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*20 /QANDA SUBROUTINE FOR THE /PDP-12 /REMOVE *1000 BELOW IF /INSERTING SOURCE DIRECTLY /INTO YOUR PROGRAM SOURCE *1000 /REMOVE,IF DESIRED / /TO HERE TO INITIALIZE THE ROUTINE / 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 /XR3 TO PTR TO ANSWERS 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 277 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 QAL SHD I 2 />? JMP QAK SHD I 2 /ALT? JMP QACA /REINITIALIZE 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 DI*20 *14 CLR AXO 701 7300 STC .+3 AXO LDA I 0 SAE I 660 SKP JMP F0 SAE I 661 SKP JMP F1 SAE I 261 SKP JMP B1 SAE I 260 SKP JMP B0 SAE I 2261 SKP JMP R1 SAE I 2260 SKP JMP R0 SAE I 2202 SKP JMP RB SAE I 2760 SKP JMP W0 SAE I 2761 SKP JMP W1 SAE I 2702 SKP JMP WB SAE I 602 SKP JMP FB SAE I 0202 SKP JMP BB JMP 14 B1, CLR CHK I 10 777 SET I 7 -40 LDA I 144 IOB 6152 XSK I 10 JMP .-3 XSK I 7 JMP .-5 CHK 10 300 JMP 20 B0, LDA I CHK I 00 STC B1+1 LDA I 104 STC B1+6 LDA I CHK 00 STC B1+15 LDA I JMP 20 STC B0-1 JMP B1 F1, LDA I 000 STC B1+2 LDA I 64 STC B1+6 JMP B1 F0, LDA I 000 STC B1+2 LDA I 24 STC B1+6 LDA I CHK I 0 STC B1+1 LDA I CHK 0 STC B1+15 LDA I JMP 20 STC B0-1 JMP B1 BB, LDA I NOP STC B0-1 JMP B1 FB, LDA I JMP F1 STC B0-1 JMP F0 R0, CHK 10 300 JMP PAUSE LDA I 14 AXO CHK I 0 0 JMP PAUSE LDA I 17 AXO CHK I 0 0 HLT JMP 14 R1, CHK 00 300 JMP PAUSE LDA I 14 AXO CHK I 10 0 JMP PAUSE LDA I 17 AXO CHK I 0 0 HLT JMP 14 RB, LDA I 14 AXO CHK I 0 0 JMP PAUSE LDA I 14 AXO CHK I 10 0 JMP PAUSE LDA I 17 AXO CHK I 0 0 HLT JMP 14 W0, LDA I 777 STC R0+7 JMP R0 W1, LDA I 777 STC R1+7 JMP R1 WB, LDA I 777 STA RB+4 STC RB+12 JMP RB PAUSE, SET I 10 -100 DJR XSK I 7 JMP .-2 DJR XSK I 10 JMP .-5 JMP 0