IBM 5150 PC Technical Reference (6025005, August, 1981) (PDF)

lOC OBJ LINE SOURCE
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E729
E72' 1704
E7lS 0003
E72D eOOl
E72:F CODO
E731 6000
£733 3000
E735 1800
E737 DeaD
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E739 Fa
£73A IE
E73S 52
E73e 56
E730 57
E73£ 51
E7l' 88f2
n41 DlE6
E743 8ol4000
E746 eEDA
E748 88940000
E74e 0802:
E74E 7416
E7S0 OA£4
E752 7418
E7S4 FEee
£756 744£
E758 FEte
E7SA 7503
E7St £96900
1428 ON RETURN, CONDITIONS SET AS IN CALL TO como STATUS UH=3J
1429 (AH'=1 SEND THE CHARACTER IN (AL) aVER THE cotI1O UHE
1430 (AU REGISTER IS PRESERVED
1431 ON EXIT. BIT 7 OF AH IS SET IF THE ROUTINE: WAS UNA6lE TO
1432 TO TRANSMIT THE BYTE OF DATA OYER THE LINE. THE
1431 REMAINDER Of AH IS SET AS IN A STATUS REquEST.
1434 REFElECTING THE CURRENT STATUS Of THE LINE.
1435 (AM)=! RECEIVE A CHARACTfR IN fAll FRon caMMO LINE BEFORE
1436 RETURNING TO CA LLER
1437 ON EXIT, AM HAS THE CURRENT LINE STATUS. AS SET BY THE
1438 THE STATUS ROUTINE. EXCEPT THAT THE ONLY BITS
1439 LEfT ON ARE THE ERROR BITS f7.4.3.2.1)
1440 IN THIS CASE. THE TIME OUT BIT INDICATES DATA SET
1441 READY WAS NOT RECEIVED.
1442: THUS. AH IS HON ZERO ONLY WHEN AN ERROR OCctmRED.
1443 UHl:3 RETURN THE COMMa PORT STATUS IN (AX)
1444 AH CONTAINS THE LINE CONTROL STATUS
1445 BIT 7 = TIME OUT
1446 BIT 6 = TRANS SHIfT REGISTER EMPTY
1447 BIT 5 = TRAN HOLOIHS REGISTER EMPTY
14"'8
BIT 4 = BREAK DETECT
1449 BIT 3 = FRAMING ERROR
1450 BIT 2: = PARITY ERROR
1451 BIT 1 : OVERRUN ERROR
1452: BIT 0 = DATA READY
1453 AL CONTAIUS THE HOOE" STATUS
1454 BIT 7 = RECEVEO LINE SIGNAL DETECT
1455 BIT 6 = RING INDICATOR
1456 Bn 5 = DATA SET READY
1457 BIT 4 = CLEAR TO SEND
14sa
BIT 3 = DELTA RECEIVE LINE SIGNAL DETECT
1459 BIT 2 = TRAILING EDGE RING DETECTOP
1460 BIT 1 = DELTA DATA SET READY
1461 BIT 0 = DELTA CLEAR TO SENO
1462
1463 COX) = PARAMETER INDICATING WHICH RSZ32 CARD fO,l ALLOWED)
1464 ; DATA AREA RS232_BASE CONTAINS THE BASE ADDRESS OF THE 8"50 ON THE CARD
1465 LOCATION 400H CONTAINS UP TO 4 RS232 ADDRESSES POSSIBLE
1466 ~OVTPUT
1467 AX MODIfIED ACCORDING TO PARNS OF CALL
1468 ALL OTHERS UNCHANGED
1469 1-------------------------------------------­
1470 ASSUHE CS:CODE.DS:DATA
1471 Al LABEL WORD
1472 DW 1047 110 BAUD ; TABLE Of INIT VALUE
1471 OW 768 150
1474 ow 384 300
1475 OW 192 i 600
1476 ow ,. i I~OO
1477 ow 43 i 2400
1476 ow Z4 i 4800
1479 ow 12 i 9600
1480
llt81 RS232_IO PRDC FA.
1482
1483 1------ VECTOR TO API'