/TASK NAME: "D^100+"C&3777 /NAME: DC, DISPLAY A CHAR
/CREATED: 27-JUNE-75, JS+JV

/THIS IS AN EMULATOR TASK, IT IS CALLED BY THE
/BACKGROUND-EMULATOR ONLY:
/	TAD BJOB	/POINTER TO BG-DATA-AREA
/	JMS MONITOR	/DF = MONITOR FIELD
/	   CALL
/	   "D^100+"C&3777
/	  BUSY OR NOT IN SYSTEM, WAIT A WHILE AND TRY AGAIN
/	SZA CLA		/RETURN AFTER COMPLETION
/	 JMP BGERR	/AC NONZERO: ERROR
/	ETC.		/AC=0, NORMAL COMPLETION

/THE EMULATOR IS CALLED FROM THE BACKGROUND BY:
/	TAD (7
/	6770		/GIANT IOT, MEANS NOTHING
/	DATA
/	RETURN WITH AC=0

/DATA: CONTAINS AN X,Y SETTING OR THE CHAR.
/BIT 0 =0 & BIT 1 =0:  IT'S A 8 BIT CHAR
/BIT 0 =1: IT'S A X SETTING (FOR THE WHOLE PAGE)
/BIT 1 =1: IT'S AN Y SETTING
/BIT 2 =0: IT'S A POS SETTING
/BIT 2 =1: IT'S A NEG SETTING

/THE MODULE BEGINS WITH ERASING THE SREEN.
/AS LONG AS THE MODULE STAYS INCORE, IT WILL REMEMBER
/THE X- AND Y-LOCATIONS ON THE SCREEN.
/ON ^Z OR FF THE MODULE IS SWAPPED OUT, EACH NEXT CHARACTER WILLE MODULE IN CORE, WHICH 051
DILX=6053
DILY=605

DCUPC=ZTEM1
TABPNT=ZTEM2
CNT3=ZTEM3
CNT5=ZTEM4
CNT12=ZTEM5

/USES PAGE 0 : ZTEM1,2,3,4,5.
*200

	"D^100+"C&3777	/NAME: DC DISPLAY A CHAR ON 603 SCOPE
	600		/3 PAGES, NO CONNECTS
CHRTAB,	TABLE
XDCX,	DC	INIT
	0		/END OF LOAD 	//AC POINTS TO BGDATA-A TO USERS PROGRAM COUNT	//USE AUTOINDEX FOR QUICK TABLE USE
	TAD I AUTO10	//GTF OF USER
	AND C70		//MASK INSTR. FIELD
	TAD C6201	//MAKE CDF USERS INSTR. FIELD
	DCA DCUCDF
	DCA I AUTO10	//USERS AC = 0 AFTER COMPLETION
	TAD I DCUPC	//GET PC IN AC
	ISZ I DCUPC	//SET NORMAL RETURN
DCUCDF,	  HLT		//CDF USERS INSTR. F.
	JMS DEFER	//GET HIS DATA
	CDTOIF		/CHANGE DATA TO INSTR. FIELD
DC1,	JMP I XINIT	/OVERLAIED BY:
/	CLL RAL
	SPA SZL		/CHARACTER COMMAND ?
	 JMP I XDCX	/NO - TRY X-SETTING
	CLL RAR		/SET CODE ON THE RIGHT PLACE
	SNA
	 JMP DCEXIT	/0
	TAD (-240
	SNA
	 JMP SPACE	/SPACE
	TAD (-212+240
	SNA
	 JMP I XLFEED	/LF
	TAD M3	/(-215+212
	SNA
	 JMP CR		/CR
M777,	IAC	/TAD (-214+215
	SZA
	TAD (-232+214
	SNA
	 JMP SWAP	/^Z OR FF
	IAC		/AC=CHAR-231
	AND C77		/AC=CHAR+47&77
	DCA ZTEM6	/MULTIPLY BY 3
	TAD ZTEM6	/GIVES THE CODE IN THE TABLE
	CLL RAL
	TAD ZTEM6
	TAD CHRTAB
	DCA TABPNT	/NOW POINTS TO CHAR-CODE
	ACM3
	DCA CNT3
	TAD (-5
	DCA CNT5
NXTWRD,	TAD (-14
	D
	ISZ TABPNT
	DCA ZTEM6RAL
	DCA ZTEM6
	SNL
	ILX
	CLA
	TAD YREG
	DA ZTEM7
	ISZ ZTEM7
	 JMP .-1
	DIXY
NXT1,	ISZ CNT5
	 JMP SETX
	TAD (-5
	DCA CNT5
	TAD (-14
	TAD XREG
	DCA XREG
	ACM3
	TAD YREG
	DCA YREG
	JMP CH3
SETX,	CLA STL IAC RAL	/3
	TAD XREG
	DCA XREG
CH3,	ISZ CNT3
	 JMP NXTWRD
	TA
	DCA YREG
	ACM3
SPACE
	SKP
CR,	 TAD XSAVE
XREG
	TAD M777
	SPA CLA
	 JMP DCEXIT
	TAD M777	/LINE FULL, RESET X
	DILX
	DCA XREG
	JMP I XLFEED

DCEXIT,	JMS MONITOR
	   EXIT	/=RETURN+CLEAR

SWAP,	CLA
	JMS MONITOR
	   EXIT+SWPOUT

XSAVE,	-777
XREG,	-777
YREG,	740

PAGE
DCSAVE,	XSAVE
DCYREG,	YREG
XDCEXIT,DCEXIT
DCSWAP,	SWAP
DCCR,	CR
XDC1,	DC1
	0
DCX,	SNL		/X COORD SETTING ?
	 JMP DCY	/NO - TRY Y
COVL,	CLL RAL		/FOR SURE ONLY BIT 0 IS UP
	CLL
	SPA
	 IAC STL	/NEG: BIT0,1:=1
	RTR		/POS: BIT0,1:=0
	DILX
	DCA I DCSAVE
	JMP I DCCR
DCY,	CLL RAL		/Y SETTING
	CLL
	SPA		/SIGN ?
	 IAC STL	/NEG: BIT0,1:=1
	RTR		/POS: BIT0.1:=0
	JMP DCYSET

LFEED,	TAD I DCYREG
	TAD C700
	SPA
	 JMP I DCSWAP
	TAD M732
DCYSET,	DILY
	DCA I DCYREG
	JMP I XDCEXIT

INIT,	DCA DCTEM
	TAD DCTEM	/FIRST SEE IF IT ISN'T A FF OR ^Z
	TAD M232
	SZA
	TAD C16	/(232-214
	SNA CLA
	 JMP I DCSWAP	/YES, DON'T ERASE TWICE
	TAD C30		/SET STORE+ERASE
	DILE
	JMS MONITOR
	   STALL
	   DGNTICK^3%5	/0,6 SECOND
TER STALL
	DILE		/SET SEN.
	TAD COVL
	DCA I X
	JMP I XDC1
DCTEM,	0,	700
M232,	-232
M732,	-732

IFZERO .-500&4000 <TABERR,XERROR /.MUST BE .LE. 500>
*500
TABLE,	4305;2102;0410	/Y
	7604;2104;2076	/Z
	4040;4102;200	/[
	4101;0101;0102	/\
	1604;1020;4116	/]
	1052;5102;400	/^	/SPATIE
	1020;4102;0012453;7257;5224	/#
	35574;2756	/%
	3112;2312;2342;410;1010	/(
	1010;1020;2210	/)
	125;6667;2500	/*
	20;4762;400	/+
	0;2;420		/,
	0;760;0		/-
IFNZRO .-577 <LOCAT,XERROR /LOCATION 600 MUST BE ZERO >
	0;0;20		/.
	210;4102;1040	//
	3506;3534;6134	/0
	1060;4102;0434	/1
	3506;1144;3076	/2
	3504;1340;6134	/3
	0421;0411;3704	/4
	7703;6020;4174	/5
	0210;4350;6134	/6
	7610;4204;1020	/7
	3506;1350;6134	/8
	3506;1361;0460	/9
	0;2;400		/:
	0;2;420		/;
	0421;0404;0404	/<
	3;7017;4000	/=
	2020;2021;0420	/>
	3110;4102;10	/?
	3527;3675;6734	/@
	1052;1437;6142	/A
	7506;1750;6174	/B
	3506;410;2134	/C
	7506;1430;6174	/D
	7702;0750;2076	/E
	7702;0750;2040	/F
	3506;0413;6134	/G
	4306;1770;6142	/H
	3420;4102;0434	/I
	0204;1020;6134	/J
	4312;4612;2242	/K
	4102;0410;2176	/L
	4356;5430;6142	/M
	4346;5532;6342	/N
	3506;1430;6134	/O
	7506;1750;2040	/P
	3506;1432;6336	/Q
	7506;1752;2242	/R
	3506;0340;6134	/S
	7620;4102;0410	/T
	4306;1430;6134	/U
	4306;1430;5210	/V
	4306;1430;6524	/W
	4305;2105;210 <TOOLONG,XERROR>/.<=10