F4-IOS

* NAME: F4-IOS DOC 41285251000 REV C PAGE 4

0151 * 1= PAPERTAPE PUNCH 0152 * 2= ASR 33/35 PUNCH 0153 * 3= NOT USED 0154 * 4= MAGNETIC TAPE UNIT NO. 2 0155 * 5-7= NOT USED 0156 * 0157 * FOR BINARY OUTPUT LEADER AND TRAILER ARE PROVIDED FOR THE 0158 * PAPERTAPE PUNCH BUT NOT FOR THE ASR 33/35 PUNCH. ALSO 0159 * THE PAPERTAPE PUNCH IS TURNED ON AND OFF UNDER PROGRAM 0160 * CONTROL WHEREAS THE ASR 33/35 PUNCH REQUIRES MANUAL CONTROL. 0161 * 0162 * 0163 * FOLLOWING COMPLETION OF A COMPILATIUN 'END OF JOB' IS TYPED ON TRE 0164 * ASR AND THE PROGRAM HALTS DISPLAYING THE KEYWORD IN THE A-REGISTER. 0165 * TO BEGIN A NEW COMPILATLION, RESET THE A-REGISTER IF NECESSARY AND 0166 * PRESS 'START'. 0167 * 0168 * IF SENSE SWITCH 3 IS SET DURING A COMPILATION THE COMPUTER WILL 0169 * HALT BEFORE READING THE NEXT SOURCE RECORD, THE KEYWORD WILL BE 0170 * DISPLAYED IN THE A-REGISTER. THIS MAY BE CHANGED AS REQUIRED. 0171 * THE COMPILATION WILL BE CONTINUED WHEN 'START' IS PRESSED. IT 0172 * SHOULD BE NOTED THAT NO ATTEMPT IS MADE TO INITIALISE NEW DEVICES. 0173 * 0174 * 0175 * THE FOLLOWING INPUT/OUTPUT ROUTINES ARE CALLED BY F4-IOS:- 0176 * 0177 * CALLING 0178 * DESCRIPTION: SEQUENCE: ARGUMENT: 0179 * 0180 * INPUT - ASR CALL I$AA 0181 * DAC BUFFER ADDRESS 0182 * JMP END OF FILE, READ NEXT RECORD 0183 * 0184 * INPUT - CARD READER CALL I$CA 0185 * DAC BUFFER ADDRESS 0186 * JMP END OF FILE, READ NEXT RECORD 0187 * 0188 * INPUT - PAPER TAPE CALL I$PA 0189 * READER DAC BUFFER ADDRESS 0190 * JMP END OF FILE, READ NEXT RECORD 0191 * 0192 * INPUT - MAGNETIC TAPE CALL I$MA 0193 * DAC BUFFER ADDRESS 0194 * DEC 40 WORD COUNT 0195 * DEC 1 UNIT NUMBER 0196 * JMP REPORT UNREADABLE RECORD 0197 * JMP REPORT END OF TAPE 0198 * JMP END OF FILE, READ NEXT RECORD 0199 * 0200 * CONVERT TO ISO CODE CALL C$6TO8