Int 60

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Excelan LAN Workplace for DOS 3.5 - API

ES:BX -> request packet (see #03272)

Return:
Request packet updated

InstallCheck:
Test for the WORD 4142h ('AB') immediately preceding the interrupt handler

Note: This interrupt is also supported by Beame&Whiteside's BWLWP35 shim, which was used in creating this description

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 Excelan request packet: Offset Size Description (Table 03272) 00h 12 BYTEs ??? 0Ch WORD (ret) error code (see #03273) 0Eh DWORD -> FAR function for ??? 12h WORD function number 0001h ??? 0002h NOP 0003h NOP 0004h NOP 0005h ??? 0006h get ??? record 0007h NOP 0008h reset ??? 0009h NOP 000Ah set ???. ??? ---function 01h--- 20h BYTE (call) subfunction (32h-3Bh) 3Bh non-blocking I/O request (will be tested every clock tick) 21h BYTE (ret) error code 00h successful 09h invalid connection number 2Ah bad connection type 45h ??? ---function 01h, subfunction 32h--- 3Ah WORD (call) connection type (01h stream, 02h datagram) ---function 01h, subfunction 34h--- 26h WORD (call) ??? 28h WORD (call) ??? 2Ah WORD (call) ??? ---function 01h, subfunction 35h--- 1Ah WORD (call) connection number??? 26h WORD (ret) ??? ---function 01h, subfunction 36h--- 1Ah WORD (call) connection number??? 38h WORD ??? ---function 01h, subfunction 37h--- 24h WORD (ret) ??? 26h WORD (ret) ??? ---function 01h, subfunction 38h--- 1Ah WORD (call) connection number??? ---function 01h, subfunction 3Ah--- 22h WORD (call) ??? 667Eh ??? 667Fh ??? 24h BYTE (call 667Eh) ??? 24h WORD (return 667Fh) ??? ---function 01h, subfunction 3Bh--- 0Eh DWORD (call) -> function to invoke for I/O or 0000h:0000h function called with AX = 0000h

STACK:
DWORD -> request packet WORD 0000h should return STACK unchanged 1Ah WORD (call) connection number??? 21h BYTE (ret) set to 01h when I/O becomes possible 22h BYTE (call) direction (00h write, 01h read) 34h DWORD (ret) -> next pending request packet ---function 05h--- 1Eh WORD (call) ??? 20h WORD (call) ??? 34h DWORD (call) -> ??? ---function 06h--- 16h DWORD (call) -> buffer for ??? record (see #03274) 1Ah WORD (call) number of bytes to copy 22h WORD (ret) number of bytes transferred ---function 08h--- 14h WORD (ret) ??? (0001h) ---function 0Ah--- 16h DWORD (call) -> WORD ??? 1Ch WORD (call) must be 000Ah for BWLWP35

(Table 03273) Values for Excelan error code: 0000h successful 002Dh invalid function 0050h ???

Format of ??? record: Offset Size Description (Table 03274) 00h WORD offset of ??? 02h 4 BYTEs ??? 06h DWORD IP address (big-endian) 0Ah 6 BYTEs physical address (big-endian). ???

Category: Network - Int 60h - E

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