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Int 6A Fn D0 - Decnet DOS Local Area Transport - Open Session [N]
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
See Also: 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
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Written by Dave Pearson