.TITLE GD4105 - TEK 4105 DRIVER .IDENT /VERS20/ .SBTTL HOW TO CUSTOMIZE THIS PACKAGE .ENABLE LC ; This file contains the TEK. 4105 and 4107 (maybe even 4109) driver ; for DIGLIB. The 4109 screen size and resolution has been grossly ; faked. Also remember to set DEV to 4109. (note the decimal point). .IF NDF DEV DEV = 4105 ;default is 4105 .ENDC ; THIS PACKAGE IS CONDITIONAL ASSEMBLED. THE CONDITIONALS ; AND THEIR RESPECTIVE MEANINGS ARE LISTED BELOW. ; ;1) SET THE SYMBOL OS TO: ; 1 ==> RT11 ; 2 ==> TSX ; 3 ==> RSX11M (IMPLIES F4P/F77) .IF NDF OS OS = 3 .ENDC ;2) DEFINE THE SYMBOL "HAVEIS" IF YOUR MACHINE HAS EIS, ELSE ; LEAVE IT UNDEFINED (COMMENTED OUT). THIS IS ONLY NECESSARY ; FOR RT PEOPLE SINCE TSX AND RSX MACHINES MUST HAVE EIS. .IIF GT OS-1 HAVEIS = 1 .SBTTL DEFINATIONS, ECT. .IF NE OS-3 .MCALL .PRINT, .TTYIN, .TTINR JSW = 44 TTSPC = 50000 ;SPECIAL MODE + LOWER CASE ENABLE NOWAIT = 100 ;NO WAIT FOR .TTINR UNDER FB OR XM .IFF .MCALL QIOW$, DIR$ .ENDC ;NE OS-3 (RSX11M) .GLOBL GDAID, GDGAID F0 = %0 ;FLOATING PT. REG. 0 FOR RSX11M .IF EQ OS-3 BUFSIZ = 130. .IFF BUFSIZ = 78. .ENDC ESC = 27. ;ESCAPE CHARACTER CSUB = 26. GS = 29. ;DEFINE TEKTRONIX 4010 CONTROL CODES US = 37 ;GO TO ASCII MODE CR = 15 LF = 12 FF = 14 ;ERROR MACRO DEFINATION .MACRO ERROR TEXT JSR R0,ERROR1 .ASCIZ @TEXT@ .EVEN .ENDM ERROR .PSECT GD410X ;WE ARE RELOCATABLE .SBTTL ENTRY POINT .IIF EQ DEV-4105 GD4105:: .IIF EQ DEV-4107 GD4107:: .IIF EQ DEV-4109. GD4109:: TST (R5)+ ;SKIP ARG COUNT MOV @(R5)+,R0 ;GET FUNCTION TO PERFORM BLE 1$ ;ITS A BADDY CMP R0,#1024. ;SEE IF POLYGON BLT 2$ JMP POLYGN 2$: ASL R0 ;MAKE WORD OFFSET ADD #DSPTBL-2,R0 ;R0 ==> ADDRESS OF PROCESSING ROUTINE CMP R0,#TBLEND ;SEE IF UNSUPPORTED FUNCTION BGE 1$ ;YES JMP @(R0)+ ;NO, DISPATCH TO ROUTINE 1$: ERROR DSPTBL: .WORD INIT, BGNPLT, MOVE, DRAW, ENDPLT, RLSDEV .WORD GETCHR,SETCOL,GIN ;NO SET-RGB OR SET-HLS YET TBLEND: .SBTTL INIT AND BGNPLT ; ;INITIALIZE - FUNCTION 1 ; INIT: .IF EQ OS-2 ;IF BLOODY TSX, THEN MOV #ON,R0 ;TELL TSX TO LEASE OUR TTY I/O ALONE EMT 375 .IFTF JSR PC,DOINIT ;INIT BUFFERS, ETC. JSR R4,INSERT .ASCII "%!0" ;CODE TEK. .ASCII "KA1" ;DAENABLE YES .ASCII "LM0" ;DAMODE REPLACE .ASCII "ML1" ;LINE INDEX 1 (COLOR 1) .ASCII "NT1=" ;EOL STRING (CR) .ASCIZ "RW" ;WINDOW .EVEN CLR R0 ;WINDOW LOWER X = 0 CLR R1 ;WINDOW LOWER Y = 0 JSR PC,CVTXY ;CONVERT TO TEK. 4010 CODES .IF EQ DEV-4105 MOV #479.,R0 ;WINDOW UPPER X 4105 MOV #359.,R1 ;WINDOW UPPER Y 4105 .IFF MOV #639.,R0 ;WINDOW UPPER X 4107 AND 4109 MOV #479.,R1 ;WINDOW UPPER Y 4107 AND 4109 .ENDC JSR PC,CVTXY ;CONVERT TO TEK. 4010 CODES JSR PC,PLTMT1 ;SEND TO 410X NOW RTS PC ;DONE .IFT ON: .BYTE 1,120 .ENDC ;EQ OS-2 ; ;BGNPLT - FUNCTION 2 ; BGNPLT: JSR PC,DOINIT ;KILL ANY LEFT OVER GRAPHICS JSR R4,INSEND ;REQUEST A GRAPHICS ERASE .BYTE ESC,FF,0 .EVEN CLR XPOSN ;AND RESET X & Y POSN CLR YPOSN RTS PC ;DONE .SBTTL MOVE AND DRAW ; ;MOVE - FUNCTON 3 ; MOVE: JSR PC,MAKINT ;SCALE SCREEN CM COORD. TO GDU MOV R0,XPOSN ;SET NEW POSITION MOV R1,YPOSN SETPOS: MOVB #1,DOINGV ;SHOW MOVED RTS PC ;RETURN ; ;DRAW - FUNCTION 4 ; DRAW: JSR PC,MAKINT ;CONVERT SCREEN CM COORD. TO GDU CMPB DOINGV,#2 ;SEE IF IN A SERIES OF VECTORS BEQ ADDTO ;YES, JUST ADD THIS ONE STVCT: JSR PC,SETXY ;START A VECTOR AT XPOSN,YPOSN MOVB #2,DOINGV ;SHOW VECTOR MODE ADDTO: CMP BUFCNT,#BUFSIZ-8. ;SEE IF ROOM FOR MORE BPL STVCT ;NOPE, RESTART MOV NEWX,R0 ;CONVERT X,Y TO 4010 CODES MOV R0,XPOSN MOV NEWY,R1 MOV R1,YPOSN JSR PC,CVTXY RTS PC SETXY: CMP BUFCNT,#BUFSIZ-15. ;SEE IF ENOUGH ROOM LEFT IN BUFFER BLO 1$ ;YES JSR PC,PLTMT1 ;EMPTY BUFFER 1$: JSR R4,INSERT ;AND START A VECTOR .BYTE GS,0 .EVEN INCB USEDGS ;SHOW WE HAVE A GS IN THE BUFFER MOV XPOSN,R0 ;SET X MOV YPOSN,R1 ;AND Y JSR PC,CVTXY ;CONVERT X,Y TO 4010 CODES RTS PC ;ALL DONE NOW .SBTTL ENDPLT AND RLSDEV ; ;END OF PLOTTING (FLUSH BUFFER) - FUNCTION 5 ; ENDPLT: JSR PC,PLTMTY ;FORCE LAST BUFFER OUT RTS PC ; ;RELEASE DEVICE - FUNCTION 6 RLSDEV: JSR PC,PLTMTY JSR R4,INSERT .ASCIZ "%!1" ;CODE ANSI .EVEN JSR PC,PLTMT1 .IF EQ OS-2 ;IF BLOODY TSX, THEN MOV #OFF,R0 ;TELL TSX "NORMAL" TTY I/O EMT 375 .IFTF RTS PC .IFT OFF: .BYTE 0,120 .ENDC ;EQ OS-2 .SBTTL GETCHR - GET CHARACTERISTICS ; ;GET DEVICE CHARACTERISTICS - FUNCTION 7 ; GETCHR: MOV (R5)+,R4 ;R4 ==> OUTPUT ARRAY MOV #CHRTBL,R0 ;R0 ==> OUR CHARACTERISTICS MOV #CWORDS,R1 ;R1 = NUMBER OF WORDS TO MOVE 1$: MOV (R0)+,(R4)+ ;MOVE CHARACTERISTICS SOB R1,1$ RTS PC CHRTBL: .IF EQ DEV-4105 .FLT2 4105.0, 24.34, 18.248 XGUPCM: .FLT2 19.7 YGUPCM: .FLT2 19.7 .FLT2 7.0 NCOLRS = 7 .FLT2 389.0 ;RASTER, ERASE WRITE, GIN AVAILABLE, POLYGONS .FLT2 1.0 ;ALL NEED EVERY LINE FILLED CWORDS = <.-CHRTBL>/2 .ENDC .IF EQ DEV-4107 .FLT2 4107.0, 24.343, 18.248 XGUPCM: .FLT2 26.25 YGUPCM: .FLT2 26.25 .FLT2 15.0 NCOLRS = 15. .FLT2 389.0 ;RASTER, ERASE WRITE, GIN AVAILABLE, POLYGONS .FLT2 1.0 ;ALL NEED EVERY LINE FILLED CWORDS = <.-CHRTBL>/2 .ENDC .IF EQ DEV-4109. .FLT2 4109.0, 35.5, 26.6111 XGUPCM: .FLT2 18.0 YGUPCM: .FLT2 18.0 .FLT2 15.0 NCOLRS = 15.0 .FLT2 389.0 ;RASTER, ERASE WRITE, GIN AVAILABLE, POLYGONS .FLT2 1.0 ;ALL NEED EVERY LINE FILLED CWORDS = <.-CHRTBL>/2 .ENDC .SBTTL SELECT COLOR ; ;SELECT COLOR - FUNCTION 8 ; SETCOL: JSR PC,PLTMTY JSR PC,GETINT ;GET COLOR NUMBER CMP R1,#NCOLRS ;SEE IF LEGAL COLOR NUMBER BHI COLERR ;YES ADD #'0,R1 ;MAKE COLOR ASCII NUMBER MOVB R1,COLOR ;SET IT FOR TRANSMISSION JSR R4,INSERT ;INSERT CHANGE COLOR COMMAND .ASCII "ML" COLOR: .ASCII "1" ;COLOR ASCII DIGIT .BYTE 0 ;TERMINATOR .EVEN RTS PC COLERR: ERROR .SBTTL GIN COMMAND COMMON ; ;GRAPHICS INPUT WITH PICK CHARACTER - FUNCTION 8 ; GIN: JSR PC,PLTMTY ;FLUSH BUFFER JSR R4,INSERT .ASCIZ "SX0" ;WRITE GIN CURSOR POSITION .EVEN MOV GINX,R0 ;SET TO LAST CURSOR POSITION MOV GINY,R1 ;SET TO LAST CURSOR POSITION JSR PC,CVTXY ;CONVERT TO TEK. 4010 CODES JSR PC,PLTMTY ;SEND IT OUT JSR PC,GETLIN ;GET THE RESPONSE MOV (R5)+,R4 ;R4 ==> ARRAY FOR CHAR,X,Y JSR PC,GINCHR ;GET GIN CHARACTER STRUCK .IF EQ OS-3 ;IF RSX11M, THEN F4P/F77, SO FPU SETF SETI LDCIF R0,F0 ;FLOAT R0 INTO F0 STF F0,(R4)+ ;PLACE CHARACTER FIRST IN ARRAY .IFF ;NO FPU JSR PC,FLOAT ;FLOAT THE NUMBER MOV R0,(R4)+ ;PLACE IT FIRST IN THE ARRAY MOV R1,(R4)+ .ENDC ;EQ OS-3 MOV R4,UNXADD ;SHOW WHERE TO STORE X IN CM. ADD #4,R4 ;FIGURE OUT WHERE Y IN CM. GOES MOV R4,UNYADD ;SHOW WHERE TO STORE Y IN CM. JSR PC,UNPACK ;GET IX MOV R0,GINX ;SAVE GIN X POSITION JSR PC,UNPACK ;GET IY MOV R0,GINY ;SAVE IY MOV #UNSCR5,R5 ;PREPARE TO UNSCALE IX,IY TO X,Y JSR PC,GDGAID ;CALL FTN TO UNSCALE JSR R4,INSEND ;SEND AS BYPASS-CANCEL-CHARACTER .BYTE LF,0 .EVEN RTS PC ;AND DONE UNSCR5: .WORD 6 .WORD GINX,GINY,XGUPCM,YGUPCM UNXADD: .WORD 0 UNYADD: .WORD 0 .IF EQ OS-3 FLUSH: .BYTE TC.TBF .BYTE 0 FLSIZ = . - FLUSH .ENDC ;EQ OS-3 (RSX11M) .SBTTL ACTUAL GIN I/O GETLIN: .IF EQ OS-3 ;RSX-11M MOV #FLUSH,QDPB+Q.IOPL ;SET ADDRESS OF FLUSH TYPE AHEAD MOV #FLSIZ,QDPB+Q.IOPL+2 ;NUMBER OF BYTES MOV #SF.SMC,QDPB+Q.IOFN ;SET FUNCTION TO SET MULT. CHAR DIR$ #QDPB ;FLUSH THE TYPEAHEAD BUFFER MOV #BUFST,QDPB+Q.IOPL ;SET BUFFER START ADD. MOV #6.,QDPB+Q.IOPL+2 ;SET EXPECTED NUMBER OF BYTES MOV #IO.RPR!TF.RNE!TF.RAL,QDPB+Q.IOFN ;SET FUNCTION TO ;READ AFTER PROMPT WITH NO ECHO ;AND READ ALL BITS MOV #PROMPT,QDPB+Q.IOPL+6 ;SET PROMPT ADDRESS MOV #PRSIZE,QDPB+Q.IOPL+10 ;SET PROMPT SIZE MOV #40,QDPB+Q.IOPL+12 ;VFC IS NORMAL DIR$ #QDPB ;EXECUTE THE READ BCS RDERR ;ERROR ON DIRECTIVE REJECTED CMPB IOSB,#IS.SUC ;MAKE SURE IT WORKED BNE RDERR .IFF ;RT-11 OR TSX MOV @#JSW,-(SP) ;SAVE OLD JSW BIS #TTSPC,@#JSW .IF EQ OS-1 ;RT-11 ONLY BIS #NOWAIT,@#JSW ;EMPTY TYPE AHEAD BUFFER 11$: .TTINR ;GET CHARACTER IF AVAILABLE BCC 11$ ;GO TILL GET FAILES BIC #NOWAIT,@#JSW ;MAKE IT WAIT NOW .ENDC ;EQ OS-1 .PRINT #PROMPT ;ASK FOR A CURSOR READING MOV #BUFST,R1 ;PREPARE TO READ DATA INTO BUFFER MOV #6,R2 ;GET 6 CHARACTERS 1$: .TTYIN ;GET A CHAR INTO R0 MOVB R0,(R1)+ ;INSERT CHARACTER INTO BUFFER CMPB R0,#CR ;SEE IF CARRIAGE RETURN BNE 2$ ;NOPE .TTYIN ;EAT LINEFEED RT11 WILL INSERT 2$: DEC R2 ;COUNT CHARACTERS OUT BNE 1$ ;GO GET ANOTHER CHARACTER IF MORE MOV (SP)+,@#JSW ;RESTORE ECHO AND ONLY UPPER CASE .IFTF MOV #BUFST,R3 ;SHOW WHERE STUFF IS CMPB 5(R3),#CR ;MAKE SURE AT END BNE GETLIN ;IF NOT, THEN SOMETHING WENT WRONG, TRY AGAIN RTS PC ;ALL DONE .IFT ;RSX11M RDERR: ERROR .ENDC ;EQ OS-3 PROMPT: .BYTE ESC,CSUB PRSIZE = . - PROMPT .IIF NE OS-3 .BYTE 200 .EVEN GINCHR: MOVB (R3)+,R0 ;GET PICK CHARACTER BIC #177600,R0 ;MAKE 7 BIT ASCII RTS PC UNPACK: MOVB (R3)+,R0 ;GET 5 MSB BIC #177740,R0 ;ONLY 5 MSB SWAB R0 ;INTO 8 MSB ASR R0 ASR R0 ASR R0 ;INTO PROPER PLACE MOVB (R3)+,R1 ;GET 5 LSB BIC #177740,R1 ;ONLY 5 LSB BIS R1,R0 ;PUT ALL 10 BIT TOGETHER RTS PC .SBTTL POLYGONS POLYGN: SUB #1024.,R0 ;R0 = NUMBER OF SIDES CMP R0,#3. ;MAKE SURE ATLEAST 3 SIDES BLO PRETRN ;FORGET IT IF LESS THAN 3 SIDES MOV R0,-(SP) ;SAVE NUMBER OF SIDES JSR PC,PLTMTY ;START WITH AN EMPTY BUFFER JSR R4,INSERT ;START POLYGON .ASCIZ "LP" .EVEN JSR PC,MAKINT ;CONVERT 1ST X,Y COORD. JSR PC,CVTXY ;IN 4010 COORDINATES DEC (SP) ;ONE X,Y PAIR SENT BR 3$ ;ENTER LOOP 1$: CMP BUFCNT,#BUFSIZ-8.;SEE IF ENOUGH ROOM LEFT IN BUFFER ;NEED 4 FOR X,Y AND 3 FOR END-POLYGON. BLO 2$ ;YES JSR PC,PLTMT2 ;SEND BUFFER 3$: JSR R4,INSERT ;USE TO SELECT VECTOR MODE FOR ENDPOINTS .BYTE GS,0 .EVEN 2$: JSR PC,MAKNXT ;GET NEXT X,Y PAIR JSR PC,CVTXY ;CONVERT TO 4010 DEC (SP) ;COUNT COORDINATES OUT BNE 1$ TST (SP)+ ;FORGET COUNT ENDPLY: JSR R4,INSERT ;FINISH POLYGON .ASCIZ "LE" .EVEN PRETRN: RTS PC ;DONE HERE .SBTTL ASCII CODING ROUTINE CVTXY: MOV R0,-(SP) ;SAVE X MOV #96.,R0 ;SET LOW BIAS FOR Y JSR PC,CVT MOV #64.,R0 ;SET LOW BIAS FOR X MOV (SP)+,R1 ;SET X FOR CONVERSION JSR PC,CVT RTS PC CVT: MOV BINPTR,R3 ;GET A POINTER INTO BUFFER MOV R1,-(SP) ;SAVE A COPY ASL R1 ;POSITION 5 MSB INTO 5 LSB ASL R1 ASL R1 SWAB R1 ;FINALLY GOT EM INTO LOW 5 BITS BIC #177740,R1 ;ONLY LOW BITS ADD #32.,R1 ;CODE AS CHARACTER MOVB R1,(R3)+ ;INSERT INTO BUFFER MOV (SP)+,R1 ;GET COPY BACK BIC #177740,R1 ;ONLY LOW BITS ADD R0,R1 ;MAKE PROPER CHARACTER MOVB R1,(R3)+ ;INSERT IT ALSO MOV R3,BINPTR ;RESTORE POINTER ADD #2,BUFCNT ;ACCOUNT FOR INSERTING TWO RTS PC ;WE DID IT ALL .SBTTL MAKINT SUBROUTINE MAKINT: MOV (R5)+,XADD ;PASS X ARG ON MOV (R5)+,YADD ;PASS Y ARG ON CVRTXY: MOV #SCLR5,R5 ;PREPARE TO CALL A FTN CALC. ROUTINE JSR PC,GDAID MOV NEWX,R0 ;RETURN X,Y IN R0,R1 FOR THOSE THAT WANT IT. MOV NEWY,R1 RTS PC MAKNXT: ADD #4,XADD ;POINT AT NEXT X ADD #4,YADD ;POINT AT NEXT Y BR CVRTXY SCLR5: .WORD 6 XADD: .WORD 0 YADD: .WORD 0 .WORD XGUPCM .WORD YGUPCM IXADD: .WORD NEWX IYADD: .WORD NEWY GETINT: MOV (R5)+,R4 ;POINT TO FLOATING VALUE GETIN2: .IF EQ OS-3 ;IF RSX, THEN FPU SETF SETI LDF (R4)+,F0 ;GET FLOATING VALUE STCFI F0,R1 ;PLACE 16 LSB IN R1 RTS PC ;THATS IT .IFF ;NO FPU MOV (R4)+,R0 ;GET HIGH PART MOV (R4)+,R1 ;GET LOW PART MOV R0,R3 ;COPY EXPONENT MOV R0,-(SP) ;SAVE SIGN ALSO BIC #177600,R0 ;GET MANTISSA (ALMOST) BIS #200,R0 ;RESTORE HIDDEN BIT TO MANTISSA ASL R3 ;ALIGN EXPON. IN HIGH BYTE SWAB R3 ;PUT IN LOW BYTE BIC #177400,R3 ;GET ONLY EXPON. SUB #200,R3 ;TAKE OUT EXCESS 200 FROM EXPON. BLE 2$ ;IF <0 THEN NUMBER <1 SUB #24.,R3 ;COMPUTE RIGHT SHIFT COUNT CMP R3,#8. ;SEE IF > 2**32 -1 BGE 2$ ;IF THAT BIG, USE ZERO ASHC R3,R0 ;SHIFT RIGHT PROPER NUMBER OF BITS TST (SP)+ ;SEE IF MINUS BPL 1$ COM R0 ;NEG. D.P. INTEGER NEG R1 ADC R0 ;PROPAGE CARRY 1$: RTS PC ;AND DONE 2$: CLR R1 ;RETURN 0 CLR R0 TST (SP)+ ;FORGET STUFF ON STACK RTS PC FLOAT: MOV R0,R1 ;PREPARE TO FLOAT BEQ 9$ ;ALL DONE SIZE ITS ZERO CLR R0 ;ZERO HIGH PART MOV R2,-(SP) ;SAVE R2 MOV #46000,R2 ;R2=EXPONENT OF 24 BIT NUMBER 1$: SUB #200,R2 ;WHACK DOWN EXPONENT AS WE NORMALIZE ASL R1 ;SHIFT LOW LEFT ROLB R0 ;SHIFT HIGH LEFT BPL 1$ ;NOPE, KEEP ON SHIFTING BIC #177600,R0 ;KILL MSB BIS R2,R0 ;MAKE FLOATING PT. EXP + MANTISSA MOV (SP)+,R2 ;RESTORE R2 9$: RTS PC ;DONE .ENDC ;EQ OS-3 .SBTTL UTILITY ROUTINES ; ;CALL PLTMTY ; ;THIS ROUTINE EMPTIES THE GRAPHICS BUFFER PLTMTY: CMPB DOINGV,#1 ;SEE IF BEAM WAS POSITIONED? BNE PLTMT1 ;NOPE JSR PC,SETXY ;YES, MOVE THERE PLTMT1: TST BUFCNT ;MAKE SURE SOMETHING TO SEND BEQ EXIT PLTMT2: MOV BINPTR,R1 ;SET INPUT POINTER IN R1 TSTB USEDGS ;SEE IF A "GS" IN CURRENT LINE BEQ 1$ ;NOPE MOVB #US,(R1)+ ;INSERT A GO TO ASCII MODE INC BUFCNT ;INCLUDE THIS CHAR 1$: .IF NE OS-3 MOVB #CR,(R1)+ ;ONLY CR TO MAKE RT-11 HAPPY MOVB #200,(R1)+ ;200 BYTE TERMINATES WITH NOTHING .PRINT #BUFST ;DO THE I/O NOW .IFF JSR PC,DOQIO ;SEND TO THE TERMINAL .ENDC ;NE OS-3 DOINIT: CLRB DOINGV ;NOT DOING A VECTOR CLRB USEDGS ;NO GS IN NEXT LINE YET. CLR BUFCNT ;NO CHARS LEFT IN BUFFER ANY MORE MOV #BUFST,BINPTR ;RESTORE TO START OF BUFFER EXIT: RTS PC ;AND DONE .IF NE OS-3 ;RT11 OR TSX ERROR1: MOV R0,-(SP) ;SAVE POINTER TO ERROR CODE .PRINT #NAME ;OUTPUT DRIVER NAME MOV (SP)+,R0 ;RESTORE POINTER TO TEXT .PRINT ;MAKE .PRINT CALL TRAP 300+63. ;GIVE FORTRAN ERROR MESSAGE .IFF ;RSX11M ERROR1: MOV #BUFST,R1 ;R1 ==> ERROR MESSAGE AREA MOV #NAME,R2 ;R2 ==> START OF MESSAGE 1$: MOVB (R2)+,(R1)+ ;MOVE START OF MESSAGE BNE 1$ ;GO TILL ALL MOVED DEC R1 ;BACK UP TO NEXT FREE BYTE 2$: MOVB (R0)+,(R1)+ ;PLACE SECOND HAVE OF MESSAGE IN BUFFER BNE 2$ CLR -(SP) ;2ND WORK OF MESSAGE BLOCK MOV #BUFST,-(SP) ;SET ADDRESS OF TEXT MOV SP,R0 ;R0 ==> MSG BLOCK CLR R1 ;SIGNAL NOT AN ERROR YET JSR PC,$ERRLG ;TYPE OUR MESSAGE CMP (SP)+,(SP)+ ;CLEAN UP THE STACK TRAP +341 ;GIVE NON-FTN4PLUS ERROR MESSAGE .ENDC ;F4P NAME: .IIF NE OS-3 .BYTE 15,12 .ASCIZ 'GD4105 - ' .EVEN INSERT: CLR INFLG ;SHOW INSERT BR PUT INSEND: MOV R4,INFLG ;SHOW INSEND PUT: MOV R1,-(SP) ;SAVE R1 MOV BINPTR,R1 ;GET POINTER TO BUFFER 1$: MOVB (R4)+,(R1)+ ;INSERT A CHAR BEQ 2$ ;BRANCH ON END OF STRING INC BUFCNT ;ADD UP CHARS CMP BUFCNT,#BUFSIZ-1 ;CHECK FOR TOO MANY BMI 1$ ;NOPE ERROR 2$: DEC R1 ;BACK UP TO REAL CHAR MOV R1,BINPTR ;RESTORE POINTER MOV (SP)+,R1 ;RESTORE R1 TST INFLG ;SEE IF WE SHOULD SEND ALSO BEQ EVNOUT ;NOPE JSR PC,PLTMT2 ;SEND BUFFER EVNOUT: INC R4 ;MAKE R4 EVEN BIC #1,R4 RTS R4 .IF EQ OS-3 .SBTTL QIO DRIVER DOQIO: MOV #BUFST,QDPB+Q.IOPL ;SET BUFFER ADDRESS MOV BUFCNT,QDPB+Q.IOPL+2 ;SET BYTE COUNT MOV #'+,QDPB+Q.IOPL+4 ;SET TO FORT. VFC - SUPPRESS LF MOV #IO.WAL,QDPB+Q.IOFN ;SET TO WRITE VIRTUAL BLOCK MOV #5,QDPB+Q.IOLU ;SET LUN=5 (TI:) DIR$ #QDPB ;EXECUTE THE QIO BCS WRTERR ;OOPS TSTB IOSB ;MAKE SURE TRANSFER WORKED BMI WRTERR ;OOPS RTS PC ;WHEW, WE DID IT UNDER RSX WRTERR: ERROR QDPB: QIOW$ IO.WAL,0,24.,0,IOSB,0, IOSB: .BLKW 2 .ENDC ;OS-3 .SBTTL VARIABLES AND BUFFER XPOSN: .WORD 0 YPOSN: .WORD 0 NEWX: .WORD 0 NEWY: .WORD 0 GINX: .WORD 480./2 ;4105 GINY: .WORD 360./2 ;4105 INFLG: .WORD 0 DOINGV: .BYTE 0 USEDGS: .BYTE 0 .EVEN BINPTR: .WORD 0 BUFCNT: .WORD 0 BUFST: .BLKB BUFSIZ .END