ASR33IOL, F$R1

* O070-001-H001 (ASR33IOL) DRAWING NO. 41286032-001-01 PAGE 10

0451 * BLANK TAPE ('00O OR '200) AND DEL ARE IGNORED. TAB 0452 * CHARACTERS ('134 OR '334) PROCESS SPACE CHARACTERS ('240) TO 0453 * A PREDETERMINED POSITION. CONTROL H ('210) CHARACTER 0454 * DELETES THE PREVIOUS CHARACTER AND LEFT-ARROW ('137 OR '337) 0455 * DELETES THE CURRENT RECORD ENTIRELY AND PROCESSES THE NEXT 0456 * RECORD. 0457 * A CARRIAGE RETURN TERMINATES THE RECORD. ONLY TEXT 0458 * CHARACTERS ARE RELATED TO THE CONTENTS OF THE BUFFER. OTHER 0459 * CHARACTERS ARE FOR CONTROL ONLY. THE BUFFER LENGTH WITH 0460 * TAB POSITIONS IS PRE-SET (SEE C$CC, C$TC AND C$TT) BUT CAN BE 0461 * INITIALISED USING THE INITIALISATION MODULE (SEE C$IN). 0462 * CHARACTERS IN EXCESS OF THE BUFFER LENGTH ARE DISCARDED AND 0463 * EXCESS TAB CHARACTERS ARE CHANGED TO SPACES. THE BUFFER IS 0464 * POST FILLED WITH SPACES FOR INPUT. 0465 * 0466 * OBJECT:* 0467 * 0468 * SOH('201), DATA WORDS (UP TO 60), DC3, DEL 0469 * 0470 * THE DATA WORDS ARE IN INVISIBLE FORMAT. 0471 * A CHECKSUM VALUE WHICH IS THE EXCLUSIVE OR OF ALL THE DATA 0472 * WORDS IS CALCULATED DURING OBJECT READ BUT ONLY ACTIONED 0473 * BY I$AB. 0474 * 0475 * END OF TEXT RECORD: 0476 * 0477 * END OF TEXT ('003 OR '203), DC3, DEL 0478 * 0479 * NOTE THAT AN END OF TEXT CHARACTER IN ANY CHARACTER POSITION 0480 * WILL CAUSE THE END OF TEXT RETURN TO BE TAKEN. 0481 * 0482 * 0483 * ASR LISTING FORMAT IS SET AT 72 LINES PER PAGE OF WHICH 60 ARE 0484 * AVAILABLE FOR LISTING INCLUDING HEADING EXCEPT UNDER FORTRAN 0485 * CONTROL WHEN PAGENATION IS ACTIONED BY THE CALLING PROGRAM. 0486 * 0487 * PARITY IS DETERMINED BY THE INPUT AND OUTPUT PARITY ROUTINES USED. 0488 * 0489 * 0490 * 0491 EJCT