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/ 17 TTY (TELETYPE) /DEVICE DEPENDENT CODE FOR PS/8 MONITOR /THESE ARE CONDITIONAL PARAMETERS. SEE INTRODUCTORY COMMENTS. IFNDEF DIRECT <DIRECT=0> /"DON'T REWRITE DIRECTORY" FLAG IFNDEF NOHSPT <NOHSPT=0> /"NO HIGH-SPEED PAPER TAPE" FLAG IFNDEF RF08 <RF08=0> IFNDEF LP08 <LP08=1> IFNDEF LINCTAPE <LINCTAPE=0> IFNDEF LINCSYS <LINCSYS=0> IFNDEF RK8 <RK8=0> IFNDEF DF32 <DF32=0> IFNDEF DECTAPE < IFZERO DF32+RF08+RK8+LINCSYS <DECTAPE=1> IFNZRO DF32+RF08+RK8+LINCSYS <DECTAPE=0> > SBLOCK=7776 /RANDOM DEFINITIONS FROM MAIN ASSEMBLY MFREE=70 /FIRST FREE BLOCK ON THE SYSTEMS DEVICE /(FIELD 1) SOFSET=7747 /NOT REALLY NECESSARY! FIELD 1 *AASDNAME /SYSTEM DEVICE NAME TABLE /THE ENTRIES ARE THE TWO WORD SUM OF THE SIXBIT FOR THE SYSTEM /DEVICES, WITH THE HIGH ORDER BIT FORCED ON /CHANGES IN SDNAME MUST BE ACCOMPANIED BY CHANGES IN /SDVHND. KEEP CORRESPONDENCE ONE TO ONE. SDNAME, 4631 /SYS 5723 /DSK 5524 /TTY 4020 /LPT 4604 /DTA0 4605 /DTA1 AASDVHND=766 /DEPENDS ON PS8 ASSEMBLY *AASDVHND /SYSTEM HANDLER TABLE /CONTENTS: /BIT 0 - ON IF THE HANDLER IS A TWO-PAGE HANDLER /BITS 1-4 - OFFSET FROM "DVHORG-1" OF RECORD CONTAINING HANDLER /BITS 5-11 - ENTRY POINT OF HANDLER RELATIVE TO LOADING ADDRESS /EACH DEVICE HANDLER HAS AN ENTRY IN SDVHND. THE EQUATION /USED IN EACH ENTRY IS: OFFSET *200+ENTRY POINT-ASSEMBLY POINT /THE OFFSET IS BITS 1-4. /FOR A TWO PAGE HANDLER, ADD 4000. SDVHND, 0 /SYSTEM HANDLER HAD BETTER BE RESIDENT /OR PAGE 17600 IS PROBABLY BLOWN IFZERO LINCSYS+DECTAPE-2 <5^200+DTA1-7200 /FOR MULTIPLE DECTAPE SYSTEMS,DTA1=DSK> IFNZRO LINCSYS+DECTAPE-2 <0 /OTHERS,DSK=SYS> 2^200+TTY-7000 4^200+LPT-6200 5^200+DTA0-7200 5^200+DTA1-7200 5^200+DTA2-7200 5^200+DTA3-7200 5^200+DTA4-7200 5^200+DTA5-7200 5^200+DTA6-7200 5^200+DTA7-7200 1^200+PTP-6400 1^200+PTR-6400 3^200+CDR-5600+4000 /TWO PAGE HANDLER IFNZRO DECTAPE <SYSD=4160> IFNZRO LINCSYS <SYSD=4170> IFNZRO RF08 <SYSD=RF08^10+4050> IFNZRO RK8 <SYSD=4050> IFNZRO DF32 <SYSD=DF32^10+4110> DTADCB=LINCTAPE^10+4160 /4160 OR 4170 FIELD 0 /NOTE:RBFLAG MUST BE AT LOC. 20 OF MAIN ASSEMBLY!!!! IFNZRO DIRECT <*20; 1 /DON'T REWRITE DIRECTORY OR ABSLDR> /DEVICE CONTROL BLOCK TABLE - ONE WORD PER DEVICE /BIT 0 - 1 IF FILE STRUCTURED DEVICE /BIT 1 - 1 IF READ ONLY DEVICE /BIT 2 - 1 IF WRITE ONLY DEVICE /BITS 3-8 - THE DEVICE TYPE /0 TELETYPE /1 HIGH SPEED READER /2 HIGH SPEED PUNCH /3 CARD READER (CR8/I) /4 LINE PRINTER /BITS 9-11 - FLAG FOR WHETHER AN OUTPUT FILE IS CURRENTLY OPEN *7560 DCB, SYSD;SYSD;0;1040;DTADCB;DTADCB;DTADCB;DTADCB DTADCB;DTADCB;DTADCB;DTADCB;1020;2010;2030 IFZERO DECTAPE+LINCSYS-2 <*7450;0 /USE TAPE 1 AS DSK> IFNZRO DECTAPE+LINCSYS <*7453;7607 /DTA0 IS RESIDENT> /THE MAJOR FUNCTION OF CONFIG FOLLOWS: WRITE THE DEVICE /HANDLER RECORDS.NOTE THAT LOC. 0 CONTAINS 7607, OR THE SYSTEM /DEVICE HANDLER ENTRY POINT. /SYSTEM GENERATION STARTS AT LOC. 4000 AND CONTINUES THROUGH /THIS CODE. *4200 WRDEVH, 0 /SUBR TO WRITE OUT DEVICE HANDLER RECORDS WRITE=JMS I 0 DVHORG=16 WRITE; 4301; 5600;DVHORG+2; JMP BERR /CDR AND LPT HANDLERS WRITE; 4100; 7000;DVHORG+1; JMP BERR /TTY HANDLER WRITE; 4100; 7200;DVHORG+4; JMP BERR /DTA HANDLERS WRITE; 4100; 6400;DVHORG+0; JMP BERR /PTR & PTP HANDLERS ISZ WRDEVH BERR, JMP I WRDEVH *5600 > *7000 /TELETYPE HANDLER - NOT VERY INTELLEGENT. /ONLY RECOGNIZES ^Z AND ^C ON INPUT /AND ^C AND ^O ON OUTPUT /OH WELL, WHAT CAN YOU EXPECT IN ONE PAGE. / THE LOGIC IS VERY SIMILIAR TO THE PTR AND PTP HANDLERS. TTY360, 360 /MUST BE FIRST LOC ON PAGE! TTY, 0 TT7600, 7600 RDF TAD TTYCIF DCA TTYXIT /SAVE RETURN FIELD TAD I TTY AND TT70 TAD TTCDF DCA TTYCDF /DATA FIELD OF BUFFER TAD I TTY AND TT7700 CLL RAL /READ/WRITE IN LINK, PAGE COUNT IN AC 0-4 SZA /PROTECT LINK CIA /WHILE COMPLEMENTING AC DCA TTYWC ISZ TTY TAD I TTY DCA TTYCA /SAVE BUFFER ADDRESS ISZ TTY ISZ TTY TTYLP, SNL CLA JMP TTYGLP /ZER LINK MEANS READ JMS TTYTST /TEST FOR ^C TAD TTYM14 /-203-14=-217 =-"^O" SNA CLA JMP TTYCTO TAD I TTYCA /CHARACTER 1 IS LOW ORDER 8 BITS OF WORD 1 JMS TTYPCH AND TT7400 DCA TTYGCH ISZ TTYCA TT7400, 7400 TAD I TTYCA /CHARACTER 2 IS LOW ORDER 8 BITS OF WORD 2 JMS TTYPCH AND TT7400 CLL RTR RTR TAD TTYGCH RTR RTR /CHARACTER 3 IS HIGH ORDER 4 BITS OF WORDS 1 AND 2 JMS TTYPCH /WILL SET LINK ON! /AC IS NON-ZERO HERE BUT WE DON'T CARE TTLOOP, ISZ TTYCA TT70, 70 ISZ TTYWC ISZ TTYWC JMP TTYLP TTYRTN, TAD TTYCDF CLL CIA SNL CLA ISZ TTY /SKIP PAST ERROR RETURN TTYXIT, HLT /RESTORE CALLING FIELDS RAL JMP I TTY TTYPCH, 0 TAD TTM232 SNA JMP TTYRTN TAD TTY232 JMS TTPRNT JMP I TTYPCH TTYTST, 0 TTYCDF, 0 TAD TTY200 KRS /TEST FOR ^C WITH FLAG UP TAD TTM203 KSF CLA IAC SZA /YES..BACK TO MONITOR JMP I TTYTST TTYCIF, CDF CIF 0 JMP I TT7600 TTPRNT, 0 TLS TSF JMP .-1 JMP I TTPRNT TTYCA, 0 TTYWC, 0 TTCDF, CDF 0 /FOLLOWING CODE READS TTY AND PACKS IN BUFFER. TTYGLP, JMS TTYGCH DCA I TTYCA JMS TTYGCH DCA TTYPCH JMS TTYGCH RTL RTL DCA TTYGCH TAD TTYGCH AND TT7400 TAD I TTYCA DCA I TTYCA TAD TTYGCH TTY200, AND TTY360 CLL RTL RTL TAD TTYPCH ISZ TTYCA DCA I TTYCA JMP TTLOOP TTYGCH, 0 TAD TTYCDF TT7700, SMA CLA JMP I TTYGCH ISZ TTYTST JMP TTYKSF TAD TTY212 JMP TTECHO TTYKSF, KSF JMP .-1 JMS TTYTST TAD TTM27 SNA /IS IT A ^Z? DCA TTYCDF /YES - SET END-OF-FILE FLAG TAD TTY14 DCA TTYTST /TTYTST=-1 IF CARRIAGE RETURN KRB TTECHO, JMS TTPRNT /ECHO THE INPUT CHARACTER JMP I TTYGCH TTY232, 232 /THIS CAN BE OPTOMIZED OUT! TTY212, 212 TTY14, 14 TTM203, -203 TTM27, -27 TTYM14, -14 TTM232, -232 TTYCTO, 6032 JMP TTYRTN IFZERO LINCTAPE <