Frostbyte's 1980s DOS Shareware Collection/floppyshareware.zip/floppyshareware/KAND/INTER27B.ZIP/INTERRUP.E

Text File | 1991-09-01 | 284KB | 8,035 lines

----------60---------------------------------
INT 60 - reserved for user interrupt
----------60---------------------------------
INT 60 - Zero Bug Virus - INSTALLATION CHECK
   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
----------60---------------------------------
INT 60 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 64"Adaptec"
----------60---------------------------------
INT 60 - Atari Portfolio - USER INTERFACE FUNCTIONS
   supplies a number of subfunctions which perform such functions as drawing
   boxes and menus, and provide input line editing
SeeAlso: INT 61"Atari"
----------60---------------------------------
INT 60 - HP 95LX System Manager
SeeAlso: INT 61"HP 95LX"
----------60---------------------------------
INT 60 - PC-IPC API
    STACK:    DWORD    pointer to parameter block (see below)
Return: STACK:    unchanged
Notes:    PC-IPC is a shareware TSR by Donnelly Software Engineering which allows
      communication between independent programs
    INT 60 is the default, any interrupt vector may be used by specifying
      the vector on the commandline

Format of parameter block:
Offset    Size    Description
 00h    WORD    caller's ID
 02h    WORD    to ID
 04h    WORD    command code (see below)
 06h    WORD    returned status
        bit 0: unused
        bit 1: IPC enabled
        bit 2: IPC installed
        bit 3: error
        bit 4: message(s) available
 08h    WORD    returned error code (see below)
 0Ah    WORD    size of data
 0Ch    DWORD    pointer to data buffer

Values of 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

Values for 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
----------60---------------------------------
INT 60 - Tangram Arbiter - API
Notes:    Arbiter may use any interrupt from 60h to 66h (parameterized)
    identified by string "@ARB_API" immediately following a short jump at
      the interrupt handler address
    Arbiter makes a PC disk look like a slow disk over an SNA link to an
      IBM mainframe
----------60---------------------------------
INT 60 - INTRSPY/CMDSPY API
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.
    INTRSPY is a script-driven debugger included with the book
      _Undocumented_DOS_.

Call INTRSPY 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 ???
----------60---------------------------------
INT 60 - PC/370 v4.2 - ???
    ???
Return: ???
Notes:    PC/370 is an IBM 370 emulator by Donald S. Higgins
    this is the default interrupt, however the documentation includes
      instructions for patching the system for another interrupt
SeeAlso: INT 2F/AX=7F24h,INT DC"PC/370"
----------60---------------------------------
INT 60 - JPI TopSPEED Modula-2 - PROCEDURE ENTRY TRAP
SeeAlso: INT 61"JPI"
----------60---------------------------------
INT 60 - FTP Packet Driver - PC/TCP Packet Driver Specification
   The handler for the interrupt will start with a 3-byte jump instruction,
   followed by the ASCIZ string "PKT DRVR".  To find the interrupt being used
   by the driver, an application should scan through interrupt vectors 60h to
   80h until it finds one with the "PKT DRVR" string.
----------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 #47
SeeAlso: AH=01h"SYS_PROF",02h"SYS_PROF"
----------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 = debugger color
        BH = monitor start line
        BL = debugger 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
Notes:    MDEBUG is a shareware memory-resident debugger by Bernd Schemmer
    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
SeeAlso: AH=02h"MDEBUG"

Format of MDEBUG identification table:
Offset    Size    Description
 -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
----------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
           ES:DI      -> R1
           ES:DI+02h  -> R2
           ES:DI+04h  -> R3
           ...
           ES:DI+0Eh  -> R8
----------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 below)
    CF clear if successful
        BX = version
        CH = network interface class (see below)
        DX = interface type (see below)
        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

Values for error code:
    01h invalid handle number
    02h no interfaces of the specified class found
    03h no interfaces of the specified type found
    04h no interfaces of the specified number found
    05h bad packet type
    06h interface does not support multicast messages
    07h this packet driver cannot terminate
    08h invalid receiver mode
    09h insufficient space
    0Ah type accessed but never released
    0Bh bad command
    0Ch packet could not be sent
    0Dh hardware address could not be changed
    0Eh hardware address has a bad length or format
    0Fh could not reset interface

Values for 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
    Class 02h  ProNET-10
    01h Proteon p1300
    02h Proteon p1800
    Class 03h  IEEE 802.5/ProNet-4
    01h IBM Token-Ring Adapter
    02h Proteon p1340
    03h Proteon p1344
    04h Gateway PC-bus
    05h Gateway AT-bus
    06h Gateway MCA-bus
    Class 04h  Omninet
    Class 05h  Appletalk
    Class 06h  Serial Line
    01h Clarkson 8250-SLIP
    02h Clarkson "Multiplexor"
    Class 07h  StarLAN (subsumed by Ethernet class)
    Class 08h  ARCnet
    01h Datapoint RIM
    Class 09h  AX.25
    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
    Class 0Dh  Internet X.25
    01h Western Digital
    02h Frontier Technology
    Class 0Eh  N.T. LANSTAR (encapsulating DIX Ethernet)
    01h NT LANSTAR/8
    02h NT LANSTAR/MC
Note: class and type numbers are cleared through FTP Software
----------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 #47
SeeAlso: AH=00h"SYS_PROF",02h"SYS_PROF"
----------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 debugger color if nonzero
    BH = new monitor start line if nonzero
    BL = new debugger 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 code
            bit 0 invalid monitor start line
            1 invalid debugger start line
            2 invalid hotkey
            3 invalid process number
              4-7 reserved
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"
----------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
    ES:DI -> receiver
Return: CF set on error
        DH = error code (see AX=01FFh)
    CF clear if successful
        AX = handle
SeeAlso: AH=03h"FTP"

Receiver is called with
    AX = subfunction
        00h application to return pointer to buffer in ES:DI
        returned ES:DI = 0000h:0000h means throw away packet
        01h copy completed
        DS:SI -> buffer
    BX = handle
    CX = buffer length
when a packet is received
----------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 #47
SeeAlso: AH=00h"SYS_PROF",01h"SYS_PROF"
----------6003-------------------------------
INT 60 - MDEBUG - POP UP
    AH = 03h
    DS:SI point to the password or a null byte
    ES -> new value for the register SE
    DI -> new value for the register OF
Return: AX = return code
        FFFFh call not allowed
        FFFEh password is invalid
        FFFDh display mode is invalid
       else successful
SeeAlso: AH=04h"MDEBUG"
----------6003-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RELEASE TYPE
    AH = 03h
    BX = handle
Return: CF set on error
       DH = error code (see AX=01FFh)
    CF clear if successful
SeeAlso: AH=02h"FTP"
----------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 #47
SeeAlso: AH=04h"SYS_PROF"
----------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 AX=01FFh)
    CF clear if successful
Note:    the buffer may be modified immediately upon return from this call
SeeAlso: AH=0Bh
----------6004-------------------------------
INT 60 - MDEBUG - POP UP
    AH = 04h
    DS:SI -> password or a null byte
Return: AX = return code
        FFFFh call not allowed
        FFFEh password is invalid
        FFFDh display mode is invalid
       else successful
SeeAlso: AH=03h"MDEBUG"
----------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 #47
SeeAlso: AH=03h"SYS_PROF"
----------6005-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - TERMINATE DRIVER FOR HANDLE
    AH = 05h
    BX = handle
Return: CF set on error
       DH = error code (see AX=01FFh)
    CF clear if successful
----------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 semapor of MDEBUG
        BH = old value of the INT 08h semaphor
            (this semaphor is always reset after this function)
----------6006-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - GET ADDRESS
    AH = 06h
    BX = handle
    ES:DI -> buffer
    CX = length
Return: CF set on error
        DH = error code (see AX=01FFh)
    CF clear if successful
        CX = length
Note:    copies the local net address associated with the handle into the buffer
----------6006-------------------------------
INT 60 - MDEBUG - GET PASSWORD STATUS
    AH = 06h
Return: AL = status
        00h password inactive
        01h password active
----------6007-------------------------------
INT 60 - FTP Packet Driver - BASIC FUNC - RESET INTERFACE
    AH = 07h
    BX = handle
Return: CF set on error
        DH = error code (see AX=01FFh)
    CF clear if successful
----------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 AX=01FFh)
    CF clear if successful
        ES:DI -> parameter table (see below)

Format of parameter table:
Offset    Size    Description
 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
----------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
Return: CF set on error
        DH = error code (0Bh,0Ch) (see AX=01FFh)
    CF clear if successful
Note:    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
SeeAlso: AH=04h"Packet Driver"

Completion function called with:
    AX = result
        00h copy OK
        nonzero error
    ES:DI -> buffer passed to INT 60/AH=0Bh call
----------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
----------6011-------------------------------
INT 60 - 3com, 10-NET, 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
        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
SeeAlso: AH=12h,AH=13h
----------6012-------------------------------
INT 60 - 3com, 10-NET, 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 AH=11h)
        01h semaphore currently locked by another PC
Note:    unlike function 11h, this function returns immediately
SeeAlso: AH=11h,AH=13h
----------6013-------------------------------
INT 60 - 3com, 10-NET, 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 AH=11h)
        1 semaphore not locked
SeeAlso: AH=11h,AH=12h
----------6014-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - SET RECEIVE MODE
    AH = 14h
    BX = handle
    CX = 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
Return: CF set on error
       DH = error code (01h,08h) (see AX=01FFh)
    CF clear if successful
SeeAlso: AH=15h
----------6015-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET RECEIVE MODE
    AH = 15h
    BX = handle
Return: CF set on error
        DH = error code (01h) (see AX=01FFh)
    CF clear if successful
        AX = mode
SeeAlso: AH=14h
----------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 AX=01FFh)
    CF clear if successful
SeeAlso: AH=17h
----------6017-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET MULTICAST LIST
    AH = 17h
Return: CF set on error
        DH = error code (06h,09h) (see AX=01FFh)
    CF clear if successful
        ES:DI -> multicast addresses (do not modify)
        CX = bytes of multicast addresses currently in use
SeeAlso: AH=16h
----------6018-------------------------------
INT 60 - FTP Packet Driver - EXTENDED FUNC - GET STATISTICS
    AH = 18h
    BX = handle
Return: CF set on error
        DH = error code (01h) (see AX=01FFh)
    CF clear if successful
        DS:SI -> statistics (see below)

Format of statistics:
Offset    Size    Description
 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
----------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 AX=01FFh)
    CF clear if successful
        CX = length
----------61---------------------------------
INT 61 - reserved for user interrupt
----------61---------------------------------
INT 61 - Atari Portfolio - EXTENDED BIOS
   provides subfunctions such as turning off the machine, accessing internal
   variables, and mapping memory cards
SeeAlso: INT 60"Atari"
----------61---------------------------------
INT 61 - HP 95LX System Manager - LOAD DS
SeeAlso: INT 60"HP 95LX"
----------61---------------------------------
INT 61 - JPI TopSPEED Modula-2 - PROCEDURE EXIT TRAP
SeeAlso: INT 61"JPI"
----------61---------------------------------
INT 61 - FTP Software PC/TCP - TCP/IP TSR System Call interface
    AH = system call number
Return: AL = basic error
    AH = suberror number
----------61---------------------------------
INT 61 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 60"Adaptec"
----------610001-----------------------------
INT 61 - Banyan VINES - "Sosock" - OPEN COMMUNICATIONS SOCKET
    AX = 0001h
    DS:DX -> communications control block (function 0001h)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0098h  resource already in use
        009Eh  address family does not exist
        009Fh  socket type does not exist
        00A0h  protocol does not exist
        00A1h  no more sockets available
        00A2h  no more buffer space available
Note:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler

Format of control block:
Offset    Size    Description
 00h    WORD    0001h
 02h    WORD    pointer to argument block
 04h    WORD    error return code
 06h  4 BYTEs    reserved

Format of argument block:
Offset    Size    Description
 00h    WORD    pointer to 2-byte buffer for socket identifier
 02h    WORD    address family
        0003h Banyan
 04h    WORD    socket type
        in address family 0003h
            0001h IPC socket
            0002h SPP socket
 06h    WORD    protocol number
        FFFFh default
 08h    WORD    pointer to 16-byte buffer for socket address
 0Ah    WORD    local port number
        0000h if service should assign transient port number
        0001h to 01FFh well-known port number (assigned by Banyan)

Format of IPC port:
Offset    Size    Description
 00h    WORD    address family (always 0003h for Banyan ports)
 04h  4 BYTEs    network number (server's serial number)
 06h    WORD    subnet number  (0001h = server, 8000h-FFFEh = PC)
 08h    WORD    port ID (0001h-01FFh for "well-known" ports)
 0Ah    BYTE    hop count
 0Bh  5 BYTEs    filler
----------610001-----------------------------
INT 61 - Banyan VINES - "Sosend" - INITIATE OUTPUT EVENT
    AX = 0001h
    DS:DX -> communications control block (function 0002h)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0003h-000Ah reserved for BANV interface errors
        0097h  invalid socket identifier
        009Bh  destination node unreachable
        009Ch  message overflow
        009Dh  destination socket nonexistent
        00A2h  no more buffer space
        00A3h  timeout
        00B1h  resource disconnect
Note:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler

Format of control block:
Offset    Size    Description
 00h    WORD    0002h
 02h    WORD    pointer to argument block (see below)
 04h    WORD    error return code
        0000h successful
        0097h invalid socket ID
        00A2h no more buffer space
        00A3h timeout event
        00A5h resource not available
        00A6h internal communication failure
        00B1h resource disconnect
 06h  4 BYTEs    reserved

Format of argument block:
Offset    Size    Description
 00h    WORD    routine metric
 02h    WORD    error return code
 04h    WORD    socket identifier
 06h    WORD    pointer to send buffer
 08h    WORD    length of send buffer
 0Ah    WORD    flags
        bit 0: async request
            1: reliable message
            3: end of user message received
            4: vectored request (if set, send buffer contains buffer
            descriptors)
            5: connection-specific receive
            6: change to connection-specific receive mode
 0Ch 16 BYTEs    socket address (see below)
 1Ch    WORD    timeout value in multiples of 200ms
 1Eh    WORD    connection identifier
 20h    WORD    type of request
        0001h send message
        0002h establish a virtual connection
        0003h terminate a virtual connection

Format of buffer descriptor:
Offset    Size    Description
 00h    WORD    data segment
 02h    WORD    buffer pointer
 04h    WORD    buffer length
 06h    WORD    character count

Format of socket address for unreliable datagrams:
Offset    Size    Description
 00h    WORD    0003h      address family
 02h    DWORD    FFFFFFFFh network number
 06h    WORD    FFFFh      subnet number
 08h    WORD          local port number
 0Ah    BYTE    00h-0Fh      hop count
 0Bh  5 BYTEs    0000h      filler
----------610001-----------------------------
INT 61 - Banyan VINES - "Sorec" - RECEIVE INPUT EVENT NOTIFICATION
    AX = 0001h
    DS:DX -> communications control block (function 0003h)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0003h-000Ah reserved for BANV interface errors
        0097h  invalid socket identifier
        00A2h  no more buffer space
        00A3h  timeout
Note:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler

Format of control block:
Offset    Size    Description
 00h    WORD    0003h
 02h    WORD    pointer to argument block (see below)
 04h    WORD    error return code
        0000h successful
        0097h invalid socket ID
        00A2h no more buffer space
        00A3h timeout event
        00A5h resource not available
        00A6h internal communication failure
        00B1h resource disconnect
 06h  4 BYTEs    reserved

Format of argument block:
Offset    Size    Description
 00h    WORD    character count
 02h    WORD    error return code
 04h    WORD    socket identifier
 06h    WORD    pointer to receive buffer
 08h    WORD    length of receive buffer
 0Ah    WORD    flags
        bit 0: async request
            2: flush receive buffer on overflow
            3: end of user message received
            4: vectored request (if set, receive buffer contains buffer
            descriptors)
            5: connection-specific receive
            6: change to connection-specific receive mode
 0Ch 16 BYTEs    socket address
 1Ch    WORD    timeout value in multiples of 200ms
 1Eh    WORD    connection identifier
 20h    WORD    type of response
        0001h message received
        0002h virtual connection established
        0003h virtual connection terminated

Format of buffer descriptor:
Offset    Size    Description
 00h    WORD    data segment
 02h    WORD    buffer pointer
 04h    WORD    buffer length
 06h    WORD    character count
----------610001-----------------------------
INT 61 - Banyan VINES - "Soclose" - CLOSE A SOCKET
    AX = 0001h
    DS:DX -> communications control block (function 0004h)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0003h-000Ah reserved for BANV interface errors
        0097h  invalid socket identifier
Note:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler

Format of control block:
Offset    Size    Description
 00h    WORD    0004h
 02h    WORD    pointer to argument block (see below)
 04h    WORD    error return code
 06h  4 BYTEs    reserved

Format of argument block:
Offset    Size    Description
 00h    WORD    socket identifier
----------610001-----------------------------
INT 61 - Banyan VINES - "Sowait" - WAIT FOR ASYNCHRONOUS EVENT COMPLETION
    AX = 0001h
    DS:DX -> communications control block (function 0005h)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0003h-000Ah reserved for BANV interface errors
        00A2h  no more buffer space available
        00A3h  timeout event
Notes:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler
    returns results for all asynchronous operations invoked from the
      data segment used for this call

Format of control block:
Offset    Size    Description
 00h    WORD    0005h
 02h    WORD    pointer to argument block (see below)
 04h    WORD    error return code
 06h  4 BYTEs    reserved

Format of argument block:
Offset    Size    Description
 00h    WORD    pointer to WORD event pointer
 02h    WORD    timeout in multiples of 200ms, FFFFh = infinite
----------610001-----------------------------
INT 61 - Banyan VINES - "Sosession" - REGISTER APPLICATION WITH COMM SERVICE
    AX = 0001h
    DS:DX -> communications control block (function 0008h)
Return: AX = status
        0000h  successful
        00A2h  no more buffer space available
Note:    BANYAN can use any interrupt from 60h through 66h (default 61h).  The
      Banyan interrupt handler is identified by the string "BANV" in the
      four bytes immediately preceding the interrupt handler

Format of control block:
Offset    Size    Description
 00h    WORD    0008h
 02h    WORD    process type
        0001h transient process
        0002h resident process
 04h    WORD    error return code
 06h  4 BYTEs    reserved
----------610001-----------------------------
INT 61 - Banyan VINES - "Soint" - SET USER COMPLETION FUNCTION
    AX = 0001h
    DS:DX -> communications control block (function 000Bh)
Return: AX = status
        0000h  successful
        0001h  service not installed
        0002h  invalid service ID
        0003h-000Ah reserved for BANV interface errors
        00A2h  no more buffer space available
Notes:    BANYAN can use any interrupt from 60h through 66h.  The Banyan
      interrupt handler is identified by the string "BANV" in the four
      bytes immediately preceding the interrupt handler
    FAR user function is invoked with SS,DS, and ES set to segment of
      control block, and with the stack containing
        DWORD    return address
        WORD    argument pointer (sosend or sorec argument block)
        WORD    error return code
            0000h argument pointer is valid
            00A3h timeout

Format of control block:
Offset    Size    Description
 00h    WORD    000Bh
 02h    WORD    pointer to argument block (see below)
 04h    WORD    error return code
 06h  2 BYTEs    reserved
 08h    WORD    user CS register

Format of argument block:
Offset    Size    Description
 00h    WORD    pointer to user interrupt function
 02h    WORD    pointer to user stack
 04h    WORD    initial timeout value in multiples of 200ms, FFFFh = infinite
----------610002-----------------------------
INT 61 - Banyan VINES - 3270 INTERFACE
    AX = 0002h
    BH = function
        00h "pi2reset"  reset 3270/SNA or 3270/BSC driver
        02h "pi2bsc" (3270/BSC only)
        03h    "pi2get"    get information stored in 3270 resident driver
        04h "pi2put"    store information in 3270 resident driver
        05h "pi2gcur"   get current screen position
        07h "pi2sdat"   send data keystroke
        08h "pi2scom"   send command keystroke
        0Ah "pi2field"  get field info for arbitrary screen positions
        0Fh "pi2stat"   get logical unit/device status
        12h "pi2nlus"   determine logical unit/device assignment
        13h "pi2gate"   specifies comm port address to gateway service
        14h "pi2attach" attach a logical unit/device
        15h "pi2sdev"   save logical unit/device info in resident driver
                (not supported in >3.0)
        16h "pi2gdev"   get device information (not supported in >3.0)
        17h "pi2luinfo" get info about specific logical unit/device
        18h "pi2gerr"   get finer error detail
        19h "pi2dhold"  (3270/SNA only)  holds a 3270 device
        1Ah "pi2shut"   release memory-resident module
        1Ch "pi2sprof"  save profile info in res driver (not supp in >3.0)
        1Dh "pi2gprof"  get prevsly stored profile info (not supp in >3.0)
    DS:CX -> argument block (except BH=00h,1Ah)
Return: AX = status
        0000h successful
        000Bh invalid parameter or data does not fit data area
        000Ch another code path currently active in resident driver
        000Dh operation currently not allowed
        0032h encountered connection disconnect error
        0033h encountered "sosend" completion error
        0034h encountered "sosend" communication error
        0035h attach request refused.  extended error info via "pi2gerr":
            01h resource unavailable
            02h invalid type
            03h version mismatch
            04h invalid logical unit number
            05h error during ARL processing
            06h no access for user
        0071h encountered "sosock" error
        0072h encountered unrecognizable error
        0073h encountered "sowait" error (extended info via "pi2gerr")
        0074h encountered invalid type-of-request on "sowait"
        0075h encountered "sorec" error (extended info via "pi2gerr")
        0076h encountered "sorec" completion error (ext info via "pi2gerr")
        0077h encountered connection request
        0078h encountered unrecognizable data
        0079h encountered unknown connection ID (ext info via "pi2gerr")
Notes:    Either 3270/SNA or 3270/BSC interface may use AX=0002h, depending on
      which is loaded first.  The other interface will use AX=000Ah
    Status codes greater than 63h indicate an inconsistency in the 3270/SNA
      or 3270/BSC resident driver, which must be reloaded by the user

Format of argument block for BH=03h,04h:
Offset    Size    Description
 00h    WORD    size of data area (max 256)
 02h  N BYTEs    data area

Format of argument block for BH=05h:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    pointer to WORD buffer for cursor index
 04h    WORD    pointer to BYTE buffer for current field attribute

Format of argument block for BH=07h:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    ASCII data byte
 04h    WORD    pointer to WORD count of characters which will need updating

Format of argument block for BH=08h:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    keystroke
        0000h Enter
        0001h Clear
        0002h PA1
        0003h PA2
        0004h PA3
        0005h PF1
        ...
        001Ch PF24
        001Dh CSELECT (cursor select)
        001Eh Insert
        001Fh Delete
        0020h EOField
        0021h EINPUT (erase input)
        0022h Reset
        0023h Attention
        0024h SysReq
        0025h Duplicate
        0026h Fieldmark
        0027h Home
        0028h NextLine
        0029h Tab
        002Ah BackTab
        002Bh cursor up
        002Ch cursor down
        002Dh cursor right
        002Eh cursor left
        002Fh double cursor right
        0030h double cursor left
        0031h PRINT
        0032h CANCEL
        0033h Backspace

Format of argument block for BH=0Ah:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    screen index
 04h    WORD    pointer to WORD buffer for field length
 06h    WORD    pointer to WORD buffer for offset in screen of field start

Format of argument block for BH=0Fh:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    clear mask (clear these bits of status after returning status)
 04h    WORD    pointer to WORD buffer for status
        bit 10: status modified
        bit  9: buffer modified
        bit  8: set cursor
        bit  5: sound alarm
        bits 0,1: size of print line for printer logical units
            00 unformatted line
            01 40-character line
            10 64-character line
            11 80-character line

Format of argument block for BH=12h:
Offset    Size    Description
 00h    WORD    pointer to WORD buffer for number of logical units or devices
 02h    WORD    pointer to WORD buffer for version number
 04h    WORD    pointer to 64-byte buffer for logical unit/device list

Format of argument block for BH=13h:
Offset    Size    Description
 00h 16 BYTEs    communications port address (see AX=0001h#"Sosock")

Format of argument block for BH=14h:
Offset    Size    Description
 00h    WORD    logical unit/device number
        0000h attach any free device of the specified type
 02h    WORD    logical unit/device type
        (3270/SNA) 01h, 02h, or 03h
        (3270/BSC) 02h display
        (3270/BSC) 03h printer
 04h    WORD    pointer to WORD buffer for attached logical unit/device number

Format of argument block for BH=16h:
Offset    Size    Description
 00h    WORD    pointer to 18-byte buffer for device block (see below)
        first WORD must be set to desired logical unit/device number

Format of argument block for BH=17h:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    pointer to information block in caller's DS (see below)

Format of argument block for BH=18h:
Offset    Size    Description
 00h    WORD    pointer to WORD buffer for major error code
 02h    WORD    pointer to WORD buffer for minor error code

Format of argument block for BH=19h:
Offset    Size    Description
 00h    WORD    logical unit/device number

Format of argument block for BH=1Ch,1Dh:
Offset    Size    Description
 00h    WORD    pointer to profile block in caller's DS (see below)

Format of device block, argument block for BH=15h:
Offset    Size    Description
 00h    WORD    logical unit/device number
 02h    WORD    logical unit/device type
 04h    WORD    display model number
 06h    WORD    numeric checking
 08h    WORD    status line
 0Ah    BYTE    unprotected normal field attribute
 0Bh    BYTE    unprotected intensified field attribute
 0Ch    BYTE    protected normal field attribute
 0Dh    BYTE    protected intensified field attribute
 0Eh    WORD    reserved
 10h    WORD    printer port number

Format of information block:
Offset    Size    Description
 00h    WORD    device model number
 02h    DWORD    screen buffer pointer
 06h    DWORD    status line pointer (see below)
 0Ah    DWORD    reserved

Format of status line:
Offset    Size    Description
 00h    BYTE    comm line status
        00h inactive
        01h active
 01h    BYTE    activation level
        01h physical unit activated
        02h logical unit also activated
        03h session is bound
 02h    BYTE    data traffic state
        00h inactive
        01h active
 03h    BYTE    screen ownership
        00h SLU->PLU sessoin owns screen
        01h SLU->SSCP session owns screen
 04h    BYTE    keyboard status
        00h UNLOCK - ready to accept data
        01h TIME - aid was struck
        02h SYSTEM - received response no restore
        03h FUNCTION - unavailable keyboard function
        04h INPUT - not currently used
        05h ENDFIELD - field filled in insert mode
        06h PROTECTED - attempt to enter in protected field
        07h NUMERIC - attempt to enter in numeric field
        08h PROGRAM - error in outbound data stream
 05h    BYTE    insert mode
        01h if in insert mode
 06h    BYTE    numeric
        01h if current screen buffer is numeric only
 07h    BYTE    printer status
        00h printer not assigned
        01h printer is inactive
        02h printer error
        03h currently printing
        04h printer is busy
        05h printer is very busy
 08h    BYTE    printer assignment
 09h    BYTE    maximum size of network name
 0Ah  N BYTEs    ASCIZ network name
    BYTE    maximum size of message window
      M BYTEs    null-terminated message window
    BYTE    code set
        00h EBCDIC
        01h ASCII
      M BYTEs    extended attributes
        01h extended attributes are in effect (stored at screen+1920)
            each extended attribute specifies
            bits 0,1: 00=normal, 01=blink, 10=reverse, 11=underscor
            bits 2-4: 000=default,001=blue,010=red,011=pink,
                  100=green,101=turquoise,110=yellow,111=white
    BYTE    extended color
        01h other than base color is in effect

Format of profile block:
Offset    Size    Description
 00h 64 BYTEs    gateway service name
 40h 16 BYTEs    gateway comm port address
 50h    WORD    primary logical unit number
 52h    WORD    secondary logical unit type
 54h    WORD    secondary logical unit number
 56h    WORD    printer assignment
 58h 50 BYTEs    keyboard definitions filename
----------610003-----------------------------
INT 61 - Banyan VINES - ASYNCHRONOUS TERMINAL EMULATION
    AX = 0003h
    DS:BX -> argument block with function number (see below)
Return: AX = status
        0000h successful
        000Bh invalid session ID
        000Ch session not active
        000Dh invalid request type
        000Eh invalid parameters
        000Fh out of heap space
        0010h timeout on send
        0011h Banyan communications error
        0012h session not waiting for host
        0013h session is active
        0014h duplicate suspend session request
        0015h no session suspended
        0016h ring data buffer full
        0017h printer error encountered
        0018h Banyan communications error
        0019h unable to make connection
        001Ah no ring buffer specified at startup
        001Bh service is down
        001Ch invalid service name
        001Dh service is closed
        001Eh invalid connection name
        001Fh max session limit reached for service
        0020h access rights list for connection/dialout does not include
            this user
        0021h service not responding
        0022h missing telephone number

Format of argument block:
Offset    Size    Description
 00h    BYTE    session ID (00h)
 01h    BYTE    asynchronous interface request number
        00h initialize user buffer pointer information area
        01h send to host
        02h "control monitor"
        03h "flow control data": freeze/unfreeze display, ring buffer
        04h end active session
        05h set session parameter
        06h get session parameter
        07h set tab settings
        08h get tab settings
        09h refresh emulation screen
        0Ah suspend session temporarily
        0Bh restore previously suspended session
        0Ch set state of scroll lock checking
        0Dh exit emulation
        0Eh interrupt on character from host
        0Fh start a session
        10h start/stop printing of data received from host
        11h get file transfer parameters
        12h get connection information
        13h start/stop tracing data traffic in session
        14h interrupt on message from host
        15h reset error
---request=00h---
 02h    WORD    pointer to info area in caller's current DS
        Offset    Size    Description
         00h    WORD    flags
                0000h don't read interface's data buffer
                0001h read data buffer
         02h    DWORD    pointer to ring buffer
         06h    WORD    length of ring buffer
         08h    WORD    ring buffer offset to last byte read by caller
         0Ah    DWORD    pointer to WORD containing offset of last byte
                  in ring buffer filled
         0Eh    DWORD    pointer to screen buffer
         12h    DWORD    pointer to field containing cursor position
         16h    DWORD    pointer to terminal status area (see below)
---request=01h---
 02h    BYTE    type
        00h ASCII byte
        01h ASCII string
        02h terminal function code
        03h up arrow
        04h down arrow
        05h left arrow
        06h right arrow
        07h break
 03h  N BYTEs    type-specific info
        Offset    Size    Description
        ---ASCII byte---
         03h    BYTE    byte to send to host
        ---ASCII string---
         03h    WORD    length of string
         05h    WORD    pointer to string
        ---terminal function code (VT52/VT100)---
         03h    BYTE    function code
                00h keypad 0
                01h keypad 1
                ...
                09h keypad 9
                0Ah keypad -
                0Bh keypad ,
                0Ch keypad .
                0Dh keypad ENTER
                0Eh PF1
                0Fh PF2
                10h PF3
                11h PF4
        ---terminal function code (IBM3101)---
         03h    BYTE    function code
                00h PF1
                ...
                07h PF8
                08h Home
---request=02h---
 02h    BYTE    display flag
        00h don't display data received from host
        01h display data
---request=03h---
 02h    BYTE    flow control flag
        00h allow characters to be put into display or ring buffer
        01h don't place any more characters into display or ring buffer
---request=05h,06h---
 02h    BYTE    parameter number
        00h line speed (00h=any, 01h=50, 02h=110, 03h=134.5, 04h=150,
            05h=300,06h=600,07h=1200,08h=2400,09h=4800, 0Ah=9600)
        01h parity (00h=none, 01h=odd, 02h=even)
        02h duplex (00h=full, 01h=half)
        03h character size (00h=7 bits, 01h=8 bits)
        04h stop bits (00h=1, 01h=2)
        05h XON/XOFF flow control (00h=no, 01h=yes)
        07h intercharacter delay in tenths of a second
        08h interline delay in tenths of a second
        09h auto linefeed (00h=no, 01h=yes)
        0Ah filter control characters (00h=no, 01h=yes)
        0Bh terminal type (00h=VT100,01h=glassTTY,02h=VT52,03h=IBM3101)
        0Ch auto wrap (00h=no, 01h=yes)
        0Dh cursor shape (00h=underscore, 01h=block)
        0Eh character set (00h=UK, 01h=US ASCII)
        0Fh printer port (00h=LPT1, 01h=LPT2, 02h=LPT3)
 03h    BYTE    parameter value (returned for 06h)
---request=07h,08h---
 02h    WORD    pointer to 80-byte buffer in caller's current DS
          each byte = 00h if no tab, 01h if tab at that position
---request=0Ah---
 02h    WORD    size of session information to be saved
 04h    WORD    pointer to buffer in caller's DS
---request=0Bh---
 02h    WORD    size of buffer into which session info is restored
 04h    WORD    pointer to buffer in caller's DS
---request=0Ch---
 02h    BYTE    check_scroll_lock flag
        00h off
        01h on (display of host data stopped while ScrollLock on)
---request=0Eh,14h---
 02h    DWORD    pointer to routine to be called (0000h:0000h = don't call)
 06h    DWORD    stack pointer to use when call is made
---request=0Fh---
 02h    WORD    pointer to information area in caller's current DS
        Offset    Size    Description
         00h    WORD    length of service name
         02h    WORD    pointer to service name in caller's DS
         04h    BYTE    type of connection
                (00h=connection name, 01h=dialout)
         05h    WORD    length of connection name/telephone number
         07h    WORD    pointer to connection name/telephone number
---request=10h---
 02h    WORD    print capture flag (00h=off, 01h=on)
---request=11h---
 02h    WORD    pointer to info area in caller's current DS
        Offset    Size    Description
         00h    BYTE    protocol flag (00h none, 01h Kermit)
         01h    BYTE    direction flag (00h send, 01h receive)
         02h    BYTE    length of null-terminated PC filename
         03h    DWORD    pointer to null-terminated PC filename
         07h    BYTE    length of null-terminated host filename
         08h    DWORD    pointer to null-terminated host filename
---request=12h---
 02h    WORD    pointer to info area in caller's current DS (see below)
        Offset    Size    Description
         00h    WORD    length of service name (returned)
         02h    WORD    pointer to 64-byte buffer for service name
         04h    BYTE    type of connection
                00h connection name
                01h dialout
         05h    WORD    length of connection name/telephone number
         07h    WORD    pointer to 64-byte buffer for name/telno
         09h    BYTE    server line number being used (returned)
---request=13h---
 02h    BYTE    trace flag (00h=off, 01h=on)

Format of terminal status area:
Offset    Size    Description
 00h    BYTE    status of session: 4Eh=oNline, 46h=oFfline, 57h=Waiting
 01h    BYTE    terminal type (00h=VT100, 01h=TTY, 02h=VT52, 03h=IBM3101)
 02h    BYTE    current keypad mode (VT100,VT52 only)
        4Eh ("N") numeric mode
        41h ("A") application mode
 03h  4 BYTEs    current state of LEDs (VT100 only)
        00h off
        01h on
 07h    WORD    line error count
 09h    WORD    primary error code
        0000h no error
        0001h unable to make connection
        0002h communications error, restart session
        0003h async terminal emulation service unavailable
        0004h lost carrier
        0005h all matching lines busy
        0006h no lines defined for connection name
        0007h no dial lines available on server
        0008h no matching dial lines available
        0009h out of heap space
        000Ah service error encountered
        000Bh timed out waiting to connect
        000Ch communications error
        000Dh communications error
        000Eh host wants file transferred to/from PC
        000Fh host software changed session parameter
        0010h host software changed tap settings
        0011h host software changed LED indicator
        0012h host software changed display background (secondary error
            code 00h for white on black, 01h for black on white)
        0013h host software changed display option (secondary error
            code 00h for off, 01h for on)
        0014h communications error
        0015h communications error
        0016h unable to make connection
        0017h unable to make connection
 0Bh    WORD    secondary error code
----------610004-----------------------------
INT 61 - Banyan VINES - GET SERVER SERIAL NUMBER
    AX = 0004h
    DS:DX -> request block (function 0008h)
Return: AX = status
        0000h server ID returned in request block
        000Fh invalid drive
        0015h drive not ready

Format of request block:
Offset    Size    Description
 00h    WORD    0008h
 02h    WORD    drive number (0=default, 1=A, ...)
 04h  6 BYTEs    buffer for server ID
----------610005-----------------------------
INT 61 - Banyan VINES - PRINTER CONTROL
    AX = 0005h
    DS:DX -> request block
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible

Format of request block:
Offset    Size    Description
 00h    WORD    function
        0201h "endspool" all data for a print job has been sent
        0205h "getactive" get currently active printer port
 02h    WORD    number of active port (1-3)
 04h    WORD    ??? (0 for func 0201h, 3 for func 0205h)
 06h    WORD    0000h
----------610007BX0002-----------------------
INT 61 - Banyan VINES - GET PORTS FOR A SERVICE
    AX = 0007h
    BX = 0002h
    DS:DX -> StreetTalk service name
    DS:DI -> port record block (see below)
Return: AX = status
        0000h successful
        0001h PC network software not installed or incompatible
        03E9h incorrect name syntax
        03EAh organization name too long
        03EBh group name too long
        03ECh item name too long
        03EDh StreetTalk name too long
        03F3h organization not found
        03F4h group not found
        03F5h StreetTalk name not found
        03F8h not a StreetTalk name
        040Dh appropriate StreetTalk name unavailable

Format of port record block:
Offset    Size    Description
 00h    WORD    number of 17-byte elements
 02h 17 BYTEs    element (byte 00h = input port type, bytes 01h-10h = port)
        (see AX=0001h#"Sosock" for port format)
----------610007BX0004-----------------------
INT 61 - Banyan VINES - SET PORTS FOR A SERVICE
    AX = 0007h
    BX = 0004h
    DS:DX -> StreetTalk name of service
    DS:DI -> port record block (see below)
Return: AX = status
        0000h successful
        0001h PC network software not installed or incompatible
        03E9h incorrect name syntax
        03EAh organization name too long
        03EBh group name too long
        03ECh item name too long
        03EDh StreetTalk name too long
        03F3h organization not found
        03F4h group not found
        03F5h StreetTalk name not found
        03F8h not a StreetTalk name
        0409h modify access denied
        040Dh appropriate StreetTalk name unavailable

Format of port record block:
Offset    Size    Description
 00h    WORD    number of 17-byte elements
 02h 17 BYTEs    element: byte 00h = input port type, 01h-10h = port
        (see AX=0001h#"Sosock" for port format)
----------610007BX0005-----------------------
INT 61 - Banyan VINES - GET USER NAME
    AX = 0007h
    BX = 0005h
    DS:DX -> 64-byte buffer for user's StreetTalk name
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
Note:    if no user logged in, first byte of returned name will be 00h
----------610007BX0006-----------------------
INT 61 - Banyan VINES - TRANSLATE ERROR INTO ASCII STRING
    AX = 0007h
    BX = 0006h
    SI = error code (>100)
    DS:DX -> 80-byte buffer for error text
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
----------610007BX0007-----------------------
INT 61 - Banyan VINES - VERIFY EXISTENCE OF NAME AND RETURN CANONICAL FORM
    AX = 0007h
    BX = 0007h
    DS:DX -> NiceName block (see below)
Return: AX = status
        0000h successful
        0001h PC network software not installed or incompatible
        03E9h incorrect name syntax
        03EAh organization name too long
        03EBh group name too long
        03ECh item name too long
        03EDh StreetTalk name too long
        03F3h organization not found
        03F4h group not found
        03F5h StreetTalk name not found
        03F8h not a StreetTalk name
        040Dh appropriate StreetTalk name unavailable
SeeAlso: AX=0007h/BX=0008h

Format of NiceName block:
Offset    Size    Description
 00h    WORD    type of name
        0064h organization
        00C8h group
        012Ch item
 02h    WORD    pointer to ASCIZ input name
 04h    WORD    pointer to 64-byte buffer for output name
----------610007BX0008-----------------------
INT 61 - Banyan VINES - ENUMERATE StreetTalk NAMES
    AX = 0007h
    BX = 0008h
    DS:DX -> enumerate block (see below)
Return: AX = status
        0000h successful
        0411h all matching names have been returned
        0412h some groups unavailable, all available matches returned
Note:    each program using this call should continue until a nonzero status
      is returned; otherwise, some resources will not be freed for several
      hours
SeeAlso: AX=0007h/BX=0007h

Format of enumerate block:
Offset    Size    Description
 00h    WORD    return code
 02h    WORD    pointer to pattern string
 04h    WORD    enumerate type
        0064h organization
        00C8h group
        012Ch item
 06h    WORD    enumerate class
        0000h unspecified (return all matching items)
        0001h user names
        0002h service names
        0003h list names
        0004h nicknames
 08h    WORD    pointer to category criteria block (see below) or 0
 0Ah    WORD    pointer to array of 64-byte returned names
 0Ch    WORD    number of names returned
 0Eh  6 BYTEs    reserved for subsequent enumerated calls (set to zeros on first
          call)

Format of category criteria block:
Offset    Size    Description
 00h    WORD    exclude flag
        0000h return only items with the specified categories
        0001h return all items except those with the given categories
 02h    WORD    number of categories
 04h    WORD    category 1 value
 06h    WORD    category 2 value
        ...

Values for common service categories:
 0002h file service
 0003h print service
 0004h mail service
 0005h StreetTalk
 0006h time service
 0008h semaphore service
 0009h 3270/SNA service
 000Ah asynchronous terminal emulation service
 000Ch NETBIOS service
 000Dh PC-based service
----------610008BX0002-----------------------
INT 61 - Banyan VINES - POST MESSAGE ON LOCAL DISPLAY
    AX = 0008h
    BX = 0002h
    CX = flags
        bit 0: message will remain on screen until user presses ^X
        bit 1: ring bell after displaying message
        bit 2: blink
    DS:DX -> ASCIZ string to display (only first 80 chars used)
Return: AX = status
        0000h successful
        000Bh message display function currently busy
        000Ch message queue full
Note:    queues up to three messages to be displayed on the bottom line
----------610008BX0003-----------------------
INT 61 - Banyan VINES - INTERCEPT VINES 25th-LINE MESSAGES AT LOCAL PC
    AX = 0008h
    BX = 0003h
    DS:DX -> request block
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
Notes:    message handler should not call BIOS or DOS functions, and should
      either call next handler or simply return
    to stop intercepting messages, set prev and next request blocks to
      point at each other

Format of request block:
Offset    Size    Description
 00h    DWORD    pointer to user-written message handler
 04h    DWORD    pointer to next request block (filled in by VINES)
 08h    DWORD    pointer to previous request block (filled in by VINES)
 0Ch    DWORD    pointer to message storage area (filled by VINES) (see below)

Format of message storage area:
Offset    Size    Description
 00h 16 BYTEs    IPC port of message sender (see AX=0001h#"Sosock")
 10h    BYTE    message flags
 11h    WORD    reserved
 13h    BYTE    length of message
 14h 80 BYTEs    message text
----------61000A-----------------------------
INT 61 - Banyan VINES - SECONDARY 3270 INTERFACE
    AX = 000Ah
Notes:    either 3270/SNA or 3270/BSC interface will use AX=000Ah, depending on
      which is loaded second.  The first interface loaded will use AX=0002h
SeeAlso: INT 61/AX=0002h
----------6101-------------------------------
INT 61 - Banyan VINES - CHECK SERVICE
    AH = 01h
    AL = service ID
        01h communications
        02h primary 3270 emulation
        03h async terminal emulation
        04h file deflection
        07h StreetTalk
        08h environment
        0Ah secondary 3270 emulation
        0Bh semaphore service
        0Ch 3270 emulation active status
        0Dh 3270 keyboard interrupt simulator
Return: AX = status
        0000h installed
        0001h not installed
        0002h invalid ID
----------6102-------------------------------
INT 61 - Banyan VINES - GET REVISION NUMBER
    AH = 02h
    DS:DX -> 2-byte buffer for result
Return: AX = 0000h installed
        DS:DX buffer contains revision number as
        10000d * major_ver + 100d * minor_ver + patch_revision
----------61---------------------------------
INT 61 - Sangoma CCIP (CCPOP 3270 resident module) INTERFACE
    BX:DX -> control block
----------62---------------------------------
INT 62 - reserved for user interrupt
----------62---------------------------------
INT 62 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 61"Adaptec"
----------62---------------------------------
INT 62 - MS SQL Server/Sybase DBLIBRARY interface
----------6201-------------------------------
INT 62 - Cswitch - GIVE UP REST OF TIME-SLICE
    AH = 01h
Note:    Cswitch is a set of multitasking functions by Herb Rose
SeeAlso: AH=05h,AH=06h
----------6202-------------------------------
INT 62 - Cswitch - WAIT FOR SEMAPHORE
    AH = 02h
    DX = semaphore number (0-63)
Return: AX = FFFFh bad semaphore number
         else  success
SeeAlso: AH=03h,AH=04h
----------6203-------------------------------
INT 62 - Cswitch - CHECK SEMAPHORE
    AH = 03h
    DX = semaphore number (0-63)
Return: AX = FFFFh not owned
         else  owned
SeeAlso: AH=02h,AH=04h
----------6204-------------------------------
INT 62 - Cswitch - TRIGGER SEMAPHORE
    AH = 04h
    DX = semaphore number (0-63)
Return: AX = FFFFh bad semaphore number
         else  success
SeeAlso: AH=02h,AH=03h
----------6205-------------------------------
INT 62 - Cswitch - SLEEP
    AH = 05h
    BX = seconds to sleep
SeeAlso: AH=01h,AH=06h,AH=08h
----------6206-------------------------------
INT 62 - Cswitch - SUSPEND
    AH = 06h
SeeAlso: AH=05h,AH=08h
----------6207-------------------------------
INT 62 - Cswitch - SPAWN
    AH = 07h
    ES:BX -> function address to start executing at
    CX = priority (1-10)
Return: AX = FFFDh  no free memory control blocks
       = FFFEh  no free task control blocks
       = FFFFh  not enough memory to create new task stack
       = >0        the tcb number of the new task, indicating no error
SeeAlso: AH=0Fh,AH=10h
----------6208-------------------------------
INT 62 - Cswitch - WAKE UP TASK
    AH = 08h
    BX = tcb identifier
SeeAlso: AH=05h,AH=06h
----------6209-------------------------------
INT 62 - Cswitch - SET PRIORITY
    AH = 09h
    BX = new base priority (1-10)
Note:    the lower the priority is numerically, the more often the task will run
----------620A-------------------------------
INT 62 - Cswitch - TEST MESSAGE QUEUE
    AH = 0Ah
    DX = queue number (0-63)
Return: AX = FFFFh bad queue number
       = 0000h nothing on queue
         else  number of bytes in first message in queue
SeeAlso: AH=0Bh,AH=0Ch
----------620B-------------------------------
INT 62 - Cswitch - SEND MESSAGE
    AH = 0Bh
    CX = number of bytes to write
    DS:SI -> buffer
    DX = queue number (0-63)
Return: AX = FFFEh triggered by something arriving, redo the call
       = FFFFh bad queue number
       = 0000h no message was on queue
         else  number of bytes in message
SeeAlso: AH=0Ah,AH=0Ch
----------620C-------------------------------
INT 62 - Cswitch - READ MESSAGE
    AH = 0Ch
    CX = number of bytes to read
    DS:SI -> buffer
    DX = queue number (0-63)
Return: AX = FFFFh bad queue number
         else  number of bytes transferred
SeeAlso: AH=0Ah,AH=0Bh
----------620D-------------------------------
INT 62 - Cswitch - DON'T ALLOW TASK TO BE SWAPPED OUT
    AH = 0Dh
SeeAlso: AH=0Eh
----------620E-------------------------------
INT 62 - Cswitch - ALLOW TASK TO BE SWAPPED OUT
    AH = 0Eh
SeeAlso: AH=0Dh
----------620F-------------------------------
INT 62 - Cswitch - LOAD AND RUN PROGRAM FROM DISK
    AH = 0Fh
    ES:BX -> command line
    CX = priority (1-10)
    DX = background flag
       = != 0000h  allows loading to EMS
Return: AX = 0000h task loader queue is full
       = 0001h  no error
SeeAlso: AH=07h,AH=10h,AH=13h
----------6210-------------------------------
INT 62 - Cswitch - TERMINATE SPAWNED PROGRAM
    AH = 10h
SeeAlso: AH=07h,AH=0Fh
----------6211-------------------------------
INT 62 - Cswitch - GET TCB INFORMATION
    AH = 11h
    ES:BX -> a pointer which will be set to the tcb address
Return: AX = tcb indentifier
SeeAlso: AH=12h
----------6212-------------------------------
INT 62 - Cswitch - GET TCB ADDRESS
    AH = 12h
    ES:BX -> a pointer which will be set to the tcb table address
Return: AX = tcb indentifier
SeeAlso: AH=11h
----------6213-------------------------------
INT 62 - Cswitch - CHECK STATUS OF PREVIOUS LOAD_TASK
    AH = 13h
Return: AX = FFFCh no Memory Control Blocks available
       = FFFDh no TCBs available
       = FFFEh insufficient memory
       = FFFFh cannot open file
       = 0000h load in progress (not done yet)
         else  tcb indentifier
SeeAlso: AH=0Fh
----------6247-------------------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 47h
    AL = subfunction (00h-31h)
    ???
    CF set
Return: ???
----------6248-------------------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 48h
    AL = ???
    ???
    CF set
Return: ???
----------6249-------------------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 49h
    ???
    CF set
Return: ???
Note:    may be the same as AH=4Ch
----------624A-------------------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 4Ah
    AL = subfunction (00h-46h)
    ???
    CF set
Return: ???
----------624B--BX1234-----------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 4Bh
    BX = 1234h
    CX = 1234h
    ES = ???
    CF set
Return: ???
----------624C-------------------------------
INT 62 - PC Tools 7 COMMUTE - ???
    AH = 4Ch
    BL = subfunction
        00h ???
        02h ???
Return: CF clear if successful
    CF set on error
----------626262-----------------------------
INT 62 - PC Tools 7 COMMUTE - INSTALLATION CHECK
    AX = 6262h
    CF set
Return: AX = 0000h
    BX = segment of resident code's PSP
----------63---------------------------------
INT 63 - reserved for user interrupt
----------63---------------------------------
INT 63 - Adaptec and OMTI controllers - DRIVE 0 DATA
SeeAlso: INT 62"Adaptec"
----------63---------------------------------
INT 63 - Oracle SQL Protected Mode Executive - ???
----------63---------------------------------
INT 63 - 4+Power FLOPPY CONTROLLER - ORIGINAL INT 13/40
   the "4+Power" quad floppy controller BIOS hooks INT 13 (or INT 40 if INT 13
   has been moved there) and places the old value here
----------64---------------------------------
INT 64 - reserved for user interrupt
----------64---------------------------------
INT 64 - Adaptec controllers - DRIVE 1 DATA
SeeAlso: INT 60"Adaptec"
----------64---------------------------------
INT 64 - Oracle SQL Protected Mode Executive - ???
----------64---------------------------------
INT 64 - Novell NetWare to v2.0a - LOW-LEVEL API
Note:    equivalent to INT 7A for NetWare versions through 2.0a only; later
      versions do not use this interrupt for IPX/SPX access, instead
      getting an entry point from INT 2F/AX=7A00h
SeeAlso: INT 2F/AX=7A00h,INT 7A"Novell"
----------64---------------------------------
INT 64 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
----------64---------------------------------
INT 64 - Extended Batch Language v3.14+
    AH = function
        00h to 5Fh chained to previous handler
        60h to 6Ch reserved, return immediately
        80h to FFh chained to previous handler
        6Dh (v4.01+) insert tone in queue
        AL = ???
        CX = frequency in Hertz
        DL = duration in clock ticks
        Return: AL = 00h if note stored
               = 01h if no room to store
        6Eh clear ??? counter/flag
        6Fh return counter/flag that AH=6Eh clears
        70h ???
        AL = ???
        71h ???
        AL = ???
        72h ???
        73h insert byte at end of keyboard buffer
        AL = byte to insert
        Return: AL = 00h if byte inserted
               = 01h if no room to store
        74h insert byte at front of keyboard buffer
        AL = byte to insert
        Return: AL = 00h if byte inserted
               = 01h if no room to store
        75h ???
        76h get keyboard "stack" status
        AL = 'K' if kbd read will read physical keyboard
             'S' if it will read EBL internal keyboard buffer
        AH = ???
        77h clear internal keyboard buffer
        78h ???
        AL = ???
        79h ???
        7Ah ???
        AL = ???
        7Bh ???
        AL = ???
        7Ch ???
        AL = ???
        7Dh ???
        AL = ???
        7Eh clear buffer for ???
        7Fh installation check
        Return: CX = version in BCD
            DI = segment of ???
            BX = segment of next program's PSP???
Notes:    Extended Batch Language is a batch-file enhancer by Seaware
    the chaining does not check whether the interrupt had been hooked
      before, so if you try to chain when the previous vector was
      0000h:0000h, you'll be in trouble
    functions 72h and 7Ah-7Dh appear to be interfaces to the optional
      floating-point and extended function packages
----------65---------------------------------
INT 65 - reserved for user interrupt
----------65---------------------------------
INT 65 - Adaptec controllers - DRIVE 1 DATA
SeeAlso: INT 64"Adaptec"
----------65---------------------------------
INT 65 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
----------65---------------------------------
INT 65 - FTP Software NDIS-Packet Driver adapter - POST PROCESSING INTERRUPT
----------65---------------------------------
INT 65 - SD.COM v6.2
   The unregistered version of SD62.COM uses the low byte of this vector to
   count the number of invocations, displaying a registration reminder each
   time after the 20th use.
----------65---------------------------------
INT 65 - Ad Lib SOUND.COM - INTERFACE
    SI = function number (see separate entries for details on several)
       = 0000h Init
       = 0002h RelTimeStart
       = 0003h SetState
       = 0004h GetState
       = 0005h Flush
       = 0006h SetMode
       = 0007h GetMode
       = 0008h SetRelVolume
       = 0009h SetTempo
       = 000Ah SetTranspose
       = 000Bh GetTranspose
       = 000Ch SetActVoice
       = 000Dh GetActVoice
       = 000Eh PlayNoteDel
       = 000Fh PlayNote
       = 0010h SetTimbre
       = 0011h SetPitch
       = 0012h SetTickBeat
       = 0013h NoteOn
       = 0014h NoteOff
       = 0015h Timbre
       = 0016h SetPitchBend
       = 0017h WaveForm
    ES:BX -> arguments
Note:    the installation check consists of checking for the signature block
      immediately preceding the interrupt handler (see below)

Format of signature block:
Offset    Size    Description
 00h    WORD    version number
 02h 19 BYTEs    "SOUND-DRIVER-AD-LIB"
 15h    BYTE    01h
 16h    BYTE    01h
 17h    BYTE    00h
----------65----SI0000-----------------------
INT 65 - Ad Lib SOUND.COM - INITIALIZE (RESET)
    SI = 0000h
----------65----SI0003-----------------------
INT 65 - Ad Lib SOUND.COM - SET STATE
    SI = 0003h
    ES:BX -> WORD state = 0000h disabled
                = 0001h enabled
SeeAlso: SI=0004h
----------65----SI0004-----------------------
INT 65 - Ad Lib SOUND.COM - GET STATE
    SI = 0004h
Return: AX = 0000h all done playing sounds
       = else  still playing sounds
SeeAlso: SI=0003h
----------65----SI0006-----------------------
INT 65 - Ad Lib SOUND.COM - SET MODE
    SI = 0006h
    ES:BX -> WORD mode = 0000h melodic
               = 0001h percussive
SeeAlso: SI=0007h
----------65----SI0007-----------------------
INT 65 - Ad Lib SOUND.COM - GET MODE
    SI = 0007h
Return: AX = 0000h melodic
       = 0001h percussive
SeeAlso: SI=0006h
----------65----SI000C-----------------------
INT 65 - Ad Lib SOUND.COM - SET ACTIVE VOICE
    SI = 000Ch
    ES:BX -> WORD voice = 0000h to 0008h
SeeAlso: SI=000Dh
----------65----SI000D-----------------------
INT 65 - Ad Lib SOUND.COM - GET ACTIVE VOICE
    SI = 000Dh
Return: AX = voice (0000h to 0008h)
SeeAlso: SI=000Ch
----------66---------------------------------
INT 66 - reserved for user interrupt
----------66---------------------------------
INT 66 - Adaptec controllers - DRIVE 1 DATA
SeeAlso: INT 65"Adaptec"
----------66---------------------------------
INT 66 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
----------66FFFBBXFFFB-----------------------
INT 66 - MicroHelp Stay-Res Plus - ???
    AX = FFFBh
    BX = FFFBh
    ???
Return: ???
SeeAlso: AX=FFFEh
----------66FFFEBXFFFE-----------------------
INT 66 - MicroHelp Stay-Res/Stay-Res Plus - UNINSTALL
    AX = FFFEh
    BX = FFFEh
Return: only if unsuccessful
Notes:    installation check is for the interrupt handler to begin with the bytes
      FBh 9Ch or 9Ch FAh, and the program name (not case-sensitive) to
      appear at offset 0005h (older versions) or the offset returned by
      AX=FFFFh/BX=FFF0h in the interrupt handler segment.
    Programs which use Stay-Res include ThesPlus (program name "THESPLUS")
      and Personal Calendar (program name "CAL") by Paul Mun~oz-Colman.
SeeAlso: AX=FFFBh,AX=FFFFh
----------66FFFFBXFFF0-----------------------
INT 66 - MicroHelp Stay-Res Plus - FIND PROGRAM NAME
    AX = FFFFh
    BX = FFF0h
Return: DI = offset of program name in interrupt handler segment
SeeAlso: AX=FFFBh,AX=FFFEh
----------660688-----------------------------
INT 66 - John W. Ratcliff (The IBM Digitized Sound Package)
    AX = 0688h
    ???
Return: ???
----------660689-----------------------------
INT 66 - John W. Ratcliff (The IBM Digitized Sound Package)
    AX = 0689h
    ???
Return: ???
----------67---------------------------------
INT 67 - Adaptec controllers - DRIVE 1 DATA
SeeAlso: INT 66"Adaptec"
----------6700-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE AND WAIT
    AH = 00h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status
        00h successful
        01h invalid function
        02h semaphore already locked
        03h unable to lock semaphore
        04h semaphore space exhausted
    AH = semaphore owner if status=02h
SeeAlso: AH=01h,AH=02h,INT 7F/AH=00h
----------6701-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE
    AH = 01h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see AH=00h)
    AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=02h,INT 7F/AH=01h"Alloy"
----------6702-------------------------------
INT 67 - PC-NET, Alloy NTNX - UNLOCK SEMAPHORE
    AH = 02h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see AH=00h)
    AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=01h,INT 7Fh/AH=02h
----------6740-------------------------------
INT 67 - LIM EMS - GET MANAGER STATUS
    AH = 40h
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested by application
Note:    this call can be used only after establishing that the EMS driver is in
      fact present
----------6741-------------------------------
INT 67 - LIM EMS - GET PAGE FRAME SEGMENT
    AH = 41h
Return: AH = 00h function successful
        BX = segment of page frame
    AH = error code (see AH=40h)
SeeAlso: AH=58h,AH=68h
----------6742-------------------------------
INT 67 - LIM EMS - GET NUMBER OF PAGES
    AH = 42h
Return: AH = 00h function successful
        BX = number of unallocated pages
        DX = total number of pages
    AH = error code (see AH=40h)
----------6743-------------------------------
INT 67 - LIM EMS - GET HANDLE AND ALLOCATE MEMORY
    AH = 43h
    BX = number of logical pages to allocate
Return: AH = status
        00h function successful
        DX = handle
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        85h no more handles available
        87h more pages requested than physically exist
        88h more pages requested than currently available
        89h zero pages requested
SeeAlso: AH=45h
----------6744-------------------------------
INT 67 - LIM EMS - MAP MEMORY
    AH = 44h
    AL = physical page number (0-3)
    BX = logical page number
    DX = handle
Return: AH = status
        00h function successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Ah invalid logical page number
        8Bh illegal physical-page number
SeeAlso: AH=69h
----------6745-------------------------------
INT 67 - LIM EMS - RELEASE HANDLE AND MEMORY
    AH = 45h
    DX = EMM handle
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        86h error in save or restore of mapping context
SeeAlso: AH=43h
----------6746-------------------------------
INT 67 - LIM EMS - GET EMM VERSION
    AH = 46h
Return: AH = status
        00h successful
        AL = EMM version number
        80h internal error
        81h hardware malfunction
        84h undefined function requested
----------6747-------------------------------
INT 67 - LIM EMS - SAVE MAPPING CONTEXT
    AH = 47h
    DX = handle
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Ch page-mapping hardware state save area is full
        8Dh save of mapping context failed
SeeAlso: AH=47h
----------6748-------------------------------
INT 67 - LIM EMS - RESTORE MAPPING CONTEXT
    AH = 48h
    DX = handle
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Eh restore of mapping context failed
SeeAlso: AH=47h
----------6749-------------------------------
INT 67 - LIM EMS - reserved - GET I/O PORT ADDRESSES
    AH = 49h
Note:    defined in EMS 3.0, but undocumented in EMS 3.2
----------674A-------------------------------
INT 67 - LIM EMS - reserved - GET TRANSLATION ARRAY
    AH = 4Ah
Note:    defined in EMS 3.0, but undocumented in EMS 3.2
----------674B-------------------------------
INT 67 - LIM EMS - GET NUMBER OF EMM HANDLES
    AH = 4Bh
Return: AH = status
        00h successful
        BX = number of EMM handles
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
----------674C-------------------------------
INT 67 - LIM EMS - GET PAGES OWNED BY HANDLE
    AH = 4Ch
    DX = EMM handle
Return: AH = status
        00h successful
        BX = number of logical pages
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
SeeAlso: AH=4Dh
----------674D-------------------------------
INT 67 - LIM EMS - GET PAGES FOR ALL HANDLES
    AH = 4Dh
    ES:DI -> array to receive information
Return: AH = status
        00h successful
        BX = number of active EMM handles
        array filled with 2-word entries, consisting of a handle
          and the number of pages allocated to that handle
        80h internal error
        81h hardware malfunction
        84h undefined function requested
SeeAlso: AH=4Ch
----------674E-------------------------------
INT 67 - LIM EMS - GET OR SET PAGE MAP
    AH = 4Eh
    AL = 00h if getting mapping registers
         01h if setting mapping registers
         02h if getting and setting mapping registers at once
         03h if getting size of page-mapping array
    DS:SI -> array holding information (AL=01/02)
    ES:DI -> array to receive information (AL=00/02)
Return: AH = status
        00h successful
        AL = bytes in page-mapping array (AL=03h only)
        array pointed to by ES:DI receives mapping info (AL=00h/02h)
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Fh undefined subfunction parameter
        A3h contents of source array corrupted (EMS 4.0?)
Note:    this function was designed to be used by multitasking operating systems
      and should not ordinarily be used by appplication software.
SeeAlso: AH=4Fh
----------674F-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET PARTIAL PAGE MAP
    AH = 4Fh
    AL = subfunction
        00h get partial page map
           DS:SI -> structure containing list of segments whose mapping
            contexts are to be saved
           ES:DI -> array to receive page map
        01h set partial page map
           DS:SI -> structure containing saved partial page map
        02h get size of partial page map
           BX = number of mappable segments in the partial map to be saved
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Bh one of specified segments is not mappable
        8Fh undefined subfunction parameter
        A3h contents of partial page map corrupted or count of mappable
        segments exceeds total number of mappable segments in system
    AL = size of partial page map for subfunction 02h
SeeAlso: AH=4Eh
----------6750-------------------------------
INT 67 - LIM EMS 4.0 - MAP/UNMAP MULTIPLE HANDLE PAGES
    AH = 50h
    AL = subfunction
        00h use physical page numbers
        01h use segment addresses
    DX = handle
    CX = number of entries in array
    DS:SI -> mapping array (see below)
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Ah one or more logical pages are invalid
        8Bh one or more physical pages are invalid
        8Fh invalid subfunction
SeeAlso: AH=40h

Format of mapping array entry:
Offset    Size    Description
 00h    WORD    logical page number or FFFFh to unmap physical page
 02h    WORD    physical page number or segment address
----------6751-------------------------------
INT 67 - LIM EMS 4.0 - REALLOCATE PAGES
    AH = 51h
    DX = handle
    BX = number of pages to be allocated to handle
Return: BX = actual number of pages allocated to handle
    AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        87h more pages requested than present in system
        88h more pages requested than currently available
----------6752-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE ATTRIBUTES
    AH = 52h
    AL = subfunction
        00h get handle attributes
        Return: AL = attribute
                00h handle is volatile
                01h handle is nonvolatile
        01h set handle attributes
        BL = new attribute (see returned AL)
        02h get attribute capability
        Return: AL = attribute capability
                00h only volatile handles supported
                01h both volatile and non-volatile supported
    DX = handle
Return:    AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Fh undefined subfunction
        90h undefined attribute type
        91h feature not supported
SeeAlso: AH=53h
----------6753-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE NAME
    AH = 53h
    AL = subfunction
        00h get handle name
           ES:DI -> 8-byte handle name array
        01h set handle name
           DS:SI -> 8-byte handle name
    DX = handle
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        83h invalid handle
        84h undefined function requested
        8Fh undefined subfunction
        A1h duplicate handle name
SeeAlso: AH=52h
----------6754-------------------------------
INT 67 - LIM EMS 4.0 - GET HANDLE DIRECTORY
    AH = 54h
    AL = subfunction
        00h get handle directory
           ES:DI -> buffer for handle directory (see below)
        01h search for named handle
           DS:SI -> 8-byte name
        02h get total number of handles
Return: AL = number of entries in handle directory (subfunction 00h)
    DX = value of named handle (subfunction 01h)
    BX = total number of handles (subfunction 02h)
    AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Fh undefined subfunction
        A0h no such handle name
        A1h a handle found had no name

Format of handle directory entry:
Offset    Size    Description
 00h    WORD    handle
 02h  8 BYTEs    handle's name
----------6755-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND JUMP
    AH = 55h
    AL = subfunction
        00h physical page numbers provided by caller
        01h segment addresses provided by caller
    DX = handle
    DS:SI -> structure containing map and jump address
Return: (at target address unless error)
    AH = status
        00h successful
        80h internal error
        81h hardware failure
        83h invalid handle
        84h undefined function requested
        8Ah invalid logical page number encountered
        8Bh invalid physical page number encountered
        8Fh invalid subfunction
SeeAlso: AH=56h
----------6756-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND CALL
    AH = 56h
    AL = subfunction
        00h physical page numbers provided by caller
        DX = handle
        DS:SI -> structure containing page map and call address
        01h segment addresses provided by caller
        DX = handle
        DS:SI -> structure containing page map and call address
        02h get page map stack space required
        Return: BX = stack space required
Return: (if successful, the target address is called.  Use a RETF to return and
     restore mapping context)
    AH = status (see AH=55h)
SeeAlso: AH=55h
----------6757-------------------------------
INT 67 - LIM EMS 4.0 - MOVE/EXCHANGE MEMORY REGION
    AH = 57h
    AL = subfunction
        00h move memory region
        01h exchange memory region
    DS:SI -> structure describing source and destination (see below)
Return: AH = status
        00h successful
        80h internal error
        81h hardware failure
        83h invalid handle
        84h undefined function requested
        8Ah invalid logical page number encountered
        8Fh undefined subfunction
        92h successful, but a portion of the source region has been
        overwritten
        93h length of source or destination region exceeds length of region
        allocated to either source or destination handle
        94h conventional and expanded memory regions overlap
        95h offset within logical page exceeds size of logical page
        96h region length exceeds 1M
        97h source and destination EMS regions have same handle and overlap
        98h memory source or destination type undefined
        A2h attempted to wrap around 1M conventional address space
Note:    source and destination may overlap for a move, in which case the copy
      direction is chosen such that the destination receives an intact copy
      of the source region

Format of EMS copy data:
Offset    Size    Description
 00h    DWORD    region length in bytes
 04h    BYTE    source memory type
        00h conventional
        01h expanded
 05h    WORD    source handle (0000h if conventional memory)
 07h    WORD    source initial offset (within page if EMS, segment if convent)
 09h    WORD    source initial segment (conv mem) or logical page (EMS)
 0Bh    BYTE    destination memory type
        00h conventional
        01h expanded
 0Ch    WORD    destination handle
 0Eh    WORD    destination initial offset
 10h    WORD    destination initial segment or page
----------6758-------------------------------
INT 67 - LIM EMS 4.0 - GET MAPPABLE PHYSICAL ADDRESS ARRAY
    AH = 58h
    AL = subfunction
        00h get mappable physical address array
        ES:DI -> buffer to be filled with array
        01h get number of entries in m.p.a. array
Return: CX = number of entries in array
    AH = status
        00h successful
        80h internal error
        81h hardware failure
        84h undefined function requested
        8Fh undefined subfunction
Note:    the returned array for subfunction 00h is filled in physical segment
      address order

Format of mappable physical address entry:
Offset    Size    Description
 00h    WORD    physical page segment
 02h    WORD    physical page number
----------6759-------------------------------
INT 67 - LIM EMS 4.0 - GET EXPANDED MEMORY HARDWARE INFORMATION
    AH = 59h
    AL = subfunction
        00h get hardware configuration array
        ES:DI -> buffer to be filled with array (see below)
        01h get unallocated raw page count
        Return: BX = unallocated raw pages
            DX = total raw pages
Return:    AH = status
        00h successful
        80h internal error
        81h hardware failure
        84h undefined function requested
        8Fh undefined subfunction
        A4h access denied by operating system
Note:    subfunction 00h is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system

Format of hardware configuration array:
Offset    Size    Description
 00h    WORD    size of raw EMM pages in paragraphs
 02h    WORD    number of alternate register sets
 04h    WORD    size of mapping-context save area in bytes
 06h    WORD    number of register sets assignable to DMA
 08h    WORD    DMA operation type
        0000h DMA with alternate register sets
        0001h only one DMA register set
----------675A-------------------------------
INT 67 - LIM EMS 4.0 - ALLOCATE STANDARD/RAW PAGES
    AH = 5Ah
    AL = subfunction
        00h allocate standard pages
        01h allocate raw pages
    BX = number of pages to allocate
Return: DX = handle
    AH = status
        00h successful
        80h internal error
        81h hardware failure
        84h undefined function requested
        85h no more handles available
        87h insufficient memory pages in system
        88h insufficient memory pages available
        8Fh undefined subfunction
----------675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET
    AH = 5Bh
    AL = subfunction
        00h get alternate map register set
        Return: BL = current active alternate map register set number
            ES:DI -> map register context save area if BL=00h
        01h set alternate map register set
        BL = new alternate map register set number
        ES:DI -> map register context save area if BL=0
        02h get alternate map save array size
        Return: DX = array size in bytes
        03h allocate alternate map register set
        Return: BL = number of map register set; 00h = not supported
        04h deallocate alternate map register set
        BL = number of alternate map register set
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Fh undefined subfunction
        9Ah specified alternate map register set not supported
        9Bh all alternate map register sets currently allocated
        9Ch alternate map register sets not supported
        9Dh undefined or unallocated alternate map register set
        A3h source array corrupted
        A4h operating system denied access
Note:    this function is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system
----------675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET - DMA REGISTERS
    AH = 5Bh
    AL = subfunction
        05h allocate DMA register set
        Return: BL = DMA register set number, 00h if not supported
        06h enable DMA on alternate map register set
           BL = DMA register set number
           DL = DMA channel number
        07h disable DMA on alternate map register set
           BL = DMA register set number
        08h deallocate DMA register set
           BL = DMA register set number
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Fh undefined subfunction
        9Ah specified DMA register set not supported
        9Bh all DMA register sets currently allocated
        9Ch alternate DMA sets not supported
        9Dh undefined or unallocated DMA register set
        9Eh dedicated DMA channels not supported
        9Fh specified dedicated DMA channel not supported
        A3h source array corrupted
        A4h operating system denied access
Note:    this function is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system
----------675C-------------------------------
INT 67 - LIM EMS 4.0 - PREPARE EXPANDED MEMORY HARDWARE FOR WARM BOOT
    AH = 5Ch
Return: AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
----------675D-------------------------------
INT 67 - LIM EMS 4.0 - ENABLE/DISABLE OS FUNCTION SET FUNCTIONS
    AH = 5Dh
    AL = subfunction
        00h enable OS Function Set
        01h disable OS Function Set
        02h return access key (resets memory manager, returns access key at
        next invocation)
    BX,CX = access key returned by first invocation
Return: BX,CX = access key, returned only on first invocation of function
    AH = status
        00h successful
        80h internal error
        81h hardware malfunction
        84h undefined function requested
        8Fh undefined subfunction
        A4h operating system denied access
----------6760-------------------------------
INT 67 - EEMS - GET PHYSICAL WINDOW ARRAY
    AH = 60h
    ES:DI -> buffer
Return: AH = status
    AL = number of entries
    buffer at ES:DI filled
----------6761-------------------------------
INT 67 - EEMS - GENERIC ACCELERATOR CARD SUPPORT
    AH = 61h
    ???
Return: ???
Note:    can be used by accelerator card manufacturer to flush RAM cache,
      ensuring that the cache accurately reflects what the processor would
      see without the cache.
----------6768-------------------------------
INT 67 - EEMS - GET ADDRESSES OF ALL PAGE FRAMES IN SYSTEM
    AH = 68h
    ES:DI -> buffer
Return: AH = status
    AL = number of entries
    buffer at ES:DI filled
Note:    equivalent to LIM 4.0 function 58h
----------6769-------------------------------
INT 67 - EEMS - MAP PAGE INTO FRAME
    AH = 69h
    AL = frame number
    BX = page number
    DX = handle
Return: AH = status
Note:    similar to EMS function 44h
SeeAlso: AH=44h,AH=50h,AH=6Ah
----------676A-------------------------------
INT 67 - EEMS - PAGE MAPPING
    AH = 6Ah
    AL = subfunction
        00h save partial page map
        CH = first page frame
        CL = number of frames
        ES:DI -> buffer which is to be filled
        01h restore partial page map
        CH = first page frame
        CL = number of frames
        DI:SI -> previously saved page map
        02h save and restore partial page map
        CH = first page frame
        CL = number of frames
        ES:DI = buffer for current page map
        DI:SI = new page map
        03h get size of save array
        CH = first page frame
        CL = number of frames
        Return: AL = size of array in bytes
        04h switch to standard map register setting
        05h switch to alternate map register setting
        06h deallocate pages mapped to frames in conventional memory
        CH = first page frame
        CL = number of frames
Return: AH = status
Note:    similar to EMS function 4Eh, except that a subrange of pages can be
      specified
SeeAlso: AH=69h
----------67DE00-----------------------------
INT 67 - Virtual Control Program Interface - INSTALLATION CHECK
    AX = DE00h
Return: AH = 00h    VCPI is present
        BH = major version number
        BL = minor version number
    AH nonzero  VCPI not present
----------67DE01-----------------------------
INT 67 - Virtual Control Program Interface - GET PROTECTED MODE INTERFACE
    AX = DE01h
    ES:DI -> 4K page table buffer
    DS:SI -> three descriptor table entries in GDT
        first becomes code segment descriptor, other two for use by
        main control program
Return: AH = 00h successful
        DI -> first unused page table entry in buffer
        EBX -> protected mode entry point in code segment
    AH = nonzero  failed
----------67DE02-----------------------------
INT 67 - Virtual Control Program Interface - GET MAX PHYSICAL MEMORY ADDRESS
    AX = DE02h
Return: AH = 00h  successful
        EDX = physical address of highest 4K memory page
    AH nonzero: failed
----------67DE03-----------------------------
INT 67 - Virtual Control Program Interface - GET NUMBER OF FREE 4K PAGES
    AX = DE03h
Return: AH = 00h  successful
        EDX = number of free 4K pages
    AH nonzero: failed
Notes:    returns total number of pages available to ALL tasks in system
    also available in protected mode by calling the protected-mode VCPI
      entry point
SeeAlso: AX=DE04h
----------67DE04-----------------------------
INT 67 - Virtual Control Program Interface - ALLOCATE A 4K PAGE
    AX = DE04h
Return: AH = 00h successful
        EDX = physical address of allocated page
    AH nonzero: failed
Notes:    the client program is responsible for freeing all memory allocated
      with this call before terminating
    also available in protected mode by calling the protected-mode VCPI
      entry point
SeeAlso: AX=DE03h,AX=DE05h
----------67DE05-----------------------------
INT 67 - Virtual Control Program Interface - FREE 4K PAGE
    AX = DE05h
    EDX = physical address of 4K page
Return: AH = 00h successful
    AH nonzero: failed
Note:    also available in protected mode by calling the protected-mode VCPI
      entry point
SeeAlso: AX=DE04h
----------67DE06-----------------------------
INT 67 - Virtual Control Program Interface - GET PHYS ADDR OF PAGE IN FIRST MB
    AX = DE06h
    CX = page number (linear address shifted right 12 bits)
Return: AH = 00h successful
        EDX = physical address of page
    AH nonzero: invalid page number (AH = 8Bh recommended)
----------67DE07-----------------------------
INT 67 - Virtual Control Program Interface - READ CR0
    AX = DE07h
Return: AH = 00h
    EBX = value of Control Register 0
SeeAlso: AX=DE07h
----------67DE08-----------------------------
INT 67 - Virtual Control Program Interface - READ DEBUG REGISTERS
    AX = DE08h
    ES:DI -> array of 8 DWORDs
Return: AH = 00h
    buffer filled with DR0 first, DR7 last, DR4 and DR5 unused
SeeAlso: AX=DE09h
----------67DE09-----------------------------
INT 67 - Virtual Control Program Interface - SET DEBUG REGISTERS
    AX = DE09h
    ES:DI -> array of 8 DWORDs holding new values of debug registers
Return: AH = 00h
Note:    values for DR4 and DR5 ignored
SeeAlso: AX=DE08h
----------67DE0A-----------------------------
INT 67 - Virtual Control Program Interface - GET 8259 INTERRUPT VECTOR MAPPINGS
    AX = DE0Ah
Return: AH = 00h successful
        BX = first vector used by master 8259 (IRQ0)
        CX = first vector used by slave 8259 (IRQ8)
    AH nonzero: failed
Note:    CX is undefined in systems without a slave 8259
SeeAlso: AX=DE0Bh
----------67DE0B-----------------------------
INT 67 - Virtual Control Program Interface - SET 8259 INTERRUPT VECTOR MAPPINGS
    AX = DE0Bh
    BX = first vector used by master 8259
    CX = first vector used by slave 8259
    interrupts disabled
Return: AH = 00h successful
    AH nonzero: failed
Notes:    This call merely informs the server that the client has changed the
      interrupt mappings.  The client may not change the mappings if they
      have already been changed by the server or another client, and is
      responsible for restoring the original mappings before terminating.
SeeAlso: AX=DE0Ah
----------67DE0C-----------------------------
INT 67 - Virtual Control Program Interface - SWITCH TO PROTECTED MODE
    AX = DE0Ch
    ESI = linear address in first megabyte of values for system registers
    interrupts disabled
Return: interrupts disabled
    GDTR, IDTR, LDTR, TR loaded
    SS:ESP must have at least 16 bytes space, and the entry point is
        required to set up a new stack before enabling interrupts
    EAX, ESI, DS, ES, FS, GS destroyed
SeeAlso: INT 15/AH=89h

Note:    in protected mode, calling the protected-mode VCPI entry point with
      AX = DE0Ch
      DS = segment selector from function DE01h
      SS:ESP in first megabyte of linear memory
      STACK:QWORD  return address from FAR call to 32-bit segment
        DWORD  EIP
        DWORD  CS
        DWORD  reserved for EFLAGS
        DWORD  ESP
        DWORD  SS
        DWORD  ES
        DWORD  DS
        DWORD  FS
        DWORD  GS
      and interrupts disabled, will switch to virtual86 mode with
      interrupts disabled, all segment registers loaded, and EAX destroyed.

Format of system register values for switch to protected mode:
Offset    Size    Description
 00h    DWORD    value for CR3
 04h    DWORD    linear address in first megabyte of value for GDTR
 08h    DWORD    linear address in first megabyte of value for IDTR
 0Ch    WORD    value for LDTR
 0Eh    WORD    value for TR
 10h    PWORD    CS:EIP of protected mode entry-point
----------67---------------------------------
INT 67 - Sangoma CCPOP 3270 resident module
----------6801-------------------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL
    AH = 01h
    DS:DX -> control block

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    verb (action)
 0Eh  6 BYTEs    00h
 14h    DWORD    (high byte first) return code (see below)
---if verb = 1B00h (DISPLAY)---
 18h    WORD    00h
 1Ah  8 BYTEs    (high byte first) logical unit ID
 22h  8 BYTEs    (high byte first) partner logical unit name
 2Ah  8 BYTEs    (high byte first) mode name
 32h    BYTE    logical unit session limit
 33h    BYTE    partner logical unit session limit
 34h    BYTE    node maximum negotiable session limit
 35h    BYTE    current session limit
 36h    BYTE    minimum negotiated winner limit
 37h    BYTE    maximum negotiated loser limit
 38h    BYTE    active session count
 39h    BYTE    active CONWINNER session count
 3Ah    BYTE    active CONLOSER session count
 3Bh    BYTE    session termination count
 3Ch    BYTE    bit 7: SESSION_TERMINATION_TARGET_DRAIN
        bit 6: SESSION_TERMINATION_SOURCE_DRAIN
---if verb=2000h (Attach Physical Unit)---
 18h    WORD    00h
 1Ah    BYTE    version
 1Bh    BYTE    release
 1Ch  8 BYTEs    (high byte first) net name
 24h  8 BYTEs    (high byte first) physical unit name
 2Ch  8 BYTEs    00h
 34h    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
 38h    DWORD    00h
 3Ch    BYTE    00h RETURN_CONTROL: COMPLETE
        01h RETURN_CONTROL: INCOMPLETE
---if verb=2100h (Attach Logical Unit)---
 18h    WORD    70  offset to partner logical unit record
 1Ah  8 BYTEs    (high byte first) logical unit name
 22h  8 BYTEs    (high byte first) logical unit ID
 2Ah    BYTE    logical unit local address
 2Bh    BYTE    logical unit session limit
 2Ch    DWORD    pointer to CREATE_TP_EXIT routine,
        FFFFFFFFh = reject incoming ALLOCATEs
        00000000h = queue ALLOCATEs
 30h    DWORD    00h
 34h    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
 38h    DWORD    00h
 3Ch    BYTE    maximum TPs
 3Dh    BYTE    queue depth
 3Eh    DWORD    pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh=no pswd exit
 42h    DWORD    00h
 46h    WORD    total length of partner records
    for each partner logical unit:
    WORD    length of this partner logical unit record
    WORD    42  offset to mode records
      8 BYTEs    (high byte first) partner logical unit name
    BYTE    partner logical unit security capabilities
        bit 7: already verified
        bit 6: conversation level security
        bit 5: session level security
    BYTE    partner logical unit session limit
    WORD    partner logical unit maximum MC_SEND_LL
      8 BYTEs    (high byte first) partner logical unit DLC name
    BYTE    partner logical unit adapter number
     17 BYTEs    (counted string) partner logical unit adapter address
    WORD    total length of mode records
   for each mode:
    WORD    16  length of this mode record
      8 BYTEs    (high byte first) mode name
    WORD    RU_SIZE high bound
    WORD    RU_SIZE low bound
    BYTE    mode maximum negotiable session limit
    BYTE    pacing size for receive
---if verb=2200h (Detach Logical Unit)---
 18h  8 BYTEs    (high byte first) logical unit ID
 20h    BYTE    00h
---if verb=2700h (Detach Physical Unit)---
 18h    BYTE    00h  type: hard
        01h  type: soft
---if verb=2B00h (Activate DLC)---
 18h  8 BYTEs    (high byte first) DLC name
 20h    BYTE    adapter number

Values for return code:
     0000h    successful
     0001h    BAD_TP_ID
     0002h    BAD_CONV_ID
     0003h    bad logical unit ID
     0008h    no physical unit attached
     0110h    bad state
     01B1h    BAD_PART_LUNAME
     01B2h    bad mode name
     0201h    physical unit already active
     0211h    logical unit already active
     0212h    BAD_PART_SESS
     0213h    BAD_RU_SIZES
     0214h    BAD_MODE_SESS
     0216h    BAD_PACING_CNT
     0219h    EXTREME_RUS
     021Ah    SNASVCMG_1
     0223h    SSCP_CONNECTED_LU
     0230h    invalid change
     0243h    too many TPs
     0272h    adapter close failure
     0281h    GET_ALLOC_BAD_TYPE
     0282h    unsuccessful
     0283h    DLC failure
     0284h    unrecognized DLC
     0286h    duplicate DLC
     0301h    SSCP_PU_SESSION_NOT_ACTIVE
     0302h    data exceeds RU size
     0401h    invalid direction
     0402h    invalid type
     0403h    segment overlap
     0404h    invalid first character
     0405h    table error
     0406h    conversion error
     F0010000h    APPC disabled
     F0020000h    APPC busy
     F0030000h    APPC abended
     F0040000h    incomplete

Routines defined by LU_LU_PASSWORD_EXIT, CREATE_TP_EXIT, and SYSTEM_LOG_EXIT
pointers are called by pushing the DWORD pointer to the verb on the stack and
then performing a FAR call.

Format of ACCESS_LU_LU_PW verb:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    1900h
 0Eh  8 BYTEs    (high byte first) logical unit ID
 16h  8 BYTEs    (high byte first) logical unit name
 1Eh  8 BYTEs    (high byte first) partner logical unit name
 26h 17 BYTEs    (counted string) partner fully qualified logical unit name
 37h    BYTE    password available (0=no, 1=yes)
 38h  8 BYTEs    password

Format of CREATE_TP verb:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    2300h
 0Eh  6 BYTEs    00h
 14h    DWORD    (high byte first) sense code
        00000000h    Ok
        080F6051h    SECURITY_NOT_VALID
        084B6031h    TP_NOT_AVAIL_RETRY
        084C0000h    TP_NOT_AVAIL_NO_RETRY
        10086021h    TP_NAME_NOT_RECOGNIZED
        10086034h    CONVERSATION_TYPE_MISMATCH
        10086041h    SYNC_LEVEL_NOT_SUPPORTED
 18h  8 BYTEs    (high byte first) TP ID
 20h  8 BYTEs    (high byte first) logical unit ID
 28h    DWORD    (high byte first) conversation ID
 2Ch    BYTE    0 basic conversation, 1 mapped conversation
 2Dh    BYTE    0 no sync level, 1 confirm
 2Eh    BYTE    reserved
 2Fh 65 BYTEs    (counted string) transaction program name
 70h  6 BYTEs    00h
 76h    WORD    length of ERROR_LOG_DATA to return
 78h    DWORD    pointer to ERROR_LOG_DATA buffer
 7Ch  8 BYTEs    (high byte first) partner logical unit name
 84h 18 BYTEs    (counted string) partner fully qualified logical unit name
 96h  8 BYTEs    (high byte first) mode name
 9Eh 12 BYTEs    00h
 AAh 11 BYTEs    (counted string) password
 B5h 11 BYTEs    (counted string) user ID
 C0h    BYTE    0 verification should be performed
        1 already verified

Format of SYSLOG verb:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    2600h
 0Eh 10 BYTEs    00h
 18h    WORD    (high byte first) type
 1Ah    DWORD    (high byte first) subtype
 1Eh    DWORD    pointer to ADDITIONAL_INFO
 22h    DWORD    (high byte first) conversation ID
 26h  8 BYTEs    (high byte first) TP ID
 2Eh  8 BYTEs    (high byte first) physical unit or logical unit name
 36h    WORD    length of data
 38h    DWORD    pointer to data
 3Ch    BYTE    00h
----------6802-------------------------------
INT 68 - APPC/PC - CONNECTION CONTROL
    AH = 02h
    DS:DX -> control block

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    verb (action)
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (high byte first) primary return code (see below)
 16h    DWORD    (high byte first) error code (see below)
 1Ah  8 BYTEs    (high byte first) TP_ID
 22h    DWORD    (high byte first) conversation ID
---if verb=0100h (Allocate or MC_Allocate)---
 26h    BYTE    (MC_Allocate only) 0 basic conversation
                   1 mapped conversation
 27h    BYTE    00h SYNC_LEVEL = none
        01h SYNC_LEVEL = confirm
 28h    WORD    0000h
 2Ah    BYTE    00h RETURN_CONTROL: when session allocated
        01h RETURN_CONTROL: immediate
        02h RETURN_CONTROL: when session free
 2Bh  8 BYTEs    00h
 33h  8 BYTEs    (high byte first) partner logical unit name
 3Bh  8 BYTEs    (high byte first) mode name
 43h 65 BYTEs    (counted string) TP name
 84h    BYTE    00h security: none
        01h security: same
        02h security: pgm
 85h 11 BYTEs    00h
 90h 11 BYTEs    (counted string) password
 9Bh 11 BYTEs    (counted string) user ID
 A6h    WORD    PIP_DATA length
 A8h    DWORD    pointer to PIP_DATA
---if verb=0300h (Confirm or MC_Confirm)---
 26h    BYTE  request to send received (0=no, 1=yes)
---if verb=0400h (Confirmed or MC_Confirmed), no additional fields---
---if verb=0500h (Deallocate or MC_Deallocate)---
 26h    BYTE    00h
 27h    BYTE    type 0 SYNC_LEVEL
             1 FLUSH
             2 ABEND_PROC
             3 ABEND_SVC
             4 ABEND_TIMER
             5 ABEND
 28h    WORD    (MC_Deallocate only) length of error log data
 2Ah    DWORD    (MC_Deallocate only) pointer to error log data
---if verb=0600h (Flush or MC_Flush), no additional fields---
---if verb=0700h (Get_Attributes or MC_Get_Attributes)---
 26h  8 BYTEs    (high byte first) logical unit ID
 2Eh    BYTE    00h
 2Fh    BYTE    SYNC_LEVEL (0=none, 1=confirm)
 30h  8 BYTEs    (high byte first) mode name
 38h  8 BYTEs    (high byte first) own net name
 40h  8 BYTEs    (high byte first) own logical unit name
 48h  8 BYTEs    (high byte first) partner logical unit name
 50h 18 BYTEs    (counted string) partner's fully qualified logical unit name
 62h    BYTE    00h
 63h 11 BYTEs    (counted string) user ID
---if verb=0800h (Get_Type)---
 26h    BYTE    type (0=basic conversation, 1=mapped conversation)
---if verb=0900h (Post_on_Receipt)---
 26h    WORD    maximum length
 28h    BYTE    fill (0=buffer, 1=LL)
---if verb=0A00h (Prepare_to_Receive or MC_Prepare_to_Receive)---
 26h    BYTE    type (0=SYNC_LEVEL, 1=FLUSH)
 27h    BYTE    locks (0=short, 1=long)
---if verb=0B00h (Receive_and_Wait or MC_Receive_and_Wait)---
 26h    BYTE    what received
        00h data
        01h data complete
        02h data incomplete
        03h confirm
        04h confirm send
        05h confirm deallocate
        06h send
 27h    BYTE    (MC_Receive_and_Wait only) fill (0=buffer, 1=LL)
 28h    BYTE    Request_to_Send_Received (0=no, 1=yes)
 29h    WORD    maximum length
 2Bh    WORD    data length
 2Dh    DWORD    pointer to data
---if verb=0C00h (Receive_Immediate or MC_Receive_Immediate)---
 26h    BYTE    what received
        00h data
        01h data complete
        02h data incomplete
        03h confirm
        04h confirm send
        05h confirm deallocate
        06h send
 27h    BYTE    (MC_Receive_Immediate only) fill (0=buffer, 1=LL)
 28h    BYTE    Request_to_Send_Received (0=no, 1=yes)
 29h    WORD    maximum length
 2Bh    WORD    data length
 2Dh    DWORD    pointer to data
---if verb=0E00h (Request_to_Send or MC_Request_to_Send), no other fields---
---if verb=0F00h (Send_Data or MC_Send_Data)---
 26h    BYTE    request to send received (0=no, 1=yes)
 27h    BYTE    00h
 28h    WORD    data length
 2Ah    DWORD    pointer to data
---if verb=1000h (Send_Error or MC_Send_Error)---
 26h    BYTE    request to send received (0=no, 1=yes)
 27h    BYTE    type (0=program, 1=SVC)
 28h    DWORD    00h
 2Ch    WORD    (MC_Send_Error only) LOG_DATA length
 2Eh    DWORD    (MC_Send_Error only) pointer to LOG_DATA
---if verb=1200h (Test or MC_Test)---
 26h    BYTE    (MC_Test only) test (0=posted, 1=request_to_send received)
        Note: error code has different interpretations for:
            0 posted data
            1 posted not data (primary return code = 0)
            1 bad TP_ID (primary return code = 1)
---if verb=1300h (Wait)---
 26h    BYTE    number of conversations to wait on
        Note: error codes have interpretations as for 1200h above

Values for primary return code:
 0000h    successful
 0001h    parameter check
 0002h    state check
 0003h    allocation error
 0005h    deallocate abended
 0006h    deallocate abended program
 0007h    deallocate abended SVC
 0008h    deallocate abended timer
 0009h    deallocate normal return
 000Ah    data posting blocked
 000Bh    posting not active
 000Ch    PROG_ERROR_NO_TRUNC
 000Dh    PROG_ERROR_TRUNC
 000Eh    PROG_ERROR_PURGING
 000Fh    CONV_FAILURE_RETRY
 0010h    CONV_FAILURE_NO_RETRY
 0011h    SVC_ERROR_NO_TRUNC
 0012h    SVC_ERROR_TRUNC
 0013h    SVC_ERROR_PURGING
 0014h    unsuccessful
 0018h    CNOS partner logical unit reject
 0019h    conversation type mixed
 F001h    APPC disabled
 F002h    APPC busy
 F003h    APPC abended
 F004h    incomplete

Values for error code:
 0001h bad TP ID
 0002h bad conversation ID
 0004h allocation error, no retry
 0005h allocation error, retry
 0006h data area crosses segment boundary
 0010h bad TPN length
 0011h bad CONV length
 0012h bad SYNC level
 0013h bad security selection
 0014h bad return control
 0015h SEC_TOKENS too big
 0016h PIP_LEN incorrect
 0017h no use of SNASVCMG
 0018h unknown partner mode
 0031h confirm: SYNC_NONE
 0032h confirm: bad state
 0033h confirm: NOT_LL_BDY
 0041h confirmed: bad state
 0051h deallocate: bad type
 0052h deallocate: flush bad state
 0053h deallocate: confirm bad state
 0055h deallocate: NOT_LL_BDY
 0057h deallocate: log LL_WRONG
 0061h flush: not send state
 0091h post on receipt: invalid length
 0092h post on receipt: not in receive state
 0093h post on receipt: bad fill
 00A1h prepare to receive:invalid type
 00A2h prepare to receive: unfinished LL
 00A3h prepare to receive: not in send state
 00B1h receive and wait: bad state
 00B2h receive and wait: NOT_LL_BDY
 00B5h receive and wait: bad fill
 00C1h receive immediate: not in receive state
 00C4h receive immediate: bad fill
 00E1h request to send: not in receive state
 00F1h send data: bad LL
 00F2h send data: not in send state
 0102h send error: log LL wrong
 0103h send error: bad type
 0121h test: invalid type
 0122h test: not in receive state
----------6803-------------------------------
INT 68 - APPC/PC
    AH = 03h
    DS:DX -> control block (see below)

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    verb (action)
 0Eh  6 BYTEs    0
 14h    DWORD    (high byte first) return code (see AH=01h)
 18h    WORD    0
 1Ah  8 BYTEs    (high byte first) logical unit ID
---if verb=2400h (TP Started), control block continues---
 22h  8 BYTEs    (high byte first) TP ID
---if verb=2800h (Get ALLOCATE), control block continues---
 22h    BYTE    type
        00h dequeue
        01h test
 23h    DWORD    pointer to CREATE_TP record
---if verb=2A00h (Change Logical Unit). control block continues---
 22h    DWORD    pointer to CREATE_TP_EXIT routine
        FFFFFFFFh reject incoming ALLOCATEs
        00000000h queue ALLOCATEs
 26h    DWORD    00000000h
 2Ah    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh= don't log errors
 2Eh    DWORD    00000000h
 32h    BYTE    maximum TPs
 33h    BYTE    00h stop QUEUE_ALLOCATEs
        01h resume QUEUE_ALLOCATEs
 34h    DWORD    pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh = no exit
 38h    DWORD    00000000h
----------6804-------------------------------
INT 68 - APPC/PC
    AH = 04h
    DS:DX -> control block (see below)

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    verb (action)
        2500h TP_ENDED
        2900h TP_VALID
 0Eh  6 BYTEs    0
 14h    DWORD    (high byte first) return code (see AH=01h)
 18h    WORD    0
 1Ah  8 BYTEs    (high byte first) TP_ID
 22h    DWORD -> CREATE_TP record (only if verb = 2900h)
----------6805-------------------------------
INT 68 - APPC/PC - TRANSFER MSG DATA
    AH = 05h
    DS:DX -> control block (see below)

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    1C00h
 0Eh    BYTE    00h user defined
        01h NMVT
        02h alert subvectors
        03h PDSTATS subvectors
 0Fh  5 BYTEs    0
 14h    DWORD    (high byte first) return code (see AH=01h)
 18h 12 BYTEs    0
 24h    BYTE    if bit 0 clear, add correlation subvector
        if bit 1 clear, add product set ID subvector
        if bit 2 clear, do SYSLOG
        if bit 3 clear, send SSCP_PU_SESSION
 25h    BYTE    0
 26h    WORD    length of data
 28h  N BYTEs    data
----------6806-------------------------------
INT 68 - APPC/PC - CHANGE NUMBER OF SESSIONS
    AH = 06h
    DS:DX -> control block (see below)

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    1500h
 0Eh  6 BYTEs    0
 14h    WORD    (high byte first) primary return code (see AH=02h)
 16h    DWORD    (high byte first) secondary return code (see below, AH=01h)
 1Ah  8 BYTEs    (high byte first) logical unit ID
 22h  8 BYTEs    blanks
 2Ah  8 BYTEs    (high byte first) partner logical unit name
 32h  8 BYTEs    (high byte first) mode name
 3Ah    BYTE    bit 7: use MODE_NAME_SELECT_ALL rather than MODE_NAME
        bit 6: set negotiable values
 3Bh    BYTE    partner logical unit mode session limit
 3Ch    BYTE    minimum CONWINNERS_SOURCE
 3Dh    BYTE    maximum CONWINNERS_TARGET
 3Eh    BYTE    automatic activation
 3Fh    BYTE    0
 40h    BYTE    bit 7: drain target
        bit 6: drain source
        bit 5: target responsible, not source

Values for secondary return code (see also AH=01h):
  0000h accepted
  0001h negotiated
  0003h bad logical unit ID
  0004h allocation failure, no retry
  0005h allocation failure, retry
  0151h can't raise limits
  0153h all modes must reset
  0154h bad SNASVCMG limits
  0155h minimum greater than total
  0156h mode closed (prim return code = 1)
    CNOS mode closed (prim return code = 18h)
  0157h bad mode name (prim return code = 1)
    CNOS bad mode name (prim return code = 18h)
  0159h reset SNA drains
  015Ah single not SRC response
  015Bh bad partner logical unit
  015Ch exceeds maximum allowed
  015Dh change SRC drains
  015Eh logical unit detached
  015Fh CNOS command race reject
----------6807-------------------------------
INT 68 - APPC/PC - PASSTHROUGH
    AH = 07h
    DS:DX -> control block (format depends on application subsystem)
SeeAlso: AH=FFh
----------68FA-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE APPC
    AH = FAh
    AL bit 0 = 0 enable
           1 disable
----------68FB-------------------------------
INT 68 - APPC/PC - CONVERT
    AH = FBh
    DS:DX -> control block (see below)

Format of control block:
Offset    Size    Description
 00h 12 BYTEs    reserved
 0Ch    WORD    1A00h
 0Eh  6 BYTEs    0
 14h    DWORD    (high byte first) return code
 18h    BYTE    conversion
           00h ASCII to EBCDIC
           01h EBCDIC to ASCII
 19h    BYTE    character set
           00h AE
           01h A
           02h G
 1Ah    WORD    length of string to convert
 1Ch    DWORD    pointer to source
 20h    DWORD    pointer to target
----------68FC-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE MESSAGE TRACING
    AH = FCh
    AL = 00h disable tracing
       = 01h enable tracing
        DX = number of bytes to keep (0=all)
SeeAlso: AH=FDh
----------68FD-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE API VERB TRACING
    AH = FDh
    AL = 00h disable tracing
         01h enable tracing
SeeAlso: AH=FCh,AH=FEh
----------68FE-------------------------------
INT 68 - APPC/PC - SET TRACE DESTINATION
    AH = FEh
    AL = trace destinations
        bit 0  storage (DS:DX -> trace stats record)
        bit 1  display
        bit 2  file (trace written to file OUTPUT.PC)
        bit 3  printer
SeeAlso: AH=FDh

Format of Trace Statistics Record:
Offset    Size    Description
 00h    DWORD    pointer to storage trace buffer
 04h    WORD    max number of 80-byte records in trace
 06h    WORD    (high-order byte first!) current record number (must init to 0)
 08h    DWORD    (high-order byte first!) number of records written (init to 0)
 0Ch    DWORD    reserved
Note:    do not move record while trace is active
----------68FF-------------------------------
INT 68 - APPC/PC - SET PASSTHROUGH
    AH = FFh
    DS:DX -> passthrough exit routine
SeeAlso: AH=07h
----------68---------------------------------
INT 68 - Sangoma CCPOP 3270 resident module
----------69---------------------------------
INT 69 - Zenith AT BIOS - ???
   called by INT 09 handler
----------690100-----------------------------
INT 69 - DECnet DOS CTERM - INSTALLATION CHECK
    AX = 0100h
Return: AL = FFh if present
SeeAlso: AX=010Fh
----------690101-----------------------------
INT 69 - DECnet DOS CTERM - SEND BYTE
    AX = 0101h
    BL = character
    DX = session handle
Return: AH >= 80h on error
SeeAlso: AX=0102h
----------690102-----------------------------
INT 69 - DECnet DOS CTERM - READ BYTE
    AX = 0102h
    DX = session handle
Return: AH >= 80h on error
    AH < 80h if successful
        AL = character
SeeAlso: AX=0101h
----------690103-----------------------------
INT 69 - DECnet DOS CTERM - STATUS
    AX = 0103h
    DX = session handle
Return: AH status flags
        bit 7 session has been aborted
        6 DECnet error
        1 trace data available
        0 receive data available
    AL = reason code if DECnet error
        00h normal disconnect
        01h unknown message from host
        02h protocol violation from host
        03h could not process the initiate message
        04h error receiving message from host
        05h error sending message to host
        06h error checking for message from host
        07h remote system does not support CTERM
        08h remote system does not support correct protocol version
        09h did not receive BIND message from host
        0Ah could not send BIND message to host
        0Bh no more sessions available
        0Ch session does not exist
        0Dh not enough memory to complete operation
        0Eh connection has broken
SeeAlso: AX=0104h
----------690104-----------------------------
INT 69 - DECnet DOS CTERM - DECnet STATUS
    AX = 0104h
    DX = session handle
Return: AX = reason code (see AX=0103h)
Note:    use this call when AX=0103h returns a DECnet error
SeeAlso: AX=0103h
----------690105-----------------------------
INT 69 - DECnet DOS CTERM - OPEN SESSION
    AX = 0105h
    DS:BX -> ASCIZ node name
    ES:DX -> buffer for session control block (see INT 6A/AH=D0h)
Return: AX <= 0 on error
    AX > 0 session handle
SeeAlso: AX=0103h,AX=0106h,AX=010Ah
----------690106-----------------------------
INT 69 - DECnet DOS CTERM - CLOSE SESSION
    AX = 0106h
    DX = session handle
Return: AH = 00h good close
       other error code (see AX=0103h)
SeeAlso: AX=0103h,AX=0105h
----------69010A-----------------------------
INT 69 - DECnet DOS CTERM - GET SESSION CONTROL BLOCK SIZE
    AX = 010Ah
Return: AX = length of session control block in bytes
SeeAlso: AX=0105h
----------69010B-----------------------------
INT 69 - DECnet DOS CTERM - GET DECnet SOCKET
    AX = 010Bh
    DX = session handle
Return: AX > 0    DECnet socket for the session
       = 0    no match for handle
----------69010F-----------------------------
INT 69 - DECnet DOS CTERM - DEINSTALL CTERM
    AX = 010Fh
Return: AH = 00h succesful uninstall
       other error code
Note:    CTERM must have been the last TSR loaded in order to deinstall it
SeeAlso: AX=0100h
----------6A---------------------------------
INT 6A - OPTHELP.COM
Notes:    OPTHELP is an optionally-resident help system for SLR Systems's OPTASM
      assembler
    may be configured to use any interrupt from 60h to 7Fh (default 6Ah)
----------6A---------------------------------
INT 6A - DECnet DOS - LOCAL AREA TRANSPORT PROGRAM
Note:    the 3 bytes preceding the interrupt handler are "LAT"; this serves as
      the installation check
----------6A01--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BYTE
    AH = 01h
    DH = FFh
    AL = character
    DL = handle
Return: AH >= 80h on error
SeeAlso: AH=02h
----------6A02--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - READ BYTE
    AH = 02h
    DH = FFh
    DL = handle
Return: AH < 80h if successful
        AL = character
    AH >= 80h on error
SeeAlso: AH=01h
----------6A03--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - STATUS
    AH = 03h
    DH = FFh
    DL = handle
Return: AH = status flags
        bit 5 transmit buffer empty
        3 session in start state
        2 session not active
        1 unable to queue transmit data
        0 receive data available
----------6AD0--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - OPEN SESSION
    AH = D0h
    DH = FFh
    AL = FFh no password
       = 0Fh password at ES:DI
    ES:BX -> LAT session control block (see below)
    ES:DI -> 16-byte blank-padded password
Return: AH = 00h success
        DL = handle
SeeAlso: AX=D000h

Format of LAT Session Control Block:
Offset    Size    Description
 00h 18 BYTEs    service name
 12h 18 BYTEs    node name (future use)
 24h 18 BYTEs    port name (future use)
 36h    DWORD    -> session stopped post routine
 3Ah    DWORD    -> service table overflow post routine
 3Eh    DWORD    -> transmit post routine
 42h    DWORD    -> receive post routine
 46h    WORD    session status
        04h circuit failure
        08h stop slot received
 48h    WORD    slot state (LAT driver use)
 4Ah    WORD    local credits (LAT driver use)
 4Ch    DWORD    -> VCB (LAT driver use)
 50h    WORD    backward slot (LAT driver use)
 52h    WORD    forward slot (LAT driver use)
 54h    WORD    remote slot ID (LAT driver use)
 56h    WORD    local slot ID (LAT driver use)
 58h    WORD    slot byte count (LAT driver use)
 5Ah    BYTE    remote credits (LAT driver use)
 5Bh 255 BYTEs    transmitted data slot
15Ah    BYTE    number of receive data slots (4 recommended)
15Bh    BYTE    number of occupied slots
15Ch    BYTE    index of next receive slot to use
15Dh    BYTE    index of current receive slot
15Eh    WORD    pointer to first received character
160h  N WORDs    pointers to receive slots (buffers); each is 259 bytes
Note:    set post routines to 0000h:0000h if polled operation will be used
----------6AD000DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - CLOSE SESSION
    AX = D000h
    DH = FFh
    DL = handle
Return: AX = 0000h successful
       = 0001h no such session
       = 0002h session not running, try again later
SeeAlso: AH=D0h
----------6AD100DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BREAK
    AX = D100h
    DH = FFh
    DL = handle
Return: AX = 0000h if successful
    AH bit 7 set if unable to send break
----------6AD300DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - RESET LAT COUNTERS
    AX = D300h
    DH = FFh
SeeAlso: AX=D400h
----------6AD400DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - COPY LAT COUNTERS
    AX = D400h
    DH = FFh
    CX = buffer size
    ES:BX -> buffer for LAT counters
Return: AX = 0000h counters copied into buffer
       = FFFFh buffer too small
SeeAlso: AX=D300h
----------6AD500DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - GET NEXT LAT SERVICE NAME
    AX = D500h
    DH = FFh
    ES:BX -> 17-byte buffer for name
Return: AH = 00h if successful
       ES:BX buffer filled
    AX = FFFFh if end of table or no name available
Notes:    use this function to get the names of the hosts on the network
    successive calls are necessary to get all names
SeeAlso: AX=D600h
----------6AD600DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - LAT SERVICE TABLE RESET
    AX = D600h
    DH = FFh
Return: AX = number of service table entries
    BX = 0000h service table has not overflowed
       = FFFFh service table has overflowed
SeeAlso: AX=D500h
----------6B0000-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED WRITE
    AX = 0000h
    CX = length
    ES:BX -> buffer
Return: CX = number of bytes written
Note:    also supported by NPC NCSI
SeeAlso: AX=0100h,AH=18h,INT 14/AH=19h
----------6B0100-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED READ
    AX = 0100h
    CX = length of buffer
    ES:BX -> buffer
Return: CX = number of bytes read
Note:    also supported by NPC NCSI
SeeAlso: AX=0000h,AH=19h,INT 14/AH=18h,INT 14/AX=FF02h
----------6B02-------------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - INSTALL CHECK
    AH = 02h
    AL nonzero
Return: AL = 00h if present and OK
Note:    also supported by NPC NCSI
SeeAlso: AX=0700h
----------6B0600-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - CONTROL
    AX = 0600h
    CX = command
        02h send break
        04h disconnect
        06h hold
Note:    also supported by NPC NCSI
----------6B0700-----------------------------
INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - GET STATUS
    AX = 0700h
Return: CH <> 00h if connection active
Note:    also supported by NPC NCSI
SeeAlso: AH=02h,AH=10h
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - GET STATUS
    AH = 10h
    ???
Return: ???
SeeAlso: AX=0700h,AH=12h,AH=1Fh
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - ALLOCATE A VIRTUAL CIRCUIT
    AH = 11h
    ???
Return: ???
SeeAlso: AH=12h,AH=15h,AH=16h,AH=17h,AH=18h
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - VIRTUAL CIRCUIT STATUS
    AH = 12h
    ???
Return: ???
SeeAlso: AH=10h,AH=15h,AH=1Ah,AH=1Bh,AH=1Fh
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE REQUEST/REPLY SERVICE NAME
    AH = 13h
    ???
Return: ???
SeeAlso: AH=14h,AH=15h
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE SERVICE ADDRESS
    AH = 14h
    ???
Return: ???
SeeAlso: AH=13h,AH=15h,AH=21h
---------------------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - SET/RETRIEVE VIRTUAL CIRCUIT CONFIG
    AH = 15h
    ???
Return: ???
SeeAlso: AH=13h,AH=14h
----------6B16-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - LOG AND/OR INITIALIZE VIRTUAL CIRCUIT
    AH = 16h
    ???
Return: ???
SeeAlso: AH=11h,AH=12h,AH=17h
----------6B17-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - DISCONNECT A VIRTUAL CIRCUIT
    AH = 17h
    ???
Return: ???
SeeAlso: AH=11h,AH=16h
----------6B18-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - WRITE DATA ON A VIRTUAL CIRCUIT
    AH = 18h
    ???
Return: ???
SeeAlso: AX=0000h,AH=12h,AH=19h
----------6B19-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - READ DATA ON A VIRTUAL CIRCUIT
    AH = 19h
    ???
Return: ???
SeeAlso: AX=0100h,AH=12h,AH=18h
----------6B1A-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - RECEIVE STATUS
    AH = 1Ah
    ???
Return: ???
SeeAlso: AH=12h,AH=1Bh
----------6B1B-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT STATUS
    AH = 1Bh
    ???
Return: ???
SeeAlso: AH=12h,AH=1Ah
----------6B1C-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - RECEIVE BUFFER CONTROL
    AH = 1Ch
    ???
Return: ???
SeeAlso: AH=1Dh,AH=1Eh
----------6B1D-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - TRANSMIT BUFFER CONTROL
    AH = 1Dh
    ???
Return: ???
SeeAlso: AH=1Ch,AH=1Eh
----------6B1E-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - ISSUE CONTROL REQUEST
    AH = 1Eh
    ???
Return: ???
SeeAlso: AH=1Ch,AH=1Dh
----------6B1F-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - EXTERNAL STATUS
    AH = 1Fh
    ???
Return: ???
SeeAlso: AH=10h,AH=12h
----------6B21-------------------------------
INT 6B - NPC NCSI EXTENDED SERIAL I/O - QUERY NAME SERVICE
    AH = 21h
    ???
Return: ???
SeeAlso: AH=14h
----------6B6B-------------------------------
INT 6B - Tandy SCHOOLMATE PLUS - API
    AH = 6Bh
    AL = E0h to FFh
----------6B---------------------------------
INT 6B - "Saddam" virus - ???
SeeAlso: INT 21/AX=FFFFh,INT 60"virus",INT 70"virus"
----------6C---------------------------------
INT 6C - system resume vector (CONVERTIBLE)
----------6C---------------------------------
INT 6C - DOS 3.2 Realtime Clock update
----------6D---------------------------------
INT 6D - VGA - internal
Note:    used by IBM, Paradise, Video7, and NCR
----------6D---------------------------------
INT 6D - ATI VGA Wonder - VIDEO BIOS ENTRY POINT
   points at the original INT 10 entry point set up by the ATI BIOS
SeeAlso: INT 10
----------6D---------------------------------
INT 6D - DECnet DOS - DATA LINK LAYER PROGRAM
----------6E---------------------------------
INT 6E - DECnet DOS - DECnet NETWORK PROCESS API
Notes:    this is the main DECnet DOS access, and is described in Digital manual
      AA-EB46B-TV ("DECnet-DOS Programmer's Reference Manual")
    there is a signature/data area immediately prior to the interrupt
      handler which may be used as an installation check

Format of signature area:
Offset    Size    Description
 -5    BYTE    major version number
 -4    BYTE    minor version number
 -3   3 BYTEs    signature (ASCII "DNP")
----------6F----BP0012-----------------------
INT 6F - HP ES-12 EXTENDED BIOS - READ CMOS MEMORY
    BP = 0012h
    AH = 22h
    BL = address of CMOS byte to read
Return: AH = status
    AL = byte read
    BP, DS destroyed
SeeAlso: BP=0012h/AH=24h
----------6F----BP0012-----------------------
INT 6F - HP ES-12 EXTENDED BIOS - WRITE CMOS MEMORY
    BP = 0012h
    AH = 24h
    BL = address of CMOS byte to write
    AL = new value
Return: AH = status
    BP, DS destroyed
SeeAlso: BP=0012h/AH=22h
----------6F---------------------------------
INT 6F - Novell NetWare - PCOX API (3270 PC terminal interface)
----------6F00-------------------------------
INT 6F - 10-NET - LOGIN
    AH = 00h
    DS:DX -> login record (see below)
Return: CL = security level
    AX = status
        0000h successful
        01FFh time out on response
        02FFh network (hardware) error
        03FFh invalid password
        04FFh local resource not available
        05FFh server resource not available
        06FFh already logged in under different name
        07FFh login security failure (node)
        08FFh not logged in
        09FFh position calc error
        0AFFh receive subfunction not = send subfunction (i.e. read, write)
        0BFFh request function not in range
        0CFFh no more server file handle entries left
        0DFFh no more shared file table entries left
        0EFFh no more user file handle entries left
        0FFFh chat permit not on
        10FFh not a server on request
        11FFh no transporter board error
        12FFh time out on send
        13FFh item not found (spool item not on queue)
        14FFh DOS access incompatible
        15FFh record already locked
        16FFh invalid parameter
        17FFh record lock time out error
        18FFh currently spooling to named device
        19FFh dropped receive message (throttle)
        1AFFh open sharing violation
        1BFFh no more tuf entries left
        1CFFh not file owner on open
        1DFFh read security not passed
        1EFFh write security not passed
        1FFFh group security not passed
        20FFh security file failure
        21FFh activity file failure
        22FFh spool cntrl file failure
        23FFh device not mounted (spooling)
        24FFh spool file has not been terminated
        25FFh device not mounted or is not being shared
        26FFh duplicate node id
        27FFh file not found error
        28FFh no more files
        29FFh unknown internal system error
        2AFFh print queue is full or corrupted
        2BFFh invalid function
        2CFFh invalid handle
        2DFFh too many files opened
        2EFFh path not found
        2FFFh named file is active
/* I've gotten one submission which says FFxxh, and another with xxFFh */
/* I don't know which way around these should be, does somebody else know? */
        FF01h timeout
        FF02h network error
        FF03h invalid password
        FF04h no local buffer
        FF05h superstation not available
        FF06h node already logged in
        FF07h login not valid from this node
        FF08h node ID already in use
        FF16h invalid parameter (bad length, invalid node ID, etc)
        FF17h record locked by another user
        FF18h sent message has been dropped
SeeAlso: AH=01h

Format of login record:
Offset    Size    Description
 00h  8 BYTEs    user name
 08h  8 BYTEs    password
 10h 12 BYTEs    name of SuperStation
----------6F01-------------------------------
INT 6F - 10-NET - LOGOFF
    AH = 01h
    DS:DX -> superstation ID or nulls (12 bytes)
Return: CX = number of files closed
    AX = status (see AH=00h)
        FF08h superstation ID not already logged in
SeeAlso: AH=00h
----------6F02-------------------------------
INT 6F - 10-NET - STATUS OF NODE
    AH = 02h
    DS:DX -> 512-byte status record (see below)
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful

Format of node status record:
Offset    Size    Description
 00h  8 BYTEs    user name (0 if none)
 08h    BYTE    station type
           00h workstation
           01h superstation
           02h gateway station
           03h gateway active
           04h logged into multiple superstations
           05h reserved
 09h 24 BYTEs    list of superstations logged into more than one superstation
 21h 12 BYTEs    node ID
 2Dh    WORD    message count for this station (send for user node, receive for
        superstations)
---for superstations only---
 2Fh    WORD    drives allocated (bit 0=A:, bit 1=B:,...)
 31h    BYTE    user service flag
        bit 7: gate
            6: print permit on
            4: SUBMIT is on
            3: mail waiting for node
            2: calendar waiting for you
            1: news waiting for you
            0: mail waiting for you
 32h    BYTE    printers allocated (bit 0=LPT1,...)
 33h    BYTE    number of unprinted spool files
 34h    BYTE    number of opened files
 35h    BYTE    number of logged on nodes
 36h    BYTE    primary drive (1=A:)
 37h    BYTE    reserved
 38h  N BYTEs    list of logged on node IDs (each 12 bytes, max 37 IDs)
1F4h  3 BYTEs    time: sec/min/hrs
1F7h  3 BYTEs    date: day/mon/year-1980
----------6F03-------------------------------
INT 6F - 10-NET - GET ADDRESS OF CONFIGURATION TABLE
    AH = 03h
    DS:DI -> node ID (optional)
Return: ES:BX -> configuration table
SeeAlso: AH=13h

Format of configuration table:
Offset    Size    Description
-41    WORD    local device table address
-39    WORD    extended network error mapping table address
-37    WORD    shared device table address
-35    WORD    mounted device table address
-33    BYTE    receive buffer counter
-32    BYTE    collect buffer counter
-31    WORD    TUF address
-29    BYTE    enable flag
-28    BYTE    FCB keep flag
-27    WORD    reserved
---up to here, 10-Net v3.3---
-25    WORD    count of dropped Send6F
-23    WORD    buffer start address
-21    WORD    comm driver base address
-19    WORD    send/receive retry count
-17    BYTE    number of 550ms loops before timeout
-16    WORD    UFH address
-14    WORD    CDIR address
-12    WORD    LTAB address
-10    WORD    SFH address
-8    WORD    FTAB address
-6    WORD    RLTAB address
-4    WORD    SMI address
-2    WORD    NTAB address
 00h    WORD    address of first CT_DRV
 02h    BYTE    number of DRV entries
 03h  8 BYTEs    login name
 0Bh 12 BYTEs    node ID (blank-padded)
 17h  6 BYTEs    node address
 1Dh    BYTE    flag
 1Eh    BYTE    CT_CFLG (chat permit)
        bit 1: sound bell
        bit 0: CHAT permit
 1Fh    BYTE    CT_PSFLG
        bit 5: PRINT permit
        bit 4: KB initiated
        bit 3: CHAT called FOXPTRM
        bit 2: SUBMIT active
        bit 1: SUBMIT received
        bit 0: SUBMIT permit
 20h    BYTE    in 10Net flag
 21h    WORD    receive message count
 23h    WORD    send message count
 25h    WORD    retry count
 27h    WORD    failed count
 29h    WORD    driver errors
 2Bh    WORD    dropped responses/CHATs
 2Dh  9 BYTEs    LIST ID/NTAB address (3 entries--LPT1-3)
 36h  6 BYTEs    AUX ID/NTAB address (2 entries--COM1-2)
 3Ch    BYTE    active CB channel
 3Dh    BYTE    received 6F messages on queue
 3Eh  9 BYTEs    activity counters for channels 1-9
---beyond here, 10-Net v3.3---
 47h    BYTE    bit 0 = RS232 gate
            1 = Send6F gate (user set)
 48h    DWORD    pointer into gate (user set)
 4Ch    DWORD    pointer into 10Net send
 50h  N WORDs    addresses of timer blocks
----------6F04-------------------------------
INT 6F - 10-NET - SEND
    AH = 04h
    DS:BX -> record
        12 BYTEs receiving node's ID
            if first byte has high-order bit set, message is
               directed to the CT_RGATE vector at the receiver
            if second byte is 00h, first byte is taken as a CB
               channel number and delivered to all nodes on same
               channel
           WORD     length of data at DX
    DS:DX -> data (max 1024 bytes)
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
SeeAlso: AH=05h
----------6F05-------------------------------
INT 6F - 10-NET - RECEIVE
    AH = 05h
    CX = number of seconds before timeout
    DS:DX -> receive buffer (see below)
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
        AH = FEh if dequeued message is a CB message
SeeAlso: AH=04h

Format of receive buffer:
Offset    Size    Description
 00h 12 BYTEs    sending node's ID
 0Ch    WORD    length of message
 0Eh  N BYTEs    message (maximum 1024 bytes)
----------6F07-------------------------------
INT 6F - 10-NET - LOCK HANDLE
    AH = 07h
    BX = file handle
    CX:DX = starting offset in file
    SI = record length
Return: CF set on error
        AX = error code (see also AH=00h)
        0002h file not found
    CF clear if successful
SeeAlso: AH=08h,INT 21/AH=5Ch
----------6F08-------------------------------
INT 6F - 10-NET - UNLOCK HANDLE
    AH = 08h
    BX = file handle
    AL = mode
        00h unlock all
        01h unlock record at CX:DX
Return: CF set on error
        AX = error code (see also AH=00h)
        0002h file not found
    CF clear if successful
SeeAlso: AH=07h,INT 21/AH=5Ch
----------6F09-------------------------------
INT 6F - 10-NET - SUBMIT
    AH = 09h
    DS:BX -> submit record (see below)

Format of submit record:
Offset    Size    Description
 00h 12 BYTEs    destination node ID (must be logged in)
 0Ch    WORD    length+2 of following 'command line' text
 0Eh  N BYTEs    command line text (<=100 bytes), system adds CR
----------6F0A-------------------------------
INT 6F - 10-NET - CHAT
    AH = 0Ah
    DS:BX -> control parameters (see below)
    DS:DX -> chat message (see below)

Format of control parameters:
Offset    Size    Description
 00h  8 BYTEs    sender ID, defaults to node's userID if nulls
 08h  8 BYTEs    destination user ID, 'EVERYONE' may be used
 10h 12 BYTEs    destination node ID

Format of chat message:
Offset    Size    Description
 00h    WORD    length+2 of following text
 02h  N BYTEs    text, max 101 bytes
----------6F0B-------------------------------
INT 6F - 10-NET - LOCK SEMAPHORE, RETURN IMMEDIATELY
    AH = 0Bh
    AL = drive number or 0
    ES:SI = Ethernet address or 0
    DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status
        00h successful
        01h semaphore currently locked
        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 in this CPU
Note:    same as INT 60/AH=12h
SeeAlso: AH=0Ch,INT 60/AH=12h
----------6F0C-------------------------------
INT 6F - 10-NET - UNLOCK SEMAPHORE
    AH = 0Ch
    AL = drive number or 0
    ES:SI = Ethernet address or 0
    DS:BX -> 31-byte ASCIZ semaphore name
Return: AL = status (see also AH=0Bh)
        01h semaphore not locked
Note:    same as INT 60/AH=13h
SeeAlso: AH=0Bh,INT 60/AH=13h
----------6F0D-------------------------------
INT 6F - 10-NET - WHO
    AH = 0Dh
    AL = type code
        01h return superstations only
        02h return non-superstations only
        otherwise return all
    CX = length of data
    DS:DX -> array of records to be filled (see below)
Return: CL = number of records returned (responding stations)

Format of station record:
Offset    Size    Description
 00h 12 BYTEs    node ID
 0Ch    BYTE    flags
        bit 1 = workstation
            2 = superstation
            3 = xgate
            4 = active gate
---if AL = 01h---
 0Dh    BYTE    version number
    WORD    level number of 10Net software in responding node
---if AL = 02h---
 0Dh  8 BYTEs    user ID
 15h    BYTE    version number
 16h    WORD    level number
----------6F0E-------------------------------
INT 6F - 10-NET - SPOOL/PRINT
    AH = 0Eh
    DS:DX -> spool/print record (see below)
Return: CF set on error
        AX = error code (see also AH=00h)
        FF17h device not mounted
        FF18h already spooling to named device
    CF clear if successful

Format of Spool/Print record:
Offset    Size    Description
 00h    WORD    operation code
           00h initiate spool
           01h abort print
           02h close spool
           03h delete spool
           04h print
           05h get report info
           06h set chat template
           07h queue
           08h return queue
           09h queue non-spooled file for printing
 02h 11 BYTEs    file name in FCB format
---if operation code = 00h or 06h---
 0Dh    BYTE    notification
        bit 7: queue to top
        bit 6: do ID page
        bit 5: no form feed
        bit 4: reserved
        bit 3: explicity queuing only
        bit 2: notify at print completion
        bit 1: notify server operator/reply
        bit 0: notify at print start
 0Eh    BYTE    days to keep (FFh=forever)
 0Fh    BYTE    bits 0,1: device (1=LPT1)
        bits 4-7: remote drive to store spool file (1=A,...)
 10h    WORD    length of following data area
 12h  N BYTEs    up to 64 bytes of description
---if operation code = 03h---
 0Dh  8 BYTEs    user ID to associate with filename
---if operation code = 04h---
 0Dh    WORD    block number
 0Fh  8 BYTEs    user ID to associate with filename
---if operation code = 05h---
 0Dh    BYTE    RRN to start retrieve
 0Eh    BYTE    bits 0,1: local print device (LPTx)
        bit 3: if set, return entries for all users
 0Fh    WORD    length of following area
 11h  N BYTEs    up to 1500 bytes to receive $SCNTL records returned
---if operation code = 07h---
 0Dh    BYTE    queue number
 0Eh    BYTE    bits 0,1: local print device (LPTx)
 0Fh    WORD    number of bytes of test print to be done
 11h    BYTE    code: 01h print device
              02h test print count
              03h prn
---if operation code = 08h---
 0Dh    BYTE    queue location or $SCNTL location to start access
            returns next item for access:
                00h-7Fh queued items
                80h-FEh non-queued, non-printed items
                FFh    no more items
 0Eh    WORD    unused
 10h    WORD    length of following area
 12h  N BYTEs    up to 64 bytes to receive $SCNTL records
---if operation code = 09h---
 0Dh  3 BYTEs    unused
 10h  N BYTEs    path to non-spooled file to be queued for printing

Format of $SCNTL record:
Offset    Size    Description
 00h  8 BYTEs    user ID
 08h 11 BYTEs    filename in FCB format
 13h  6 BYTEs    node ID
 19h  3 BYTEs    creation date
 1Ch    BYTE    flags
        bit 7: queue to top
            6: do ID page
            5: no form feed at end
            4: reserved
            3: explicit queueing only
            2: notify at completion
            1: notify server operator/reply
            0: notify at start
 1Dh    BYTE    retention time in days
 1Eh    BYTE    printing device (LPTx)
 1Fh  3 BYTEs    date last printed (0 = never)
 22h    BYTE    device containing spoolfile
 23h    WORD    bytes to print for test print
 25h    WORD    block number to start print
 27h    BYTE    reserved
----------6F10-------------------------------
INT 6F - 10-NET - ATTACH/DETACH PRINTER
    AH = 10h
    AL = subfunction
        00h initiate spooling if LPT1 is mounted
        01h terminate spooling if LPT1 is mounted
SeeAlso: INT 21/AX=5D08h
----------6F11-------------------------------
INT 6F - 10-NET - LOCK FCB
    AH = 11h
    AL = mode
        01h sequential
        02h random
        03h random block
        CX = number of records
    DS:DX -> FCB (see INT 21/AH=0Fh)
Return: CF set on error
        AX = error code (see also AH=00h)
        0002h file not found
    CF clear if successful
SeeAlso: AH=12h
----------6F12-------------------------------
INT 6F - 10-NET - UNLOCK FCB
    AH = 12h
    AL = mode
        00h sequential
        01h random
        02h random block
        CX = number of records
    DS:DX -> FCB (see INT 21/AH=0Fh)
Return: CF set on error
        AX = error code (see also AH=00h)
        0002h file not found
    CF clear if successful
SeeAlso: AH=11h
----------6F13-------------------------------
INT 6F - 10-NET v3.3 - GET REMOTE CONFIGURATION TABLE ADDRESS
    AH = 13h
    DS:DX -> node ID, 12 bytes blank-padded
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
        ES:BX = configuration table address on given machine
SeeAlso: AH=03h
----------6F14-------------------------------
INT 6F - 10-NET v3.3 - GET REMOTE MEMORY
    AH = 14h
    BX:SI = address of remote memory
    CX = length (<=1024 bytes)
    DS:DX -> node ID, 12 bytes blank-padded
    DS:DI -> area to receive remote memory image
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
        CX = amount of memory copied to DS:SI
----------6F1501-----------------------------
INT 6F - 10-NET v3.3 - GET SHARED DEVICE ENTRY
    AX = 1501h
    BX = zero-based index
    DS:SI -> node ID, 12 bytes blank-padded
    ES:DI -> 85-byte buffer for shared device table entry (see below)
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
        ES:DI buffer contains shared device table entry of BXth device:
SeeAlso: AX=1502h,AX=1503h

Format of shared device table entry:
Offset    Size    Description
 00h  8 BYTEs    device
 08h  8 BYTEs    alias
 10h 64 BYTEs    path
 50h  8 BYTEs    password
 58h    BYTE    access
 59h  4 BYTEs    mask
----------6F1502-----------------------------
INT 6F - 10-NET v3.3 - SET SHARED DEVICE ENTRY
    AX = 1502h
    DS:SI -> node ID, 12 bytes blank-padded
    ES:DI -> valid shared device table entry
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
SeeAlso: AX=1501h,AX=1503h
----------6F1503-----------------------------
INT 6F - 10-NET v3.3 - DELETE SHARED DEVICE ENTRY
    AX = 1503h
    BX = zero-based index
    DS:SI -> node ID, 12 bytes blank-padded
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
SeeAlso: AX=1501h,AX=1502h
----------6F17-------------------------------
INT 6F - 10-NET v3.3 - MOUNT
    AH = 17h
    AL = local drive number (0=A:)
    BL = remote drive letter or '1'..'3' for LPTn or '4' or '5' for COMx
    DS:DX -> node ID, 12 bytes blank-padded
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
SeeAlso: AH=18h
----------6F18-------------------------------
INT 6F - 10-NET v3.3 - UNMOUNT
    AH = 18h
    AL = local drive number (0=A:)
    BL = type
        00h        disk
        01h-03h LPTn
        04h,05h COMx
Return: CF set on error
        AX = error code (see AH=00h)
    CF clear if successful
SeeAlso: AH=17h
----------70---------------------------------
INT 70 - IRQ8 - CMOS REAL-TIME CLOCK
Notes:    this interrupt is called when the real-time clock chip generates an
      alarm or periodic interrupt, among others.  The periodic interrupt
      occurs 1024 times per second, although many BIOSes turn it off in
      the INT 70h handler unless in an event wait (see INT 15/AH=83h or
      INT 15/AH=86h).
    may be masked by setting bit 0 on I/O port A1h
SeeAlso: INT 08,INT 15/AH=01h"Amstrad",INT 15/AH=83h,INT 15/AH=86h
SeeAlso: INT 1A/AH=02h,INT 58
----------70---------------------------------
INT 70 - "Stupid" virus - ???
SeeAlso: INT 6B"virus",INT E0"virus"
----------71---------------------------------
INT 71 - IRQ9 - REDIRECTED TO INT 0A BY BIOS
Notes:    may be masked by setting bit 1 on I/O port A1h
    the default BIOS handler invokes INT 0A for compatibility, since the
      pin for IRQ2 on the PC expansion bus became the pin for IRQ9 on the
      AT expansion bus.
    under DESQview, only the INT 15h vector and BASIC segment address (the
      word at 0000h:0510h) may be assumed to be valid for the handler's
      process
SeeAlso: INT 0A,INT 59
----------72---------------------------------
INT 72 - IRQ10 - RESERVED
Note:    may be masked by setting bit 2 on I/O port A1h
SeeAlso: INT 5A
----------73---------------------------------
INT 73 - IRQ11 - RESERVED
Note:    may be masked by setting bit 3 on I/O port A1h
SeeAlso: INT 5B
----------74---------------------------------
INT 74 - IRQ12 - POINTING DEVICE (PS)
Notes:    may be masked by setting bit 4 on I/O port A1h
    under DESQview, only the INT 15h vector and BASIC segment address (the
      word at 0000h:0510h) may be assumed to be valid for the handler's
      process
SeeAlso: INT 33,INT 5C
----------75---------------------------------
INT 75 - IRQ13 - MATH COPROCESSOR EXCEPTION (AT and up)
   redirected to INT 02 by the BIOS, for compatibility with the PC
Notes:    may be masked by setting bit 5 on I/O port A1h
    not all clones wire the coprocessor to generate this IRQ; some systems
      generate an NMI (see INT 02) or assert the -ERROR pin on the CPU
      (see INT 10"COPROCESSOR")
    under DESQview, only the INT 15h vector and BASIC segment address (the
      word at 0000h:0510h) may be assumed to be valid for the handler's
      process
SeeAlso: INT 10"COPROCESSOR",INT 5D
----------76---------------------------------
INT 76 - IRQ14 - HARD DISK CONTROLLER (AT and later)
Note:    may be masked by setting bit 6 on I/O port A1h
SeeAlso: INT 0E"IRQ6",INT 5E
----------77---------------------------------
INT 77 - IRQ15 - RESERVED (AT,PS)
Note:    may be masked by setting bit 7 on I/O port A1h
SeeAlso: INT 5F
----------77---------------------------------
INT 77 - IRQ15 - POWER CONSERVATION (Compaq SLT/286)
Note:    may be masked by setting bit 7 on I/O port A1h
SeeAlso: INT 15/AX=4600h,INT 5F
----------7800-------------------------------
INT 78 - TARGA.DEV - CMC International SCSI device driver - SET I/O PORT
    AH = 00h
    DX = interface board I/O port
Return:    CF set on error
        AL = error code
        00h illegal command given to SCSI code
        01h invalid I/O port specified (must be from 100H to 3F8H, and
            must be on an 8-port boundary)
        02h invalid DMA channel specified (must be from 1 to 3)
        03h invalid SCSI board number specified (must be from 0 to 7)
        04h error from data register test during self-test
        05h SCSI input signals not all 0 when SCSI RST activated
        06h SCSI input signals not all 0 before selecting a SCSI device
        07h BSY signal is active; SCSI bus is busy
        08h SCSI board not selected, BSY signal did not come on in
            response to raising SEL
        09h time-out waiting for status state, signifying end of DMA
            transfer
Note:    if this routine is not called, the port is the driver's default
      (usually 0280h or 0300h)
    an installation check is performed by TARGA.DEV upon initialization
      by checking for the string "SCSI" at offset 03h into the interrupt
      handler
SeeAlso: AH=01h,AH=02h
----------7801-------------------------------
INT 78 - TARGA.DEV - GET I/O PORT
    AH = 01h
Return: DX = current interface board I/O port
SeeAlso: AH=00h,AH=03h"TARGA"
----------7802-------------------------------
INT 78 - TARGA.DEV - SET DMA CHANNEL
    AH = 02h
    AL = interface board DMA channel
Return: CF set on error
    AL = error code (see AH=00h)
Note:    if this routine is not called, the DMA channel is the driver's default
      (usually 3)
SeeAlso: AH=00h,AH=03h"TARGA"
----------7803-------------------------------
INT 78 - TARGA.DEV - GET DMA CHANNEL
    AH = 03h
Return: AL = current interface board DMA channel
SeeAlso: AH=01h,AH=02h
----------7803-------------------------------
INT 78 - UofSalford DBOS DOS extender - SWITCH TO PROTECTED MODE
    AH = 03h
    ???
Return: ???
Note:    DBOS supports functions 00h through 50h
SeeAlso: AH=1Eh"DBOS",AH=22h"DBOS"
----------7804-------------------------------
INT 78 - TARGA.DEV - SET SCSI DEVICE NUMBER
    AH = 04h
    AL = SCSI device number
Return: CF set on error
    AL = error code (see AH=00h)
Note:    if this routine is not called, the device number used is the driver's
      default (usually 0)
SeeAlso: AH=02h,AH=05h
----------7805-------------------------------
INT 78 - TARGA.DEV - GET SCSI DEVICE NUMBER
    AH = 05h
Return: AL = current SCSI device number
SeeAlso: AH=03h"TARGA",AH=04h
----------7806-------------------------------
INT 78 - TARGA.DEV - SET/CLEAR EARLY RETURN MODE
    AH = 06h
    AL = 00h clear early return mode
       = 01h set early return mode
Note:    if early return mode is set then SCSI will return with no errors
      when the last DMA transfer is started in a call with AH=13h or AH=14h
    if this routine is not called, early return mode is cleared
SeeAlso: AH=13h,AH=14h,AH=15h
----------7808-------------------------------
INT 78 - TARGA.DEV - INTERFACE BOARD SELF-TEST
    AH = 08h
Return: CF set on error
    AL = error code (see AH=00h)
Note:    the SCSI bus is also reset
SeeAlso: AH=09h
----------7809-------------------------------
INT 78 - TARGA.DEV - RESET SCSI BUS
    AH = 09h
Return: AL = error code if carry set (see AH=00h)
SeeAlso: AH=08h
----------7810-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND
    AH = 10h
    DS:SI -> command bytes
Return: AH = SCSI status byte
    CF clear if successful
        AL = SCSI message byte
    CF set on error
        AL = error code (see AH=00h)
SeeAlso: AH=11h

Format of SCSI Command:
Offset    Size    Description
 00h    BYTE    length of command
 01h    ???    command bytes
----------7811-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND, RECEIVE DATA (PROGRAMMED I/O)
    AH = 11h
    DS:SI -> command bytes
    ES:BX -> data storage area
    CX = number of data bytes to transfer
Return: AH = SCSI status byte
    CF clear if successful
        AL = SCSI message byte
    CF set on error
        AL = error code (see AH=00h)
Note:    this command receives data internally one byte at a time
SeeAlso: AH=10h,AH=13h

Format of SCSI Command:
Offset    Size    Description
 00h    BYTE    length of command
 01h    ???    command bytes
----------7812-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND AND DATA (PROGRAMMED I/O)
    AH = 12h
    DS:SI -> command bytes
    ES:BX -> data storage area
    CX = number of data bytes to transfer
Return: AH = SCSI status byte
    CF clear if successful
        AL = SCSI message byte
    CF set on error
        AL = error code (see AH=00h)
Note:    this command sends data internally one byte at a time
SeeAlso: AH=14h

Format of SCSI Command:
Offset    Size    Description
 00h    BYTE    length of command
 01h    ???    command bytes
----------7813-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND, RECEIVE DATA (DMA)
    AH = 13h
    DS:SI -> command bytes
    ES:BX -> data storage area
    DX:CX = number of data bytes to transfer
Return: AH = SCSI status byte (if early return mode is clear)
    CF clear if successful
        AL = SCSI message byte (if early return mode is clear)
    CF set on error
        AL = error code (see AH=00h)
Note:    this command receives data using DMA
SeeAlso: AH=11h,AH=12h

Format of SCSI Command:
Offset    Size    Description
 00h    BYTE    length of command
 01h    ???    command bytes
----------7814-------------------------------
INT 78 - TARGA.DEV - SEND SCSI COMMAND AND DATA (DMA)
    AH = 14h
    DS:SI -> command bytes
    ES:BX -> data storage area
    DX:CX = number of data bytes to transfer
Return: AH = SCSI status byte (if early return mode is clear)
    CF clear if successful
        AL = SCSI message byte (if early return mode is clear)
    CF set on error
        AL = error code (see AH=00h)
Note:    this command sends data using DMA
SeeAlso: AH=12h,AH=13h

Format of SCSI Command:
Offset    Size    Description
 00h    BYTE    length of command
 01h    ???    command bytes
----------7815-------------------------------
INT 78 - TARGA.DEV - FINISH DATA TRANSFER (DMA)
    AH = 15h
Return: AH = SCSI status byte
    CF clear if successful
        AL = SCSI message byte
    CF set on error
        AL = error code (see AH=00h)
Note:    if AH=06h was previously called to set the early return mode, this
      function finishes a command AH=13h or AH=14h which returned before
      the last DMA transfer was finished
SeeAlso: AH=06h,AH=13h,AH=14h
----------781E-------------------------------
INT 78 - UofSalford DBOS DOS extender - SET REAL-MODE MEMORY SIZE
    AH = 1Eh
    ???
Return: ???
Notes:    specifies how much real-mode memory to leave free when running FTN77
      programs
    DBOS supports functions 00h through 50h
SeeAlso: AH=03h"DBOS",AH=22h"DBOS"
----------7822-------------------------------
INT 78 - UofSalford DBOS DOS extender - UNINSTALL
    AH = 22h
    ???
Return: ???
Note:    DBOS supports functions 00h through 50h
SeeAlso: AH=03h"DBOS",AH=1Eh"DBOS"
----------79---------------------------------
INT 79 - AVATAR.SYS - FAST GET KEYSTROKE
Return: CF set if no keystroke available
        AX = FFFFh
    CF clear if key pressed
        AX = keystroke
Notes:    if a keystroke is available, it is removed from the keyboard buffer
      before being returned
    AVATAR.SYS is a CON driver by George Adam Stanislav which interprets
      AVATAR command codes just as ANSI.SYS interprets ANSI commands
SeeAlso: INT 29
----------7A---------------------------------
INT 7A - Topware Network Operating System - ???
    AL = ???
    ???
Return: ???
----------7A---------------------------------
INT 7A - AutoCAD Device Interface
    ???
----------7A---------------------------------
INT 7A - Novell NetWare - LOW-LEVEL API - Notes
Note:    this interrupt is used for IPX/SPX access in NetWare versions through
      2.0a; in later versions, you should use INT 2F/AX=7A00h to get an
      entry point.    For both INT 7A and the FAR entry point, BX contains
      the function number; IPX is sometimes called internally with BX bit
      15 set.
SeeAlso: INT 2F/AX=7A00h,INT 64"Novell"
----------7A----BX0000-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - OPEN SOCKET
    BX = 0000h
    AL = mode
        00h open until close or terminate
        FFh open until close
    DX = socket number (high byte in DL)
        0000h dynamic allocation
        else  socket to open
Return: AL = return code
        00h success
        DX = socket number
        FEh socket table full
        FFh socket already open
SeeAlso: BX=0001h
----------7A----BX0001-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - CLOSE SOCKET
    BX = 0001h
    DX = socket (high byte in DL)
SeeAlso: BX=0000h
----------7A----BX0002-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - GET LOCAL TARGET
    BX = 0002h
    ES:SI -> target internetwork address
    ES:DI -> 6-byte buffer for local target
Return: AL = return code
        00h success
           CX = expected one-way transfer time (clock ticks)
           ES:DI -> local target
        FAh unsuccessful
Note:    The internetwork address consists of a 4-byte network address followed
      by a 6-byte node address.  The local target is only a 6-byte node
      address.  If the target is in the same network, the local target is
      just the node address of target; otherwise, the local target is the
      node address of the bridge that leads to the target.
SeeAlso: BX=0009h
----------7A----BX0003-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - SEND PACKET
    BX = 0003h
    ES:SI -> Event Control Block (see below)
SeeAlso: BX=0004h,BX=000Fh

Format of Event Control Block:
Offset    Size    Description
 00h    DWORD    Link
 04h    DWORD    -> Event Service Routine (00000000h if none)
 08h    BYTE    in use flag
 09h    BYTE    completion code
 0Ah    WORD    socket (high byte first [big-endian])
 0Ch  4 BYTES    IPX workspace
 10h 12 BYTES    driver workspace
 1Ch  6 BYTES    immediate local node address
 22h    WORD    fragment count
 26h    var    fragment descriptors
        Offset    Size    Description
         00h    DWORD    -> fragment data
         04h    WORD    size of fragment in bytes.
Notes:    ESR is a far procedure that is called when the ECB has been handled.
      On call, the in use flag is zero if the ECB has been handled,
      non-zero otherwise. If the flag is zero, the completion code holds
      the result of the event:
        00h success
        F9h event should not be cancelled
        FCh cancelled
        FDh malformed packet
        FEh packet undeliverable
        FFh physical error
    the first fragment should start with an IPX header
    all fragments are concatenated and sent in one piece
    node address FF FF FF FF FF FF broadcasts to all nodes

Event Service Routine called with:
    AL = caller's identity (00h = AES, FFh = IPX)
    ES:SI -> event control block
    interrupts disabled

Format of IPX header:
Offset    Size    Description
 00h    WORD    checksum (high byte first [big-endian])
 02h    WORD    length in bytes (high byte first) of total packet
 04h    BYTE    transport control
 05h    BYTE    packet type
        00h unknown packet type
        01h routing information packet
        02h echo packet
        03h error packet
        04h packet exchange packet (always use this one)
        05h SPX packet
        11h (used internally)
 06h 10 BYTES    destination internetwork address
 10h    WORD    destination socket (high byte first)
 12h 10 BYTES    source internetwork address
 1Ch    WORD    source socket
----------7A----BX0004-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - LISTEN FOR PACKET
    BX = 0004h
    ES:SI -> Event Control Block (see BX=0003h)
SeeAlso: BX=0003h
----------7A----BX0005-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - SCHEDULE IPX EVENT
    BX = 0005h
    AX = delay time
    ES:SI -> Event Control Block (see BX=0003h)
SeeAlso: BX=0006h,BX=0007h
----------7A----BX0006-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - CANCEL EVENT
    BX = 0006h
    ES:SI -> Event Control Block (see BX=0003h)
Return: AL = return code
        00h success
        F9h event in use
        FFh unsuccessful, event not in use
SeeAlso: BX=0005h
----------7A----BX0007-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - SCHEDULE SPECIAL EVENT
    BX = 0007h
    AX = delay time
    ES:SI -> Event Control Block (see BX=0003h)
SeeAlso: BX=0006h
----------7A----BX0008-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - GET INTERVAL MARKER
    BX = 0008h
Return: AX = interval marker in clock ticks
----------7A----BX0009-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - GET INTERNETWORK ADDRESS
    BX = 0009h
    ES:SI -> 10-byte buffer
Return: ES:SI -> own internetwork address
SeeAlso: BX=0002h,BX=000Bh
----------7A----BX000A-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - RELINQUISH CONTROL
    BX = 000Ah
Note:    this call permits the IPX driver to do some work
----------7A----BX000B-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - DISCONNECT FROM TARGET
    BX = 000Bh
    ES:SI -> internetwork address
Note:    only use in point-to-point networks
SeeAlso: BX=0002h,BX=0009h
----------7A----BX000C-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 000Ch
    ???
Return: ???
----------7A----BX000D-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 000Dh
    ???
Return: ???
----------7A----BX000E-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 000Eh
    ???
Return: ???
----------7A----BX000F-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL - SEND PACKET
    BX = 000Fh
    ES:SI -> Event Control Block (see BX=0003h)
Note:    similar to function 0003h, but apparently does not allow multiple
      fragments
SeeAlso: BX=0003h
----------7A----BX0010-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - SPX INSTALLATION CHECK
    BX = 0010h
    AL = 00h
Return: AL = FFh if SPX loaded
SeeAlso: BX=0015h
----------7A----BX0011-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - ESTABLISH SPX CONNECTION
    BX = 0011h
    AL = retry count
    AH = watchdog flag
    ES:SI -> Event Control Block (see BX=0003h)
Return: DX = assigned connection number
Notes:    there should always be at least two SPX ECB's listening to a socket, so
      that NetWare can perform its internal packet exchanges
    The first fragment should start with a SPX header.  Fill in all
      destination addresses.
SeeAlso: BX=0000h,BX=0012h,BX=0013h,BX=0014h

Format of SPX header:
Offset    Size    Description
 00h    WORD    checksum (high byte first [big-endian])
 02h    WORD    length in bytes of total packet (high byte first)
 04h    BYTE    transport control
 05h    BYTE    packet type
 06h 10 BYTEs    destination internet address
 10h    WORD    destination socket (high byte first)
 12h 10 BYTEs    source internet address
 1Ch    WORD    source socket (high byte first)
 1Eh    BYTE    connection control
 1Fh    BYTE    datastreamtype
 20h    WORD    source connection ID
 22h    WORD    destination connection ID
 24h    WORD    sequence number
 26h    WORD    acknowledge number
 28h    WORD    allocation number
----------7A----BX0012-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - LISTEN FOR SPX CONNECTION
    BX = 0012h
    AL = retry count
    AH = watchdog flag
    ES:SI -> Event Control Block (see BX=0003h)
Notes:    there should always be at least two SPX ECB's listening to a socket, so
      that NetWare can perform its internal packet exchanges
SeeAlso: BX=0011h,BX=0013h,BX=0014h
----------7A----BX0013-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - TERMINATE SPX CONNECTION
    BX = 0013h
    DX = connection ID to terminate
    ES:SI -> Event Control Block (see BX=0003h)
SeeAlso: BX=0011h,BX=0012h,BX=0014h
----------7A----BX0014-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - ABORT SPX CONNECTION
    BX = 0014h
    DX = connection ID to terminate
Note:    this function does not tell the other side that the connection has been
      terminated
SeeAlso: BX=0011h,BX=0013h
----------7A----BX0015-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - GET SPX STATUS
    BX = 0015h
    DX = connection ID
    ES:SI -> status buffer (see below)
Return: AL = return code
        00h connection still valid
        ES:SI -> status buffer filled
SeeAlso: BX=0010h

Format of status buffer:
Offset    Size    Description
 00h    BYTE    status
 01h    BYTE    flag
 02h    WORD    source connection (high byte first [big-endian])
 04h    WORD    destination connection (high byte first)
 06h    WORD    sequence number (high byte first)
 08h    WORD    acknowledge number (high byte first)
 0Ah    WORD    allocation number (high byte first)
 0Ch    WORD    remote acknowledge number (high byte first)
 0Eh    WORD    remote allocation number (high byte first)
 10h    WORD    connection socket (high byte first)
 12h  6 BYTEs    immediate node address
 18h 10 BYTEs    destination internet address
 22h    WORD    retransmit count (high byte first)
 24h    WORD    estimated roundtrip delay
 26h    WORD    retransmitted packets
 28h    WORD    suppressed packets
----------7A----BX0016-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - SEND SPX PACKET
    BX = 0016h
    DX = connection ID
    ES:SI -> Event Control Block (see BX=0003h)
Note:    CX may need to be 0001h ???
SeeAlso: BX=0011h,BX=0017h
----------7A----BX0017-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - LISTEN FOR SPX PACKET
    BX = 0017h
    DX = connection ID
    ES:SI -> Event Control Block (see BX=0003h)
Note:    CX may need to be 0001h ???
SeeAlso: BX=0011h,BX=0016h
----------7A----BX0018-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 0018h
    ???
Return: ???
----------7A----BX0019-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 0019h
    ???
Return: ???
----------7A----BX001A-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 001Ah
    ???
Return: ???
----------7A----BX001B-----------------------
INT 7A - Novell NetWare Low-Level API (IPX) Driver - INTERNAL
    BX = 001Bh
    ???
Return: ???
----------7A04-------------------------------
INT 7A - IBM 3270 Workstation Program API - CREATE A QUEUE
    AH = 04h
    ???
Return: ???
SeeAlso: AH=06h
----------7A06-------------------------------
INT 7A - IBM 3270 Workstation Program API - DELETE A QUEUE
    AH = 06h
    ???
Return: ???
SeeAlso: AH=04h
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - SESSION SERVICES
    AH = 09h
    BX = 8020h (synchronous request)
    CX = 0000h
    DX = ID of session manager (SESSMGR)
    AL = service
        01h get session ID
        02h get session info
        04h dettach from session
        05h attach to session
        06h get list of windows available
        07h get environment of window
        08h get 'PIF' (program information file) info
        0Ah get base window ID
        0Bh get cursor info
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - KEYBOARD SERVICES
    AH = 09h
    BX = 8020h (synchronous request)
    CX = 0000h
    DX = ID of keyboard manager
    AL = service
        01h connect to keyboard
        02h disconnect from keyboard
        03h read from keyboard
        04h send keystroke to session
        05h disable input
        06h enable input
        07h update status code
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - WINDOW SERVICES
    AH = 09h
    BX = 8020h (synchronous request)
    CX = 00FFh
    DX = ID of window service controller (WSCTRL)
    AL = service
        01h connect to WS control
        02h disconnect from WS control
        03h add a window
        04h change window's position on screen
        05h change window's size
        06h change window's color
        07h change window's position in the presentation space
        08h hide/unhide toggle
        09h enlarge/reduce toggle
        0Ah change screen background color
        0Bh get window's position on screen
        0Ch get window's size
        0Dh get window's color
        0Eh get window's position in the presentation space
        0Fh determine whether hidden
        10h determine whether enlarged
        11h get background color
        12h get window names
        13h delete all windows from profile
        14h pick active window
        15h redraw screen
        16h redraw window
        17h delete a window from profile
        18h get active window
        19h get active screen
        1Ah get window data
        1Bh change window data
        1Ch select active screen
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - PRESENTATION SPACE SERVICES
    AH = 09h
    BX = 8020h
    CX = 00FFh
    DX = ID of PCPSM
    AL = service
        01h define presentation space
        02h delete presentation space
        03h display presentation space
        04h position cursor in presentation space
        05h change default presentation space
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - 3270 EMULATION
    AH = 09h
    BX = 8020h
    CX = 00FFh
    DX = ID of 3270EML
    AL = service
        01h connect
        02h disconnect
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - OPERATOR INFORMATION AREA
    AH = 09h
    BX = 8020h
    CX = 00FFh
    DX = ID of OIAM
    AL = service
        01h read Operator Information Area
        02h read OIA subset
    ES:DI -> control block
Return: ???
Note: the OIA is the 25th line on the Host session
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - TRANSLATE DATA
    AH = 09h
    BX = 8020h
    CX = 00FFh
    DX = ID of XLATE
    AL = service
        01h translate from host characters to ASCII and vice versa
        (determined by control block byte 11)
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - COPY SERVICE
    AH = 09h
    BX = 8020h
    CX = 00FFh
    DX = ID of copy service
    AL = service
        01h copy string from one presentation space to another
        02h copy block from one presentation space to another
        03h connect to PC session for copy
        04h disconnect PC session from copy
    ES:DI -> control block
Return: ???
----------7A09--BX8020-----------------------
INT 7A - IBM 3270 Workstation Program API - Multi-DOS
    AH = 09h
    BX = 8020h
    CX = 00FFh
    ES:DI -> control block
    DX = ID of INDJQRY
        get environment size
       = ID of INDJASY
        request DOS functions from workstation
       = ID of MEMORY
        AL = function
            01h allocate memory
            02h deallocate memory
            03h modify allocated size
Return: ???
----------7A09-------------------------------
INT 7A - IBM 3270 Workstation Program API - HOST SERVICES
    AH = 09h
    BX = request type (4000h async, 8028h synchronous)
    CX = 0000h
    DX = ID of MFIC
    AL = service
       01h connect to host
       02h disconnect from host
       03h read DFT structured data from host
       04h write DFT structured data to host
       05h create a host buffer
    ES:DI -> control block
----------7A13-------------------------------
INT 7A - IBM 3270 Workstation Program API - GET DATA FROM A QUEUE
    AH = 13h
    ???
Return: ???
----------7A81-------------------------------
INT 7A - IBM 3270 Workstation Program API - RESOLVE A GATE NAME
    AH = 81h
    ES:DI -> 8-char blank-padded gate name
        "SESSMGR ", "KEYBOARD", "WSCTRL     ", "MFIC    ", "PCPSM     ",
        "3270EML ", "COPY    ", "XLATE     ", "OIAM    ", "MEMORY     ",
        "INDJQRY ", or "INDJASY "
Return: DX = gate ID
----------7A83-------------------------------
INT 7A - IBM 3270 Workstation Program API - GET COMPLETION RESULTS
    AH = 83h
    ???
Return: ???
----------7AFDCB-----------------------------
INT 7A - IBM Personal Communications/3270 - INSTALLATION CHECK
    AX = FDCBh
Return: DX:AX -> PCS/3270 signature block if loaded (see below)

Format of signature block:
Offset    Size    Description
 04h    WORD    PCS/3270 signature (5741h)
 06h    WORD    version (0501h = PCS/3270 v1.0)
----------7AFE01-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL SEND/RECEIVE FUNCTION
    AX = FE01h
    ???
Return: ???
SeeAlso: AX=FE02h
----------7AFE02-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL SEND/RECEIVE FUNCTION
    AX = FE02h
    ???
Return: ???
SeeAlso: AX=FE01h
----------7AFF01-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API INITIALIZATION
    AX = FF01h
    ES:DI -> API function handler routine
Return: CX = 1200h
SeeAlso: AX=FF02h,AX=FF03h
----------7AFF02-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API TERMINATION
    AX = FF02h
Return: CX = 1200h
SeeAlso: AX=FF01h
----------7AFF03-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL API INITIALIZATION
    AX = FF03h
    ES:DI -> send/receive function handler routine
Return: CX = 1200h
SeeAlso: AX=FF01h
----------7AFF04-----------------------------
INT 7A - IBM PC3270 EMUL PROG v3 - INTERNAL ???
    AX = FF04h
    ES:DI -> ???
Return: CX = 1200h
----------7B---------------------------------
INT 7B - Btrieve API
    DS:DX -> 38-byte parameter record (see below)
Return: return code field set
Note:    Btrieve sets low byte of vector to 33h; this serves as the installation
      check

Format of Btrieve parameter record:
Offset    Size    Description
 00h    DWORD    pointer to data buffer
 04h    WORD    data buffer length
 06h    DWORD    pointer to 90-byte record containing positioning info
        (should be same for all calls for same file)
 0Ah    DWORD    pointer to 38-byte FCB info buffer
        (should be same for all calls for same file)
 0Eh    WORD    function code (see below)
 10h    DWORD    pointer to file name/key buffer
 14h    BYTE    key length
 15h    BYTE    key number
 16h    DWORD    pointer to status code (see below)
 1Ah    WORD    interface code (version specific)

Values for function code:
 00h open
 01h close
 02h insert
 03h update
 04h delete
 05h get_equal
 06h get_next
 07h get_prev
 08h get_greater
 09h get_gr_eql
 0Ah get_less
 0Bh get_less_eq
 0Ch get_first
 0Dh get_last
 0Eh create
 0Fh stat
 10h extend
 11h set_dir: set directory information
 12h get_dir: get directory information
 13h begin_trans
 14h end_trans
 15h abort_trans
 16h get_pos: get record position number
 17h get_direct: get data by sending record position
 18h step_direct
 19h stop
 1Ah version
 1Bh unlock
 1Ch reset
 1Dh set owner
 1Eh clear owner
 1Fh create supplemental index
 20h drop supplemental index
 21h step first
 22h step last
 23h step next
 31h ???
 37h ???
 38h ???
 39h ???
 3Ah ???
 3Bh ???
 3Ch ???
 3Dh ???
 3Eh ???
 3Fh ???
 add 100 (64h) for a single-record wait lock (automatically released on next
        get)
 add 200 (C8h) for a single-record nowait lock (nowait lock returns error 54h
        or 55h if record already locked)
 add 300 (12Ch) for a multiple-record wait lock (not released until unlock
        called)
 add 400 (190h) for a multiple-record nowait lock (nowait lock returns error
        54h or 55h if record already locked)

Values for status code:
 00h successful
 01h invalid operation
 02h I/O error
 03h file not open
 04h key value not found
 05h duplicate key value
 06h invalid key number
 07h different key number
 08h invalid positioning
 09h end of file
 0Ah modifiable key value error
 0Bh invalid file name
 0Ch file not found
 0Dh extended file error
 0Eh pre-image open error
 0Fh pre-image I/O error
 10h expansion error
 11h close error
 12h disk full
 13h unrecoverable error
 14h record manager inactive
 15h key buffer too short
 16h data buffer length overrun
 17h position block length
 18h page size error
 19h create I/O error
 1Ah number of keys
 1Bh invalid key position
 1Ch invalid record length
 1Dh invalid key length
 1Eh not a Btrieve file
 1Fh file already extended
 20h extended I/O error
 22h invalid extension name
 23h directory error
 24h transaction error
 25h transaction is active
 26h transaction control file I/O error
 27h end/abort transaction error
 28h transaction max files
 29h operation not allowed
 2Ah incomplete accelerated access
 2Bh invalid record address
 2Ch null key path
 2Dh inconsistent key flags
 2Eh access to file denied
 2Fh maximum open files
 30h invalid alternate sequence definition
 31h key type error
 32h owner already set
 33h invalid owner
 34h error writing cache
 35h invalid interface
 36h variable page error
 37h autoincrement error
 38h incomplete index
 39h expanded memory error
 3Ah compression buffer too short
 3Bh file already exists
 50h conflict
 51h lock error
 52h lost position
 53h read outside transaction
 54h record in use
 55h file in use
 56h file table full
 57h handle table full
 58h incompatible open mode
 5Dh incompatible lock type
 5Eh permission error
----------7B---------------------------------
INT 7B - Eicon Access API (3270/5250 gateways)
----------7C---------------------------------
INT 7C - IBM REXX88PC command language
    ???
----------7D---------------------------------
INT 7D - [proposed] - ALTERNATE MULTIPLEX INTERRUPT
    AH = multiplex number
    AL = function
        00h usage check
            Return: AL = FFh if multiplex number in use
        01h installation check
            BX,CX,DX = 6-byte program identifier
        Return: AL = FFh if specified program installed
            ES:BX -> entry point (for bypassing interrupt chain),
                0000h:0000h if all API calls via INT 7D
            CX = version number (CH = major, CL = minor)
        other  application-dependent
Notes:    programs should not use fixed multiplex numbers; rather, a program
      should scan all multiplex numbers from 00h to FFh, remembering the
      first unused multiplex in case the program is not yet installed.
      If not previously installed, it should use that first free multiplex
      number.
    before invoking INT 7D, a program must make sure it is valid.  INT 7D
      is valid if either (1) it points at an IRET instruction or (2) the
      INT 7D handler is preceded by the ASCII signature "INT7D".  If
      neither case holds, the vector may be uninitialized and pointing
      at a random location; it should thus not be called, but may be
      hooked by the program (without chaining), using multiplex number 00h
    Please let me know the program identifier you use if you choose to
      follow this proposal.
SeeAlso: INT 2F
----------7E---------------------------------
INT 7E - RESERVED FOR DIP, Ltd. ROM LIBRARY
----------7F---------------------------------
INT 7F - IBM XGA - ???
----------7F---------------------------------
INT 7F - Halo88 - API
    BX = function
        64h arc
        65h bar
        66h box
        67h circle
        68h clr
        69h default hatch style
        6Ah default line style
        6Bh delhcur
        6Ch delln / deltcur
        6Dh ellipse
        6Eh fill
        6Fh flood
        70h flood2
        71h init graphics
        72h init hcur
        73h init marker
        74h init tcur
        75h inqarc
        76h inqbknd
        77h inqclr
        78h inqerr
        79h inqgcur
        7Ah inqhcur
        7Bh inqmarker
        7Dh inqtcur
        7Eh inqtext
        7Fh lnabs
        80h lnrel
        81h markerabs
        82h markerrel
        83h moveabs
        84h movehcurabs
        85h movehcurrel
        86h moverel
        87h movetcurabs
        88h movetcurrel
        89h movefrom
        8Ah moveto
        8Bh pie
        8Ch polylnabs
        8Dh polylnrel
        8Eh ptabs
        8Fh ptrel
        91h setasp
        92h set color
        93h set font
        94h set hatch style
        95h set line style
        97h settext
        98h set text color
        99h btext
        9Ah setseg
        9Bh display
        9Ch setscreen
        9Eh close graphics
        9Fh ftinit
        A0h ftlocate
        A1h ftext
        A5h set viewport
        A6h set window
        A7h set world
        AAh ftcolor
        ACh initlp
        ADh inqasp
        AEh inqdev
        AFh inqdisplay
        B0h inqft
        B1h inqftcolor
        B2h inqinterlace
        B3h inqlpa
        B4h inqlpg
        B5h inqmode
        B6h inqscreen
        B7h inqversion
        B8h roam
        B9h scroll
        BAh setieee
        BBh set interlace
        BCh shift
        BDh start graphics
        BEh vpan
        CBh gwrite
        CCh gread
        CDh setxor
        CEh rbox
        CFh rcir
        D0h rlnabs
        D1h rlnrel
        D2h delbox
        D3h delcir
        D5h setseg2
        DCh worldoff
        DDh mapwtod
        DEh mapdtow
        DFh mapwton
        E0h mapntow
        E1h mapdton
        E2h mapntod
        E3h inqworld
        E4h inqviewport
        E5h set line width
        E6h lnjoint
        E7h set locator
        E8h read locator
        E9h setdev
        EBh setstext
        ECh setstclr
        EDh setstang
        EEh stext
        EFh inqstext
        F0h setdegree
        F1h inqstsize
        F2h polyfabs
        F3h polyfrel
        F4h inqdrange
        F5h inqstang
        F6h orglocator
        F7h inqlocator
        F8h inqarea
        F9h setipal
        FAh setborder
        FBh inqcrange
        FEh setclip
        FFh fcir
           100h setcrange
           101h setdrange
           102h setlattr
           103h polycabs
           104h polycrel
           108h memcom
           109h memexp
           10Ah memmov
           10Eh movefx
           10Fh movetx
           110h inqrgb
           111h save image
           112h restore image
           113h setapal
           114h setxpal
           118h inqtsize
           12Eh gprint
           130h setprn
           131h setpattr
           133h setbattr
           135h pexpand
           136h ptnorm
           137h pfnorm
           13Bh inqprn
           13Ch lopen
           13Dh lclose
           13Eh lappend
           13Fh lrecord
           140h lswitch
           142h inqfun
           15Dh lsetup
           15Eh lrest
           15Fh lsave
    additional parameters on stack
Return: ???
Notes:    Halo88 is a suite of graphics routines
    according to Stuart Kemp, the code appears to make no provisions for
       chaining
----------7F---------------------------------
INT 7F - CONVERGENT TECHNOLOGIES ClusterShare CTOS ACCESS VECTOR
    AL = request ID
        01h "Request"/"RequestDirect"
        ES:BX -> pRq
        DX ignored
        04h "Wait"
        ES:BX -> ppMsgRet
        DX = exchange
        05h "AllocExch"
        ES:BX -> pExchRet
        06h "DeAllocExch"
        DX = exchange
        07h "Check"
        ES:BX -> ppMsgRet
        DX = exchange
    CX = 4354h ('CT')
Return: AX = status
        0000h successful
----------7F---------------------------------
INT 7F - Alloy 386/MultiWare (MW386), Novell-Type Network Executive (NTNX)
Notes:    the words at C800h:0000h and C800h:0002h will both be 584Eh if this
      multitasking system is present
    NTNX allows its API to be placed on a different interrupt than 7Fh at
      load time.  To determine the actual vector used, open the device
      "SPOOLER" with INT 21/AX=3D02h, place it in RAW mode with
      INT 21/AX=4400h and INT 21/AX=4401h, then read one byte which will
      be the actual interrupt number being used; the other interrupts may
      be found with INT 7F/AH=09h/CL=03h
----------7F---------------------------------
INT 7F - Alloy NetWare Support Kit (ANSK) v2.2+ - INSTALLATION CHECK
Note:    a program may determine that it is running on an ANSK Slave by checking
      the five bytes at F000h:0000h for the ASCIZ signature "ANSK"; this
      address is RAM, and should not be written.  However, the above check
      will not work on Slaves with <1MB RAM or those using the SLIM.SYS
      device driver
----------7F---------------------------------
INT 7F - Telebit ACS SERIAL I/O
        ES:SI-> parameter block
Return: CF set on error
        CF clear on success
Notes:  the signature "PDGATEWRKSTNIF" appears just prior to the interrupt
          handler; this serves as the installation check

Format of Telebit ACS parameter block:
Offset  Size    Description
 00h    BYTE    command
                    3Ch status
                    3Dh connect
                    3Eh disconnect
                    3Fh read
                    40h data/command write
                    41h clear receive buffer
                    42h get configuration
                    43h get receiver status
                    44h raw write
                    45h search servers
                    46h set transmit buffer size
 01h    BYTE    gateway number
 02h    BYTE    reserved
 03h    BYTE    port
 04h 17 BYTES   auxiliary buffer
 15h    BYTE    session
 16h    WORD    count of bytes passed to API
 18h    DWORD   buffer pointer passed to/from API
 1Ch    WORD    count of bytes passed from API
 1Eh    BYTE    return code (see below)

Values for return code:
 00h - success
 01h - invalid session
 05h - servername invalid
 06h - netware fileserver bindery is locked
 07h communication server not active
 08h general failure in netware fileserver
 09h not logged into a fileserver
 10h connection table full
 11h no response from communication server
 12h connection attempt terminated abnormally
 13h connection refused - no sessions available
 14h gw_no/port already in use
 15h invalid connection response
 16h port invalid
 17h incorrect version in server response
 18h gw_no/port combination not configured
 19h initialization has not been completed
 20h no more sockets are available
 21h no active poolname
 23h FATAL internal interface error
 24h registration of host workstation failed - name is already in used
 25h registration of host workstation failed - workstation name table full
 26h registration of host workstation failed - only one session may be
     registered for dial-in
 FFh telebit acs api is busy - retry later
----------7F00-------------------------------
INT 7F - Alloy NTNX, MW386 - SEMAPHORE LOCK AND WAIT
    AH = 00h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status
        00h successful
        01h invalid function
        02h semaphore already locked
        03h unable to lock semaphore
        04h semaphore space exhausted
        05h host/target PC did not respond (NTNX)
    AH = semaphore owner if status=02h
SeeAlso: AH=01h,AH=02h,AH=41h,INT 67/AH=00h
----------7F01-------------------------------
INT 7F - Alloy NTNX, MW386 - SEMAPHORE LOCK
    AH = 01h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see AH=00h)
    AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=02h,AH=41h
----------7F0104BX0000-----------------------
INT 7F - HLLAPI (IBM 3270 High-Level Language API)
    AX = 0104h (HLLAPI gate ID)
    BX = 0000h
    DS:SI -> parameter control block (see below)
Return: parameter control block updated

Format of parameter control block:
Offset    Size    Description
 00h  3 BYTEs    signature = 'PCB'
 03h    BYTE    function number (see below)
 04h    WORD    segment of control string
 06h    WORD    offset of control string
 08h    WORD    length of control string, unless explicit end-of-str char set
 0Ah    BYTE    unused
 0Bh    WORD    return code
 0Dh    WORD    maximum length of control string

Values for function number:
 00h    Query system (Attachmate implementation only)
 01h    Connect presentation space
 02h    Disconnect presentation space
 03h    Send string of keystrokes as if typed from keyboard
 04h    Wait ~60s, returns status of presentation space
 05h    Copy current presentation space into a user-defined buffer
 06h    Search presentation space for first occurrence of a specified string
 07h    Query cursor location in current presentation space
 08h    Copy part or all of current presentation space into user buffer
 09h    Set session parameters; parameters vary by vendor
 0Ah    Get info on sessions currently connected
 0Bh    Lock current presentation space
 0Ch    Unlock previously locked presentation space
 0Dh    Return copy of operator info area (OIA) of current presentation space
 0Eh    get attribute byte for given position in the current presentation space
 0Fh    copy string of characters to the current presentation space
 10h    workstation control functions
 11h    storage manager functions, intended primarily for BASIC applications
 12h    set delay period in half-second intervals
 14h    get info on level of workstation support used
 15h    reset session parameters to default values
 16h    get detailed info on the current session
 17h    start host notification to application on presentation sp or OIA update
 18h    check host update when host notification enabled
 19h    stop host notification
 1Eh    search field within current presentation space for string
 1Fh    get first positionof a selected field in the current presentation space
 20h    get length of specified field
 21h    copy string into a specified field
 22h    copy specified field into a user-defined buffer
 23h    create alternate presentation space (IBM only), don't use with BASIC
 24h    switch to alternate presentation space (IBM only), not with BASIC
 25h    display cursor in specified area (IBM only), don't use with BASIC
 26h    display alternate presentation space (IBM only), don't use with BASIC
 27h    delete alternate presentation space (IBM only), don't use with BASIC
 32h    start intercepting keystrokes to allow filtering
 33h    get keystrokes after turning on interception
 34h    notify operator when keystroke rejected by filter subroutine
 35h    stop intercepting keystrokes
 5Ah    send file
 5Bh    receive file
 5Ch    run a program
 5Dh    execute DOS command
 63h    change presentation space position to PC display row/col or vice versa
 FFh    Get info on DCA implementation

Session Parameters for function 09h:
 ATTRIB        return attributes in hex
 NOATTRIB    return attributes as blanks
 CONPHYS    make physical connection
 CONLOG        only make logical connection
 EAB        copy extended attribute bytes along with data
 NOEAB        copy data only
 ESC=n        set escape character to "n" (default '@')
 EOT=n        set end of string character (default 00h)
 FPAUSE        full-duration pause
 IPAUSE        interruptible pause
 STRLEN        use explicit string lengths
 STREOT        use terminated strings
 SRCHALL    search entire presentation space
 SRCHFROM    search from specified offset
 SRCHFRWD    search forward from position 1
 SRCHBKWD    search backward from last position in presentation space
 TWAIT        wait specified time for keyboard ready
 LWAIT        wait until keyboard ready
 NWAIT        no wait
 TRON        enable tracing
 TROFF        disable tracing
 AUTORESET    send reset before sending keys with function 03h
 NORESET    don't send reset
 QUIET        don't display messages sent with INT 21/AH=09h
 NOQUIET    allow messages to be displayed
 TIMEOUT=n    set timeout in 30-second intervals, 0 = wait until ^Break
 XLATE        translate extended attribute bytes
 NOXLATE    don't translate
 NEWRET        use HLLAPI v3.0 return code conventions
 OLDRET        use HLLAPI v2.0 return code conventions
----------7F0105-----------------------------
INT 7F - HDILOAD.EXE - 8514/A VIDEO CONTROLLER INTERFACE
    AX = 0105h get 8514/A entry points
Return: CF set on error
    CF clear if successful
        CX:DX -> array of FAR pointers to entry points
Note:    most functions are invoked by pushing the DWORD parameter block pointer
      and then performing a FAR call via the appropriate vector of the
      entry point array

Function numbers: (do FAR call via entry_points+4*function)
 08h    HOPEN
 10h    HINT
 13h    HLDPAL
 15h    HBBW
 17h    HBBR
 18h    HBBCHN
 1Dh    HQMODE
 22h    HCLOSE
 30h    HINIT
 31h    HSYNC
 39h    HSPAL
 3Ah    HRPAL
----------7F02-------------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE SEMAPHORE
    AH = 02h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status
        00h successful
        01h invalid function
        02h semaphore locked by other user
        AH = semaphore owner
        03h unable to unlock semaphore
        05h target PC did not respond
SeeAlso: AH=00h,AH=01h,AH=42h
----------7F03-------------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET USER NUMBER
    AH = 03h
Return: AL = user number
    AH = machine number (MW386)
Note:    this function call is the recommended method for a CPU-bound process to
      prevent its priority from being lowered
SeeAlso: AH=04h,AH=05h,AH=A1h
----------7F04-------------------------------
INT 7F - Alloy NTNX, MW386 - GET NUMBER OF USERS
    AH = 04h
Return: AL = total number of users on currrent machine (MW386)
    AL = number of slaves on system (NTNX)
SeeAlso: AH=03h
----------7F05-------------------------------
INT 7F - Alloy NTNX (Host) - LOCK/UNLOCK SYSTEM, SPOOLER CONTROL
    AH = 05h
    AL = function
        00h lock system (disable slave services)
        01h unlock system
        02h enable spooler
        03h disable spooler
        04h enable slave timer update
        05h disable slave timer update
        06h enable form feeds
        07h disable form feeds
SeeAlso: INT 17/AH=A4h
----------7F05-------------------------------
INT 7F - Alloy NTNX (Slave), MW386 - GET USER PARAMETERS
    AH = 05h
    DX:DI -> buffer for user information record (see below)
Notes:    MW386 provides this function for backward compatibility only, and sets
      many of the fields to zero because they are meaningless under MW386
    this function has no effect when called by the host (user 0)
SeeAlso: AH=03h

Format of user information record:
Offset    Size    Description
 00h    WORD    segment of video RAM
 02h    WORD    segment of secondary copy of video RAM
 04h    WORD    offset of screen update flag (see INT 10/AH=8Bh)
        flag nonzero if update needed
 06h    WORD    video NMI enable port
        (not used by MW386, set to 0000h)
 08h    WORD    video NMI disable port
        (not used by MW386, set to 0000h)
 0Ah    BYTE    processor type
        00h 8088
        01h V20
        02h 8086
        03h V30
        06h 80386
 0Bh    WORD    multitasking flag (00h = single tasking, 01h = multitasking)
        (not used by MW386, set to 0000h)
 0Dh    WORD    offset of terminal driver
        (not used by MW386, set to 0000h)
 0Fh    BYTE    port for console I/O
        (not used by MW386, set to 0000h)
 10h    WORD    offset of processor communication busy flag
        bit 7 set when slave communicating with host
 12h    WORD    pointer to FAR NX system call
        (not used by MW386, set to 0000h)
 14h    WORD    offset of 16-byte user configuration record (see AH=38h)
 16h    WORD    offset of command/status word
 18h    WORD    offset of screen valid flag (see INT 10/AH=93h)
        nonzero if screen must be repainted
 1Ah    WORD    offset of screen repaint flag
 1Ch    WORD    pointer to NEAR NX system call
        (not used by MW386, set to 0000h)
 1Eh    WORD    offset for intercept flags
        (not used by MW386, set to 0000h)
        intercept flag = FFh if MSDOS intercepts should be disabled
 20h    WORD    offset of terminal lock flag (see INT 10/AH=92h)
        lock flag = FFh if backgrnd screen updates should be suspended
 22h 26 BYTEs    reserved
----------7F06-------------------------------
INT 7F - Alloy NTNX (Host) - GET SHARED DRIVE INFO
    AH = 06h
    AL = drive number (1=A:, 2=B:, etc)
    ES:DI -> drive info record (see below)
Return: AX = status
        0000h successful
        ES:DI buffer filled
        0001h not shared drive

Format of drive info record:
Offset    Size    Description
 00h    WORD    segment of drive IO-REQUEST structure (MSDOS DPB)
 02h    WORD    segment of allocation map (owner table)
        one byte per FAT entry, containing user ID owning that entry
 04h    WORD    segment of master FAT for drive (copy of FAT on disk)
 06h    WORD    pointer to configuration file
 08h    WORD    total number of clusters
 0Ah    WORD    bytes per sector
 0Ch    WORD    sectors per cluster
 0Eh    BYTE    FAT type (0Ch = 12-bit, 10h = 16-bit)
----------7F06-------------------------------
INT 7F - Alloy NTNX (Slave) - ALLOCATE FREE CLUSTER ON SHARED DRIVE
    AH = 06h
    DL = drive number (1=A:,2=B:,etc)
    CX = number of clusters to allocate
Return: AH = status
        00h successful
        CX = number of clusters still free
        10h invalid shared drive request
        CL = first and second shared drives
        11h invalid cluster count (must be 01h-FFh)
----------7F07-------------------------------
INT 7F - Alloy NTNX, MW386 - GET LIST OF SHARED DRIVES
    AH = 07h
Return: ES:DI -> shared drive list (see below)
Note:    MW386 considers all fixed disks to be shared drives; only C and D will
      be returned as shared

Format of shared drive list:
Offset    Size    Description
 00h    BYTE    string length
 01h    BYTE    number of shared drives
 02h  N BYTEs    one byte per shared drive
----------7F08-------------------------------
INT 7F - Alloy NTNX (Host) - GET INTERRUPT VECTORS
    AH = 08h
    CL = function
        00h get original interrupt vector
        01h get Network Executive interrrupt
    AL = interrupt number
    DX:SI -> DWORD to hold interrupt vector
Return: AL = status
        00h successful
        01h interrupt vector not used by network executive
        02h invalid subfunction
Note:    the network executive uses interrupts 02h,08h,09h,0Fh,10h,13h,16h-19h,
      1Ch,20h,28h,2Ah,2Fh,5Bh,67h,7Fh,ECh, and F0h-FFh
SeeAlso: AH=09h/CL=03h,INT 21/AH=35h
----------7F08--CL02-------------------------
INT 7F - Alloy NTNX - SET MESSAGE DISPLAY TIMEOUT
    AH = 08h
    CL = 02h
    DX = timeout in seconds
Return: AL = status
        00h successful
        02h invalid subfunction
----------7F09-------------------------------
INT 7F - MultiLink Advanced - SET TASK PRIORITY
    AH = 09h
    AL = priority (0-7)
Note:    the installation check consists of ensuring that the interrupt vector
      is not pointing at segment 0000h, then checking whether the byte
      at offset 0000h in the interrupt handler's segment is E9h
----------7F09-------------------------------
INT 7F - Alloy NTNX - ENABLE/DISABLE MUD FILE CHECKING
    AH = 09h
    CL = function
        00h enable checking of RTNX.MUD file
        01h disable RTNX.MUD checking
----------7F09--CL02-------------------------
INT 7F - Alloy NTNX - SWITCH HOST TO DEDICATED MODE
    AH = 09h
    CL = 02h
Note:    in dedicated mode, the host will only poll for I/O requests from the
      slave processors, and not provide workstation services
----------7F09--CL03-------------------------
INT 7F - Alloy NTNX,MW386 - GET ALTERNATE INTERRUPT
    AH = 09h
    CL = 03h
    AL = default interrupt number (67h,7Fh,etc)
Return:    CL = actual interrupt which handles specified interrupt's calls
SeeAlso: AH=08h
----------7F0A--CL00-------------------------
INT 7F - Alloy NTNX - GET SYSTEM FLAGS
    AH = 0Ah
    CL = 00h
    ES:DI -> buffer for system flags (see below)
Return: ES:DI buffer filled
Notes:    on a slave, only the NX_Busy flag is returned
    all three flags are at fixed positions, so this function only needs to
      be called once
    an interrupt handler should only perform DOS or device accesses when
      all three flags are 00h

Format of system flags:
Offset    Size    Description
 00h    DWORD    pointer to NX_Busy flag (nonzero when communicating with users)
 04h    DWORD    pointer to device driver busy flag
 08h    DWORD    pointer to InTimer flag
----------7F0B--CL02-------------------------
INT 7F - Alloy NTNX (Host) - SET/RESET GRAPHICS DOS ON SLAVE
    AH = 0Bh
    CL = 02h
    AL = slave ID number
    CH = DOS to activate
        00h graphics DOS
        01h character DOS
Return: AL = status
        00h successful
        01h nothing done, proper DOS type already loaded
----------7F10--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - OPEN CHANNEL
    AH = 10h
    CL = 00h
    AL = channel number
    DX:DI -> channel buffer
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
        0Dh unable to open
Note:    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=01h,AH=10h/CL=04h,AH=14h/CL=02h
----------7F10--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE CHANNEL
    AH = 10h
    CL = 01h
    AL = channel number
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
        0Ah channel not open
Note:    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=00h,AH=10h/CL=05h
----------7F10--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK CHANNEL
    AH = 10h
    CL = 02h
    AL = channel number
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
        0Ah channel not open
        0Ch channel already locked
Note:    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=06h,AH=10h/CL=08h
----------7F10--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK CHANNEL
    AH = 10h
    CL = 03h
    AL = channel number
Return: AL = status (see AH=10h/CL=02h)
Notes:    should only be used on channels locked with AH=10h/CL=02h, not on those
      locked by receipt of a datagram
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=04h,AH=10h/CL=09h
----------7F10--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - RELEASE BUFFER
    AH = 10h
    CL = 04h
    AL = channel number
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Notes:    unlocks buffer after received datagram has been processed
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=00h
----------7F10--CL05-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE ALL CHANNELS
    AH = 10h
    CL = 05h
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Notes:    clears all pending datagrams and clears buffer pointers before closing
      the channels
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=01h
----------7F10--CL06-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK ALL OPEN CHANNELS
    AH = 10h
    CL = 06h
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Note:    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=08h
----------7F10--CL07-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK ALL LOCKED IDLE CHANNELS
    AH = 10h
    CL = 07h
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Notes:    unlocks all locked channels which have no pending datagrams
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=09h
----------7F10--CL08-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK MULTIPLE CHANNELS
    AH = 10h
    CL = 08h
    DX = maximum channel number to lock
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Notes:    locks channels numbered 00h through the value in DX
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=02h,AH=10h/CL=06h,AH=10h/CL=09h
----------7F10--CL09-------------------------
INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK MULTIPLE CHANNELS
    AH = 10h
    CL = 09h
    DX = maximum channel number to unlock
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Notes:    unlocks channels numbered 00h through the value in DX
    may not be invoked from within a hardware interrupt handler
SeeAlso: AH=10h/CL=03h,AH=10h/CL=07h,AH=10h/CL=08h
----------7F11-------------------------------
INT 7F - Alloy NTNX, MW386 - SEND DATAGRAM
    AH = 11h
    DX:SI -> request block (see below)
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
        0Ah packet too large (or <2 bytes if NTNX)
        0Bh can't send packet to itself
        0Ch invalid number of destinations
        0Dh destination channel number out of range
        0Eh destination user is busy
        0Fh destination user has locked channel
        10h channel not open
        11h no datagram server on destination (NTNX)
Note:    if wildcard channel FFh used, actual channel number will be filled in
SeeAlso: AH=12h

Format of request block:
Offset    Size    Description
 00h    DWORD    pointer to packet to send
 04h    WORD    packet size in bytes (1-4096)
 06h    BYTE    number of destinations for packet (max 1Fh)
 07h 31 BYTEs    destination user IDs (FFh = broadcast to all except sender)
 26h 31 BYTEs    destination channels (FFh = first available channel)
 45h 31 BYTEs    return destination statuses
----------7F12-------------------------------
INT 7F - Alloy NTNX, MW386 - ACKNOWLEDGE DATAGRAM
    AH = 12h
    AL = channel number being acknowledged
    DI:DX = 32-bit status to return to sender
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
        0Ah channel not open
        0Bh no message in channel
        0Ch destination slave busy--retry (NTNX)
        0Dh destination user not active
        0Eh destination slave not active (NTNX)
        0Fh destination disabled datagram service
Note:    also unlocks the channel, allowing the next datagram to be received
SeeAlso: AH=11h,AH=15h/CL=04h
----------7F13--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - RESET USER DATAGRAMS
    AH = 13h
    CL = 00h
Note:    clears all pending datagrams and removes all channels opened in NTNX
      compatibility mode
----------7F14--CL00-------------------------
INT 7F - Alloy NTNX, MW386 -  SET RECEIVE ISR
    AH = 14h
    CL = 00h
    DX:DI -> application FAR receive service routine (see below)
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
SeeAlso: AH=14h/CL=01h,AH=14h/CL=03h

Service routine called with:
    DH = sender ID
    DL = channel with datagram
    interrupts disabled
Return: AL = response code
        00h leave buffer locked, set channel status, and repeat call later
        01h release channel buffer
        02h change buffer pointer to DX:DI
    AH,CX,DX,DI,SI may be destroyed
----------7F14--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - SET ACKNOWLEDGE ISR
    AH = 14h
    CL = 01h
    DX:DI -> application FAR acknowledge service routine (see below)
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Note:    the service routine will be called as soon as an acknowledgment arrives
SeeAlso: AH=12h,AH=14h/CL=00h,AH=14h/CL=04h,AH=15/CL=04h

Service routine called with:
    DS:SI -> acknowledge structure (see AH=15h/CL=04h)
Return: AL = response code
        00h application busy, network executive should call again later
        01h acknowledge accepted
    AH,DX,SI may be destroyed
----------7F14--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - SET CHANNEL BUFFER POINTER
    AH = 14h
    CL = 02h
    AL = channel number
    DX:DI -> receive buffer
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
Note:    may be called from within a receive ISR or when a datagram is pending
SeeAlso: AH=10h/CL=00h,AH=14h/CL=00h
----------7F14--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - GET RECEIVE ISR
    AH = 14h
    CL = 03h
Return: DX:DI -> current receive ISR
SeeAlso: AH=14h/CL=00h,AH=14h/CL=04h
----------7F14--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - GET ACKNOWLEDGE ISR
    AH = 14h
    CL = 04h
Return: DX:DI -> current acknowledge ISR
SeeAlso: AH=14h/CL=01h,AH=14h/CL=03h
----------7F14--CL05-------------------------
INT 7F - Alloy NTNX (Host), MW386 - GET BUSY POINTER
    AH = 14h
    CL = 05h
    DX:DI -> buffer for busy structure (see below)
Return: DX:DI buffer filled

Format of busy structure:
Offset    Size    Description
 00h    DWORD    pointer to busy flag byte
 04h    WORD    fixed port address (FF00h)
----------7F15--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - GET CHANNEL STATUS
    AH = 15h
    CL = 00h
    AL = channel number
    DX:DI -> status structure (see below)
Return: AL = status
        00h successful
        01h busy
        02h channel range error (not 00h-3Fh)
        03h invalid subfunction
SeeAlso: AH=15h/CL=01h

Format of status structure:
Offset    Size    Description
 00h    BYTE    channel status
        bit 0: channel open
            1: channel buffer contains received data
            7: channel locked
 01h    BYTE    sender ID
----------7F15--CL01-------------------------
INT 7F - Alloy NTNX, MW386 - GET NEXT FULL CHANNEL
    AH = 15h
    CL = 01h
    DX:DI -> full-channel structure
Return: AL = status
        00h successful
        01h busy
        0Ah no datagrams available
Note:    MW386 v1.0 returns the lowest channel with a datagram; newer versions
      and NTNX return the oldest datagram
SeeAlso: AH=15h/CL=00h

Format of full-channel structure:
Offset    Size    Description
 00h    BYTE    number of channel with oldest datagram
 01h    BYTE    sender ID
----------7F15--CL02-------------------------
INT 7F - Alloy NTNX, MW386 - GET MAXIMUM NUMBER OF CHANNELS
    AH = 15h
    CL = 02h
Return: AH = number of channels available (40h for MW386)
Note:    the application may always assume at least 32 channels available
SeeAlso: AH=15h/CL=03h
----------7F15--CL03-------------------------
INT 7F - Alloy NTNX, MW386 - GET MAXIMUM PACKET SIZE
    AH = 15h
    CL = 03h
    DX:DI -> WORD for return value
Return: buffer WORD filled with maximum packet size (4096 for MW386)
SeeAlso: AH=15h/CL=02h
----------7F15--CL04-------------------------
INT 7F - Alloy NTNX, MW386 - GET AND CLEAR ACKNOWLEDGE STATUS
    AH = 15h
    CL = 04h
    DX:DI -> status structure (see below)
Return: AL = status
        00h successful
        DX:DI structure filled
        01h busy
        0Ah no acknowledgement has arrived
SeeAlso: AH=12h,AH=14h/CL=01h

Format of status structure:
Offset    Size    Description
 00h    BYTE    sender ID
 01h    BYTE    channel number
 02h  4 BYTEs    receiver status (see AH=12h)
----------7F16-------------------------------
INT 7F - Alloy NTNX, MW386 - DIRECT MEMORY TRANSFER
    AH = 16h
    DX:SI -> transfer structure (see below)
Return: AL = status
        00h successful
        0Ah source or destination out of range
        0Bh transfer kernal busy--try again
Notes:    this call transfers memory contents directly between users; both source
      and destination user IDs may differ from the caller's ID
    no segment wrap is allowed

Format of transfer structure:
Offset    Size    Description
 00h    WORD    bytes to transfer
 02h    BYTE    source ID
        FEh = caller
 03h    DWORD    source address
 07h    BYTE    destination ID
        FFh = all slaves except caller
        FEh = caller
 08h    DWORD    destination address
----------7F21-------------------------------
INT 7F - Alloy NTNX, MW386 - SEND MESSAGE OR COMMAND TO USER(S)
    AH = 21h
    AL = sender's user ID
    DS:DX -> control packet (see below)
Note:    messages or commands are ignored if disabled by the destination user
SeeAlso: AH=22h

Format of control packet:
Offset    Size    Description
 00h    BYTE    packet type
        00h message
        01h NTNX command
        02h MW386 command
 01h    BYTE    destination user ID or 'A' for all users
 02h 62 BYTEs    ASCIZ message (packet type 00h)
        BIOS keycodes terminated by NUL byte (type 01h) or word (02h)
Note:    a maximum of 16 keycodes will be processed for NTNX and MW386 commands
----------7F22-------------------------------
INT 7F - Alloy NTNX - GET MESSAGE
    AH = 22h
Return: pending messages displayed on user's screen
SeeAlso: AH=21h
----------7F24-------------------------------
INT 7F - Alloy NTNX, MW386 - ATTACH OR RELEASE DRIVE FOR LOW-LEVEL WRITE ACCESS
    AH = 24h
    CL = function
        00h attach
        01h release
    CH = drive (0=A:,1=B:,etc)
Return: AX = status
        00h successful
        01h invalid request
        02h already attached
        03h not attached
        04h lock table full
Note:    only drives on the current machine may be attached
----------7F24-------------------------------
INT 7F - Alloy NTNX - ATTACH/RELEASE HOST PROCESSOR
    AH = 24h
    CL = function
        02h attach host
        03h release host
Return: AX = status
        00h successful
        01h invalid request
        02h already attached
        03h not attached
        04h lock table full
Note:    the host processor may be attached in order to perform I/O via the host
----------7F25--CL00-------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET NETWORK EXECUTIVE VERSION
    AH = 25h
    CL = 00h
Return: AH = version suffix letter
    CH = major version number
    CL = minor version number
SeeAlso: AH=25h/CL=01h
----------7F25--CL01-------------------------
INT 7F - Alloy ANSK, NTNX, MW386 - GET NETWORK EXECUTIVE TYPE
    AH = 25h
    CL = 01h
Return: CL = type
        00h RTNX
        01h ATNX
        02h NTNX
        03h BTNX
        04h MW386
        05h ANSK
SeeAlso: AH=25h/CL=00h
----------7F26--CL00-------------------------
INT 7F - Alloy NTNX, MW386 - GET NTNX FILE MODE
    AH = 26h
    CL = 00h
Return: AX = file mode bits
        bit 0: directory protection enabled
        1: extended open enabled
        2: flush on every disk write
        3: flush on every disk write in locked interval
        4: flush on reads from simultaneously opened file
Note:    MW386 does not support file modes, and always returns AX=001Fh
SeeAlso: AH=26h,AH=26h/CL=06h
----------7F26-------------------------------
INT 7F - Alloy NTNX - SET FILE I/O CHECKING LEVEL
    AH = 26h
    CL = check type to set/reset
        01h directory protection
        02h extended open
        03h flush on every disk write
        04h flush on disk write if any lock set during write
        05h flush on all reads if file written
    AL = new state (00h off, 01h on)
SeeAlso: AH=26h/CL=00h,AH=26h/CL=06h
----------7F26--CL06-------------------------
INT 7F - Alloy NTNX - CANCEL FLUSH ON WRITE
    AH = 26h
    CL = 06h
Note:    cancels flags set by AH=26h/CL=03h and AH=26h/CL=04h
SeeAlso: AH=26h/CL=00h
----------7F30-------------------------------
INT 7F - Alloy MW386 - GET PORT INFORMATION
    AH = 30h
    CX = MW386 port number
Return: AL = FFh if port not found
       else     driver unit number
           BL = port mode
           BH = port type
           02h remote
           DH = owner's machine ID
           DL = owner's user ID
SeeAlso: INT 17/AH=8Bh
----------7F31-------------------------------
INT 7F - Alloy MW386 v1.x only - CHECK PORT ASSIGNMENT
    AH = 31h
    ???
Return: ???
----------7F37-------------------------------
INT 7F - Alloy NTNX (Host) - GET SEMAPHORE TABLE
    AH = 37h
Return: ES:AX -> semaphore table
----------7F37-------------------------------
INT 7F - Alloy ANSK, NTNX (Slave) - DUMP STRING TO TERMINAL
    AH = 37h
    DS:DX -> ASCIZ string to display
Note:    if the string is empty, a terminal update will be forced
----------7F38-------------------------------
INT 7F - Alloy NTNX (Slave), MW386 - SET NEW TERMINAL DRIVER
    AH = 38h
    AL = new terminal driver number
        FFh dummy driver
        FEh current driver
        FDh load new driver
        DS:SI -> new driver
SeeAlso: AH=39h
----------7F39-------------------------------
INT 7F - Alloy MW386 - SET TERMINAL DRIVER FOR ANOTHER USER
    AH = 39h
    AL = new terminal driver number
    DL = user number (FFh = caller)
    DH = machine number if DL <> FFh
Return: CF set if invalid user number
    CF clear if successful
Notes:    only available to supervisors
    the new driver number will not take effect until the user is rebooted
SeeAlso: AH=38h
----------7F3A-------------------------------
INT 7F - Alloy MW386 - GET TERMINAL PARAMETERS
    AH = 3Ah
    DL = user number (FFh = caller)
    DH = machine number
Return: CF clear if successful
        AH = terminal driver number
        AL = baud rate (00h = 38400, 01h = 19200, etc)
        CL = parity (00h none, 01h even, 02h odd)
        CH = handshaking (00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC)
    CF set if invalid user number
SeeAlso: AH=3Bh
----------7F3B-------------------------------
INT 7F - Alloy MW386 - SET TERMINAL PARAMETERS
    AH = 3Bh
    AL = baud rate (00h = 38400, 01h = 19200, etc)
    CL = parity (00h none, 01h even, 02h odd)
    CH = handshaking (00h none, 01h XON/XOFF, 02h DTR/DSR, 03h XPC)
    DL = user number (FFh = caller)
    DH = machine number for user
Return: CF set if invalid user number
Notes:    only available to supervisors
    the new parameters will take effect immediately if the user's terminal
      has not been started, else AH=3Dh must be called to post the changes
SeeAlso: AH=3Ah,AH=3Dh
----------7F3C-------------------------------
INT 7F - Alloy MW386 - ENABLE/DISABLE AUTOBAUD DETECT
    AH = 3Ch
    AL = new state
         00h disabled, 01h enabled
    DL = user number (FFh = caller)
    DH = machine number for user
Return: CF set if invalid user number
Note:    only available to supervisors
SeeAlso: AH=3Dh
----------7F3D-------------------------------
INT 7F - Alloy MW386 - POST TERMINAL CONFIGURATION CHANGES
    AH = 3Dh
Note:    should be called whenever a program changes the terminal type or its
      parameters
SeeAlso: AH=3Bh
----------7F41-------------------------------
INT 7F - Alloy NTNX - LOCK FILE FOR USER
    AH = 41h
    AL = user ID
    DS:DX -> ASCIZ filename
Return: AL = status
        00h successful
        01h invalid function
        02h already locked
        03h unable to lock
        04h lock table full
Note:    requests exclusive read/write access to file
SeeAlso: AH=00h,,AH=41h"MW386",AH=42h"NTNX"
----------7F41-------------------------------
INT 7F - Alloy MW386 - LOCK SEMAPHORE FOR USER
    AH = 41h
    AL = user ID
    DS:DX -> ASCIZ semaphore name
Return: AL = status
        00h successful
        01h invalid function
        02h semaphore already locked
        03h unable to lock semaphore
        04h semaphore space exhausted
SeeAlso: AH=00h,AH=42h"MW386"
----------7F42-------------------------------
INT 7F - Alloy NTNX - UNLOCK FILE FOR USER
    AH = 42h
    AL = user ID
    DS:DX -> ASCIZ filename
Return: AL = status
        00h successful
        01h invalid function
        02h already locked
        03h unable to lock
        04h lock table full
SeeAlso: AH=00h,AH=41h"NTNX",AH=42h"MW386"
----------7F42-------------------------------
INT 7F - Alloy MW386 - UNLOCK SEMAPHORE FOR USER
    AH = 42h
    AL = user ID
    DS:DX -> ASCIZ semaphore name
Return: AL = status
        00h successful
        01h invalid function
        03h unable to unlock semaphore
SeeAlso: AH=02h,AH=41h"MW386",AH=42h"NTNX"
----------7F4E-------------------------------
INT 7F - Alloy MW386 v2+ - SET ERROR MODE
    AH = 4Eh
    AL = error mode flags
        bit 0: display critical disk errors
        1: display sharing errors
    DX = 4E58h ("NX")
Return: AL = status
        00h successful
SeeAlso: AH=4Fh
----------7F4F-------------------------------
INT 7F - Alloy MW386 v2+ - SET FCB MODE
    AH = 4Fh
    AL = FCB mode
        02h read/write compatibility
        42h read/write shared
    DX = 4E58h ("NX")
Return: AL = status
        00h successful
----------7F81-------------------------------
INT 7F - Alloy NTNX - ATTACH DEVICE FOR USER
    AH = 81h
    AL = user ID
    DS:DX -> ASCIZ device name
SeeAlso: AH=82h
----------7F82-------------------------------
INT 7F - Alloy NTNX - RELEASE DEVICE FOR USER
    AH = 82h
    AL = user ID
    DS:DX -> ASCIZ device name
SeeAlso: AH=81h
----------7FA0-------------------------------
INT 7F - Alloy MW386 - GET USER NAME
    AH = A0h
    DL = user number (FFh = caller)
    DH = machine number for user
    ES:DI -> 17-byte buffer for ASCIZ user name
Return: CF set if invalid user number
SeeAlso: AH=03h,AH=A1h
----------7FA1-------------------------------
INT 7F - Alloy MW386 - GET MACHINE, USER, AND PROCESS NUMBER
    AH = A1h
Return: AL = process number
    DL = user number
    DH = machine number
SeeAlso: AH=03h,AH=A0h,AH=A2h
----------7FA2-------------------------------
INT 7F - Alloy MW386 - GET USER PRIVILEGE LEVEL
    AH = A2h
    DL = user number (FFh = caller)
    DH = machine number for user
Return: CF clear if successful
        AL = privilege level
        00h supervisor
        01h high
        02h medium
        03h low
    CF set if invalid user number
SeeAlso: AH=A1h,AH=A3h
----------7FA3-------------------------------
INT 7F - Alloy MW386 - GET USER LOGIN STATE
    AH = A3h
    DL = user number
    DH = machine number for user
Return: CF clear if successful
        AL = login state
        00h never logged in
        01h currently logged out
        03h currently logged in
    CF set if invalid user number or user not active
SeeAlso: AH=A2h
----------7FA4-------------------------------
INT 7F - Alloy MW386 - VERIFY USER PASSWORD
    AH = A4h
    DS:DX -> ASCIZ password (null-padded to 16 bytes)
Return: AL = 00h if accepted
       else     invalid password
----------7FA5-------------------------------
INT 7F - Alloy MW386 - GET/SET USER STATUS
    AH = A5h
    AL = function
        00h get status
        Return: BX = user flags
                bit 5: allow messages
            CL = scan code for task manager hotkey
            CH = scan code for spooler hotkey
            DL = scan code for task swapper hotkey
            DH = modifier key status
        01h set status
        BX = user flags (see above)
        CL = scan code for task manager hotkey
        CH = scan code for spooler hotkey
        DL = scan code for task swapper hotkey
        DH = modifier key status
    DI = machine number and user number
Return: CF set if invalid user number
Note:    must have supervisor privilege to set another user's status
----------7FB0-------------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE ALL SEMAPHORES FOR USER
    AH = B0h
    AL = user number
    DS = code segment
Note:    MW386 ignores AL and DS; it releases all semaphores locked using INT 67
      or INT 7F locking functions
SeeAlso: AH=B1h,AH=B2h,AH=B3h,AH=B4h
----------7FB1-------------------------------
INT 7F - Alloy NTNX, MW386 - RELEASE NORMAL SEMAPHORES FOR USER
    AH = B1h
    AL = (bits 7-5) 000
         (bits 4-0) user ID
Note:    MW386 ignores AL; it releases all semaphores locked using INT 67 or
      INT 7F locking functions
SeeAlso: AH=B0h,AH=B2h,AH=B3h,AH=B4h
----------7FB2-------------------------------
INT 7F - Alloy NTNX - RELEASE MESSAGES FOR USER
    AH = B2h
    AL = (bits 7-5) 001
         (bits 4-0) user ID
SeeAlso: AH=B0h,AH=B1h,AH=B3h,AH=B4h
----------7FB3-------------------------------
INT 7F - Alloy NTNX - RELEASE FILES FOR USER
    AH = B3h
    AL = (bits 7-5) 010
         (bits 4-0) user ID
SeeAlso: AH=B0h,AH=B1h,AH=B2h,AH=B4h
----------7FB4-------------------------------
INT 7F - Alloy NTNX - RELEASE DEVICES FOR USER
    AH = B4h
    AL = user ID
SeeAlso: AH=B0h,AH=B1h,AH=B2h,AH=B3h
----------7FC3-------------------------------
INT 7F - Alloy MW386 - WRITE BYTE TO TERMINAL AUX PORT
    AH = C3h
    AL = byte to write
Return: CF clear if successful
    CF set on error
SeeAlso: AH=C6h
----------7FC5-------------------------------
INT 7F - Alloy MW386 - CHANGE CONSOLE MODE
    AH = C5h
    AL = new console mode
        00h keyboard indirect
        01h keyboard direct
        02h data handshake enforced
        03h no data handshake
Return: CF clear if successful
        AL = prior console mode
    CF set on error (caller is not remote user)
Note:    modes 2 and 3 may be used for input through the console port; no video
      output should be performed in these modes
----------7FC6-------------------------------
INT 7F - Alloy MW386 - WRITE BYTE TO CONSOLE PORT
    AH = C6h
    AL = byte to write
Return: CF clear if successful
    CF set on error (caller is not remote user)
Note:    any terminal driver data translation will be bypassed
SeeAlso: AH=C3h,AH=C7h
----------7FC7-------------------------------
INT 7F - Alloy MW386 - READ CONSOLE DATA BYTE
    AH = C7h
Return: CF clear if successful
        AL = byte read
    CF set on error (no data available or caller is not remote user)
Note:    used to read data after placing console in mode 2 or 3 (see AH=C5h)
SeeAlso: AH=C5h,AH=C6h,AH=C8h
----------7FC8-------------------------------
INT 7F - Alloy MW386 - READ CONSOLE DATA INTO BUFFER
    AH = C8h
    AL = maximum bytes to read
    ES:DI -> buffer for console data
Return: CF clear if successful
        CX = number of bytes read
    CF set on error (caller is not remote user)
SeeAlso: AH=C7h
----------7FCF-------------------------------
INT 7F - Alloy NTNX - REBOOT USER PROCESSOR
    AH = CFh
    DS:DX -> ASCIZ string containing user number to be reset
SeeAlso: AH=D6h
----------7FD6-------------------------------
INT 7F - Alloy MW386 - RESET NETWORK EXECUTIVE
    AH = D6h
    DS:DX -> reset packet (see below)
Return: never if succesful
Note:    all users will be shut down immediately if successful
SeeAlso: AH=CFh

Format of reset packet:
Offset    Size    Description
 00h    DWORD    reset code (60606060h)
 04h 16 BYTEs    ASCIZ supervisor password padded with nulls
----------7FD7-------------------------------
INT 7F - Alloy MW386 - POST EVENT
    AH = D7h
    AL = user number (if local event)
    DX = event number
----------7FD8-------------------------------
INT 7F - Alloy MW386 - FLUSH DISK BUFFERS
    AH = D8h
Return: CF set on error
Note:    forces all disk buffers to be written out immediately
SeeAlso: INT 21/AH=0Dh,INT 21/AX=5D01h,INT 2F/AX=1120h
----------7FDB-------------------------------
INT 7F - Alloy MW386 v2+ - GET MW386 INVOCATION DRIVE
    AH = DBh
Return: AL = drive from which MW386 was started (2=C:,3=D:,etc)
----------7FE0-------------------------------
INT 7F - Alloy MW386 - CREATE DOS TASK
    AH = E0h
    AL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
    DS:DX -> ASCIZ task name (max 16 bytes)
Return: CF clear if successful
        AL = task create ID
    CF set on error
Note:    only foreground DOS tasks can use this function
SeeAlso: AH=E1h,AH=E2h,AH=E3h,AH=E6h,AH=E7h
----------7FE1-------------------------------
INT 7F - Alloy MW386 - GET DOS TASK PID FROM CREATE ID
    AH = E1h
    AL = create ID (from AH=E0h)
Return: AL = DOS process number
    CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
Note:    this function should not be called immediately after creating a new
      DOS task, since the new task is being initialized by a concurrent
      process
SeeAlso: AH=E0h,AH=E2h
----------7FE2-------------------------------
INT 7F - Alloy MW386 - SWITCH TO NEW DOS TASK
    AH = E2h
    AL = DOS process number (from AH=E1h)
Return: CF set on error (invalid process number or caller not foreground task)
Notes:    specified task becomes the foreground task and current task is placed
      in the background
    may only be called by a foreground task
SeeAlso: AH=E0h,AH=E1h
----------7FE3-------------------------------
INT 7F - Alloy MW386 - CHANGE NAME OF DOS TASK
    AH = E3h
---v1.x---
    AL = user number
---v2+---
    BH = user number
    BL = task number
---
    DS:DX -> ASCIZ task name
Return: CF set on error (invalid process number)
SeeAlso: AH=E0h,AH=E4h,AH=E5h
----------7FE4-------------------------------
INT 7F - Alloy MW386 - GET TASK NAME FROM PROCESS NUMBER
    AH = E4h
---v1.x---
    AL = user number
---v2+---
    BH = user number
    BL = task number
---
    ES:DI -> buffer for task name
Return: CF clear if successful
        CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
        DX = task flags
        bit 7: MSDOS process
        ES:DI buffer filled
    CF set on error (invalid process number)
SeeAlso: AH=E3h,AH=E5h
----------7FE5-------------------------------
INT 7F - Alloy MW386 - GET PROCESS NUMBER FROM TASK NAME
    AH = E5h
    DS:DX -> ASCIZ task name
    BH = user number
Return: CF clear if successful
        AL = DOS process number
        CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
    CF set on error (no match for name)
SeeAlso: AH=E3h,AH=E4h
----------7FE6-------------------------------
INT 7F - Alloy MW386 - GET NUMBER OF AVAILABLE USER TASKS
    AH = E6h
Return: AX = number of processes available to current user
SeeAlso: AH=E0h
----------7FE7-------------------------------
INT 7F - Alloy MW386 - REMOVE DOS TASK
    AH = E7h
    AL = DOS process number
Return: CF set on error (invalid process number or first process)
Note:    can only be called by a foreground task
SeeAlso: AH=E0h
----------7FE8-------------------------------
INT 7F - Alloy MW386 - DOS TASK DELAY
    AH = E8h
    CX = delay time in milliseconds
Note:    a delay of 0 may be used to surrender the current time slice
SeeAlso: INT 15/AX=1000h,INT 21/AH=EEh"DoubleDOS",INT 2F/AX=1680h
----------7FF0-------------------------------
INT 7F - Alloy MW386 - RESTRICT DIRECTORY TO GROUP
    AH = F0h
    AL = group number
    DS:DX -> ASCIZ directory name
Return: CF clear if successful
        AX = status
        0002h directory not found
        0003h directory not found
        0005h directory in use, cannot be restricted
        02xxh restricted to group xxh
    CF set on error
Note:    the restriction on the directory may be removed by calling this
      function with group 0, then using AH=F1h to assign the directory to
      group 0
SeeAlso: AH=F1h,AH=F2h,AH=F3h
----------7FF1-------------------------------
INT 7F - Alloy MW386 - ASSIGN DIRECTORY TO GROUP
    AH = F1h
    AL = group number
    DS:DX -> ASCIZ directory name
Notes:    performs permanent assignment to a group; no immediate action is taken
      unless the directory has been restricted with AH=F0h
    may be used to restrict a nonexistent directory
SeeAlso: AH=F0h
----------7FF2-------------------------------
INT 7F - Alloy MW386 - READ RESTRICTED DIRECTORY ENTRY
    AH = F2h
    CX = entry number
    ES:DI -> 64-byte buffer
Return: CF clear if successful
        buffer filled with 63-byte directory info and 1-byte group number
    CF set on error (invalid entry)
SeeAlso: AH=F0h,AH=F3h
----------7FF3-------------------------------
INT 7F - Alloy MW386 - READ RESTRICTED DIRECTORY ENTRY FOR GROUP
    AH = F3h
    AL = group number
    CX = entry number
    ES:DI -> 64-byte buffer
Return: CF clear if successful
        CX = next entry number
        buffer filled with 63-byte directory info and 1-byte group number
    CF set on error (no more matching entries)
Note:    like AH=F2h, but only returns directories belonging to the specified
      group
SeeAlso: AH=F2h
----------7FF8-------------------------------
INT 7F - Alloy MW386 - ASSIGN USER TO GROUP
    AH = F8h
    AL = group number
    DL = user number
    DH = machine number (currently 00h)
Return: CF clear if successful
    CF set on error (user already in maximum number of groups)
Note:    each user is allowed eight group assignments
SeeAlso: AH=F9h,AH=FAh
----------7FF9-------------------------------
INT 7F - Alloy MW386 - REMOVE USER FROM GROUP
    AH = F9h
    AL = group number
    DL = user number
    DH = machine number (currently 00h)
Return: CF set if failed
SeeAlso: AH=F8h,AH=FAh
----------7FFA-------------------------------
INT 7F - Alloy MW386 - GET USER GROUP LIST
    AH = FAh
    DL = user number
    DH = machine number (currently 00h)
    ES:DI -> 16-byte buffer for group list
Return: CX = number of groups
    ES:DI buffer filled with group numbers
SeeAlso: AH=F8h,AH=F9h
----------7FFB-------------------------------
INT 7F - Alloy MW386 - ASSIGN GROUP NAME
    AH = FBh
    CL = group number
    ES:DI -> ASCIZ group name (max 17 bytes)
SeeAlso: AH=FCh
----------7FFC-------------------------------
INT 7F - Alloy MW386 - GET GROUP NAME
    AH = FCh
    CL = group number
    ES:DI -> 17-byte buffer for ASCIZ name
Return: ES:DI buffer filled
Note:    if the group has not been named, "(unnamed)" is returned
SeeAlso: AH=FBh
----------80---------------------------------
INT 80 - Q-PRO4 - ???
----------80---------------------------------
INT 80 - reserved for BASIC
----------80----BX0000-----------------------
INT 80 - SoundBlaster SBFM driver - GET VERSION
    BX = 0000h
Return: ???
Note:    SBFM installs at a free interrupt in the range 80h through BFh
SeeAlso: BX=0008h
----------80----BX0001-----------------------
INT 80 - SoundBlaster SBFM driver - SET MUSIC STATUS BYTE ADDRESS
    BX = 0001h
    DX:AX -> music status byte
SeeAlso: BX=0000h,BX=0002h,BX=0003h
----------80----BX0002-----------------------
INT 80 - SoundBlaster SBFM driver - SET INSTRUMENT TABLE
    BX = 0002h
    CX = number of instruments
    DX:AX -> instrument table
SeeAlso: BX=0000h,BX=0001h,BX=0005h
----------80----BX0003-----------------------
INT 80 - SoundBlaster SBFM driver - SET SYSTEM CLOCK RATE
    BX = 0003h
    AX = clock rate divisor (1193180 / desired frequency in Hertz)
        FFFFh to restore to 18.2 Hz
SeeAlso: BX=0000h,BX=0001h,BX=0004h
----------80----BX0004-----------------------
INT 80 - SoundBlaster SBFM driver - SET DRIVER CLOCK RATE
    BX = 0004h
    AX = driver clock rate divisor (1193180 / frequency in Hertz)
Note:    default frequency is 96 Hz
SeeAlso: BX=0000h,BX=0003h
----------80----BX0005-----------------------
INT 80 - SoundBlaster SBFM driver - TRANSPOSE MUSIC
    BX = 0005h
    AX = semi-tone offset
SeeAlso: BX=0000h,BX=0002h,BX=0006h
----------80----BX0006-----------------------
INT 80 - SoundBlaster SBFM driver - PLAY MUSIC
    BX = 0006h
    DX:AX -> music block
Return: AX = status
        0000h successful
        0001h music already active
SeeAlso: BX=0000h,BX=0007h,BX=000Ah
----------80----BX0007-----------------------
INT 80 - SoundBlaster SBFM driver - STOP MUSIC
    BX = 0007h
Return: AX = status
        0000h successful
        0001h music not active
SeeAlso: BX=0000h,BX=0006h,BX=0009h
----------80----BX0008-----------------------
INT 80 - SoundBlaster SBFM driver - RESET DRIVER
    BX = 0008h
Return: AX = status
        0000h successful
        0001h music is active
SeeAlso: BX=0000h
----------80----BX0009-----------------------
INT 80 - SoundBlaster SBFM driver - PAUSE MUSIC
    BX = 0009h
Return: AX = status
        0000h successful
        0001h no music active
SeeAlso: BX=0000h,BX=0007h,BX=000Ah
----------80----BX000A-----------------------
INT 80 - SoundBlaster SBFM driver - RESUME MUSIC
    BX = 000Ah
Return: AX = status
        0000h successful
        0001h no music paused
SeeAlso: BX=0000h,BX=0006h,BX=0009h
----------80----BX000B-----------------------
INT 80 - SoundBlaster SBFM driver - SET USER-DEF TRAP FOR SYSTEM-EXCLUSIVE CMDS
    BX = 000Bh
    DX:AX -> trap routine
SeeAlso: BX=0000h
----------8001-------------------------------
INT 80 - QPC Software PKTINT.COM - INITIALIZE
    AH = 01h
Return: AX = 0000h
    CX = FFFFh
    DX = FFFFh
Notes:    this interrupt is the WinQVTNet protected mode interface to Windows 3.0
    all buffer pointers are reset back to 0
----------8002-------------------------------
INT 80 - QPC Software PKTINT.COM - GET BUFFER ADDRESSES
    AH = 02h
    BX = extra bytes to allocate per packet
Return: AX = segment address of 10K buffer (for receives???)
    BX = segment address of 2K buffer (for sends???)
SeeAlso: AH=05h
----------8003-------------------------------
INT 80 - QPC Software PKTINT.COM - GET ENTRY POINT
    AH = 03h
Return: CX:DX -> receive call address
Note:    the returned address can be used in the packet driver calls since it
      will be a valid address in all DOS boxes
SeeAlso: AH=06h
----------8004-------------------------------
INT 80 - QPC Software PKTINT.COM - ENABLE???
    AH = 04h
    BX = ???
Return: ???
----------8005-------------------------------
INT 80 - QPC Software PKTINT.COM - GET RECEIVE STATISTICS
    AH = 05h
Return: AX = amount of buffer currently in use
    BX = current offset in buffer
    CX = number of times receive has been called
SeeAlso: AH=02h
----------8006-------------------------------
INT 80 - QPC Software PKTINT.COM - REMOVE RECEIVED PACKET
    AH = 06h
Return: BX = next packet offset
    CX = number of bytes still buffered
    DX = size of packet released back into buffer pool
SeeAlso: AH=03h
----------81---------------------------------
INT 81 - reserved for BASIC
----------81---------------------------------
INT 81 - IBM TOKEN RING ADAPTER - ???
----------82---------------------------------
INT 82 - reserved for BASIC
----------82---------------------------------
INT 82 - IBM TOKEN RING ADAPTER - ???
    AH = function
        00h display message???
        DS:BX -> string
    ???
Return: ???
----------83---------------------------------
INT 83 - reserved for BASIC
----------84---------------------------------
INT 84 - reserved for BASIC
----------85---------------------------------
INT 85 - reserved for BASIC
----------86---------------------------------
INT 86 - NetBIOS - ORIGINAL INT 18
Note:    some implementations of NetBIOS reportedly relocate INT 18 here
SeeAlso: INT 18
----------86---------------------------------
INT 86 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------86---------------------------------
INT 86 - APL*PLUS/PC - Terminate APL session and return to DOS
----------87---------------------------------
INT 87 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------87---------------------------------
INT 87 - APL*PLUS/PC - ????
----------88---------------------------------
INT 88 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------88----AL00-------------------------
INT 88 - APL*PLUS/PC - CREATE OBJECT OF ARBITRARY RANK OR SHAPE
    AL = 00h
    BX = STPTR of the variable to be assigned
    ES:SI -> model of type, rank, and shape (see below)
Return: ES:DI -> first data byte of object
    DX:CX = number of elements in the object
SeeAlso: INT C8"APL"

Format of shape model:
Offset    Size    Description
 00h    BYTE    type
        01h character (2-byte dimension sizes)
        02h integer (2-byte dimension sizes)
        08h floating point (2-byte dimension sizes)
        11h character (4-byte dimension sizes)
        12h integer (4-byte dimension sizes)
        18h floating point (4-byte dimension sizes)
 01h    BYTE    rank
 02h    WORD/DWORD first dimension of shape
 N    WORD/DWORD second dimension of shape
    ...
----------88----AL01-------------------------
INT 88 - APL*PLUS/PC - CREATE CHARACTER SCALAR/VECTOR/MATRIX <64K IN SIZE
    AL = 01h
    AH = rank
    BX = STPTR of the variable to be assigned
    CX = first dimension (if any)
    DX = second dimension (if any)
Return: ES:DI -> object
    CX = number of elements in the object
Note:    each dimension must be 32767 or smaller
SeeAlso: AL=02h,AL=08h,INT C8"APL"
----------88----AL02-------------------------
INT 88 - APL*PLUS/PC - CREATE INTEGER SCALAR/VECTOR/MATRIX <64K IN SIZE
    AL = 02h
    AH = rank
    BX = STPTR of the variable to be assigned
    CX = first dimension (if any)
    DX = second dimension (if any)
Return: ES:DI -> object
    CX = number of elements in the object
Note:    each dimension must be 32767 or smaller
SeeAlso: AL=01h,AL=08h,INT C8"APL"
----------88----AL08-------------------------
INT 88 - APL*PLUS/PC - CREATE FLOATING POINT SCALAR/VECTOR/MATRIX <64K IN SIZE
    AL = 08h
    AH = rank
    BX = STPTR of the variable to be assigned
    CX = first dimension (if any)
    DX = second dimension (if any)
Return: ES:DI -> object
    CX = number of elements in the object
Note:    each dimension must be 32767 or smaller
SeeAlso: AL=01h,AL=02h,INT C8"APL"
----------88----ALF5-------------------------
INT 88 - APL*PLUS/PC - FORCE OBJECT INTO REAL WORKSPACE FROM VIRTUAL
    AL = F5h
    BX = STPTR of object
SeeAlso: INT C8"APL"
----------88----ALF6-------------------------
INT 88 - APL*PLUS/PC - MAKE NAME IMMUNE FROM OUTSWAPPING
    AL = F6h
    BX = STPTR of object
SeeAlso: AL=F7h,AL=F8h,INT C8"APL"
----------88----ALF7-------------------------
INT 88 - APL*PLUS/PC - MAKE NAME ELIGIBLE FOR OUTSWAPPING
    AL = F7h
    BX = STPTR of object
SeeAlso: AL=F6h,AL=F8h,INT C8"APL"
----------88----ALF8-------------------------
INT 88 - APL*PLUS/PC - REPORT WHETHER NAME IS ELIGIBLE FOR OUTSWAPPING
    AL = F8h
    BX = STPTR of object
Return:     BX = 0000h eligible
          0001h not eligible
SeeAlso: AL=F6h,AL=F7h,INT C8"APL"
----------88----ALF9-------------------------
INT 88 - APL*PLUS/PC - DETERMINE NAME STATUS
    AL = F9h
    ES:SI -> name
    CX = length of name
Return: CF set if name ill-formed or already in use
        BX = STPTR if already in symbol table
    CF clear if name is available for use
        BX = 0000h
Note:    does not force the name into the workspace
SeeAlso: AL=FEh,AL=FFh,INT C8"APL"
----------88----ALFC-------------------------
INT 88 - APL*PLUS/PC - DETERMINE IF MEMORY AVAIL WITHOUT GARBAGE COLLECTION
    AL = FCh
    BX = amount of memory needed (paragraphs)
Return: CF clear if memory available
    CF set if a workspace compaction is required
SeeAlso: AL=FDh,INT C8"APL"
----------88----ALFD-------------------------
INT 88 - APL*PLUS/PC - PERFORM GARBAGE COLLECTION AND RETURN AVAILABLE MEMORY
    AL = FDh
Return: BX = number of paragraphs available in workspace
SeeAlso: AL=FCh,INT C8"APL"
----------88----ALFE-------------------------
INT 88 - APL*PLUS/PC - CREATE NAME
    AL = FEh
    ES:SI -> name
    CX = length of name
Return: BX = STPTR of name
    DX = interpreter's data segment
SeeAlso: AL=F9h,AL=FFh,INT C8"APL"
----------88----ALFF-------------------------
INT 88 - APL*PLUS/PC - DETERMINE NAME STATUS
    AL = FFh
    ES:SI -> name
    CX = length of name
Return: CF set if name ill-formed or already in use
        BX = STPTR if already in symbol table
    CF clear if name is available for use
        BX = 0000h
Note:    forces the name into the workspace and makes it immune from outswapping
SeeAlso: AL=F9h,AL=FEh,INT C8"APL"
----------89---------------------------------
INT 89 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8A---------------------------------
INT 8A - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8A---------------------------------
INT 8A - APL*PLUS/PC - PRINT SCREEN
Note:    same as INT 05
SeeAlso: INT 05,INT CA"APL"
----------8B---------------------------------
INT 8B - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8B---------------------------------
INT 8B - APL*PLUS/PC - BEEP
Note:    same as printing a ^G via INT 21/AH=02h
SeeAlso: INT 21/AH=02h,INT CB"APL"
----------8C---------------------------------
INT 8C - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8C---------------------------------
INT 8C - APL*PLUS/PC - CLEAR SCREEN MEMORY
    AX = flag
        0000h do not save display attributes
        0001h save attributes
SeeAlso: INT CC"APL"
----------8D---------------------------------
INT 8D - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8E---------------------------------
INT 8E - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------8F---------------------------------
INT 8F - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------90---------------------------------
INT 90 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------90---------------------------------
INT 90 - APL*PLUS/PC - USED BY PORT 10 PRINTER DRIVER
----------91---------------------------------
INT 91 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------91---------------------------------
INT 91 - IBM TOKEN RING ADAPTER - ???
----------92---------------------------------
INT 92 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------92---------------------------------
INT 92 - Sangoma X.25 INTERFACE PROGRAM
    BX:DX -> control block
----------93---------------------------------
INT 93 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------93---------------------------------
INT 93 - IBM TOKEN RING ADAPTER - ???
----------94---------------------------------
INT 94 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------95---------------------------------
INT 95 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------95---------------------------------
INT 95 - APL*PLUS/PC - DETERMINE R= SPACE
Note:    use only when the R= option is invoked on entering APL
----------96---------------------------------
INT 96 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------97---------------------------------
INT 97 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------98---------------------------------
INT 98 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------99---------------------------------
INT 99 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9A---------------------------------
INT 9A - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9B---------------------------------
INT 9B - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9C---------------------------------
INT 9C - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9D---------------------------------
INT 9D - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9E---------------------------------
INT 9E - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------9F---------------------------------
INT 9F - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A0---------------------------------
INT A0 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A0---------------------------------
INT A0 - APL*PLUS/PC - USED BY APL/GSS*CGI GRAPHICS INTERFACE
SeeAlso: INT 59
----------A1---------------------------------
INT A1 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A2---------------------------------
INT A2 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A3---------------------------------
INT A3 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A4---------------------------------
INT A4 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A4---------------------------------
INT A4 - Right Hand Man API
    function number in AH
Note: Right-Hand Man is a TSR desk-top utility, and only hooks this interrupt
    while popped up
----------A5---------------------------------
INT A5 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A6---------------------------------
INT A6 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A7---------------------------------
INT A7 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A8---------------------------------
INT A8 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------A9---------------------------------
INT A9 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AA---------------------------------
INT AA - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AB---------------------------------
INT AB - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AC---------------------------------
INT AC - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AD---------------------------------
INT AD - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AE---------------------------------
INT AE - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------AF---------------------------------
INT AF - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B0---------------------------------
INT B0 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B1---------------------------------
INT B1 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B2---------------------------------
INT B2 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B3---------------------------------
INT B3 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B370-------------------------------
INT B3 - ZIPKEY - GET VERSION
    AH = 70h
Return: AH = major version
    AL = minor version
    CL = number of states and territories in current database
    DH = year of current database - 1900
    DL = month of current database's file date
Return: AX destroyed
Notes:    if installed, the string "ZIPKEY" is present at offset 75h in the
      interrupt handler's segment, and the byte at 7Bh contains the API
      version number (00h for v1.x, 01h for v2.0)
    ZIPKEY is a resident ZIPCODE database by Eric Isaacson
----------B371-------------------------------
INT B3 - ZIPKEY - CONVERT TWO-LETTER ABBREVIATION TO STATE CODE
    AH = 71h
    BX = abbreviation, in either case (first letter in BL)
Return: CF set on error
        AL = FFh
    CF clear if successful
        AL = ZIPKEY state code
SeeAlso: AH=72h
----------B372-------------------------------
INT B3 - ZIPKEY - CONVERT STATE CODE TO TWO-LETTER ABBREVIATION
    AH = 72h
    BL = ZIPKEY state code
Return: CF set on error
        AX destroyed
    CF clear if successful
        AX = abbreviation, in upper case
SeeAlso: AH=71h,AH=73h
----------B373-------------------------------
INT B3 - ZIPKEY - CONVERT STATE CODE TO STATE NAME
    AH = 73h
    BL = ZIPKEY state code
    ES:DI -> buffer for name
Return: CF set on error
        AX destroyed
    CF clear if successful
        ES:DI points one byte beyond end of name
SeeAlso: AH=72h
----------B374-------------------------------
INT B3 - ZIPKEY - CONVERT ZIPCODE TO ASCII DIGITS
    AH = 74h
    DX = zipcode region (0-999)
    CH = last two digits of zipcode (0-99)
    ES:DI -> buffer
Return: CF set on error
        AX destroyed
    CF clear if successful
        ES:DI points one byte beyond end of digit string
----------B375-------------------------------
INT B3 - ZIPKEY - LOOK UP STATE CODE FOR ZIPCODE
    AH = 75h
    DX = zipcode region (0-999)
    CH = last two digits of zipcode (0-99)
Return: CF set on error (zipcode not found)
        AL = suggested state code, FFh if none
    CF clear if successful
        AL = ZIPKEY state code
        BX = area code (v2.0+)
SeeAlso: AH=76h,AH=79h
----------B376-------------------------------
INT B3 - ZIPKEY - LOOK UP CITY AND STATE FOR ZIPCODE
    AH = 76h
    DX = zipcode region (0-999)
    CH = last two digits of zipcode (0-99)
    ES:DI -> buffer for name
Return: CF set on error
        AL = suggested state code, FFh if none
        ES:DI buffer filled with suggested city name
    CF clear if successful
        AL = ZIPKEY state code
        BX = area code (v2.0+)
        ES:DI points one byte beyond end of name
SeeAlso: AH=75h,AH=78h
----------B377-------------------------------
INT B3 - ZIPKEY - PLAY BACK EXIT KEY FOR ENTRY WITH GIVEN ZIPCODE
    AH = 77h
    DX = zipcode region (0-999)
    CH = last two digits of zipcode (0-99)
    BX = 16-bit BIOS keycode for a defined ZIPKEY alternate exit key
Return: CF set on error
        AX destroyed
    CF clear if successful
        zipcode specification as defined by the BX keystroke is placed in
          keyboard buffer, as if the user had popped up ZIPKEY and exited
          by pressing the key specified by BX
----------B378-------------------------------
INT B3 - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN STATE AND CITY
    AH = 78h
    BL = ZIPKEY state code
    DS:SI -> city name, terminated with 0Dh if complete name, 00h if prefix
Return: BH = number of matching entries (set to 51 if more than 50)
    DX = zipcode region of first match (0-999)
    CL = last two digits of first zipcode in the range (0-99)
    CH = last two digits of last zipcode in the range (0-99)
    AX destroyed
SeeAlso: AH=79h,AH=7Ah
----------B379-------------------------------
INT B3 - ZIPKEY - LOOK UP ZIPCODES FOR A GIVEN CITY
    AH = 79h
    BL = ZIPKEY state code of first state to search
    DS:SI -> city name, terminated with 0Dh if complete name, 00h if prefix
Return:    AL = ZIPKEY state code of first matching state
    BH = number of matching entries (set to 51 if more than 50)
    DX = zipcode region of first match (0-999)
    CL = last two digits of first zipcode in first range (0-99)
    CH = last two digits of last zipcode in first range (0-99)
Note:    to find all matching cities, repeat search with BL set to one more than
      the returned AL
SeeAlso: AH=78h,AH=7Ah
----------B37A-------------------------------
INT B3 - ZIPKEY - FETCH AN ENTRY FROM A PREVIOUS LOOKUP
    AH = 7Ah
    BL = case number (0 to one less than value returned in BH by lookup)
Return: AL = ZIPKEY state code
    DX = zipcode region (0-999)
    CL = last two digits of first zipcode in the range (0-99)
    CH = last two digits of last zipcode in the range (0-99)
SeeAlso: AH=78h,AH=79h
----------B37B-------------------------------
INT B3 - ZIPKEY - GET VALUES NEEDED TO SAVE ZIPKEY CONTEXT
    AH = 7Bh
Return: BL = maximum number of characters for a city name
    BH = ZIPKEY state code for last city-name search
        FFh if none
    CX:DX = internal code identifying last city search
    AX destroyed
SeeAlso: AH=7Ch
----------B37C-------------------------------
INT B3 - ZIPKEY - RESTORE ZIPKEY CONTEXT
    AH = 7Ch
    BL = maximum number of characters for a city name
    BH = ZIPKEY state code for last city-name search
        FFh if none
    CX:DX = internal code returned by AH=7Bh
Return: CF set on error
    CF clear if successful
    AX destroyed
SeeAlso: AH=7Bh
----------B37D-------------------------------
INT B3 - ZIPKEY - REQUEST POP UP
    AH = 7Dh
    BL = index number to simulate pressing a hotkey
        FFh for immediate popup with no playback on return
Return: CF set on error
        AL = FDh already busy with another request
           = FEh illegal function
    CF clear if successful
        AX destroyed
        window popped up and was closed by the user
----------B37E-------------------------------
INT B3 - ZIPKEY - GET NAME OF PRIMARY CITY FOR A ZIPCODE REGION
    AH = 7Eh
    DX = zipcode region (0-999)
    ES:DI -> buffer for name
Return: CF set on error
        AL = FFh region does not exist
    CF clear if successful
        AL = ZIPKEY state code
        ES:DI points one byte beyond end of name
----------B37F-------------------------------
INT B3 - ZIPKEY - ENABLE/DISABLE HOTKEYS
    AH = 7Fh
    BL = function
        00h turn off hotkeys
        01h turn on hotkeys
        02h return hotkey status
        03h toggle hotkey status
Return: AL = hotkey status
        00h off
        01h on
----------B380-------------------------------
INT B3 - ZIPKEY v2.0+ - DETERMINE STATE FOR AREA CODE
    AH = 80h
    BX = telephone area code (decimal)
Return: CF clear if successful
        AL = ZIPKEY state code
        DX = first ZIP region for state (03E8h if Canada)
        CX = number of ZIP regions in state
    CF set on error
        AL = FFh
        DX = 03E9h
----------B4---------------------------------
INT B4 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B5---------------------------------
INT B5 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B6---------------------------------
INT B6 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B7---------------------------------
INT B7 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B8---------------------------------
INT B8 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------B9---------------------------------
INT B9 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BA---------------------------------
INT BA - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BB---------------------------------
INT BB - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BC---------------------------------
INT BC - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BD---------------------------------
INT BD - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BE---------------------------------
INT BE - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------BF---------------------------------
INT BF - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C0---------------------------------
INT C0 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C1---------------------------------
INT C1 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C2---------------------------------
INT C2 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C3---------------------------------
INT C3 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C4---------------------------------
INT C4 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C5---------------------------------
INT C5 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C6---------------------------------
INT C6 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C6---------------------------------
INT C6 - APL*PLUS/PC - IDENTICAL TO INT 86
Note:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
----------C7---------------------------------
INT C7 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C7---------------------------------
INT C7 - APL*PLUS/PC - ???
----------C8---------------------------------
INT C8 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C8---------------------------------
INT C8 - APL*PLUS/PC - IDENTICAL TO INT 88
Note:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
SeeAlso: INT 88"APL"
----------C9---------------------------------
INT C9 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------C9---------------------------------
INT C9 - APL*PLUS/PC - ???
Note:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
----------CA---------------------------------
INT CA - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CA---------------------------------
INT CA - APL*PLUS/PC - PRINT SCREEN
Note:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
SeeAlso: INT 8A"APL"
----------CB---------------------------------
INT CB - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CB---------------------------------
INT CB - APL*PLUS/PC - BEEP
Notes:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
    same as printing a ^G via INT 21/AH=02h
SeeAlso: INT 8B"APL"
----------CC---------------------------------
INT CC - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CC---------------------------------
INT CC - APL*PLUS/PC - CLEAR SCREEN MEMORY
    AX = flag
        0000h do not save display attributes
        0001h save attributes
Note:    STSC moved its interrupts from 86h-8Ch to C6h-CCh, but did not delete
      the older interrupts
SeeAlso: INT 8C"APL"
----------CD---------------------------------
INT CD - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CD---------------------------------
INT CD - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------CE---------------------------------
INT CE - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CE---------------------------------
INT CE - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------CF---------------------------------
INT CF - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------CF---------------------------------
INT CF - APL*PLUS/PC - DEFAULT LOW-RESOLUTION TIMER FOR QUAD MF FUNCTION
----------D0---------------------------------
INT D0 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D0---------------------------------
INT D0 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D1---------------------------------
INT D1 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D1---------------------------------
INT D1 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D2---------------------------------
INT D2 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D2---------------------------------
INT D2 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D3---------------------------------
INT D3 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D3---------------------------------
INT D3 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D4---------------------------------
INT D4 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D4---------------------------------
INT D4 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D4---------------------------------
INT D4 - PC-MOS/386 - API
----------D5---------------------------------
INT D5 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D5---------------------------------
INT D5 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D6---------------------------------
INT D6 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D6---------------------------------
INT D6 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D7---------------------------------
INT D7 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D7---------------------------------
INT D7 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D8---------------------------------
INT D8 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D8---------------------------------
INT D8 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------D9---------------------------------
INT D9 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------D9---------------------------------
INT D9 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------DA---------------------------------
INT DA - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DA---------------------------------
INT DA - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------DB---------------------------------
INT DB - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DB---------------------------------
INT DB - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------DC---------------------------------
INT DC - PC/370 v4.1- - API
SeeAlso: INT 60"PC/370"
----------DC---------------------------------
INT DC - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DC---------------------------------
INT DC - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------DD---------------------------------
INT DD - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DD---------------------------------
INT DD - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
----------DE---------------------------------
INT DE - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DE---------------------------------
INT DE - APL*PLUS/PC - ???
Note:    appears to be the same as INT 16
----------DF---------------------------------
INT DF - Victor 9000 - SuperBIOS
----------DF---------------------------------
INT DF - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------DF---------------------------------
INT DF - APL*PLUS/PC - SAME AS INT 10
SeeAlso: INT 10
----------E0---------------------------------
INT E0 - CP/M-86 function calls
----------E0---------------------------------
INT E0 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E0---------------------------------
INT E0 - APL*PLUS/PC - RESTIME HIGH-RESOLUTION TIMER FOR QUAD MF FUNCTION
----------E0---------------------------------
INT E0 - "Micro-128" virus - ???
SeeAlso: INT 70"virus"
----------E1---------------------------------
INT E1 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E1---------------------------------
INT E1 - PC Cluster Disk Server Information
SeeAlso: INT E2
----------E2---------------------------------
INT E2 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E2---------------------------------
INT E2 - PC Cluster Program
----------E3---------------------------------
INT E3 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E40005-----------------------------
INT E4 - Logitech Modula v2.0 - MonitorEntry
    AX = 0005h
    BX = priority
SeeAlso: AX=0006h
----------E40006-----------------------------
INT E4 - Logitech Modula v2.0 - MonitorExit
    AX = 0006h
SeeAlso: AX=0005h
----------E4---------------------------------
INT E4 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E5---------------------------------
INT E5 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E6---------------------------------
INT E6 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E7---------------------------------
INT E7 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E8---------------------------------
INT E8 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------E9---------------------------------
INT E9 - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EA---------------------------------
INT EA - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EB---------------------------------
INT EB - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EC---------------------------------
INT EC - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EC---------------------------------
INT EC - used by Alloy NTNX
----------EC---------------------------------
INT EC - Exact - RUNTIME INTERFACE MULTIPLEXOR
    AX = function number (0000h to 0140h)
    STACK:    DWORD address to return to
        any arguments required by function
Return: STACK:    return address popped, but otherwise unchanged
Notes:    this is the interface from applications to the runtime system by Exact
      Automatisering B.V. of the Netherlands.  By using this interrupt,
      it can provide DLL-style capabilities under MSDOS.
    the interrupt handler removes the return address and flags placed on
      the stack by the INT EC, then jumps to the appropriate function
----------ED---------------------------------
INT ED - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EE---------------------------------
INT EE - used by IBM ROM BASIC while in interpreter
Notes:    called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
    BASIC.COM/BASICA.COM do not restore vector on termination
----------EF---------------------------------
INT EF - BASIC - ORIGINAL INT 09 VECTOR
Note:    BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT F0"BASIC"
----------EF----CX0473-----------------------
INT EF - GEM - INTERFACE
    CX = 0473h
    DS:DX -> GEM parameter block
----------F0---------------------------------
INT F0 - BASICA.COM, GWBASIC, compiled BASIC - ORIGINAL INT 08 VECTOR
Note:    BASICA.COM does not restore vector on termination
SeeAlso: INT EF"BASIC"
----------F1---------------------------------
INT F1 - reserved for user interrupt
----------F1---------------------------------
INT F1 - SPEECH.COM - CONVERT TEXT STRING TO SPEECH
    DS:BX -> '$'-terminated text string
Note:    SPEECH.COM is a resident text-to-speech converter by Douglas Sisco
----------F1---------------------------------
INT F1 - Andy C. McGuire SPEECH.COM/SAY.COM
----------F2---------------------------------
INT F2 - reserved for user interrupt
----------F2---------------------------------
INT F2 - Andy C. McGuire SPEECH.COM/SAY.COM
----------F3---------------------------------
INT F3 - reserved for user interrupt
----------F4---------------------------------
INT F4 - reserved for user interrupt
----------F4---------------------------------
INT F4 - DoubleDOS - GIVE UP REST OF CURRENT CLOCK TICK AND ALL OF NEXT TICK
SeeAlso: INT 21/AH=EEh"DoubleDOS",INT FE"DoubleDOS"
----------F5---------------------------------
INT F5 - reserved for user interrupt
----------F5---------------------------------
INT F5 - DoubleDOS - ???
----------F6---------------------------------
INT F6 - reserved for user interrupt
----------F6---------------------------------
INT F6 - DoubleDOS - ???
----------F7---------------------------------
INT F7 - reserved for user interrupt
----------F7---------------------------------
INT F7 - DoubleDOS - ???
----------F8---------------------------------
INT F8 - 10 ms INTERVAL TIMER (TANDY???)
----------F8---------------------------------
INT F8 - DoubleDOS - ???
----------F9---------------------------------
INT F9 - reserved for user interrupt
----------F9---------------------------------
INT F9 - DoubleDOS - ???
----------FA---------------------------------
INT FA - USART READY (RS-232C) (TANDY???)
----------FA---------------------------------
INT FA - DoubleDOS - TURN OFF TIMESHARING
SeeAlso: INT 21/AH=EAh"DoubleDOS",INT FB"DoubleDOS"
----------FB---------------------------------
INT FB - USART Rx READY (keyboard) (TANDY???)
----------FB---------------------------------
INT FB - DoubleDOS - TURN ON TIMESHARING
SeeAlso: INT 21/AH=EBh"DoubleDOS",INT FA"DoubleDOS"
----------FC---------------------------------
INT FC - reserved for user interrupt
----------FC---------------------------------
INT FC - DoubleDOS - GET CURRENT SCREEN BUFFER ADDRESS
Return: ES = segment of display buffer
Note:    the display buffer may be moved if multitasking is enabled
SeeAlso: INT 21/AH=ECh"DoubleDOS",INT FB"DoubleDOS"
----------FD---------------------------------
INT FD - reserved for user interrupt
----------FD---------------------------------
INT FD - DoubleDOS - ???
----------FE---------------------------------
INT FE - AT/XT286/PS50+ - destroyed by return from protected mode
----------FE---------------------------------
INT FE - DoubleDOS - GIVE UP TIME
    AL = number of 55ms time slices to give away
SeeAlso: INT 21/AH=EEh"DoubleDOS",INT F4"DoubleDOS"
----------FF---------------------------------
INT FF - AT/XT286/PS50+ - destroyed by return from protected mode
----------FF---------------------------------
INT FF - Z100 - WARM BOOT
---------------------------------------------
Please redistribute the following files unmodified as a group, in a pair of
archives named INTER27A and INTER27B (preferably the original authenticated
PKZIP archives):
    INTERRUP.1ST    the read-me file, containing credits, availability info
    INTERRUP.A    INT 00 through INT 14
    INTERRUP.B    INT 15 through INT 1F
    INTERRUP.C    INT 20 through INT 2E
    INTERRUP.D    INT 2F through INT 5F
    INTERRUP.E    INT 60 through INT FF
    INTERRUP.PRI    a brief introduction to interrupts
    INTPRINT.COM    a simple formatter that also generates a list summary
    INTPRINT.DOC    instructions for INTPRINT
    INTPRINT.C    source code for INTPRINT
    MEMORY.LST    format of the BIOS data area
    INT2QH.*    program to convert list into QuickHelp database
    INT2GUID.*    convert list into TurboPower GUIDE or POPHELP database
This compilation is Copyright (c) 1989, 1990, 1991 Ralf Brown
---------------------------------------------
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