.TITLE GDAED - AED 767 DRIVER .IDENT /SEPT83/ .SBTTL HOW TO CUSTOMIZE THIS PACKAGE .ENABLE LC ; This file contains the AED 767 driver for DIGLIB. ; 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 JSW = 44 TTSPC = 50000 ;SPECIAL MODE + LOWER CASE ENABLE .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 ;AED SPECIFIC COMMANDS HOM = 95. ;HOME ALPHA CURSOR OPT = 40. ;SET OPTIONS SAP = 94. ;SELECT ALPHA PARAMETERS RST = 48. ;RESET TERMINAL SEN = 71. ;SET ENCODING SEC = 67. ;SET FOREGROUND COLOR SBC = 91. ;SET BACKGROUND COLOR SWM = 76. ;SET WRITE MASK CTRLA = 1 ;CONTROL/A TEXTPL = 128. ;TEXT PLANE BIT ;ERROR MACRO DEFINATION .MACRO ERROR TEXT JSR R0,ERROR1 .ASCIZ @TEXT@ .EVEN .ENDM ERROR .PSECT GDAED ;WE ARE RELOCATABLE .SBTTL ENTRY POINT GDAED7:: TST (R5)+ ;SKIP ARG COUNT MOV @(R5)+,R0 ;GET FUNCTION TO PERFORM BLE 1$ ;ITS A BADDY 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$: ERROR DSPTBL: .WORD INIT, BGNPLT, MOVE, DRAW, ENDPLT, RLSDEV .WORD GETCHR,SETCOL,GIN ;NO SET-RGB OR SET-HLS YET TBLEND: .SBTTL INIT AND BGNPLT ; ;INITIALIZE - FUNCTION 1 ; INIT: .IF EQ OS-2 ;IF BLOODY TSX, THEN MOV #ON,R0 ;TELL TSX TO LEASE OUR TTY I/O ALONE EMT 375 .IFTF MOV 2(R5),R4 ;R4 ==> YA(1) CLR (R4)+ ;YA(1) = 0.0 CLR (R4)+ ; MEANS NO ERROR ON INIT. JSR PC,DOINIT ;INIT BUFFERS, ETC. JSR R4,INSERT .ASCII "1MMMM" ;1 CHAR COMMANDS, MODIFIED HEX .BYTE RST ;RESET TERMINAL .BYTE OPT,'2,'0 ;SELECT "CR" AFTER GIN .ASCII "15070:U" ;FORNT=5X7, HORZ=7, VERT=10, UNLINKED .BYTE 0 .EVEN BR BGNPL2 ;DO SAME AS BEGIN PLOT .IFT ON: .BYTE 1,120 .ENDC ;EQ OS-2 ; ;BGNPLT - FUNCTION 2 ; BGNPLT: JSR PC,DOINIT ;KILL ANY LEFT OVER GRAPHICS BGNPL2: MOVB #1,R1 ;SET CURRENT COLOR TO COLOR 1 JSR PC,CVT8B ;CONVERT TO MODIFIED HEX MOVB R0,CCOL1 ;SET HIGH 4 BITS CHARACTER MOVB R1,CCOL2 ;SET LOW 4 BITS CHARACTER JSR R4,INSEND ;REQUEST A GRAPHICS ERASE .BYTE ESC,SBC,'0,'0 ;SET BACKGROUND TO COLOR 0 .BYTE FF ;ERASE SCREEN AND RESET ANY SCROLLING .BYTE HOM,0 ;HOME ALPHA CURSOR .EVEN CLR XPOSN ;AND RESET X & Y POSN CLR YPOSN RTS PC ;DONE .SBTTL MOVE AND DRAW ; ;MOVE - FUNCTON 3 ; MOVE: JSR PC,MAKINT ;SCALE SCREEN CM COORD. TO GDU MOV NEWX,XPOSN ;SET NEW POSITION MOV NEWY,YPOSN SETPOS: MOVB #1,DOINGV ;SHOW MOVED RTS PC ;RETURN ; ;DRAW - FUNCTION 4 ; DRAW: JSR PC,MAKINT ;CONVERT SCREEN CM COORD. TO GDU CMPB DOINGV,#2 ;SEE IF IN A SERIES OF VECTORS BEQ ADDTO ;YES, JUST ADD THIS ONE STVCT: JSR PC,SETXY ;START A VECTOR AT XPOSN,YPOSN MOVB #2,DOINGV ;SHOW VECTOR MODE ADDTO: CMP BUFCNT,#BUFSIZ-10. ;SEE IF ROOM FOR MORE BPL STVCT ;NOPE, RESTART MOV NEWX,R0 ;CONVERT X,Y TO 4010 CODES MOV R0,XPOSN MOV NEWY,R1 MOV R1,YPOSN JSR PC,CVTXY RTS PC SETXY: CMP BUFCNT,#BUFSIZ-20. ;SEE IF ENOUGH ROOM LEFT IN BUFFER BLO 1$ ;YES JSR PC,PLTMT1 ;EMPTY BUFFER 1$: JSR R4,INSERT ;AND START A VECTOR .BYTE ESC,SEC ;SET COLOR TO GRAPHICS COLOR CCOL1: .BYTE '0 CCOL2: .BYTE '1 .BYTE GS,0 ;GO INTO TEK 4010 EMULATION FOR VECTORS .EVEN INCB USEDGS ;SHOW WE HAVE A GS IN THE BUFFER MOV XPOSN,R0 ;SET X MOV YPOSN,R1 ;AND Y JSR PC,CVTXY ;CONVERT X,Y TO 4010 CODES RTS PC ;ALL DONE NOW .SBTTL ENDPLT AND RLSDEV ; ;END OF PLOTTING (FLUSH BUFFER) - FUNCTION 5 ; ENDPLT: JSR PC,PLTMTY ;FORCE LAST BUFFER OUT JSR R4,INSEND ;ERASE SCREEN AND HOME ALPHA CURSOR .BYTE ESC,HOM ;HOME ALPHA CURSOR .BYTE SWM,'8,'0 ;WRITE MASK TO TEXT PLANE .BYTE ERS .BYTE SWM,'?,'?,0 ;RESTORE WRITE MASK TO ALL PLANES .EVEN RTS PC ; ;RELEASE DEVICE - FUNCTION 6 RLSDEV: JSR PC,PLTMTY .IF EQ OS-2 ;IF BLOODY TSX, THEN MOV #OFF,R0 ;TELL TSX "NORMAL" TTY I/O EMT 375 .IFTF RTS PC .IFT OFF: .BYTE 0,120 .ENDC ;EQ OS-2 .SBTTL GETCHR - GET CHARACTERISTICS ; ;GET DEVICE CHARACTERISTICS - FUNCTION 7 ; GETCHR: MOV (R5)+,R4 ;R4 ==> OUTPUT ARRAY MOV #CHRTBL,R0 ;R0 ==> OUR CHARACTERISTICS MOV #CWORDS,R1 ;R1 = NUMBER OF WORDS TO MOVE 1$: MOV (R0)+,(R4)+ ;MOVE CHARACTERISTICS SOB R1,1$ RTS PC CHRTBL: .FLT2 767.0, 33.9641, 25.4648 XGUPCM: .FLT2 30.12 YGUPCM: .FLT2 30.12 .FLT2 127.0 .FLT2 133.0 ;RASTER, ERASE WRITE, GIN AVAILABLE .FLT2 1.0 ;ALL NEED EVERY LINE FILLED CWORDS = <.-CHRTBL>/2 .SBTTL SELECT COLOR ; ;SELECT COLOR - FUNCTION 8 ; SETCOL: JSR PC,PLTMTY JSR PC,GETINT ;GET COLOR NUMBER CMP R1,#127. ;SEE IF LEGAL COLOR NUMBER BHI COLERR ;YES JSR PC,CVT8B ;MAKE MODIFIED HEX MOVB R0,CCOL1 MOVB R1,CCOL2 ;SET NEW COLOR RTS PC COLERR: ERROR .SBTTL GIN COMMAND COMMON ; ;GRAPHICS INPUT WITH PICK CHARACTER - FUNCTION 8 ; GIN: JSR PC,PLTMTY ;FLUSH BUFFER .IF EQ OS-3 ;RSX11M I/O 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 .ENDC ;EQ OS-3 (RSX11M) 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 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 #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 .PRINT #PROMPT ;ASK FOR A CURSOR READING MOV #BUFST,R1 ;PREPARE TO READ DATA INTO BUFFER BIS #TTSPC,@#JSW ;INHIBIT ECHO AND ENABLE LOWER CASE MOV #6,R2 ;GET 6 CHARACTERS 1$: .TTYIN ;GET A CHAR INTO R0 MOVB R0,(R1)+ ;INSERT CHARACTER INTO BUFFER DEC R2 ;COUNT CHARACTERS OUT BNE 1$ ;GO GET ANOTHER CHARACTER IF MORE BIC #TTSPC,@#JSW ;RESTORE ECHO AND ONLY UPPER CASE .IFTF MOV #BUFST,R3 ;SHOW WHERE STUFF IS 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 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 CVT8B: MOV R1,R0 ;COPY 8 BITS BIC #177760,R1 ;GET 4 LSB ADD #'0,R1 ;MAKE MODIFIED HEX .REPT 4 ASR R0 ;ALIGN 4 MSB INTO 4 LSB .ENDR BIC #177760,R0 ;ONLY 4 BITS ADD #'0,R0 ;MAKE MODIFIEX HEX RTS PC .SBTTL MAKINT SUBROUTINE MAKINT: MOV (R5)+,XADD ;PASS X ARG ON MOV (R5)+,YADD ;PASS Y ARG ON MOV #SCLR5,R5 ;PREPARE TO CALL A FTN CALC. ROUTINE JSR PC,GDAID RTS PC 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 MOVB #SEC,(R1)+ ;SET COLOR BACK TO TEXT COLOR MOVB #TEXTPL,(R1)+ ADD #3,BUFCNT ;SHOW CHARACTERS INSERTED 1$: MOVB #CTRLA,(R1)+ ;TERMINATE AED COMMAND SEQUENCE INC BUFCNT .IF NE OS-3 MOVB #CR,(R1)+ ;ONLY CR TO MAKE RT-11 HAPPY MOVB #200,(R1)+ ;200 BYTE TERMINATES WITH NOTHING .PRINT #BUFST ;DO THE I/O NOW .IFF JSR PC,DOQIO ;SEND TO THE TERMINAL .ENDC ;NE OS-3 DOINIT: CLRB DOINGV ;NOT DOING A VECTOR CLRB USEDGS ;NO GS IN NEXT LINE YET. CLR BUFCNT ;NO CHARS LEFT IN BUFFER ANY MORE MOV #BUFST,BINPTR ;RESTORE TO START OF BUFFER EXIT: RTS PC ;AND DONE .IF NE OS-3 ;RT11 OR TSX ERROR1: MOV R0,-(SP) ;SAVE POINTER TO ERROR CODE .PRINT #NAME ;OUTPUT DRIVER NAME MOV (SP)+,R0 ;RESTORE POINTER TO TEXT .PRINT ;MAKE .PRINT CALL TRAP 300+63. ;GIVE FORTRAN ERROR MESSAGE .IFF ;RSX11M ERROR1: MOV #BUFST,R1 ;R1 ==> ERROR MESSAGE AREA MOV #NAME,R2 ;R2 ==> START OF MESSAGE 1$: 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,$ERRLG ;TYPE OUR MESSAGE CMP (SP)+,(SP)+ ;CLEAN UP THE STACK TRAP +341 ;GIVE NON-FTN4PLUS ERROR MESSAGE .ENDC ;F4P NAME: .IIF NE OS-3 .BYTE 15,12 .ASCIZ 'GDAED7 - ' .EVEN INSERT: CLR INFLG ;SHOW INSERT BR PUT INSEND: MOV R4,INFLG ;SHOW INSEND PUT: MOV R1,-(SP) ;SAVE R1 MOV BINPTR,R1 ;GET POINTER TO BUFFER 1$: 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 0 GINY: .WORD 0 INFLG: .WORD 0 DOINGV: .BYTE 0 USEDGS: .BYTE 0 .EVEN BINPTR: .WORD 0 BUFCNT: .WORD 0 BUFST: .BLKB BUFSIZ .END