Int 6A/AH=D0h/DH=FFh

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DECnet DOS LOCAL AREA TRANSPORT - OPEN SESSION

AH = D0h
DH = FFh
AL = password flag
FFh no password
0Fh password at ES:DI
ES:BX -> LAT session control block (see #03727)
ES:DI -> 16-byte blank-padded password (optional)

Return:
AH = 00h success DL = handle

See Also: AX=D000h

Format of LAT Session Control Block: Offset Size Description (Table 03727) 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 ---LAT v???--- 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 259N BYTEs buffers

Note: Set post routines to 0000h:0000h if polled operation will be used ---LAT v4.1.17--- 48h WORD session state (LAT driver use) 4Ah BYTE local credits (LAT driver use) 4Bh DWORD -> VCB (LAT driver use) 4Fh WORD backward slot (LAT driver use) 51h WORD forward slot (LAT driver use) 53h BYTE remote slot ID (LAT driver use) 54h BYTE local slot ID (LAT driver use) 55h BYTE slot byte count (LAT driver use) 56h BYTE remote credits (LAT driver use) 57h 255 BYTEs transmitted data slot 156h BYTE number of receive data slots (4 recommended) 157h BYTE number of occupied slots 158h BYTE index of next receive slot to use 159h BYTE index of current receive slot 15Ah WORD pointer to first received character 15Ch N WORDs pointers to receive slots (buffers); each is 259 bytes 259N BYTEs buffers

Note: Set post routines to 0000h:0000h if polled operation will be used

Category: Network - Int 6Ah - D

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