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10 CMDREG%=&BF
20 DATREG%=&BE
30 REM
40 DATA &02, &C2, &0E, &FF, &03, &76, &03, &0E
50 DIM registers%(8)
60 FOR i%=0 TO 7
70 READ registers%(i%)
80 OUT CMDREG%, registers%(i%)
90 OUT CMDREG%, i% OR &80
100 NEXT i%
200 PRINT "populate name table"
210 NameStart% = &3800
220 NameLength% = &300 - 1
230 OUT CMDREG%, NameStart% AND &FF
240 OUT CMDREG%, INT(NameStart% / &100) OR &40
250 FOR i% = 0 TO NameLength%
260 OUT DATREG%, i% MOD &100
270 NEXT i%
400 PRINT "color table"
410 CStart%=&2000
420 CLength%=&1800 - 1
430 OUT CMDREG%, CStart% AND &FF
440 OUT CMDREG%, INT(CStart% / &100) OR &40
450 FOR i% = 0 TO CLength%
460 OUT DATREG%, &D0
470 NEXT i%
510 PRINT "Populate the pattern table"
520 PatternStart% = &0000
530 PatternLength% = &1800 - 1
540 OUT CMDREG%, PatternStart% AND &FF
550 OUT CMDREG%, INT(PatternStart% / &100) OR &40
560 FOR i% = 0 TO PatternLength%
570 OUT DATREG%, &00
580 NEXT i%
600 PROC_point(0, 0)
610 PROC_point(128, 96)
620 END
1000 DEF PROC_point(x%, y%)
1010 byteAddress% = (x% AND &F0) + ((y% DIV 8) * 256) + (y% MOD 8)
1020 value% = 2^(7-(x% MOD 8))
1030 OUT CMDREG%, byteAddress% AND &FF
1040 OUT CMDREG%, (byteAddress% DIV &100) OR &40
1050 OUT DATREG%, value%
2000 ENDPROC
10 FOR x% = 0 TO 10
20 FOR y% = 0 TO 10
30 byteAddress% = (x% AND &F0) + ((y% DIV 8) * 256) + (y% MOD 8)
40 PRINT x%; "x"; y%; " "; byteAddress%
45 PRINT "V: "; 2^(7-(x% MOD 8))
50 NEXT y%
60 NEXT x%
10 FOR X% = 0 TO 64
20 FOR Y% = 0 TO 64
30 PLOT X% * 5, Y% * 5
35 PRINT
40 NEXT Y%
50 NEXT X%
10 CMDREG%=&BF
20 DATREG%=&BE
30 INPUT X%
32 INPUT Y%
40 PROC_point(X%, Y%)
50 REM PLOT X% * 5, Y% * 5
54 PRINT
55 PRINT "---"
70 GOTO 30
1000 DEF PROC_point(x%, y%)
1010 byteAddress% = (x% AND &F8) + ((y% DIV 8) * 256) + (y% MOD 8)
1020 value% = 2^(7-(x% MOD 8))
1023 PRINT byteAddress%, value%
1030 OUT CMDREG%, byteAddress% AND &FF
1040 OUT CMDREG%, (byteAddress% DIV &100) OR &40
1050 OUT DATREG%, value%
2000 ENDPROC
1 CMDREG%=&BF
2 DATREG%=&BE
10 CLG
20 REM PROC_line(0, 0, 98, 16)
30 CLG
40 REM PROC_line(0, 16, 98, 0)
50 CLG
60 REM PROC_line(98, 16, 0, 0)
70 CLG
80 REM PROC_line(98, 0, 0, 16)
90 CLG
100 PROC_line(0, 0, 80, 50)
999 END
1000 DEF PROC_point(x%, y%)
1005 REM PRINT x%, y%
1010 byteAddress% = (x% AND &F8) + ((y% DIV 8) * 256) + (y% MOD 8)
1020 value% = 2^(7-(x% MOD 8))
1023 REM PRINT byteAddress%, value%
1030 OUT CMDREG%, byteAddress% AND &FF
1040 OUT CMDREG%, (byteAddress% DIV &100)
1050 value% = IN(DATREG%) OR value%
1060 OUT CMDREG%, byteAddress% AND &FF
1070 OUT CMDREG%, (byteAddress% DIV &100) OR &40
1080 OUT DATREG%, value%
2000 ENDPROC
3000 DEF PROC_line(X1%, Y1%, X2%, Y2%)
3001 IF X1% < X2% THEN 3010
3005 X%=X1% : Y%=Y1% : X1% = X2% : Y1% = Y2% : X2% = X% : Y2% = Y%
3010 PROC_point(X1%, Y1%)
3020 PROC_point(X2%, Y2%)
3022 IF Y1% > Y2% ystep%=-1 ELSE ystep%=1
3030 S% = ABS((X2% - X1%) DIV (Y2%-Y1%))
3032 PRINT ABS((X2% - X1%) DIV (Y2%-Y1%))
3034 PRINT ABS((Y2% - Y1%) DIV (X2%-X1%))
3040 PRINT S%
3050 IF X1% >= X2% THEN GOTO 4000
3060 PROC_point(X1%, Y1%)
3070 REM XS% = XS% + 1
3080 X1% = X1% + 1
3090 IF (X1% MOD S%) = 0 THEN PROC_point(X1%, Y1%) : Y1% = Y1% + ystep%
3100 GOTO 3050
4000 ENDPROC
1 CMDREG=&BF
2 DATREG=&BE
10 CLG
20 REM PROC_line(0, 0, 98, 16)
30 CLG
40 REM PROC_line(0, 16, 98, 0)
50 CLG
60 REM PROC_line(98, 16, 0, 0)
70 CLG
80 REM PROC_line(98, 0, 0, 16)
90 CLG
100 PROC_line(0, 0, 80, 50)
999 END
1000 DEF PROC_point(x, y)
1005 REM PRINT x, y
1010 byteAddress = (x AND &F8) + ((y DIV 8) * 256) + (y MOD 8)
1020 value = 2^(7-(x MOD 8))
1023 REM PRINT byteAddress, value
1030 OUT CMDREG, byteAddress AND &FF
1040 OUT CMDREG, (byteAddress DIV &100)
1050 value = IN(DATREG) OR value
1060 OUT CMDREG, byteAddress AND &FF
1070 OUT CMDREG, (byteAddress DIV &100) OR &40
1080 OUT DATREG, value
2000 ENDPROC
3000 DEF PROC_line(X1, Y1, X2, Y2)
3001 IF X1 < X2 THEN 3010
3005 X=X1 : Y=Y1 : X1 = X2 : Y1 = Y2 : X2 = X : Y2 = Y
3010 PROC_point(X1, Y1)
3020 PROC_point(X2, Y2)
3022 IF Y1 > Y2 ystep=-1 ELSE ystep=1
3030 S = ABS((X2 - X1) / (Y2-Y1))
3032 PRINT ABS((X2 - X1) / (Y2-Y1))
3034 PRINT ABS((Y2 - Y1) / (X2-X1))
3040 XS = 0 : PRINT S
3050 IF X1 >= X2 THEN GOTO 4000
3060 PROC_point(X1, Y1)
3070 XS = XS + 1
3080 X1 = X1 + 1
3090 IF XS > S THEN XS = 0 : PROC_point(X1, Y1) : Y1 = Y1 + ystep
3100 GOTO 3050
4000 ENDPROC
1 CMDREG%=&BF
2 DATREG%=&BE
5 CLG
10 A%=0
20 REM PROC_point(1, 1)
30 REM PRINT FN_point(1, 1)
40 REM CLG
45 A = 20 * 5 : B = 1024 - 20 * (1024 / 192)
50 MOVE 0, 1023 : DRAW A, 1023 : DRAW A, B : DRAW 0, B : DRAW 0, 1023
60 PROC_fill(2, 2)
70 END
500 DEF PROC_fill(x, y)
502 A% = A% + 1 : PRINT A%
505 IF x < 0 OR y < 0 THEN GOTO 600
510 IF FN_point(x, y) THEN GOTO 600
515 REM PRINT "A", x, y, FN_point(x, y)
520 PROC_point(x, y)
530 PROC_fill(x - 1, y)
540 PROC_fill(x + 1, y)
550 PROC_fill(x, y - 1)
560 PROC_fill(x, y + 1)
570 GOTO 900
600 REM PRINT x, y
900 A% = A% - 1
910 ENDPROC
999 END
1000 DEF PROC_point(x%, y%)
1005 REM PRINT x%, y%
1010 byteAddress% = (x% AND &F8) + ((y% DIV 8) * 256) + (y% MOD 8)
1020 value% = 2^(7-(x% MOD 8))
1030 OUT CMDREG%, byteAddress% AND &FF
1040 OUT CMDREG%, (byteAddress% DIV &100)
1050 value% = IN(DATREG%) OR value%
1060 OUT CMDREG%, byteAddress% AND &FF
1070 OUT CMDREG%, (byteAddress% DIV &100) OR &40
1080 OUT DATREG%, value%
2000 ENDPROC
3000 DEF FN_point(x%, y%)
3010 byteAddress% = (x% AND &F8) + ((y% DIV 8) * 256) + (y% MOD 8)
3020 value% = 2^(7-(x% MOD 8))
3030 OUT CMDREG%, byteAddress% AND &FF
3040 OUT CMDREG%, (byteAddress% DIV &100)
3050 V% = IN(DATREG%)
3060 REM PRINT : PRINT "V", V%, value%
3070 value% = V% AND value%
3080 IF value% = 0 THEN value% = FALSE ELSE value% = TRUE
3090 =value%