*20 /PROGRAM MAGSPY /PDP-12 ASCII SOURCE /AUTHOR: C.A.JOHNSON (DEC) CLR MSC 1 /INITIAL DISPLAY SET I 17 1300 JMP QAINIT TEXT4 ANS4 JMP .+2 JMP START XSK I 17 JMP QARFSH START, JMP QAINIT TEXT1 ANS1 JMP QARFSH /RECOVER USERS OPTION LDH ANS1+4000 SAE I 63 JMP .+2 /NOT 3 JMP MONIT SAE I 62 JMP .+2 JMP BEGIN /SHOW QA3 /EXPLANATION DISPLAY JMP QAINIT TEXT2 ANS2 JMP QARFSH /IGNORE ANSWER /BN, UNIT SELECT DISPLAY BEGIN, JMP QAINIT TEXT3 ANS3 JMP QARFSH JMP OVRTEX TEXT1, TEXT >FDO ?<1 F 1 EXPLAIN PROGRAM F 2 BEGIN PROGRAM F 3 CALL DIAL F H TO RESTART: H STOP PROCESSOR H START LS(4020)\> ANS1, 7400 3400 TEXT2, TEXT >HSENSE SWITCH POSN FUNCTION H 0 DOWN TEXT H 0 UP WAVEFORM H 1 DOWN SMALL TEXT H 1 UP LARGE TEXT H 2 DOWN TEXT IN OCTAL H 2 UP TEXT IN SYMBOLIC F FTYPE LF TO BEGIN F\> ANS2, 7400 0034 TEXT3, TEXT >FDATA BEGINS FIN BLOCK <3 F FOF UNIT<1\> ANS3, 7400 0000 7400 3400 TEXT4, TEXT >FPROGRAM "MAGSPY" H H (DIGITAL EQ. CORPORATION)\> ANS4, 0 /Q+A ROUTINE FOR PDP-12 QAINIT, LDA I /SAVE JMP RETURN 2 ADD 0 STA I QAB, 0 /JMP +3 ADD QAL+3 STC 1 /PTR TO FIRST PARAM LDA 1 /GET FIRST PARAM ADD QAQ+1 /PTR TO HALFWORD-1 STC QAG-3 LDA I 1 STC QARFSH-1 STC 6 /XR6 USED AS A SWITCH. =0 IF NO ANSWER FIELD, =1777 IF YES QACA, SET 3 QARFSH-1 SET 4 /XR4 TO PTR TO QUESTIONS QAG-3 /TO HERE IF FIRST TIME THROUGH OR FOLLOWING A CR SET 1 4 JMP QAT NOP /F LDH I 4 /H. BUMP PTR IF H OR F QAD, JMP QAO JMP .+6 /74 JMP QAE /34 SAE I /CR? 43 JMP QAD /NO JMP QACA+4 /EXAMINE NEXT CHAR /INITIALIZE ANSWER BUFR STH 3 /74 TO ANSWERS LDH I 4 /NEXT HALFWORD ADA I -60 COM STC 6 STH I 3 /0 IN AC XSK I 6 JMP .-2 LDH I 3 /BUMP PTR TO ANSWERS JMP QAD /ANSWER BUFR IS INITIATED QAE, STH 3 SET I 4 /XR4 TO PTR TO LAST TYPED CHAR IN ANSWER BUFR 0 /----RE-ENTER HERE TO REFRESH---- QARFSH, LDA I /INITIAL Y POSITION 137 STC QAH-1 SET I 3 /XR3 TO PTR TO HALFWORD QUESTIONS-1 0 SET 5 /XR5 TO PTR TO LAST DISPLAYED CHAR IN ANSWER BUFR QARFSH-1 QAG, SET 1 3 JMP QAT JMP .+7 /F LDH I 3 /H. BUMP PTR LDA I /NEITHER. ASSUME HALF SIZE BCL I STC QAM+2 /SET INSTR TO CLEAR FF FOR HALF SIZE ADD QAW /NOP IN AC JMP QAM LDH I 3 /BUMP PTR LDA I BSE I STC QAM+2 /SET INSTR TO SET FF FOR FULL SIZE ADD QAW+1 /ADD 9U IN AC QAM, STC QAP+3 MSC I 4 /EAD CONTROL REGISTER BSE I /THIS INSTR CHANGES. EITHER BSE & OR BCL & 200 MSC 4 /AC TO CONTROL REGISTER SET I 1 /XR1 TO INITIAL X POSITION 100 LDA I /Y COORDINATE MULTIPLE -40 ADM I /Y COORDINATE 0 QAH, LDH I 3 JMP QAO+1 JMP QAZ /74 BUMP PTR TO NEXT CHAR, PUT 40 IN AC JMP QAJ /34 SHD I /NEITHER 4300 JMP QAG /CR. MOVE X AND Y COORDINATE JMP QAP /ISPLAY CHAR JMP QAH /PICK UP NEXT CHAR JMP QAP /TO HERE IF DISPLAYING ANSWER BUFR SRO I /SWITCH TO DISPLAY CURSOR. EITHER 0000 OR 7777 0 /IFXR4=XR5, THEN SWITCH=7777 JMP QAF /QUESTION MODE QAI, LDH I 5 JMP QAO+1 JMP QAH /74 JMP QAH /34 JMP QAI-4 /NEITHER. DISPLAY IT QAJ, JMP GETKBD /TO HERE IF DISPLAYED BUFFER AZE I JMP QAB /NOTHING TYPED . EXIT SET I 2 QAY SHD 2 /LF? JMP QAK+4 /YES. EXIT SHD I 2 /CR? JMP QAN XSK 6 /IS THERE AN ANSWER FIELD? JMP QARFSH SHD I 2 /? JMP QAK SHD I 2 /ALT? JMP QACA SHD I 2 /BACK SLASH? JMP QARFSH /IGNORE SHD I 2 /RUBOUT? JMP QAL /IGNORE SHD I 2 /TAB? JMP QARFSH /IGNORE STC .+5 /ACCEPTABLE CHAR JMP QAO /TEST NEXT CHAR JMP QAQ /74 BACK PTR UP BY 1 JMP QAQ /34 ^ LDA I /OK. STORE IT 0 STH 4 JMP QARFSH /REDISPLAY QAL, LDH 4 /TO HERE IF RUBBOUT OR < JMP QAO+1 JMP QARFSH /74 IGNORE -6002 LDH 2 /TEST THE CHAR SAE I /RUBOUT? 37 JMP QAQ /NO. BACK PTR UP BY 1 SET 5 4 SET 3 4 JMP .+2 LDH I 5 /BUMP PTR LDH I 3 /GET NEXT CHAR JMP QAO+1 NOP /IF 74 OR 34, REPLACE CURRENT CHAR WITH 0 CLR STH 5 AZE /WAS IT 74 OR 34? JMP .-7 /NO. CONTINUE JMP QAQ /BACK PTR UP BY 1 /TO HERE IF CR QAN, XSK 6 JMP QAK+4 /EXIT ROUTINE IF NO ANSWER FIELD JMP QAO JMP QARFSH /74 MOVE PTR TO NEXT QUESTION FIELD JMP QAE+1 /34 END OF BUFR. MOVE PTR TO FIRST QUESTION FIELD JMP QAN+2 QAO, LDH I 4 /S\R SHD I / +1 74 BEGIN FIELD 7400 / +2 34 END BUFR JMP 0 / +3 NEITHER 74 NOR 34 SAE I 34 XSK I 0 XSK I 0 JMP 0 /S\R TO DISP LINC CHAR IN AC QAP, ROL 1 /MULT BY 2 FOR INDEX TO ADDRESS OF TABLE ADD QAX+4 STC 2 /ADDRESS OF CHAR TO DISP IN XR2 ADD QAU /THIS INSTR CHANGES. EITHER OP OR ADD 9U ADD QAU ADD 1 /ADD 4 TO XR1 TO SPACE CHAR STC 1 ADD 5 /GET ADDRESS OF ANSWER BUFR COM ADD 4 AZE CLR STC QAI-2 /SWITCH=0 OR 7777 ADD QAH-1 /Y COORDINATE IN AC DSC 2 DSC I 2 /DISPLAY CHAR JMP 0 QAQ, LDA I /BACK UP PTR BY 1 -4000 ADM 4 JMP QARFSH /REDISPLAY / QAT, LDH I 1 /S\R SHD I / +1 F 0600 / +2 H JMP 0 / +3 NEITHER SAE I 10 XSK I 0 XSK I 0 JMP 0 / QAZ, LDH I 3 LDA I 40 JMP QAI-4 /TO HERE IF > QAK, LDH I 4 AZE I /IS CURRENT CHAR BLANK? JMP QAQ /YES. IGNORE JMP QAX /MOVE DOT FORWARD /TO HERE TO EXIT WITH SKIP LDA I 1 ADM QAB JMP QAB /CHARACTER PATTERNS QAV, 0101 /KBD 0, ILLEGAL. USED AS MARKER 0101 4477 /1:A 7744 5177 /2:B 2651 4136 /3:C 2241 4177 /4:D 3641 4577 /5:E 4145 4477 /6:F 4044 4136 /7:G 2645 1077 /10:H 7710 7741 /11:I 0041 4142 /12:J 4076 1077 /13:K 4324 0177 /14:L 0301 3077 /15:M 7730 3077 /16:N 7706 4177 /17:O 7741 4477 /20:P 3044 4276 /21:Q 0376 4477 /22:R 3146 5121 /23:S 4651 4040 /24:T 4077 0177 /25:U 7701 0176 /26:V 7402 0677 /27:W 7701 1463 /30:X 6314 0770 /31:Y 7007 4543 /32:Z 6151 4177 /33:/ 0000 /34:BACKSLASH IGNORED ON INPUT 0 /NOT USED 0 /NOT USED 0000 /35:] 7741 /CODES 36:ALT, 37:RUBOUT NOT DISPLAYED QAY, 4543 /LF,CR 7476 /<,> 3634 /ALT, BACKSLASH 3747 /RUBOUT, TAB 0000 /40:SPACE 0000 7500 /41:X! 0000 7000 /42:" 0070 /CODES 43:, 44:, 45:LF NOT DISPLAYED QAX, JMP QAO+1 JMP QAQ JMP QAQ JMP QARFSH QAV 0 /NOT USED 5166 /46: & 0526 /CODE 47:TAB NOT DISPLAYED 0 /NOT USED 0 /NOT USED 3600 /50:( 0041 4100 /51:) 0036 2050 /52:* 0050 0404 /53:+ 0437 0500 /54:, 0006 0404 /55:- 0404 0001 /56:. 0000 0601 /57:\ 4030 4536 /60:0 3651 2101 /61:1 0177 4523 /62:2 2151 4122 /63:3 2651 2414 /64:4 0477 5172 /65:5 0651 1506 /66:6 4225 4443 /67:7 6050 5126 /70:8 2651 5122 /71:9 3651 2200 /72:: 0000 4601 /73:; 0000 /CODE 74: NOT DISPLAYED QAW, NOP ADD QAU 4020 /77:? 2055 / QAF, DSC I 6000 JMP QAI / /END Q+A / / / / /KEYBOARD INPUT ROUTINE / LKRB= 6036 /PDP-8 IOT KBD LTSF= 6041 /TSF LTLS= 6046 /TLS / GETKBD, LDA 0 STC EXIT+6 /SAVE RETURN ADD 1 /SAVE XRS 1 AND 2 STC EXIT+3 ADD 2 STC EXIT+5 STC EXIT+1 KST /WAS SOMETHING TYPED? JMP 0 /NO: EXIT IOB LKRB /GET TTY CHAR, CLEAR FLAG STA I /SAVE IT TY, 0 ADA I -237 APO /BETWEEN 200 AND 237? JMP CNTRL /CONTROL CHAR. CHECK FOR CR,LF, TAB / SET I 1 /NO CHARS-1 SET I 2 -7 LDA TY SAE I 1 JMP .+2 JMP EXIT /ILLEGAL CHAR. DON T ECHO XSK I 2 /CHECKED THEM ALL? JMP .-4 / ADA I -337 APO /BETWEEN 240 AND 337? JMP LEGAL /YES. LEGAL CHAR / SAE I 1 /NO. CHECK FURTHER. JMP .+7 LDA I /RUBOUT 334 JMP TPE /ECHO BACKSLASH LDA I 37 JMP EXIT+2 /LEGAL EXIT / SAE I 1 JMP EXIT /ILLEGAL /ALT JMP EXIT+2 /EXIT, DON T ECHO / LEGAL, LDA TY JMP TPE /ECHO CHAR ADD TY BCL I /STRIP IT TO 6-BIT 7700 JMP EXIT+2 /TO HERE IF CONTROL CHAR CNTRL, SAE I 7755 JMP CKLF LDA I /CR 43 STC EXIT+1 LDA I 215 JMP TPE LDA I 212 JMP TPE JMP EXIT / CKLF, SAE I 7752 JMP .+4 LDA I /LF 45 JMP CNTRL+5 SAE I 7751 JMP EXIT /ILLEGAL LDA I 47 JMP EXIT+2 /EXIT, DON T ECHO / EXIT, LDA I /GET 6-BIT ASCII 0 SET I 1 /RESTORE XRS 0 SET I 2 0 JMP /EXIR S\R GETKBD /S\R TO PRINT C(AC) TPE, IOB LTLS /PRINT IT LDA 0 STC .+4 /SAVE RETURN IOB LTSF JMP .-2 /WAIT FOR FLAG JMP /EXIT CHARS, 243 /HASH 244 /DOLLAR SIGN 245 /PER CENT 247 /APOSTROPHE 300 /AT SIGN 336 /UP ARROW 337 /BACK ARROW 40 /RUBOUT 36 /ALT /END OF S\R GETKBD MONIT, SET I 15 RCG SET I 16 7300 MSC I 1 BCL I 0010 MSC 1 JMP 15 /RETRIEVE BN OVRTEX, LDH ANS3+4001 AZE JMP LJUS1 LDH /NULL ANS3+1 STH ANS3+4001 LDH ANS3+4000 STH ANS3+1 LDA I 0060 STH ANS3+4000 LJUS, LDH ANS3+4001 AZE JMP LJUS1 LDH /NULL ANS3+1 BSE I 6000 STA ANS3+1 LJUS1, LDH ANS3+4000 BCL I 0070 ROL 6 BSE I 5000 STA BN LDH ANS3+1 /LEFT HALF INTO RT ACC BCL I 0070 ROL 3 ADM BN LDH ANS3+4001 /RT HALF TO RT ACC BCL I 0070 ADM BN /BN=5XXX LDF 1 STA 2037 /BN ADA I 1001 /BN=5XXX+1 BCL I /PREVENTS QTR 7 IF 1000 /BN REQUESTED=777 STA BN1 /BN1=6XXX+1 /RETRIEVE UNIT FROM QASUB LDH ANS3+4002 BSE I 4000 STA 2005 /UNCODE+4002 BCL I 4076 ROL 3 ADA I RDE /UNIT LEAST BIT SET STA RDTP1 /INIT READ, Q5 STA RDTP2 /INIT READ, Q6 STA 2006 /RDTP3 STA 2007 /RDTP4 LDH ANS3+4002 BCL I /EXT TAPE UNIT BITS 0071 ROR 1 BSE I 0010 STA SETUN MSC I 1 /0021 BSE I SETUN, 0 MSC 1 /0001 LDF 3 RDTP1, 0 /RDE U BN, 0 /5XXX, WHEN X=BN STD JMP .-1 /TAPE BUSY RDTP2, 0 /ROE U BN1, 0 /6XXX, WHERE X=BN+1 STD JMP .-1 /TAPE BUSY LIF 1 JMP 20 SEGMNT 1 *20 LDA 5 STA UNCODE+4002 LDA 6 STA RDTP3 LDA 7 STA RDTP4 /IX10: DISPLAY COUNTER /IX11: CURRENT CORE POSITION /IX12: INITIAL CORE POSITION /IX13: INITIAL QNBN /IX14: CURRENT QNBN /IX15: CURRENT ASCII H\W COUNTER PART2, SET I 12 /INIT CORE POSN 2400 SET I 13 0 /BN TRF FROM BANK2 /INITIALIZE DISPLAY LOOP DSLOOP, SET 11/RESET CURRENT CORE 12 SET 14 /RESET CURRENT QNBN 13 SET I 10 0777 LDA 12 ADA I -1 STA 15 /DISPLAY LOOP DSNORM, SNS 0 JMP ASCII LDA 11 DIS I 10 /CHECK FOR END OF QTR LDA 11 BSE I 7400 AZE I /377 CHECK JMP EOQTR /YES, END OF QTR /LOOP UPDATE QTRRET, XSK I 11 NOP XSK 10 /MORE PTS TO DISPLAY JMP DSNORM /YES /DISPLAY TERMINAL: /DISPLAY UNIT. /SAMPLE. /READ IN NEW BLOCK, IF NECESSARY. /IF NEW INIT CODE ROLLS OVER INTO /DIFFERENT QTR, UPDATE INIT. BN+QTR. JMP UNTILE /DISPLAY UNIT NUMBER SAM7, SAM 7 COM SCR 6 STA I SAMPLE, 0 APO /DIR OF TAPE MTN JMP DNTP /NEG - DN JMP UPTP /POS - UP /DISPLAY BN DIVIDER EOQTR, XSK 10 /END OF SCOPE JMP .+2 /NO JMP NEXT /YES XSK I 10 /UPDATE SCOPE CT NOP SET I 2 -100 LDA I 7400 MORPT, DIS 10 ADA I 6 XSK I 2 JMP MORPT /DISPLAY BLOCK NUMBER NEXT, LDA 10 ADA I -1200 APO /ROOM FOR BN JMP UP14 /NO ROOM STA 1 /H COORD SET MIDEOQ, LDH /QXVZ 14 /00QX BCL I 7770 BSE I 0060 STH BNCODE+4001 LDH 14+4000 /00YZ ROR 3 /Z00Y BSE I 0060 STH BNCODE+2 LDH 14+4000 /00YZ BCL I 7770 /0002 BSE I 0060 STH BNCODE+4002 SET I 2 -6 SET I 3 BNCODE-1+4000 GOGO, LDH I 3 ROL 1 ADA I A9V STC 4 LDA I 0300 DSC 4 DSC I 4 LDA I 4 ADM 1 XSK I 2 JMP GOGO /UPDATE QNBN UP14, LDA 14 BCL I /PREVENTS 7777 CASE 7000 ADA I 1 BCL I /PREVENTS X777 ROLLOVER 7000 STA I STORE, 0 LDA 14 BCL I 0777 ADA I 1000 BSE I 4000 BCL I 0777 ADA STORE STC 14 /IX14 NOW UPDATED JMP QTRRET BNCODE, 0216 4000 0000 /Y,Z UNCODE, 2516 1124 4000 UNTILE, SET I 2 -6 SET I 3 UNCODE-1+4000 SET I 1 4 GOGOO, LDH I 3 ROL 1 ADA I A9V STC 4 LDA I 0340 DSC 4 DSC I 4 LDA I 4 ADM 1 XSK I 2 JMP GOGOO JMP SAM7 UPTP, LDA 14 BCL I 7000 /PREVENTS 7777 CASE ADA I 1 BCL I 7000 /PREV