Int 60  - Excelan LAN Workplace For DOS 3.5 - API                          [N]

   ES:BX -> request packet

Return: request packet updated

Notes: this interrupt is also supported by Beame&Whiteside's BWLWP35 shim,
     which was used in creating this description
   the installation check consists of testing for the WORD 4142h ('AB')
     immediately preceding the interrupt handler
BUG:   because BWLWP35 range-checks only the low byte of the function number,
     and has a fencepost error even in that test, functions 000Bh and
     XX01h-XX0Bh (XX nonzero) branch to random locations

See Also: INT 2F/AX=7A40h

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

Values for error code:
 0000h successful
 002Dh invalid function
 0050h ???

Format of ??? record:
Offset Size    Description
 00h   WORD    offset of ???
 02h  4 BYTEs  ???
 06h   DWORD   IP address (big-endian)
 0Ah  6 BYTEs  physical address (big-endian)
   ???