HPAVC/HPAVC CD-ROM.iso/pc/INTER53C.ZIP/INTERRUP.L

Text File | 1997-01-12 | 302.1 KB | 8,429 lines

Interrupt List, part 12 of 16
Copyright (c) 1989,1990,1991,1992,1993,1994,1995,1996,1997 Ralf Brown
--------M-330000-----------------------------
INT 33 - MS MOUSE - RESET DRIVER AND READ STATUS
    AX = 0000h
Return: AX = status
        0000h hardware/driver not installed
        FFFFh hardware/driver installed
    BX = number of buttons
        0000h other than two
        0002h two buttons (many drivers)
        0003h Mouse Systems/Logitech three-button mouse
        FFFFh two buttons
Notes:    to use mouse on a Hercules-compatible monographics card in graphics
      mode, you must first set 0040h:0049h to 6 for page 0 or 5 for page 1,
      and then call this function.    Logitech drivers v5.01 and v6.00
      reportedly do not correctly use Hercules graphics in dual-monitor
      systems, while version 4.10 does.
    the Logitech mouse driver contains the signature string "LOGITECH"
      three bytes past the interrupt handler; many of the Logitech mouse
      utilities check for this signature.
    Logitech MouseWare v6.30 reportedly does not support CGA video modes
      if no CGA is present when it is started and the video board is
      later switched into CGA emulation
SeeAlso: AX=0011h,AX=0021h,AX=002Fh,INT 62/AX=007Ah,INT 74
--------M-330001-----------------------------
INT 33 - MS MOUSE v1.0+ - SHOW MOUSE CURSOR
    AX = 0001h
SeeAlso: AX=0002h,INT 16/AX=FFFEh,INT 62/AX=007Bh,INT 6F/AH=06h"F_TRACK_ON"
--------M-330002-----------------------------
INT 33 - MS MOUSE v1.0+ - HIDE MOUSE CURSOR
    AX = 0002h
Note:    multiple calls to hide the cursor will require multiple calls to
      function 01h to unhide it.
SeeAlso: AX=0001h,AX=0010h,INT 16/AX=FFFFh,INT 62/AX=007Bh
SeeAlso: INT 6F/AH=08h"F_TRACK_OFF"
--------M-330003-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN POSITION AND BUTTON STATUS
    AX = 0003h
Return: BX = button status (see #2423)
    CX = column
    DX = row
Note:    in text modes, all coordinates are specified as multiples of the cell
      size, typically 8x8 pixels
SeeAlso: AX=0004h,AX=000Bh,INT 2F/AX=D000h"ZWmous"

Bitfields for mouse button status:
Bit(s)    Description    (Table 2423)
 0    left button pressed if 1
 1    right button pressed if 1
 2    middle button pressed if 1 (Mouse Systems/Logitech/Genius)
--------M-330004-----------------------------
INT 33 - MS MOUSE v1.0+ - POSITION MOUSE CURSOR
    AX = 0004h
    CX = column
    DX = row
Note:    the row and column are truncated to the next lower multiple of the cell
      size (typically 8x8 in text modes); however, some versions of the
      Microsoft documentation incorrectly state that the coordinates are
      rounded
SeeAlso: AX=0003h,INT 62/AX=0081h,INT 6F/AH=10h"F_PUT_SPRITE"
--------M-330005-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN BUTTON PRESS DATA
    AX = 0005h
    BX = button number (see #2424)
Return: AX = button states (see #2423)
    BX = number of times specified button has been pressed since last call
    CX = column at time specified button was last pressed
    DX = row at time specified button was last pressed
Note:    at least for the Genius mouse driver, the number of button presses
      returned is limited to 7FFFh
SeeAlso: AX=0006h,INT 62/AX=007Ch

(Table 2424)
Values for mouse button number:
 0000h    left
 0001h    right
 0002h    middle (Mouse Systems/Logitech/Genius mouse)
--------M-330006-----------------------------
INT 33 - MS MOUSE v1.0+ - RETURN BUTTON RELEASE DATA
    AX = 0006h
    BX = button number (see #2424)
Return: AX = button states (see #2423)
    BX = number of times specified button has been released since last call
    CX = column at time specified button was last released
    DX = row at time specified button was last released
Note:    at least for the Genius mouse driver, the number of button releases
      returned is limited to 7FFFh
SeeAlso: AX=0005h,INT 62/AX=007Ch
--------M-330007-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE HORIZONTAL CURSOR RANGE
    AX = 0007h
    CX = minimum column
    DX = maximum column
Note:    in text modes, the minimum and maximum columns are truncated to the
      next lower multiple of the cell size, typically 8x8 pixels
SeeAlso: AX=0008h,AX=0010h,AX=0031h,INT 62/AX=0080h
SeeAlso: INT 6F/AH=0Ch"F_SET_LIMITS_X"
--------M-330008-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE VERTICAL CURSOR RANGE
    AX = 0008h
    CX = minimum row
    DX = maximum row
Note:    in text modes, the minimum and maximum rows are truncated to the
      next lower multiple of the cell size, typically 8x8 pixels
SeeAlso: AX=0007h,AX=0010h,AX=0031h,INT 62/AX=0080h
SeeAlso: INT 6F/AH=0Eh"F_SET_LIMITS_Y"
--------M-330009-----------------------------
INT 33 - MS MOUSE v3.0+ - DEFINE GRAPHICS CURSOR
    AX = 0009h
    BX = column of cursor hot spot in bitmap (-16 to 16)
    CX = row of cursor hot spot (-16 to 16)
    ES:DX -> mask bitmap (see #2425)
Notes:    in graphics modes, the screen contents around the current mouse cursor
      position are ANDed with the screen mask and then XORed with the
      cursor mask
    the Microsoft mouse driver v7.04 and v8.20 uses only BL and CL, so the
      hot spot row/column should be limited to -128..127
    Microsoft KnowledgeBase article Q19850 states that the high bit is
      right-most, but that statement is contradicted by all other available
      documentation
SeeAlso: AX=000Ah,AX=0012h,AX=002Ah,INT 62/AX=007Fh,INT 6F/AH=0Ah"F_DEF_MASKS"

Format of mouse mask bitmap:
Offset    Size    Description    (Table 2425)
 00h 16 WORDs    screen mask
 10h 16 WORDs    cursor mask
Note:    each word defines the sixteen pixels of a row, low bit rightmost
--------M-33000A-----------------------------
INT 33 - MS MOUSE v3.0+ - DEFINE TEXT CURSOR
    AX = 000Ah
    BX = hardware/software text cursor
        0000h software
        CX = screen mask
        DX = cursor mask
        0001h hardware
        CX = start scan line
        DX = end scan line
Note:    when the software cursor is selected, the character/attribute data at
      the current screen position is ANDed with the screen mask and then
      XORed with the cursor mask
SeeAlso: AX=0009h,INT 62/AX=007Eh
--------M-33000B-----------------------------
INT 33 - MS MOUSE v1.0+ - READ MOTION COUNTERS
    AX = 000Bh
Return: CX = number of mickeys mouse moved horizontally since last call
    DX = number of mickeys mouse moved vertically
Notes:    a mickey is the smallest increment the mouse can sense
    positive values indicate down/right
SeeAlso: AX=0003h,AX=001Bh,AX=0027h
--------M-33000C-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE INTERRUPT SUBROUTINE PARAMETERS
    AX = 000Ch
    CX = call mask (see #2426)
    ES:DX -> FAR routine (see #2427)
SeeAlso: AX=0018h

Bitfields for mouse call mask:
Bit(s)    Description    (Table 2426)
 0    call if mouse moves
 1    call if left button pressed
 2    call if left button released
 3    call if right button pressed
 4    call if right button released
 5    call if middle button pressed (Mouse Systems/Logitech/Genius mouse)
 6    call if middle button released (Mouse Systems/Logitech/Genius mouse)
 7-15    unused
Note:    some versions of the Microsoft documentation incorrectly state that CX
      bit 0 means call if mouse cursor moves

(Table 2427)
Values interrupt routine is called with:
    AX = condition mask (same bit assignments as call mask)
    BX = button state
    CX = cursor column
    DX = cursor row
    SI = horizontal mickey count
    DI = vertical mickey count
Notes:    some versions of the Microsoft documentation erroneously swap the
      meanings of SI and DI
    in text modes, the row and column will be reported as a multiple of
      the character cell size, typically 8x8 pixels
--------M-33000D-----------------------------
INT 33 - MS MOUSE v1.0+ - LIGHT PEN EMULATION ON
    AX = 000Dh
SeeAlso: AX=000Eh,INT 10/AH=04h
--------M-33000E-----------------------------
INT 33 - MS MOUSE v1.0+ - LIGHT PEN EMULATION OFF
    AX = 000Eh
SeeAlso: AX=000Dh
--------M-33000F-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE MICKEY/PIXEL RATIO
    AX = 000Fh
    CX = number of mickeys per 8 pixels horizontally (default 8)
    DX = number of mickeys per 8 pixels vertically (default 16)
SeeAlso: AX=0013h,AX=001Ah,INT 62/AX=0082h
--------M-330010-----------------------------
INT 33 - MS MOUSE v1.0+ - DEFINE SCREEN REGION FOR UPDATING
    AX = 0010h
    CX,DX = X,Y coordinates of upper left corner
    SI,DI = X,Y coordinates of lower right corner
Note:    mouse cursor is hidden in the specified region, and needs to be
      explicitly turned on again
SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"Genius MOUSE",AX=0031h
--------M-330010-----------------------------
INT 33 - Genius MOUSE - DEFINE SCREEN REGION FOR UPDATING
    AX = 0010h
    ES:DX -> update region list (see #2428)
Notes:    mouse cursor is hidden in the specified region, and needs to be
      explicitly turned on again
    this version of the call is described in an August 1988 version of the
      Genius Mouse programmer's reference; it has been changed to conform
      to the Microsoft version shown above by version 9.06 (and possibly
      earlier versions)
SeeAlso: AX=0001h,AX=0002h,AX=0007h,AX=0010h"MS MOUSE"

Format of Genius Mouse update region list:
Offset    Size    Description    (Table 2428)
 00h    WORD    left-most column
 02h    WORD    top-most row
 04h    WORD    right-most column
 06h    WORD    bottom-most row
--------M-330011-----------------------------
INT 33 - Genius Mouse 9.06 - GET NUMBER OF BUTTONS
    AX = 0011h
Return: AX = FFFFh
    BX = number of buttons
SeeAlso: AX=0000h
--------M-330012-----------------------------
INT 33 - MS MOUSE - SET LARGE GRAPHICS CURSOR BLOCK
    AX = 0012h
    BH = cursor width in words
    CH = rows in cursor
    BL = horizontal hot spot (-16 to 16)
    CL = vertical hot spot (-16 to 16)
    ES:DX -> bit map of screen and cursor maps
Return: AX = FFFFh if successful
SeeAlso: AX=0009h,AX=002Ah,AX=0035h
--------M-330013-----------------------------
INT 33 - MS MOUSE v5.0+ - DEFINE DOUBLE-SPEED THRESHOLD
    AX = 0013h
    DX = threshold speed in mickeys/second, 0000h = default of 64/second
Note:    if speed exceeds threshold, the cursor's on-screen motion is doubled
SeeAlso: AX=000Fh,AX=001Bh,AX=002Ch
--------M-330014-----------------------------
INT 33 - MS MOUSE v3.0+ - EXCHANGE INTERRUPT SUBROUTINES
    AX = 0014h
    CX = call mask (see #2426)
    ES:DX -> FAR routine
Return: CX = call mask of previous interrupt routine
    ES:DX = FAR address of previous interrupt routine
SeeAlso: AX=000Ch,AX=0018h
--------M-330015-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN DRIVER STORAGE REQUIREMENTS
    AX = 0015h
Return: BX = size of buffer needed to store driver state
SeeAlso: AX=0016h,AX=0017h,AX=0042h
--------M-330016-----------------------------
INT 33 - MS MOUSE v6.0+ - SAVE DRIVER STATE
    AX = 0016h
    BX = size of buffer (see AX=0015h)
    ES:DX -> buffer for driver state
Note:    although not documented (since the Microsoft driver does not use it),
      many drivers appear to require BX on input
SeeAlso: AX=0015h,AX=0017h
--------M-330017-----------------------------
INT 33 - MS MOUSE v6.0+ - RESTORE DRIVER STATE
    AX = 0017h
    BX = size of buffer (see AX=0015h)
    ES:DX -> buffer containing saved state
Notes:    although not documented (since the Microsoft driver does not use it),
      many drivers appear to require BX on input
    some mouse drivers range-check the values in the saved state based on
      the current video mode; thus, the video mode should be restored
      before the mouse driver's state is restored
SeeAlso: AX=0015h,AX=0016h
--------M-330018-----------------------------
INT 33 - MS MOUSE v6.0+ - SET ALTERNATE MOUSE USER HANDLER
    AX = 0018h
    CX = call mask (see #2429)
    ES:DX -> FAR routine to be invoked on mouse events (see #2430)
Return: AX = status
        0018h if successful
        FFFFh on error
Notes:    up to three handlers can be defined by separate calls to this function,
      each with a different combination of shift states in the call mask;
      calling this function again with a call mask of 0000h undefines the
      specified handler (official documentation); specifying the same
      call mask and an address of 0000h:0000h undefines the handler (real
      life)
    some versions of the documentation erroneously reverse the order of
      the bits in the call mask
SeeAlso: AX=000Ch,AX=0014h,AX=0019h

Bitfields for mouse call mask:
Bit(s)    Description    (Table 2429)
 0    call if mouse moves
 1    call if left button pressed
 2    call if left button released
 3    call if right button pressed
 4    call if right button released
 5    call if shift button pressed during event
 6    call if ctrl key pressed during event
 7    call if alt key pressed during event
Note:    at least one of 5-7 must be set

(Table 2430)
Values user handler is called with:
    AX = condition mask (same bit assignments as call mask)
    BX = button state
    CX = cursor column
    DX = cursor row
    SI = horizontal mickey count
    DI = vertical mickey count
Return: registers preserved
Note:    in text modes, the row and column will be reported as a multiple of
      the cell size, typically 8x8 pixels
--------M-330019-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN USER ALTERNATE INTERRUPT VECTOR
    AX = 0019h
    CX = call mask (see #2429)
Return: BX:DX = user interrupt vector
    CX = call mask (0000h if not found)
Note:    attempts to find a user event handler (defined by function 18h)
      whose call mask matches CX
SeeAlso: AX=0018h
--------M-33001A-----------------------------
INT 33 - MS MOUSE v6.0+ - SET MOUSE SENSITIVITY
    AX = 001Ah
    BX = horizontal speed \
    CX = vertical speed   / (see AX=000Fh)
    DX = double speed threshold (see AX=0013h)
SeeAlso: AX=0013h,AX=001Bh,INT 62/AX=0082h
--------M-33001B-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN MOUSE SENSITIVITY
    AX = 001Bh
Return: BX = horizontal speed
    CX = vertical speed
    DX = double speed threshold
SeeAlso: AX=000Bh,AX=001Ah
--------M-33001C-----------------------------
INT 33 - MS MOUSE v6.0+ - SET INTERRUPT RATE
    AX = 001Ch
    BX = rate (see #2431)
Notes:    only available on InPort mouse
    values greater than 4 may cause unpredictable driver behavior

(Table 2431)
Values for mouse interrupt rate:
 00h    no interrupts allowed
 01h    30 per second
 02h    50 per second
 03h    100 per second
 04h    200 per second
--------M-33001D-----------------------------
INT 33 - MS MOUSE v6.0+ - DEFINE DISPLAY PAGE NUMBER
    AX = 001Dh
    BX = display page number
Note:    the cursor will be displayed on the specified page
SeeAlso: AX=001Eh
--------M-33001E-----------------------------
INT 33 - MS MOUSE v6.0+ - RETURN DISPLAY PAGE NUMBER
    AX = 001Eh
Return: BX = display page number
SeeAlso: AX=001Dh
--------M-33001F-----------------------------
INT 33 - MS MOUSE v6.0+ - DISABLE MOUSE DRIVER
    AX = 001Fh
Return: AX = status
        001Fh successful
        ES:BX = INT 33 vector before mouse driver was first installed
        FFFFh unsuccessful
Notes:    restores vectors for INT 10 and INT 71 (8086) or INT 74 (286/386)
    if you restore INT 33 to ES:BX, driver will be completely disabled
    many drivers return AX=001Fh even though the driver has been disabled
SeeAlso: AX=0020h
--------M-330020-----------------------------
INT 33 - MS MOUSE v6.0+ - ENABLE MOUSE DRIVER
    AX = 0020h
Return: AX = status
        0020h successful
        FFFFh unsuccessful
Notes:    restores vectors for INT 10h and INT 71h (8086) or INT 74h (286/386)
      which were removed by function 1Fh
    Microsoft's documentation states that no value is returned
SeeAlso: AX=001Fh
--------M-330021-----------------------------
INT 33 - MS MOUSE v6.0+ - SOFTWARE RESET
    AX = 0021h
Return: AX = status
        FFFFh if mouse driver installed
        BX = number of buttons (FFFFh = two buttons)
        0021h if mouse driver not installed
Note:    this call is identical to funtion 00h, but does not reset the mouse
SeeAlso: AX=0000h
--------M-330022-----------------------------
INT 33 - MS MOUSE v6.0+ - SET LANGUAGE FOR MESSAGES
    AX = 0022h
    BX = language (see #2432)
Note:    only available on international versions of the driver; US versions
      ignore this call
SeeAlso: AX=0023h

(Table 2432)
Values for mouse driver language:
 00h    English
 01h    French
 02h    Dutch
 03h    German
 04h    Swedish
 05h    Finnish
 06h    Spanish
 07h    Portugese
 08h    Italian
--------M-330023-----------------------------
INT 33 - MS MOUSE v6.0+ - GET LANGUAGE FOR MESSAGES
    AX = 0023h
Return: BX = language (see #2432)
Note:    the US version of the driver always returns zero
SeeAlso: AX=0022h
--------M-330024-----------------------------
INT 33 - MS MOUSE v6.26+ - GET SOFTWARE VERSION, MOUSE TYPE, AND IRQ NUMBER
    AX = 0024h
Return: AX = FFFFh on error
    otherwise,
        BH = major version
        BL = minor version
        CH = type (1=bus, 2=serial, 3=InPort, 4=PS/2, 5=HP)
        CL = interrupt (0=PS/2, 2=IRQ2, 3=IRQ3,...,7=IRQ7,...,0Fh=IRQ15)
SeeAlso: AX=004Dh,AX=006Dh
--------M-330025-----------------------------
INT 33 - MS MOUSE v6.26+ - GET GENERAL DRIVER INFORMATION
    AX = 0025h
Return: AX = general information (see #2433)
    BX = cursor lock flag for OS/2 to prevent reentrancy problems
    CX = mouse code active flag (for OS/2)
    DX = mouse driver busy flag (for OS/2)

Bitfields for general mouse driver information:
Bit(s)    Description    (Table 2433)
 15    driver loaded as device driver rather than TSR
 14    driver is newer integrated type
 13,12    current cursor type
    00 software text cursor
    01 hardware text cursor (CRT Controller's cursor)
    1X graphics cursor
 11-8    interrupt rate (see #2431)
 7-0    count of currently-active Mouse Display Drivers (MDD), the newer
      integrated driver type
--------M-330026-----------------------------
INT 33 - MS MOUSE v6.26+ - GET MAXIMUM VIRTUAL COORDINATES
    AX = 0026h
Return: BX = mouse-disabled flag (0000h mouse enabled, nonzero disabled)
    CX = maximum virtual X (for current video mode)
    DX = maximum virtual Y
Note:    for driver versions before 7.05, this call returns the currently-set
      maximum coordinates; v7.05+ returns the absolute maximum coordinates
SeeAlso: AX=0031h
--------M-330026-----------------------------
INT 33 - Genius Mouse 9.06 - ???
    AX = 0026h
Return: CX = 0204h if CX was 0105h on entry, else unchanged
--------M-330027-----------------------------
INT 33 - MS MOUSE v7.01+ - GET SCREEN/CURSOR MASKS AND MICKEY COUNTS
    AX = 0027h
Return: AX = screen-mask value (or hardware cursor scan-line start for v7.02+)
    BX = cursor-mask value (or hardware cursor scan-line stop for v7.02+)
    CX = horizontal mickeys moved since last call
    DX = vertical mickeys moved since last call
SeeAlso: AX=000Bh
--------M-330028-----------------------------
INT 33 - MS MOUSE v7.0+ - SET VIDEO MODE
    AX = 0028h
    CX = new video mode (call is NOP if 0000h)
    DH = Y font size (00h = default)
    DL = X font size (00h = default)
Return: CL = status (00h = successful)
Notes:    DX is ignored unless the selected video mode supports font size control
    when CX=0000h, an internal flag that had been set by a previous call
      is cleared; this is required before a mouse reset
SeeAlso: AX=0029h,INT 10/AH=00h
--------M-330029-----------------------------
INT 33 - MS MOUSE v7.0+ - ENUMERATE VIDEO MODES
    AX = 0029h
    CX = previous video mode
        0000h get first supported video mode
        other get next supported mode after mode CX
Return: CX = first/next video mode (0000h = no more video modes)
    DS:DX -> description of video mode or 0000h:0000h if none
Notes:    the enumerated video modes may be in any order and may repeat
    the description string (if available) is terminated by '$' followed by
      a NUL byte
SeeAlso: AX=0028h
--------M-33002A-----------------------------
INT 33 - MS MOUSE v7.02+ - GET CURSOR HOT SPOT
    AX = 002Ah
Return: AX = internal counter controlling cursor visibility
    BX = cursor hot spot column
    CX = cursor hot spot row
    DX = mouse type (see #2434)
Note:    the hot spot location is relative to the upper left corner of the
      cursor block and may range from -128 to +127 both horizontally and
      vertically
SeeAlso: AX=0009h,AX=0012h,AX=0035h

(Table 2434)
Values for mouse type:
 00h    none
 01h    bus
 02h    serial
 03h    InPort
 04h    IBM
 05h    Hewlett-Packard
--------M-33002B-----------------------------
INT 33 - MS MOUSE v7.0+ - LOAD ACCELERATION PROFILES
    AX = 002Bh
    BX = active acceleration profile
        0001h-0004h or FFFFh to restore default curves
    ES:SI -> buffer containing acceleration profile data (see #2435)
Return: AX = success flag
SeeAlso: AX=002Ch,AX=002Dh,AX=0033h

Format of acceleration profile data:
Offset    Size    Description    (Table 2435)
 00h    BYTE    length of acceleration profile 1
 01h    BYTE    length of acceleration profile 2
 02h    BYTE    length of acceleration profile 3
 03h    BYTE    length of acceleration profile 4
 04h 32 BYTEs    threshold speeds for acceleration profile 1
 24h 32 BYTEs    threshold speeds for acceleration profile 2
 44h 32 BYTEs    threshold speeds for acceleration profile 3
 64h 32 BYTEs    threshold speeds for acceleration profile 4
 84h 32 BYTEs    speedup factor for acceleration profile 1
        (10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 A4h 32 BYTEs    speedup factor for acceleration profile 2
        (10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 C4h 32 BYTEs    speedup factor for acceleration profile 3
        (10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
 E4h 32 BYTEs    speedup factor for acceleration profile 4
        (10h = 1.0, 14h = 1.25, 20h = 2.0, etc)
104h 16 BYTEs    name of acceleration profile 1 (blank-padded)
114h 16 BYTEs    name of acceleration profile 2 (blank-padded)
124h 16 BYTEs    name of acceleration profile 3 (blank-padded)
134h 16 BYTEs    name of acceleration profile 4 (blank-padded)
Note:    unused bytes in the threshold speed fields are filled with 7Fh and
      unused bytes in the speedup factor fields are filled with 10h
--------M-33002C-----------------------------
INT 33 - MS MOUSE v7.0+ - GET ACCELERATION PROFILES
    AX = 002Ch
Return: AX = status (0000h success)
    BX = currently-active acceleration profile
    ES:SI -> acceleration profile data (see #2435)
SeeAlso: AX=002Bh,AX=002Dh,AX=0033h
--------M-33002D-----------------------------
INT 33 - MS MOUSE v7.0+ - SELECT ACCELERATION PROFILE
    AX = 002Dh
    BX = acceleration level
        0001h-0004h to set profile, or FFFFh to get current profile
Return: AX = status
        0000h successful
        ES:SI -> 16-byte blank-padded name of acceleration profile
        FFFEh invalid acceleration curve number
        ES:SI destroyed
    BX = active acceleration curve number
SeeAlso: AX=0013h,AX=002Bh,AX=002Ch,AX=002Eh
--------M-33002E-----------------------------
INT 33 - MS MOUSE v8.10+ - SET ACCELERATION PROFILE NAMES
    AX = 002Eh
    BL = flag (if nonzero, fill ES:SI buffer with default names on return)
    ES:SI -> 64-byte buffer containing profile names (16 bytes per name)
Return: AX = status (0000h success)
        FFFEh error for ATI Mouse driver
    ES:SI buffer filled with default names if BL nonzero on entry
Notes:    not supported by Logitech driver v6.10
    supported by ATI Mouse driver v7.04
SeeAlso: AX=002Ch,AX=002Dh,AX=012Eh,AX=022Eh
--------M-33002F-----------------------------
INT 33 - MS MOUSE v7.02+ - MOUSE HARDWARE RESET
    AX = 002Fh
Return: AX = status
Note:    invoked by mouse driver v8.20 on being called with INT 2F/AX=530Bh
SeeAlso: INT 2F/AH=53h
--------M-330030-----------------------------
INT 33 - MS MOUSE v7.04+ - GET/SET BallPoint INFORMATION
    AX = 0030h
    CX = command
        0000h get status of BallPoint device
        other set rotation angle and masks
        BX = rotation angle (-32768 to 32767 degrees)
        CH = primary button mask
        CL = secondary button mask
Return: AX = button status (FFFFh if no BallPoint) (see #2436)
    BX = rotation angle (0-360 degrees)
    CH = primary button mask
    CL = secondary button mask
Note:    not supported by the ATI Mouse driver which calls itself v7.04

Bitfields for BallPoint mouse button status:
Bit(s)    Description    (Table 2436)
 5    button 1
 4    button 2
 3    button 3
 2    button 4
 other    zero
--------M-330031-----------------------------
INT 33 - MS MOUSE v7.05+ - GET CURRENT MINIMUM/MAXIMUM VIRTUAL COORDINATES
    AX = 0031h
Return: AX = virtual X minimum
    BX = virtual Y minimum
    CX = virtual X maximum
    DX = virtual Y maximum
Note:    the minimum and maximum values are those set by AX=0007h and AX=0008h;
      the default is minimum = 0 and maximum = absolute maximum
      (see AX=0026h)
SeeAlso: AX=0007h,AX=0008h,AX=0010h,AX=0026h
--------M-330032-----------------------------
INT 33 - MS MOUSE v7.05+ - GET ACTIVE ADVANCED FUNCTIONS
    AX = 0032h
Return: AX = active function flags (FFFFh for v8.10)
        bit 15: function 0025h supported
        bit 14: function 0026h supported
        ...
        bit 0:  function 0034h supported
    BX = ??? (0000h) officially unused
    CX = ??? (E000h) officially unused
    DX = ??? (0000h) officially unused
Note:    the Italian version of MS MOUSE v8.20 reportedly indicates that
      functions 0033h and 0034h are not supported even though they are
--------M-330033-----------------------------
INT 33 - MS MOUSE v7.05+ - GET SWITCH SETTINGS AND ACCELERATION PROFILE DATA
    AX = 0033h
    CX = size of buffer
        0000h get required buffer size
        Return: AX = 0000h
            CX = required size (0154h for Logitech v6.10, 0159h
                for MS v8.10-8.20)
        other
        ES:DX -> buffer of CX bytes for mouse settings
        Return: AX = 0000h
            CX = number of bytes returned
            ES:DX buffer filled (see #2437)
SeeAlso: AX=002Bh

Format of mouse settings data buffer:
Offset    Size    Description    (Table 2437)
 00h    BYTE    mouse type
 01h    BYTE    current language
 02h    BYTE    horizontal sensitivity (00h-64h)
 03h    BYTE    vertical sensitivity (00h-64h)
 04h    BYTE    double-speed threshold (00h-64h)
 05h    BYTE    ballistic curve (01h-04h)
 06h    BYTE    interrupt rate (01h-04h)
 07h    BYTE    cursor override mask
 08h    BYTE    laptop adjustment
 09h    BYTE    memory type (00h-02h)
 0Ah    BYTE    SuperVGA support (00h,01h)
 0Bh    BYTE    rotation angle
 0Ch    BYTE    ???
 0Dh    BYTE    primary button (01h-04h)
 0Eh    BYTE    secondary button (01h-04h)
 0Fh    BYTE    click lock enabled (00h,01h)
 10h 324 BYTEs    acceleration profile data (see #2435)
154h  5 BYTEs    ??? (Microsoft driver, but not Logitech)
--------M-330034-----------------------------
INT 33 - MS MOUSE v8.0+ - GET INITIALIZATION FILE
    AX = 0034h
Return: AX = status (0000h successful)
    ES:DX -> ASCIZ initialization (.INI) file name
--------M-330035-----------------------------
INT 33 - MS MOUSE v8.10+ - LCD SCREEN LARGE POINTER SUPPORT
    AX = 0035h
    BX = function
        FFFFh get current settings
        Return: AX = 0000h
            BH = style (see #2438)
            BL = size (see #2439)
            CH = threshold (00h-64h)
            CL = active flag (00h disabled, 01h enabled)
            DX = delay
        other
        BH = pointer style (see #2438)
        BL = size (see #2439)
        CH = threshold (00h-64h)
        CL = active flag (00h disable size change, 01h enable)
        DX = delay (0000h-0064h)
        Return: AX = 0000h
Note:    not supported by Logitech driver v6.10
SeeAlso: AX=0012h,AX=002Ah

(Table 2438)
Values for pointer style:
 00h    normal
 01h    reverse
 02h    transparent
SeeAlso: #2439

(Table 2439)
Values for pointer size:
 00h    small ("1")
 01h    medium ("1.5")
 02h    large ("2")
SeeAlso: #2438
--------M-330042-----------------------------
INT 33 - PCMOUSE - GET MSMOUSE STORAGE REQUIREMENTS
    AX = 0042h
Return: AX = status
        0000h MSMOUSE not installed
        0042h functions 42h, 50h, and 52h not supported
        FFFFh successful
        BX = buffer size in bytes for functions 50h and 52h
Note:    this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0015h,AX=0050h,AX=0052h
--------M-330043-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - CONFIGURE MOUSE???
    AX = 0043h
    CX:BX -> configuration buffer (see #2440)
    DL = ???
Return: ???
Notes:    also calls routines for INT 33/AX=0053h and INT 33/AX=004Fh
    this function is also supported by the Genius Mouse 9.06 driver

Format of Mouse Systems configuration buffer:
Offset    Size    Description    (Table 2440)
 00h    WORD    I/O port address
 02h    BYTE    ???
 03h    BYTE    interrupt number
 04h    BYTE    interrupt mask for interrupt controller
 05h  5 BYTEs    ???
--------M-330044CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - TOGGLE IGNORE ACCELERATION CMDS
    AX = 0044h
    CX = CDEFh
Return: AX = new state of "Ignore Application Acceleration Commands" flag
Note:    this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0045h
--------M-330045CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - TOGGLE RESOLUTION DOUBLING
    AX = 0045h
    CX = CDEFh
Return: AX = new state of resolution doubling flag
Note:    this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0044h
--------M-330047-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET BUTTON ASSIGNMENTS
    AX = 0047h
    ES:BX -> button assignments (3 bytes, combinations of "L", "M", "R")
Return: ???
Note:    also supported by Genius Mouse 9.06 driver
SeeAlso: AX=0067h
--------M-330048BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET ???
    AX = 0048h
    BX = CDEFh
Return: CX = ???
    BH = ???
    BL = ??? (if 50h, driver is using PS/2 pointing device BIOS interface)
Note:    also supported by Genius Mouse 9.06 driver
--------M-33004B-----------------------------
INT 33 - LCS/Telegraphics MOUSE DRIVERS - INSTALLATION CHECK / GET VERSION
    AX = 004Bh
Return: ES:DI -> ASCIZ signature/description string if installed (see #2441)

(Table 2441)
Values for LCS/Telegraphics mouse driver OEM signature/description string:
 "Primax Generic;Universal Mouse Driver;IMOUSE;v8.20i"
 "Synaptics;TouchPad Driver;SYNTOUCH;v2.26"
 "Z-NIX;BUS,AUX,Serial 3-byte and 5-byte Mouse Driver;ZMOUSE;v7.04d"
Note:    the string consists of OEM, driver description, driver name, and
      version number
--------M-33004CBXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET ??? FLAG
    AX = 004Ch
    BX = CDEFh
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=006Ch
--------M-33004D-----------------------------
INT 33 - MS MOUSE - RETURN POINTER TO COPYRIGHT STRING
    AX = 004Dh
Return: ES:DI -> copyright message "*** This is Copyright 1983 Microsoft" or
        "Copyright 19XX...."
Notes:    also supported by Logitech, Kraft, Genius Mouse, and Mouse Systems
      mouse drivers
    in the Genius Mouse 9.06 driver, the ASCIZ signature "KYE" immediately
      follows the above copyright message (KYE Corp. manufactures the
      driver)
SeeAlso: AX=0024h,AX=006Dh,AX=0666h
--------M-33004F-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ENABLE MOUSE
    AX = 004Fh
Return: nothing
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=0043h,AX=0053h
--------M-330050-----------------------------
INT 33 - PCMOUSE - SAVE MSMOUSE STATE
    AX = 0050h
    BX = buffer size (ignored by some driver versions)
    ES:DX -> buffer
Return: AX = FFFFh if successful
Notes:    the buffer must be large enough to hold the entire state, or following
      data will be overwritten by state data in versions which ignore BX;
      use INT 33/AX=0042h to get the required size
    this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=0042h,AX=0052h
--------M-330052-----------------------------
INT 33 - PCMOUSE - RESTORE MSMOUSE STATE
    AX = 0052h
    BX = buffer size (ignored by some driver versions)
    ES:DX -> buffer
Return: AX = FFFFh if successful
Note:    also supported by Genius Mouse 9.06 driver
SeeAlso: AX=0050h
--------M-330053-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - DISABLE MOUSE
    AX = 0053h
Return: nothing
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=0043h,AX=004Fh
--------M-330054CXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SELECT ULTRARES ACCELERATION LEVEL
    AX = 0054h
    CX = CDEFh
    BX = new acceleration level (0-9)
Return: ???
Note:    this function is also supported by the Genius Mouse 9.06 driver
SeeAlso: AX=005Ah
--------M-330055-----------------------------
INT 33 - Kraft Mouse - GET ???
    AX = 0055h
Return: CX = ???
    DX = ???
    ES = ???
--------M-330058-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
    AX = 0058h
Return: AX = CS of driver
    CX:BX = original INT 33 vector
    DX = ???
Note:    this function is also supported by the Genius Mouse 9.06 driver
--------M-33005A-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - SET ULTRARES ACCELERATIONS
    AX = 005Ah
    CX = number of WORDs to copy (max 0014h, but not range-checked)
    DX:SI -> buffer containing thresholds??? (CX words)
    DX:BX -> buffer containing acceleration values???
        (9*14h words, only first CX of each 14h used)
    ???
Return: CF clear
    ???
Note:    this function is also supported by Genius Mouse 9.06
SeeAlso: AX=0054h
--------M-330061BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
    AX = 0061h
    BX = CDEFh
Return: CX = ???
Note:    also supported by Genius Mouse 9.06
--------M-330067-----------------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET MOUSE BUTTONS???
    AX = 0067h
Return: BL = number of buttons???
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=0047h
--------M-33006A-----------------------------
INT 33 U - ATI Mouse - INSTALLATION CHECK
    AX = 006Ah
Return: AL = AAh
    AH = ???
    BH = ???
    BL = ???
    CL = ???
    CH = ???
Program: ATI's MOUSE.COM and MOUSE.SYS are drivers for the mouse port found on
      some of ATI's video adapters
SeeAlso: AX=006Dh
--------M-33006C-----------------------------
INT 33 U - TRUEDOX Mouse driver v4.01 - GET/SET HARDWARE PARAMETERS
    AX = 006Ch
    BX = new IRQ (0003h or 0004h), or 0000h to get current values only
    CL = new IRQmask (sent to 8259)
    DX = new base I/O port
Return: BX = current IRQ
    DX = light pen state???
Note:    this is the mouse driver for the Dell Dimension series of computers, by
      TRUEDOX Technology Corporation
SeeAlso: AX=00A1h,AX=0666h
--------M-33006CBXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - CLEAR ??? FLAG
    AX = 006Ch
    BX = CDEFh
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=004Ch
--------M-33006D-----------------------------
INT 33 - MS MOUSE - GET VERSION STRING
    AX = 006Dh
Return: ES:DI -> Microsoft version number of resident driver (see #2442)
Notes:    also supported by Logitech, Mouse Systems, Kraft, and Genius mouse
      drivers
    the Mouse Systems 7.01 and Genius Mouse 9.06 drivers report their
      Microsoft version as 7.00 even though they do not support any of the
      functions from 0025h through 002Dh supported by the MS 7.00 driver
      (the Genius Mouse driver supports function 0026h, but it differs
      from the Microsoft function)
    the TRUEDOX 4.01 driver reports its version as 6.26 through this call,
      but as 6.24 through AX=0024h
SeeAlso: AX=0024h,AX=004Dh,AX=006Ah,AX=266Ch

Format of Microsoft version number:
Offset    Size    Description    (Table 2442)
 00h    BYTE    major version
 01h    BYTE    minor version (BCD)
--------M-330070BXABCD-----------------------
INT 33 - Mouse Systems MOUSE DRIVER - POPUP.COM - INSTALLATION CHECK
    AX = 0070h
    BX = ABCDh
Return: AX = ABCDh if installed
        BX:CX -> data structure (see #2443)
Notes:    this function is also supported by the Genius Mouse 9.06 driver
    the v7.01 POPUP.COM and menu drivers also check for the signature
      CDh ABh BAh DCh at offset -2Ch from the interrupt handler
    if POPUP is not loaded, the returned data structure contains the proper
      signature at offset 00h, but not at offset 08h

Format of Mouse Systems POPUP.COM data structure:
Offset    Size    Description    (Table 2443)
 00h    WORD    signature ABCDh
 02h    DWORD    pointer to info structure??? (see #2444)
 06h  2 BYTEs    ???
 08h    WORD    signature ABCDh

Format of Mouse Systems POPUP.COM info structure:
Offset    Size    Description    (Table 2444)
 00h    WORD    driver version
 02h  8 BYTEs    ???
 0Ah    WORD    segment of ???
    ???
--------M-330072BXABCD-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - ???
    AX = 0072h
    BX = ABCDh
Return: ???
Note:    this function is also supported by the Genius Mouse 9.06 driver
--------M-330073BXCDEF-----------------------
INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - GET BUTTON ASSIGNMENTS
    AX = 0073h
    BX = CDEFh
    ES:DX -> 3-byte buffer for button assignments
Return: CX = number of buttons???
    ES:DX buffer filled (default is "LMR")
Note:    also supported by Genius Mouse 9.06
SeeAlso: AX=0067h
--------M-3300A0-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET HARDWARE PC MODE (3 button)
    AX = 00A0h
Return: nothing
Note:    this function is only available if the mouse mode is switchable
      through the power pins
SeeAlso: AX=006Ch"TRUEDOX",AX=00A1h"TRUEDOX"
--------M-3300A1-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET HARDWARE MS MODE (2 button)
    AX = 00A1h
Return: nothing
Notes:    this function is only available if the mouse mode is switchable
      through the power pins
    this is the mouse driver for the Dell Dimension series of computers, by
      TRUEDOX Technology Corporation
SeeAlso: AX=006Ch"TRUEDOX",AX=00A0h"TRUEDOX",AX=00A6h,AX=0666h
--------M-3300A6-----------------------------
INT 33 U - TRUEDOX Mouse driver - SET RESOLUTION
    AX = 00A6h
    BX = new software resolution
        0001h 50-200 dpi
        0002h 200-400 dpi
        0003h 400-800 dpi
Note:    this is the mouse driver for the Dell Dimension series of computers, by
      TRUEDOX Technology Corporation
SeeAlso: AX=00A0h,AX=00A1h,AX=0666h
--------M-3300B0-----------------------------
INT 33 U - LCS/Telegraphics MOUSE DRIVERS - ???
    AX = 00B0h
    ???
Return: ???
--------M-3300F0-----------------------------
INT 33 U - LCS/Telegraphics MOUSE DRIVERS - ???
    AX = 00F0h
    ???
Return: ???
--------M-3300F1-----------------------------
INT 33 U - LCS/Telegraphics MOUSE DRIVERS - ???
    AX = 00F1h
    ???
Return: ???
--------M-3300F2-----------------------------
INT 33 U - LCS/Telegraphics MOUSE DRIVERS - ???
    AX = 00F2h
    ???
Return: ???
--------M-3300F3-----------------------------
INT 33 U - LCS/Telegraphics MOUSE DRIVERS - ???
    AX = 00F3h
    ???
Return: ???
--------M-330100CX4752-----------------------
INT 33 - GRTMOUSE v1.00+ - INSTALLATION CHECK
    AX = 0100h
    CX = 4752h ('GR')
    DX = 544Dh ('TM')
Return: AX = 474Dh ('GM') if installed
        CX = version number (CH = major, CL = minor)
Program: GRTMOUSE is a graphical-cursor driver for textmode by Tommer Leyvand
SeeAlso: AX=0101h,AX=0102h,AX=0103h,AX=0104h
--------M-330101-----------------------------
INT 33 - GRTMOUSE v1.00+ - SET MOUSE CURSOR SHAPE
    AX = 0101h
    DS:SI -> 16-byte cursor pattern
Return: CF clear if successful
SeeAlso: AX=0100h,AX=0102h
--------M-330102-----------------------------
INT 33 - GRTMOUSE v1.00+ - GET MOUSE CURSOR SHAPE
    AX = 0102h
    ES:DI -> 16-byte buffer for cursor pattern
SeeAlso: AX=0100h,AX=0101h
--------M-330103-----------------------------
INT 33 - GRTMOUSE v1.00+ - SET ACTIVE CHARACTERS
    AX = 0103h
    CH,CL,DH,DL = ASCII codes to be remapped to display mouse pointer
Note:    the default active characters are D0h,D1h,D6h,D8h; the active
     characters should be in the range C0h to DFh
SeeAlso: AX=0100h,AX=0104h
--------M-330104-----------------------------
INT 33 - GRTMOUSE v1.00+ - GET ACTIVE CHARACTERS
    AX = 0104h
Return: CH,CL,DH,DL = ASCII codes for the active characters
SeeAlso: AX=0100h,AX=0103h
--------M-33012E-----------------------------
INT 33 - MS MOUSE v8.10+ - ???
    AX = 012Eh
    BL = ???
Return: AX = 0000h (MS)
    AX = FFFFh (ATI Mouse v7.04)
Note:    not supported by Logitech driver v6.10
SeeAlso: AX=002Eh,AX=022Eh
--------M-33022E-----------------------------
INT 33 - MS MOUSE v8.10+ - ???
    AX = 022Eh
    BL = ???
Return: AX = 0000h (MS)
    AX = FFFFh (ATI Mouse v7.04)
Note:    not supported by Logitech driver v6.10
SeeAlso: AX=002Eh,AX=012Eh
--------M-330666-----------------------------
INT 33 U - TRUEDOX Mouse driver v4.01 - GET COPYRIGHT STRING
    AX = 0666h
Return: DX:AX -> ASCII "Copyright 1987-1992 TRUEDOX Technology Corporation"
Note:    this is the mouse driver for the Dell Dimension series of computers,
      by TRUEDOX Technology Corporation
SeeAlso: AX=004Dh,AX=00A6h,AX=0666h
--------M-33136C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 136Ch
    BX = ???
Return: AX = ???
    BX = ???
--------M-33146C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET/SET ???
    AX = 146Ch
    BL = function
        00h set ???
        BH = new value (zero/nonzero to clear/set)
        else get ???
        Return: ???
--------M-33156C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET SIGNATURE AND VERSION STRINGS
    AX = 156Ch
Return: ES:DI -> signature "LOGITECH MOUSE DRIVER"
    ES:SI -> version string, terminated with CRLF
--------M-33166C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 166Ch
    BL = ???
        00h ???
        01h ???
        other ???
        BH = new value of ???
        Return: AX = FFFFh
--------M-33176C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 176Ch
    ???
Return: ???
--------M-33186C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 186Ch
    ???
Return: ???
--------M-33196C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 196Ch
    ???
Return: ???
--------M-331A6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET ???
    AX = 1A6Ch
Return: AX = FFFFh
    BX = ???
    CX = ???
SeeAlso: AX=1B6Ch
--------M-331B6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - SET ???
    AX = 1B6Ch
    BX = new value for ??? (0000h-0003h)
Return: AX = FFFFh
SeeAlso: AX=1A6Ch
--------M-331C6C-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 1C6Ch
    BX = ???
        <42h ???
        =42h ???
        >42h ???
        ES:DI -> ???
        Return: AX = ???
--------M-331D6C-----------------------------
INT 33 - LOGITECH MOUSE - GET COMPASS PARAMETER
    AX = 1D6Ch
Return: BX = direction (0=north, 1=south, 2=east, 3=west)
SeeAlso: AX=1E6Ch
--------M-331E6C-----------------------------
INT 33 - LOGITECH MOUSE - SET COMPASS PARAMETER
    AX = 1E6Ch
    BX = direction (0=north, 1=south, 2=east, 3=west)
SeeAlso: AX=1D6Ch
--------M-331F6C-----------------------------
INT 33 - LOGITECH MOUSE - GET BALLISTICS INFORMATION
    AX = 1F6Ch
Return: BX = 0=off, 1=on
    CX = 1=low, 2=high
SeeAlso: AX=002Ch,AX=236Ch
--------M-33206C-----------------------------
INT 33 - LOGITECH MOUSE - SET LEFT OR RIGHT PARAMETER
    AX = 206Ch
    BX = parameter (00h = right, FFh = left)
SeeAlso: AX=216Ch
--------M-33216C-----------------------------
INT 33 - LOGITECH MOUSE - GET LEFT OR RIGHT PARAMETER
    AX = 216Ch
Return: BX = parameter (00h = right, FFh = left)
SeeAlso: AX=206Ch
--------M-33226C-----------------------------
INT 33 - LOGITECH MOUSE - REMOVE DRIVER FROM MEMORY
    AX = 226Ch
Note:    this only frees memory; does not restore hooked interrupts
--------M-33236C-----------------------------
INT 33 - LOGITECH MOUSE - SET BALLISTICS INFORMATION
    AX = 236Ch
    BX = 0=off, 1=on
    CX = 1=low, 2=high
SeeAlso: AX=002Ch,AX=1F6Ch
--------M-33246C-----------------------------
INT 33 - LOGITECH MOUSE - GET PARAMETERS AND RESET SERIAL MOUSE
    AX = 246Ch
    ES:DX -> parameter table buffer (see #2445)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=0000h,AX=256Ch/BX=0000h,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h

Format of Logitech Mouse parameter table:
Offset    Size    Description    (Table 2445)
 00h    WORD    baud rate divided by 100  (serial mouse only)
 02h    WORD    emulation          (serial mouse only)
 04h    WORD    report rate          (serial mouse only)
 06h    WORD    firmware revision      (serial mouse only)
 08h    WORD    00h              (serial mouse only)
 0Ah    WORD    port              (serial mouse only)
 0Ch    WORD    physical buttons
 0Eh    WORD    logical buttons
--------M-33256CBX0000-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET BAUD RATE (SERIAL MOUSE ONLY)
    AX = 256Ch
    BX = 0000h
    CX = rate (0=1200, 1=2400, 2=4800, 3=9600)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0002h,AX=276Ch
--------M-33256CBX0001-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET EMULATION (SERIAL MOUSE ONLY)
    AX = 256Ch
    BX = 0001h
    CX = emulation type (see #2446)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0003h,AX=276Ch

(Table 2446)
Values for Logitech mouse emulation type:
 00h    5 byte packed binary
 01h    3 byte packed binary
 02h    hexadecimal
 03h    relative bit pad
 04h    not supported
 05h    MM Series
 06h    not supported
 07h    Microsoft
--------M-33256CBX0002-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET REPORT RATE (SERIAL MOUSE ONLY)
    AX = 256Ch
    BX = 0002h
    CX = rate (0=10, 1=20, 2=35, 3=50, 4=70, 5=100, 6=150)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0001h,AX=256Ch/BX=0003h,AX=276Ch
--------M-33256CBX0003-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE PORT (SERIAL MOUSE ONLY)
    AX = 256Ch
    BX = 0003h
    CX = port (1, 2)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=256Ch/BX=0000h,AX=256Ch/BX=0004h,AX=276Ch
--------M-33256CBX0004-----------------------
INT 33 - LOGITECH MOUSE - SET PARAMETERS - SET MOUSE LOGICAL BUTTONS
    AX = 256Ch
    BX = 0004h
    CX = buttons (2, 3)
Return: AX = FFFFh if driver installed for serial mouse
SeeAlso: AX=246Ch,AX=276Ch
--------M-33266C-----------------------------
INT 33 - LOGITECH MOUSE - GET VERSION???
    AX = 266Ch
Return: BX = 'SS'
    CH = '4'  major version number
    CL = '1'  minor version number
SeeAlso: AX=006Dh
--------M-33276C-----------------------------
INT 33 - LOGITECH MOUSE - ??? Tries MMSeries, Baud 2400
    AX = 276Ch
SeeAlso: AX=256Ch
--------M-333000-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - INSTALLATION CHECK
    AX = 3000h
Return: AX = FFFFh if installed
        BX = version number (BH = major, BL = minor)
Program: SMD is a programmer's library by Andy Hakim which provides a
      graphics-style mouse cursor in text mode.  PrecisePoint is an
      SMD-based TSR which replaces the block mouse cursor in text
      applications.
SeeAlso: AX=0000h,AX=3001h,AX=3003h
--------M-333001-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - ENABLE SMOOTH MOUSE
    AX = 3001h
Return: AX = status (0000h = disabled, 0001h = enabled)
Note:    SMD remains disabled if running under Desqview or in graphics mode
SeeAlso: AX=0001h,AX=0002h,AX=3002h
--------M-333002-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - DISABLE SMOOTH MOUSE
    AX = 3002h
Return: AX = status (0000h = disabled, 0001h = enabled)
SeeAlso: AX=0001h,AX=0002h,AX=3000h,AX=3001h
--------M-333003-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - GET INFORMATION
    AX = 3003h
    BL = data structure selector
        00h Primary Bitmap (used for 25 line mode) (see #2447)
        01h Secondary Bitmap (used for 43/50 line modes) (see #2447)
        02h Sacrifice Character Map (see #2448)
        03h Program Information (see #2449)
Return: ES:DX -> selected data structure
SeeAlso: AX=3000h

Format of Primary/Secondary Bitmap [SMD_BITMAP_STRUCT]:
Offset    Size    Description    (Table 2447)
 00h    BYTE    vertical size of bitmap (00h - 10h)
 01h    BYTE    horizontal size of bitmap (00h - 10h)
 02h    BYTE    vertical hotspot position (00h - 10h)
 03h    BYTE    horizontal hotspot position (00h - 10h)
 04h 16 WORDs    cursor bitmap data
 14h 16 WORDs    screen bitmap data

Format of Sacrifice Character Map [SMD_SMAP_STRUCT]:
Offset    Size    Description    (Table 2448)
 00h    BYTE    bytes are character values (00h-FFh) used in place of the
 01h    BYTE    actual character for the corresponding position on the screen
 02h    BYTE         +--------------+      occupied by part or all of the mouse
 03h    BYTE         | 0h | 1h | 2h |      cursor
 04h    BYTE         |----+----+----|
 05h    BYTE         | 3h | 4h | 5h |
 06h    BYTE         |----+----+----|
 07h    BYTE         | 6h | 7h | 8h |
 08h    BYTE         +--------------+

Format of Program Information [SMD_INFO_STRUCT]:
Offset    Size    Description    (Table 2449)
 00h    WORD    segment of old interrupt 33h handler
 02h    WORD    offset of old interrupt 33h handler
 04h    WORD    PSP of SMD
 06h    BYTE    ENABLE/DISABLE manual setting status
 07h    BYTE    ENABLE/DISABLE internal usage status
--------M-333004-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
    AX = 3004h
SeeAlso: AX=3000h
--------M-333005-----------------------------
INT 33 - Smooth Mouse Driver, PrecisePoint - RESERVED FUTURE EXPANSION
    AX = 3005h
SeeAlso: AX=3000h
--------M-334F00-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - GET ???
    AX = 4F00h
Return: AX = 004Fh if supported
    BX = ???
    ES:DI -> ???
SeeAlso: AX=4F01h
--------M-334F01-----------------------------
INT 33 - LOGITECH MOUSE v6.10+ - ???
    AX = 4F01h
    ES = ???
Return: AX = 004Fh if supported
    ES:DI -> ???
SeeAlso: AX=4F00h
--------M-336F00-----------------------------
INT 33 - Hewlett Packard - HP MOUSE DRIVER INSTALLATION CHECK
    AX = 6F00h
    BX <> 4850h
Return: BX = 4850h ('HP') if mouse driver written by Hewlett Packard
SeeAlso: INT 10/AX=6F00h,INT 14/AX=6F00h,INT 16/AX=6F00h,INT 17/AX=6F00h
--------M-338800-----------------------------
INT 33 U - InfoTrack IMOUSE.COM - UNHOOK MOUSE IRQ
    AX = 8800h
    BX <> FFFFh
Note:    the code is written to expect a subfunction number in AL, but only
      function 00h has been implemented
SeeAlso: AX=8800h/BX=FFFFh
--------M-338800BXFFFF-----------------------
INT 33 U - InfoTrack IMOUSE.COM - GET ACTIVE IRQ
    AX = 8800h
    BX = FFFFh
Return: BL = number of IRQ being used by the mouse
SeeAlso: AX=8800h
--------T-33FFE6-----------------------------
INT 33 - Switch-It v3.23 - GET ??? PROGRAM
    AX = FFE6h
    CX = length of buffer
    ES:DI -> buffer for program name
Return: ES:DI buffer filled
Program: Switch-It is a task switcher supporting up to 100 programs
      simultaneously by Better Software Technology, Inc.
--------T-33FFE7-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFE7h
Return: AX = ???
--------T-33FFE8-----------------------------
INT 33 - Switch-It v3.23 - ???
    AX = FFE8h
    CX = length of name including terminating NUL
    DS:SI -> ASCIZ program pathname
--------T-33FFE9-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFE9h
    BX = ???
--------T-33FFEA-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFEAh
    BL = ???
--------T-33FFEB-----------------------------
INT 33 - Switch-It v3.23 - SET ??? FLAG
    AX = FFEBh
--------T-33FFEC-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFECh
    BL = ???
--------T-33FFED-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFEDh
Return: AX = ??? (0001h)
    BX = ???
Program: Switch-It is a task switcher supporting up to 100 programs
      simultaneously by Better Software Technology, Inc.
--------T-33FFEE-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFEEh
Return: AX = ???
--------T-33FFEF-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFEFh
Return: BX:AX -> ???
--------T-33FFF0-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFF0h
    BL = ???
--------T-33FFF1-----------------------------
INT 33 - Switch-It v3.23 - GET CONFIGURATION FILE
    AX = FFF1h
Return: BX:AX -> ASCIZ pathname of configuration file
Program: Switch-It is a task switcher supporting up to 100 programs
      simultaneously by Better Software Technology, Inc.
--------T-33FFF2-----------------------------
INT 33 - Switch-It v3.23 - SET ??? FLAG
    AX = FFF2h
Return: AL = 01h
--------T-33FFF3-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFF3h
Return: AX = ???
--------T-33FFF4-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFF4h
    BX = ???
    CX = ???
--------T-33FFF5-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFF5h
Return: AX = ???
--------T-33FFF6-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFF6h
Return: AX = ???
--------T-33FFF7-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFF7h
    BX = index of ???
Return: AX = ???
--------T-33FFF8-----------------------------
INT 33 - Switch-It v3.23 - ???
    AX = FFF8h
    BX = ???
    CX = length of program name, including terminating NUL
    DS:SI -> ASCIZ program pathname
Return: ???
Program: Switch-It is a task switcher supporting up to 100 programs
      simultaneously by Better Software Technology, Inc.
--------T-33FFF9-----------------------------
INT 33 - Switch-It v3.23 - NOP
    AX = FFF9h
--------T-33FFFA-----------------------------
INT 33 - Switch-It v3.23 - SET ???
    AX = FFFAh
    BX = index of program
SeeAlso: AX=FFFBh,AX=FFFCh
--------T-33FFFB-----------------------------
INT 33 - Switch-It v3.23 - GET ???
    AX = FFFBh
    BX = index of program
Return: AX = ??? (0000h or 0001h)
SeeAlso: AX=FFFAh,AX=FFFCh
--------T-33FFFC-----------------------------
INT 33 - Switch-It v3.23 - CLEAR ???
    AX = FFFCh
    BX = index of program
SeeAlso: AX=FFFAh,AX=FFFCh
--------T-33FFFD-----------------------------
INT 33 - Switch-It v3.23 - GET MEMORY ADDRESSES???
    AX = FFFDh
Return: AX = first available segment???
    BX = paragraph of top of conventional memory
    DX = PSP segment of SI.EXE
--------T-33FFFE-----------------------------
INT 33 - Switch-It v3.23 - INSTALLATION CHECK
    AX = FFFEh
Return: BX = ???
    DX = 5349h ("SI")
--------T-33FFFF-----------------------------
INT 33 - Switch-It v3.23 - ???
    AX = FFFFh
    BX = ???
Program: Switch-It is a task switcher supporting up to 100 programs
      simultaneously by Better Software Technology, Inc.
--------r-34---------------------------------
INT 34 - FLOATING POINT EMULATION - OPCODE D8h
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of D8h
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 35,INT 3E
--------r-35---------------------------------
INT 35 - FLOATING POINT EMULATION - OPCODE D9h
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of D9h
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 34,INT 36
--------r-36---------------------------------
INT 36 - FLOATING POINT EMULATION - OPCODE DAh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DAh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 35,INT 37
--------r-37---------------------------------
INT 37 - FLOATING POINT EMULATION - OPCODE DBh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DBh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 36,INT 38
--------r-38---------------------------------
INT 38 - FLOATING POINT EMULATION - OPCODE DCh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DCh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 37,INT 39
--------O-38---------------------------------
INT 38 - PC-MOS/386 v3.0 - API
Note:    this API was been moved to INT D4h sometime between versions 3.0 and
      5.01; v3.0 supported at least functions 02h,04h,0703h,10h,11h, and
      12h
SeeAlso: INT D4/AH=02h,INT D4/AH=04h,INT D4/AH=07h,INT D4/AH=10h,INT D4/AH=11h
--------r-39---------------------------------
INT 39 - FLOATING POINT EMULATION - OPCODE DDh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DDh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 38,INT 3A
--------r-3A---------------------------------
INT 3A - FLOATING POINT EMULATION - OPCODE DEh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DEh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 39,INT 3B
--------r-3B---------------------------------
INT 3B - FLOATING POINT EMULATION - OPCODE DFh
Desc:    this interrupt is used to emulate floating-point instructions with
      an opcode of DFh
Note:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
SeeAlso: INT 3A,INT 3C
--------r-3C---------------------------------
INT 3C - FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE
Notes:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
    the generated code is  CD 3C xy mm ....
      where xy is a modified ESC instruction and mm is the modR/M byte.
      The xy byte appears to be encoded as
        s s 0 1 1 x x x      or    s s 0 0 0 x x x
      where "ss" specifies the segment override:
        00 -> DS:
        01 -> SS:
        10 -> CS:
        11 -> ES:
SeeAlso: INT 3B,INT 3D
--------r-3D---------------------------------
INT 3D - FLOATING POINT EMULATION - STANDALONE FWAIT
Notes:    the floating-point emulators in Borland and Microsoft languages and
      Lahey FORTRAN use this interrupt
    this vector is modified but not restored by Direct Access v4.0, and
      may be left dangling by other programs written with the same version
      of compiled BASIC
SeeAlso: INT 3C,INT 3E
--------r-3E---------------------------------
INT 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL
Notes:    the two bytes following the INT 3E instruction are the subcode
      (see #2450) and a NOP (90h), except for subcodes DCh and DEh, where
      the second byte is a register count (01h-08h)
    this vector is modified but not restored by Direct Access v4.0, and
      may be left dangling by other programs written with the same version
      of compiled BASIC
SeeAlso: INT 3D

(Table 2450)
Values for Borland floating-point shortcut subcode:
Subcode        Function
 DCh    load 8086 stack with 8087 registers; overwrites the 10*N bytes at the
      top of the stack prior to the INT 3E with the 8087 register contents
 DEh    load 8087 registers from top of 8086 stack; ST0 is furthest from top
      of 8086 stack
 E0h    round TOS and R1 to single precision, compare, pop twice
      returns AX=8087 status word, FLAGS=8087 condition bits
 E2h    round TOS and R1 to double precision, compare, pop twice
      returns AX=8087 status word, FLAGS=8087 condition bits
    Note: buggy in TPas5.5, because it sets the 8087 precision control
      field to the undocumented value 01h; this results in actually
      rounding to single precision
 E4h    compare TOS/R1 with two POP's
      returns FLAGS=8087 condition bits
 E6h    compare TOS/R1 with POP
      returns FLAGS=8087 condition bits
 E8h    FTST (check TOS value)
      returns FLAGS=8087 condition bits
 EAh    FXAM (check TOS value)
      returns AX=8087 status word
 ECh    sine(ST0)
 EEh    cosine(ST0)
 F0h    tangent(ST0)
 F2h    arctangent(ST0)
 F4h    ST0 = ln(ST0)
 F6h    ST0 = log2(ST0)
 F8h    ST0 = log10(ST0)
 FAh    ST0 = e**ST0
 FCh    ST0 = 2**ST0
 FEh    ST0 = 10**ST0
--------r-3F---------------------------------
INT 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM)
Notes:    INT 3F is the default, and may be overridden while linking
    this vector is modified but not restored by Direct Access v4.0, and
      may be left dangling by other programs written with the same version
      of compiled BASIC
SeeAlso: INT FE"OVERLAY"
--------r-3F---------------------------------
INT 3F - Microsoft Dynamic Link Library manager
SeeAlso: INT 21/AH=4Bh
--------B-40---------------------------------
INT 40 - DISKETTE - ROM BIOS DISKETTE HANDLER RELOCATED BY HARD DISK BIOS
SeeAlso: INT 13/AH=00h,INT 13/AH=02h,INT 47"SuperBIOS",INT 63"Adaptec"
--------h-40---------------------------------
INT 40 - Z100 - Master 8259 - Parity error or S100 error
SeeAlso: INT 41"Z100",INT FF"Z100"
--------O-40---------------------------------
INT 40 - Acorn BBC Master 512 - "OSFIND" - OPEN FILE
    AL = operation
        00h close file
        40h open file for reading
        80h open file for writing
        C0h open file for random access
    DS:BX -> CR-terminated filename
Return: AL = file handle (00h if file closed or could not be opened)
Note:    the Acorn BBC Master 512 is an 80186-based add-on board for the
      6502-based Master 128 which uses the original CPU as an I/O processor
SeeAlso: INT 41"Acorn",INT 42"Acorn",INT 43"Acorn",INT 44"Acorn",INT 4C"Acorn"
--------h-40---------------------------------
INT 40 - TI Professional PC - IRQ0
Note:    on the TI Pro, IRQ0 is connected to the same pin on the expansion bus
      that IBM connects to IRQ2
SeeAlso: INT 0A"IRQ2",INT 41"TI Professional"
--------B-41---------------------------------
INT 41 - SYSTEM DATA - HARD DISK 0 PARAMETER TABLE
Notes:    the default parameter table array is located at F000h:E401h in 100%
      compatible BIOSes; the pointer may be overridden by the hard disk
      controller's BIOS to support drive formats unknown to the ROM BIOS
    not used by some PS/2 models
    BIOSes which support four hard drives may store the parameter tables
      for drives 81h-83h immediately following the parameter table pointed
      at by INT 41, with a separate copy of the drive 81h table for INT 46.
      The check for such an arrangement is to test whether INT 46 points
      somewhere other than exactly 16 bytes past INT 41, and the sixteen
      bytes starting at offset 10h from INT 41 are identical to the sixteen
      bytes pointed at by INT 46
SeeAlso: #2451,INT 13/AH=09h,INT 1E,INT 46"HARD DISK 1",INT 60"Adaptec"
SeeAlso: INT C0"AMI"

Format of fixed disk parameters:
Offset    Size    Description    (Table 2451)
 00h    WORD    number of cylinders
 02h    BYTE    number of heads
 03h    WORD    starting reduced write current cylinder (XT only, 0 for others)
 05h    WORD    starting write precompensation cylinder number
 07h    BYTE    maximum ECC burst length (XT only)
 08h    BYTE    control byte (see #2452,#2453)
 09h    BYTE    standard timeout (XT only, 0 for others)
 0Ah    BYTE    formatting timeout (XT and WD1002 only, 0 for others)
 0Bh    BYTE    timeout for checking drive (XT and WD1002 only, 0 for others)
 0Ch    WORD    cylinder number of landing zone (AT and later only)
 0Eh    BYTE    number of sectors per track (AT and later only)
 0Fh    BYTE    reserved
SeeAlso: #0183,#0185

Bitfields for XT fixed disk control byte:
Bit(s)    Description    (Table 2452)
 2-0    drive step speed
    000  3ms
    100  200ms
    101  70ms (default)
    110  3ms
    111  3ms
 5-3    unused
 6    disable ECC retries
 7    disable access retries

Bitfields for AT fixed disk control byte:
Bit(s)    Description    (Table 2453)
 0    unused
 1    reserved (0)  (disable IRQ)
 2    reserved (0)  (no reset)
 3    set if more than 8 heads
 4    always 0
 5    set if manufacturer's defect map on max cylinder+1  (AT and later only)
 6    disable ECC retries
 7    disable access retries
--------h-41---------------------------------
INT 41 - Z100 - Master 8259 - Processor Swap
SeeAlso: INT 40"Z100",INT 42"Z100"
--------h-41---------------------------------
INT 41 - TI Professional PC - IRQ1
Note:    on the TI Pro, IRQ1 is connected to the same pin on the expansion bus
      that IBM connects to IRQ3
SeeAlso: INT 0B"IRQ3",INT 40"TI Professional",INT 42"TI Professional"
--------O-41---------------------------------
INT 41 - Acorn BBC Master 512 - "OSGBPB" - MULTI-BYTE GET/PUT
    AL = function
        01h put bytes sequentially
        02h put bytes, ignoring sequential pointer
        03h get bytes sequentially
        04h get bytes, ignoring sequential pointer
        05h get media title and boot option
        06h get current device and directory
        07h get current library and device
        08h search directory
    DS:BX -> control block (see #2454)
Return: CF clear if successful
    CF set on error
    AL = 00h if operation attempted
    AL unchanged if unsupported function
SeeAlso: INT 40"Acorn",INT 42"Acorn",INT 43"Acorn"

Format of BBC Master control block:
Offset    Size    Description    (Table 2454)
 00h    BYTE    file handle
 01h    DWORD    pointer to data in either I/O processor or Tube processor
 05h    DWORD    number of bytes to be transferred
 09h    DWORD    transfer address
--------G-410000-----------------------------
INT 41 CPU - MS Windows debugging kernel - OUTPUT CHARACTER FOR USER
    AX = 0000h
    DS:DX -> character
Note:    the kernel calls this function when it wants the user program to
      output a character
SeeAlso: AX=0001h
--------G-410001-----------------------------
INT 41 CPU - MS Windows debugging kernel - INPUT CHARACTER
    AX = 0001h
Return: AL = character
Note:    the kernel calls this function when it needs to input a character
SeeAlso: AX=0000h
--------G-41000D-----------------------------
INT 41 CPU - MS Windows debugging kernel - TASK GOING OUT
    AX = 000Dh
SeeAlso: AX=000Eh
--------G-41000E-----------------------------
INT 41 CPU - MS Windows debugging kernel - TASK COMING IN
    AX = 000Eh
SeeAlso: AX=000Dh
--------G-410012-----------------------------
INT 41 CPU - MS Windows debugging kernel - "OutputDebugString"
    AX = 0012h
    DS:SI -> string (Windows 3.0)
    ES:SI -> string (Windows 3.1)
Return: nothing???
Note:    this function is called by the kernel when it wants to output a
      string through the debugger
SeeAlso: AX=0050h,INT 68/AH=47h
--------G-41004F-----------------------------
INT 41 CPU - MS Windows debugging kernel - DEBUGGER INSTALLATION CHECK
    AX = 004Fh
Return: AX = F386h if debugger is present
SeeAlso: INT 68/AX=4400h
--------G-410050-----------------------------
INT 41 P - MS Windows debugging kernel - "DefineDebugSegment"
    AX = 0050h
    BX = segment number in executable (0-based)
    CX = selector
    DX = instance handle
    SI = segment flags (0=code, 1=data)
    ES:DI -> module name of owner
Return: ???
SeeAlso: AX=0012h,AX=004Fh
--------G-410051-----------------------------
INT 41 CPU - MS Windows debugging kernel - MOVE SEGMENT
    AX = 0051h
    ???
Return: ???
SeeAlso: AX=0050h,AX=0052h
--------G-410052-----------------------------
INT 41 CPU - MS Windows debugging kernel - FREE SEGMENT
    AX = 0052h
    BX = freed selector
SeeAlso: AX=0050h,AX=0051h,AX=005Ch
--------G-410059-----------------------------
INT 41 CPU - MS Windows debugging kernel - LOAD TASK
    AX = 0059h
    ???:BX = CS:IP of new task's starting point
--------G-41005C-----------------------------
INT 41 CPU - MS Windows debugging kernel - FREE INITIAL SEGMENT
    AX = 005Ch
    BX = freed selector
Note:    called only when KERNEL starts, once for CS and once for the DS alias
      to CS
SeeAlso: AX=0052h
--------G-410060-----------------------------
INT 41 CPU - MS Windows debugging kernel -  END OF SEGMENT LOAD
    AX = 0060h
    ???
Return: ???
SeeAlso: AX=0061h
--------G-410061-----------------------------
INT 41 CPU - MS Windows debugging kernel - END OF SEGMENT DISCARD
    AX = 0061h
    ???
Return: ???
SeeAlso: AX=0060h
--------G-410062-----------------------------
INT 41 CPU - MS Windows debugging kernel - APPLICATION TERMINATING
    AX = 0062h
STACK:    BYTE    exit code
Return: ???
    STACK unchanged???
SeeAlso: AX=0064h
--------G-410063-----------------------------
INT 41 CPU - MS Windows debugging kernel - ASYNCHRONOUS STOP (Ctrl-Alt-SysReq)
    AX = 0063h
--------G-410064-----------------------------
INT 41 CPU - MS Windows debugging kernel - DLL LOADED
    AX = 0064h
    CX:BX = DLL entry point CS:IP
    SI = module handle
SeeAlso: AX=0062h,AX=0065h
--------G-410065-----------------------------
INT 41 CPU - MS Windows debugging kernel - MODULE REMOVED
    AX = 0065h
    ES = module handle
SeeAlso: AX=0064h
--------V-42---------------------------------
INT 42 - VIDEO - RELOCATED DEFAULT INT 10 VIDEO SERVICES (EGA,VGA)
Desc:    contains the address of the original INT 10 handler which an EGA+
      video adapter replaces with its own on-board BIOS code
SeeAlso: INT 10/AH=00h,INT 10/AH=0Eh,INT 6D"VGA"
Note:    not used by PS/2 built-in VGA or XGA
--------h-42---------------------------------
INT 42 - Z100 - Master 8259 - Timer
SeeAlso: INT 41"Z100",INT 43"Z100"
--------h-42---------------------------------
INT 42 - TI Professional PC - IRQ2
Note:    on the TI Pro, IRQ0 is connected to the same pin on the expansion bus
      that IBM connects to IRQ4
SeeAlso: INT 0C"IRQ4",INT 41"TI Professional",INT 43"TI Professional"
--------b-42---------------------------------
INT 42 - Western Digital WD1002 SuperBIOS - INT 40 CASCADE
Note:    if the second WD1002 controller in the system finds INT 40 already in
      use, it uses this vector to cascade to the first controller's BIOS
SeeAlso: INT 40"DISKETTE",INT 47"SuperBIOS"
--------O-42---------------------------------
INT 42 - Acorn BBC Master 512 - "OSBPUT" - WRITE SINGLE BYTE TO FILE
    AL = byte to be written
    BH = file handle
Return: flags destroyed
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn"
--------V-427500-----------------------------
INT 42 U - Toshiba laptops - ???
    AX = 7500h
    BL = ??? (00h or 01h)
Return: ???
Note:    used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7501h,AX=7503h
--------V-427501-----------------------------
INT 42 U - Toshiba laptop - GET ??? DATA
    AX = 7501h
    DS:DI -> data area to be filled ???
Return: area filled with data ???
Note:    used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7500h,AX=7502h,AX=7503h
--------V-427502-----------------------------
INT 42 U - Toshiba laptops - SET ??? DATA
    AX = 7502h
    DS:DI -> data area ???
Return: ???
Note:    used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7501h,AX=7503h
--------V-427503-----------------------------
INT 42 - Toshiba laptops - GET DISPLAY STATUS
    AX = 7503h
Return: AX = 7575h if supported
    CX = 0001h if supported
    BH = display type (00h color, 03h monochrome)
    BL = display state
        01h internal LCD display is active
        02h external VGA display is active
        03h both displays active / DeskStation display mode enabled
        (not possible on all machines)
Note:    used by VCHAD.EXE and supported by all Toshiba VGA laptops until about
      1994 (string "TOSHIBA " at F000:E010h should be checked before call)
    no longer supported by T21xx series, use INT 10/AX=5F50h instead
    INT 42 normally points to F000:F065h but may be redirected by QEMM386
SeeAlso: AX=7500h,AX=7504h,INT 10/AX=5F50h,INT 15/AH=C0h
--------V-427504-----------------------------
INT 42 U - Toshiba laptops - ???
    AX = 7504h
    BL = ???
Return: BH = ???
Note:    used by Toshiba utility VCHAD.EXE
SeeAlso: AX=7500h,AX=7503h
--------V-43---------------------------------
INT 43 - VIDEO DATA - CHARACTER TABLE (EGA,MCGA,VGA)
Desc:    points at graphics data for characters 00h-7Fh of the current font
      in 8x8 dot modes, graphics data for all characters in 8x14 and 8x16
      modes
Note:    this is not a callable vector!
SeeAlso: INT 06"no-name",INT 1F"SYSTEM DATA",INT 44"VIDEO"
--------h-43---------------------------------
INT 43 - Z100 - Master 8259 - Slave 8259 input
Note:    slave runs in special fully nested mode
SeeAlso: INT 42"Z100",INT 44"Z100"
--------h-43---------------------------------
INT 43 - TI Professional PC - IRQ3 - TIMER1 25ms INTERVAL INTERRUPT
SeeAlso: INT 0B"IRQ3",INT 42"TI Professional",INT 44"TI Professional"
SeeAlso: INT 58"TI Professional"
--------O-43---------------------------------
INT 43 - Acorn BBC Master 512 - "OSBGET" - READ SINGLE BYTE FROM FILE
    BH = file handle
Return: CF clear if successful
        AL = byte read from file
    CF set on error
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 42"Acorn",INT 46"Acorn"
--------V-44---------------------------------
INT 44 - VIDEO DATA - ROM BIOS CHARACTER FONT, CHARACTERS 00h-7Fh (PCjr)
Desc:    this vector points at graphics data for current character font
SeeAlso: INT 1F"SYSTEM DATA",INT 43"VIDEO"
--------N-44---------------------------------
INT 44 - Novell NetWare - HIGH-LEVEL LANGUAGE API
--------I-44---------------------------------
INT 44 - IBM 3270-PC High Level Language API
    DS:SI -> parameter control block
--------h-44---------------------------------
INT 44 - Z100 - Master 8259 - Serial A
SeeAlso: INT 43"Z100",INT 45"Z100"
--------h-44---------------------------------
INT 44 - TI Professional PC - IRQ4
Note:    on the TI Pro, IRQ4 is connected to the same pin on the expansion bus
      that IBM connects to IRQ5
SeeAlso: INT 0D"IRQ5",INT 43"TI Professional",INT 45"TI Professional"
--------v-44---------------------------------
INT 44 - VIRUS - "Lehigh" - ORIGINAL INT 21h VECTOR
SeeAlso: INT 32"VIRUS",INT 60"VIRUS",INT 70"VIRUS",INT 9E"VIRUS"
--------O-4400-------------------------------
INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE
    AH = 00h
    AL = function
        00h get current filing system
        Return: AL = filing system (see #2455)
        01h get address of commandline tail
        Return: BX buffer filled with address of command tail in I/O
                  processor address space (use INT 4A/AL=05h to
                  retrieve)
        FFh flush all files onto secondary storage
    BX -> 4-byte data buffer
Note:    the commandline tail is terminated with a carriage return (0Dh)
SeeAlso: INT 40"Acorn",INT 45"Acorn"

(Table 2455)
Values for BBC Master filing system:
 00h    none
 01h    1200 bps cassette
 02h    300 bps cassette
 03h    ROM FS
 04h    DFS
 05h    ANFS/NFS
 06h    TFS
 08h    ADFS
--------O-44---------------------------------
INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE
    AH = nonzero file handle
    AL = function
        00h get sequential pointer for file
        01h set sequential pointer for file
        02h get length of file
    BX -> 4-byte data buffer
Return: BX buffer updated if appropriate
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44/AH=00h,INT 45"Acorn",INT 4A"Acorn"
--------h-45---------------------------------
INT 45 - Z100 - Master 8259 - Serial B
SeeAlso: INT 44"Z100",INT 46"Z100"
--------h-45---------------------------------
INT 45 - TI Professional PC - IRQ5
Note:    on the TI Pro, IRQ5 is connected to the same pin on the expansion bus
      that IBM connects to IRQ6
SeeAlso: INT 0E"IRQ6",INT 44"TI Professional",INT 46"TI Professional"
--------O-45---------------------------------
INT 45 - Acorn BBC Master 512 - "OSFILE" - READ/WRITE FILE OR DIRECTORY INFO
    AL = function
        00h save block of memory as file
        01h update directory entry for existing file
        02h set load address for existing file
        03h set execution address for existing file
        04h set attributes for existing file
        05h read directory
        06h delete file
        FFh load file
    DS:BX -> control block (see #2456)
Return: FLAGS destroyed
    AL = file type
        00h not found
        01h file found
        02h directory found
        FFh protected file
SeeAlso: INT 40"Acorn",INT 41"Acorn",INT 44"Acorn",INT 46"Acorn"

Format of BBC Master control block:
Offset    Size    Description    (Table 2456)
 00h    WORD    address of CR-terminated filename
 02h    DWORD    load address of file
 06h    DWORD    execution address of file
 0Ah    DWORD    start address of data to save
 0Eh    DWORD    end address of data to save, or file attributes
        file attributes in low byte (see #2457)
        other three bytes are filing-system specific file attributes

Bitfields for BBC Master file attributes:
Bit(s)    Description    (Table 2457)
 0    no owner read access
 1    no owner write access
 2    not executable by owner
 3    not deletable by owner
 4    no public read access
 5    no public write access
 6    not executable with public access
 7    not deletable with public access
--------B-46---------------------------------
INT 46 - SYSTEM DATA - HARD DISK 1 DRIVE PARAMETER TABLE
Note:    not used by some PS/2 models
SeeAlso: INT 13/AH=09h,INT 41"HARD DISK 0",INT 60"Adaptec",INT C0"AMI"
--------h-46---------------------------------
INT 46 - Z100 - Master 8259 - Keyboard, Retrace, and Light Pen
SeeAlso: INT 45"Z100",INT 47"Z100"
--------h-46---------------------------------
INT 46 - TI Professional PC - IRQ6 - FLOPPY DISK CONTROLLER
Note:    on the TI Pro, IRQ6 is connected to the same pin on the expansion bus
      that IBM connects to IRQ7
SeeAlso: INT 0F"IRQ7",INT 45"TI Professional",INT 47"TI Professional"
--------O-46---------------------------------
INT 46 - Acorn BBC Master 512 - "OSRDCH" - GET CHARACTER FROM CUR INPUT STREAM
Return: CF clear if successful
        AL = character read
    CF set on error
        AL = error code
SeeAlso: INT 40"Acorn",INT 43"Acorn",INT 47"Acorn",INT 49"Acorn"
--------h-47---------------------------------
INT 47 - Z100 - Master 8259 - Printer
SeeAlso: INT 46"Z100",INT 48"Z100"
--------h-47---------------------------------
INT 47 - TI Professional PC - IRQ7 - KEYBOARD USART
SeeAlso: INT 09"IRQ1",INT 46"TI Professional"
--------O-47---------------------------------
INT 47 - Acorn BBC Master 512 - "OSWRCH" - WRITE CHARACTER TO CUR OUTPUT STREAM
    AL = character to be written
Return: FLAGS destroyed
SeeAlso: INT 40"Acorn",INT 46"Acorn",INT 49"Acorn"
--------b-47---------------------------------
INT 47 - Western Digital WD1002-27X SuperBIOS - INT 40 CASCADE
Desc:    used by the second WD1002-27X controller to cascade to the first
      controller's INT 40
SeeAlso: INT 40"DISKETTE",INT 42"SuperBIOS",INT 48"SuperBIOS"
----------478000-----------------------------
INT 47 - SQL Base - DATABASE ENGINE API
    AX = 8000h
    DS:BX -> parameter block, first word is function number (see #2458)
Program: SQL Base is a network-oriented database engine by Gupta Technologies
SeeAlso: AX=8001h

(Table 2458)
Values for SQL Base function number:
 01h    "SQLFINI" initalialize application's use of the database
 02h    "SQLFDON" application is done using the database
 03h    "SQLFCON" connect to a cursor/database
 04h    "SQLFDIS" disconnect from a cursor/database
 05h    "SQLFCOM" compile a SQL command
 06h    "SQLFEXE" execute a SQL command
 07h    "SQLFCEX" compile and execute a SQL command
 08h    "SQLFCMT" commit a transaction to the database
 09h    "SQLFDES" describe the items of a SELECT statement
 0Ah    "SQLFGFI" get fetch information
 0Bh    "SQLFFBK" fetch previous result row from SELECT statement
 0Ch    "SQLFFET" fetch next result row from SELECT statement
 0Dh    "SQLFEFB" enable fetch backwards
 0Eh    "SQLFPRS" position in result set
 0Fh    "SQLFURS" undo result set
 10h    "SQLFNBV" get number of bind variables
 11h    "SQLFBND" bind data variables
 12h    "SQLFBNN" bind numerics
 13h    "SQLFBLN" bind long number
 14h    "SQLFBLD" bind long data variables
 15h    "SQLFSRS" start restriction set processing
 16h    "SQLFRRS" restart restriction set processing
 17h    "SQLFCRS" close restriction set
 18h    "SQLFDRS" drop restriction set
 19h    "SQLFARF" apply Roll Forward journal
 1Ah    "SQLFERF" end Roll Forward journal
 1Bh    "SQLFSRF" start Roll Forward journal
 1Ch    "SQLFSTO" store a compiled SQL command
 1Dh    "SQLFRET" retrieve a compiled SQL command
 1Eh    "SQLFDST" drop a stored command
 1Fh    "SQLFCTY" get command type
 20h    "SQLFEPO" get error position
 21h    "SQLFGNR" get number of rows
 22h    "SQLFNSI" get number of select items
 23h    "SQLFRBF" get Roll Back flag
 24h    "SQLFRCD" get return code
 25h    "SQLFROW" get number of ROWs
 26h    "SQLFSCN" set cursor name
 27h    "SQLFSIL" set isolation level
 28h    "SQLFSLP" set log parameters
 29h    "SQLFSSB" set select buffer
 2Ah    "SQLFSSS" set sort space
 2Bh    "SQLFRLO" read long
 2Ch    "SQLFWLO" write long
 2Dh    "SQLFLSK" long seek
 2Eh    "SQLFGLS" get long size
 2Fh    "SQLFELO" end long operation
 30h    "SQLFRBK" roll back a transaction from the database
 31h    "SQLFERR" error message
 32h    "SQLFCPY" copy
 33h    "SQLFR01" reserved
 34h    "SQLFSYS" system
 35h    "SQLFSTA" statistics
 36h    "SQLFR02" reserved
 37h    "SQLFXAD" extra add
 38h    "SQLFXCN" extra character to number
 39h    "SQLFXDA" extra date add
 3Ah    "SQLFXDP" extra date picture
 3Bh    "SQLFXDV" extra divide
 3Ch    "SQLFXML" extra multiply
 3Dh    "SQLFXNP" extra number picture
 3Eh    "SQLFXPD" extra picture date
 3Fh    "SQLFXSB" extra subtract
 40h    "SQLFINS" install database
 41h    "SQLFDIN" deinstall database
 42h    "SQLFDIR" directory of databases
 43h    "SQLFTIO" timeout
 44h    "SQLFFQN" get fully qualified column name
 45h    "SQLFEXP" explain execution plan
 46h    "SQLFFER" get full error
 47h    "SQLFBKP" begin online backup
 48h    "SQLFRDC" read backup data chunk
 49h    "SQLFEBK" end backup
 4Ah    "SQLFRES" begin restore from backup
 4Bh    "SQLFWDC" write backup data chunk for restore
 4Ch    "SQLFRRD" recover restored database to consistent state
 4Dh    "SQLFERS" end restore
 4Eh    "SQLFNRR" return number of result set rows
 4Fh    "SQLFSTR" start restriction mode
 50h    "SQLFSPR" stop restriction mode
 51h    "SQLFCNC" connect 2
 52h    "SQLFCNR" connect with no recovery
 53h    "SQLFOMS" set output message size
 54h    "SQLFIMS" set input message size
 55h    "SQLFSCP" set cache pages
 56h    "SQLFDSC" describe items of a SELECT statement (external)
 57h    "SQLFLAB" get label info for items in SELECT statement
 58h    "SQLFCBV" clear bind variables
 59h    "SQLFGET" get database information
 5Ah    "SQLFSET" set database information
 5Bh    "SQLFTEC" translate error code
----------478001-----------------------------
INT 47 - SQL Base - GET VERSION NUMBER
    AX = 8001h
Return: ???
Program: SQL Base is a network-oriented database engine by Gupta Technologies
SeeAlso: AX=8000h
--------B-48---------------------------------
INT 48 - KEYBOARD - CORDLESS KEYBOARD TRANSLATION (PCjr)
SeeAlso: INT 49"PCjr"
--------h-48---------------------------------
INT 48 - Z100 - Slave 8259 - S100 vectored line 0
SeeAlso: INT 47"Z100",INT 49"Z100"
--------N-48---------------------------------
INT 48 - Watstar PC Network data pointer 1
SeeAlso: INT 49"Watstar"
--------O-48---------------------------------
INT 48 - Acorn BBC Master 512 - "OSNEWL" - SEND NEWLINE TO OUTPUT STREAM
Return: FLAGS destroyed
Note:    writes a carriage return (0Dh) followed by a linefeed (0Ah)
SeeAlso: INT 40"Acorn",INT 47"Acorn",INT 49"Acorn"
--------b-48---------------------------------
INT 48 - Western Digital WD1002-27X SuperBIOS - DRIVE DATA (NOT A VECTOR!)
Note:    the second WD1002-27X controller in a system uses the low byte to
      store the number of drives controlled by the second controller,
      and the high word for temporary storage during track recalculation;
      the first controller uses offsets 74h-77h in the BIOS data area
      (refer to MEMORY.LST) to store data
SeeAlso: INT 47"SuperBIOS"
--------V-48---------------------------------
INT 48 U - Compaq UILIB.EXE - API
    AX = function (see #2459)
    BX = call type (0002h) (see #2462)
    ???
Return: ???
Note:    returns AX=FFFFh if 1000h<=AX<=2000h and AX is not one of the functions
      listed below
SeeAlso: AX=1A70h

(Table 2459)
Values for valid UILIB function number:
 1000h    1160h    12D0h    1430h    1570h    1680h    17F0h    1920h    1A90h
 1010h    1170h    12E0h    1440h    1578h    1690h    1800h    1930h    1AA0h
 1020h    1180h    12F0h    1450h    1580h    16A0h    1810h    1940h
 1030h    1190h    1300h    1460h    1590h    16B0h    1820h    1950h
 1040h    11A0h    1310h    1470h    1594h    16C0h    1830h    1960h
 1050h    11B0h    1320h    1480h    1598h    16D0h    1840h    1970h
 1060h    11C0h    1330h    1490h    15A0h    16E0h    1848h    1980h
 1070h    11D0h    1340h    14A0h    15B0h    16F0h    1850h    1990h
 1080h    11E0h    1350h    14B0h    15C0h    1700h    1860h    19A0h
 1090h    11F0h    1360h    14B8h    15D0h    1710h    1870h    19B0h
 1095h    1200h    1370h    14BBh    15D4h    1720h    1878h    19C0h
 1098h    1210h    1380h    14C0h    15D8h    1730h    1880h    19D0h
 10A0h    1220h    1390h    14D0h    15E0h    1735h    1890h    19E0h
 10C0h    1230h    13A0h    14E0h    15F0h    1740h    1898h    19F0h
 10D0h    1240h    13B0h    14F0h    1600h    1750h    18A0h    1A00h
 10E0h    1250h    13B8h    1500h    1610h    1770h    18B0h    1A10h
 10F0h    1260h    13C0h    1508h    1620h    1780h    18C0h    1A20h
 1100h    1270h    13D0h    1510h    1630h    1790h    18D0h    1A30h
 1110h    1280h    13E0h    1520h    1640h    17A0h    18E0h    1A40h
 1120h    1290h    13F0h    1530h    1650h    17B0h    18F0h    1A50h
 1130h    12A0h    1400h    1540h    1660h    17C0h    1900h    1A60h
 1140h    12B0h    1410h    1550h    1664h    17D0h    1909h    1A70h
 1150h    12C0h    1420h    1560h    1670h    17E0h    1910h    1A80h
--------b-4800-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - SOUND SPEAKER
    AH = 00h
    AL = number of 25ms ticks sound should last
Return: nothing
Desc:    sound the speaker at the current frequency setting (see AH=02h) for
      the indicated duration
Notes:    this function returns immediately; the sound is terminated by the
      timer interrupt handler
    if a new sound is requested while one is already in progress, the
      previous sound is terminated immediately and the new sound takes
      its place
SeeAlso: AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
SeeAlso: INT 40"TI Professional",INT 49/AH=01h"TI"
SeeAlso: INT 4A/AH=00h"TI",INT 4C"TI Professional",INT 4D/AH=00h
--------b-4801-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - CHECK SPEAKER STATUS
    AH = 01h
Return: ZF clear if speaker is currently on
    ZF set if speaker is currently off
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4802-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - SET SPEAKER FREQUENCY
    AH = 02h
    CX = frequency divisor (freq = 1250000 / CX)
Return: nothing
SeeAlso: AH=00h,AH=01h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4803-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - TURN ON SPEAKER
    AH = 03h
Return: nothing
Desc:    turn on the speaker at the current frequency, leaving it on until
      explicitly turned off with AH=04h or the end of a subsequent
      AH=00h
SeeAlso: AH=00h,AH=01h,AH=02h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4804-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - TURN OFF SPEAKER
    AH = 04h
Return: nothing
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4805-------------------------------
INT 48 - TI Professional PC - SPEAKER DEVICE - DELAY
    AH = 05h
    CX = desired delay in milliseconds
Return: after delay expires
Note:    the delay is only approximate, and may be longer than requested
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4806-------------------------------
INT 48 - TI Professional PC - CALCULATE CRC
    AH = 06h
    ES:BX -> memory block for which to calculate CRC
    BP = size of block in bytes
Return: DX = CRC for block
    ZF set if DX = 0000h
Note:    if the CRC of a memory block is appended to the block, then the CRC
      of the block plus CRC should equal 0000h
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4807-------------------------------
INT 48 - TI Professional PC - PRINT ROM MESSAGE
    AH = 07h
    SI = offset of ASCIZ message string within segment F400h
Return: nothing
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4808-------------------------------
INT 48 - TI Professional PC - DISPLAY SYSTEM ERROR MESSAGE
    AH = 08h
    BX = error number
Return: nothing
Desc:    displays the error message " ** System Error ** - xxxx" where xxxx is
      the hexadecimal value in BX
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-4809-------------------------------
INT 48 - TI Professional PC - GET SYSTEM CONFIGURATION DATA
    AH = 09h
Return: ES:BX -> system configuration word (see #2482)
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah,AH=0Bh
--------b-480A-------------------------------
INT 48 - TI Professional PC - GET EXTRA SYSTEM CONFIGURATION INFO ADDRESS
    AH = 0Ah
Return: ES:BX -> configuration information (see #2460)
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Bh

Format of TI Professional PC extra system configuration information:
Offset    Size    Description    (Table 2460)
 -3    WORD    memory size in paragraphs
 00h    BYTE    drive type byte (see #2461)
 01h    WORD    extra system configuration word 1
        bit 0: 8087 is present
        bits 15-1: reserved (0)
 03h    WORD    extra system configuration word 2
        bits 15-0: reserved (0)

Bitfields for TI Professional PC drive type byte:
Bit(s)    Description    (Table 2461)
 0    drive A is double-sided
 1    drive A has 80 tracks instead of 40
 2    drive B is double-sided
 3    drive B has 80 tracks instead of 40
 4    drive C is double-sided
 5    drive C has 80 tracks instead of 40
 6    drive D is double-sided
 7    drive D has 80 tracks instead of 40
Note:    the type for drive A is determined by motherboard switches; the
      remaining drives' types are set from a table in IO.SYS
SeeAlso: #2460
--------b-480B-------------------------------
INT 48 - TI Professional PC - GET EXTRA SYSTEM CONFIGURATION INFORMATION
    AH = 0Bh
Return: AL = drive type byte (see #2461)
    BX = extra system configuration word 1 (see #2460)
    CX = extra system configuration word 2 (see #2460)
    AH destroyed
SeeAlso: AH=00h,AH=01h,AH=02h,AH=03h,AH=04h,AH=06h,AH=08h,AH=0Ah
--------V-481A70-----------------------------
INT 48 U - Compaq UILIB.EXE - INSTALLATION CHECK
    AX = 1A70h
    BX = call type (see #2462)
Return: CX = 5649h ('VI') if installed
    DX = 4557h ('EW') if installed
        AX = version??? (0106h)

(Table 2462)
Values for UILIB call type:
 0000h    near
 0001h    far
 0002h    INT (only valid call type when using INT 48)
 0003h    near
--------B-49---------------------------------
INT 49 - SYSTEM DATA - NON-KEYBOARD SCAN-CODE TRANSLATION TABLE (PCjr)
SeeAlso: #2463,INT 48"PCjr"

Format of PCjr scan-code translation table:
Offset    Size    Description    (Table 2463)
 00h    BYTE    number of non-keyboard scancodes in the table
 01h  N WORDs    high byte 00h (NUL) byte scancode with low order byte
          representing the scancode mapped values relative to their
          input values within the range of 56h through 7Eh
--------h-49---------------------------------
INT 49 - Z100 - Slave 8259 - S100 vectored line 1
SeeAlso: INT 48"Z100",INT 4A"Z100"
--------N-49---------------------------------
INT 49 - Watstar PC Network data pointer 2
SeeAlso: INT 48"Watstar"
--------O-49---------------------------------
INT 49 - Acorn BBC Master 512 - "OSASCI" - WRITE CHARACTER TO CUR OUTPUT STREAM
    AL = character to be written
Return: FLAGS destroyed
Note:    converts carriage return (0Dh) into CRLF sequence (0Dh 0Ah)
SeeAlso: INT 40"Acorn",INT 46"Acorn",INT 47"Acorn",INT 48"Acorn"
--------b-49---------------------------------
INT 49 - Tandy 2000 - BOOTSTRAP LOADER
Note:    this interrupt is identical to INT 19
SeeAlso: INT 19,INT 4A"Tandy 2000",INT 4C"Tandy 2000",INT 51"Tandy 2000"
--------a-490001-----------------------------
INT 49 - MAGic v1.16+ - TURN ON MAGNIFICATION
    AX = 0001h
Return: AX = status (see #2464)
    BX,CX,DX destroyed
Program: MAGic (MAGnification In Color) is a TSR by Microsystems Software, Inc.
      providing 2x2 text and graphics magnification on VGA, XGA, and SVGA
Note:    INT 49 is the default, but may be overridden on the commandline.  The
      actual interrupt in use may be found by searching for the signature
      "MAGic" or "xMAGic" (for the deluxe version) immediately preceding
      the interrupt handler (this is also the installation check).    MAGic
      uses CodeRunneR, which places the signature "RT" at offset 0000h in
      the interrupt handler's segment, followed by MAGic's TSR ID of
      "VMAG".
SeeAlso: AX=0002h,AX=0003h,AX=0004h,AX=0008h
Index:    installation check;MAGic

(Table 2464)
Values for MAGic status:
 0000h    cannot magnify current video mode
 0002h    magnified (text mode)
 0003h    magnified (graphics mode)
 FFFDh    function works only in magnified mode
 FFFFh    MAGic busy, retry later
--------a-490002-----------------------------
INT 49 - MAGic v1.16+ - TURN OFF MAGNIFICATION
    AX = 0002h
Return: AX = status (see #2464)
    BX,CX,DX destroyed
SeeAlso: AX=0001h
--------a-490003-----------------------------
INT 49 - MAGic v1.16+ - SHIFT MAGNIFIED WINDOW TO INCLUDE SPECIFIED LOCATION
    AX = 0003h
    BX = vertical position (character row [text] or pixel row [graphics])
    DX = horizontal position (char column [text] or 8-pixel units [gr])
Return: AX = status
        0000h successful
        FFFFh MAGic busy, retry later
    BX,CX,DX destroyed
Note:    window is not moved if the position is inside the current window
SeeAlso: AX=0001h,AX=0004h,AX=0005h
--------a-490004-----------------------------
INT 49 - MAGic v1.16+ - REPOSITION MAGNIFIED WINDOW
    AX = 0004h
    BX = vertical position of upper left corner
    DX = horizontal position
Return: AX = status (see AX=0003h)
    BX,CX,DX destroyed
SeeAlso: AX=0001h,AX=0003h,AX=0005h
--------a-490005-----------------------------
INT 49 - MAGic v1.16+ - GET POSITION OF MAGNIFIED WINDOW
    AX = 0005h
Return: AX = status
        0000h successful
        BX = vertical position (char row or pixel row)
        DX = horizontal position (char column or 8-pixel units)
        FFFFh MAGic busy, retry later
        BX,DX destroyed
    CX destroyed
SeeAlso: AX=0001h,AX=0003h,AX=0004h,AX=0006h,AX=0007h
--------a-490006-----------------------------
INT 49 - MAGic v1.16+ - GET SIZE OF FULL SCREEN
    AX = 0006h
Return: AX = status
        0000h successful
        BX = vertical size (char rows or pixel rows)
        DX = horizontal size (char cols or 8-pixel units)
        FFFFh MAGic busy, retry later
        BX,DX destroyed
    CX destroyed
SeeAlso: AX=0001h,AX=0005h,AX=0007h
--------a-490007-----------------------------
INT 49 - MAGic v1.16+ - GET SIZE OF MAGNIFICATION WINDOW
    AX = 0007h
Return: AX = status
        0000h successful
        BX = vertical size (char rows or pixel rows)
        DX = horizontal size (char cols or 8-pixel units)
        FFFEh invalid function
        FFFFh MAGic busy, retry later
        BX,DX destroyed
    CX destroyed
BUG:    in v1.16 and v1.17, this function is not recognized as valid, but
      AX=0000h is accepted and will branch into hyperspace
SeeAlso: AX=0001h,AX=0006h
--------a-490008-----------------------------
INT 49 - MAGic v1.23+ - SET TEXT MODE MAGNIFICATION SIZE
    AX = 0008h
    BX = scaling factor (01h=1.4 times, 02h, 04h, 06h, 08h, 09h=12 times)
Return: AX = status
        0000h successful
        FFFBh scaling factor only available in MAGic Deluxe
        FFFCh already in magnified state, can't set size
Notes:    this call specifies the amount a subsequent call to AX=0001h should
      magnify the display
    scaling factors greater than 2 are only available in MAGic Deluxe
SeeAlso: AX=0001h
--------V-4901-------------------------------
INT 49 - TI Professional PC - CRT - SET CURSOR SIZE AND TYPE
    AH = 01h
    CH = cursor start line (bits 3-0) and status (bits 6-5)
        status bits:
        00 non-blinking cursor
        01 no cursor
        10 fast-blinking cursor
        11 slow-blinking cursor
    CL = cursor end line
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=02h,AH=03h,INT 40"TI Professional",INT 48/AH=00h"TI Professional"
SeeAlso: INT 4A/AH=00h"TI",INT 4B"TI Professional",INT 4D/AH=00h
SeeAlso: INT 57"TI Professional"
--------V-4902-------------------------------
INT 49 - TI Professional PC - CRT - SET CURSOR POSITION
    AH = 02h
    DH = column
    DL = row
Return: DX destroyed
Notes:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
    the TI swaps the row and column compared to the equivalent IBM call
SeeAlso: AH=01h,AH=03h
--------V-4903-------------------------------
INT 49 - TI Professional PC - CRT - GET CURSOR POSTION AND TYPE
    AH = 03h
Return: CH = cursor start and status (see AH=01h)
    CL = cursor end line
    DH = cursor column
    DL = cursor row
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h
--------V-4906-------------------------------
INT 49 - TI Professional PC - CRT - SCROLL UP/COPY WINDOW
    AH = 06h
    AL = source blanking
        00h blank source region (move/scroll)
        nonzero do not blank source region (copy)
    DH,DL = source start column,row
    BH,BL = destination start column,row
    CH = width of region to move/copy
    CL = height of region to move/copy
Return: nothing
Notes:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
    the specified region may be wider than the screen, but reliable
      operation then requires that the height be exactly one row
SeeAlso: AH=01h,AH=02h,AH=07h,AH=13h,AH=14h
--------V-4907-------------------------------
INT 49 - TI Professional PC - CRT - SCROLL DOWN/COPY WINDOW
    AH = 07h
    AL = source blanking
        00h blank source region (move/scroll)
        nonzero do not blank source region (copy)
    DH,DL = source start column,row
    BH,BL = destination start column,row
    CH = width of region to move/copy
    CL = height of region to move/copy
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,AH=06h,AH=13h,AH=14h
--------V-4908-------------------------------
INT 49 - TI Professional PC - CRT - GET CHARACTER AND ATTRIBUTE AT POSITION
    AH = 08h
Return: AL = character at current cursor position
    AH = attribute
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=09h,AH=0Ah,AH=0Eh,INT 10/AH=08h
--------V-4909-------------------------------
INT 49 - TI Professional PC - CRT - WRITE CHARACTER(S) WITH ATTRIBUTE
    AH = 09h
    AL = character to write
    BL = attribute to use (becomes new current attribute)
    CX = number of times to write character
Return: nothing
Desc:    write CX copies of the character in AL beginning at the current cursor
      position
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=08h,AH=0Ah,AH=0Eh,INT 10/AH=09h
--------V-490A-------------------------------
INT 49 - TI Professional PC - CRT - WRITE CHARACTER(S) WITH CURRENT ATTRIBUTE
    AH = 0Ah
    AL = character to write
    CX = number of times to write character
Return: nothing
Desc:    write CX copies of the character in AL beginning at the current cursor
      position
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,AH=08h,AH=09h,AH=0Eh,INT 10/AH=0Ah
--------V-490E-------------------------------
INT 49 - TI Professional PC - CRT - TTY OUTPUT
    AH = 0Eh
    AL = character to write
Return: nothing
Desc:    write the character in AL at the current cursor position, advancing
      the cursor, and interpreting CR, LF, TAB, and BEL characters
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,AH=08h,AH=09h,AH=0Ah,INT 10/AH=0Eh
--------V-4910-------------------------------
INT 49 - TI Professional PC - CRT - WRITE BLOCK OF CHARACTERS WITH ATTRIBUTE
    AH = 10h
    AL = attribute (becomes new current attribute)
    DX:BX -> string of characters to write
    CX = length of string
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
BUG:    CX must not be 0000h on entry, or the system will crash
SeeAlso: AH=01h,AH=02h,AH=09h,AH=0Eh,AH=11h
--------V-4911-------------------------------
INT 49 - TI Professional PC - CRT - WRITE BLOCK OF CHARACTERS WITH CURR ATTRIB
    AH = 11h
    DX:BX -> string of characters to write
    CX = length of string
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
BUG:    CX must not be 0000h on entry, or the system will crash
SeeAlso: AH=01h,AH=02h,AH=09h,AH=0Eh,AH=10h
--------V-4912-------------------------------
INT 49 - TI Professional PC - CRT - FILL ENTIRE SCREEN WITH ATTRIBUTE
    AH = 12h
    AL = attribute (see #2465)
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h

Bitfields for TI Professional PC screen attribute:
Bit(s)    Description    (Table 2465)
 7    alternate character set (requires user-supplied ROM)
 6    blink
 5    underline
 4    reverse video
 3    character enable
 2    green (color) or 58% intensity (gray-scale)
 1    red (color)  or 27.5% intensity
 0    blue (color) or 14.5% intensity
--------V-4913-------------------------------
INT 49 - TI Professional PC - CRT - CLEAR ENTIRE TEXT SCREEN AND HOME CURSOR
    AH = 13h
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,AH=06h,AH=14h
--------V-4914-------------------------------
INT 49 - TI Professional PC - CRT - CLEAR ENTIRE GRAPHICS SCREEN
    AH = 14h
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,AH=06h,AH=13h
--------V-4915-------------------------------
INT 49 - TI Professional PC - CRT - SET PROTECTED STATUS AREA
    AH = 15h
    CL = row at which to start status area, or 00h to cancel
    CH = 00h
Return: nothing
Desc:    set a protected area of the screen which will not be affected by TTY
      writes or the scrolls they may generate
Notes:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
    the current cursor position must be above the status area in order to
      set the protected area
SeeAlso: AH=01h,AH=02h
--------V-4916-------------------------------
INT 49 - TI Professional PC - CRT - SET ATTRIBUTE LATCH
    AH = 16h
    BL = new attribute (see #2465)
Return: nothing
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h
--------V-4917-------------------------------
INT 49 - TI Professional PC - CRT - GET START-OF-DISPLAY POINTER
    AH = 17h
Return: DX = current offset at which display starts
Note:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
SeeAlso: AH=01h,AH=02h,INT 10/AH=FEh
--------V-4918-------------------------------
INT 49 - TI Professional PC - CRT - PRINT TTY STRING
    AH = 18h
    CS:BX -> counted string (count byte with length followed by string)
Return: nothing
Notes:    AH=00h,04h,05h,0Bh,0Ch,0Dh,0Fh are documented as NOPs
    the string must be located in the caller's code segment; any TSRs
      which want to hook INT 49 must check for this function and emulate
      it, because the BIOS retrieves the caller's CS from the stack
SeeAlso: AH=01h,AH=02h,AH=0Eh
--------B-4A---------------------------------
INT 4A C - SYSTEM - USER ALARM HANDLER
Desc:    This interrupt is invoked by the BIOS when a real-time clock alarm
      occurs; an application may use it to perform an action at a
      predetermined time.
Note:    this interrupt is called from within a hardware interrupt handler,
      so all usual precautions against reentering DOS must be taken
SeeAlso: INT 1A/AH=06h
--------h-4A---------------------------------
INT 4A - Z100 - Slave 8259 - S100 vectored line 2
SeeAlso: INT 49"Z100",INT 4B"Z100"
--------b-4A---------------------------------
INT 4A - Tandy 2000 - PRINT SCREEN
Note:    this interrupt is identical to INT 05
SeeAlso: INT 05"PRINT SCREEN"
--------O-4A---------------------------------
INT 4A - Acorn BBC Master 512 - "OSWORD" - MISC FUNCTIONS USING CONTROL BLOCK
    AL = function code
        FAh transfer data between 80186 and 65C12 I/O processor
    DS:BX -> control block (see #2466)
Return: FLAGS destroyed
    control block updated
Note:    there are more functions than are listed here, but details are not
      available
SeeAlso: INT 40"Acorn",INT 4B"Acorn",INT 4C"Acorn"

Format of BBC Master control block for function FAh:
Offset    Size    Description    (Table 2466)
 00h    BYTE    number of parameters sent to I/O processor (0Dh,0Eh)
 01h    BYTE    number of parameters read from I/O processor (01h)
 02h    DWORD    I/O processor address
 06h    DWORD    80186 segment:offset address
 0Ah    WORD    number of bytes to transfer
 0Ch    BYTE    operation type
        00h write to 65C12 at 24 us/byte
        01h read from 65C12 at 24 us/byte
        02h write to 65C12 at 26 us/word
        03h read from 65C12 at 26 us/word
        04h write to 65C12 at 10 us/byte using 256-byte blocks
        05h read from 65C12 at 10 us/byte using 256-byte blocks
 0Dh    BYTE    65C12 memory access control (only used if offset 00h = 0Eh)
        (see #2467)

Bitfields for 65C12 memory access control:
Bit(s)    Description    (Table 2467)
 7    unused
 6    always use main screen memory if I/O addr 3000h-7FFFh (overrides bit 5)
 5    use shadow screen memory if screen address specified
 4    use current ROM rather than ROM selected by bits 3-0 (only if I/O
      address between 8000h and BFFFh)
 3-0    paged ROM number
--------b-4A00-------------------------------
INT 4A - TI Professional PC - KEYBOARD - GET KEYPRESS
    AH = 00h
Return: AX = keystroke (AH=00h for ASCII keys -- no scan code)
SeeAlso: AH=01h,AH=02h,AH=03h,AH=04h,AH=05h,INT 16/AH=00h
SeeAlso: INT 47"TI Professional",INT 48/AH=00h"TI Professional"
SeeAlso: INT 49/AH=01h"TI",INT 4C"TI Professional",INT 4D/AH=00h
SeeAlso: INT 5B"TI Professional"
--------b-4A01-------------------------------
INT 4A - TI Professional PC - KEYBOARD - GET KEYBOARD STATUS
    AH = 01h
Return: ZF set if no keystroke available
    ZF clear if keystrokes in buffer
        AX = next keystroke (AH=00h for ASCII keys -- no scan code)
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=05h,INT 16/AH=01h
--------b-4A02-------------------------------
INT 4A - TI Professional PC - KEYBOARD - GET KEYBOARD MODE
    AH = 02h
Return: AL = shift states (see #2468)
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=05h,INT 16/AH=02h

Bitfields for TI Professional PC keyboard shift states:
Bit(s)    Description    (Table 2468)
 0    Ctrl key pressed
 1    Alt key pressed
 2    either Shift key pressed
 3-6    0
 7    CapsLock is ON
--------b-4A03-------------------------------
INT 4A - TI Professional PC - KEYBOARD - FLUSH KEYBOARD BUFFER
    AH = 03h
Return: nothing
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=05h
--------b-4A04-------------------------------
INT 4A - TI Professional PC - KEYBOARD - SEND COMMAND TO KEYBOARD
    AH = 04h
    AL = command
        00h reset to default states
        01h enable auto-repeat (default)
        02h disable auto-repeat
        03h lock keyboard
        04h unlock keyboard (default)
        05h enable keyclick (requires hardware modification to work)
        06h disable keyclick (default)
Return: nothing
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=05h
--------b-4A05-------------------------------
INT 4A - TI Professional PC - KEYBOARD - INSERT CHARACTER INTO KEYBOARD BUFFER
    AH = 05h
    BX = character code (BH=00h if ASCII character, BL=00h/BH nonzero for
          extended codes) (see #2469)
Return: ZF set if keyboard buffer was already full
    ZF clear if keystroke inserted into buffer
SeeAlso: AH=00h,AH=02h,AH=03h,AH=04h,AH=05h,INT 5B"TI"

(Table 2469)
Values for TI Professional PC scan/character codes:
 Scan    Key    Normal    Shift    Ctrl    Alt    Notes
 00h      -- unused
 01h    F5    3F00h    5800h    6200h    6C00h
 02h    F6    4000h    5900h    6300h    6D00h
 03h    F7    4100h    5A00h    6400h    6E00h
 04h    F8    4200h    5B00h    6500h    6F00h
 05h    F9    4300h    5C00h    6600h    7000h
 06h    F10    4400h    5D00h    6700h    7100h
 07h    F11    4500h    0800h    0A00h    0C00h
 08h    F12    4600h    0900h    0B00h    0D00h
 09h    1 !    0031h    0021h    ----    7800h
 0Ah    2 @    0032h    0040h    0300h    7900h
 0Bh    3 #    0033h    0023h    ----    7A00h
 0Ch    4 $    0034h    0024h    ----    7B00h
 0Dh    5 %    0035h    0025h    ----    7C00h
 0Eh    6 ^    0036h    005Eh    001Eh    7D00h
 0Fh    7 &    0037h    0026h    ----    7E00h
 10h    8 *    0038h    002Ah    ----    7F00h
 11h    9 (    0039h    0028h    ----    8000h
 12h    0 )    0030h    0029h    ----    8100h
 13h    - _    002Dh    005Fh    001Fh    8200h
 14h    = +    003Dh    002Bh    ----    8300h
 15h BACK SPACE 0008h    0008h    007Fh    ----
 16h    ` ~    0060h    007Eh    ----    ----
 17h    NUM =    003Dh    003Dh    003Dh    8C00h
 18h    NUM +    002Bh    002Bh    002Bh    8D00h
 19h   NUM SPAC    0020h    0020h    0020h    8E00h
 1Ah   NUM TAB    0009h    0F00h    0009h    8F00h
 1Bh    NUM 1    0031h    0031h    0031h    (alt-###)    [Note 5]
 1Ch    (unused)
 1Dh    NUM 0    0030h    0030h    0030h    (alt-###)    [Note 5]
 1Eh  NUM ENTER    000Dh    000Dh    000Dh    ----
 1Fh    NUM 4    0034h    0034h    0034h    (alt-###)    [Note 5]
 20h    NUM 5    0035h    0035h    0035h    (alt-###)    [Note 5]
 21h    NUM 9    0039h    0039h    0039h    (alt-###)    [Note 5]
 22h    NUM -    002Dh    002Dh    002Dh    ----
 23h    NUM 2    0032h    0032h    0032h    (alt-###)    [Note 5]
 24h-26h  -- unused
 27h    NUM 7    0037h    0037h    0037h    (alt-###)    [Note 5]
 28h    NUM 8    0038h    0038h    0038h    (alt-###)    [Note 5]
 29h    NUM 6    0036h    0036h    0036h    (alt-###)    [Note 5]
 2Ah    NUM ,    002Ch    002Ch    002Ch    ----
 2Bh    NUM 3    0033h    0033h    0033h    (alt-###)    [Note 5]
 2Ch    NUM .    002Eh    002Eh    002Eh    ----
 2Dh    PRINT    7200h    [Note2]    ----    ----    [Notes 1,2]
 2Eh   RtArrow    4D00h    8A00h    7400h    4E00h
 2Fh    INS    5200h    2800h    2900h    2A00h    [Note 1]
 30h    DEL    5300h    3800h    3900h    3A00h    [Note 1]
 31h    TAB    0009h    0F00h    0009h    ----
 32h    Q    0071h    0051h    0011h    1000h
 33h    W    0077h    0057h    0017h    1100h
 34h    E    0065h    0045h    0005h    1200h
 35h    R    0072h    0052h    0012h    1300h
 36h    T    0074h    0054h    0014h    1400h
 37h    Y    0079h    0059h    0019h    1500h
 38h    U    0075h    0055h    0015h    1600h
 39h    I    0069h    0049h    0009h    1700h
 3Ah    O    006Fh    004Fh    000Fh    1800h
 3Bh    P    0070h    0050h    0010h    1900h
 3Ch    [ {    005Bh    007Bh    001Bh    ----
 3Dh    ] }    005Dh    007Dh    001Dh    ----
 3Eh  LINE FEED    000Ah    000Ah    7500h    4F00h
 3Fh  BRK/PAUS    [Note3]    [Note4]    ----    ----    [Notes 1,3,4]
 40h  UpArrow    4800h    8800h    8400h    4900h
 41h    ESC    001Bh    001Bh    001Bh    ----
 42h    A    0061h    0041h    0001h    1E00h
 43h    S    0073h    0053h    0013h    1F00h
 44h    D    0064h    0044h    0004h    2000h
 45h    F    0066h    0046h    0006h    2100h
 46h    G    0067h    0047h    0007h    2200h
 47h    H    0068h    0048h    0008h    2300h
 48h    J    006Ah    004Ah    000Ah    2400h
 49h    K    006Bh    004Bh    000Bh    2500h
 4Ah    L    006Ch    004Ch    000Ch    2600h
 4Bh    ; :    003Bh    003Ah    ----    ----
 4Ch    ' "    0027h    0022h    ----    ----
 4Dh    RETURN    000Dh    000Dh    000Dh    ----
 4Eh    \ |    005Ch    007Ch    001Ch    ----
 4Fh  LeftArrow    4B00h    8B00h    7300h    4C00h
 50h    HOME    4700h    8600h    7700h    8500h
 51h  Space Bar    0020h    0020h    0020h    0020h
 52h    Z    007Ah    005Ah    001Ah    2C00h
 53h    X    0078h    0058h    0018h    2D00h
 54h    C    0063h    0043h    0003h    2E00h
 55h    V    0076h    0056h    0016h    2F00h
 56h    B    0062h    0042h    0002h    3000h
 57h    N    006Eh    004Eh    000Eh    3100h
 58h    M    006Dh    004Dh    000Dh    3200h
 59h    , <    002Ch    003Ch    ----    ----
 5Ah  PRINT    7200h    [Note2]    ----    ----    [Notes 1,2]
 5Bh    . >    002Eh    003Eh    ----    ----
 5Ch    / ?    002Fh    003Fh    ----    ----
 5Dh    (unused)
 5Eh    DEL    5300h    3800h    3900h    3A00h    [Note 1]
 5Fh    INS    5200h    2800h    2900h    2A00h    [Note 1]
 60h  DownArrow    5000h    8900h    7600h    5100h
 61h-63h  -- unused
 64h  BRK/PAUS    [Note3]    [Note4]    ----    ----    [Notes 1,3,4]
 65h    F1    3B00h    5400h    5E00h    6800h
 66h    F2    3C00h    5500h    5F00h    6900h
 67h    F3    3D00h    5600h    6000h    6A00h
 68h    F4    3E00h    5700h    6100h    6B00h
 69h-6Fh  -- unused
Notes:    [1] four of the keys can have differing scan codes, depending on the
      actual keyboard; the BIOS accepts either scan code ("normal": 2Fh,
      30h, 5Ah, 64h; "alternate": 2Dh,3Fh,5Eh,5Fh) for any of these keys
    [2] Shift-Print invokes INT 5E for a screen dump; the PRTSCRN.DEV
      device driver also supports Alt-Print, Ctrl-Print, Shift-Alt-Print,
      and Shift-Ctrl-Print for dumping graphics in various permutations
    [3] BRK/PAUS invokes INT 5C for a pause, then stuffs 0100h into the
      keyboard buffer
    [4] Shift-BRK/PAUS invokes INT 5D for the Break, then stuffs 0000h
      into the keyboard buffer; MS-DOS hooks INT 5D to keep the 0000h from
      appearing in the keyboard buffer
    [5] on the TI Pro, one enters an arbitrary character slightly
      differently than on a standard PC: exactly three numberpad digits
      must be pressed (using leading zeros for codes less than 100), and
      the key for the requested code is inserted into the keyboard buffer
      immediately on pressing the third key.  The Alt key may be released
      and re-pressed arbitrarily often between digits without affecting
      the Alt-digit-digit-digit sequence.
    scan codes with bit 7 set are not key releases, but rather
      auto-repeated keystrokes, which the BIOS only places into the
      keyboard buffer if the buffer is empty at the time (thus avoiding
      typeahead of repeated keystrokes faster than they can be processed)
SeeAlso: #0005 at INT 09
--------h-4B---------------------------------
INT 4B - Z100 - Slave 8259 - S100 vectored line 3
SeeAlso: INT 4A"Z100",INT 4C"Z100"
--------d-4B---------------------------------
INT 4B - Common Access Method SCSI interface (draft revision 1.9)
    ES:DI -> CAM Control Block (see #2484 at INT 4F/AX=8100h)
Notes:    the CAM committee moved the interface to INT 4F after revision 1.9
      to avoid conflicting with the IBM SCSI interface and the Virtual
      DMA specification
    the installation check for the driver is the string "SCSI_CAM" eight
      bytes past the INT 4Bh handler
    the only driver to date reported to use the CAM interface on INT 4B
      instead of INT 4F is from Future Domain (which has drivers for CAM
      on either interrupt)
SeeAlso: INT 4F/AX=8100h
Index:    installation check;Common Access Method SCSI interface
--------b-4B---------------------------------
INT 4B - Tandy 2000 - EQUIPMENT DETERMINATION
Return: AX = BIOS equipment list word (see #2470)
Note:    this interrupt is identical to INT 11 on the Tandy 2000
SeeAlso: INT 11"EQUIPMENT",INT 4A"Tandy 2000",INT 4C"Tandy 2000"

Bitfields for Tandy 2000 BIOS equipment list:
Bit(s)    Description    (Table 2470)
 0    reserved
 1    monochrome graphics installed
 2    graphics with color option installed
 3    floppy disk drive 1 installed
 4    floppy disk drive 2 installed
 5    hard disk drive 1 installed
 6    hard disk drive 2 installed
 7    unused
 8    black and white monitor
 9    color monitor
 12-10    reserved
 13    printer installed
 14    reserved
 15    unused
SeeAlso: #0136 at INT 11
--------O-4B---------------------------------
INT 4B - Acorn BBC Master 512 - "OSBYTE" - MISC FUNCTIONS USING REGISTER PARAMS
    AL = function code
    BL = first parameter
    BH = second parameter (if needed)
Return: BL = first return parameter
    BH = second return parameter
    CF depends on function
SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4C"Acorn"
--------b-4B00-------------------------------
INT 4B - TI Professional PC - PARALLEL PORT - OUTPUT CHARACTER
    AH = 00h
    DL = printer number (00h)
    AL = character to print
Return: AH = printer status (see #2471)
Note:    on the TI Pro, the BIOS only supports DL=00h; MS-DOS versions for the
      TI hook INT 4B and handle requests for DL<>00h
SeeAlso: AH=01h,AH=02h,INT 17/AH=00h
SeeAlso: INT 40"TI Professional",INT 48/AH=00h"TI Professional"
SeeAlso: INT 49/AH=01h"TI",INT 4C"TI Professional",INT 4D/AH=00h

Bitfields for TI Professional PC printer status:
Bit(s)    Description    (Table 2471)
 0    timeout (function 00h only)
 3-1    unused
 4    busy
 5    paper out
 6    on-line (selected)
 7    fault
--------b-4B01-------------------------------
INT 4B - TI Professional PC - PARALLEL PORT - INITIALIZE PRINTER
    AH = 01h
    DL = printer number (00h)
Return: AH = printer status (see #2471)
Note:    on the TI Pro, the BIOS only supports DL=00h; MS-DOS versions for the
      TI hook INT 4B and handle requests for DL<>00h
SeeAlso: AH=00h,AH=02h,INT 17/AH=01h
--------b-4B02-------------------------------
INT 4B - TI Professional PC - PARALLEL PORT - GET PRINTER STATUS
    AH = 02h
    DL = printer number (00h)
Return: AH = printer status (see #2471)
Note:    on the TI Pro, the BIOS only supports DL=00h; MS-DOS versions for the
      TI hook INT 4B and handle requests for DL<>00h
SeeAlso: AH=00h,AH=01h,INT 17/AH=02h
--------d-4B80-------------------------------
INT 4B - IBM SCSI interface
    AH = 80h
    AL = 00h-10h (Corel PowerSCSI INT4BCAM.SYS)
    further details not yet available
--------d-4B8102DX0000-----------------------
INT 4B - Virtual DMA Specification (VDS) - GET VERSION
    AX = 8102h
    DX = 0000h
Return: CF clear if successful
        AH = major version number
        AL = minor version number
        BX = product number (see #2472)
        CX = product revision number
        always 0000h for QMAPS and HPMM.SYS
        always 0001h for Microsoft's EMM386.EXE v4.20-4.41
        DX = flags (see #2474)
        SI:DI = maximum DMA buffer size
    CF set on error
        AL = error code (see #2473)
Note:    bit 5 of 0040h:007Bh is supposed to be set if VDS is supported; this is
      apparently not always the case
SeeAlso: INT 2C/AX=002Bh,INT 31/AX=0400h
Index:    installation check;Virtual DMA Spec

(Table 2472)
Values for VDS product number:
 0000h    for Quadtel's QMAPS and Hewlett-Packard's HPMM.SYS
 0001h    for Microsoft's EMM386.EXE
 0003h    for Windows 3.x WIN386.EXE
 0300h    OS/2 (all versions to date)
 0EDCh    for DR DOS 6.0 EMM386.SYS
 4560h    ("E`") for Qualitas' 386MAX
 4D43h    ("MC") for V Communications' Memory Commander
 5145h    ("QE") for Quarterdeck's QEMM-386
 524Dh    ("RM") for Helix's Netroom RM386

(Table 2473)
Values for VDS error code:
 01h    region not in contiguous memory
 02h    region crossed a physical alignment boundary
 03h    unable to lock pages
 04h    no buffer available
 05h    region too large for buffer
 06h    buffer currently in use
 07h    invalid memory region
 08h    region was not locked
 09h    number of physical pages greater than table length
 0Ah    invalid buffer ID
 0Bh    copy out of buffer range
 0Ch    invalid DMA channel number
 0Dh    disable count overflow
 0Eh    disable count underflow
 0Fh    function not supported
 10h    reserved flag bits set in DX

Bitfields for VDS flags:
Bit(s)    Description    (Table 2474)
 0    PC/XT bus (DMA in first megabyte only)
 1    physical buffer/remap region in first megabyte
 2    automatic remap enabled
 3    all memory is physically contiguous
 4-15    reserved (zero)
--------d-4B8103-----------------------------
INT 4B - Virtual DMA Specification - LOCK DMA REGION
    AX = 8103h
    DX = flags (see #2475)
    ES:DI -> DMA descriptor structure (see #2476,#2477,#2478)
Return: CF clear if successful
        DDS physical address field filled in
        DDS buffer ID field filled (0000h if no buffer allocated)
    CF set on error
        AL = error code (see #2473)
        DDS region size field filled wth maximum contiguous length in bytes
BUGS:    Windows 3.0 does not correctly support automatic remapping or copying
      in enhanced mode
    Windows 3.0 in enhanced mode does not return a correct code on error
SeeAlso: AX=8104h,AX=8105h

Bitfields for VDS flags:
Bit(s)    Description    (Table 2475)
 0    reserved (zero)
 1    data should be copied into buffer (ignored if 2 set)
 2    buffer should not be allocated if region noncontiguous or crosses
      physical alignment boundary specified by 4-5
 3    don't attempt automatic remap
 4    region must not cross 64K physical alignment boundary
 5    region must not cross 128K physical alignment boundary
 6-15    reserved (zero)

Format of DMA descriptor structure (DDS):
Offset    Size    Description    (Table 2476)
 00h    DWORD    region size
 04h    DWORD    offset
 08h    WORD    segment/selector
 0Ah    WORD    buffer ID
 0Ch    DWORD    physical address

Format of Extended DMA descriptor structure (EDDS):
Offset    Size    Description    (Table 2477)
 00h    DWORD    region size
 04h    DWORD    offset
 08h    WORD    segment/selector
 0Ah    WORD    reserved
 0Ch    WORD    number available
 0Eh    WORD    number used
 10h    DWORD    region 0 physical address
 14h    DWORD    region 0 size in bytes
 18h    DWORD    region 1 physical address
 1Ch    DWORD    region 1 size in bytes
    ...

Format of Extended DMA descriptor structure (EDDS) with page table entries:
Offset    Size    Description    (Table 2478)
 00h    DWORD    region size
 04h    DWORD    offset
 08h    WORD    segment/selector
 0Ah    WORD    reserved
 0Ch    WORD    number available
 0Eh    WORD    number used
 10h    DWORD    page table entry 0 (same as 80386 page table entry)
 14h    DWORD    page table entry 1
    ...
Note:    bits 1-11 of the page table entries should be zero; bit 0 set if page
      is present and locked
--------d-4B8104-----------------------------
INT 4B - Virtual DMA Specification - UNLOCK DMA REGION
    AX = 8104h
    DX = flags
        bit 0: reserved (zero)
        bit 1: data should be copied out of buffer
        bits 2-15 reserved (zero)
    ES:DI -> DMA descriptor structure (see #2476,#2477) with region size,
          physical address, and buffer ID fields set
Return: CF clear if successful
        DDS physical address field set
        DDS buffer ID field set (0000h if no buffer allocated)
    CF set on error
        AL = error code (see #2473)
        DDS region size field filled wth maximum contiguous length in bytes
Note:    Windows 3.0 does not check whether the region extends beyond the end of
      a segment
BUG:    Windows 3.0 in enhanced mode does not return a correct code on error
SeeAlso: AX=8103h,AX=8106h
--------d-4B8105-----------------------------
INT 4B - Virtual DMA Specification - SCATTER/GATHER LOCK REGION
    AX = 8105h
    DX = flags (see #2479)
    ES:DI -> Extended DMA descriptor structure (see #2477,#2478)
          region size, linear segment, linear offset, and number avail
          fields set
Return: CF clear if successful
        EDDS number used field set
        if DX bit 6 set, lower 12 bits of BX = offset in first page
    CF set on error
        AL = error code (see #2473)
        EDDS region size field filled with max length in bytes that can be
          locked and described in the EDDS table
BUG:    Windows 3.0 in enhanced mode may return zero instead of the physical
      page address for pages which were originally not present
SeeAlso: AX=8103h,AX=8106h

Bitfields for VDS flags:
Bit(s)    Description    (Table 2479)
 0-5    reserved (zero)
 6    EDDS should be returned with page table entries
 7    only present pages should be locked (not-present pages receive entry
      of 0000h)
 8-15    reserved (zero)
--------d-4B8106-----------------------------
INT 4B - Virtual DMA Specification - SCATTER/GATHER UNLOCK REGION
    AX = 8106h
    DX = flags (see #2480)
    ES:DI -> Extended DMA descriptor structure (see #2477,#2478) returned
          by AX=8105h
Return: CF clear if successful
    CF set on error
        AL = error code (see #2473)
Note:    according to the Microsoft version of the VDS specification, the
      actual scatter/gather list is ignored, while according to the IBM
      version of the specification, "the result of a LOCK operation"
      must be provided to this function
SeeAlso: AX=8104h,AX=8105h

Bitfields for VDS flags:
Bit(s)    Description    (Table 2480)
 0-5    reserved (zero)
 6    EDDS contains page table entries
 7    EDDS may contain not-present pages (entry = 0000h)
 8-15    reserved (zero)
--------d-4B8107-----------------------------
INT 4B - Virtual DMA Specification - REQUEST DMA BUFFER
    AX = 8107h
    DX = flags
        bit 0: reserved (zero)
        bit 1: data should be copied into buffer
        bits  2-15 reserved (zero)
    ES:DI -> DMA descriptor structure (see #2476) with region size set
          (also region offset and region segment if DX bit 1 set)
Return: CF clear if successful
        DDS physical address and buffer ID set
        DDS region size filled with length of buffer
    CF set on error
        AL = error code (see #2473)
SeeAlso: AX=8108h
--------d-4B8108-----------------------------
INT 4B - Virtual DMA Specification - RELEASE DMA BUFFFER
    AX = 8108h
    DX = flags
        bit 0: reserved (zero)
        bit 1: data should be copied out of buffer
        bits 2-15 reserved (zero)
    ES:DI -> DMA descriptor structure (see #2476,#2477) with buffer ID set
          (also region size/region offset/segment if DX bit 1 set)
Return: CF clear if successful
    CF set on error
        AL = error code (see #2473)
BUG:    under Windows 3.0 Enhanced mode, you must specify that data be copied
      for this function to work correctly
SeeAlso: AX=8107h
--------d-4B8109DX0000-----------------------
INT 4B - Virtual DMA Specification - COPY INTO DMA BUFFER
    AX = 8109h
    DX = 0000h
    ES:DI -> DMA descriptor structure (see #2476,#2477) with buffer ID,
          region segment/offset, and region size fields set
    BX:CX = starting offset into DMA buffer
Return: CF clear if successful
    CF set on error
        AL = error code (see #2473)
BUG:    Windows 3.0 Enhanced mode does not correctly interpret the copy count
SeeAlso: AX=810Ah
--------d-4B810ADX0000-----------------------
INT 4B - Virtual DMA Specification - COPY OUT OF DMA BUFFER
    AX = 810Ah
    DX = 0000h
    ES:DI -> DMA descriptor structure (see #2476,#2478) with buffer ID,
          region segment/offset, and region size fields set
    BX:CX = starting offset into DMA buffer
Return: CF clear if successful
    CF set on error
        AL = error code (see #2473)
BUG:    Windows 3.0 Enhanced mode does not correctly interpret the copy count
SeeAlso: AX=8109h
--------d-4B810B-----------------------------
INT 4B - Virtual DMA Specification - DISABLE DMA TRANSLATION
    AX = 810Bh
    BX = DMA channel number
    DX = 0000h
Return: CF clear if successful
    CF set on error
        AL = error code (see #2473)
SeeAlso: AX=810Ch
--------d-4B810C-----------------------------
INT 4B - Virtual DMA Specification - ENABLE DMA TRANSLATION
    AX = 810Ch
    BX = DMA channel number
    DX = 0000h
Return: CF clear if successful
        ZF set if disable count decremented to zero
    CF set on error
        AL = error code (see #2473)
SeeAlso: AX=810Bh
--------Q-4B810D-----------------------------
INT 4B - QEMM-386 - BUG
    AX = 810Dh
Note:    the code in QEMM v5.11 and 6.00 jumps to an invalid location on this
      call
--------h-4C---------------------------------
INT 4C - Z100 - Slave 8259 - S100 vectored line 4
SeeAlso: INT 4B"Z100",INT 4D"Z100"
--------b-4C---------------------------------
INT 4C - TI Professional PC - CLOCK/ANALOG INTERFACE
    no details available
SeeAlso: INT 40"TI Professional",INT 49/AH=01h"TI"
SeeAlso: INT 4A/AH=00h"TI",INT 4B"TI Professional",INT 4D/AH=00h
SeeAlso: INT 58"TI Professional"
--------b-4C---------------------------------
INT 4C - Tandy 2000 - GET MEMORY SIZE
Return: AX = kilobytes of contiguous memory starting at 0
Note:    this interrupt is identical to INT 12 on the Tandy 2000
SeeAlso: INT 12"BIOS",INT 4A"Tandy 2000",INT 4B"Tandy 2000",INT 51"Tandy 2000"
--------O-4C---------------------------------
INT 4C - Acorn BBC Master 512 - "OSCLI" - INTERPRET COMMAND LINE
    DS:BX -> CR-terminated command string
Return: FLAGS destroyed
SeeAlso: INT 40"Acorn",INT 4A"Acorn",INT 4B"Acorn"
--------h-4D---------------------------------
INT 4D - Z100 - Slave 8259 - S100 vectored line 5
SeeAlso: INT 4C"Z100",INT 4E"Z100"
--------B-4D00-------------------------------
INT 4D - TI Professional PC - DISK - RESET DISK SYSTEM
    AH = 00h
    DL = drive (if bit 7 is set both hard disks and floppy disks reset)
Return: AH = status (see #0144 at INT 13/AH=01h)
    CF clear if successful (returned AH=00h)
    CF set on error
Note:    this function is the same as INT 13/AH=00h on a standard PC BIOS
SeeAlso: AH=01h,AH=02h,AH=08h,AH=0Bh,INT 13/AH=00h,INT 46"TI Professional"
SeeAlso: INT 48/AH=00h"TI Professional",INT 4A/AH=00h"TI"
--------B-4D01-------------------------------
INT 4D - TI Professional PC - DISK - GET STATUS OF LAST OPERATION
    AH = 01h
    DL = drive (bit 7 set for hard disk)
Return: CF clear if status unchanged
    CF set if status changed since last call
    AH = 00h
    AL = status of previous operation (see #0144 at INT 13/AH=01h)
Notes:    this function is nearly the same as INT 13/AH=01h on a standard PC BIOS
    the TI's BIOS tranparently performs a number of retries, and an error
      status is only reported if all of the retries fail.  To get the error
      status if the operation succeeded on a retry, use AH=07h instead
SeeAlso: AH=00h,AH=07h,INT 13/AH=01h
--------B-4D02-------------------------------
INT 4D - TI Professional PC - DISK - READ SECTOR(S) INTO MEMORY
    AH = 02h
    AL = number of sectors to read (must be nonzero)
    CH = low eight bits of cylinder number
    CL = sector number 1-63 (bits 0-5)
         high two bits of cylinder (bits 6-7, hard disk only)
    DH = head number
    DL = drive number (bit 7 set for hard disk)
    ES:BX -> data buffer
Return: CF set on error
        if AH = 11h (corrected ECC error), AL = burst length
    CF clear if successful
    AH = status (see #0144 at INT 13/AH=01h)
    AL = number of sectors transferred
    ES:BX -> buffer for last sector processed (including one with errors)
SeeAlso: AH=00h,AH=01h,AH=03h,AH=04h,INT 13/AH=02h
--------B-4D03-------------------------------
INT 4D - TI Professional PC - DISK - WRITE SECTOR(S) FROM MEMORY
    AH = 03h
    AL = number of sectors to write (must be nonzero)
    CH = low eight bits of cylinder number
    CL = sector number 1-63 (bits 0-5)
         high two bits of cylinder (bits 6-7, hard disk only)
    DH = head number
    DL = drive number (bit 7 set for hard disk)
    ES:BX -> buffer containing data
Return: CF set on error
        if AH = 11h (corrected ECC error), AL = burst length
    CF clear if successful
    AH = status (see #0144 at INT 13/AH=01h)
    AL = number of sectors transferred
    ES:BX -> buffer for last sector processed (including one with errors)
SeeAlso: AH=00h,AH=01h,AH=02h,AH=04h,INT 13/AH=03h
--------B-4D04-------------------------------
INT 4D - TI Professional PC - DISK - VERIFY DISK SECTOR CRC(S)
    AH = 04h
    AL = number of sectors to verify (must be nonzero)
    CH = low eight bits of cylinder number
    CL = sector number 1-63 (bits 0-5)
         high two bits of cylinder (bits 6-7, hard disk only)
    DH = head number
    DL = drive number (bit 7 set for hard disk)
    ES:BX -> data buffer
Return: CF set on error
        if AH = 11h (corrected ECC error), AL = burst length
    CF clear if successful
    AH = status (see #0144 at INT 13/AH=01h)
    AL = number of sectors transferred
    ES:BX -> buffer for last sector processed (including one with errors)
Note:    even though no data is transferred, ES:BX must still be valid
SeeAlso: AH=00h,AH=01h,AH=02h,AH=06h,INT 13/AH=04h
--------B-4D05-------------------------------
INT 4D - TI Professional PC - DISK - NOP
    AH = 05h
Note:    on the TI Pro, FORMAT.COM contains direct port I/O commands to perform
      disk formatting, rather than using the BIOS
--------B-4D06-------------------------------
INT 4D - TI Professional PC - DISK - VERIFY DISK SECTOR(S)
    AH = 06h
    AL = number of sectors to verify (must be nonzero)
    CH = low eight bits of cylinder number
    CL = sector number 1-63 (bits 0-5)
         high two bits of cylinder (bits 6-7, hard disk only)
    DH = head number
    DL = drive number (bit 7 set for hard disk)
    ES:BX -> data buffer
Return: CF set on error
        if AH = 11h (corrected ECC error), AL = burst length
    CF clear if successful
    AH = status (see #0144 at INT 13/AH=01h)
    AL = number of sectors transferred
    ES:BX -> buffer for last sector processed (including one with errors)
Note:    even though no data is transferred, ES:BX must still be valid because
      an actual comparison with disk data is performed, not just the CRC
      check of the standard PC BIOS or INT 4D/AH=04h
SeeAlso: AH=00h,AH=01h,AH=02h,AH=04h,INT 13/AH=04h
--------B-4D07-------------------------------
INT 4D - TI Professional PC - DISK - GET RETRY STATUS OF LAST OPERATION
    AH = 07h
    DL = drive (bit 7 set for hard disk)
Return: CF clear if status unchanged
    CF set if status changed since last call
    AH = 00h
    AL = status of previous operation (see #0144 at INT 13/AH=01h)
Notes:    this function is nearly the same as INT 13/AH=01h on a standard PC BIOS
    the TI's BIOS tranparently performs a number of retries; this function
      returns the error status of a failed operation even if the operation
      succeeded on a retry
SeeAlso: AH=00h,AH=01h,INT 13/AH=01h
--------B-4D08-------------------------------
INT 4D - TI Professional PC - DISK - SET STANDARD DEVICE INTERFACE TABLE
    AH = 08h
    DL = drive number (00h-03h)
    AL = drive type
        00h single-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector)
        01h double-sided 48 tpi (40-track, 8 sectors, 512 bytes/sector)
        02h single-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector)
        03h double-sided 96 tpi (80-track, 8 sectors, 512 bytes/sector)
Return: nothing???
SeeAlso: AH=00h,AH=09h
--------B-4D09-------------------------------
INT 4D - TI Professional PC - DISK - SET DEVICE INTERFACE TABLE ADDRESS
    AH = 09h
    DL = drive number (00h-07h)
    ES:BX -> Device Interface Table (see #2481)
Return: nothing???
SeeAlso: AH=00h,AH=08h,AH=0Ah,INT 1E

Format of TI Professional PC Device Interface Table:
Offset    Size    Description    (Table 2481)
 00h    DWORD    -> entry point for disk routine
 04h    WORD    bytes per sector
 06h    BYTE    sectors per track
 07h    BYTE    number of heads
 08h    BYTE    number of cylinders
 09h    BYTE    retry count
 0Ah    BYTE    precompensation start
SeeAlso: #0671 at INT 1E
--------B-4D0A-------------------------------
INT 4D - TI Professional PC - DISK - GET DEVICE INTERFACE TABLE ADDRESS
    AH = 0Ah
    DL = drive number (00h-07h)
Return: AH = status
    ES:BX -> Device Interface Table (see #2481)
SeeAlso: AH=00h,AH=08h,AH=09h,INT 1E
--------B-4D0B-------------------------------
INT 4D - TI Professional PC - DISK - TURN OFF ALL DRIVES
    AH = 0Bh
Return: AH = 00h
Note:    used for diagnostics or to conserve power
SeeAlso: AH=00h
--------h-4E---------------------------------
INT 4E - Z100 - Slave 8259 - S100 vectored line 6
SeeAlso: INT 4D"Z100",INT 4F"Z100"
--------b-4E00-------------------------------
INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - SET BIOS DATE
    AH = 00h
    BX = number of days since January 1, 1980
Return: nothing
SeeAlso: AH=01h,AH=02h
SeeAlso: INT 40"TI Professional",INT 48/AH=00h"TI Professional"
SeeAlso: INT 4A/AH=00h"TI",INT 4F"TI Professional"
--------b-4E01-------------------------------
INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - SET BIOS TIME
    AH = 01h
    CH = hours
    CL = minutes
    DH = seconds
    DL = hundredths
Return: nothing
Note:    the BIOS does not validate the data passed to this function
SeeAlso: AH=00h,AH=02h
--------b-4E02-------------------------------
INT 4E - TI Professional PC - TIME-OF-DAY CLOCK - GET BIOS DATA AND TIME
    AH = 02h
Return: AX = number of days since January 1, 1980
    CH = hours
    CL = minutes
    DH = seconds
    DL = hundredths
SeeAlso: AH=00h,AH=01h
--------h-4F---------------------------------
INT 4F - Z100 - Slave 8259 - S100 vectored line 7
SeeAlso: INT 4E"Z100"
--------b-4F---------------------------------
INT 4F - TI Professional PC - SYSTEM CONFIGURATION CALL
Return: AX = system configuration word (see #2482)
    BX = size of contiguous DOS memory in paragraphs
SeeAlso: INT 11"BIOS",INT 12"BIOS",INT 40"TI Professional",INT 48/AH=09h
SeeAlso: INT 49/AH=01h"TI",INT 4B"TI Professional",INT 4D/AH=00h
SeeAlso: INT 4E"TI Professional"

Bitfields for TI Professional PC system configuration:
Bit(s)    Description    (Table 2482)
 0    floppy drive 0 (A:, internal) installed
 1    floppy drive 1 (B:, internal) installed
 2    floppy drive 2 (C:, external) installed
 3    floppy drive 3 (D:, external) installed
 4    drive A: is 96tpi (80 tracks)
 5    drive A: is double-sided
 6    60 Hz power instead of 50 Hz
 7    hard disk (E: or E:/F:) installed
 8    serial port 1 installed
 9    serial port 2 installed
 10    serial port 3 installed
 11    serial port 4 installed
 14-12    installed graphics RAM
    000 none (text-only system)
    001 bank A only (graphics limited to 2 of 8 colors)
    111 banks A/B/C (graphics supports 8 of 8 colors)
 15    clock/analog board installed
--------d-4F8100-----------------------------
INT 4F - Common Access Method SCSI interface rev 2.3 - SEND CCB TO XPT/SIM
    AX = 8100h
    ES:BX -> CAM Control Block (CCB) (see #2484)
Return: AH = status
        00h successful
        01h invalid CCB address (0000h:0000h)
Note:    the SCSI Interface Module (SIM) may complete the requested function
      and invoke the completion callback function before this call returns
SeeAlso: AX=8200h,INT 2F/AX=7F01h,INT 4B"Common Access Method"

(Table 2483)
Values for CAM function code:
 00h    NOP
 01h    execute SCSI I/O
 02h    get device type
 03h    path inquiry
 04h    release SIM queue
 05h    set async callback
 06h    set device type
 07h-0Fh reserved
 10h    abort SCSI command
 11h    reset SCSI bus
 12h    reset SCSI device
 13h    terminate I/O process
 14h-1Fh reserved
 20h    engine inquiry
 21h    execute engine request
 22h-2Fh reserved
 30h    enable logical unit number
 31h    execute target I/O
 32h-7Fh reserved
 80h-FFh vendor-specific functions

Format of CAM Control Block:
Offset    Size    Description    (Table 2484)
 00h    DWORD    physical address of this CCB
 04h    WORD    CAM control block length
 06h    BYTE    function code (see #2483)
 07h    BYTE    CAM status (see #2487)
 08h    BYTE    SCSI status
 09h    BYTE    path ID (FFh = XPT)
 0Ah    BYTE    target ID
 0Bh    BYTE    logical unit number
 0Ch    WORD    CAM flags (see #2485)
 0Eh    BYTE    CAM address flags (see #2486)
 0Fh    BYTE    target-mode flags (see #2488)
---function 02h---
 10h    DWORD    pointer to 36-byte buffer for inquiry data or 0000h:0000h
 14h    BYTE    peripheral device type of target logical unit number
---function 03h---
 10h    BYTE    version number (00h-07h prior to rev 1.7, 08h = rev 1.7,
        09h-FFh = rev no, i.e. 23h = rev 2.3)
 11h    BYTE    SCSI capabilities (see #2489)
 12h    BYTE    target mode support
        bit 7: processor mode
        bit 6: phase-cognizant mode
        bit 5-0: reserved
 13h    BYTE    miscellaneous flags
        bit 7: scanned high to low instead of low to high
        bit 6: removables not included in scan
        bit 5: inquiry data not kept by XPT
        bits 4-0: reserved
 14h    WORD    engine count
 16h 14 BYTEs    vendor-specific data
 24h    DWORD    size of private data area
 28h    DWORD    asynchronous event capabilities (see #2490)
 2Ch    BYTE    highest path ID assigned
 2Dh    BYTE    SCSI device ID of initiator
 2Eh  2 BYTEs    reserved
 30h 16 BYTEs    SIM vendor ID
 40h 16 BYTEs    HBA (host bus adaptor) vendor ID
 50h  4 BYTEs    operating-system dependant usage
---functions 00h,04h,11h,12h---
 no additional fields
---function 05h---
 10h    DWORD    asynchronous event enables (refer to function 03h above)
 14h    DWORD    pointer to asynchronous callback routine (see #2492)
 18h    DWORD    pointer to peripheral driver buffer
 1Ch    BYTE    size of peripheral buffer
---function 06h---
 10h    BYTE    peripheral device type of target
---functions 10h,13h---
 10h    DWORD    pointer to CCB to be aborted
---function 20h---
 10h    WORD    engine number
 12h    BYTE    engine type
        00h buffer memory
        01h lossless compression
        02h lossy compression
        03h encryption
 13h    BYTE    engine algorithm ID
        00h vendor-unique
        01h LZ1 variation 1 (STAC)
        02h LZ2 variation 1 (HP DCZL)
        03h LZ2 variation 2 (Infochip)
 14h    DWORD    engine memory size
---function 21h---
 10h    DWORD    pointer to peripheral driver
 14h  4 BYTEs    reserved
 18h    DWORD    OS-dependent request-mapping info
 1Ch    DWORD    address of completion callback routine
 20h    DWORD    pointer to scatter/gather list or data buffer
 24h    DWORD    length of data transfer
 28h    DWORD    pointer to engine buffer data
 2Ch  2 BYTEs    reserved
 2Eh    WORD    number of scatter/gather entries
 30h    DWORD    maximum destination data length
 34h    DWORD    length of destination data
 38h    DWORD    source residual length
 3Ch 12 BYTEs    reserved
 48h    DWORD    OS-dependent timeout value
 4Ch  4 BYTEs    reserved
 50h    WORD    engine number
 52h    WORD    vendor-unique flags
 54h  4 BYTEs    reserved
 58h  N BYTEs    private data area for SIM
---function 30h---
 10h    WORD    group 6 vendor-unique CDB length
 12h    WORD    group 7 vendor-unique CDB length
 14h    DWORD    pointer to target CCB list
 18h    WORD    number of target CCBs
---other functions---
 10h    DWORD    pointer to peripheral driver
 14h    DWORD    pointer to next CCB
 18h    DWORD    OS-dependent request mapping information
 1Ch    DWORD    address of completion callback routine (see #2491)
 20h    DWORD    pointer to scatter/gather list or data buffer
 24h    DWORD    length of data transfer
 28h    DWORD    pointer to sense info buffer
 2Ch    BYTE    length of sense info buffer
 2Dh    BYTE    CDB length
 2Eh    WORD    number of scatter/gather entries
        scatter/gather list is array of 2N DWORDs, each pair specifying
          the address and length of a data block
 30h  4 BYTEs    vendor-specific data
 34h    BYTE    (ret) SCSI status
 35h    BYTE    (ret) auto-sense residual length
 36h  2 BYTEs    reserved
 38h    DWORD    (ret) residual length
 40h 12 BYTEs    Command Descriptor Block (CDB) (see #3303,#3304,#3305)
 44h    DWORD    OS-dependent timeout value
 48h    DWORD    pointer to message buffer
 4Ch    WORD    length of message buffer
 4Eh    WORD    vendor-unique flags
 50h    BYTE    tag queue action
 51h  3 BYTEs    reserved
 54h  N BYTEs    private data area for SIM

Bitfields for CAM flags:
Bit(s)    Description    (Table 2485)
 0    CDB is a pointer
 1    tagged queue action enable
 2    linked CDB
 3    disable callback on completion
 4    scatter/gather
 5    disable autosense
 7-6    direction (00 reserved, 01 in, 10 out, 11 no data transfer)
 9-8    reserved
 10    engine synchronize
 11    SIM queue freeze
 12    SIM queue priority
    1 head insertion
    0 tail insertion (normal)
 13    disable synchronous transfers    \ mutually
 14    initiate synchronous transfers    / exclusive
 15    disable disconnect

Bitfields for CAM address flags:
Bit(s)    Description    (Table 2486)
 7    SG list/data (0 = host, 1 = engine)
 6    CDB pointer    (6-1: 0=virtual addr, 1=phys addr)
 5    SG list/data
 4    sense buffer
 3    message buffer
 2    next CCB
 1    callback on completion
 0    reserved

(Table 2487)
Values for CAM status:
 00h    request in progress
 01h    request successful
 02h    host aborted request
 03h    unable to abort request
 04h    request completed with error
 05h    CAM is busy
 06h    invalid request
 07h    invalid path ID
 08h    no such SCSI device
 09h    unable to terminate I/O process
 0Ah    timeout on target selection
 0Bh    timeout on command
 0Dh    receive message rejection
 0Eh    sent/received SCSI bus reset
 0Fh    detected uncorrectable parity error
 10h    Autosense request failed
 11h    no HBA detected
 12h    data over/underrun
 13h    bus freed unexpectedly
 14h    target bus phase sequence failure
 15h    CCB too small
 16h    requested capability not available
 17h    sent bus device reset
 18h    terminate I/O process
 38h    invalid LUN
 39h    invalid target ID
 3Ah    unimplemented function
 3Bh    nexus not established
 3Ch    invalid initiator ID
 3Dh    received SCSI Command Descriptor Block
 3Eh    LUN already enabled
 3Fh    SCSI bus busy
Note:    bit 6 set to indicate frozen SIM queue
    bit 7 set to indicate valid autosense

Bitfields for CAM target-mode flags:
Bit(s)    Description    (Table 2488)
 7    data buffer valid
 6    status valid
 5    message buffer valid
 4    reserved
 3    phase-cognizant mode
 2    target CCB available
 1    disable autodisconnect
 0    disable autosave/restore

Bitfields for SCSI capabilities:
Bit(s)    Description    (Table 2489)
 7    modify data pointers
 6    wide bus (32 bits)
 5    wide bus (16 bits)
 4    synchronous transfers
 3    linked commands
 2    reserved
 1    tagged queueing
 0    soft reset

Bitfields for CAM asynchronous event capabilities:
Bit(s)    Description    (Table 2490)
 31-24    vendor-specific
 23-8    reserved
 7    new devices found during rescan
 6    SIM module deregistered
 5    SIM module registered
 4    sent bus device reset to target
 3    SCSI AEN
 2    reserved
 1    unsolicited reselection
 0    unsolicited SCSI bus reset

Format of Six-Byte SCSI Command Descriptor Block (CDB):
Offset    Size    Description    (Table 3303)
 00h    BYTE    operation code (see #3306)
 01h    BYTE    logical unit number (bits 7-5), SCSI-1/SCSI-2
        MSB of logical block address (bits 4-0)
 02h    WORD    logical block address (low word)
 04h    BYTE    transfer length
 05h    BYTE    control byte
SeeAlso: #3304,#3305

Format of Ten-Byte SCSI Command Descriptor Block (CDB):
Offset    Size    Description    (Table 3304)
 00h    BYTE    operation code (see #3306)
 01h    BYTE    logical unit number (bits 7-5), SCSI-1/SCSI-2
        reserved in SCSI-3
 02h    DWORD    logical block address (low word)
 06h    BYTE    reserved
 07h    WORD    transfer length
 09h    BYTE    control byte
SeeAlso: #3303,#3305

Format of Twelve-Byte SCSI Command Descriptor Block (CDB):
Offset    Size    Description    (Table 3305)
 00h    BYTE    operation code (see #3306)
 01h    BYTE    logical unit number (bits 7-5), SCSI-1/SCSI-2
        reserved in SCSI-3
 02h    DWORD    logical block address (low word)
 06h    DWORD    transfer length
 0Ah    BYTE    reserved
 0Bh    BYTE    control byte
SeeAlso: #3303,#3304

(Table 3306)
Values for SCSI CDB operation code for direct-access devices:
 00h    Test Unit Ready
 01h    Rezero Unit
 03h    Request Sense
 04h    Format Unit
 07h    Reassign Blocks
 08h    Read (6-byte CDB)
 0Ah    Write (6-byte CDB)
 0Bh    Seek (6-byte CDB)
 12h    Inquiry
 15h    Mode Select (6-byte CDB)
 16h    Reserve
 17h    Release
 18h    Copy
 1Ah    Mode Sense (6-byte CDB)
 1Bh    Start/Stop Unit
 1Ch    Receive Diagnostic Results
 1Dh    Send Diagnostic
 1Eh    Prevent/Allow Medium Removal
 25h    Read Capacity
 28h    Read (10-byte CDB)
 2Ah    Write (10-byte CDB)
 2Bh    Seek (10-byte CDB)
 2Eh    Write and Verify
 2Fh    Verify
 30h    Search Data High
 31h    Search Data Equal
 32h    Search Data Low
 33h    Set Limits
 34h    Prefetch
 35h    Synchronize Cache
 36h    Lock/Unlock Cache
 37h    Read Defect Data
 39h    Compare
 3Ah    Copy and Verify
 3Bh    Write Buffer
 3Ch    Read Buffer
 3Eh    Read Long
 3Fh    Write Long
 40h    Change Definition
 41h    Write Same
 4Ch    Log Select
 4Dh    Log Sense
 55h    Mode Select (10-byte CDB)
 5Ah    Mode Sense (10-byte CDB)
SeeAlso: #3303,#3304,#3305

(Table 2491)
Values completion callback function is called with:
    interrupts disabled
    ES:BX -> completed CCB

(Table 2492)
Values asynchronous callback function is called with:
    AH = opcode
    AL = path ID generating callback
    DH = target ID causing event
    DL = LUN causing event
    CX = data byte count (if applicable)
    ES:BX -> data buffer (if applicable)
Return: all registers preserved
--------d-4F8200CX8765-----------------------
INT 4F - Common Access Method SCSI interface rev 2.3 - INSTALLATION CHECK
    AX = 8200h
    CX = 8765h
    DX = CBA9h
Return: AH = 00h if installed
        CX = 9ABCh
        DX = 5678h
        ES:DI -> "SCSI_CAM"
SeeAlso: AX=8100h,INT 4B"Common Access Method"
--------N-50---------------------------------
INT 50 - TIL Xpert AIM (X.25)
    AH = function
--------H-50---------------------------------
INT 50 - IRQ0 relocated by DESQview
Range:    INT 50 to INT F8, selected automatically
Notes:    this is the default location for older versions; DESQview v2.26+
      searches for unused ranges of interrupts and uses the lowest
      available range in its list for relocating these IRQs and the next
      lowest for relocating IRQ8-IRQ15
    a range of eight interrupts starting at a multiple of 8 is considered
      available if all vectors are identical and it has not been excluded
      with an /XB:nn commandline switch
    the list of ranges for v2.26 is 50h,58h,68h,78h,F8h (if < two of these
      are available, F8h and then 50h are used anyway)
    the list of ranges for v2.31+ is 68h,78h,88h-B8h,F8h (if < two of these
      are available, F8h and then F0h are used anyway)
SeeAlso: INT 08"IRQ0",INT 51"DESQview",INT 54"DESQview",INT 58"DESQview"
SeeAlso: INT D8"Screen Thief"
--------H-50---------------------------------
INT 50 - IRQ0 relocated by IBM 3278 emulation control program
SeeAlso: INT 51"IBM 3278"
--------H-50---------------------------------
INT 50 - IRQ0 relocated by OS/2 v1.x
SeeAlso: INT 51"OS/2"
----------50---------------------------------
INT 50 - TI Professional PC - FATAL SOFTWARE ERROR TRAP
Desc:    the default handler generates a System Error message and halts the
      computer such that only Ctrl-Alt-Del can restart operation
Note:    documented as "for system use only"; intended for multi-tasking
      software
SeeAlso: INT 40"TI Professional",INT 4F"TI Professional"
SeeAlso: INT 51"TI Professional",INT 53"TI Professional"
--------V-500000-----------------------------
INT 50 - Vanderaart TEXT WINDOWS, PC Thuis Shell - OPEN TEXT WINDOW
    AX = 0000h
    ES:BX -> name string or ES:0000h if none
    CH,CL = row,column of upper left corner
    DH,DL = row,column of lower right corner
Return: AX = window handle or
        0000h if not installed
        FFFFh on error
SeeAlso: AX=0001h,AX=0002h"TEXT WINDOWS"
--------V-500001-----------------------------
INT 50 - Vanderaart TEXT WINDOWS, PC Thuis Shell - CLOSE TEXT WINDOW
    AX = 0001h
    DI = window handle
SeeAlso: AX=0000h
--------V-500002-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - PUT CHARACTER IN WINDOW
    AX = 0002h
    BL = character
    BH = attribute
    DL = column
    DH = row
    DI = window handle
Return: AX = status
        0000h if successful
        FFFFh if outside window
SeeAlso: AX=0000h
--------l-500002-----------------------------
INT 50 - PC Thuis Organizer Shell - PLOT TEXT
    AX = 0002h
    ES:BX -> text string
    DH,DL = row,column of upper left corner
    DI = window handle
Return: AX = status
        0000h successful (text fits in window)
        FFFFh error
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
      published in the June/July 1990 issue of PC Thuis Power magazine
--------V-500003-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - OUTPUT LINE TO WINDOW
    AX = 0003h
    ES:BX -> text string
    CX = string length (0000h if ASCIZ string)
    DL = position (FFh centered, else flush left)
    DH = starting row
    DI = window handle
Return: AX = status
        0000h successful
        FFFFh did not fit in window
--------l-500003-----------------------------
INT 50 - PC Thuis Organizer Shell - WRITE FILE
    AX = 0003h
    ES:BX -> data to be written
    CX = number of bytes to write
    DS:SI -> filename
Return: AX = status
        0000h successful
        FFFFh error
SeeAlso: AX=0004h"Shell"
--------V-500004-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - GET KEY
    AX = 0004h
    CH = type
        00h any key
        01h 'J' or 'N' (Dutch for yes/no)
Return: AX = key
SeeAlso: INT 16/AH=00h
--------l-500004-----------------------------
INT 50 - PC Thuis Organizer Shell - READ FILE
    AX = 0004h
    ES:BX -> buffer for data
    CX = number of bytes to read or 0000h for entire file
    DL = file type
        01h setting shell
        02h setting sterm
        03h INT21 file
    DS:SI -> filename
Return: AX = status
        0000h successful
        FFFFh error
Note:    file type numbers are maintained by John Vanderaart; if a new file type
      is needed, a type number should be requested from him through the
      magazine:
        PC Thuis BV
        Spaarne 55
        2011 CE HAARLEM
        The Netherlands
SeeAlso: AX=0003h"Shell"
--------V-500005-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - CHANGE ATTRIBUTE
    AX = 0005h
    BL = new attribute
    CH,CL = row,column of upper left corner
    DH,DL = row,column of lower right corner
    DI = window handle
--------l-500005-----------------------------
INT 50 - PC Thuis Organizer Shell - PROMPT YES/NO
    AX = 0005h
    ES:BX -> prompt string (ES:0000h if no prompt)
Return: AX = key pressed
        0000h "J" (Dutch "Ja" = "Yes")
        FFFFh "N" (Dutch "Nee" = "No")
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
      published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: AX=0008h"PC Thuis"
--------V-500006-----------------------------
INT 50 - Vanderaart TEXT WINDOWS - EDIT LINE IN WINDOW
    AX = 0006h
    ES:BX -> text string
    CH = type of input (see #2493)
    DH,DL = row,column of upper left corner
    DI = window handle
Return: AX = key which terminated entry
        0000h Enter
        0001h Esc
        0002h Down arrow
        0003h Up arrow
        0004h F10

(Table 2493)
Values for type of input to Vanderaart Text Windows:
 00h    everything
 01h    uppercase only
 02h    positive numbers
 03h    Dutch postal code ("9999 AA")
 04h    'J' or 'N' (Dutch yes/no)
 05h    telephone or FAX number
 06h    positive or negative number
 07h    date (dd/mm/yy)
 08h    money
 09h    '1' through '8'
 0Ah    '1' through '4'
 0Bh    uppercase filenames
--------l-500006-----------------------------
INT 50 - PC Thuis Organizer Shell - ALERT USER
    AX = 0006h
    ES:BX -> string
--------l-500007-----------------------------
INT 50 - PC Thuis Organizer Shell - DO LINE
    AX = 0007h
    ES:BX -> text string
    CX = string length in bytes (0000h if NUL-terminated)
    DL = FFh to center string, else flush left
    DH = upper left row
    DI = window handle
Return: AX = status
        0000h successful
        FFFFh error
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
      published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: AX=0008h
--------l-500008-----------------------------
INT 50 - PC Thuis Organizer Shell - DO MENU
    AX = 0008h
    ES:BX -> menu structure
Return: AL = index 1 or FFh if not selected
    AH = index 2 or FFh if not selected
    BL = index 3 or FFh if not selected
    BH = index 4 or FFh if not selected
SeeAlso: AX=0005h"PC Thuis",AX=0007h,AX=000Ch
--------l-500009-----------------------------
INT 50 - PC Thuis Organizer Shell - MESSAGE ON
    AX = 0009h
    ES:BX -> message string
SeeAlso: AX=000Ah
--------l-50000A-----------------------------
INT 50 - PC Thuis Organizer Shell - MESSAGE OFF
    AX = 000Ah
SeeAlso: AX=0009h
--------l-50000B-----------------------------
INT 50 - PC Thuis Organizer Shell - CHANGE ATTRIBUTE
    AX = 000Bh
    BL = new attribute
    CH,CL = row,column of upper left corner
    DH,DL = row,column of lower right corner
    DI = window handle
--------l-50000C-----------------------------
INT 50 - PC Thuis Organizer Shell - DO REQUEST
    AX = 000Ch
    ES:BX -> request structure
Return: AX = status
        0000h confirmed
        FFFFh denied
SeeAlso: AX=0008h
--------l-50000D-----------------------------
INT 50 - PC Thuis Organizer Shell - EDIT LINE
    AX = 000Dh
    ES:BX -> text string
    CL = length
    CH = input type (see #2494)
    DH,DL = row,column of upper left corner
    DI = window handle
Return: AX = result code
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
      published in the June/July 1990 issue of PC Thuis Power magazine

Bitfields for input type:
Bit(s)    Description    (Table 2494)
 0    force uppercase
 1    integer
 2    no spaces allowed
 3    no cursor keys
--------l-50000E-----------------------------
INT 50 - PC Thuis Organizer Shell - PLOT CHARACTER
    AX = 000Eh
    BL = character
    BH = attribute
    DH,DL = row,column at which to plot
    DI = window handle
Return: AX = status
        0000h successful
        FFFFh errror
--------l-50000F-----------------------------
INT 50 - PC Thuis Organizer Shell - EMPTY WINDOW
    AX = 000Fh
    BL = character
    BH = attribute
    DI = window handle
--------l-500010-----------------------------
INT 50 - PC Thuis Organizer Shell - TRACE MENU
    AX = 0010h
    ES:BX -> first menu structure
    CL = hotkey to look up
Return: AL = index 1 or FFh if not selected
    AH = index 2 or FFh if not selected
    BL = index 3 or FFh if not selected
    BH = index 4 or FFh if not selected
Index:    hotkeys;PC Thuis Organizer Shell
--------l-500011-----------------------------
INT 50 - PC Thuis Organizer Shell - MOVE MEMORY
    AX = 0011h
    DS:SI -> source
    ES:DI -> destination
    CX = number of bytes to move (0000h = until NUL string terminator???)
SeeAlso: AX=0012h
--------l-500012-----------------------------
INT 50 - PC Thuis Organizer Shell - COMPARE MEMORY
    AX = 0012h
    DS:SI -> source
    ES:DI -> destination
    CX = number of bytes to compare (0000h=until NUL string terminator???)
Return: AX = status
        0000h same
        FFFFh different
SeeAlso: AX=0011h
--------l-500013-----------------------------
INT 50 - PC Thuis Organizer Shell - GET KEY
    AX = 0013h
    CH = type flags
        bit 0: force uppercase
        bit 1: integer
        bit 2: no spaces
Return: AX = keystroke
--------l-500014-----------------------------
INT 50 - PC Thuis Organizer Shell - SCROLL WINDOW
    AX = 0014h
    BL = direction
        06h up
        07h down
    BH = attribute
    DI = window handle
SeeAlso: INT 10/AH=06h,INT 10/AH=07h
--------l-500015-----------------------------
INT 50 - PC Thuis Organizer Shell - GET MEMORY HANDLE
    AX = 0015h
    BL = handle size
        00h 65536 bytes (64K)
        01h 65535 bytes (64K-1)
        02h 32768 bytes (32K)
        03h 32767 bytes (32K-1)
Return: AX = segment
Program: The PC Thuis Organizer Shell was written by John Vanderaart and
      published in the June/July 1990 issue of PC Thuis Power magazine
SeeAlso: INT 21/AH=48h
--------H-51---------------------------------
INT 51 - IRQ1 relocated by DESQview
Range:    INT 51 to INT F9, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-51---------------------------------
INT 51 - IRQ1 relocated by IBM 3278 emulation control program
SeeAlso: INT 50"IBM 3278",INT 54"IBM 3278"
--------H-51---------------------------------
INT 51 - IRQ1 relocated by OS/2 v1.x
SeeAlso: INT 50"OS/2",INT 54"OS/2"
----------51---------------------------------
INT 51 - TI Professional PC - RESTART TIMING EVENT
    AX = timer count in 25ms intervals
    DS:DI -> timing-event table (see #2495)
Note:    documented as "for system use only"; intended for multi-tasking
      software
SeeAlso: INT 50"TI Professional",INT 52"TI Professional"

Format of TI Professional PC timing event table:
Offset    Size    Description    (Table 2495)
 00h    WORD    offset of next event table entry
 02h    BYTE    normally unused (FFh)
 03h    BYTE    flags:
        bit 7 set if timing event active
        bits 6-0 not used by BIOS (0), but could be used by option ROMs
 04h    WORD    timeout count (decremented every 25ms when active)
 06h    WORD    offset of event handler (in segment F400h) to call on event
          timeout; the F400h segment allows addressing both system ROMs
          and the first 16K of memory (due to the 1M memory wraparound)
--------b-51---------------------------------
INT 51 - Tandy 2000 - KEYBOARD SERVICES
Note:    this interrupt is identical to INT 16 on Tandy 2000
SeeAlso: INT 16/AH=00h,INT 16/AH=01h,INT 16/AH=02h,INT 16/AH=04h"Tandy"
SeeAlso: INT 16/AH=04h,INT 4A"Tandy 2000",INT 4C"Tandy 2000",INT 52"Tandy 2000"
--------H-52---------------------------------
INT 52 - IRQ2 relocated by DESQview
Range:    INT 52 to INT FA, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-52---------------------------------
INT 52 - IRQ2 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 50"IBM 3278",INT 51"OS/2"
----------52---------------------------------
INT 52 - TI Professional PC - CANCEL TIMING EVENT
    DS:DI -> timing-event table (see #2495)
Note:    documented as "for system use only"; intended for multi-tasking
      software
SeeAlso: INT 51"TI Professional",INT 53"TI Professional"
--------b-52---------------------------------
INT 52 - Tandy 2000 - VIDEO SERVICES
Note:    this interrupt is identical to INT 10
SeeAlso: INT 10/AH=00h,INT 10/AH=01h,INT 10/AH=08h,INT 10/AH=0Eh
SeeAlso: INT 4A"Tandy 2000",INT 51"Tandy 2000",INT 53"Tandy 2000"
--------H-53---------------------------------
INT 53 - IRQ3 relocated by DESQview
Range:    INT 53 to INT FB, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 54"DESQview",INT 58"DESQview"
--------H-53---------------------------------
INT 53 - IRQ3 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 50"IBM 3278",INT 51"OS/2"
----------53---------------------------------
INT 53 - TI Professional PC - SVC INTERFACE
Notes:    documented as "for system use only"; intended for multi-tasking
      software
    this interrupt is not used by the BIOS; the default handler generates
      a system error trap (see INT 51"TI Professional")
SeeAlso: INT 50"TI Professional",INT 54"TI Professional"
--------b-53---------------------------------
INT 53 - Tandy 2000 - SERIAL COMMUNICATIONS
Note:    this interrupt is identical to INT 14 on Tandy 2000
SeeAlso: INT 14/AH=00h"SERIAL",INT 14/AH=01h,INT 14/AH=02h,INT 14/AH=03h
SeeAlso: INT 14/AH=04h"Tandy 2000",INT 52"Tandy 2000",INT 54"Tandy 2000"
--------N-53---------------------------------
INT 53 - WEB??? - API
    BX = function
        0000h ???
        AX = ???
        Return: AX = ???
        0004h ???
        0009h ???
        0015h
        AX = ???
        DX = ???
        0017h
Return: ???
Notes:    the installation check consists of looking for the signature "WEBCO"
      immediately prior to the interrupt handler
    the above calls are made by Show Partner F/X v3.6 (see INT 10/AH=53h)
Index:    installation check;unknown|installation check;WEBCO
--------H-54---------------------------------
INT 54 - IRQ4 relocated by DESQview
Range:    INT 54 to INT FC, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-54---------------------------------
INT 54 - IRQ4 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
----------54---------------------------------
INT 54 - TI Professional PC - ACTIVATE TASK SUBROUTINE
Notes:    documented as "for system use only"; intended for multi-tasking
      software
    this interrupt is not used by the BIOS; the default handler generates
      a system error trap (see INT 51"TI Professional")
SeeAlso: INT 50"TI Professional",INT 53"TI Professional"
--------b-54---------------------------------
INT 54 - Tandy 2000 - LINE PRINTER
Note:    this interrupt is identical to INT 17 on Tandy 2000
SeeAlso: INT 17/AH=00h,INT 17/AH=01h,INT 17/AH=02h,INT 4A"Tandy 2000"
SeeAlso: INT 53"Tandy 2000",INT 55"Tandy 2000"
--------X-545400-----------------------------
INT 54 U - Toshiba PCMCIA2 - INSTALLATION CHECK
    AX = 5400h
Return: AX = 0054h if installed
        CX:DX -> INT function handler
--------H-55---------------------------------
INT 55 - IRQ5 relocated by DESQview
Range:    INT 55 to INT FD, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-55---------------------------------
INT 55 - IRQ5 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-55---------------------------------
INT 55 - TI Professional PC - RESERVED FOR FUTURE USE
Notes:    documented as "for system use only"; intended for multi-tasking
      software
    this interrupt is not used by the BIOS; the default handler generates
      a system error trap (see INT 51"TI Professional")
SeeAlso: INT 50"TI Professional",INT 56"TI Professional"
--------b-55---------------------------------
INT 55 - Tandy 2000 - SYSTEM CLOCK
Note:    this interrupt is identical to INT 1A on Tandy 2000
SeeAlso: INT 1A/AH=00h,INT 1A/AH=01h,INT 1A/AH=02h"Tandy 2000"
SeeAlso: INT 1A/AH=03h"Tandy 2000",INT 54"Tandy 2000",INT 56"Tandy 2000"
--------H-56---------------------------------
INT 56 - IRQ6 relocated by DESQview
Range:    INT 56 to INT FE, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-56---------------------------------
INT 56 - IRQ6 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-56---------------------------------
INT 56 - TI Professional PC - RESERVED FOR FUTURE USE
Notes:    documented as "for system use only"; intended for multi-tasking
      software
    this interrupt is not used by the BIOS; the default handler generates
      a system error trap (see INT 51"TI Professional")
SeeAlso: INT 50"TI Professional",INT 55"TI Professional"
--------b-56---------------------------------
INT 56 - Tandy 2000 - FLOPPY DISK SERVICES
Note:    this interrupt is identical to INT 13 on Tandy 2000
SeeAlso: INT 13/AH=00h,INT 13/AH=01h,INT 13/AH=02h,INT 13/AH=03h
SeeAlso: INT 4A"Tandy 2000",INT 51"Tandy 2000",INT 55"Tandy 2000"
--------H-57---------------------------------
INT 57 - IRQ7 relocated by DESQview
Range:    INT 57 to INT FF, selected automatically
Note:    this is the default location for older versions; see INT 50"DESQview"
      for details of interrupt relocation
SeeAlso: INT 50"DESQview",INT 58"DESQview"
--------H-57---------------------------------
INT 57 - IRQ7 relocated by IBM 3278 emulation control program, OS/2 v1.x
SeeAlso: INT 51"IBM 3278",INT 51"OS/2"
--------b-57---------------------------------
INT 57 C - TI Professional PC - CRT MAPPING HOOK
    AX/BX/CX/DX/BP/SI/DI same as on entry to CRT subroutine (e.g. INT 49)
    DS = BIOS system segment
    ES = DE00h
Return: DF/IF flags must be preserved
    ES,DS,BP preserved
    AX,BX,CX,DX,SI,DI may be changed as necessary to modify the original
      call
Desc:    hooking this vector permits programs to intercept or modify all
      screen output, including both application calls to INT 49 and
      calls generated internally by the BIOS which bypass INT 49
Note:    by default, this vector points at an IRET instruction
SeeAlso: INT 49/AH=01h"TI",INT 50"TI Professional"
--------H-58---------------------------------
INT 58 - IRQ8 relocated by DESQview 2.26+
Range:    INT 58 to INT F8, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 59"DESQview",INT 70
--------H-58---------------------------------
INT 58 - IRQ0 relocated by DoubleDOS
SeeAlso: INT 08
--------b-58---------------------------------
INT 58 C - TI Professional PC - SYSTEM TIMER 25ms HOOK
Desc:    called from the hardware timer tick interrupt, after executing the
      first four BIOS timing events, updating the system clock, invoking
      INT 5A if required, saving registers, and switching to a temporary
      stack (the one reserved for IRQ3)
Notes:    the handler for this interrupt may destroy AX,BX,DI,ES but must
      preserve all other registers; 8 WORDs of stack space are available,
      of which at most 4 may be used if the handler enables interrupts
    if the handler switches stacks (because more than 4/8 WORDs are
      required), the original stack must be restored before chaining to
      the previous handler
SeeAlso: INT 43"TI Professional",INT 4C"TI Professional"
SeeAlso: INT 5A"TI Professional"
--------H-59---------------------------------
INT 59 - IRQ9 relocated by DESQview 2.26+
Range:    INT 59 to INT F9, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 58"DESQview",INT 5A"DESQview",INT 71
--------H-59---------------------------------
INT 59 - IRQ1 relocated by DoubleDOS
SeeAlso: INT 09
--------b-59---------------------------------
INT 59 - TI Professional PC - COMMON ROM HARDWARE INTERRUPT EXIT VECTOR
Desc:    all hardware interrupts on the TI Pro jump indirectly to the handler
      pointed at by this interrupt vector to finish their handling of
      the hardware interrupt
Notes:    the default handler decrements the interrupt count, restores registers
      (including the stack pointer), sends an EOI to the interrupt
      controller, and finally does an IRET
    can be used by multitaskers which need to get control after every
      hardware interrupt
SeeAlso: INT 40"TI Professional",INT 47"TI Professional"
SeeAlso: INT 53"TI Professional"
--------V-59---------------------------------
INT 59 - GSS Computer Graphics Interface (GSS*CGI)
    DS:DX -> block of 5 array pointers
Return: CF set on error
        AX = error code
    CF clear if successful
        AX = return code
Note:    INT 59 is the means by which GSS*CGI language bindings communicate with
      GSS*CGI device drivers and the GSS*CGI device driver controller.
    also used by the IBM Graphic Development Toolkit
--------H-5A---------------------------------
INT 5A - IRQ10 relocated by DESQview 2.26+
Range:    INT 5A to INT FA, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 59"DESQview",INT 5B"DESQview",INT 72
--------H-5A---------------------------------
INT 5A - IRQ2 relocated by DoubleDOS
SeeAlso: INT 0A"IRQ2"
--------N-5A---------------------------------
INT 5A - PC Cluster adapter BIOS entry address
    ???
Return: ???
SeeAlso: INT 5B"PC Cluster"
--------b-5A---------------------------------
INT 5A - TI Professional PC - SYSTEM TIMER 100ms HOOK
Desc:    called from the hardware timer tick interrupt, after executing the
      first four BIOS timing events, updating the system clock, saving
      registers, and switching to a temporary stack (the one reserved
      for IRQ3), but before calling INT 58
    no details available
Notes:    this interrupt is invoked on every fourth timer interrupt
    the handler for this interrupt may destroy AX,BX,DI,ES but must
      preserve all other registers; 8 WORDs of stack space are available,
      of which at most 4 may be used if the handler enables interrupts
    if the handler switches stacks (because more than 4/8 WORDs are
      required), the original stack must be restored before chaining to
      the previous handler
SeeAlso: INT 43"TI Professional",INT 4C"TI Professional"
SeeAlso: INT 58"TI Professional"
--------H-5B---------------------------------
INT 5B - IRQ11 relocated by DESQview 2.26+
Range:    INT 5B to INT FB, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5A"DESQview",INT 5C"DESQview",INT 73
--------H-5B---------------------------------
INT 5B - IRQ3 relocated by DoubleDOS
SeeAlso: INT 0B
--------N-5B---------------------------------
INT 5B - PC cluster adapter - RELOCATED INT 19
SeeAlso: INT 19,INT 5A"PC Cluster"
--------N-5B---------------------------------
INT 5B - AT&T Starlan Extended NetBIOS (variable length names)
    ES:BX -> Network Control Block (see #2496)
Return: AL = status (see #2499)
SeeAlso: INT 5C"NetBIOS"

Format of Starlan Network Control Block:
Offset    Size    Description    (Table 2496)
 00h    BYTE    ncb_command (see also #2501)
        70h send net Break
 01h    BYTE    ncb_retcode
 02h    BYTE    ncb_lsn
 03h    BYTE    ncb_num
 04h    DWORD    -> ncb_buffer
 08h    WORD    ncb_length
 0Ah 16 BYTEs    ncb_callname
 1Ah 16 BYTEs    ncb_name
 2Ah    BYTE    ncb_rto
 2Bh    BYTE    ncb_sto
 2Ch    DWORD    -> ncb_post    /* int (far *ncb_post)(); */
 30h    BYTE    ncb_lana_num
 31h    BYTE    ncb_cmd_cplt
 32h    DWORD    -> ncb_vname
 36h    BYTE    ncb_vnamelen
 37h  9 BYTEs    ncb_reserve
Note:    fields 00h-31h are the same as for a standard NetBIOS NCB (see #2500)
--------N-5B---------------------------------
INT 5B - Microsoft Network Transport Layer Interface
Note:    used by MS-NET for executing network commands
SeeAlso: INT 5C"NetBIOS"
--------N-5B---------------------------------
INT 5B - used by Alloy NTNX
--------N-5B---------------------------------
INT 5B - ISOLAN Multi Protocol Software
    ES:BX -> Transfer Control Block (see #2497)
Return: AL = status
Note:    this software interface allows multiple protocols/software packages
      to access a BICC 411x network card

Format of ISOLAN Transfer Control Block:
Offset    Type    Description    (Table 2497)
 00h    BYTE    command code
        B3h Status
        F2h Activate
        F3h Deactivate
        F4h Send Data
 01h    BYTE    command identity
 02h    BYTE    virtual circuit ID
 03h    WORD    buffer length
 05h    DWORD    buffer pointer
 09h    BYTE    expedited data flag
 0Ah    BYTE    cancelable flag
 0Bh 16 BYTEs    local network address
 1Bh 16 BYTEs    remote network address
 2Bh    DWORD    asynchronous notification routine
 30h    DWORD    local network number
 34h    DWORD    remote network number
 38h    BYTE    call timeout
 39h    BYTE    not used
 3Ah  8 BYTEs    reserved
 42h    BYTE    command code extension
 43h    WORD    Blue Book MAC type
--------b-5B---------------------------------
INT 5B C - TI Professional PC - KEYBOARD MAPPING HOOK
    CF set
    AH = shift state (see #2498)
    AL = scan code (see #2469)
Return:    BX, CX, DI, ES may be destroyed
    various return methods are supported:
        IRET, AX unchanged: process keystroke normally
        IRET, AL = FFh: discard keystroke
        IRET, AX changed: process modified keystroke
        chain to old INT 5B: allow other handlers to look at (possibly
          modified) keystroke in AX
        RETF 2, CF clear: place returned AX into keyboard buffer without
          any further processing
Notes:    invoked by the keyboard ISR, and used to remap the keyboard
    if CF is clear on entry, some other handler has processed the
      keystroke and the current handler should not modify it, instead
      performing a RETF 2 or IRET (after clearing CF on the stack)
    when requesting that a value be placed directly into the keyboard
      buffer, AL and AH may not *both* be nonzero (the TI does not
      return scan codes as part of the key code for non-extended keys)
SeeAlso: INT 15/AH=4Fh,INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5C"TI Professional",INT 5D"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"

Bitfields for TI Professional PC keyboard mapping hook shift states:
Bit(s)    Description    (Table 2498)
 7    CAPS LOCK is on
 6-4    reserved (0)
 3    repeated key
 2    Shift is pressed
 1    Alt is pressed
 0    Ctrl is pressed
--------U-5B5254DL04-------------------------
INT 5B U - SitBack v3.02R - GET ???
    AX = 5254h
    DL = 04h
Return: ES:BX -> ??? in resident portion
Program: SitBack is a background file backup utility by SitBack Technologies,
      Inc. which initiates backups whenever the system is idle
SeeAlso: AX=8485h/DL=71h,AX=8485h/DL=72h
--------U-5B8485DL70-------------------------
INT 5B U - SitBack v3.02R - INSTALLATION CHECK
    AX = 8485h
    DL = 70h
Return: CX = 8485h if installed
        DX:AX -> ??? (configuration data?)
Program: SitBack is a background file backup utility by SitBack Technologies,
      Inc. which initiates backups whenever the system is idle
SeeAlso: AX=5254h/DL=04h,AX=8485h/DL=78h
--------U-5B8485DL71-------------------------
INT 5B U - SitBack v3.02R - SET ??? FLAG AND GET ??? ADDRESS
    AX = 8485h
    DL = 71h
Return: ES:BX -> FAR entry point to ???
Note:    the flag which is modified is located at the address returned by
       AX=5254h/DL=04h
SeeAlso: AX=8485h/DL=72h
--------U-5B8485DL72-------------------------
INT 5B U - SitBack v3.02R - CLEAR ??? FLAG
    AX = 8485h
    DL = 72h
Note:    the flag which is modified is located at the address returned by
       AX=5254h/DL=04h
SeeAlso: AX=8485h/DL=71h
--------U-5B8485DL73-------------------------
INT 5B U - SitBack v3.02R - ???
    AX = 8485h
    DL = 73h
    ???
Return: ???
--------U-5B8485DL74-------------------------
INT 5B U - SitBack v3.02R - ???
    AX = 8485h
    DL = 74h
    ???
Return: ???
--------U-5B8485DL75-------------------------
INT 5B U - SitBack v3.02R - ???
    AX = 8485h
    DL = 75h
    CX = ???
Return: ???
SeeAlso: AX=8485h/DL=76h
--------U-5B8485DL76-------------------------
INT 5B U - SitBack v3.02R - ???
    AX = 8485h
    DL = 76h
    CX = ???
Return: ???
Note:    conditionally calls the code for AX=8485h/DL=75h
SeeAlso: AX=8485h/DL=75h
--------U-5B8485DL77-------------------------
INT 5B U - SitBack v3.02R - SET ??? FLAG
    AX = 8485h
    DL = 77h
--------U-5B8485DL78-------------------------
INT 5B U - SitBack v3.02R - GET RESIDENT DATA SEGMENT
    AX = 8485h
    DL = 78h
Return: CX = 5342h if supported
        ES = AX = segment of TSR data
SeeAlso: AX=8485h/DL=70h,AX=8485h/DL=79h
--------U-5B8485DL79-------------------------
INT 5B U - SitBack v3.02R - GET DTA
    AX = 8485h
    DL = 79h
Return: CX = 5342h if supported
        ES:BX -> DTA set by last INT 21/AH=1Ah
Note:    this function is provided by SBOS.EXE rather than SB.EXE
SeeAlso: INT 21/AH=1Ah
--------U-5B8485DL7A-------------------------
INT 5B U - SitBack v3.02R - TOGGLE ???
    AX = 8485h
    DL = 7Ah
Return: CX = 5342h if supported
        AL = new value of ??? (00h or 01h)
--------N-5C---------------------------------
INT 5C - NetBIOS INTERFACE
    ES:BX -> network control block (NCB) (see #2500)
Return: AL = status (see #2499)
Program: NetBIOS was developed by Sytek, Inc. in 1984 as a high-level
      programming interface to the IBM PC Network; the first implementation
      was a ROM BIOS extension on Sytek's PCnet LAN adapter card, but many
      current networks support NetBIOS as the session layer.
Note:    The Sytek PCnet card uses DMA 3.
SeeAlso: INT 2A/AH=01h,INT 2A/AH=04h,INT 5B"Extended NetBIOS"

(Table 2499)
Values for NetBIOS status:
 00h    successful
 01h    bad buffer size
 03h    invalid NETBIOS command
 05h    timeout
 06h    receive buffer too small
 07h    No-ACK command failed
 08h    bad session number
 09h    LAN card out of memory
 0Ah    session closed
 0Bh    command has been cancelled
 0Dh    name already exists
 0Eh    local name table full
 0Fh    name still in use, can't delete
 11h    local session table full
 12h    remote PC not listening
 13h    bad NCB_NUM field
 14h    no answer to CALL or no such remote
 15h    name not in local name table
 16h    duplicate name
 17h    bad delete
 18h    abnormal end
 19h    name error, multiple identical names in use
 1Ah    bad packet
 21h    network card busy
 22h    too many commands queued
 23h    bad LAN card number
 24h    command finished while cancelling
 26h    command can't be cancelled
 30h    name defined by another process (OS/2)
 34h    NetBIOS environment not defined, must issue reset (OS/2)
 35h    required operating system resources exhausted (OS/2)
 36h    maximum applications exceeded (OS/2)
 37h    no SAPs available for NetBIOS (OS/2)
 38h    requested resources not available (OS/2)
 40h    Lana System Error
 41h    Lana Remote Hot Carrier
 42h    Lana Local Hot Carrier
 43h    Lana No Carrier Detected
 44h    unusual network condition
 45h-4Dh hardware error
 4Eh    token ring is broken
 4Fh    token ring error
 50h    adapter malfunction
 F7h    error in explicit INITIALIZE
 F8h    error in implicit OPEN
 F9h    TOKREUI internal error
 FAh    hardware adapter testing
 FBh    NetBIOS emulator not found
 FCh    OPEN or OPEN_SAP failure
 FDh    unexpected adapter closure
 FFh    NetBIOS busy (command pending)

Format of NetBIOS Network Control Block:
Offset    Size    Description    (Table 2500)
 00h    BYTE    command code (see #2501)
 01h    BYTE    return code (see #2499)
 02h    BYTE    local session number (LSN)
 03h    BYTE    "ncb_num" datagram table entry from ADD NAME
 04h    DWORD    -> I/O buffer
 08h    WORD    length of data in buffer
 0Ah 16 BYTEs    remote system to call
 1Ah 16 BYTEs    network name of local machine
 2Ah    BYTE    receive timeout in 1/2 seconds
 2Bh    BYTE    send timeout in 1/2 seconds
 2Ch    DWORD    -> FAR post handler    /* int (far *ncb_post)(); */
 30h    BYTE    network adapter number on which to execute command
        00h-03h IBM NetBIOS specs
        F0h-FFh Eicon NABios interface (see also INT 7B"Eicon")
 31h    BYTE    command completion code (see #2499)
 32h 14 BYTEs    reserved for network card

(Table 2501)
Values for NetBIOS command code field in NCB:
 10h    start session with NCB_NAME name (call)
 11h    listen for call
 12h    end session with NCB_NAME name (hangup)
 14h    send data via NCB_LSN
 15h    receive data from a session
 16h    receive data from any session
 17h    send multiple data buffers
 20h    send unACKed message (datagram)
 21h    receive datagram
 22h    send broadcast datagram
 23h    receive broadcast datagram
 30h    add name to name table
 31h    delete name from name table
 32h    reset adapter card and tables
 33h    get adapter status (see #2502)
 34h    status of all sessions for name (see #2504)
 35h    cancel
 36h    add group name to name table
 48h    send data and receive data (LAN Manager NETBEUI.DOS)
 70h    unlink from IBM remote program (no F0h function)
 71h    send data without ACK
 72h    send multiple buffers without ACK
 72h    UngermannBass Register (conflicts with above function)
 73h    UngermannBass SendNmc
 74h    UngermannBass Callniu
 75h    UngermannBass Calladdr
 76h    UngermannBass Listenaddr
 77h    UngermannBass SendPkt
 78h    find name
 78h    UngermannBass RcvPkt (conflicts with above function)
 79h    token-ring protocol trace
 79h    UngermannBass SendAttn (conflicts with above function)
 7Ah    UngermannBass RcvAttn
 7Bh    UngermannBass Listenniu
 7Ch    UngermannBass RcvRaw
 7Dh    UngermannBass SendNmc2
 7Fh    Beame&Whiteside BWNB installation check (returns with return code and
      completion code both set to 03h, while invalid functions return only
      return code field set to 03h)
Note:    OR any of the above except 70h with 80h for non-waiting call

Format of NetBIOS structure "astatus":
Offset    Size    Description    (Table 2502)
 00h  6 BYTEs as_id
 06h    BYTE  as_jumpers
 07h    BYTE  as_post
 08h    BYTE  as_major
 09h    BYTE  as_minor
 0Ah    WORD  as_interval
 0Ch    WORD  as_crcerr
 0Eh    WORD  as_algerr
 10h    WORD  as_colerr
 12h    WORD  as_abterr
 14h    DWORD as_tcount
 18h    DWORD as_rcount
 1Ch    WORD  as_retran
 1Eh    WORD  as_xresrc
 20h  8 BYTEs as_res0
 28h    WORD  as_ncbfree
 2Ah    WORD  as_ncbmax
 2Ch    WORD  as_ncbx
 2Eh  4 BYTEs as_res1
 32h    WORD  as_sespend
 34h    WORD  as_msp
 36h    WORD  as_sesmax
 38h    WORD  as_bufsize
 3Ah    WORD  as_names
 3Ch 16 name structures     as_name (see #2503)

Format of NetBIOS structure "name":
Offset    Size    Description    (Table 2503)
 00h 16 BYTEs "nm_name" symbolic name
 10h    BYTE  "nm_num" number associated with name
 11h    BYTE  nm_status

Format of NetBIOS structure "sstatus":
Offset    Size    Description    (Table 2504)
 00h    BYTE    number of sessions being reported
 01h    BYTE    number of sessions with this name
 02h    BYTE    number of outstanding receive datagrams
 03h    BYTE    number of outstanding ReceiveAnys
 04h    var    session structures (see #2505)

Format of NetBIOS structure "session":
Offset    Size    Description    (Table 2505)
 00h    BYTE    local session number
 01h    BYTE    state
        01h listen pending
        02h call pending
        03h session established
        04h hangup pending
        05h hangup done
        06h session aborted
 02h 16 BYTEs    local name
 12h 16 BYTEs    remote name
 22h    BYTE    number of outstanding receives
 23h    BYTE    number of outstanding sends/chainsends
--------H-5C---------------------------------
INT 5C - IRQ12 relocated by DESQview 2.26+
Range:    INT 5C to INT FC, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5B"DESQview",INT 5D"DESQview",INT 74
--------H-5C---------------------------------
INT 5C - IRQ4 relocated by DoubleDOS
SeeAlso: INT 0C
--------N-5C---------------------------------
INT 5C - TOPS INTERFACE
    ES:BX -> Network Control Block
Note:    TOPS card uses DMA 1, 3 or none.
--------N-5C---------------------------------
INT 5C - ATALK.SYS - AppleTalk INTERFACE
    DX:BX -> control block (see #2507)
Return: none
Range:    INT 5Ch to INT 70h
Notes:    the signature 'AppleTalk' appears 16 bytes prior to the interrupt
      handler; this serves as the installation check
Index:    installation check;ATALK.SYS|installation check;AppleTalk interface

(Table 2506)
Values for ATALK.SYS command code:
 01h    "AT_INIT"        initialize the driver
 02h    "AT_KILL"
 03h    "AT_GETNETINFO" get current network info incl init status
 04h    "AT_GETCLOCKTICKS"
 05h    "AT_STARTTIMER"
 06h    "AT_RESETTIMER"
 07h    "AT_CANCELTIMER"
 10h    "LAP_INSTALL"
 11h    "LAP_REMOVE"
 12h    "LAP_WRITE"
 13h    "LAP_READ"
 14h    "LAP_CANCEL"
 20h    "DDP_OPENSOCKET"
 21h    "DDP_CLOSESOCKET"
 22h    "DDP_WRITE"
 23h    "DDP_READ"
 24h    "DDP_CANCEL"
 30h    "NBP_REGISTER"
 31h    "NBP_REMOVE"
 32h    "NBP_LOOKUP"
 33h    "NBP_CONFIRM"
 34h    "NBP_CANCEL"
 35h    "ZIP_GETZONELIST"
 36h    "ZIP_GETMYZONE"
 37h    "ZIP_TAKEDOWN"
 38h    "ZIP_BRINGUP"
 40h    "ATP_OPENSOCKET"
 41h    "ATP_CLOSESOCKET"
 42h    "ATP_SENDREQUEST"
 43h    "ATP_GETREQUEST"
 44h    "ATP_SENDRESPONSE"
 45h    "ATP_ADDRESPONSE"
 46h    "ATP_CANCELTRANS"
 47h    "ATP_CANCELRESPONSE"
 48h    "ATP_CANCELREQUEST"
 50h    "ASP_GETPARMS"
 51h    "ASP_CLOSESESSION"
 52h    "ASP_CANCEL"
 53h    "ASP_INIT"
 54h    "ASP_KILL"
 55h    "ASP_GETSESSION"
 56h    "ASP_GETREQUEST"
 57h    "ASP_CMDREPLY"
 58h    "ASP_WRTCONTINUE"
 59h    "ASP_WRTREPLY"
 5Ah    "ASP_CLOSEREPLY"
 5Bh    "ASP_NEWSTATUS"
 5Ch    "ASP_ATTENTION"
 5Dh    "ASP_GETSTATUS"
 5Eh    "ASP_OPENSESSION"
 5Fh    "ASP_COMMAND"
 60h    "ASP_WRITE"
 61h    "ASP_GETATTENTION"
 70h    "PAP_OPEN"
 71h    "PAP_CLOSE"
 72h    "PAP_READ"
 73h    "PAP_WRITE"
 74h    "PAP_STATUS"
 75h    "PAP_REGNAME"
 76h    "PAP_REMNAME"
 77h    "PAP_INIT"
 78h    "PAP_NEWSTATUS"
 79h    "PAP_GETNEXTJOB"
 7Ah    "PAP_KILL"
 7Bh    "PAP_CANCEL"

Format of AppleTalk control block:
Offset    Size    Description    (Table 2507)
 00h    WORD    command code (see #2506)
        OR with the following flags
        8000h start command then return
        4000h wait for interrupt service to complete
 02h    WORD    returned status
        0000h success (already initialized if func 01h)
 04h    DWORD    pointer to completion function
 08h    WORD    network number
 0Ah    BYTE    node ID
---if general func (01h,03h), control block continues:
 0Bh    BYTE    "inf_abridge"
 0Ch    WORD    "inf_config"
 0Eh    DWORD    pointer to buffer
 12h    WORD    buffer size
---if DDP function (20h-24h), control block continues:
 0Bh    BYTE    "ddp_addr_socket"
 0Ch    BYTE    "ddp_socket"
 0Dh    BYTE    "ddp_type"
 0Eh    DWORD    pointer to buffer
 12h    WORD    buffer size
 14h    BYTE    "ddp_chksum"
---if Name Binding Protocol (30h-34h), control block continues:
 0Bh    BYTE    "nbp_addr_socket"
 0Ch    WORD    "nbp_toget"
 0Eh    DWORD    pointer to buffer (see #2508)
 12h    WORD    buffer size
 14h    BYTE    "nbp_interval"
 15h    BYTE    "nbp_retry"
 16h    DWORD    "nbp_entptr"
---if AppleTalk Transaction Protocol (42h), control block continues:
 0Bh    BYTE    "atp_addr_socket"
 0Ch    WORD    "atp_socket"
 0Eh    DWORD    pointer to buffer
 12h    WORD    buffer size
 14h    BYTE    "atp_interval"
 15h    BYTE    "atp_retry"
 16h    BYTE    ATP flags
        bit 5: exactly one transaction
 17h    BYTE    "atp_seqbit"
 18h    BYTE    transaction ID
 19h  4 BYTEs    ATP user bytes
 1Dh    BYTE    number of BDS buffers
 1Eh    BYTE    number of BDS responses
 1Fh    DWORD    pointer to BDS buffers (see #2509)

Format of Name Binding Protocol Name-to-Address binding entries for NBP_LOOKUP:
Offset    Size    Description    (Table 2508)
 00h    WORD    "tup_address_network"
 02h    BYTE    "tup_address_notid"
 03h    BYTE    "tup_address_socket"
 04h    BYTE    "tup_enum"
 05h 99 BYTEs    name

Format of BDS entries:
Offset    Size    Description    (Table 2509)
 00h    DWORD    pointer to buffer
 04h    WORD    size of buffer
 06h    WORD    BDS data size
 08h  4 BYTEs    "bds_userbytes"
--------N-5C---------------------------------
INT 5C - IBM 802.2 INTERFACE (LLC)
    ES:BX -> CCB (see #2510)
Return: none

Format of IBM 802.2 CCB:
Offset    Size    Description    (Table 2510)
 00h    BYTE    adapter
 01h    BYTE    command code
 02h    BYTE    return code
 03h    BYTE    work
 04h    DWORD    pointer to ???
 08h    DWORD    pointer to completion function???
 0Ch    DWORD    pointer to parameters???
--------N-5C---------------------------------
INT 5C - $25 LAN - INSTALLATION CHECK
Notes:    current versions only check whether the vector is 0000h:0000h or not
    future versions are supposed to have the signature "NET" in the three
      bytes preceding the INT 5C handler
--------b-5C---------------------------------
INT 5C C - TI Professional PC - KEYBOARD PAUSE KEY VECTOR
    AX = 0100h
    CF clear
Return: CF clear
        AX = keystroke to be placed into keyboard buffer
    CF set
        AX ignored
Desc:    toggle a pause flag which is checked by the CRT Device Service Routine
      (see INT 49/AH=01h"TI") and causes it to temporarily halt the
      machine on the next video-related function (until a key is pressed)
SeeAlso: INT 09"IRQ1",INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5D"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"
--------N-5C04-------------------------------
INT 5C - $25 LAN - CHECK IF CONNECTION ALIVE
    AH = 04h
    AL = COM port (0 = default)
    CX = wait count in character times (should be at least 100)
Return: ZF set if link alive
--------H-5D---------------------------------
INT 5D - IRQ13 relocated by DESQview 2.26+
Range:    INT 5D to INT FD, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5C"DESQview",INT 5E"DESQview",INT 75
--------H-5D---------------------------------
INT 5D - IRQ5 relocated by DoubleDOS
SeeAlso: INT 0D"IRQ5",INT 5C"DoubleDOS"
--------b-5D---------------------------------
INT 5D C - TI Professional PC - KEYBOARD BREAK KEY VECTOR
    CF clear
    AX = 0000h
Return: CF clear
        AX = keystroke to place into keyboard buffer
    CF set
        AX ignored
Desc:    invoked by the keyboard ISR when Shift-BrkPause is pressed
Note:    the default handler is a simple IRET instruction
SeeAlso: INT 09"IRQ1",INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"
--------H-5E---------------------------------
INT 5E - IRQ14 relocated by DESQview 2.26+
Range:    INT 5E to INT FE, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5D"DESQview",INT 5F"DESQview",INT 76
--------H-5E---------------------------------
INT 5E - IRQ6 relocated by DoubleDOS
SeeAlso: INT 0E,INT 5D"DoubleDOS"
--------b-5E---------------------------------
INT 5E C - TI Professional PC - KEYBOARD PRINT-SCREEN VECTOR
    CF set
Return: CF clear
        AX = keystroke to be placed into keyboard buffer
    CF set
        AX ignored
Desc:    hook to dump the screen to the printer
Notes:    hooked by TI MS-DOS, which provides a PRTSCRN character device which
      can invoke screen prints when a decimal digit (indicating the type
      of screen dump) is written to it
    the TI MS-DOS print-screen routine allows selective dumps of text
      only, graphics only, or text and graphics superimposed, in either
      normal or reverse, by pressing the appropriate keystroke combination:
      Shift-Print, Ctrl-Print, Alt-Print, Shift-Alt-Print, Ctrl-Alt-Print,
      or Shift-Ctrl-Print.
    the BIOS default routine for this vector is an IRET
SeeAlso: INT 05"PRINT SCREEN",INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5D"TI Professional",INT 5F"TI Professional"
--------H-5F---------------------------------
INT 5F - IRQ15 relocated by DESQview 2.26+
Range:    INT 5F to INT FF, selected automatically
Note:    this is the default, but other INTs may be used (see INT 50"DESQview")
SeeAlso: INT 50"DESQview",INT 5E"DESQview",INT 77
--------H-5F---------------------------------
INT 5F - IRQ7 relocated by DoubleDOS
SeeAlso: INT 0F,INT 5E"DoubleDOS"
--------b-5F---------------------------------
INT 5F C - TI Professional PC - KEYBOARD QUEUEING VECTOR
Return: all registers preserved
Desc:    hook for multitaskers to be informed when a keypress is placed in the
      keyboard buffer
Note:    the default handler is a simple IRET instruction
SeeAlso: INT 09,INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5D"TI Professional",INT 5E"TI Professional"
--------b-5F00-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET VIDEO MODE
    AH = 00h
    AL = video mode
        03h text,CGA color (100LX/200LX)
        06h 640x200 CGA graphics (100LX/200LX)
        07h text, system manager compliant
        20h 240x128 mono graphics, system manager compliant
        87h text, not system manager compliant
        A0h 240x128 mono graphics, not system manager compliant
Notes:    the defaults after setting the mode to graphics are (0,0) logical
      origin, full-screen clip region, (0,0) pen location, pen color 1,
      pixel replacement FORCE, line type and fill mask all bits set
    modes 03h and 06h can also be set with the standard INT 10/AH=00h
SeeAlso: INT 0F"HP 95LX",INT 10/AH=00h,INT 15/AX=4DD4h
--------b-5F01-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET FILL MASK
    AH = 01h
    ES:DI -> 8-byte fill mask
Note:    the fill mask represents an 8x8 pixel box and is repeated as necessary
      when drawing filled rectangles; it is always aligned with the byte
      boundaries of video memory, regardless of the actual boundaries of
      the rectangle
SeeAlso: AH=02h
--------b-5F02-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET CURRENT GRAPHICS INFO
    AH = 02h
    ES:DI -> graphics info record (see #2511)
Return: DX:AX -> filled graphics info record (for return to high-level langs)

Format of HP 95LX graphics info record:
Offset    Size    Description    (Table 2511)
 00h    BYTE    current video mode
 01h    BYTE    default video mode
 02h    WORD    display width in pixels
 04h    WORD    display height in pixels
 06h    WORD    current pen column
 08h    WORD    current pen row
 0Ah    WORD    current line type
 0Ch    WORD    current replacement rule
 0Eh    WORD    current pen color
 10h    WORD    current leftmost column of clip region
 12h    WORD    current rightmost column of clip region
 14h    WORD    current topmost row of clip region
 16h    WORD    current bottommost row of clip region
 18h    WORD    current column of logical origin
 1Ah    WORD    current row of logical origin
 1Ch  8 BYTEs    current fill mask
--------b-5F03-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET LOGICAL ORIGIN
    AH = 03h
    CX = column
    DX = row
SeeAlso: AH=04h
--------b-5F04-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET CLIP REGION
    AH = 04h
    CX = left-most column
    DX = top-most row
    SI = right-most column
    DI = bottom-most row
SeeAlso: AH=03h
--------b-5F05-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - DRAW RECTANGLE
    AH = 05h
    AL = fill type
        00h outline, using current line type and color
        01h solid, using current color
        02h pattern, using current fill mask and color
    DX,CX = row,column of other corner of rectangle
Note:    the rectangle is drawn starting at the current pen position
SeeAlso: AH=01h,AH=06h,AH=07h
--------b-5F06-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - DRAW LINE
    AH = 06h
    DX,CX = row,column of end point
Note:    the line is drawn starting at the current pen position
SeeAlso: AH=05h,AH=07h
--------b-5F07-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - PLOT POINT
    AH = 07h
    DX,CX = row,column of point
Note:    also sets pen position to the specified point
SeeAlso: AH=06h,AH=08h,AH=0Ch
--------b-5F08-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - MOVE PEN
    AH = 08h
    DX,CX = row,column of new pen position
SeeAlso: AH=07h,AH=09h
--------b-5F09-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET PEN COLOR
    AH = 09h
    AL = new color (00h = white, 01h = black)
SeeAlso: AH=08h,AH=0Ah,AH=0Bh
--------b-5F0A-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET REPLACEMENT RULE
    AH = 0Ah
    AL = new replacement rule
        00h force
        01h AND
        02h OR
        03h XOR
        ---100LX/200LX---
        04h InvForce
        05h InvAND
        06h    InvOR
        07h InvXOR
        08h Txt
SeeAlso: AH=01h,AH=09h,AH=0Bh
--------b-5F0B-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - SET LINE TYPE
    AH = 0Bh
    CX = new line type
Note:    the line type specifies 16 bits which are repeated over and over while
      drawing the pixels of a line
SeeAlso: AH=09h,AH=0Ah
--------b-5F0C-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET PIXEL
    AH = 0Ch
    DX,CX = row,column of pixel to read
Return: AX = pixel color
SeeAlso: AH=07h
--------b-5F0D-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - GET IMAGE
    AH = 0Dh
    DX,CX = row,column of first corner
    BP,SI = row,column of second corner
    ES:DI -> image buffer (see #2512)
Note:    the specified corners are included in the saved image
SeeAlso: AH=0Eh

Format of HP 95LX image buffer:
Offset    Size    Description    (Table 2512)
 00h    WORD    number of planes (always 01h on HP 95LX)
 02h    WORD    number of bits/pixel (always 01h on HP 95LX)
 04h    WORD    image width in pixels
 06h    WORD    image height in pixels
 08h  N BYTEs    image data
        requires (WIDTH+7)/8 * HEIGHT bytes
--------b-5F0E-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - PUT IMAGE
    AH = 0Eh
    AL = replacement rule (see #2513)
    DX,CX = row,column of top left corner
    ES:DI -> image buffer (see #2512)
Note:    if the specified image does not fit completely on the screen, this call
      does nothing
SeeAlso: AH=0Dh

Bitfields for replacement rule:
Bit(s)    Description    (Table 2513)
 2    invert image before applying rule
 1-0    function (00 force, 01 AND, 10 OR, 11 XOR)
--------b-5F0F-------------------------------
INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - WRITE TEXT
    AH = 0Fh
    AL = rotate flag (if nonzero, rotate 90 degrees counter-clockwise)
    DX,CX = row,column of first character's top left corner
    ES:DI -> ASCIZ text
--------b-5F10-------------------------------
INT 5F - HP 100LX/200LX GRAPHICS PRIMITIVES - GET FONT POINTER
    AH = 10h
    CX = font size of desired font
        0808h  8x8    small  (80x25 text)
        0A0Bh 11x10 medium (64x18 text)
        100Ch 12x16 large  (40x16 text)
Return: DX:AX -> ptr to font or 0000h:fontID# if built-in font
SeeAlso: AH=11h
--------b-5F11-------------------------------
INT 5F - HP 100LX/200LX GRAPHICS PRIMITIVES - SET CURRENT FONT
    AH = 11h
    ES:DI -> ptr to font or 0000h:fontID# for built-in font
Note:    this function should be called immediately after AH=10h with the
      pointer supplied by that call
SeeAlso: AH=10h
--------*-60---------------------------------
INT 60 - reserved for user interrupt
--------v-60---------------------------------
INT 60 - VIRUS - "Zero Bug" - INSTALLATION CHECK
Desc:    The "Zero Bug" virus hooks this vector.     It considers itself installed
      if offset 103h of the handler's segment contains the bytes "ZE"
SeeAlso: INT 32"VIRUS",INT 44"VIRUS",INT 61"SEMTEX"
--------d-60---------------------------------
INT 60 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 41"HARD DISK 0",INT 61"Adaptec",INT 62"Adaptec",INT 63"Adaptec"
SeeAlso: INT 64"Adaptec",INT C0"AMI",#0629
Notes:    this vector stores the first four bytes of the parameter table for
      hard disk 0
    these vectors are used by the following Adaptec controllers:
        ACB 2370 A/B/C, ACB 2372 A/B/C, ACB 2333 A/B, 2322B-8, 2322B-16
    these vectors are NOT used by the following Adaptec controllers:
        ACB 2310, ACB 2312, ACB 2320D, ACB 2322D
--------b-60---------------------------------
INT 60 - TI Professional PC - SYSTEM ROM DATA AREA POINTER (NOT A VECTOR!)
Desc:    the low word of this vector contains the segment of the RAM data area
      to be used by the system ROM at F400h:A000h, and the high word
      contains the length of the data area (see #2514)
SeeAlso: INT 61"TI Professional PC",INT 66"TI Professional PC"

Format of TI Professional System ROM data area:
Offset    Size    Description    (Table 2514)
 00h    BYTE    port 00h shadow
 01h    BYTE    port 03h shadow
 02h    BYTE    port 04h shadow
 03h    WORD    system configuration word (see #2515)
 05h    BYTE    25ms count
 06h    WORD    offset of timing event 1 (0008h)
 08h    WORD    (event 1) offset of timing event 2 (0010h)
 0Ah    BYTE    (event 1) unused (FFh)
 0Bh    BYTE    (event 1) active flag (bit 7 set if on)
 0Ch    WORD    (event 1) count-down until end of event
 0Eh    WORD    (event 1) event routine (in segment F400h) to call at timeout
 10h    WORD    (event 2) offset of timing event 3 (0018h)
 12h    BYTE    (event 2) unused (FFh)
 13h    BYTE    (event 2) active flag (bit 7 set if on)
 14h    WORD    (event 2) count-down until end of event
 16h    WORD    (event 2) event routine (in segment F400h) to call at timeout
 18h    WORD    (event 3) offset of timing event 3 (0020h)
 1Ah    BYTE    (event 3) unused (FFh)
 1Bh    BYTE    (event 3) active flag (bit 7 set if on)
 1Ch    WORD    (event 3) count-down until end of event
 1Eh    WORD    (event 3) event routine (in segment F400h) to call at timeout
 20h    WORD    (event 4) 0000h - last event
 22h    BYTE    (event 4) unused (FFh)
 23h    BYTE    (event 4) active flag (bit 7 set if on)
 24h    WORD    (event 4) count-down until end of event
 26h    WORD    (event 4) event routine (in segment F400h) to call at timeout
 28h    WORD    offset of start of text display within segment DE00h
 2Ah    WORD    end of display
 2Ch    WORD    current absolute cursor position
 2Eh    WORD    start of current character row
 30h    WORD    current cursor column
 32h    WORD    cursor type and size (see #3512)
 34h    WORD    start of protected status region on screen (0000h = none)
 36h    BYTE    pop flag used by some ROM routines
        00h pop registers before return
        nonzero: do not pop
 37h    BYTE    unused (FFh)
 38h    BYTE    PAUSE flag
        00h off
        FFh on
 39h    BYTE    temp: current attribute while moving characters on screen
 3Ah    WORD    start of keyboard queue (next key at start+2 or 0042h if 0060h)
 3Ch    WORD    end of keyboard queue (next key inserted at end+2 or 0042h)
 3Eh    BYTE    number of characters in buffer
 3Fh    BYTE    keyboard mode flags (see #3513)
 40h    BYTE    Alt-digit-digit-digit accumulator
 41h    BYTE    Alt-digit-digit-digit count of digits (mod 3)
 42h 16 WORDs    keyboard buffer (circular queue)
 62h  8 DWORDs    Drive Interface Table pointers for floppies A:-D: + four others
        (0000h:0000h if pointer not in use)
 82h    BYTE    disk-error retry count (incremented on each disk error)
 83h  2    BYTEs    BIOS scratch space
 85h  8 BYTEs    current cylinder number for drives 0-7
        FFh = unknown
 8Dh    BYTE    BIOS scratch space
 8Eh    BYTE    hard error code for last disk access
        00h operation successful
 8Fh  8 BYTEs    save area for disk DSR parameters
 97h  6 BYTEs    current drive status
 9Dh    BYTE    retry error status
 9Eh    BYTE    BIOS scratch space
 9Fh  7 BYTEs    ???
 A6h  2    WORDs    INT 47 save area for SS,SP
 AAh  2    WORDs    INT 46 save area for SS,SP
 AEh  2    WORDs    INT 43 save area for SS,SP
 B2h  2    WORDs    save area for SS,SP to be restored by common intr. exit routine
 B6h 24 WORDs    stack for INT 47
 E6h 24 WORDs    stack for INT 46
116h 17 WORDs    stack for INT 43
13Ah  6 BYTEs    system date and time (hundredths, seconds, minutes, hours, and
          WORD days since 1/1/1980)
Note:    timing event 1 is the disk I/O timeout, event 2 is the floppy disk
      motor timeout, event 3 is the floppy disk motor spin-up time, and
      event 4 is used to turn off the speaker after a delay

Bitfields for TI Professional PC cursor size and type:
Bit(s)    Description    (Table 3512)
 15    reserved (0)
 14-13    cursor type
    00 nonblinking
    01 off
    10 slow blink
    11 fast blink
 12-8    starting scan line (0-11)
 7-5    reserved (0)
 4-0    ending scan line (0-11)
SeeAlso: #2514

Bitfields for TI Professional PC keyboard mode flags:
Bit(s)    Description    (Table 3513)
 7    CapsLock was ON at last keypress
 6-4    reserved (0)
 3    repeat key
 2    Shift was down at last keypress
 1    Alt was down at last keypress
 0    Ctrl was down at last keypress
SeeAlso: #2514

Bitfields for TI Professional System Configuration Word:
Bit(s)    Description    (Table 2515)
 0    drive A: installed
 1    drive B: installed
 2    drive C: installed
 3    drive D: installed
 4    drive A: is 80-track
 5    drive A: is double-sided
 6    60-Hz (USA,etc.) system instead of 50-Hz (Europe)
 7    hard disk installed
 8    serial port 1 installed
 9    serial port 2 installed
 10    serial port 3 installed
 11    serial port 4 installed
 14-12    installed graphics planes
    000 none
    001 plane A
    111 planes A, B, and C
 15    clock installed
SeeAlso: #2514
--------b-60---------------------------------
INT 60 - Atari Portfolio - USER INTERFACE FUNCTIONS
Desc:    supplies a number of subfunctions which perform such functions as
      drawing boxes and menus, and provide input line editing
SeeAlso: INT 61/AH=00h"Atari",INT 61"EXTENDED BIOS"
--------V-60---------------------------------
INT 60 - Nabbit v2.0 - (NOT A VECTOR!) - INSTALLATION CHECK
Program: Nabbit is a shareware resident screen data grabber by RSE Inc.
Range:    INT 60 to INT 66, selected by searching for first free vector
Note:    the Nabbit installation check consists of testing whether the
      interrupt vector points at the ASCIZ signature string "iG"
      (69h 47h 00h)
--------V-60---------------------------------
INT 60 - ATI M64VBE.COM - INSTALLATION SIGNATURE
Program: M64VBE is a VESA VBE 2.0 driver TSR for ATI's Mach64 video chip
Range:    INT 60 to INT 66, selected by searching for first free vector
Note:    the installation check is to scan for an interrupt with the ASCIZ
      signature "M64VBE" three bytes past the interrupt handler
SeeAlso: INT 10/AX=4FDDh"M64VBE",INT 10/AX=4FFFh/BX=364Dh"M64VBE"
--------V-60---------------------------------
INT 60 U - Buffit v3.0 - (NOT A VECTOR!) - INSTALLATION CHECK
Program: Buffit is a shareware scrollback utility by D.T. Hamilton
Range:    INT 60 to INT 6F, selected by searching for first free vector
Notes:    the Buffit installation check consists of testing whether the
      interrupt vector points at the ASCII signature "Buffit  "
    there is a private entry point (see #2516) immediately following the
      signature string, i.e. eight bytes beyond the address pointed at
      by the interrupt vector

(Table 2516)
Call Buffit private entry point with:
    AH = function
        00h get information and hotkey state
        01h get information and toggle hotkey state
Return: AH = new hotkey state (00h enabled, 01h disabled)
    AL = hotkey scan code (see #0005)
    BH = hotkey shift states
    BL = ??? (01h)
    CX = segment of resident code
    DH = interrupt number used for signature pointer
    DL = ??? (00h)
    SI = INT 09 handler offset
    DI = INT 21 handler offset
Index:    hotkeys;Buffit
--------r-60---------------------------------
INT 60 - PC-IPC API
    STACK:    DWORD    pointer to parameter block (see #2517)
Return: STACK:    unchanged
Program: PC-IPC is a shareware TSR by Donnelly Software Engineering which
      allows communication between independent programs
Range:    INT 00 to INT FF, selected by commandline switch

Format of PC-IPC parameter block:
Offset    Size    Description    (Table 2517)
 00h    WORD    caller's ID
 02h    WORD    to ID
 04h    WORD    command code (see #2518)
 06h    WORD    returned status (see #2519)
 08h    WORD    returned error code (see #2520)
 0Ah    WORD    size of data
 0Ch    DWORD    pointer to data buffer

(Table 2518)
Values for PC-IPC command code:
 01h "IPC_CMND_INQUIRE"     inquire current status
    set status field, writes WORD to data buffer containing free
      message space in bytes, and sets the "size" field to the
      number of messages waiting
 02h "IPC_CMND_ENABLE"    reenable PC-IPC
    ignored unless called with the same ID that disabled PC-IPC
 03h "IPC_CMND_DISABLE" disable PC-IPC
 04h "IPC_CMND_INSTALL" reset PC-IPC
 06h "IPC_CMND_RDATA"    read data
    returns first message in data buffer, sets "size" to message length
      and "to ID" field to sender's ID
    if no messages available, bit 4 of status is cleared and "size" is
      set to zero
 07h "IPC_CMND_SDATA"    send data
 08h "IPC_CMND_REQID"    require user ID
    create a new recognized ID and return in "caller's ID" field
 09h "IPC_CMND_DELID"    cancel user ID
    delete caller's ID from pool of recognized IDs
 0Ah "IPC_CMND_RDATAW"    read data, wait if no messages available
 0Bh "IPC_CMND_VERS"    get PC-IPC version
    string representing version returned in data buffer, "size" field
      set to length of string

Bitfields for returned status:
Bit(s)    Description    (Table 2519)
 0    unused
 1    IPC enabled
 2    IPC installed
 3    error
 4    message(s) available

(Table 2520)
Values for PC-IPC error code:
 00h    no error
 01h    invalid command or parameter
 02h    only process 0 can install/reset IPC
 03h    process can not install/reset IPC
 04h    IPC is not enabled
 05h    process can not disable IPC
 06h    invalid destination process ID
 07h    invalid sending process ID
 08h    invalid data destination
 09h    no more process IDs available
 0Ah    can not relinquish that process ID
 0Bh    message space is full
 0Ch    IPC is not installed
--------R-60---------------------------------
INT 60 - Tangram Arbiter - API
Desc:    Arbiter makes a PC disk look like a slow disk over an SNA link to an
      IBM mainframe
Range:    INT 60h to INT 66h, selected by configuration parameter
Notes:    identified by string "@ARB_API" immediately following a short jump at
      the interrupt handler address
--------N-60---------------------------------
INT 60 - Excelan LAN Workplace for DOS 3.5 - API
    ES:BX -> request packet (see #2521)
Return: request packet updated
Notes:    this interrupt is also supported by Beame&Whiteside's BWLWP35 shim,
      which was used in creating this description
    the installation check consists of testing for the WORD 4142h ('AB')
      immediately preceding the interrupt handler
BUG:    because BWLWP35 range-checks only the low byte of the function number,
      and has a fencepost error even in that test, functions 000Bh and
      XX01h-XX0Bh (XX nonzero) branch to random locations
SeeAlso: INT 2F/AX=7A40h

Format of Excelan request packet:
Offset    Size    Description    (Table 2521)
 00h 12 BYTEs    ???
 0Ch    WORD    (ret) error code (see #2522)
 0Eh    DWORD    -> FAR function for ???
 12h    WORD    function number
        0001h ???
        0002h NOP
        0003h NOP
        0004h NOP
        0005h ???
        0006h get ??? record
        0007h NOP
        0008h reset ???
        0009h NOP
        000Ah set ???
    ???
---function 01h---
 20h    BYTE    (call) subfunction (32h-3Bh)
        3Bh non-blocking I/O request (will be tested every clock tick)
 21h    BYTE    (ret) error code
        00h successful
        09h invalid connection number
        2Ah bad connection type
        45h ???
---function 01h, subfunction 32h---
 3Ah    WORD    (call) connection type (01h stream, 02h datagram)
---function 01h, subfunction 34h---
 26h    WORD    (call) ???
 28h    WORD    (call) ???
 2Ah    WORD    (call) ???
---function 01h, subfunction 35h---
 1Ah    WORD    (call) connection number???
 26h    WORD    (ret) ???
---function 01h, subfunction 36h---
 1Ah    WORD    (call) connection number???
 38h    WORD    ???
---function 01h, subfunction 37h---
 24h    WORD    (ret) ???
 26h    WORD    (ret) ???
---function 01h, subfunction 38h---
 1Ah    WORD    (call) connection number???
---function 01h, subfunction 3Ah---
 22h    WORD    (call) ???
        667Eh ???
        667Fh ???
 24h    BYTE    (call 667Eh) ???
 24h    WORD    (return 667Fh) ???
---function 01h, subfunction 3Bh---
 0Eh    DWORD    (call) -> function to invoke for I/O or 0000h:0000h
        function called with AX = 0000h
                     STACK: DWORD -> request packet
                        WORD 0000h
            should return STACK unchanged
 1Ah    WORD    (call) connection number???
 21h    BYTE    (ret) set to 01h when I/O becomes possible
 22h    BYTE    (call) direction (00h write, 01h read)
 34h    DWORD    (ret) -> next pending request packet
---function 05h---
 1Eh    WORD    (call) ???
 20h    WORD    (call) ???
 34h    DWORD    (call) -> ???
---function 06h---
 16h    DWORD    (call) -> buffer for ??? record (see #2523)
 1Ah    WORD    (call) number of bytes to copy
 22h    WORD    (ret) number of bytes transferred
---function 08h---
 14h    WORD    (ret) ??? (0001h)
---function 0Ah---
 16h    DWORD    (call) -> WORD ???
 1Ch    WORD    (call) must be 000Ah for BWLWP35

(Table 2522)
Values for Excelan error code:
 0000h    successful
 002Dh    invalid function
 0050h    ???

Format of ??? record:
Offset    Size    Description    (Table 2523)
 00h    WORD    offset of ???
 02h  4 BYTEs    ???
 06h    DWORD    IP address (big-endian)
 0Ah  6 BYTEs    physical address (big-endian)
    ???
--------N-60---------------------------------
INT 60 - TCPDRV 2.01 - TCP/IP Application Binary Interface (ABI)
Note:    The handler for the interrupt will start with a 2-byte NEAR jump
      instruction, followed by the ASCIZ signature string "TCP DRVR".
    To find the interrupt being used by the driver, an application
      should scan through interrupt vectors 60h to 7Fh until it finds
      one with the "TCP DRVR" string.
    This specification is being proposed by Peter R. Tattam from the
      University of Tasmania.
Index:    installation check;TCPDRV
--------G-60---------------------------------
INT 60 U - INTRSPY/CMDSPY v1.0 only - API
Program: INTRSPY is a script-driven debugger included with the book
      _Undocumented_DOS_.
Notes:    INTRSPY will hook the first available interrupt in the range 60h-67h.
    The installation check is to
      a) determine that the handler is an IRET instruction
      b) the signature 0Dh "INTRSPY vN.NN" immediately precedes the handler
    If INTRSPY is installed, the DWORD immediately after the IRET stores
      its entry point (see #2524)
    INTRSPY v2.0 (included with the second edition of the book) no longer
      supports this API
Index:    installation check;INTRSPY

(Table 2524)
Call INTRSPY v1.0 entry point with:
    AH = function
        00h ???
        01h set current directory (for use in reporting)
        ES:DI -> counted string containing directory name (max 79 char)
        02h set name of script file
        ES:DI -> counted string containing file name (max 79 chars)
        03h set script arguments
        ES:DI -> counted string containing arguments (max 79 chars)
        04h get directory set with function 01h
        ES:DI -> 80-byte buffer for directory name
        05h get name of script file
        ES:DI -> 80-byte buffer for script filename
        06h get script arguments
        ES:DI -> 80-byte buffer for script arguments
        07h get ???
        CL = 00h-15h specifies what to get
        ES:DI -> WORD to be set with desired value on return
        08h get ???
        ES:DI -> WORD to be set with returned value
        09h get ???
        ES:DI -> WORD to be set with returned value
        0Bh store code for interrupt handler???
        ES:DI -> data
        CX = number of bytes
        0Ch ???
        ES:DI -> ???
        0Dh get ???
        ES:DI -> BYTE to be set with returned value
        0Eh set ??? flag
        0Fh clear ??? flag
        10h ???
        Return: AL = 04h or 05h if failed
        11h ???
        Return: AL = 05h if failed
        12h get ???
        ES:DI -> buffer
        Return: CX = number of bytes returned in buffer
        13h ???
Return: AH = 00h
    AL = status
        00h successful
        01h invalid function
        02h ???
        03h ???
        04h ???
        05h ???
--------u-60---------------------------------
INT 60 U - PC/370 v4.2 - ???
    ???
Return: ???
Program: PC/370 is an IBM 370 emulator by Donald S. Higgins
Range:    INT 00 to INT FF, selected by patching the executable
Note:    the documentation includes instructions for patching the system for
      another interrupt
SeeAlso: INT 2F/AX=7F24h,INT DC"PC/370"
--------r-60---------------------------------
INT 60 - JPI TopSPEED Modula-2 v1 - PROCEDURE ENTRY TRAP
SeeAlso: INT 61"JPI"
--------N-60---------------------------------
INT 60 - FTP Packet Driver - PC/TCP Packet Driver Specification
Range:    INT 20 to INT FF
Notes:    The handler for the interrupt will start with a 3-byte jump
      instruction, followed by the ASCIZ string "PKT DRVR" (the
      terminating NUL is significant).
    To find the interrupt being used by the driver, an application should
      scan through interrupt vectors 20h to FFh (60h through 80h for
      v1.09- of the specification) until it finds one with the "PKT DRVR"
      string.
    AH values of 80h to FFh have been reserved for user-defined additions.
--------I-60---------------------------------
INT 60 u - 3270-PC CONTROL PROGRAM - ???
--------b-60----DI0100-----------------------
INT 60 u - HP 95LX System Manager - WAIT FOR EVENT
    DI = 0100h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to event record (see #2526)
Return: event record filled
    STACK unchanged
Note:    this call will timeout after about 500ms
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0101h,INT 61"HP 95LX",INT 62"HP 95LX"

(Table 2525)
Values for HP 95LX event type:
 00h    no events
 01h    keystroke available
 02h    Ctrl-Break
 03h    reactivation (always follows deactivation event)
 04h    about to deactivate (sleep)
    next get-event call will not return until reactivated
 05h    forced application termination
 06h    1-2-3 bridge service request (only given to 1-2-3)
 07h    request to grow
 08h    request to shrink
 09h    application's alarm expired
 0Ah    daily chance to set an alarm
 0Bh    system date or time has been changed

Format of HP 95LX event record:
Offset    Size    Description    (Table 2526)
 00h    WORD    event type (see #2525)
 02h    WORD    ASCII code page 850 translation of keystroke
        or grow/shrink amount in paragraphs or 0000h if error
        or alarm expiration data
 04h    BYTE    scan code from BIOS
 05h    BYTE    shift key states at time keystroke is retrieved
 06h    WORD    LICS translation of keystroke
 08h    BYTE    function key number (1-2-3 only)
 09h    DWORD    pointer to 1-2-3 bridge record (see #2528)
        or pointer to time change structure (see #2527)
Note:    if the System Manager is awaiting the conclusion of a bridge service
      or grow/shrink call and the event type field is set to FFFFh on
      entry, the SysMgr will resume

Format of HP 95LX time change structure:
Offset    Size    Description    (Table 2527)
 00h    WORD    old year
 02h    BYTE    old month
 03h    BYTE    old date
 04h    BYTE    old day
 05h    BYTE    old hour
 06h    BYTE    old minute
 07h    BYTE    old second
 08h    BYTE    old hundredth of a second
 09h  9 BYTEs    new time in same format as old time
--------b-60----DI0101-----------------------
INT 60 u - HP 95LX System Manager - CHECK FOR EVENT
    DI = 0101h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD pointer to event record (INT 60/DI=0100h)
Return: event record filled
    STACK unchanged
Note:    this call returns immediately if no event is available
SeeAlso: INT 60/DI=0100h
--------b-60----DI0102-----------------------
INT 60 u - HP 95LX System Manager - "SH_STATUS"
    DI = 0102h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI0104-----------------------
INT 60 u - HP 95LX System Manager - LOTUS 1-2-3 BRIDGE SERVICES
    DI = 0104h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD pointer to bridge record (see #2528)
Return: ???
    STACK unchanged

Format of HP 95LX bridge record:
Offset    Size    Description    (Table 2528)
 00h    WORD    function code (see #2529)
 02h    WORD    return code from 1-2-3
 04h 16 BYTEs    ASCII range name
 14h    WORD    start column of range
 16h    WORD    start row of range
 18h    WORD    end column of range
 1Ah    WORD    end row of range
 1Ch    WORD    order in which data is placed in buffer
 1Eh    WORD    buffer size
 20h    WORD    offset within bridge record's segment of buffer for cell data

(Table 2529)
Values for HP 95LX function code:
 00h    test
 01h    get range
 02h    "GETRANGE_ADDR"
 03h    "SETRANGE_ADDR"
 04h    "GETRANGE_DATA"
 05h    "SETRANGE_DATA"
 06h    recalculate
 07h    get cursor
 08h    set cursor
 09h    redisplay
 0Ah    cell type
 0Bh    "CALCTYPE"
--------b-60----DI0105-----------------------
INT 60 u - HP 95LX System Manager - FLUSH KEYBOARD BUFFER
    DI = 0105h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI0106-----------------------
INT 60 u - HP 95LX System Manager - YIELD CPU
    DI = 0106h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=1000h,INT 2F/AX=1680h
--------b-60----DI0107-----------------------
INT 60 u - HP 95LX System Manager - "NO_FINI" - REFUSE TERMINATION REQUEST
    DI = 0107h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0200-----------------------
INT 60 u - HP 95LX System Manager - SETUP MENU
    DI = 0200h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to menu data (see #2530)
        DWORD    pointer to ???
        WORD    number of items on menu???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0201h,INT 60/DI=0203h,INT 60/DI=0205h

Format of HP 95LX menu data:
Offset    Size    Description    (Table 2530)
 00h 80 BYTEs    first line of menu text
 50h 80 BYTEs    second line of menu text
 A0h 80 BYTEs    third line of menu text
 F0h    WORD    number of keywords
 F2h    WORD    index of currently highlighted keyword or FFFFh
 F4h    WORD    single prompt on top line if nonzero
 F6h 20 BYTEs    which line each of 20 keywords is located on
10Ah 20 BYTEs    offset of each of 20 keywords within its line
11Eh 20 BYTEs    length of each of 20 keywords
132h 20 BYTEs    first letter of each of 20 keywords
146h 20 WORDs    offsets of long prompts for each of 20 keywords
--------b-60----DI0201-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY OR REDISPLAY MENU
    DI = 0201h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to menu data (see #2530)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0202h,INT 60/DI=0206h
--------b-60----DI0202-----------------------
INT 60 u - HP 95LX System Manager - "MENU_ON" - ENABLE PROCESSING OF MENU
    DI = 0202h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to menu data (see #2530)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0201h,INT 60/DI=0203h
--------b-60----DI0203-----------------------
INT 60 u - HP 95LX System Manager - REMOVE MENU
    DI = 0203h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to menu data (see #2530)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0201h,INT 60/DI=0202h,INT 60/DI=0204h,INT 60/DI=0208h
--------b-60----DI0204-----------------------
INT 60 u - HP 95LX System Manager - LET SYSTEM MANAGER HANDLE MENU KEYSTROKE
    DI = 0204h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to menu data (see #2530)
        WORD    keystroke
        DWORD    pointer to WORD to receive selection number
Return: buffer for selection number filled with index of selected menu item or
      FFFFh if no final selection yet
    STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0202h,INT 60/DI=0207h
--------b-60----DI0205-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE FILE SELECTION MENU
    DI = 0205h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file menu structure (see #2531)
        DWORD    pointer to edit record (see #2534 at INT 60/DI=0400h)
        DWORD    pointer to wildcard filespec for initial file list
        WORD    row???
        WORD    column???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0200h,INT 60/DI=0206h,INT 60/DI=0208h

Format of HP 95LX file menu structure:
Offset    Size    Description    (Table 2531)
 00h    DWORD    pointer to ASCIZ base directory name
 04h    DWORD    pointer to ASCIZ file pattern (wildcard filespec)
 08h    DWORD    pointer to file list workspace, at least 1024 bytes (see #2532)
 0Ch    WORD    size of file list workspace in bytes
 0Eh    WORD    starting row (-3 is topmost, 0 is first non-"reserved" line)
 10h    WORD    starting column
 12h    WORD    number of lines
 14h    WORD    number of columns
 16h    WORD    number of files displayed on each line
---the remaining fields are initialized by the System Manager---
 18h    WORD    0000h if first edit character, else multiline
 1Ah    WORD    number of files in file list
 1Ch    WORD    max files workspace has room for
 1Eh    WORD    file at top of list
 20h    WORD    index of file to highlight
 22h    WORD    index of file to unhighlight
 24h    WORD    current focus (01h FMENU, 02h EDIT)

Format of HP 95LX file list workspace entry:
Offset    Size    Description    (Table 2532)
 00h    BYTE    file attributes
 01h    WORD    file time (see #1005 at INT 21/AX=5700h)
 03h    WORD    file date (see #1006 at INT 21/AX=5700h)
 05h    DWORD    file size
 09h 13 BYTEs    ASCIZ filename
--------b-60----DI0206-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY/REDISPLAY FILE SELECTION MENU
    DI = 0206h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file menu structure (see #2531)
        DWORD    pointer to edit record (see #2534 at INT 60/DI=0400h)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0205h
--------b-60----DI0207-----------------------
INT 60 u - HP 95LX System Manager - LET SYSMGR PROCESS FILE SEL MENU KEYSTROKE
    DI = 0207h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file menu structure (see #2531)
        DWORD    pointer to edit record (see #2534 at INT 60/DI=0400h)
        WORD    keystroke
Return: AX = status (see #2533)
    STACK unchanged
SeeAlso: INT 60/DI=0205h,INT 60/DI=0208h

(Table 2533)
Values for HP 95LX System Manager status:
 0000h    keystroke processed, call INT 60/DI=0206h to refresh menu
 0001h    redisplay application area before refreshing menu
 0002h    user confirmed selection, filename is in edit record's buffer
 0003h    user aborted menu
 FFFBh    bad filename
 FFFCh    bad directory
 FFFDh    bad drive
 FFFEh    unknown keystroke
 FFFFh    keystroke known but invalid in current context
--------b-60----DI0208-----------------------
INT 60 u - HP 95LX System Manager - REMOVE FILE SELECTION MENU
    DI = 0208h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file menu structure (see #2531)
        DWORD    pointer to edit record (see #2534 at INT 60/DI=0400h)
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0205h,INT 60/DI=0206h
--------b-60----DI0300-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY STRING
    DI = 0300h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    starting row (-3 is topmost, 0 is first user line)
        WORD    starting column
        DWORD    pointer to string
        WORD    length of string
        WORD    display style: 0000h normal, 0001h reverse video
        WORD    "OSTYLE"
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=1005h
--------b-60----DI0301-----------------------
INT 60 u - HP 95LX System Manager - CLEAR PORTION OF SCREEN
    DI = 0301h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    starting row (-3 is topmost, 0 is first user line)
        WORD    starting column
        WORD    number of rows
        WORD    number of columns
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0302h,INT 60/DI=1005h
--------b-60----DI0302-----------------------
INT 60 u - HP 95LX System Manager - SCROLL PORTION OF SCREEN
    DI = 0302h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    starting row???
        WORD    starting column???
        WORD    height of scroll region???
        WORD    width of scroll region???
        WORD    number of lines to scroll region???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0301h
--------b-60----DI0303-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_XCHG"
    DI = 0303h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0304-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRATTR"
    DI = 0304h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0305-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRRVRT"
    DI = 0305h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0307-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_CHRINV"
    DI = 0307h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0308-----------------------
INT 60 u - HP 95LX System Manager - SCREEN SERVICE "M_ROWS_COLS"
    DI = 0308h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI0309-----------------------
INT 60 u - HP 95LX System Manager - SET SCREEN (VIDEO???) MODE
    DI = 0309h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    new mode
Return: ???
    STACK unchanged
--------b-60----DI030A-----------------------
INT 60 u - HP 95LX System Manager - GET SCREEN (VIDEO???) MODE
    DI = 030Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI030B-----------------------
INT 60 u - HP 95LX System Manager - SET CURSOR POSITION
    DI = 030Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    row (-3 is topmost, 0 is first non-reserved line)
        WORD    column
Return: ???
    STACK unchanged
Note:    cursor is hidden if the specified position is not on the physical
      display
SeeAlso: INT 10/AH=02h,INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0400-----------------------
INT 60 u - HP 95LX System Manager - "EDIT_INIT"
    DI = 0400h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to edit record (see #2534)
        DWORD    pointer to string to be edited
        WORD    initial length of string being edited
        WORD    maximum length of edited string
        WORD    row of edit field
        WORD    leftmost column of edit field
Return: ???
    STACK unchanged

Format of HP 95LX edit record:
Offset    Size    Description    (Table 2534)
 00h    WORD    current length of edit buffer
 02h    BYTE    flag for special processing on first character
 03h    BYTE    flags
        bit 0: tab handling
 04h    WORD    editing in prompt window?
 06h    DWORD    pointer to top line of prompt window message
 0Ah    WORD    length of top line of prompt
 0Ch    DWORD    pointer to second line of prompt window message
 10h    WORD    length of second line of prompt
 12h 80 BYTEs    workspace for editing
 62h  2 WORDs    line array needed for multi-line editing
 66h 36 BYTEs    multi-line edit record (see #2535)
 8Ah    WORD    displayable columns

Format of HP 95LX multi-line edit record:
Offset    Size    Description    (Table 2535)
 00h    DWORD    pointer to user-supplied edit buffer
 04h    WORD    length of edit buffer
 06h    WORD    current cursor position
 08h    WORD    starting row of edit area (-3 is topmost, 0 is first user line)
 0Ah    WORD    starting column of edit area
 0Ch    WORD    height of edit area
 0Eh    WORD    width of edit area
 10h    WORD    current top row (-3 is topmost, 0 is first user line)
 12h    WORD    number of rows displayable
 14h    BYTE    cursor column
 15h    BYTE    01h if buffer has been modified
 16h    BYTE    first displayable column (ticker fields only)
 17h    BYTE    01h if wordwrap enabled, FFh if ticker field
 18h    DWORD    pointer to array of line starts (at least one bigger than edit
          area is high)
 1Ch    BYTE    currently marking?
 1Dh    BYTE    flag
 1Eh    WORD    offset of mark start
 20h    WORD    offset of mark end (inclusive)
 22h    WORD    displayable columns
--------b-60----DI0401-----------------------
INT 60 u - HP 95LX System Manager - EDIT ON TOP LINE
    DI = 0401h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to edit record (see #2534)
        DWORD    pointer to string to edit
        WORD    initial length of string being edited
        WORD    maximum length of edited string
        DWORD    pointer to first line of prompt
        WORD    length of first line
        DWORD    pointer to second line of prompt
        WORD    length of second line
Return: ???
    STACK unchanged
--------b-60----DI0402-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY OR REDISPLAY EDIT FIELD
    DI = 0402h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to edit record (see #2534)
Return: ???
    STACK unchanged
--------b-60----DI0403-----------------------
INT 60 u - HP 95LX System Manager - LET SYSTEM MANAGER PROCESS EDITING KEYSTROK
    DI = 0403h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to edit record (see #2534)
        WORD    keystroke
        DWORD    pointer to WORD buffer for result code
Return: result code buffer filled with 0001h if editing complete
    STACK unchanged
--------b-60----DI0404-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_INI"
    DI = 0404h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0405-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_DIS"
    DI = 0405h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0406-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_KEY"
    DI = 0406h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0407-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_FIL"
    DI = 0407h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0408-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_MARK"
    DI = 0408h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0409-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_UNMARK"
    DI = 0409h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI040A-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_CUTMARK"
    DI = 040Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI040B-----------------------
INT 60 u - HP 95LX System Manager - "MDIT_INS_STR"
    DI = 040Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0500-----------------------
INT 60 u - HP 95LX System Manager - OPEN FILE
    DI = 0500h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to filename
        WORD    length of filename
        WORD    ???
        WORD    suppress buffering if nonzero
Return: AX = status
    STACK unchanged
SeeAlso: INT 60/DI=0501h,INT 60/DI=0502h,INT 60/DI=0508h

Format of HP 95LX file state record:
Offset    Size    Description    (Table 2536)
 00h    WORD    DOS file handle
 02h    WORD    state flags (see #2537)
 04h    DWORD    current DOS physical file offset (FFFFFFFFh if unknown)
 08h    DWORD    DOS file offset of start of buffer
 0Ch    DWORD    effective file offset as seen by caller
 10h    WORD    number of bytes in file buffer
---buffered I/O only---
 12h 512 BYTEs    file buffer

Bitfields for HP 95LX file state flags:
Bit(s)    Description    (Table 2537)
 0    buffer contents valid
 1    buffer is dirty and must be written
 2    unbuffered I/O
 3    file is a character device
SeeAlso: #2536
--------b-60----DI0501-----------------------
INT 60 u - HP 95LX System Manager - OPEN FILE IN READ-ONLY MODE
    DI = 0501h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to filename
        WORD    length of filename
        WORD    ???
        WORD    suppress buffering if nonzero
Return: AX = status
    STACK unchanged
SeeAlso: INT 60/DI=0500h
--------b-60----DI0502-----------------------
INT 60 u - HP 95LX System Manager - CREATE NEW FILE
    DI = 0502h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to filename
        WORD    length of filename
        WORD    ???
        WORD    suppress buffering if nonzero
Return: AX = status
    STACK unchanged
SeeAlso: INT 60/DI=0500h,INT 60/DI=0503h
--------b-60----DI0503-----------------------
INT 60 u - HP 95LX System Manager - CREATE OR TRUNCATE FILE
    DI = 0503h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to filename
        WORD    length of filename
        WORD    ???
        WORD    suppress buffering if nonzero
Return: AX = status
    STACK unchanged
SeeAlso: INT 60/DI=0502h
--------b-60----DI0504-----------------------
INT 60 u - HP 95LX System Manager - READ FROM FILE
    DI = 0504h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to data buffer
        WORD    number of bytes to read
        DWORD    pointer to WORD in which to return actual bytes read
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0505h
--------b-60----DI0505-----------------------
INT 60 - HP 95LX System Manager - WRITE TO FILE
    DI = 0505h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to data
        WORD    length of data
Return: AX = status
    STACK unchanged
SeeAlso: INT 60/DI=0504h
--------b-60----DI0506-----------------------
INT 60 u - HP 95LX System Manager - SET FILE POSITION
    DI = 0506h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        2 WORDs    ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0507h
--------b-60----DI0507-----------------------
INT 60 u - HP 95LX System Manager - GET FILE POSITION
    DI = 0507h "M_TELL"
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
        DWORD    pointer to DWORD buffer for file position???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0506h
--------b-60----DI0508-----------------------
INT 60 u - HP 95LX System Manager - CLOSE FILE
    DI = 0508h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to file state record (see #2536)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0500h
--------b-60----DI0509-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_SETPAT"
    DI = 0509h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI050A-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_MATCH"
    DI = 050Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ??? (see #2538)
        DWORD    pointer to ???
Return: ???
    STACK unchanged

Format of HP 95LX pattern match control block:
Offset    Size    Description    (Table 2538)
 00h 43 BYTEs    FindFirst data block (see #0967 at INT 21/AH=4Eh)
 2Bh 80 BYTEs    full path name
 7Bh    BYTE    offset of last component of filename
 7Ch    BYTE    DOS function number (4Eh or 4Fh)
--------b-60----DI050B-----------------------
INT 60 u - HP 95LX System Manager - IDENTIFY FILENAME REFERENT
    DI = 050Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
Return: ??? = result (see #2539)
    ???
    STACK unchanged

(Table 2539)
Values returned by HP 95LX System Manager:
 0000h    nonexistent
 0001h    file
 0002h    directory
 0003h    character device
--------b-60----DI050C-----------------------
INT 60 u - HP 95LX System Manager - DELETE FILE
    DI = 050Ch "M_DELETE"
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI050D-----------------------
INT 60 u - HP 95LX System Manager - RENAME FILE
    DI = 050Dh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI050E-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GETDIR"
    DI = 050Eh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI050F-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_SETDIR"
    DI = 050Fh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0510-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_VOLUME"
    DI = 0510h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0511-----------------------
INT 60 u - HP 95LX System Manager - MAKE A SUBDIRECTORY
    DI = 0511h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 21/AH=39h,INT 60/DI=0512h
--------b-60----DI0512-----------------------
INT 60 u - HP 95LX System Manager - REMOVE A SUBDIRECTORY
    DI = 0512h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 21/AH=3Ah,INT 60/DI=0511h
--------b-60----DI0513-----------------------
INT 60 u - HP 95LX System Manager - GET DEFAULT DRIVE
    DI = 0513h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ??? buffer for current drive
Return: ???
    STACK unchanged
SeeAlso: INT 21/AH=19h,INT 60/DI=0514h
--------b-60----DI0514-----------------------
INT 60 u - HP 95LX System Manager - SET DEFAULT DRIVE
    DI = 0514h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    new drive
Return: ???
    STACK unchanged
SeeAlso: INT 21/AH=0Eh"DOS 1+",INT 60/DI=0513h
--------b-60----DI0515-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_FDATE"
    DI = 0515h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0516-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GET_SYSDIR"
    DI = 0516h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0517-----------------------
INT 60 u - HP 95LX System Manager - GET FILE ATTRIBUTES
    DI = 0517h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ??? buffer for file's attributes???
Return: ???
    STACK unchanged
SeeAlso: INT 21/AX=4300h,INT 60/DI=0518h
--------b-60----DI0518-----------------------
INT 60 u - HP 95LX System Manager - SET FILE ATTRIBUTES
    DI = 0518h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        WORD    new attributes???
Return: ???
    STACK unchanged
SeeAlso: INT 21/AX=4301h,INT 60/DI=0517h
--------b-60----DI0519-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_COMMON_OPEN"
    DI = 0519h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI051A-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_COPYDT"
    DI = 051Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI051B-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_GETFDT"
    DI = 051Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI051C-----------------------
INT 60 u - HP 95LX System Manager - FILE SERVICE "M_PUTFDT"
    DI = 051Ch
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0600-----------------------
INT 60 u - HP 95LX System Manager - PROCESS INITIALIZING
    DI = 0600h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0601h,INT 61"HP 95LX"
--------b-60----DI0601-----------------------
INT 60 u - HP 95LX System Manager - PROCESS TERMINATION
    DI = 0601h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: never
    STACK unchanged
SeeAlso: INT 21/AH=4Ch,INT 2F/AX=1122h,INT 60/DI=0600h
--------b-60----DI0602-----------------------
INT 60 u - HP 95LX System Manager - "M_LOCK" - PREVENT TASK SWITCHES
    DI = 0602h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=101Bh,INT 2F/AX=1681h,INT 60/DI=0603h
--------b-60----DI0603-----------------------
INT 60 u - HP 95LX System Manager - "M_UNLOCK" - ALLOW TASK SWITCHES
    DI = 0603h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=101Ch,INT 2F/AX=1682h,INT 60/DI=0602h
--------b-60----DI0604-----------------------
INT 60 u - HP 95LX System Manager - "M_SPAWN"
    DI = 0604h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 21/AH=4Bh
--------b-60----DI0605-----------------------
INT 60 u - HP 95LX System Manager - "M_APPCOUNT"
    DI = 0605h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI0606-----------------------
INT 60 u - HP 95LX System Manager - "M_REBOOT"
    DI = 0606h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 14/AH=17h"FOSSIL",INT 19
--------b-60----DI0607-----------------------
INT 60 u - HP 95LX System Manager - "M_SPAWNARG"
    DI = 0607h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0608-----------------------
INT 60 u - HP 95LX System Manager - "M_REG_APP_NAME"
    DI = 0608h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0609-----------------------
INT 60 u - HP 95LX System Manager - "M_APP_NAME"
    DI = 0609h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: DX:AX -> ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0700-----------------------
INT 60 u - HP 95LX System Manager - OPEN CLIPBOARD
    DI = 0700h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ??? = error code (see #2540)
    ???
    STACK unchanged
SeeAlso: INT 60/DI=0701h,INT 60/DI=0702h

(Table 2540)
Values for HP 95LX error code:
 0000h    successful
 FFF8h    transfer request out of bounds
 FFF9h    no such representation
 FFFAh    no representation open
 FFFBh    a representation is already open
 FFFCh    representation already exists
 FFFDh    heap allocation failure
 FFFEh    clipboard not open
 FFFFh    clipboard access denied
--------b-60----DI0701-----------------------
INT 60 u - HP 95LX System Manager - CLOSE CLIPBOARD
    DI = 0701h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0700h,INT 60/DI=0702h
--------b-60----DI0702-----------------------
INT 60 u - HP 95LX System Manager - RESET CLIPBOARD
    DI = 0702h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0700h
--------b-60----DI0704-----------------------
INT 60 u - HP 95LX System Manager - "M_NEW_REP" - START A NEW REPRESENTATION???
    DI = 0704h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0705h,INT 60/DI=0706h,INT 60/DI=0707h
--------b-60----DI0705-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_FINI_REP"
    DI = 0705h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0704h
--------b-60----DI0706-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_REP_NAME"
    DI = 0706h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0704h,INT 60/DI=0707h
--------b-60----DI0707-----------------------
INT 60 u - HP 95LX System Manager - CLIPBOARD SERVICE "M_REP_INDEX"
    DI = 0707h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0704h,INT 60/DI=0706h
--------b-60----DI0708-----------------------
INT 60 u - HP 95LX System Manager - WRITE TO CLIPBOARD
    DI = 0708h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to data to be written???
        WORD    length of data???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0709h
--------b-60----DI0709-----------------------
INT 60 u - HP 95LX System Manager - READ FROM CLIPBOARD
    DI = 0709h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        DWORD    pointer to buffer for data???
        WORD    length of buffer???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0708h
--------b-60----DI0800-----------------------
INT 60 u - HP 95LX System Manager - BEEP
    DI = 0800h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0801h,INT 60/DI=0802h,INT 60/DI=0803h
--------b-60----DI0801-----------------------
INT 60 u - HP 95LX System Manager - SOUND SERVICE "M_THUD"
    DI = 0801h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0802h,INT 60/DI=0803h
--------b-60----DI0802-----------------------
INT 60 u - HP 95LX System Manager - MAKE A SOUND PATTERN
    DI = 0802h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    pattern number (00h-06h)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0801h,INT 60/DI=0803h
--------b-60----DI0803-----------------------
INT 60 u - HP 95LX System Manager - TURN OFF SOUND
    DI = 0803h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0800h,INT 60/DI=0801h,INT 60/DI=0802h
--------b-60----DI0900-----------------------
INT 60 - HP 95LX System Manager - ALLOCATE REGULAR MEMORY BLOCK
    DI = 0900h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    size of block in bytes
Return: AX -> memory block
    STACK unchanged
Note:    System Manager-compliant applications are always small-model (64K code,
      64K data)
SeeAlso: INT 15/AX=4DD4h,INT 60/DI=0902h,INT 60/DI=0903h
--------b-60----DI0902-----------------------
INT 60 u - HP 95LX System Manager - FREE REGULAR MEMORY BLOCK
    DI = 0902h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    offset of memory block???
Return: ???
    STACK unchanged
Note:    System Manager-compliant applications are always small-model (64K code,
      64K data)
SeeAlso: INT 60/DI=0900h,INT 60/DI=0904h
--------b-60----DI0903-----------------------
INT 60 u - HP 95LX System Manager - ALLOCATE LARGE MEMORY BLOCK
    DI = 0903h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    size of block in bytes???
Return: AX -> memory block???
    STACK unchanged
SeeAlso: INT 60/DI=0900h,INT 60/DI=0904h
--------b-60----DI0904-----------------------
INT 60 u - HP 95LX System Manager - FREE LARGE MEMORY BLOCK
    DI = 0904h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    segment of memory block???
Return: AX -> ???
    STACK unchanged
SeeAlso: INT 60/DI=0902h,INT 60/DI=0903h
--------b-60----DI0B00-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DTINFO"
    DI = 0B00h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B01-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GETDTM"
    DI = 0B01h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B02-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SETDTM"
    DI = 0B02h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B03-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_XALARM"
    DI = 0B03h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0B04-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_ALARM"
    DI = 0B04h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to alarm record??? (see #2541)
        WORD    ???
Return: ???
    STACK unchanged

Format of HP 95LX alarm record:
Offset    Size    Description    (Table 2541)
 00h    BYTE    hour
 01h    BYTE    minute
 02h    BYTE    second
 03h    BYTE    unused padding
 04h    WORD    rescheduling interval, in seconds
 06h    BYTE    are seconds significant?
 07h    BYTE    alarm sound
 08h 40 BYTEs    message displayed when alarm activates
 30h    BYTE    task ID of owner
 31h    BYTE    application's own use for sub-class
 32h  4 BYTEs    application's own use for private data
--------b-60----DI0B05-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_SW"
    DI = 0B05h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B06-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SW"
    DI = 0B06h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B07-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_SW"
    DI = 0B07h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B08-----------------------
INT 60 u - HP 95LX System Manager - "M_TELLTIME" - DISPLAY TIMESTAMP
    DI = 0B08h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    timestamp format (see #2542)
        WORD    row (-3 is topmost, 0 is first non-reserved line)
        WORD    column
Return: ???
    STACK unchanged

Bitfields for HP 95LX timestamp format:
Bit(s)    Description    (Table 2542)
 1-0    timestamp components
    00 date only
    01 time only
    10 date and time
    11 day and date
 4    supply am/pm
 5    supply seconds
 6    show year
 7    four-digit year
--------b-60----DI0B09-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SETTINGS"
    DI = 0B09h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ??? (see #2543)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B0Ah,INT 60/DI=0B0Fh

Format of HP 95LX system settings:
Offset    Size    Description    (Table 2543)
 00h    WORD    country code
 02h    WORD    speaker volume (00h-03h or FFh for off)
 04h    WORD    contrast level (00h-0Fh)
 06h    WORD    week start (00h Sunday, 01h Monday)
 08h    WORD    punctuation format (see #2544)
 0Ah    WORD    two-character language code (only 5355h = "US" byte-swapped)
 0Ch    WORD    current date format (see #2545)
 0Eh    WORD    current time format (see #2546)
 10h    WORD    collating sequence
        00h numbers first, 01h letters first, 02h ASCII
 12h 80 BYTEs    name of picture file
 62h 30 BYTEs    name
 80h 30 BYTEs    title
 9Eh 28 BYTEs    company name
 BAh    WORD    number of languages
 BCh  6 BYTEs    available languages
 C2h 66 BYTEs    language menu
104h  2 BYTEs    ASCIZ date separator
106h  2 BYTEs    ASCIZ time separator
108h    BYTE    date order
109h    BYTE    use 24 hour time?
10Ah 16 BYTEs    currency string
11Ah    WORD    currency string position (00h prefix, 01h suffix)
11Ch    WORD    keyboard (see #2547)
11Eh    WORD    printer baud rate
        00h 300, 01h 1200, 02h 2400, 03h 4800, 04h 9600, 05h 19200
120h    WORD    printer driver code
        00h Epson FX80, 01h HP Laserjet, 02h IBM ProPrinter
122h    WORD    printer interface (00h COM1, 01h COM2, 02h IR, 03h LPT1)
124h    WORD    system manager interrupt (60h by default)
126h    WORD    code page (01h CP850, 02h CP437)
128h    WORD    active exit key
12Ah    WORD    active menu key
12Ch    WORD    active CHAR key toggle
12Eh  6 BYTEs    alarm

(Table 2544)
Values for HP 95LX punctuation format:
 code    decimal arg    thousands
 00h    .    ,    ,
 01h    ,    .    .
 02h    .    ;    ;
 03h    ,    ;    .
 04h    .    ,    " "
 05h    ,    .    " "
 06h    .    ;    " "
 07h    ,    ;    " "

(Table 2545)
Values for HP 95LX current date format:
 00h    dd-mmm-yy
 01h    dd-mmm
 02h    mmm-yy
 03h    mm/dd/yy
 04h    dd/mm/yy
 05h    dd.mm.yy
 06h    yy-mm-dd
 07h    mm/dd
 08h    dd/mm
 09h    dd.mm
 0Ah    mm-dd

(Table 2546)
Values for HP 95LX current time format:
 00h    HH:MM:SS am/pm
 01h    HH:MM am/pm
 02h    HH:MM:SS
 03h    HH.MM.SS
 04h    HH,MM,SS
 05h    HHhMMmSSs
 06h    HH:MM
 07h    HH.MM
 08h    HH,MM
 09h    HHhMMm

(Table 2547)
Values for HP 95LX keyboard layout:
 0001h    Belgium
 0002h    French Canadian
 0004h    Denmark
 0008h    Finland
 0010h    French
 0020h    Finland
 0040h    Italy
 0080h    Netherlands
 0100h    Norway
 0200h    Portugal
 0400h    Spain
 0800h    Sweden
 1000h    Swiss French
 2000h    Swiss German
 4000h    United Kingdom
 8000h    USA
--------b-60----DI0B0A-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SET_SETTINGS"
    DI = 0B0Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B09h
--------b-60----DI0B0B-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_TIMER"
    DI = 0B0Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B0Ch,INT 60/DI=0B0Dh
--------b-60----DI0B0C-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_TIMER"
    DI = 0B0Ch
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B0Bh,INT 60/DI=0B0Dh
--------b-60----DI0B0D-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_TIMER"
    DI = 0B0Dh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B0Bh,INT 60/DI=0B0Ch
--------b-60----DI0B0E-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_TELL_ANYTIME"
    DI = 0B0Eh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        WORD    ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI0B0F-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVCE "M_GET_SETTINGS_ADDR"
    DI = 0B0Fh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> system settings record (see #2543)
    STACK unchanged
SeeAlso: INT 60/DI=0B09h
--------b-60----DI0B10-----------------------
INT 60 u - HP 95LX System Manager - PARSE DATE SPECIFICATION
    DI = 0B10h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B11-----------------------
INT 60 u - HP 95LX System Manager - PARSE TIME SPECIFICATION
    DI = 0B11h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0B12-----------------------
INT 60 u - HP 95LX System Manager - SET DATE PARSING RULE
    DI = 0B12h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    new parsing rule (see #2548)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B13h

(Table 2548)
Values for HP 95LX date parsing rule:
 01h    day-month-year
 02h    month-day-year
 03h    year-month-day
 04h    "DMYO"
 05h    "MDYO"
 OR with 08h to get any year
--------b-60----DI0B13-----------------------
INT 60 u - HP 95LX System Manager - SET TIME PARSING RULE
    DI = 0B13h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    new parsing rule (see #2549)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0B12h

(Table 2549)
Values for HP 95LX time parsing rule:
 01h    HH:MM:SS (am/pm)
 02h    HH:MM:SS (24hr)
 03h    HHMM:SS (24hr)
 04h    HH:MM:SS.hh (24hr)
 05h    HH:MM (am/pm)
 06h    HH:MM (24hr)
 07h    HHMM (24hr)
--------b-60----DI0B14-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_POST_TIME"
    DI = 0B14h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI0B15-----------------------
INT 60 u - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DAY_TRIGGER"
    DI = 0B15h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0C00-----------------------
INT 60 u - HP 95LX System Manager - OPEN PRINTER
    DI = 0C00h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0C01h,INT 60/DI=0C02h,INT 60/DI=0C03h
--------b-60----DI0C01-----------------------
INT 60 u - HP 95LX System Manager - CLOSE PRINTER
    DI = 0C01h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
Note:    relinquishes control of printer
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C02-----------------------
INT 60 u - HP 95LX System Manager - WRITE TO PRINTER
    DI = 0C02h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to data to be written
        WORD    length of data
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C03-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE PRINTER
    DI = 0C03h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0C00h
--------b-60----DI0C04-----------------------
INT 60 u - HP 95LX System Manager - "M_TRANS_PRINTER"
    DI = 0C04h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0C05-----------------------
INT 60 u - HP 95LX System Manager - "M_FALL_PRINTER"
    DI = 0C05h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0E00-----------------------
INT 60 u - HP 95LX System Manager - COMMUNICATIONS SERVICE "M_COMM_INIT"
    DI = 0E00h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: #2550,INT 60/DI=0E01h,INT 60/DI=0E02h

(Table 2550)
Values for HP 95LX error code:
 0000h    successful
 FFF1h    "E_BUSY"
 FFF2h    timeout
 FFF3h    framing error
 FFF4h    parity error
 FFF5h    overrun error
 FFF6h    "E_EMPTY"
 FFF7h    "E_CONECT"
 FFF8h    not open
 FFF9h    out of memory
 FFFAh    buffer overflow
 FFFBh    "E_NOFIT"
 FFFCh    unsupported
 FFFDh    "E_IVOPR"
 FFFEh    "E_IVCHN"
 FFFFh    "E_REOPEN"
--------b-60----DI0E01-----------------------
INT 60 u - HP 95LX System Manager - OPEN COMMUNICATIONS CHANNEL
    DI = 0E01h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to WORD buffer for comm channel handle
        WORD    communications line number (01h-04h)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E00h,INT 60/DI=0E02h
--------b-60----DI0E02-----------------------
INT 60 u - HP 95LX System Manager - CLOSE COMMUNICATIONS CHANNEL
    DI = 0E02h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E00h,INT 60/DI=0E01h
--------b-60----DI0E03-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_GETMDM"
    DI = 0E03h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E04-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_ANSWER"
    DI = 0E04h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E05-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_DIAL"
    DI = 0E05h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0E06-----------------------
INT 60 u - HP 95LX System Manager - RESET COMMUNICATIONS CHANNEL
    DI = 0E06h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
        WORD    reset options (see #2551)
Return: ???
    STACK unchanged

Bitfields for HP 95LX reset options:
Bit(s)    Description    (Table 2551)
 0    reset line
 1    flush transmit buffer
 2    flush receive buffer
 3    reset modem
 4    reset receiver's ^S state
 5    reset transmitter's ^S state
--------b-60----DI0E07-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_HANGUP"
    DI = 0E07h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E08-----------------------
INT 60 u - HP 95LX System Manager - SEND DATA OVER COMM CHANNEL
    DI = 0E08h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
        DWORD    pointer to data to be sent
        WORD    option flags
            bit 0: send partial buffer
            bit 1: turn on receiver after sending
        DWORD    pointer to WORD containing length of data to be sent
Return: length WORD updated to contain number of bytes actually sent???
    STACK unchanged
SeeAlso: INT 60/DI=0E09h,INT 60/DI=0E0Bh
--------b-60----DI0E09-----------------------
INT 60 u - HP 95LX System Manager - QUERY COMM CHANNEL TRANSMIT QUEUE
    DI = 0E09h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ??? WORD
        DWORD    pointer to ??? WORD
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E0Ah
--------b-60----DI0E0A-----------------------
INT 60 u - HP 95LX System Manager - QUERY COMM CHANNEL RECEIVE QUEUE
    DI = 0E0Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
        DWORD    pointer to WORD to get receive buffer size
        DWORD    pointer to WORD to get free bytes in receive buffer
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E09h,INT 60/DI=0E0Bh
--------b-60----DI0E0B-----------------------
INT 60 u - HP 95LX System Manager - RECEIVE DATA FROM COMM CHANNEL
    DI = 0E0Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
        DWORD    pointer to data buffer
        DWORD    pointer to WORD (call) length of data buffer
                    (ret) number of bytes received
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E08h,INT 60/DI=0E0Ah
--------b-60----DI0E0C-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_HAZCMD"
    DI = 0E0Ch
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E0D-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_COMAND"
    DI = 0E0Dh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E0E-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_BREAK"
    DI = 0E0Eh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E0F-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_FRCXON"
    DI = 0E0Fh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E10-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_FRCXOF"
    DI = 0E10h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E11-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_SETDTR"
    DI = 0E11h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E12-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_XMITNG"
    DI = 0E12h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E13-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_STATUS"
    DI = 0E13h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E14-----------------------
INT 60 u - HP 95LX System Manager - SET COMMUNICATIONS SETTINGS
    DI = 0E14h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    comm channel handle
        DWORD    pointer to communications settings (see #2552)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E15h

Format of HP 95LX communications settings:
Offset    Size    Description    (Table 2552)
 00h    BYTE    dial type ('T' tone, 'P' pulse)
 01h    WORD    baud rate divisor (115200/baud_rate)
 03h    BYTE    parity (00h none, 08h odd, 18h even, 28h mark, 38h space)
 04h    BYTE    stop bits (00h one, 04h two)
 05h    BYTE    data bits - 5
 06h    BYTE    software handshake
        01h none, 02h XOFF/XON, 04h XOFF/any, 08h ENQ/ACK
 07h    BYTE    infrared (01h off, 02h on)
 08h    BYTE    duplex (01h half, 02h full)
 09h    BYTE    echo (01h echo, 02h no echo)
--------b-60----DI0E15-----------------------
INT 60 u - HP 95LX System Manager - GET COMMUNICATIONS SETTINGS
    DI = 0E15h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to buffer for settings (see #2552)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0E14h
--------b-60----DI0E16-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_CNFGUR"
    DI = 0E16h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI0E17-----------------------
INT 60 u - HP 95LX System Manager - "M_COMM_QRYERR"
    DI = 0E17h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI0F00-----------------------
INT 60 u - HP 95LX System Manager - "M_ERRMSG"
    DI = 0F00h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0F01-----------------------
INT 60 u - HP 95LX System Manager - DRAW STANDARD TITLE BOX
    DI = 0F01h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ASCIZ title string
Return: ???
    STACK unchanged
--------b-60----DI0F02-----------------------
INT 60 u - HP 95LX System Manager - "SHOWNAME"
    DI = 0F02h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI0F03-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY TWO-LINE MESSAGE BOX
    DI = 0F03h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to first line of message
        WORD    length of first line
        DWORD    pointer to second line of message
        WORD    length of second line
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0300h,INT 60/DI=0F04h,INT 60/DI=0F09h
--------b-60----DI0F04-----------------------
INT 60 u - HP 95LX System Manager - REMOVE MESSAGE BOX
    DI = 0F04h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=0F09h
--------b-60----DI0F05-----------------------
INT 60 u - HP 95LX System Manager - "M_COM_TIMER_ADDR"
    DI = 0F05h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI0F06-----------------------
INT 60 u - HP 95LX System Manager - "M_COM_TIMER_COUNT_ADDR"
    DI = 0F06h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI0F07-----------------------
INT 60 u - HP 95LX System Manager - "M_SYS_RSRC_ADDR"
    DI = 0F07h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI0F08-----------------------
INT 60 u - HP 95LX System Manager - "M_BIOS_OUTSTR"
    DI = 0F08h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI0F09-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY THREE-LINE MESSAGE BOX
    DI = 0F09h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to first line of message
        WORD    length of first line
        DWORD    pointer to second line of message
        WORD    length of second line
        DWORD    pointer to third line of message
        WORD    length of third line
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0F03h,INT 60/DI=0F04h
--------b-60----DI0F0A-----------------------
INT 60 u - HP 95LX System Manager - DISABLE MACROS
    DI = 0F0Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0F0Bh
--------b-60----DI0F0B-----------------------
INT 60 u - HP 95LX System Manager - ENABLE MACROS
    DI = 0F0Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 60/DI=0F0Ah
--------b-60----DI0F0C-----------------------
INT 60 u - HP 95LX System Manager - "M_DATE_TIME_SEPS"
    DI = 0F0Ch
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI0F0D-----------------------
INT 60 u - HP 95LX System Manager - "M_FORM_FT"
    DI = 0F0Dh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI0F0E-----------------------
INT 60 u - HP 95LX System Manager - "M_RAM_IV_INFO"
    DI = 0F0Eh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: DX:AX -> ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1005-----------------------
INT 60 u - HP 95LX System Manager - "M_DIRTY_SYNC" - FORCE SCREEN UPDATE
    DI = 1005h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
SeeAlso: INT 10/AH=FFh,INT 60/DI=0300h,INT 60/DI=0301h
--------b-60----DI1200-----------------------
INT 60 u - HP 95LX System Manager - RESOURCE SERVICE "MAP_RESOURCE_FILE"
    DI = 1200h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI1201-----------------------
INT 60 u - HP 95LX System Manager - "GET_RESOURCE_PTR"
    DI = 1201h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        WORD    ???
Return: DX:AX -> ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1202-----------------------
INT 60 u - HP 95LX System Manager - "GET_RSRC_TAB_PTR"
    DI = 1202h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: DX:AX -> ???
    STACK unchanged
--------b-60----DI1203-----------------------
INT 60 u - HP 95LX System Manager - "INIT_SYSMGR_RSRCS"
    DI = 1203h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: ???
    STACK unchanged
--------b-60----DI1300-----------------------
INT 60 u - HP 95LX System Manager - INITIALIZE HELP SYSTEM
    DI = 1300h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI1301-----------------------
INT 60 u - HP 95LX System Manager - DISPLAY HELP
    DI = 1301h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
--------b-60----DI1302-----------------------
INT 60 u - HP 95LX System Manager - "M_HELP_KEY"
    DI = 1302h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI1303-----------------------
INT 60 u - HP 95LX System Manager - "M_HELP_TERM"
    DI = 1303h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1400-----------------------
INT 60 u - HP 95LX System Manager - "M_ColInit"
    DI = 1400h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
Return: AX = ???
    STACK unchanged
--------b-60----DI1401-----------------------
INT 60 u - HP 95LX System Manager - "M_ColCpStr"
    DI = 1401h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI1402-----------------------
INT 60 u - HP 95LX System Manager - "M_ColLicsStr"
    DI = 1402h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1403-----------------------
INT 60 u - HP 95LX System Manager - "M_ColLicsChar"
    DI = 1403h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1404-----------------------
INT 60 u - HP 95LX System Manager - "M_ColToLower"
    DI = 1404h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI1405-----------------------
INT 60 u - HP 95LX System Manager - "M_ColCpSearch"
    DI = 1405h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
        DWORD    pointer to ???
        WORD    ???
        WORD    ???
Return: ???
    STACK unchanged
--------b-60----DI1406-----------------------
INT 60 u - HP 95LX System Manager - "M_ColToUpper"
    DI = 1406h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        DWORD    pointer to ???
        WORD    ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1500-----------------------
INT 60 u - HP 95LX System Manager - "GrDispInit"
    DI = 1500h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1501-----------------------
INT 60 u - HP 95LX System Manager - "GrDispClear"
    DI = 1501h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1502-----------------------
INT 60 u - HP 95LX System Manager - "GrDispDot"
    DI = 1502h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1503-----------------------
INT 60 u - HP 95LX System Manager - "GrDispDraw"
    DI = 1503h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1504-----------------------
INT 60 u - HP 95LX System Manager - "GrDispFill"
    DI = 1504h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1505-----------------------
INT 60 u - HP 95LX System Manager - "GrDispRead"
    DI = 1505h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1506-----------------------
INT 60 u - HP 95LX System Manager - "GrDispString"
    DI = 1506h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1507-----------------------
INT 60 u - HP 95LX System Manager - "GrDispPan"
    DI = 1507h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1508-----------------------
INT 60 u - HP 95LX System Manager - "GrDispZoom"
    DI = 1508h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI1509-----------------------
INT 60 u - HP 95LX System Manager - "GrDispSave"
    DI = 1509h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI150A-----------------------
INT 60 u - HP 95LX System Manager - "GrDispRestore"
    DI = 150Ah
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
--------b-60----DI150B-----------------------
INT 60 u - HP 95LX System Manager - "GrDispCorner"
    DI = 150Bh
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------b-60----DI1604-----------------------
INT 60 u - HP 95LX System Manager - "CP_TO_LICS"
    DI = 1604h
    STACK:    2 WORDs unused dummies (for calls from high level languages)
        ???
Return: ???
    STACK unchanged
SeeAlso: INT 15/AX=4DD4h,INT 61"HP 95LX",INT 62"HP 95LX"
--------G-6000-------------------------------
INT 60 - SYS_PROF.EXE - PROFILER STATUS
    AH = 00h
Return: AX = 0000h    profiling is off
        otherwise profiling is on
Note:    SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
      Issue 47
SeeAlso: AH=01h"SYS_PROF",AH=02h"SYS_PROF"
--------G-6000-------------------------------
INT 60 - MDEBUG - GET STATUS
    AH = 00h
    DS:SI -> password or a null byte
Return: AX = return code
        FFFEh password is invalid
        FFFDh display mode is invalid
        else successful
        ES = value of the monitor register SE
        DI = value of the monitor register OF
        CH = monitor color
        CL = interpreter color
        BH = monitor start line
        BL = interpreter start line
        AH = makecode of the hotkey
        AL = ASCII code of the hotkey
        DL = status of special keys (only SHIFT, ALT, CTRL) for the
              hotkey (coded as for the keyboard flag at 0040h:0017h)
        DH = basic process number for the communication with drivers
              process number for the display driver, DH+1 = process
              number for the command driver(s)
    DS:SI -> MDEBUG identification table (see #2553)
Program: MDEBUG is a shareware memory-resident debugging tool by Bernd
      Schemmer, including a memory monitor, an interpreter, and a
      disassembler
Notes:    MDEBUG uses INT 60 by default, but may be directed to any of INT 60
      through INT 67; the interrupt handler is preceded by the signature
      "USERINT" and is not chained
    if DS:SI points at a null byte, MDEBUG will prompt for a password if
      passwords are active; enough stack space must be provided for an
      INT 10h call (which MDEBUG uses while prompting for the password)
SeeAlso: AH=02h"MDEBUG"
Index:    hotkeys;MDEBUG

Format of MDEBUG identification table:
Offset    Size    Description    (Table 2553)
 -2    WORD    entry offset
 00h    WORD    CS of MDEBUG
 02h    DWORD    old INT 08h vector
 06h    DWORD    old INT 09h vector
 0Ah    DWORD    address INT 16h routine used by MDEBUG
 0Eh    BYTE    length of version string
 0Fh  N BYTEs    version string
--------N-600000-----------------------------
INT 60 - RIFS - CLIENT - INSTALLATION CHECK
    AX = 0000h
Return: AX = 1234h if installed
    CF clear
Program: RIFS is the Remote Installable File System by "kyle"
Range:    INT 60 to INT 66 and INT 18,selected by scanning for 0000h:0000h vector
Note:    the installation check consists of testing for the signature "RIFS"
      immediately preceding the interrupt handler
SeeAlso: AX=0001h,AX=0005h,AX=0007h,AX=0008h,INT 2F/AX=5600h
--------N-600001-----------------------------
INT 60 - RIFS - CLIENT - UNINSTALL
    AX = 0001h
Return: CF clear if successful
SeeAlso: AX=0000h,AX=0009h
--------N-600002-----------------------------
INT 60 - RIFS - CLIENT - REMAP DRIVE
    AX = 0002h
    BH = local drive number
    BL = remote drive number
Return: CF clear if successful
    CF set on error
SeeAlso: AX=0000h,AX=0003h,AX=0004h,INT 21/AX=5F03h,INT 21/AX=5F05h"STARLITE"
--------N-600003-----------------------------
INT 60 - RIFS - CLIENT - UNMAP DRIVE
    AX = 0003h
    BL = drive to unmap
Return: CF clear if successful
    CF set on error
SeeAlso: AX=0000h,AX=0002h,AX=0004h,INT 21/AX=5F04h,INT 21/AX=5F06h"STARLITE"
--------N-600004-----------------------------
INT 60 - RIFS - CLIENT - UNMAP ALL DRIVES
    AX = 0004h
Return: CF clear if successful
    CF set on error
SeeAlso: AX=0000h,AX=0002h,AX=0003h
--------N-600005-----------------------------
INT 60 - RIFS - CLIENT - GET TRANSLATION TABLE
    AX = 0005h
Return: CF clear if successful
        ES:BX -> translation table
    CF set on error
SeeAlso: AX=0000h,AX=0006h,AX=0007h
--------N-600006-----------------------------
INT 60 - RIFS - CLIENT - GET STATISTICS TABLE
    AX = 0006h
Return: CF clear if successful
        ES:BX -> statistics table
    CF set on error
SeeAlso: AX=0000h,AX=0005h,AX=0007h,AX=000Ah
--------N-600007-----------------------------
INT 60 - RIFS - CLIENT - GET PORT TRANSLATION TABLE
    AX = 0007h
Return: CF clear if successful
        CX = number of entries
        ES:BX -> port mapping table
    CF set on error
SeeAlso: AX=0000h,AX=0005h
--------N-600008-----------------------------
INT 60 - RIFS - SERVER - INSTALLATION CHECK
    AX = 0008h
Return: CF clear if successful
    CF set on error
Range:    INT 60 to INT 66 and INT 18,selected by scanning for 0000h:0000h vector
Note:    the installation check consists of testing for the signature "RIFS"
      immediately preceding the interrupt handler
SeeAlso: AX=0000h,AX=0009h,AX=000Ah,AX=000Bh
--------N-600009-----------------------------
INT 60 - RIFS - SERVER - UNINSTALL
    AX = 0009h
Return: CF clear if successful
    CF set on error
SeeAlso: AX=0001h,AX=0008h
--------N-60000A-----------------------------
INT 60 - RIFS - SERVER - GET STATISTICS TABLE
    AX = 000Ah
Return: CF clear if successful
        ES:BX -> statistics table
    CF set on error
SeeAlso: AX=0006h,AX=0008h,AX=0009h,AX=000Bh
--------N-60000B-----------------------------
INT 60 - RIFS - SERVER - RESET
    AX = 000Bh
Return: CF clear if successful
    CF set on error
Note:    closes all open files
SeeAlso: AX=0008h,AX=0009h
--------G-6001-------------------------------
INT 60 - MDEBUG - GET ADDRESS OF THE HELP REGISTERS
    AH = 01h
    DS:SI -> password or a null byte
Return: AX = return code
        FFFEh password is invalid
        FFFDh display mode is invalid
        else successful
        ES:DI point to the help registers of MDEBUG
           ES:DI-02h  -> R0 (WORD)
           ES:DI      -> R1 (WORD)
           ES:DI+02h  -> R2 (WORD)
           ES:DI+04h  -> R3 (WORD)
           ...
           ES:DI+0Eh  -> R8 (WORD)
--------G-6001-------------------------------
INT 60 - SYS_PROF.EXE - TURN PROFILING OFF
    AH = 01h
Note:    SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
      Issue 47
SeeAlso: AH=00h"SYS_PROF",AH=02h"SYS_PROF"
--------N-6001FF-----------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - GET DRIVER INFO
    AX = 01FFh
    BX = handle returned by function 02h
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
        BX = version
        CH = network interface class (see #2555)
        DX = interface type (see #2555)
        CL = number
        DS:SI -> name
        AL = driver functions supported
        01h basic
        02h basic and extended
        05h basic and high-performance
        06h basic, high-performance, and extended
        FFh not installed
Note:    the handle in BX is optional for drivers written to v1.07 or later of
      the packet driver specification

(Table 2554)
Values for Packet Driver error code:
 01h "BAD_HANDLE"    invalid handle number
 02h "NO_CLASS"        no interfaces of the specified class found
 03h "NO_TYPE"        no interfaces of the specified type found
 04h "NO_NUMBER"    no interfaces of the specified number found
 05h "BAD_TYPE"        bad packet type
 06h "NO_MULTICAST"    interface does not support multicast messages
 07h "CANT_TERMINATE"    this packet driver cannot terminate
 08h "BAD_MODE"        invalid receiver mode
 09h "NO_SPACE"        insufficient space
 0Ah "TYPE_INUSE"    type accessed but never released
 0Bh "BAD_COMMAND"    bad command
 0Ch "CANT_SEND"    packet could not be sent
 0Dh "CANT_SET"        hardware address could not be changed
 0Eh "BAD_ADDRESS"    hardware address has a bad length or format
 0Fh "CANT_RESET"    could not reset interface

(Table 2555)
Values for Packet Driver network interface classes/types:
    Class 01h  Ethernet/IEEE 802.3
    01h 3COM 3C500/3C501
    02h 3COM 3C505
    03h MICOM-Interlan NI5010
    04h BICC Data Networks 4110
    05h BICC Data Networks 4117
    06h MICOM-Interlan NP600
    08h Ungermann-Bass PC-NIC
    09h Univation NC-516
    0Ah TRW PC-2000
    0Bh MICOM-Interlan NI5210
    0Ch 3COM 3C503
    0Dh 3COM 3C523
    0Eh Western Digital WD8003
    0Fh Spider Systems S4
    10h Torus Frame Level
    11h 10Net Communications
    12h Gateway PC-bus
    13h Gateway AT-bus
    14h Gateway MCA-bus
    15h IMC PCnic
    16h IMC PCnic II
    17h IMC PCnic 8-bit
    18h Tigan Communications
    19h Micromatic Research
    1Ah Clarkson "Multiplexor"
    1Bh D-Link 8-bit
    1Ch D-Link 16-bit
    1Dh D-Link PS/2
    1Eh Research Machines 8
    1Fh Research Machines 16
    20h Research Machines MCA
    21h Radix Microsystems EXM1 16-bit
    22h Interlan Ni9210
    23h Interlan Ni6510
    24h Vestra LANMASTER 16-bit
    25h Vestra LANMASTER 8-bit
    26h Allied Telesis PC/XT/AT
    27h Allied Telesis NEC PC-98
    28h Allied Telesis Fujitsu FMR
    29h Ungermann-Bass NIC/PS2
    2Ah Tiara LANCard/E AT
    2Bh Tiara LANCard/E MC
    2Ch Tiara LANCard/E TP
    2Dh Spider Communications SpiderComm 8
    2Eh Spider Communications SpiderComm 16
    2Fh AT&T Starlan NAU
    30h AT&T Starlan-10 NAU
    31h AT&T Ethernet NAU
    32h Intel smart card
    33h Xircom Packet Adapter
    34h Aquila Ethernet
    35h Novell NE1000
    36h Novell NE2000
    37h SMC PC-510
    38h AT&T Fiber NAU
    39h NDIS to Packet Driver adapter
    3Ah Racal-InterLan ES3210
    3Bh General Systems ISDN simulated Ethernet
    3Ch Hewlett-Packard
    3Dh IMC EtherNic-8
    3Eh IMC EtherNic-16
    3Fh IMC EtherNic-MCA
    40h NetWorth EtherNext
    41h Dataco Scanet
    42h DEC DEPCA
    43h C-Net
    44h Gandalf LANLine
    45h Apricot built-in
    46h David Systems Ether-T
    47h ODI to Packet Driver adapter (see also INT 2F/AX=5100h)
    48h AMD Am21110-16
    49h Intel ICD Network controller family
    4Ah Intel ICD PCL2
    4Bh Intel ICD PCL2A
    4Ch AT&T LANPacer
    4Dh AT&T LANPacer+
    4Eh AT&T EVB
    4Fh AT&T StarStation
    50h SLIP simulated ethernet
    51h Racal-Interlan NIA310
    52h Racal-Interlan NISE
    53h Racal-Interlan NISE30
    54h Racal-Interlan NI6610
    55h Ethernet over IP/UDP
    56h ICL EtherTeam 16
    57h David Systems
    58h NCR WaveLAN
    59h Thomas Contrad TC5045
    5Ah Russ Nelson's Parallel Port driver
    5Bh Intell EtherExpress 16
    5Ch IBMTOKEN
    5Dh Zenith Z-Note
    5Eh 3Com 3C509
    5Fh Mylex LNE390
    60h Madge Smart Ringnode
    61h Novell NE2100
    62h Allied Telesis 1500
    63h Allied Telesis 1700
    64h Fujitsu EtherCoupler
    Class 02h  ProNET-10
    01h Proteon p1300
    02h Proteon p1800
    Class 03h  IEEE 802.5/ProNet-4 (without expanded RIFs)
    01h IBM Token-Ring Adapter
    02h Proteon p1340
    03h Proteon p1344
    04h Gateway PC-bus
    05h Gateway AT-bus
    06h Gateway MCA-bus
    07h Madge board
    39h NDIS to Packet Driver adapter
    47h ODI to Packet Driver adapter
    Class 04h  Omninet
    Class 05h  Appletalk
    01h ATALK.SYS adapter
    Class 06h  Serial Line
    01h Clarkson 8250-SLIP
    02h Clarkson "Multiplexor"
    03h Eicon Technologies
    Class 07h  StarLAN (subsumed by Ethernet class)
    Class 08h  ARCnet
    01h Datapoint RIM
    Class 09h  AX.25
    01h Ottawa PI card
    02h Eicon Technologies
    Class 0Ah  KISS
    Class 0Bh  IEEE 802.3 with 802.2 headers
    types same as for class 01h
    Class 0Ch  FDDI with 802.2 headers
    01h Western Digital
    02h Frontier Technology
    Class 0Dh  Internet X.25
    01h Western Digital
    02h Frontier Technology
    03h Emerging Technologies
    04h The Software Forge
    05h Link Data Intelligent X.25
    06h Eicon Technologies
    Class 0Eh  N.T. LANSTAR (encapsulating DIX Ethernet)
    01h NT LANSTAR/8
    02h NT LANSTAR/MC
    Class 0Fh  SLFP (MIT serial specification)
    01h MERIT
    Class 10h  PPP (Point-to-Point Protocol)
    01h 8250/16550 UART
    02h Niwot Networks synch
    03h Eicon Technologies
    Class 11h  802.5 with expanded RIFs
    types same as for class 3
    Class 12h  reserved for LCP/NCPs
Note: class and type numbers are cleared through FTP Software
--------G-6002-------------------------------
INT 60 - MDEBUG - SET STATUS
    AH = 02h
    DS:SI -> password or a null byte
    ES = new value for the register SE
    DI = new value for the register OF
    CH = new monitor color if nonzero
    CL = new interpreter color if nonzero
    BH = new monitor start line if nonzero
    BL = new interpreter start line if nonzero
    AL = new ASCII code for the hotkey ('A'..'Z', 'a'..'z') if nonzero
    DL = new status of the special keys (SHIFT, ALT, CTRL) for the hotkey
          if nonzero
    DH = if nonzero, new basic process number for communication with the
          drivers (DH = multiplex number for the display driver,
          DH+1 = multiplex number for the command driver or drivers)
Return: AX = return code
        FFFFh call not allowed
        FFFEh password is invalid
        FFFDh display mode is invalid
        0000h successful, status changed
        else AL = error reasons (see #2556)
Note:    the values of the registers SE and OF are always changed, the other
      values are only changed if they are valid
SeeAlso: AH=00h"MDEBUG"
Index:    hotkeys;MDEBUG

Bitfields for MDEBUG error reasons:
Bit(s)    Description    (Table 2556)
 0    invalid monitor start line
 1    invalid interpreter start line
 2    invalid hotkey
 3    invalid process number
 4-7    reserved
--------N-6002-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - ACCESS TYPE
    AH = 02h
    AL = interface class
    BX = interface type
    DL = interface number
    DS:SI -> type
    CX = length of type (0000h for all packets)
    ES:DI -> receiver function (see #2557)
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
        AX = handle
SeeAlso: AH=03h"FTP"

(Table 2557)
Values packet driver receiver is called with when a packet is received:
    AX = subfunction
        00h get packet buffer
        CX = buffer length
        DX = lookahead length (v1.10+)
        DS:SI -> lookahead buffer if DX nonzero (v1.10+)
        DI = error flags (class dependent) (v1.10+)
        Return: ES:DI -> packet buffer
                0000h:0000h means throw away packet
            CX = size of buffer (v1.10+), may be smaller than
                  incoming data
        01h copy completed
        DS:SI -> buffer
        CX = bytes actually copied (v1.10+)
    BX = handle
--------G-6002-------------------------------
INT 60 - SYS_PROF.EXE - TURN PROFILING ON
    AH = 02h
Note:    SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
      Issue 47
SeeAlso: AH=00h"SYS_PROF",AH=01h"SYS_PROF"
--------G-6003-------------------------------
INT 60 - MDEBUG - POP UP
    AH = 03h
    DS:SI -> password or a null byte
    ES -> new value for the register SE
    DI -> new value for the register OF
Return: AX = return code (see #2558)
SeeAlso: AH=04h"MDEBUG"

(Table 2558)
Values for MDEBUG return code:
 FFFFh    call not allowed
 FFFEh    password is invalid
 FFFDh    display mode is invalid
 else    successful
--------N-6003-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RELEASE TYPE
    AH = 03h
    BX = handle
Return: CF set on error
       DH = error code (see #2554)
    CF clear if successful
SeeAlso: AH=02h"FTP"
--------G-6003-------------------------------
INT 60 - SYS_PROF.EXE - GET ADDRESS OF PROFILING TABLE
    AH = 03h
Return: ES:BX -> profiling table
Note:    SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
      Issue 47
SeeAlso: AH=04h"SYS_PROF"
--------N-6004-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - SEND PACKET
    AH = 04h
    DS:SI -> buffer
    CX = length
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
Note:    the buffer may be modified immediately upon return from this call
SeeAlso: AH=0Bh
--------G-6004-------------------------------
INT 60 - MDEBUG - POP UP
    AH = 04h
    DS:SI -> password or a null byte
Return: AX = return code (see #2558)
SeeAlso: AH=03h"MDEBUG",AH=07h"MDEBUG"
--------G-6004-------------------------------
INT 60 - SYS_PROF.EXE - CLEAR PROFILING TABLE
    AH = 04h
Note:    SYS_PROF.EXE is the TSR portion of a profiler from Micro Cornucopia
      Issue 47
SeeAlso: AH=03h"SYS_PROF"
--------N-6005-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - TERMINATE DRIVER FOR HANDLE
    AH = 05h
    BX = handle (optional for v1.10+)
Return: CF set on error
       DH = error code (see #2554)
    CF clear if successful
--------G-6005-------------------------------
INT 60 - MDEBUG - GET AND SET MDEBUG FLAGS
    AH = 05h
    DS:SI -> password or a null byte
    BL = new value for the semaphor of MDEBUG
         00h  enable popup of MDEBUG
         else disable popup of MDEBUG
Return: AX = return code
        FFFEh password is invalid
        FFFDh display mode is invalid
        else successful
        BL = old value of the semaphor of MDEBUG
        BH = old value of the INT 08h semaphor
            (this semaphor is always reset after this function)
--------N-6006-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - GET ADDRESS
    AH = 06h
    BX = handle (optional for v1.10+)
    ES:DI -> buffer
    CX = length
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
        CX = length
Note:    copies the local net address associated with the handle into the buffer
--------G-6006-------------------------------
INT 60 - MDEBUG - GET PASSWORD STATUS
    AH = 06h
Return: AL = status
        00h password inactive
        01h password active
--------N-6007-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RESET INTERFACE
    AH = 07h
    BX = handle (optional for v1.10+)
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
--------G-6007-------------------------------
INT 60 - MDEBUG v1.70+ - GET ACTIVE PART OF MDEBUG
    AH = 07h
Return: AL = active part for the next popup session of MDEBUG:
        bit 0: the next popup session will start in the interpreter rather
          than in the monitor
        bit 1: the next popup session will sart in the online-help
SeeAlso: AH=03h"MDEBUG",AH=04h"MDEBUG"
--------G-6008-------------------------------
INT 60 - MDEBUG - UNUSED
    AH = 08h-FFh
Return: AX = FFFCh
--------N-600A-------------------------------
INT 60 - FTP Packet Driver 1.09+ - HIGH-PERF FUNC - GET PARAMETERS
    AH = 0Ah
Return: CF set on error
        DH = error code (0Bh) (see #2554)
    CF clear if successful
        ES:DI -> parameter table (see #2559)

Format of packet driver parameter table:
Offset    Size    Description    (Table 2559)
 00h    BYTE    major revision of packet driver spec driver conforms to
 01h    BYTE    minor revision of packet driver spec
 02h    BYTE    length of this structure in bytes
 03h    BYTE    length of a MAC-layer address
 04h    WORD    maximum transfer unit, including MAC headers
 06h    WORD    buffer size for multicast addr
 08h    WORD    number of receive buffers (one less than back-to-back MTU rcvs)
 0Ah    WORD    number of transmit buffers
 0Ch    WORD    interrupt number to hook for post-EOI processing, 00h=none
--------N-600B-------------------------------
INT 60 - FTP Packet Driver 1.09 - HIGH-PERF FUNC - ASYNCHRONOUS SEND PACKET
    AH = 0Bh
    DS:SI -> buffer
    CX = length of buffer
    ES:DI -> FAR function to call when buffer becomes available (see #2560)
Return: CF set on error
        DH = error code (0Bh,0Ch) (see #2554)
    CF clear if successful
Notes:    unlike function 04h, the buffer is not available for modification as
      soon as the call returns; the buffer may be queued by the driver and
      not processed until later
    this function has been dropped from v1.10+ of the specification and
      replaced by function 0Ch
SeeAlso: AH=04h"Packet Driver",AH=0Ch"Packet Driver"

(Table 2560)
Values packet driver completion function is called with:
    AX = result
        00h copy OK
        nonzero error
    ES:DI -> buffer passed to INT 60/AH=0Bh call
--------N-600C-------------------------------
INT 60 - FTP Packet Driver 1.10+ - HIGH-PERF FUNC - ASYNCHRONOUS SEND PACKET
    AH = 0Ch
    ES:DI -> pointer to IOCB (see #2561)
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
SeeAlso: AH=04h"Packet Driver",AH=0Bh"Packet Driver"

Format of packet driver IOCB:
Offset    Size    Description    (Table 2561)
 00h    DWORD    pointer to buffer
 04h    WORD    length of buffer
 06h    BYTE    flags
        bit 0: packet driver is finished with IOCB
        bit 1: application requests upcall when driver completes
 07h    DWORD    function address for upcall (see #2562)
 0Bh  4 BYTEs    future gather write
 0Fh    BYTE    ???
 10h  8 BYTEs    private driver workspace

(Table 2562)
Values completion function is called with:
    ES:DI -> IOCB passed to INT 60/AH=0Ch
--------N-600C-------------------------------
INT 60 - Banyan VINES, 3com - GET STATION ADDRESS
    AH = 0Ch
Return: AL = status
        00h successful
        ES:SI -> 6-byte station address
        02h semaphore service is unavailable
--------N-600D-------------------------------
INT 60 - FTP Packet Driver 1.10+ - HIGH-PERF FUNC - DROP PACKET FROM QUEUE
    AH = 0Dh
    ES:DI -> IOCB
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
SeeAlso: AH=0Ch"Packet Driver"
--------N-6011-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - LOCK AND WAIT
    AH = 11h
    AL = drive number or 0
    DX = number of seconds to wait
    ES:SI = Ethernet address or 0
    DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see #2563)
SeeAlso: AH=12h,AH=13h

(Table 2563)
Values for 3com semaphore status:
 00h    successful
 01h    timeout
 02h    server not responding
 03h    invalid semaphore name
 04h    semaphore list is full
 05h    invalid drive ID
 06h    invalid Ethernet address
 07h    not logged in
 08h    write to network failed
 09h    semaphore already logged for this CPU
--------N-6012-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - LOCK
    AH = 12h
    AL = drive number or 00h
    ES:SI = Ethernet address or 0000h:0000h
    DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also #2563)
        01h semaphore currently locked by another PC
Note:    unlike function 11h, this function returns immediately
SeeAlso: AH=11h,AH=13h
--------N-6013-------------------------------
INT 60 - 3com, 10NET, Banyan VINES - UNLOCK
    AH = 13h
    AL = drive number or 00h
    ES:SI = Ethernet address or 0000h:0000h
    DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also #2563)
        01h semaphore not locked
SeeAlso: AH=11h,AH=12h
--------N-6014-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET RECEIVE MODE
    AH = 14h
    BX = handle (optional for v1.10+)
    CX = mode (see #2564)
Return: CF set on error
       DH = error code (01h,08h) (see #2554)
    CF clear if successful
SeeAlso: AH=15h

(Table 2564)
Values for packet driver receive mode:
 01h    turn off receiver
 02h    receive only packets sent to this interface
 03h    mode 2 plus broadcast packets
 04h    mode 3 plus limited multicast packets
 05h    mode 3 plus all multicast packets
 06h    all packets
 07h    raw mode for serial line only (v1.10+)
--------N-6015-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET RECEIVE MODE
    AH = 15h
    BX = handle (optional for v1.10+)
Return: CF set on error
        DH = error code (01h) (see #2554)
    CF clear if successful
        AX = receive mode (see #2564)
SeeAlso: AH=14h
--------N-6016-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET MULTICAST LIST
    AH = 16h
    ES:DI -> multicast list
    CX = length of list in bytes
Return: CF set on error
        DH = error code (06h,09h,0Eh) (see #2554)
    CF clear if successful
SeeAlso: AH=17h
--------N-6017-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET MULTICAST LIST
    AH = 17h
Return: CF set on error
        DH = error code (06h,09h) (see #2554 at AX=01FFh)
    CF clear if successful
        ES:DI -> multicast addresses (do not modify)
        CX = bytes of multicast addresses currently in use
SeeAlso: AH=16h
--------N-6018-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET STATISTICS
    AH = 18h
    BX = handle (optional for v1.10+)
Return: CF set on error
        DH = error code (01h) (see #2554)
    CF clear if successful
        DS:SI -> statistics (see #2565)

Format of packet driver statistics:
Offset    Size    Description    (Table 2565)
 00h    DWORD    packets in
 04h    DWORD    packets out
 08h    DWORD    bytes in
 0Ch    DWORD    bytes out
 10h    DWORD    errors in
 14h    DWORD    errors out
 18h    DWORD    packets dropped
--------N-6019-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET NETWORK ADDRESS
    AH = 19h
    ES:DI -> address
    CX = length of address
Return: CF set on error
        DH = error code (0Dh,0Eh) (see #2554)
    CF clear if successful
        CX = length
--------N-601A-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - SEND RAW BYTES
    AH = 1Ah
    DS:SI -> buffer
    CX = length of buffer
Return: CF set on error
        DH = error code (see #2554 at AX=01FFh)
    CF clear if successful
SeeAlso: AH=1Ch
--------N-601B-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - FLUSH RAW BYTES RECEIVED
    AH = 1Bh
Return: CF set on error
        DH = error code (see #2554)
    CF clear if successful
SeeAlso: AH=1Ch
--------N-601C-------------------------------
INT 60 - FTP Packet Driver v1.10+ - EXTENDED FUNC - FETCH RAW BYTES RECEIVED
    AH = 1Ch
    DS:SI -> buffer
    CX = length of buffer
    DX = timeout in clock ticks
Return: CF set on error
        DH = error code (see #2554 at AX=01FFh)
    CF clear if successful
        CX = number of bytes transferred to buffer
SeeAlso: AH=1Ah,AH=1Bh
--------a-60AD-------------------------------
INT 60 - AccessDOS - API
    AH = ADh
    AL = function
        E1h ???
        Return: AX = ???
        E2h get configuration
        Return: BX:AX -> configuration data
Program: AccessDOS is a public domain TSR developed at The Trace Research and
      Development Center which provides extensions for keyboard, mouse,
      and sound access by the visually, hearing, or motor-control
      impaired.
Range:    INT 60 to INT 66, selected by scanning for 0000h:0000h vector
Note:    the installation check is to test for the signature "ACCESSv1.00"
      beginning three bytes past the start of the interrupt handler
--------N-60E9-------------------------------
INT 60 - FTP Packet Driver - Crynwr Software - AUTOSELECT TRANSCEIVER
    AH = E9h
    ???
Return: ???
--------!---Section--------------------------