439
--------B-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 (see #M001,#M004,#M005)
SeeAlso: AH=04h"ABIOS",MEM 0040h:000Eh"DATA"
--------M-15C200-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - ENABLE/DISABLE
AX = C200h
BH = new state
00h disabled
01h enabled
Return: CF set on error
AH = status (see #0446)
Note: IBM classifies this function as required
SeeAlso: AX=C201h,AX=C207h,AX=C208h
(Table 0446)
Values for pointing device function status:
00h successful
01h invalid function
02h invalid input
03h interface error
04h need to resend
05h no device handler installed
--------M-15C201-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - RESET
AX = C201h
Return: CF set on error
AH = status (see #0446)
CF clear if successful
BH = device ID
BL = value returned by attached device after reset
AAh if device is a mouse
Notes: after successful completion of this call, the pointing device is set
as follows: disabled, sample rate 100 Hz, resolution 4 counts/mm,
scaling 1:1, unchanged data package size
IBM classifies this function as required
SeeAlso: INT 33/AX=0000h,AX=C200h,AX=C207h
--------M-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 #0446)
SeeAlso: INT 33/AX=001Ch
--------M-15C203-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET RESOLUTION
AX = C203h
BH = resolution (see #0447)
Return: CF set on error
AH = status (see #0446)
(Table 0447)
Values for pointing device resolution:
00h one count per mm
01h two counts per mm
02h four counts per mm
03h eight counts per mm
--------M-15C204-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - GET TYPE
AX = C204h
Return: CF set on error
AH = status (see #0446)
CF clear if successful
BH = device ID
--------M-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 #0446)
Note: the pointing device is set as follows: disabled, 100 Hz sample rate,
resolution 4 counts/mm, scaling 1:1
SeeAlso: AX=C201h
--------M-15C206-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - EXTENDED COMMANDS
AX = C206h
BH = subfunction
00h return device status
Return: BL = pointing device status (see #0448)
CL = resolution (see #0447)
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 #0446)
Bitfields for pointing device status:
Bit(s) Description (Table 0448)
0 right button pressed
1 reserved
2 left button pressed
3 reserved
4 0 if 1:1 scaling, 1 if 2:1 scaling
5 device enabled
6 0 if stream mode, 1 if remote mode
7 reserved
--------M-15C207-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET DEVICE HANDLER ADDR
AX = C207h
ES:BX -> FAR user device handler or 0000h:0000h to cancel
Return: CF set on error
AH = status (see #0446)
Note: when the subroutine is called, it is passed the following values on
the stack; the handler should return with a FAR return without
popping the stack:
WORD 1: status (see #0449)
WORD 2: X data (high byte = 00h)
WORD 3: Y data (high byte = 00h)
WORD 4: 0000h
SeeAlso: INT 33/AX=000Ch
Bitfields for pointing device status:
Bit(s) Description (Table 0449)
15-8 reserved (0)
7 Y data overflowed
6 X data overflowed
5 Y data is negative
4 X data is negative
3 reserved (1)
2 reserved (0)
1 right button pressed
0 left button pressed
--------M-15C208-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE - WRITE TO POINTER PORT
AX = C208h
BL = byte to be sent to the pointing device
Note: IBM classifies this function as optional
SeeAlso: AX=C200h,AX=C209h
--------M-15C209-----------------------------
INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE - READ FROM POINTER PORT
AX = C209h
Return: BL = first byte read from pointing device
CL = second byte read
DL = third byte read
Note: IBM classifies this function as optional
SeeAlso: AX=C200h,AX=C208h
--------M-15C2-------------------------------
INT 15 - IBM SurePath BIOS - Officially "Private" Function
AH = C2h
AL = 10h-23h
SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
--------B-15C3------------------------------
INT 15 - SYSTEM - ENABLE/DISABLE WATCHDOG TIMEOUT (PS50+)
AH = C3h
AL = function
00h disable PS/2 watchdog timer
01h enable PS/2 watchdog timer
BX = timer counter (0001h-00FFh)
02h disable Gearbox system
03h enable Gearbox system
Return: CF set on error
CF clear if successful
Note: the watchdog timer generates an NMI
SeeAlso: INT 21/AH=2Bh/CX=6269h"WDTSR"
--------B-15C4-------------------------------
INT 15 - SYSTEM - PROGRAMMABLE OPTION SELECT (PS50+)
AH = C4h
AL = subfunction
00h return base POS register address
01h enable selected slot for setup
BL = slot number (1 to 8)
02h disable setup for all slots (enable adapter)
Return: CF set on error
DX = base POS register address (if subfunction 00h)
SeeAlso: AH=C6h
--------B-15C5-------------------------------
INT 15 UC - OS HOOK - 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
--------B-15C6-------------------------------
INT 15 U - later PS/2 models - GET POS DATA
AH = C6h
???
Return: ???
Notes: this function is referenced by name and number in some IBM BIOS manuals
IBM reports that "there are a number of problems with this call" and
does not recommend its use.
SeeAlso: AH=C4h
--------B-15C7-------------------------------
INT 15 - SYSTEM - later PS/2s - RETURN MEMORY-MAP INFORMATION
AH = C7h
DS:SI -> user supplied memory map table (see #0450)
Notes: call AH=C0h and examine bit 4 of feature byte 2 to check if this
function is supported
IBM classifies this function as optional
Return: CF set on error, clear if successful
SeeAlso: AH=C0h,AH=C9h,AH=D1h,AX=E820h
Format of memory-map table structure:
Offset Size Description (Table 0450)
00h WORD length of table (excluding this word)
02h DWORD local memory between 1M and 16M, in 1K blocks
06h DWORD local memory between 16M and 4G, in 1K blocks
0Ah DWORD system memory between 1M and 16M, in 1K blocks
0Eh DWORD system memory between 16M and 4G, in 1K blocks
12h DWORD cacheable memory between 1M and 16M, in 1K blocks
16h DWORD cacheable memory between 16M and 4G, in 1K blocks
1Ah DWORD 1K blocks before start of non-system memory between 1M and 16M
1Eh DWORD 1K blocks before start of non-system memory between 16M and 4G
22h WORD start segment of largest free block from C0000h-DFFFFh
24h WORD size of largest free block
26h DWORD reserved
--------B-15C8-------------------------------
INT 15 - SYSTEM - ENABLE/DISABLE PROCESSOR FUNCTIONS
AH = C8h
AL = function
00h disable L1 cache
01h enable L1 cache
---models 90 and 95 only---
02h disable L2 cache
03h enable L2 cache
04h disable both caches
05h enable both caches
06h return status of both caches
07h-FFh Reserved
Return: CF set on error
CF clear if successful
AH = status (see #0451)
For subfunction 06h only:
BL = status of L1 cache
00h enabled
01h disabled or not installed
02h disabled due to test error (can not be enabled)
BH = status of L2 cache (same codes as BL)
Notes: supported by at least PS/2 70, 70/486, 80-A21, 90, 95
call AH=C0h and examine bit 3 of feature byte 2 to check if this
function is supported.
on a 486 system, any external caches must be disabled when the
on-chip cache (L1) is disabled.
SeeAlso: AH=C0h
(Table 0451)
Values for status:
00h operation successful
01h function choice (in AL) is invalid
02h NVRAM data is invalid
03h cache test error
04h (90 and 95 only) cannot perform operation requested due to state of
other cache (also see note above)
05h no L2 cache is present
07h invalid input values
09h CPU in protected mode
--------B-15C9-------------------------------
INT 15 - newer PS/2; various BIOSes - GET CPU TYPE AND MASK REVISION
AH = C9h
AL = 10h (may be required on some non-PS BIOSes)
Return: CF clear if successful
AH = 00h
CH = CPU type (see #0452)
CL = mask revision (stepping level) (see #0453)
CF set on error
AH = status (80h,86h = function not supported)
Notes: the BIOS must save DX at startup in order to be able to support this
call; PS/2 Models 56, 57, 90, and 95 are known to support it
the PS/2 BIOS merely reads CMOS locations 190h (type) and 191h (rev)
IBM classifies this function as optional
SeeAlso: AX=D100h,AX=DA92h,MEM 0040h:00BCh
(Table 0452)
Values for CPU type:
03h 80386DX or clone
04h 80486
05h Pentium
23h 80386SX or clone
33h Intel i376
43h 80386SL or clone
A3h IBM 386SLC
A4h IBM 486SLC
(Table 0453)
Values for stepping level:
---i376 (type code 33h)---
05h A0
08h B
---80386/80386DX (type code 03h)---
03h Intel B1 to B10, Am386DX/DXL step A
05h Intel D0
08h Intel D1/D2/E1, Am386DX/DXL step B
---80386SL (type code 43h)---
05h A
1xh B
---80386SX (type code 23h)---
04h Intel A0
05h Intel B, Am386SX/SXL step A1
08h Intel C/D1, Am386SX/SXL step B
09h Intel 386CX/386EX/386SXstatic step A
---80486DX (type code 04h)---
00h Intel A0/A1
01h Intel B2 to B6
02h Intel C0
03h Intel C1
04h Intel D0
10h Intel cA2/cA3, Cx486SLC step A
11h Intel cB0/cB1
---486DX2 (type code 04h)---
02h Am486DX2 (unknown stepping)
32h Intel DX2/Overdrive steps A0 to A2
33h Intel DX2/Overdrive step B1
---486SX (type code 04h)---
20h Intel A0
22h Intel B0
27h Intel cA0
28h Intel cB0
---486SL (type code 04h)---
40h Intel A
---IntelSX2 (type code 04h)---
5xh Intel A
---IntelDX4 (type code 04h)---
8xh Intel A
---487SX (type code 04h)---
20h Intel A0
21h Intel B0
---Pentium (type code 05h)---
0xh Intel P5 steps Ax (1993)
1xh Intel P5 steps Bx (1994)
2xh Intel P54C step A
---RapidCAD (type code 03h)---
40h A
--------B-15CA-------------------------------
INT 15 U - PS/2 Model 95 - READ/WRITE CMOS MEMORY
AH = CAh
AL = function
00h read CMOS
Return: CL = value of CMOS location
01h write CMOS
CL = new value for CMOS location
BL = CMOS location (0Eh-3Fh)
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (see #0454)
Note: writes do not update the CMOS checksum
(Table 0454)
Values for CMOS read/write error code:
01h CMOS lost power or has invalid checksum
03h specified location out of range (too high)
04h specified location out of range (too low)
80h unsupported function (PC)
86h unsupported function (XT)
--------B-15CB-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
AH = CBh
???
Return: ???
--------B-15CC-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
AH = CCh
???
Return: ???
--------V-15CCCC-----------------------------
INT 15 U - Toshiba laptops - VCHAD.EXE - INSTALLATION CHECK
AX = CCCCh
Return: AX = ABCDh if installed
Note: supported by Toshiba VGA change display utility VCHAD.EXE ver 2.90+
older versions have the string "VCHAD" 2 bytes after the address of
the INT 15 handler which is hooked by all versions for the SysReq key
SeeAlso: AH=85h
--------B-15CD-------------------------------
INT 15 U - PS/2 Model 95 - RESERVED
AH = CDh
???
Return: ???
--------B-15CE--BL00-------------------------
INT 15 - later PS/2s - ALLOCATE DMA ARBITRATION LEVEL
AH = CEh
BL = 00h-0Eh arbitration level to be allocated
0Fh-FFh reserved
AL = option byte
bit 7-1: reserved (0)
bit 0: 0 = need DMA channel for arbitration level requested
1 = no channel required for arbitration level
Return: CF set on error
AH = status (80h,86h = function not supported)
CF clear on success
AL = channel number
00h-07h channel number allocated for the arbiration level
08h-FEh reserved
FFh no channel requested for arbitration level
AH = status (see #0455)
Notes: arbitration level 00h has the highest priority, 0Eh the lowest
to perform a DMA transfer operation, be sure to call this function
first, and call AH=CFh afterward. Failure to use this function
can cause unpredictable results.
SeeAlso: AH=CFh
(Table 0455)
Values for DMA arbitration status:
00h success
01h arbitration level not available
02h channel not available
03h invalid arbitration level passed
--------B-15CF-------------------------------
INT 15 - later PS/2s - DEALLOCATE DMA ARBITRATION LEVEL
AH = CFh
BL = arbitration level to be deallocated (see AH=CEh)
Return: CF set on error
AH = status (80h,86h = function not supported)
CF clear on success
AH = status
00h success
04h arbitration level not allocated
SeeAlso: AH=CEh
--------B-15D0-------------------------------
INT 15 - later PS/2s - RESERVED
AH = D0h
???
Return: ???
----------15D042BL00-------------------------
INT 15 R - Intel Pentium Pro BIOS UPDATE - INSTALLATION CHECK
AX = D042h
BL = 00h
Return: CF clear if successful
CF set on error
AH = status
00h successful
EBX:ECX = signature "INTELPEP"
EDX = BIOS update loader version
SI = number of 2K update blocks which can be recorded in NVRAM
86h not implemented
AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
00h successful
Program: the Pentium Pro BIOS update allows the system BIOS or other software
to install a microcode patch into the Pentium Pro processor
Notes: this API must be called from actual real mode, not V86 mode
at least 32K stack space must be available when this function is called
SeeAlso: AX=D042h/BL=01h,AX=D042h/BL=02h,AX=D042h/BL=03h
SeeAlso: @xxxxh:xxxxh"Intel BIOS Upgrade",MSR 00000079h
----------15D042BL01-------------------------
INT 15 R - Intel Pentium Pro BIOS UPDATE - WRITE BIOS UPDATE AREA
AX = D042h
BL = 01h
ES:DI -> microcode update block (see #0457)
CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
Return: CF clear if successful
CF set on error
AH = status (see #0456)
AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
00h successful
Notes: a microcode update may also be initiated by a WRMSR instruction
with ECX=0079h, EDX=00000000h, and EAX=linear address of update
block (see #0457)
at least 32K stack space must be available when this function is called
SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h,MSR 00000079h
(Table 0456)
Values for Pentium Pro BIOS update status:
00h successful
86h not implemented
90h unable to erase NVRAM device
91h unable to write to NVRAM device
92h unable to read storage
93h NVRAM is full
94h specified processor stepping is not present in system
95h invalid header or loader version
96h wrong checksum in header
97h processor rejected the update
98h the same or a more recent update is already stored
99h update block number was out of range
Format of Pentium Pro microcode update block:
Offset Size Description (Table 0457)
00h DWORD update header version number (currently 00000001h)
FFFFFFFFh = unused block
04h DWORD revision number of this microcode update
08h DWORD update creation date, as BCD mmddyyyy (month,day,year)
0Ch DWORD family/model/stepping of processor to which update applied
(same value as returned by CPUID instruction)
10h DWORD checksum (used to force sum of all 512 DWORDs of the update
block to 00000000h)
14h DWORD revision number of loader needed to install update
(currently 00000001h)
18h 24 BYTEs reserved for future expansion
30h 2000 BYTEs encrypted microcode data
SeeAlso: MSR 00000079h,OPCODE "CPUID"
----------15D042BL02-------------------------
INT 15 R - Intel Pentium Pro BIOS UPDATE - BIOS UPDATE CONTROL
AX = D042h
BL = 02h
BH = function
01h enable update loading at initialization time
02h check whether update loading is enabled
CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
Return: CF clear if successful
CF set on error
AH = status (see #0456)
00h successful
BL = enabled/disabled flag
86h not implemented
AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
00h successful
Notes: this API must be called from actual real mode, not V86 mode
at least 32K stack space must be available when this function is called
there is no call to disable update loading due to security risks; the
BIOS setup can disable loading
SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h
----------15D042BL03-------------------------
INT 15 R - Intel Pentium Pro BIOS UPDATE - READ BIOS UPDATE AREA
AX = D042h
BL = 03h
ES:DI -> buffer for microcode update block (see #0457)
ECX = two real-mode 64K scratchpad segments (upper and lower words)
DX = segment of 64K scratchpad area for BIOS use
SI = zero-based index number of update block to retrieve
Return: CF clear if successful
CF set on error
AH = status
00h successful
ES:DI buffer filled with 2048-byte update block
86h not implemented
AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
00h successful
Program: the Pentium Pro BIOS update allows the system BIOS or other software
to install a microcode patch into the Pentium Pro processor
Notes: this API must be called from actual real mode, not V86 mode
at least 32K stack space must be available when this function is called
SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=01h,AX=D042h/BL=03h
--------B-15D100DX0000-----------------------
INT 15 - later PS/2s - GET NUMBER OF DEVICE DESCRIPTOR TABLE (DDT) ENTRIES
AX = D100h
DX = 0000h (reserved, must set to 0)
Return: BL = size of one DDT entry, in bytes
CX = number of DDT entries
AH = return code (see #0458)
CF set on error
CF clear on success
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D101h,AX=D102h,AX=D103h,AX=D104h
(Table 0458)
Values for return code:
00h success
01h requested DDT entry not found
02h DDT data not valid
86h function not supported
--------B-15D101-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY NUMBER
AX = D101h
BX = number of requested entry (starting with 1)
DX = 0000h (reserved, must be set to 0)
ES:DI -> buffer to contain DDT entry (see #0459)
Return: AH = return code (see #0458)
CF set on error
CF clear on success
ES:DI buffer filled with DDT entry
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D102h,AX=D104h
Format of Device Descriptor Table (DDT):
Offset Size Description (Table 0459)
00h BYTE bits 7-4: reserved (set to 0)
bits 3-0: slot of device (0 = system board)
01h BYTE bits 7-4: second interrupt for this device (0 = none)
bits 3-0: first interrupt for this device (0 = none)
02h BYTE bits 7-4: second arbitration level for this device
bits 3-0: first arbitration level for this device
03h WORD DDT indicators (see #0460)
05h BYTE reserved (0)
06h WORD device ID (0 = none)
08h WORD starting address of first I/O block (0 = none)
0Ah WORD starting address of second I/O block (0 = none)
OCh WORD starting address of third I/O block (0 = none)
OEh DWORD start of first non-system memory block (0 = none)
12h WORD size of first non-system memory block (in kilobytes)
14h DWORD start of second non-system memory block (0 = none)
18h WORD size of second non-system memory block (in kilobytes)
1Ah BYTE implementation identifier of the device
1Bh BYTE implementation revision level of the device
Note: I/O block addresses and non-system memory addresses are listed in
ascending order in each DDT entry.
Bitfields for DDT indicators:
Bit(s) Description (Table 0460)
15 reserved (0)
14 second arbitration level exists
13 first arbitration level exists
12 serial interface is RS-422
11 not address limited
10 DMA channel used
9 second arbitration level can be shared
8 first arbitration level can be shared
7-0 reserved (0)
--------B-15D102-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY I/O ADDRSS
AX = D102h
BX = entry number at which to start searching
CX = requested I/O port address
DX = 0000h (reserved, must be set to 0)
ES:DI -> buffer to contain DDT entry (see #0459)
Return: AH = return code (see #0458)
BX = DDT entry number where I/O port was found, or total entries
plus 1 if port was not found.
CF set on error
CF clear on success
ES:DI buffer filled with DDT entry
Desc: the DDT is searched from the specified entry for the I/O port in CX,
and the first entry in which it is found is returned
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h,AX=D104h
--------B-15D103DX0000-----------------------
INT 15 - later PS/2s - RETURN ENTIRE DDT
AX = D103h
DX = 0000h (reserved, must be set to 0)
ES:DI -> buffer to contain DDT entry (see #0459)
Return: AH = return code (see #0458)
CF set on error
CF clear on success
ES:DI buffer filled with DDT entry
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D104h
--------B-15D104-----------------------------
INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY DEVICE ID
AX = D104h
BX = entry number at which to start searching
CX = requested device ID
DX = 0000h (reserved, must be set to 0)
ES:DI -> buffer to contain DDT entry (see #0459)
Return: AH = return code (see #0458)
BX = DDT entry number where device ID was found, or total entries
plus 1 if port was not found.
CF set on error
CF clear on success
ES:DI buffer filled with DDT entry
Desc: the DDT is searched from the specified entry for the device ID in CX,
and the first entry in which it is found is returned.
SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h
--------B-15D2-------------------------------
INT 15 - later PS/2s - RESERVED
AH = D2h
???
Return: ???
--------B-15D3-------------------------------
INT 15 - later PS/2s - RESERVED
AH = D3h
???
Return: ???
--------B-15D4-------------------------------
INT 15 - later PS/2s - GET PHYSICAL FIXED DISK DRIVE NUMBER (SELECTABLE BOOT)
AH = D4h
DL = logical fixed disk drive number
Return: AH = return code (see #0461)
CF set on error
CF clear on success
AL = physical fixed disk drive number
(Table 0461)
Values for return code:
00h success
01h specified logical drive number is invalid
80h function not supported (on PCjr and PC)
86h function not supported
--------B-15D5-------------------------------
INT 15 - later PS/2s - RESERVED
AH = D5h
???
Return: ???
--------B-15D600BL00-------------------------
INT 15 - later PS/2s - READ BOOT DEVICE ID
AX = D600h
BL = 00h
DX = device ID
Return: CF clear if successful
AH = 00h
CF set on error
AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h,AX=D602h
--------B-15D600BL01-------------------------
INT 15 - later PS/2s - WRITE BOOT DEVICE ID
AX = D600h
BL = 01h
DX = device ID
Return: CF clear on success
AH = 00h
CF set on error
AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h
--------B-15D601BL00-------------------------
INT 15 - later PS/2s - READ BOOT DEVICE KEY
AX = D601h
BL = 00h
DX = device ID
Return: CF clear on success
AH = 00h
CF set on error
AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h,AX=D602h
--------B-15D601BL01-------------------------
INT 15 - later PS/2s - WRITE BOOT DEVICE KEY
AX = D601h
BL = 01h
DX = device ID
Return: CF clear on success
AH = 00h
CF set on error
AH = status (86h for function not supported)
SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h
--------B-15D602-----------------------------
INT 15 - later PS/2s - QUERY BOOT REFERENCE PARTITION
AX = D602h
Return: CF clear on success
AH = 00h
AL = status of reference-partition boot request
00h boot not requested
01h boot requested
CF set on error
AH = status (86h for function not supported)
SeeAlso: AX=D601h/BL=00h
--------X-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,82h,83h,86h,87h)(see #0463)
AL = bit flags (see #0462)
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 (see #0464)
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
Bitfields for EISA AL bit flags:
Bit(s) Description (Table 0462)
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
SeeAlso: #0464
(Table 0463)
Values for EISA error code:
80h invalid slot number
81h invalid function number
82h EISA CMOS corrupt
83h empty slot
84h error clearing CMOS
85h EISA CMOS is full
86h invalid BIOS-FW function call
87h invalid system configuration
88h config utility version not supported
Bitfields for EISA combined function information byte:
Bit(s) Description (Table 0464)
7 reserved
6 slot has free-form data entries
5 slot has port initialization entries
4 slot has port-range entries
3 slot has DMA entries
2 slot has IRQ entries
1 slot has memory entries
0 slot has function type entries
SeeAlso: #0462
--------X-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-83h,86h,87h) (see #0463)
BX destroyed
Note: call with AL=81h if using 32-bit CS addressing mode instead of 16-bit
--------X-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,86h,88h) (see #0463)
Note: call with AL=82h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D803h
--------X-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-86h) (see #0463)
Note: call with AL=83h if using 32-bit CS addressing mode instead of 16-bit
SeeAlso: AX=D802h
--------X-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,83h,86h) (see #0463)
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
--------b-15D820-----------------------------
INT 15 - Compaq LTE Lite - GET ???
AX = D820h
DS:SI -> 17-byte buffer for ???
Return: DS:SI buffer filled (first byte is length of remaining data, unless
it is greater than 10h, in which case the second byte is 00h and no
other data is returned)
Note: this function is also supported by Compaq's EISA System ROM, Contura
486/486c/486cx and recent DESKPRO/i ROMs
SeeAlso: AX=D821h
--------b-15D821-----------------------------
INT 15 - Compaq LTE Lite - SET ???
AX = D821h
DS:SI -> counted string (should not be more than 16 bytes)
Return: AH = 00h
Note: this function is also supported by Compaq's EISA System ROM, Contura
486/486c/486cx and recent DESKPRO/i ROMs
SeeAlso: AX=D820h
--------b-15D822BL00-------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - GET ???
AX = D822h
BL = 00h
CX = size of buffer or 0000h to retrieve required buffer size
DS:SI -> buffer for ??? (if CX nonzero)
Return: CF clear if successful
AH = 00h
DH = 08h
CX = required buffer size to retrieve all data (if CX=0 on entry)
DS:SI buffer filled (if CX nonzero on entry)
CF set on error (BL nonzero)
AH = 86h
--------b-15D823-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
AX = D823h
BL = subfunction??? (00h or 80h)
BH = ???
DS:SI -> buffer for ??? (see #0465)
Return: CF clear if successful
AH = 00h
DH = 08h
DL = ???
CF set on error
AH = error code
86h BL neither 00h nor 80h
87h ???
Format of Compaq EISA buffer:
Offset Size Description (Table 0465)
00h BYTE ???
01h WORD ???
03h BYTE ???
04h WORD ???
06h WORD ???
???
----------15D824-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
AX = D824h
CX = ???
DS:SI -> ASCIZ string containing ???
Return: CF clear if successful
AH = 00h
CX = ???
CF set on error
AH = error code
87h ??? failed
88h ???
Note: these functions are only available if ??? from keyboard controller
command C0h
----------15D825-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
AX = D825h
CX = ???
SI = ???
DI = ???
???
Return: CF clear if successful
AH = 00h
CX = ???
CF set on error
AH = error code
87h ??? failed
88h ???
CX = ???
Note: these functions are only available if ??? from keyboard controller
command C0h
----------15D826-----------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - ???
AX = D826h
BX = ???
CX = size of buffer in bytes
DS:SI -> buffer for ???
???
Return: CF clear if successful
AH = 00h
CX = ???
CF set on error
AH = error code
87h ??? failed
88h ???
Note: these functions are only available if ??? from keyboard controller
command C0h
--------X-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
--------b-15D8-------------------------------
INT 15 - Compaq EISA System ROM 04/08/93 - 32-bit CS ADDRESSING MODE CALLS
AH = D8h
AL = A0h to A6h
other registers as appropriate for AL=20h to 26h
Return: as appropriate for AL=20h to 26h
Note: these functions are identical to AX=D820h to D826h, except that they
should be called when using 32-bit CS addressing mode
----------15DA-------------------------------
INT 15 U - AMI PCI BIOS v1.00.05.AX1 - ???
AH = DAh
AL = function (00h-08h,12h,14h,15h,19h,88h-8Eh,92h,99h)
other registers vary by function
Return: CF clear if successful
varies by function
CF set on error
AH = error code (86h unsupported [sub]function)
Note: functions not listed above always return CF set and AH=86h; in the
examined BIOS, functions 02h-04h,06h-07h,89h-8Bh, and 8Dh also
always return CF set and AH=86h
SeeAlso: AX=DA00h,AX=DA01h,AX=DA88h,AX=DA99h,AX=DB00h
--------b-15DA00-----------------------------
INT 15 U - AMI PCI BIOS - ???
AX = DA00h
CL = subfunction
00h ???
01h ???
02h get ???
???
Return: CF clear if successful
???
CF set on error
AH = error code (86h unsupported subfunction)
Note: in the v1.00.05.AX1 BIOS, subfunctions 00h and 01h always return
failure
SeeAlso: AX=DA01h
--------b-15DA01-----------------------------
INT 15 U - AMI PCI BIOS - CPU SPEED CONTROL
AX = DA01h
CL = subfunction (00h-02h)
00h set low CPU speed
01h set high CPU speed
02h get current CPU speed
Return: CF clear if successful
AH = current/new CPU speed (00h low, 01h high)
AL = ??? (00h)
CF set on error
AH = error code (86h unsupported subfunction)
Notes: in the v1.00.05.AX1 BIOS, subfunctions 00h and 01h are NOPs in both
protected and V86 modes due to a test of MSW bit 0
setting the CPU speed also generates the same audible signals generated
when manually switching speeds with Ctrl-Alt-Gray- and Ctrl-Alt-Gray+
BUG: the BIOS apparently intends to return CF set if ???, but fails to use
a different exit path in that case, resulting in CF clear
----------15DA05-----------------------------
INT 15 U - AMI PCI BIOS - GET ??? AND BIOS REVISION STRINGS
AX = DA05h
ES:SI -> 8-byte buffer for ??? and BIOS revision strings
Return: CF clear
ES:SI buffer filled
AL = 00h
CX = ??? (0000h)
Notes: for BIOS v1.00.05.AX1, the ??? string is "IDNO" and the BIOS revision
string is "AX1 "
SeeAlso: AX=DA15h,AX=DB04h
----------15DA08-----------------------------
INT 15 U - AMI PCI BIOS - ???
AX = DA08h
???
Return: CF clear if successful
???
CF set on error
AH = error code (86h unsupported subfunction)
Note: in the examined v1.00.05.AX1 BIOS, this call always returns failure
----------15DA12-----------------------------
INT 15 U - AMI PCI BIOS - v1.00.05.AX1 - ???
AX = DA12h
CL = subfunction
00h ???
01h ???
02h get ???
03h ???
04h ???
???
Return: CF clear if successful
???
CF set on error
AH = error code (86h unsupported subfunction)
Desc: ??? performs various manipulations on system chipset registers
Notes: subfunctions 00h and 01h are NOPs in protected and V86 modes due to
a test of MSW bit 0
subfunctions 00h-02h always return success
----------15DA14-----------------------------
INT 15 U - AMI PCI BIOS - GET/SET ???
AX = DA14h
CL = subfunction
00h read
01h write
DH = new value for ??? (00h-02h)
DL = index of ??? (00h-03h, but not range-checked)
???
Return: CF clear if successful
DH = current value of ??? if reading
CF set on error
AH = error code (86h unsupported subfunction)
Note: the values for indexes 00h and 01h are stored in CMOS RAM location 19h,
and the values for 02h and 03h are stored in location 36h
BUG: the v1.00.05.AX1 BIOS range-checks DH on subfunction 00h instead of
subfunction 01h, even though DH is never used by subfunction 00h
----------15DA15-----------------------------
INT 15 U - AMI PCI BIOS - GET ??? AND BIOS REVISION STRINGS
AX = DA15h
ES:DI -> 8-byte buffer for ??? and BIOS revision strings
Return: CF clear
ES:DI buffer filled
AL = 00h
Note: for BIOS v1.00.05.AX1, the ??? string is "IDNO" and the BIOS revision
string is "AX1 "
SeeAlso: AX=DA05h,AX=DB04h
----------15DA19-----------------------------
INT 15 U - AMI PCI BIOS - GET/SET ???
AX = DA19h
CL = subfunction
00h get first ???
01h get second ???
02h set first ???
BX = ???
DX = ???
03h set second ???
BX = ???
DX = ???
Return: CF clear if successful
AX = 0000h
BX,DX = ??? (subfunctions 00h and 01h only)
CF set on error
AH = error code (86h unsupported subfunction)
Note: the first ??? is stored in CMOS RAM locations 1Bh-1Eh, the second in
locations 1Fh-22h in the v1.00.05.AX1 BIOS
--------b-15DA20-----------------------------
INT 15 U - AMI PCI BIOS v1.00.12.AX1T - CMOS RAM BITFIELD MANIPULATION
AX = DA20h
BL = subfunction
00h set CMOS data field
BH = CMOS data field number (00h-4Dh)
CH = new value for bitfield (in lowest bits of register)
01h read CMOS data field
BH = CMOS data field number (00h-4Dh)
Return: CH = value of bitfield
CL = mask of valid bits
Note: both CL/CH shifted to move valid bits into lowest pos
02h set CMOS byte
CL = CMOS RAM address (00h-7Fh)
CH = new value for CMOS byte
03h get CMOS byte
CL = CMOS RAM address (00h-7Fh)
Return: CH = value of CMOS byte
04h update CMOS checksums
Note: sets 2Eh/2Fh to checksum of 10h-2Dh and 7Eh/7Fh to
checksum of 48h-7Dh
05h verify CMOS checksums
Return: CF clear if checksums OK
AH = 00h
CF set if checksum mismatch
AH = 01h
Return: CF clear if successful
AH = 00h
CF set on error
AH = error code (86h unsupported function/data field)
Notes: this function was not supported by the v1.00.05.AX1 BIOS, but had been
added by 1.00.12.AX1T
after using subfunctions 00h or 02h, the application must call
subfunction 04h to update the checksums to prevent an error the next
time the system is booted
(Table 0466)
Values for AMI BIOS v1.00.12.AX1T CMOS bitfield identifier:
ID address bit(s) contents
00h 1Ah 7-6
01h 1Dh 7-6
02h 6Eh 1
03h 77h 0
04h 77h 1
05h 77h 2
06h 77h 3
07h 77h 5
08h 77h 6
09h 77h 7
0Ah 78h 7 power management enabled???
0Bh 78h 6
0Ch 10h 7-4 first floppy drive type
0Dh 10h 3-0 second floppy drive type
0Eh 11h 7
0Fh 20h 4-0 selected language for error messages/setup utility
10h 11h 2-1
11h 11h 4
12h 11h 0
13h 11h 3
14h 13h 7
15h 13h 6-5
16h 13h 4-2
17h 19h 7
18h 19h 6
19h 19h 5
1Ah 19h 4
1Bh 1Eh 2-0
1Ch 1Bh 7-6
1Dh 1Ch 7
1Eh 1Ch 3
1Fh 1Ah 5-4
20h 1Dh 5-4
21h 1Bh 5-4
22h 1Ch 6
23h 1Ch 2
24h 1Ah 3-2
25h 1Dh 3-2
26h 1Bh 3-2
27h 1Ch 5
28h 1Ch 1
29h 1Ah 1-0
2Ah 1Dh 1-0
2Bh 1Bh 1-0
2Ch 1Ch 4
2Dh 1Ch 0
2Eh 50h 7-0
2Fh 51h 7-0
30h 52h 7-0
31h 53h 7-0
32h 60h 0
33h 60h 0
34h 60h 0
35h 60h 0
36h 60h 0
37h 60h 0
38h 60h 1
39h 61h 7
3Ah 60h 2
3Bh 61h 6-4
3Ch 61h 2-0
3Dh 60h 7-6
3Eh 60h 5-4
3Fh 78h 5-4
40h 6Eh 5
41h 1Eh 3
42h 6Eh 0
43h 6Eh 2
44h 6Fh 1-0
45h 6Fh 1-0
46h 28h 4-2
47h 28h 7-5
48h 6Eh 4
49h 6Eh 3
4Ah 76h 7-0
4Bh 77h 4
4Ch 11h 6
4Dh 1Fh 7-0
----------15DA88-----------------------------
INT 15 U - AMI PCI BIOS - GET EXTENDED MEMORY SIZE
AX = DA88h
Return: CF clear (successful)
AX = 0000h
CL:BX = extended memory size in KBytes
SeeAlso: AH=88h
----------15DA8C-----------------------------
INT 15 U - AMI PCI BIOS - GET BIOS AND CHIPSET IDENTIFICATION
AX = DA8Ch
CL = subfunction
00h get BIOS version string
ES:DI -> 12-byte buffer for version string
01h get chipset identification
BL = what to retrieve
(00h host/PCI bridge,01h motherboard chipset)
ES:DI -> 12-byte buffer for chipset identification (see #0467)
Return: CF clear if successful
ES:DI buffer filled
CF set on error
AH = error code (86h unsupported subfunction)
Notes: the v1.00.05.AX1 BIOS returns "1.00.05.AX1 " as its version string
subfunction 01h returns the five bytes read from the PCI configuration
registers 00h-05h (see #0798), padded to 12 bytes with NULs
SeeAlso: AX=DB04h,PORT C000h"Neptune"
Format of AMI PCI BIOS chipset identification:
Offset Size Description (Table 0467)
00h WORD vendor ID (see #0656 at AX=B102h)
8086h = Intel
02h WORD device ID
0484h (BL=01h)
04A3h (BL=00h)
04h BYTE low byte of PCI Command Register
05h 7 BYTEs unused (00h)
----------15DA8E-----------------------------
INT 15 U - AMI PCI BIOS - ???
AX = DA8Eh
???
Return: CF clear if successful
???
CF set on error
AH = error code (86h unsupported subfunction)
Note: in the v1.00.05.AX1 BIOS, this call always returns failure
----------15DA92-----------------------------
INT 15 U - AMI PCI BIOS - GET CPU TYPE AND SPEED
AX = DA92h
Return: CF clear (successful)
AL = CPU stepping (see also #0453 at INT 15/AH=C9h)
AH = CPU model
BL = CPU family (05h = Pentium, etc.)
CX = external clock speed in MHz (BCD)
(0040h,0050h,0060h,0066h are possible return values on my
Pentium with the Intel "Neptune" chipset)
EAX high word destroyed
Note: 90 MHz and faster Pentium CPUs can be configured to run at varying
multiples of the external clock speed, i.e. a typical 90 MHz Pentium
system will run the motherboard at 60 MHz (my 90 MHz Pentium returns
0060h in CX)
SeeAlso: AH=C9h
----------15DA99-----------------------------
INT 15 U - AMI PCI BIOS - GET/SET ??? FLAG
AX = DA99h
CL = subfunction
00h check if ???
01h set ??? flag
02h clear ??? flag
Return: CF clear if successful
AH = ??? (00h,01h)
AL = 00h
CF set on error
AH = error code (86h unsupported subfunction)
Note: the flag is stored in bit 0 of CMOS RAM location 2Ch for BIOS
v1.00.05.AX1
--------b-15DB00-----------------------------
INT 15 U - AMI BIOS - Flash ROM - READ FLASH BIOS
AX = DB00h
DS:SI -> parameter block (see #0468)
ES:DI -> buffer for copied information
Return: CF clear if successful
CF set on error
AH = status (86h if not implemented)
DS,ES destroyed, possibly other registers
Note: used by FMUP.EXE, Intel's Flash Memory Update utility
SeeAlso: AH=DAh,AX=DB01h,AX=DB04h
Format of AMI BIOS Flash ROM parameter block:
Offset Size Description (Table 0468)
00h 32 BYTEs ASCIZ description of the file's contents
20h BYTE Logical area type (see #0469)
21h DWORD logical area size (overall size of area)
25h BYTE flag: load from file (FF=yes, 00=no)
26h BYTE flag: reboot after update (FF=yes, 00=no)
27h BYTE flag: update entire image (FF=yes, 00=no)
28h 24 BYTEs ASCIZ logical area name (cooresponds to offset 20)
"System BIOS"
"Logo Data Area", etc.
40h 15 BYTEs ASCIZ time stamp string: MM/DD/YY-HH:MM
4Fh BYTE checksum for this header (sum of all bytes except this one)
if checksum would be 00h,01h, or FFh, it is set to 2Ah
50h DWORD this file's starting address (offset in image)
54h DWORD size of image chunk in this file
58h BYTE logical area type - same as offset 20h
59h BYTE flag: last file in chain (FF=yes, 00=no)
5Ah 6 BYTEs ASCIZ signature "FLASH"
60h 16 BYTEs ASCIZ filename of next file in chain
70h 16 BYTEs ASCIZ BIOS reserved string (usually version #)
Notes: this block is identical in format to the 128-byte header on an AMI
BIOS Update file
for AX=DB00h, the following fields must be specified: 50h,54h,58h;
the fields at offset 20h and 5Ah should also be set if possible
the fields at offsets 40h and 70h will be set on return, if available
SeeAlso: #0470
--------b-15DB01-----------------------------
INT 15 U - AMI BIOS - Flash ROM - GET BIOS SUBSYSTEM INFORMATION
AX = DB01h
CL = BIOS subsystem information identifier (see #0469)
Return: CF clear if successful
AX = 0000h
ES:DI -> 56-byte record describing subsystem (see #0470)
CF set on error
AH = status
01h nonexistent subsystem
86h function not supported
AL = 00h
Note: used by FMUP.EXE, Intel's Flash Memory Update utility
SeeAlso: AX=DB00h,AX=DB02h
(Table 0469)
Values for AMI BIOS subsystem identifier:
00h recovery code
01h system BIOS
02h PCI configuration data
03h OEM logo data area (see #0471)
04h system BIOS/Language Set (one system)
configuration utility (another system)
SeeAlso: #0470
Format of AMI BIOS subsystem information:
Offset Size Description (Table 0470)
00h BYTE subsystem identifier/logical area type (see #0469)
01h DWORD subsystem (FlashROM page) size in bytes
05h BYTE flag: loadable from file (FFh=yes)
06h BYTE flag: reboot after update (FFh=yes)
07h BYTE flag: update entire image (FFh=yes)
08h 24 BYTEs subsystem/logical area name
20h BYTE subsystem identifier???
21h BYTE flag: reprogrammable if FFh
22h BYTE ??? (01h,02h seen)
23h 5 BYTEs ??? (apparently always 00h)
28h 16 BYTEs BIOS reserved string (usually version number)
SeeAlso: #0468
Format of AMI OEM Logo data area:
Offset Size Description (Table 0471)
00h 8 BYTEs signature
"TEXTLOGO" if text-mode OEM logo
8 DUP (FFh) if unused
08h WORD offset of logo font definition table
0Ah WORD offset of logo data
0Ch WORD size of logo font table in words
0Eh WORD offset of upper left corner of logo in video page
10h WORD width of logo
12h WORD height of logo
14h BYTE reserved???
var var logo font definition (16 bytes per character)
var var logo data as character/attribute pairs
Note: the attribute for the logo characters specifies which font will be used
for that character. If bit 3 is cleared, the normal system font is
used; if bit 3 is set, the logo font is used, with screen colors
adjusted to match the corresponding non-bright attribute for the
system font
SeeAlso: #0469,#0470
--------b-15DB02-----------------------------
INT 15 U - AMI BIOS - Flash ROM - GET SIZE OF FLASH ROM PROGRAMMING CODE
AX = DB02h
Return: CF clear
AX = 0000h
BX = size of ROM programming code in bytes
Note: used by FMUP.EXE, Intel's Flash Memory Update utility
SeeAlso: AX=DB00h,AX=DB03h
--------b-15DB03-----------------------------
INT 15 U - AMI BIOS - Flash ROM - GET FLASH ROM PROGRAMMING CODE
AX = DB03h
DS:SI -> ???
ES:DI -> buffer for Flash ROM programming code
BX = ???
DX = ???
Return: CF clear if successful
AH = ???
BX = ???
DX = ???
CF set on error
AH = error code
Notes: the entry point for the copied code (which is fully relocatable) is
the very first byte (see #0472)
used by FMUP.EXE, Intel's Flash Memory Update utility
SeeAlso: AX=DB00h,AX=DB02h
(Table 0472)
Call AMI BIOS ??? code with:
AL = function
00h erase Flash ROM block
CX = ???
bit 8: address line A16 inverted
???
01h program new data into Flash ROM
???
02h perform cold reboot
DS:SI -> ??? (see #0473)
ES:DI -> ???
Return: AH = status
00h successful
01h invalid function
02h ???
03h ???
04h ???
Note: DS:SI and ES:DI are ignored for function 02h
Format of AMI BIOS Flash ROM programming parameters:
Offset Size Description (Table 0473)
00h 32 BYTEs ???
20h BYTE BIOS section number
21h DWORD length of BIOS code/data in bytes
25h 43 BYTEs ???
50h DWORD ???
54h 44 BYTEs ???
SeeAlso: #0472
--------b-15DB04-----------------------------
INT 15 U - AMI BIOS - Flash ROM - GET BIOS REVISION
AX = DB04h
Return: CF clear if supported
BL:BH:DL:DH = BIOS revision string
(e.g. 'AX1 ' for v1.00.05.AX1, 'AV0M' for v1.00.03.AV0M)
CL = flag: DH valid?
00h ignore DH; ignore DL as well if 20h (space)
01h ignore DH if 20h (space)
CH = BIOS status
00h normal mode
01h ROM recovery mode
AL = ??? (02h)
Note: used by FMUP.EXE, Intel's Flash Memory Update utility
SeeAlso: AX=DA05h,AX=DA15h,AX=DA8Ch,AX=DB00h,AX=DB03h
--------Q-15DE00-----------------------------
INT 15 - DESQview - GET PROGRAM NAME
AX = DE00h
Return: AX = offset into DESQVIEW.DVO of program most recently selected from
the "Switch Windows" menu (see #0474)
Note: always returns AX=0000h under DESQview/X
SeeAlso: AX=DE07h
Format of program entry in DESQVIEW.DVO:
Offset Size Description (Table 0474)
00h BYTE length of name (FFh if end of file)
01h N BYTEs name
2 BYTEs keys to invoke program (second = 00h if only one key used)
BYTE program type
00h normal program
04h divider
80h Delete a Program
81h Change a Program
WORD ??? apparently always 0000h
--------Q-15DE01-----------------------------
INT 15 - DESQview - UPDATE "OPEN WINDOW" MENU
AX = DE01h
Return: nothing
Notes: reads DESQVIEW.DVO, disables Open menu if file not in current directory
NOP for DESQview/X
--------Q-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
--------Q-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
--------Q-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
--------Q-15DE05-----------------------------
INT 15 - DESQview - GET AVAILABLE CONVENTIONAL MEMORY
AX = DE05h
Return: BX = KB of memory available
CX = largest block available
DX = total conventional memory in KB
SeeAlso: AX=DE04h,AX=DE06h
--------Q-15DE06-----------------------------
INT 15 - DESQview - GET AVAILABLE EXPANDED MEMORY
AX = DE06h
Return: BX = KB of expanded memory available
CX = largest block available
DX = total expanded memory in KB
SeeAlso: AX=DE04h,AX=DE05h
--------Q-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
--------Q-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
--------Q-15DE09-----------------------------
INT 15 - DESQview - UNIMPLEMENTED
AX = DE09h
Return: nothing (NOP in DV 1.x and 2.x)
--------Q-15DE0A-----------------------------
INT 15 - DESQview v2.00+ - "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
--------Q-15DE0B-----------------------------
INT 15 - DESQview v2.00+ - "APILEVEL" - DEFINE MINIMUM API LEVEL REQUIRED
AX = DE0Bh
BL = API level minor version number
BH = API level major version number
Return: AX = maximum API level (AH = major, AL = 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
--------Q-15DE0C-----------------------------
INT 15 - DESQview v2.00+ - "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=102Eh,AX=DE0Dh,AX=DE15h,AX=DE19h
--------Q-15DE0D-----------------------------
INT 15 - DESQview v2.00+ - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
AX = DE0Dh
ES:DI -> previously allocated block
Return: nothing
SeeAlso: AX=1002h,AX=DE0Ch
--------Q-15DE0E-----------------------------
INT 15 - DESQview v2.00+ - "FINDMAIL" - FIND MAILBOX BY NAME
AX = DE0Eh
ES:DI -> name to find (see #0475)
CX = length of name
Return: BX = 0000h not found
0001h found
DS:SI = object handle
SeeAlso: AH=12h/BH=11h,AH=12h/BH=12h"GETNAME"
(Table 0475)
Values for special DESQview mailbox names:
"COM1" ... "COM4" RBcomm using COM1 ... COM4
"DESQview/X Help Engine"
"DESQview/X Network Server" Network Manager
"DESQview X Server0" X-Windows server
"DESQview X Server7" X-Windows printing service
"INBOX" DESQview/X LPD requests
"OUTBOX" DESQview/X LPD responses
"WAITBOX" semaphore to synchronize DESQview/X LPD communications
"_DVNM_" DV/X v1.10 network manager
--------Q-15DE0F-----------------------------
INT 15 - DESQview v2.00+ - 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
--------Q-15DE10-----------------------------
INT 15 - DESQview v2.00+ - "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
--------Q-15DE11BL00-------------------------
INT 15 - DESQview v2.00+ - "JUSTIFY" - EN/DISABLE AUTOM. WINDOW JUSTIFICATION
AX = DE11h
BL = 00h viewport will not move automatically
nonzero viewport will move to keep cursor visible (default)
Return: nothing
--------Q-15DE12BX0000-----------------------
INT 15 - DESQview v2.01+ - "CSTYLE" - SET "C"-COMPATIBLE CONTROL CHAR INTERPRET
AX = DE12h
BX = 0000h select normal style (linefeed only moves 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
--------Q-15DE13-----------------------------
INT 15 - DESQview v2.20+ - "GETCRIT" - GET CRITICAL NESTING COUNT
AX = DE13h
Return: BX = number of calls to BEGINC or ENTERC
(see INT 15/AX=101Bh,INT 15/AX=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
--------Q-15DE14-----------------------------
INT 15 - DESQview v2.20+ - 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
--------Q-15DE15-----------------------------
INT 15 - DESQview v2.20+ - SET ERROR HANDLING
AX = DE15h
BL = error handling mode
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 also return null pointer for GETMEM
calls which fail due to lack of system memory
Return: nothing
SeeAlso: AX=DE0Ch,AX=DE16h
--------Q-15DE16-----------------------------
INT 15 - DESQview v2.20+ - GET ERROR HANDLING
AX = DE16h
Return: BL = current mode
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
--------Q-15DE17-----------------------------
INT 15 - DESQview v2.20-2.25 - 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
--------Q-15DE17-----------------------------
INT 15 - DESQview v2.26+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
AX = DE17h
BX = function
0000h get current mapping context without setting
nonzero set new mapping context to BX
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=1016h,AX=1117h,AX=DE21h,INT 2F/AX=1685h
--------Q-15DE18-----------------------------
INT 15 - DESQview v2.20+ - 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)
--------Q-15DE19-----------------------------
INT 15 - DESQview v2.23+ - "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
--------Q-15DE1A-----------------------------
INT 15 - DESQview v2.23+ - "PUTCOMMON" - DEALLOCATE "COMMON" MEMORY
AX = DE1Ah
ES:DI -> previously allocated block
Return: AX = 0000h (successful)
Note: this function may be called from within a hardware interrupt handler
SeeAlso: AX=DE0Dh,AX=DE19h
--------Q-15DE1B-----------------------------
INT 15 - DESQview v2.23+ internal - DECREMENT CRITICAL NESTING COUNT
AX = DE1Bh
Return: nothing
SeeAlso: AX=101Ch,AX=DE13h,AX=DE1Ch
--------Q-15DE1C-----------------------------
INT 15 - DESQview v2.23+ - "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
--------Q-15DE1D-----------------------------
INT 15 - DESQview v2.23+ - "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
--------Q-15DE1E-----------------------------
INT 15 - DESQview v2.23+ - "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
--------Q-15DE1F-----------------------------
INT 15 - DESQview v2.23+ - "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,INT 21/AH=34h
--------Q-15DE20-----------------------------
INT 15 - DESQview v2.26+ - "DISPATCHINT" - INTERRUPT ANOTHER TASK
AX = DE20h
BX = segment of handle of task to interupt
DX:CX -> FAR interrupt routine
BP,SI,DI,DS,ES as required by 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,AX=DE2Ah
--------Q-15DE21-----------------------------
INT 15 - DESQview v2.26+ - "ASSERTVIR" - CONTROL 386 SCREEN VIRTUALIZATION
AX = DE21h
BX = new state
0000h turn off
nonzero turn on
Return: BX = old state of virtualization
Notes: this API call may be made from within a hardware interrupt handler
under DV 2.40 and 2.42, this call appears to have no effect and always
returns a nonzero value in BX which appears to be the offset within
the DV common memory segment of the caller's task object; it may
only have an effect within a hardware interrupt handler
SeeAlso: AX=1117h,AX=DE17h
--------Q-15DE22-----------------------------
INT 15 - DESQview v2.26+ - "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 = memory flags (see #0476)
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
Bitfields for DESQview process memory flags:
Bit(s) Description (Table 0476)
0 system memory resides in shared memory
1 process's memory is swapped out
2 process's system memory is swapped out
--------Q-15DE23-----------------------------
INT 15 U - DESQview v2.31+ - ???
AX = DE23h
BX = ??? IRQ number on first PIC?
CX = ??? IRQ number on second PIC?
Return: ???
Note: called by QEMM 6.00+
--------Q-15DE24-----------------------------
INT 15 - DESQview v2.40+ - "XNEWPROC" - START NEW APPLICATION
AX = DE24h
BX = length of .DVP data
CX = length of ??? string
DS:SI -> ??? string
ES:DI -> .DVP data (see #0353 at AX=102Ch)
Return: BX = segment of task handle??? or 0000h on error
Note: this call is similar to AX=102Ch except that it can interpret the
extended DVP data
SeeAlso: AX=102Ch
--------Q-15DE25-----------------------------
INT 15 - DESQview v2.40+ - "GETDVPATH" - GET DESQview DIRECTORY
AX = DE25h
ES:DI -> 67-byte buffer for ASCIZ directory name
Return: ES:DI buffer filled with directory from which DESQview was started
BUG: DV 2.42 does not place a terminating NUL at the end of the directory
name, so if the buffer is not cleared to zeros before the call,
there is no way to tell where the directory name ends. This bug
has been fixed in DV 2.52 (DV/X 1.02)
SeeAlso: AX=DE2Eh,INT 21/AH=47h
--------Q-15DE26-----------------------------
INT 15 - DESQview v2.40+ - "GETFOREGROUND" - GET KEYBOARD FOCUS
AX = DE26h
Return: BX = segment of handle for task with keyboard focus
Note: under DESQview/X, the X server always has the keyboard focus unless a
"direct" window is active
SeeAlso: AX=DE2Fh,INT 2F/AX=DE0Ah
--------Q-15DE27-----------------------------
INT 15 - DESQview v2.50+ - "ADDINSTANCEDATA" - ADD PER-TASK SAVE/RESTORE AREA
AX = DE27h
BX = type
0000h process
0001h task
ES:DI -> list of Instance Item Structures (see #0477)
Return: CF clear if successful
AX = ???
BX = ???
CF set on error
AX = error code???
0004h invalid BX value
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: INT 2F/AX=DE08h,INT 2F/AX=DE09h
Format of DESQview Instance Item Structure [one element of list]:
Offset Size Description (Table 0477)
00h WORD length of data area DESQview should save and restore on context
switches (0000h = end of list)
02h DWORD pointer to area to be saved/restored
--------Q-15DE28-----------------------------
INT 15 U - DESQview v2.50+ - ???
AX = DE28h
BX = segment of ??? or 0000h for default
???
Return: ???
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: AX=DE2Ah
--------Q-15DE29BX0000-----------------------
INT 15 U - DESQview/X - ???
AX = DE29h
BX = 0000h
???
Return: CF clear if successful
???
CF set on error
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
under DESQview 2.60, this function and all other subfunctions of
AX=DE29h always return CF set, as they are unique to DESQview/X
--------Q-15DE29BX0001-----------------------
INT 15 U - DESQview/X - ???
AX = DE29h
BX = 0001h
DX = segment of window handle
Return: CF clear if successful
AX = ???
DX = ???
CF set on error
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0002-----------------------
INT 15 U - DESQview/X - ???
AX = DE29h
BX = 0002h
DX = segment of window handle
Return: CF clear if successful
AX = ???
DX = ???
CF set on error
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0003-----------------------
INT 15 U - DESQview/X - ???
AX = DE29h
BX = 0003h
DX = segment of window handle
Return: CF clear if successful
???
CF set on error
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
--------Q-15DE29BX0004-----------------------
INT 15 U - DESQview/X - GET DISPLAY NAME
AX = DE29h
BX = 0004h
CX = size of buffer in bytes
DX = segment of window handle
ES:DI -> buffer for display name
Return: CF clear if successful
buffer filled with ASCIZ display name (truncated if necessary) or
null string if no display
CF set on error
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
the name ":0" refers to the local display
--------Q-15DE29BX0005-----------------------
INT 15 U - DESQview/X - ???
AX = DE29h
BX = 0005h
???
Return: CF clear if successful
???
CF set on error
Note: under DESQview 2.60, this function and all other subfunctions of
AX=DE29h always return CF set, as they are unique to DESQview/X
--------Q-15DE2A-----------------------------
INT 15 - DESQview v2.50+ - "DISPATCHINTAFTERDOS" - INTERRUPT ANOTHER TASK
AX = DE2Ah
BX = segment of handle for task to interrupt or 0000h for caller
DX:CX -> interrupt routine
BP,SI,DI,DS,ES as required by interrupt routine
Return: nothing
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
this call is the same as AX=DE20h except that it will delay
interrupting the specified task until after it has exited DOS
SeeAlso: AX=1021h,AX=DE20h
--------Q-15DE2B-----------------------------
INT 15 - DESQview v2.50+ - "OBJNEXT" - TRAVERSE OBJECT LIST
AX = DE2Bh
ES:DI -> starting object
0000h:0000h for first object in list???
Return: AX = status
0000h successful
ES:DI -> next object of same type (window/non-window)
0001h failed (ES:DI was not a valid handle)
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
there are two separate lists, one for window/task objects and one
for all other objects
SeeAlso: AX=1016h,AX=DE2Ah,AX=DE2Ch
--------Q-15DE2C-----------------------------
INT 15 - DESQview v2.50+ - "WININFO" - GET WINDOW INFORMATION
AX = DE2Ch
DX = window information format version (0100h for DESQview 2.5x)
BX = segment of window handle or 0000h for default
ES:DI -> buffer for window information (see #0478)
Return: AX = status
0000h successful
Note: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
SeeAlso: AX=1000h,AX=1016h,AX=DE01h,AX=DE2Bh
Format of DESQview window information:
Offset Size Description (Table 0478)
00h BYTE task flag: 00h window, 01h task
01h BYTE process number if owner task
00h if non-owner task
02h WORD segment of owner's handle, 0000h if orphaned
04h WORD mapping context (see #0342 at AX=1016h)
06h BYTE task status (see #0479)
07h BYTE unused
08h WORD status bits (see #0480)
0Ah BYTE 01h if foreground-only window
(Table 0479)
Values for DESQview task status:
00h "Waiting" waiting for input
01h "Idle" keyboard poll limit reached
03h same as 01h
04h "Pausing" INT 15/AX=1000h pause called
04h DV/X direct: user did something to allow task switch
05h "ModeChg" video mode about to be changed
06h "ModeNtf" notify that video mode changed
07h "MoniCh" requested change to other monitor
08h "StartPgm" control relinquished to start new process
09h "MgrCan" made window manager CANCEL command
0Ah "Slicing" time slice expired
0Bh "Exit DOS" notify on DOS calls
0Ch "Enter DOS" process is re-entering DOS
0Dh "Terminate" INT 21/AH=4Ch or task freed
0Eh "BrkNxt" Control-Break pressed
0Fh "MgrCol" keyboard focus taken away
10h "PgmInt" interrupted by API call from another task
11h "BldOpen" call to INT 15/AX=DE01h
Bitfields for DESQview task status bits:
Bit(s) Description (Table 0480)
6 task is freeing another task
5 process is being created
4 user suspended process
3 process suspended itself
2 process is resized direct window (suspended)
1 process swapped out
0 DESQview process
--------Q-15DE2D-----------------------------
INT 15 U - DESQview v2.50+ - GET/SET SOCKET HANDLER
AX = DE2Dh
CX = direction
FFFFh set socket handler
DX:BX -> FAR function for socket interface
must be of the format described under INT 63"DESQview"
at #3186
other get socket handler
Return: DX:BX -> socket handler (see #3186)
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
the "set" subfunction is normally called only by SOCKET.DVR
SeeAlso: AX=DE2Eh,INT 63"DESQview",#3186
--------Q-15DE2E-----------------------------
INT 15 U - DESQview v2.50+ - SOCKET API
AX = DE2Eh
DX:BX -> socket record (see #0482)
0000h:0000h to create a new socket record
Return: CX = size of socket record in bytes
DX:BX -> socket record which was used
Notes: DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
socket records are allocated from common memory
for Unix compatibility, each socket and connection on a socket is
allocated a DOS file handle (referencing an SFT for NUL) which is
used on various calls to specify which of possibly multiple
connections is to be operated upon
SeeAlso: AX=DE2Dh,INT 61/AX=0001h/SF=0001h"VINES",INT 63"DESQview"
(Table 0481)
Values for DESQview/X socket API function number:
0000h initialize socket???
0001h "gethostname"
0002h "ioctl" check for input
0003h "sleep" delay for specified period
0004h "htons" convert word to network (big-endian) byte order
0005h "select"
0006h "bsd_close"/"so_close" close socket
0007h NOP
0008h "connect" initiate connection on socket
0009h "recv"/"recvfrom" read from socket
000Ah "socket"
000Bh ???
000Ch "gethostbyname"
000Dh "send"/"sendto" write to socket
000Eh ??? (does something to all connections for process)
000Fh "getpid" get process identifier
0010h "gettimeofday"
0011h "bind" assign name to socket
0012h "listen" listen for connections on socket
0013h "accept" accept connection on socket
0014h connect to X server
0015h "gethostbyaddr" get host information for an address
0016h "getprotobyname"
0017h "getprotobynumber"
0018h "getservbyname"
0019h "getservbyport"
001Ah "getsockname" determine name bound to socket
001Bh "getpeername" get name of connected peer
001Ch "getsockopt"/"setsockopt"
001Dh "so_exit" close all sockets for calling process
001Eh "issock" determine whether file handle references socket
001Fh "so_attach" reattach previously detached socket
0020h "so_detach" temporarily detach socket
0021h "dvpath" get DESQview directory (see also AX=DE24h)
0022h "NewProc" start new application (see also AX=102Ch)
0023h "so_linkup"
0024h "CanonicalPath" canonicalize filename (see also INT 21/AH=60h)
0025h indirect INT 15h call
0026h Network Manager interface
0027h "so_unlink" close connection from "so_linkup"
0028h "raisepriority"
0029h "lowerpriority"
002Ah "so_private" ???
FFFFh "NetExit" (appears to be a NOP)
Format of DESQview/X socket record:
Offset Size Description (Table 0482)
00h WORD signature F0ADh
02h WORD function number (see #0481)
04h WORD returned error code (see #0502)
06h WORD maximum message size??? (usually 0400h)
08h WORD PSP segment to use or 0000h if socket not valid
0Ah WORD scratch space (JFT size)
0Ch DWORD scratch space (JFT address)
10h DWORD mailbox handle (initialized by function 0000h)
14h DWORD timer object handle (initialized by function 0000h)
---function 0000h---
18h WORD (ret) ???
---function 0001h---
18h WORD (ret) status???
1Ah 128 BYTEs (ret) ASCIZ hostname (empty string if not on network)
9Ah WORD maximum length of hostname to return
---function 0002h---
18h WORD (ret) status
1Ah WORD socket's file handle
1Ch WORD IOCTL function
05h "FIONREAD" determine available input
06h "FIONBIO" set blocking state of socket
1Eh WORD (return, subfn 05h) number of bytes available for reading
(call, subfn 06h) 0000h blocking, nonzero nonblocking
---function 0003h---
18h 2 BYTEs unused
1Ah WORD delay time in seconds
---function 0004h---
18h WORD (ret) result in network (big-endian) byte order
1Ah WORD value to convert to network byte order
---function 0005h---
18h WORD (ret) number of handles meeting the specified conditions???
1Ah WORD number of file handles in each bitset
1Ch DWORD bitset of socket handles to check for readability
20h DWORD bitset of socket handles to check for writability
24h DWORD bitset of socket handles to check for errors
28h WORD timeout in ??? or 0000h to block until some socket ready
2Ah DWORD ???
2Eh DWORD ???
---function 0006h---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
---function 0008h---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
1Ch WORD 0001h if socket name specified, 0000h if not
1Eh WORD length of socket name
20h N BYTEs name of socket to which to connect
---function 0009h---
18h WORD (ret) number of bytes actually read, 0000h if connection
closed, or FFFFh on error
1Ah WORD socket's file handle
1Ch WORD number of bytes to read
1Eh WORD flags
20h WORD 0000h if no source address desired
0001h if source address is to be stored (datagram sockets)
22h WORD length of source address
24h 110 BYTEs source address
92h 1K BYTEs buffer for data to be read
---function 000Ah---
18h WORD (ret) socket's file handle or FFFFh on error
1Ah WORD address family (0001h,0002h)
1Ch WORD socket type
1Eh WORD protocol
---function 000Bh---
18h WORD (ret) 0001h if ??? or FFFFh on error
1Ah WORD socket's file handle
1Eh WORD (call) ???
---function 000Ch---
18h 128 BYTEs ASCIZ hostname (special case if empty string or "unix")
98h ??? (ret) packed 'hostent' structure
A2h ??? (ret) ???
---function 000Dh---
18h WORD (ret) number of bytes actually written or FFFFh on error
1Ah WORD socket's file handle
1Ch WORD number of bytes to write
1Eh WORD number of bytes to follow in subsequent writes???
20h WORD flags
22h WORD 0000h if no destination specified, 0001h if destination present
24h WORD 0001h if broadcast message???, 0000h if not
(ignored if no destination specified)
26h WORD length of destination address
28h 110 BYTEs destination address
96h 1K BYTEs buffer containing data to be written
---function 000Eh---
no additional fields
---function 000Fh---
18h DWORD (ret) DESQview task handle of calling process
---function 0010h---
18h DWORD (ret) current time
1Ch DWORD (ret) ???
---function 0011h---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
1Ch WORD length of name
1Eh N BYTEs buffer for socket name
---function 0012h---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
1Ch WORD maximum backlog of pending connections allowed on socket
---function 0013h---
18h WORD (ret) file handle for new connection or FFFFh on error
1Ah WORD listen()ing socket's file handle
1Ch WORD (call) length of buffer for connecting entity's address
(ret) actual length of address
1Eh N BYTEs buffer for connecting entity's address (110 bytes???)
---function 0014h---
18h WORD (ret) socket's file handle or FFFFh on error
1Ah 4 BYTEs (ret) ???
1Eh WORD (ret) ???
20h WORD (ret) ???
22h 256 BYTEs ASCIZ X display name
122h ???
---function 0015h---
18h WORD (call) type of address??? (test for 0001h seen)
1Ah WORD (call) length of buffer for host address
1Ch 110 BYTEs buffer containing ASCIZ host address
8Ah WORD (ret) offset of official host name
8Ch WORD (ret) offset of alias list???
8Eh WORD (ret) address type???
90h WORD (ret) length of an address in bytes???
92h WORD (ret) offset of address???
9Ah N BYTEs (ret) buffer for hostname, alias list, and host address
---function 0016h---
18h ??? buffer for ASCIZ protocol name
98h ???
---function 0017h---
18h WORD (call) protocol number
1Ah WORD (ret) ??? or 0001h
---function 0018h---
18h 128 BYTEs buffer containing ASCIZ ???
98h 128 BYTEs buffer containing ASCIZ ???
118h WORD (ret) ???
---function 0019h---
18h WORD port number
1Ah 128 BYTEs (call) ASCIZ host name
(ret) packed servent strctures???
9Ah WORD (ret) ???
---function 001Ah---
18h WORD (ret) 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
1Ch WORD (call) length of buffer for socket name
(ret) actual length of socket name
1Eh N BYTEs buffer for socket name
---function 001Bh---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
1Ch WORD (call) size of buffer for name
(ret) actual size of name
1Eh N BYTEs buffer for peer's name
---function 001Ch---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD direction: 0000h to get, 0001h to set
1Ch WORD socket's file handle
1Eh WORD option level
20h WORD option name
22h WORD (call) length of buffer for option value
(ret) actual length of option value
24h N BYTEs buffer for option value
---function 001Dh---
no additional fields
---function 001Eh---
18h WORD (ret) status: 0000h ??? or 0001h ???
1Ah WORD file handle which may or may not be a socket
---function 001Fh---
18h WORD (ret) file handle or FFFFh on error
1Ah DWORD (call) pointer to Socket Context Record (see #0503) of a
previously detached socket
---function 0020h---
18h WORD (ret) status: 0000h if successful or FFFFh on error
1Ah WORD socket's file handle
1Ch DWORD (ret) pointer to Socket Context Record (see #0503) for
the file handle
---function 0021h---
18h 64 BYTEs buffer for DESQview startup directory (see AX=DE25h)
---function 0022h---
18h DWORD (ret) task handle of new application
1Ch WORD size of .DVP data
1Eh 129 BYTEs ASCIZ ???
9Fh N BYTEs .DVP data (see #0353 at AX=102Ch)
---function 0023h---
18h WORD (ret) ??? or FFFFh on error
1Ah WORD socket's file handle???
---function 0024h---
18h WORD (ret) DOS error code (see #1366 at INT 21/AH=59h/BX=0000h)
0000h if successful
1Ah 129 BYTEs ASCIZ filename/pathname
11Bh 129 BYTEs ASCIZ canonicalized filename/pathname (see INT 21/AH=60h)
---function 0025h---
18h WORD value of AX
1Ah WORD value of BX
1Ch WORD (call) value of CX for call if AH value other than 12h
(call) number of stack parameters if AH value is 12h
(ret) returned CX for calls other than INT 15/AH=12h
1Eh WORD value of DX
20h WORD value of DI
22h WORD value of SI
24h WORD value of DS
26h WORD value of ES
28h WORD (ret) value of FLAGS after call
2Ah N DWORDs (call) stack parameters for INT 15/AH=12h call
(ret) stack results from INT 15/AH=12h call
---function 0026h---
18h WORD (call) Network Manager subfunction (see #0483)
(ret) status??? (0000h on error)
1Ah WORD (call) size of parameter data
(ret) size of returned data
1Ch N BYTEs (call) parameter data required by call (see #0484,#0485,#0501)
(ret) result data (see #0494,#0495,#0500)
---function 0027h---
18h WORD (ret) status: 0000h if successful, FFFFh on error
1Ah WORD socket's file handle
---functions 0028h,0029h---
18h WORD (call) file handle for which to set priority low/high
FFFFh to change calling task's priority
---function 002Ah---
no additional fields
(Table 0483)
Values for DESQview/X Network Manager subfunction:
0004h "so_exit"???
0005h "gethostbyname"
0006h "gethostname"
0009h "socket"
000Dh "gethostbyaddr"
000Fh "getprotobyname"
0010h get protocol name for protocol number
0011h "getservbyname"
0012h "getservbyport" (see #0487)
0013h "getsockname"??? (see #0488)
0016h "shutdown" (see #0489)
0017h kill Network Manager
0018h "getpeername"??? (see #0490)
0019h ??? (called by socket function 0000h) (see #0491)
001Ah ??? (see #0492)
001Bh "so_linkup" (see #0493)
001Dh "getnetstatus" get network services (see #0494)
001Fh "getpwuid"
0020h "getpwnam"
0021h "getpwvar"
0022h "crypt"
0023h "so_unlink"
0024h "getlogin" (see #0495)
0028h "sethostent"
0029h "gethostent"
002Ah "soaddhost"
002Bh "soupdatehost"
002Ch "sodeletehost"
002Dh "setservent"
002Eh "getservent"
002Fh "setpwent"
0030h "getpwent" (see #0496)
0031h "sethostpath" (see #0497)
0032h "endservent"
0033h "endhostent"
0034h "getnettype" get IP network number (see #0498)
0035h ??? (pops up Network Manager window)
0037h "getnettimeout" (see #0499)
0038h get machine name and IP address (see #0500)
0039h "getuid" (see #0501)
---DV/X v2.0+ ---
0041h "deletepwnam"
0045h "renamepw"
Format of Function 0026h/Subfunction 000Fh data:
Offset Size Description (Table 0484)
00h 8 BYTEs (ret) ???
Format of Function 0026h/Subfunction 0010h data:
Offset Size Description (Table 0485)
00h 2 BYTEs (ret) ???
02h WORD (ret) protocol number
04h WORD (call) protocol number for which to get name
06h WORD (ret) ???
08h var (ret) ASCIZ protocol name
N var (ret) ASCIZ protocol name
Format of Function 0026h/Subfunction 0011h data:
Offset Size Description (Table 0486)
00h 8 BYTEs ???
08h var (ret) ASCIZ protocol name
var (ret) ASCIZ ??? name
var (ret) ASCIZ ??? name
Format of Function 0026h/Subfunction 0012h data:
Offset Size Description (Table 0487)
00h 8 BYTEs (ret) ???
Format of Function 0026h/Subfunction 0013h data:
Offset Size Description (Table 0488)
00h 116 BYTEs (ret) ???
Format of Function 0026h/Subfunction 0016h ("shutdown") data:
Offset Size Description (Table 0489)
00h WORD (ret) shutdown status (0000h successful, FFFFh error)
02h 4 BYTEs (ret) ???
04h WORD (call) socket handle
06*h WORD (call) what (0 = receives, 1 = sends, 2 = both)
Format of Function 0026h/Subfunction 0018h data:
Offset Size Description (Table 0490)
00h 116 BYTEs (ret) ???
Format of Function 0026h/Subfunction 0019h data:
Offset Size Description (Table 0491)
00h 4 BYTEs (ret) ???
04h DWORD (ret) task handle of ???
Format of Function 0026h/Subfunction 001Ah data:
Offset Size Description (Table 0492)
00h 38 BYTEs (ret) ???
Format of Function 0026h/Subfunction 001Bh data:
Offset Size Description (Table 0493)
00h 10 BYTEs (ret) ???
Format of Function 0026h/Subfunction 001Dh return data [array]:
Offset Size Description (Table 0494)
00h WORD ??? or FFFFh if end of array
02h 7 BYTEs ???
09h 27 BYTEs ASCIZ name of service
Format of Function 0026h/Subfunction 0024h return data:
Offset Size Description (Table 0495)
00h var ASCIZ username
Format of Function 0026h/Subfunction 0030h data:
Offset Size Description (Table 0496)
00h WORD (call) UID or 0000h for current user
(ret) ???
02h WORD (ret) UID
04h 6 BYTEs (ret) ???
0Ah var (ret) ASCIZ username
var (ret) ASCIZ encrypted password
var (ret) ASCIZ initial ("home") directory
Format of Function 0026h/Subfunction 0031h ("sethostpath") data:
Offset Size Description (Table 0497)
00h 4 BYTEs ???
04h 144 BYTEs ASCIZ ???
Format of Function 0026h/Subfunction 0034h data:
Offset Size Description (Table 0498)
00h 1-3 BYTEs IP network number of caller's machine (low byte first)
Format of Function 0026h/Subfunction 0037h ("getnettimeout") return data:
Offset Size Description (Table 0499)
00h WORD (ret) timeout
02h 2 BYTEs (ret) ???
Format of Function 0026h/Subfunction 0038h return data:
Offset Size Description (Table 0500)
00h BYTE ???
01h 4 BYTEs IP address
05h var ASCIZ machine name
???
Format of Function 0026h/Subfunction 0039h ("getuid") return data:
Offset Size Description (Table 0501)
00h WORD user ID
02h 2 BYTEs ???
SeeAlso: #0497,#0500
(Table 0502)
Values for DESQview/X socket error code:
0000h successful
0009h "BADF" bad file handle
000Ch "ENOMEM" out of memory
000Eh "EFAULT" bad address
0016h "EINVAL" invalid argument
0018h "EMFILE" too many open files
0020h "EPIPE" ??? broken pipe
0023h "EWOULDBLOCK" operation cannot be completed at this time
0024h "EINPROGRESS" operation now in progress
0026h "ENOTSOCK" socket invalid
0028h "EMSGSIZE" message too long to send atomically
002Ch "ESOCKTNOSUPPORT" socket type not supported
002Fh "EAFNOSUPPORT" address family not supp. by protocol fam.
0031h "EDOM" argument too large
0038h "EISCONN" socket is already connected
0039h "ENOTCONN" socket is not connected
Format of DESQview/X Socket Context Record:
Offset Size Description (Table 0503)
00h DWORD pointer to next Socket Context Record, 0000h:0000h if last
04h WORD SFT index for socket, 00FFh if not connected, FFFFh if detached
06h WORD PSP segment of owner or 0000h
08h WORD mapping context of owning window (see #0342 at AX=1016h)
0Ah 2 BYTEs ???
0Ch WORD address family
0Eh WORD socket type
10h WORD protocol
12h WORD socket state
0001h created
0002h bound
0003h listening???
0005h connected
14h DWORD timer object handle
18h DWORD object handle (mailbox???)
1Ch DWORD object handle of parent of above object or 0000h:0000h
20h DWORD pointer to ??? or 0000h
24h 6 BYTEs ???
2Ah WORD file handle for socket or FFFFh
2Ch 2 BYTEs ???
2Eh WORD nonzero if socket nonblocking
---network connections only---
30h 2 BYTEs ???
32h WORD ???
34h 4 BYTEs (big-endian) IP address of remote
38h 6 BYTEs ???
--------Q-15DE2F-----------------------------
INT 15 - DESQview v2.50+ - "VIDEONOTIFY" - HAS DIRECT WINDOW BEEN ACTIVE?
AX = DE2Fh
Return: BX = status
0001h keyboard focus has been given to a direct window since the
last call
0000h if not
Notes: DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
Quarterdeck stated that this call would not be available under future
versions of DESQview Classic, but it is still present in v2.60
--------Q-15DE30-----------------------------
INT 15 - DESQview v2.50+ - "GETDVXVERSION" - GET DESQview/X VERSION
AX = DE30h
Return: BX = version (BH=major, BL=minor) or 0000h if not DESQview/X
Notes: DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
you must first check the DESQview version to verify that it is 2.50 or
greater
SeeAlso: INT 21/AH=2Bh/CX=4445h
--------Q-15DE31-----------------------------
INT 15 - DESQview/X v1.10 - ???
AX = DE31h
CX = ???
0000h ???
nonzero ???
???
Return: ???
--------b-15DF-------------------------------
INT 15 - Juko UNIQUE UX BIOS - TURBO MODE CONTROL
AH = DFh
AL = function
00h turn on Turbo mode
01h turn off Turbo mode
02h set Turbo mode according to hardware switch
SeeAlso: INT 13/AX=FFFFh
--------b-15E00F-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR DISPATCH
AX = E00Fh
ES:BX -> start of 2nd processor's execution
Return: AL = status
0Fh successful
00h failure
SeeAlso: AX=E10Eh,AX=E200h
--------b-15E10E-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR END-OF-DISPATCH
AX = E10Eh
ES:BX -> start of 2nd processor's execution
Return: AL = status
0Fh successful (halted)
00h failure (not halted)
SeeAlso: AX=E00Fh,AX=E200h
--------b-15E200-----------------------------
INT 15 - Compaq Systempro - MULTIPROCESSOR AVAILABLE
AX = E200h
Return: AX bit 15 set if 2nd processor available
SeeAlso: AX=E00Fh,AX=E10Eh
--------b-15E4-------------------------------
INT 15 - Tandy??? - ???
AH = E4h
AL = subfunction
21h, 89h, 8Ah, 8Bh called by 386MAX v6.01
DL = ???
Return: DL = 00h if successful???
Note: the section of code in 386MAX which calls these functions also checks
whether the ROM BIOS has both Tandy and Phoenix Technologies
signatures if these calls fail; the Tandy 1000SL/TL BIOS does not
support this function, however, returning the usual CF set/AH=86h for
"unsupported function".
--------b-15E4-------------------------------
INT 15 - Compaq ROM BIOS 03/08/93 and newer - ???
AH = E4h
AL = subfunction
00h get ???
Return: CF clear
AH = 00h
CX = 0000h
BX = ??? (read from [XBDA:0094h])
01h,02h unsupported by this ROM version
Return: CF set, AH = 86h
80h,90h,A0h,B0h,C0h,D0h,E0h,F0h set ???
Return: CF clear
AH = 00h
CX = 0000h
BX = ???
81h,91h,A1h,B1h,C1h,D1h,E1h,F1h unsupported by 3/8/93&4/8/93 ROMs
Return: CF set, AH = 86h
Notes: functions 80h/90h/etc. are not supported by the 4/8/93 EISA System ROM
these functions are not supported by the 7/26/93 LTE Lite 386 ROM
--------b-15E800-----------------------------
INT 15 - Compaq Contura - GET ???
AX = E800h
Return: AX = 0000h
BH = 00h
BL = ??? (read from port 0C7Ch)
CH = ???
CL = ???
DX = 0000h
Note: also supported by 3/8/93 DESKPRO/i and 7/26/93 LTE Lite 386 ROM BIOS
--------b-15E800-----------------------------
INT 15 - Compaq Contura Aero, Contura 400 - GET SYSTEM MODEL CODE???
AX = E800h
BX = ??? (0000h)
Return: CF clear if successful
BH = 02h
BL = submodel??? (0Ch,0Dh,34h,38h,40h,44h,48h,64h,68h)
CF set on error
others???
Notes: used by Compaq's SOFTPAQ number 0937 EPPBIOS.SYS to determine whether
the Enhanced Parallel Port expected by that driver is available
used by Compaq's SOFTPAW number 0856 VOLCTRL.EXE to determine whether
volume control hardware expected by that driver is available
--------b-15E800-----------------------------
INT 15 - Compaq Prolinea - GET ???
AX = E800h
BX = ??? (1369h)
Return: BH = 01h
BL = ???
others???
Note: used by Compaq's SOFTPAQ number 0718 INT10_04.SYS to determine whether
the fix that driver applies is required (will not install if BX on
return is other than 010Eh or 010Fh)
SeeAlso: AX=E802h
--------b-15E801-----------------------------
INT 15 - Phoenix BIOS v4.0 - GET MEMORY SIZE FOR >64M CONFIGURATIONS
AX = E801h
Return: CF clear if successful
AX = extended memory between 1M and 16M, in K (max 3C00h = 15MB)
BX = extended memory above 16M, in 64K blocks
CX = configured memory 1M to 16M, in K
DX = configured memory above 16M, in 64K blocks
CF set on error
Notes: supported by the A03 level (6/14/94) and later XPS P90 BIOSes, as well
as the Compaq Contura, 3/8/93 DESKPRO/i, and 7/26/93 LTE Lite 386 ROM
BIOS
supported by AMI BIOSes dated 8/23/94 or later
this interface is used by Windows NT 3.1, OS/2 v2.11/2.20, and is
used as a fall-back by newer versions if AX=E820h is not supported
SeeAlso: AH=8Ah"Phoenix",AX=E802h,AX=E820h,AX=E881h"Phoenix"
--------b-15E802-----------------------------
INT 15 - Compaq Contura - GET ???
AX = E802h
Return: CF clear
AX = 0000h
BX = ???
CX = 0000h
Note: this function is also supported by the LTE Lite 25c, 25E, and 486; not
supported by LTE Lite 20 and 25.
SeeAlso: AX=E801h"Phoenix"
--------b-15E820-----------------------------
INT 15 - newer BIOSes - GET SYSTEM MEMORY MAP
AX = E820h
EAX = 0000E820h
EDX = 534D4150h ('SMAP')
EBX = continuation value or 00000000h to start at beginning of map
ECX = size of buffer for result, in bytes (should be >= 20 bytes)
ES:DI -> buffer for result (see #0505)
Return: CF clear if successful
EAX = 534D4150h ('SMAP')
ES:DI buffer filled
EBX = next offset from which to copy or 00000000h if all done
ECX = actual length returned in bytes
CF set on error
AH = error code (86h) (see #0422 at INT 15/AH=80h)
Notes: originally introduced with the Phoenix BIOS v4.0, this function is
now supported by most newer BIOSes, since various versions of Windows
call it to find out about the system memory
a maximum of 20 bytes will be transferred at one time, even if ECX is
higher; some BIOSes (e.g. Award Modular BIOS v4.50PG) ignore the
value of ECX on entry, and always copy 20 bytes
some BIOSes expect the high word of EAX to be clear on entry, i.e.
EAX=0000E820h
if this function is not supported, an application should fall back
to AX=E802h, AX=E801h, and then AH=88h
the BIOS is permitted to return a nonzero continuation value in EBX
and indicate that the end of the list has already been reached by
returning with CF set on the next iteration
this function will return base memory and ISA/PCI memory contiguous
with base memory as normal memory ranges; it will indicate
chipset-defined address holes which are not in use and motherboard
memory-mapped devices, and all occurrences of the system BIOS as
reserved; standard PC address ranges will not be reported
SeeAlso: AH=C7h,AX=E801h"Phoenix",AX=E881h,MEM xxxxh:xxx0h"ACPI"
Format of Phoenix BIOS system memory map address range descriptor:
Offset Size Description (Table 0504)
00h QWORD base address
08h QWORD length in bytes
10h DWORD type of address range (see #0505)
(Table 0505)
Values for System Memory Map address type:
01h memory, available to OS
02h reserved, not available (e.g. system ROM, memory-mapped device)
03h ACPI Reclaim Memory (usable by OS after reading ACPI tables)
04h ACPI NVS Memory (OS is required to save this memory between NVS
sessions)
other not defined yet -- treat as Reserved
SeeAlso: #0504
--------b-15E881-----------------------------
INT 15 - Phoenix BIOS v4.0 - GET MEMORY SIZE FOR >64M CONFIGURATIONS (32-bit)
AX = E881h
Return: CF clear if successful
EAX = extended memory between 1M and 16M, in K (max 3C00h = 15MB)
EBX = extended memory above 16M, in 64K blocks
ECX = configured memory 1M to 16M, in K
EDX = configured memory above 16M, in 64K blocks
CF set on error
Notes: supported by AMI BIOSes dated 8/23/94 or later
this interface is used by Windows NT 3.1, OS/2 v2.11/2.20, and is
used as a fall-back by newer versions if AX=E820h is not supported
SeeAlso: AX=E801h"Phoenix",AX=E820h"Phoenix"
--------m-15F200CX454D-----------------------
INT 15 - Tandon memory mapper - Tandon MAPPER HARDWARE INITIALIZATION CHECK ???
AX = F200h
CX = 454Dh
Return: CF clear if hardware already initialised
BX = upper RAM areas in use
bit 0: C000-C3FF
bit 1: C400-C7FF
...
bit 11: EC00-EFFF
CF set if hardware not initialised yet
--------B-1600-------------------------------
INT 16 - KEYBOARD - GET KEYSTROKE
AH = 00h
Return: AH = BIOS scan code
AL = ASCII character
Notes: on extended keyboards, this function discards any extended keystrokes,
returning only when a non-extended keystroke is available
the BIOS scan code is usually, but not always, the same as the hardware
scan code processed by INT 09. It is the same for ASCII keystrokes
and most unshifted special keys (F-keys, arrow keys, etc.), but
differs for shifted special keys
some (older) clone BIOSes do not discard extended keystrokes and manage
function AH=00h and AH=10h the same
the K3PLUS v6.00+ INT 16 BIOS replacement doesn't discard extended
keystrokes (same as with functions 10h and 20h), but will always
translate prefix E0h to 00h. This allows old programs to use extended
keystrokes and should not cause compatibility problems
SeeAlso: AH=01h,AH=05h,AH=10h,AH=20h,AX=AF4Dh"K3PLUS",INT 18/AH=00h
SeeAlso: INT 09,INT 15/AH=4Fh
--------B-1601-------------------------------
INT 16 - KEYBOARD - CHECK FOR KEYSTROKE
AH = 01h
Return: ZF set if no keystroke available
ZF clear if keystroke available
AH = BIOS 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 by IBM and most fully-compatible BIOSes in
the process of checking whether a non-extended keystroke is available
some (older) clone BIOSes do not discard extended keystrokes and manage
function AH=00h and AH=10h the same
the K3PLUS v6.00+ INT 16 BIOS replacement doesn't discard extended
keystrokes (same as with functions 10h and 20h), but will always
translate prefix E0h to 00h. This allows old programs to use extended
keystrokes and should not cause compatibility problems
SeeAlso: AH=00h,AH=11h,AH=21h,INT 18/AH=01h,INT 09,INT 15/AH=4Fh
--------B-1602-------------------------------
INT 16 - KEYBOARD - GET SHIFT FLAGS
AH = 02h
Return: AL = shift flags (see #0506)
AH destroyed by many BIOSes
SeeAlso: AH=12h,AH=22h,INT 17/AH=0Dh,INT 18/AH=02h,MEM 0040h:0017h
Bitfields for keyboard shift flags:
Bit(s) Description (Table 0506)
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: #0511,#3414,MEM 0040h:0017h,#M010
--------B-1603-------------------------------
INT 16 - KEYBOARD - SET TYPEMATIC RATE AND DELAY
AH = 03h
AL = subfunction
00h set default delay and rate (PCjr and some PS/2)
01h increase delay before repeat (PCjr)
02h decrease repeat rate by factor of 2 (PCjr)
03h increase delay and decrease repeat rate (PCjr)
04h turn off typematic repeat (PCjr and some PS/2)
05h set repeat rate and delay (AT,PS)
BH = delay value (00h = 250ms to 03h = 1000ms)
BL = repeat rate (00h=30/sec to 0Ch=10/sec [def] to 1Fh=2/sec)
06h get current typematic rate and delay (newer PS/2s)
Return: BL = repeat rate (above)
BH = delay (above)
Return: AH destroyed by many BIOSes
Note: use INT 16/AH=09h to determine whether some of the subfunctions are
supported
SeeAlso: INT 16/AH=09h,AH=29h"HUNTER",AH=2Ah"HUNTER"
--------B-1604-------------------------------
INT 16 - KEYBOARD - SET KEYCLICK (PCjr only)
AH = 04h
AL = keyclick state
00h off
01h on
Return: AH destroyed by many BIOSes
SeeAlso: AH=03h,AH=04h"K3PLUS"
--------b-1604-------------------------------
INT 16 - Tandy 2000 - KEYBOARD - FLUSH KEYBOARD BUFFER
AH = 04h
Note: this interrupt is identical to INT 51 on the Tandy 2000
SeeAlso: INT 16/AH=00h,INT 16/AH=02h,INT 16/AH=05h"Tandy 2000"
SeeAlso: INT 51"Tandy 2000"
--------K-1604-------------------------------
INT 16 - K3PLUS v6.22+ - SET KEYCLICK
AH = 04h
AL = keyclick state
00h keyclick off, leave loudness setting unchanged
01h keyclick on, leave loudness setting unchanged
else
bit 0: keyclick enabled if set
bits 7-1: new keyclick loudness (non-zero)
Return: AH destroyed by many BIOSes
Note: Applications which try to set a new loudness, but are unsure of the
results of other INT 16/AH=04h implementations, should set the new
loudness first, and then call this function again with AL=01h or
AL=00h
SeeAlso: AH=03h,AH=04h"KEYBOARD",AX=AF4Dh
--------B-1605-------------------------------
INT 16 - KEYBOARD - STORE KEYSTROKE IN KEYBOARD BUFFER (AT/PS w enh keybd only)
AH = 05h
CH = BIOS scan code
CL = ASCII character
Return: AL = status
00h if successful
01h if keyboard buffer full
AH destroyed by many BIOSes
Notes: under DESQview, a number of "keystrokes" invoke specific
DESQview-related actions when they are read from the keyboard
buffer (see #0507)
similarly, some "keystrokes" invoke special functions on the HP 100LX
and HP 200LX (see #0508)
SeeAlso: AH=00h,AH=25h"K3",AH=71h,AX=AF4Dh,AH=FFh,INT 15/AX=DE10h
SeeAlso: MEM 0040h:001Eh
(Table 0507)
Values for pseudo-keystrokes for DESQview:
38FBh or FB00h switch to next window (only if main menu already popped up)
38FCh or FC00h pop up DESQview main menu
38FEh or FE00h close the current window
38FFh or FF00h pop up DESQview learn menu
(Table 0508)
Values for pseudo-keystrokes for HP 100LX/200LX:
EE00h pop up topcard display and set other system manager applications
into sleep mode
--------B-1605-------------------------------
INT 16 - KEYBOARD - SELECT KEYBOARD LAYOUT (PCjr only)
AH = 05h
AL = function
01h set keyboard layout to French
02h set keyboard layout to German
03h set keyboard layout to Italian
04h set keyboard layout to Spanish
05h set keyboard layout to UK
80h check if function supported
Return: AL <> 80h if supported
Return: ???
AH destroyed by many BIOSes
Note: this function is called by the DOS 3.2 KEYBxx.COM
SeeAlso: AH=92h,AH=A2h,AX=AF4Dh
--------b-1605-------------------------------
INT 16 - Tandy 2000 - KEYBOARD - RESET KEYBOARD
AH = 05h
Desc: reset the keyboard and flush the keyboard buffer
Note: this interrupt is identical to INT 51 on the Tandy 2000
SeeAlso: INT 16/AH=00h,INT 16/AH=02h,INT 16/AH=03h,INT 51"Tandy 2000"
--------B-1609-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD FUNCTIONALITY
AH = 09h
Return: AL = supported keyboard functions (see #0509)
AH destroyed by many BIOSes
Note: this function is only available if bit 6 of the second feature byte
returned by INT 15/AH=C0h is set (see #0433)
SeeAlso: AH=03h,AH=0Ah,AH=10h,AH=11h,AH=12h,AH=20h,AH=21h,AH=22h,INT 15/AH=C0h
Bitfields for supported keyboard functions:
Bit(s) Description (Table 0509)
7 reserved
6 INT 16/AH=20h-22h supported (122-key keyboard support)
5 INT 16/AH=10h-12h supported (enhanced keyboard support)
4 INT 16/AH=0Ah supported
3 INT 16/AX=0306h supported
2 INT 16/AX=0305h supported
1 INT 16/AX=0304h supported
0 INT 16/AX=0300h supported
SeeAlso: #0435
--------K-160A-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD ID
AH = 0Ah
Return: BX = keyboard ID (see #0510)
AH destroyed by many BIOSes
Notes: check return value from AH=09h to determine whether this function is
supported
this function is also supported by the K3PLUS v6.00+ INT 16 BIOS
replacement
SeeAlso: AH=09h,AX=AF4Dh,MEM 0040h:00C2h"AMI"
(Table 0510)
Values for keyboard ID:
0000h no keyboard attached
41ABh Japanese "G" keyboard (translate mode)
MF2 Keyboard (usually in translate mode)
54ABh Japanese "P" keyboard (translate mode)
83ABh Japanese "G" keyboard (pass-through mode)
MF2 Keyboard (pass-through mode)
84ABh Japanese "P" keyboard (pass-through mode)
90ABh old Japanese "G" keyboard
91ABh old Japanese "P" keyboard
92ABh old Japanese "A" keyboard
--------B-1610-------------------------------
INT 16 - KEYBOARD - GET ENHANCED KEYSTROKE (enhanced kbd support only)
AH = 10h
Return: AH = BIOS scan code
AL = ASCII character
Notes: if no keystroke is available, this function waits until one is placed
in the keyboard buffer
the BIOS scan code is usually, but not always, the same as the hardware
scan code processed by INT 09. It is the same for ASCII keystrokes
and most unshifted special keys (F-keys, arrow keys, etc.), but
differs for shifted special keys.
unlike AH=00h, this function does not discard extended keystrokes
INT 16/AH=09h can be used to determine whether this function is
supported, but only on later model PS/2s
SeeAlso: AH=00h,AH=09h,AH=11h,AH=20h,MEM 0040h:0019h,MEM 0040h:001Eh
--------B-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 = BIOS 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
some versions of the IBM BIOS Technical Reference erroneously report
that CF is returned instead of ZF
INT 16/AH=09h can be used to determine whether this function is
supported, but only on later model PS/2s
SeeAlso: AH=01h,AH=09h,AH=10h,AH=21h,INT 09,INT 15/AH=4Fh
--------B-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) (see #0511)
AH = shift flags 2 (see #0512)
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
INT 16/AH=09h can be used to determine whether this function is
supported, but only on later model PS/2s
many BIOSes (including at least some versions of Phoenix and AMI) will
destroy AH on return from functions higher than AH=12h, returning
12h less than was in AH on entry (due to a chain of DEC/JZ
instructions)
SeeAlso: AH=02h,AH=09h,AH=22h,AH=51h,INT 17/AH=0Dh,MEM 0040h:0017h
Bitfields for keyboard shift flags 1:
Bit(s) Description (Table 0511)
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: #0506,#0512,MEM 0040h:0017h,#M010
Bitfields for keyboard shift flags 2:
Bit(s) Description (Table 0512)
7 SysReq key pressed (SysReq is often labeled SysRq)
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
SeeAlso: #0511,MEM 0040h:0018h,#M011
--------J-1613-------------------------------
INT 16 - DOS/V - DOUBLE-BYTE CHARACTER SET SHIFT CONTROL
AH = 13h
AL = function
00h set shift status
DX = shift status (see #0513), must preserve internal status
bits
01h get shift status
Return: DX = current shift status (see #0513)
Note: these functions are supplied by the Japanese Front-End Processor
SeeAlso: AH=14h,INT 21/AX=6301h
Bitfields for DOS/V shift status:
Bit(s) Description (Table 0513)
0 full-size rather than half-size
2-1 character input mode
00 alphanumeric, 01 Katakana, 10 Hiragana, 11 unused
5-3 internal status
6 Romaji enabled
7 Katakana to Kanji conversion enabled
15-8 internal status
--------J-1614-------------------------------
INT 16 - DOS/V - SHIFT STATUS DISPLAY CONTROL
AH = 14h
AL = function
00h enable display
01h disable display
02h get display state
Return: AL = current state (00h enabled, 01h disabled)
Desc: control the screen-bottom shift status row(s) for the Japanese
Front-End Processor
SeeAlso: AH=13h,INT 10/AH=19h,INT 10/AH=1Dh
--------B-1620-------------------------------
INT 16 - KEYBOARD - GET 122-KEY KEYSTROKE (122-key kbd support only)
AH = 20h
Return: AH = BIOS scan code (see AH=10h)
AL = ASCII character
Note: use AH=09h to determine whether this function is supported
SeeAlso: AH=00h,AH=09h,AH=10h,AH=21h,AH=22h
--------b-1620------------------------------------
INT 16 - HUNTER 16 - SET TEMPORARY SHIFT
AH = 20h
AL = shift status (see #0514)
Notes: the Husky Hunter 16 is an 8088-based ruggedized laptop. Other family
members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
the user can override the specified settings by pressing the keys
Bitfields for HUNTER 16 shift status:
Bit(s) Description (Table 0514)
4 Scroll Lock on
5 Num Lock on
6 Caps Lock on
--------K-1620-------------------------------
INT 16 O - K3 v1.5x, K3PLUS v5.xx - GET EXTENDED BUFFER STATE
AH = 20h
Return: AX = K3 version
ES:BX -> extended keyboard buffer start
ES:DX -> extended keyboard buffer end
ES:SI -> next keystroke
ES:DI -> last keystroke in buffer
CX = number of keystrokes in buffer
Program: K3PLUS is an extended keyboard driver by Matthias Paul and Axel C.
Frinke, originally based on the K3 extended German keyboard driver
by Martin Gerdes published in c't magazine in 1988
Note: this function was normally unsupported under K3PLUS v6.00-v6.22 and
is no longer supported by v6.30+; use AX=AF20h instead
SeeAlso: AH=25h"K3",AX=AF20h,INT 2F/AX=D44Fh/BX=0000h,INT 2F/AX=ED58h
--------B-1621-------------------------------
INT 16 - KEYBOARD - CHECK FOR 122-KEY KEYSTROKE (122-key kbd support only)
AH = 21h
Return: ZF set if no keystroke available
ZF clear if keystroke available
AH = BIOS scan code
AL = ASCII character
Notes: use AH=09h to determine whether this function is supported
some versions of the IBM BIOS Technical Reference erroneously report
that CF is returned instead of ZF
K3PLUS v6.00+ supports this function as an alias of AH=11h
SeeAlso: AH=01h,AH=09h,AH=11h,AH=20h,AH=21h
--------b-1621------------------------------------
INT 16 - HUNTER 16 - CONTROL SHIFT KEYS
AH = 21h
AL = shift keys to control (see #0506)
BL = shift state for disabled keys
Note: If a bit in AL is set the key is disabled and set to the state of the
corresponding bit in BL
SeeAlso: AH=20h"HUNTER",AH=22h"HUNTER"
--------B-1622-------------------------------
INT 16 - KEYBOARD - GET 122-KEY SHIFT STATUS (122-key kbd support only)
AH = 22h
Return: AL = shift flags 1 (see #0511)
AH = shift flags 2 (see #0512)
Notes: use AH=09h to determine whether this function is supported
K3PLUS v6.00+ supports this function as an alias of AH=12h
SeeAlso: AH=02h,AH=09h,AH=12h,AH=20h,AH=21h
--------b-1622------------------------------------
INT 16 - HUNTER 16 - CONTROL CTRL-ALT-DEL
AH = 22h
AL = new Ctrl-Alt-Del state (00h enabled, nonzero disabled)
BX = 0708h
CX = 0910h
DX = 1112h
Return: AL = 00h if successful
SeeAlso: AH=21h"HUNTER",AH=23h"HUNTER",AH=2Ah
--------b-1623------------------------------------
INT 16 - HUNTER 16 - CONTROL EMERGENCY BREAKOUT
AH = 23h
AL = new state of breakout (00h enabled, nonzero disabled)
BX = 0708h
CX = 0910h
DX = 1112h
Return: AL = 00h if successful
Desc: Enables or disables the emergency breakout feature, where the
Hunter 16 at power on checks whether the X and P keys are pressed.
If so the machine will boot rather than continue the running program
SeeAlso: AH=22h"HUNTER"
--------b-1624------------------------------------
INT 16 - HUNTER 16 - REDEFINE KEY CODES
AH = 24h
AL = Matrix Code (see #0515)
BL = new Key code
Return: AL = status (00h successful, nonzero failed)
SeeAlso: AH=2Bh,AH=2Ch
(Table 0515)
Values for HUNTER 16 Matrix Code:
Code Key Code Key Code Key
00h Esc key 1Eh Space 3Bh L
01h 1 21h 0 3Ch ,
02h Q 22h - 3Eh Right shift
03h Tab 23h ' 42h 8
04h Num Lock 24h Keypad 4 43h 7
05h \ 25h Enter 44h U
08h LShift 26h Keypad 7 45h I
09h Ctrl 27h . 46h J
0Ah "Paw" key 28h Keypad 1 47h K
0Bh 2 29h Keypad 0 48h M
0Ch W 2Ch = 49h N
0Dh A 2Dh Backspace 4Ah /
0Eh S 2Eh Keypad 8 4Dh 6
0Fh Z 2Fh Keypad 9 4Eh 5
11h Alt 30h Keypad 5 4Fh T
16h 4 31h Keypad 6 50h Y
17h 3 32h Keypad 2 51h G
18h E 33h Keypad 3 52h H
19h R 34h Keypad . 53h B
1Ah D 37h 9 54h V
1Bh F 38h O 55h #
1Ch X 39h P 58h Pwr
1Dh C 3Ah ; 59h Shift Pwr
--------b-1625------------------------------------
INT 16 - HUNTER 16 - RESET KEYBOARD
AH = 25h
Return: AL = 00h
Desc: restores the standard keyboard layout after any remapping
SeeAlso: AH=24h,AH=2Bh,AH=2Ch
--------K-1625-------------------------------
INT 16 O - K3 v1.5x, K3PLUS v5.xx - COPY INTO EXTENDED BUFFER
AH = 25h
CX = number of keystrokes to copy
ES:SI -> buffer containing keystrokes
Return: CF clear if successful
CF set on error (i.e. buffer full)
CX = number of keystrokes NOT transferred
ES:SI -> first keystroke not transferred
Note: this function was normally unsupported under K3PLUS v6.00-v6.22 and
is no longer supported by v6.30+; use AX=AF25h instead
SeeAlso: AH=05h,AH=20h"K3",AX=AF25h,INT 2F/AX=D44Fh/BX=0001h
--------b-1626------------------------------------
INT 16 - HUNTER 16 - CONTROL KEYCLICK
AH = 26h
AL = new state of keyclicks (00h disabled, 01h enabled)
Return: AL = 00h
SeeAlso: AH=2Ah
--------b-1627------------------------------------
INT 16 - HUNTER 16 - CONTROL SCREEN DUMP AREA
AH = 27h
AL = what to dump
00h whole (virtual) window
01h LCD window only
Return: AL = 00h
Desc: control whether printscren dumps the whole 80x25 screen or only the
part displayed in the LCD window
Note: the Hunter 16 has a 240x64 LCD display which serves as a window into
a 640x200 virtual screen
--------b-1629------------------------------------
INT 16 - HUNTER 16 - GET KEY REPEAT
AH = 29h
Return: BL = Typematic rate (characters per second) (see #0516)
BH = delay (00h = 250ms, 01h = 500ms, 02h = 750ms, 03h = 1s)
SeeAlso: AH=03h,AH=2Ah
(Table 0516)
Values for HUNTER 16 Typematic rate:
00h 30.0 08h 15.0 10h 7.5 18h 3.7
01h 26.7 09h 13.3 11h 6.7 19h 3.3
02h 24.0 0Ah 12.0 12h 6.0 1Ah 3.0
03h 21.8 0Bh 10.9 13h 5.5 1Bh 2.7
04h 20.0 0Ch 10.0 14h 5.0 1Ch 2.5
05h 18.5 0Dh 9.2 15h 4.6 1Dh 2.3
06h 17.1 0Eh 8.6 16h 4.3 1Eh 2.1
07h 16.0 0Fh 8.0 17h 4.0 1Fh 2.0
SeeAlso: AH=2Ah
--------b-162A------------------------------------
INT 16 - HUNTER 16 - CONTROL KEY REPEAT
AH = 2Ah
AL = new state of keyboard autorepeat (00h disabled, 01h enabled)
SeeAlso: AH=03h,AH=26h,AH=29h,AH=2Bh
--------b-162B------------------------------------
INT 16 - HUNTER 16 - REDEFINE KEY SCAN CODES
AH = 2Bh
AL = which key table to redefine
00h unshifted
01h shifted
02h Numlock
BH = standard scan code of key (00h-80h)
BL = new scan code
Desc: redefine the generated scan code from BH to BL
SeeAlso: AH=24h,AH=2Ah,AH=2Ch
--------b-162C------------------------------------
INT 16 - HUNTER 16 - REDEFINE RAW KEY CODES
AH = 2Ch
AL = Matrix code of key (see AH=29h)
BL = new key code
Return: AL = status (00h success, nonzero failed)
Desc: redefine the key code generated by holding the PAW key down and
pressing the key in AL
SeeAlso: AH=24h,AH=2Bh
--------b-162D------------------------------------
INT 16 - HUNTER 16 - CONTROL BREAK KEYS
AH = 2Dh
AL = enabled break keys
bit 0 Ctrl-C
bit 1 Ctrl-Break
BX = 0708h
CX = 0910h
DX = 1112h
Return: AL = status (00h success, FFh failed)
SeeAlso: AH=21h"HUNTER"
--------U-163577-----------------------------
INT 16 U - TextWare TWTSR - API
AX = 3577h
CX = function
00CBh ???
Return: AX = 0000h
BX = 0000h
DX:CX -> ???
00CCh uninstall
Return: AX = status
0000h successful
FFFDh unable to unload because vectors taken
00CDh ???
Return: AX = 0000h
BX = 0000h
DX:CX -> ???
other
Return: AX = 5345h ('SE')
Program: TWTSR is a TSR which allows the TextWare hypertext browser to be
popped up via hotkey
SeeAlso: AX=D724h
--------U-164252-----------------------------
INT 16 - TEXTCAP 2.0 - INSTALLATION CHECK
AX = 4252h
Return: AX = 5242h if installed
Program: TEXTCAP 2.0 is a heavily modified (by Gisbert W. Selke) version of
the PC Magazine utility CAPTURE written by Tom Kihlken
SeeAlso: AX=4253h,AX=4254h
--------U-164253-----------------------------
INT 16 - TEXTCAP 2.0 - UNINSTALL
AX = 4253h
Return: AX = segment of resident code
Notes: the uninstall code does not check whether interrupt vectors have been
chained by other programs
the caller must free the main memory block (using the returned segment)
SeeAlso: AX=4252h,AX=4254h
--------U-164254-----------------------------
INT 16 - TEXTCAP 2.0 - DUMP TEXT SCREEN TO FILE
AX = 4254h
Return: AX = status
4254h if screen dump will be written as soon as disk becomes idle
5442h if screen dump written
SeeAlso: AX=4252h,AX=4253h
--------e-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
--------e-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
--------e-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 (see #0517)
CX = selected country code (33 = France, 49 = Germany, etc)
DX = baudrate divisor (115200/DX = baudrate)
SeeAlso: AX=4500h
Bitfields for Shamrock Software EMAIL flags:
Bit(s) Description (Table 0517)
0 ISO code
1 pause
2 linefeed
3 ANSI sequences
--------e-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
--------e-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)
bit 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
--------e-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
--------e-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
--------K-164B-------------------------------
INT 16 - Frank Klemm Keyboard Driver v2.0 - API
AH = 4Bh
CX = code or action
0000h-FEFFh key code
FF00h-FFFFh action (see #0518)
BL = scan code (normal keys) or scan code + 60h (enhanced keys)
BH = shift state (see #0519)
Return: CX = previous code or action
(Table 0518)
Values for Frank Klemm Keyboard Driver action code:
FF00h no action
FF01h hardcopy
FF02h left shift
FF03h right shift
FF04h left Ctrl
FF05h right Ctrl
FF06h left Alt
FF07h right Alt / AltGr
FF08h CapsLock
FF09h NumLock
FF0Ah ScrlLock
FF0Bh Insert (returns code 5200h or 52E0h)
FF0Ch Pause
FF0Dh Ctrl-Break function
FF0Eh warm boot via far jump to F000h:FFF0h
FF0Fh terminate current program
FF10h key for entering keys via Alt-numpad (read-only)
FF11h clear keyboard buffer
FF12h reset (warmboot on XT)
FF13h mouse sensitivity (read-only)
FF14h keyjobs (read-only)
FF15h SysRq
FF16h turn on CPU cache (486+)
FF17h turn off CPU cache (486+)
SeeAlso: #0519
(Table 0519)
Values for Frank Klemm Keyboard Driver shift state:
00h no shift keys
01h either Shift
02h either Ctrl
03h left Alt
04h Ctrl + Alt
---standard keyboard---
05h right Alt / AltGr
---Russian keyboard---
05h Russian + no shift keys
06h Russian + either Shift
SeeAlso: #0518
--------K-164D4F-----------------------------
INT 16 - M16_KBD.COM v5.6 - INSTALLATION CHECK
AX = 4D4Fh
Return: AX = 6F6Dh if installed
ES = segment of resident code
Program: M16_KBD is a shareware Cyrillic keyboard driver by I.V. Morozov
SeeAlso: INT 10/AX=1130h/BX=4D4Fh
--------J-165000-----------------------------
INT 16 - KEYBOARD - AX PC - SET KEYBOARD COUNTRY CODE
AX = 5000h
BX = country code
0001h USA (English), 0051h Japan
Return: AL = status
00h successful
01h bad country code
02h other error
Notes: the K3PLUS v6.00+ INT 16 BIOS replacement will switch between the
supported country specific layout (e.g. BX=0031h Germany, BX=001Fh
Netherlands, BX=0020h Belgium, BX=0022h Spain) (as with <Ctrl>+
<Alt>+<F2>) and K3PLUS' transparent mode (as with <Ctrl>+<Alt>+<F1>).
In transparent mode (BX=0001h), K3PLUS chains to the underlying
driver (normally the BIOS driver with US-layout). K3PLUS beeps on
mode changes
SeeAlso: AX=5001h,AX=AF4Dh,INT 10/AX=5000h,INT 17/AX=5000h
--------J-165001-----------------------------
INT 16 - KEYBOARD - AX PC - GET KEYBOARD COUNTRY CODE
AX = 5001h
Return: AL = status
00h successful
BX = country code
02h error
Note: also supported by K3PLUS v6.00+
SeeAlso: AX=5000h,INT 10/AX=5001h,INT 17/AX=5001h
--------J-1651-------------------------------
INT 16 - KEYBOARD - AX PC - READ SHIFT KEY STATUS
AH = 51h
Return: AL = standard shift key states (see #0506,#0511)
AH = Kana lock (00h off, 01h on)
Note: also supported by K3PLUS v6.00+, but K3PLUS always returns AH=00h
SeeAlso: AH=02h,AH=12h,AH=22h
--------t-165453BX5242-----------------------
INT 16 - TSRBONES - INSTALLATION CHECK
AX = 5453h ('TS')
BX = 5242h ('RB')
CX = 4F4Eh ('ON')
DX = 4553h ('ES')
Return: AX = 4553h if installed
BX = 4F4Eh if installed
CX = 5242h if installed
DX = 5453h if installed
Program: TSRBONES is a skeletal TSR framework by Robert Curtis Davis
Note: these values are the default as the TSRBONES package is distributed,
but will normally be changed when implementing an actual TSR with
the TSRBONES skeleton
SeeAlso: INT 2D/AL=00h"AMIS"
--------A-165500-----------------------------
INT 16 C - Microsoft Word internal - MICROSOFT WORD COOPERATION WITH TSR
AX = 5500h
Return: AX = 4D53h ('MS') 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 09 and INT 16
handlers; otherwise it assumes that the TSR will handle the keyboard
SeeAlso: AX=55FFh,INT 1A/AX=3601h
--------A-1655FE-----------------------------
INT 16 CU - Microsoft QBASIC internal - MICROSOFT COOPERATION WITH TSR
AX = 55FEh
DX = function
0000h initialize
ES:BX -> ??? function
ES:CX -> ??? structure
FFFFh shutdown/reset
Return: AX = result
4D4Bh only the INT 1B handler will be installed.
other: handlers for INT 08, INT 09, INT 16, INT 1B, and INT 1C
are installed
Notes: The pointer in ES:CX seems to point at a structure defining a callback
function when new keyboard keys are pressed. If a TSR returns
AX=4D4Bh, QBASIC will stop (with IRQ's and interrupts enabled).
these calls are also made by MS-DOS 6.0's DOSSHELL at startup, exit,
and before/after shelling out
since EDIT.COM and HELP.COM merely invoke QBASIC, those two programs
will also cause this interface to be invoked
K3PLUS v6.07+ supports this function, but will never invoke the
callback function
SeeAlso: AX=5500h,AX=AF4Dh,INT 1A/AX=3601h
--------U-1655FF-----------------------------
INT 16 C - Microsoft Word - TSR COOPERATION???
AX = 55FFh
BX >= 0004h (version of Microsoft Word [BL = major] ???)
CX = function
0000h set ??? flag
other clear ??? flag
Notes: hooks intercepting this call are present in SWAPSH and SWAPDT v1.77j,
distributed with PC Tools v7, as well as the Trusted Access
SCRNBLNK.COM; this may be part of the standard TesSeRact library
known to be called by the German edition of Microsoft Word 5.0
SeeAlso: AX=5500h,INT 2F/AX=5453h
--------c-165758BX4858-----------------------
INT 16 U - Netroom CACHECLK - INSTALLATION CHECK
AX = 5758h
BX = 4858h ('HX')
DX = 4443h ('DC')
CX <> 5758h
Return: BX = 6878h if installed
CX = 6463h if installed
AX = code segment of TSR
CX = internal version??? (v3.00 returns 0100h)
Program: CACHECLK is a "cloaked" disk cache included with Netroom
Notes: if CX=5758h on entry, CACHECLK returns with all registers unchanged
the cache statistics are located early in the segment pointed at by
AX on return
SeeAlso: INT 2F/AX=5758h
--------m-165758BX5754-----------------------
INT 16 U - Netroom ??? - ???
AX = 5758h
BX = 5754h
???
Return: ???
--------m-165758BX5755-----------------------
INT 16 U - Netroom ??? - ???
AX = 5758h
BX = 5755h
DS:SI -> ???
Return: ???
--------m-165758BX5756-----------------------
INT 16 U - Netroom ??? - INSTALLATION CHECK
AX = 5758h
BX = 5756h
Return: BX <> 5756h if installed
--------m-165758BX5858-----------------------
INT 16 U - Netroom PRENET - GET OLD INTERRUPT VECTORS
AX = 5758h
BX = 5858h
Return: CF clear
DX:BX -> saved copy of interrupt vector table
InstallCheck: call this function and compare BX against 5858h on return; if
it has changed, PRENET is installed
SeeAlso: AX=5758h/BX=5859h
Index: installation check;Netroom PRENET
--------m-165758BX5859-----------------------
INT 16 U - Netroom POSTNET - GET OLD INTERRUPT VECTORS
AX = 5758h
BX = 5859h
Return: CF clear
DX:BX -> saved copy of interrupt vector table
InstallCheck: call this function and compare BX against 5859h on return; if
it has changed, POSTNET is installed
SeeAlso: AX=5758h/BX=5858h
Index: installation check;Netroom POSTNET
----------166701-----------------------------
INT 16 - Doorway v2.30+ - INSTALLATION CHECK
AX = 6701h
Return: AX = 8080h if running under Doorway
Program: Doorway is a program by Marshall Dudley which allows most DOS programs
to run as a BBS door without modification
--------U-166969BX6968-----------------------
INT 16 - PC Tools v5.1+ BACKTALK - UNHOOK
AX = 6969h
BX = 6968h
Return: resident code unhooked, but not removed from memory
Index: uninstall;BACKTALK
--------U-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"
--------i-166A6B-----------------------------
INT 16 U - FastJuice - DISABLE/UNLOAD???
AX = 6A6Bh
Return: ???
Program: FastJuice is a resident battery-power monitor by SeaSide Software
SeeAlso: AX=7463h
Index: uninstall;FastJuice
--------G-166C63-----------------------------
INT 16 U - TMED v1.6a - INSTALLATION CHECK
AX = 6C63h ('lc')
Return: AX = 4C43h ('LC') if installed
Program: TMED is a freeware resident memory editor by Liang Chen
--------U-166D74-----------------------------
INT 16 - MTRTSR - INSTALLATION CHECK
AX = 6D74h ('mt')
Return: AX = 4D54h ('MT') if installed
Program: MTRTSR is a part of the shareware MTR package by Mechon Mamre which
permits searching the large corpus of classical Hebrew texts in the
package
SeeAlso: INT 10/AX=6D74h"MTRFONTS"
--------!---Section--------------------------
