Programs several alternate CHR$ displays.
Appears on
Library tape of the Indiana Sinclair Timex User’s Group.
Source Code
10 CLS : PRINT ''"Enter:"''"GO TO 30 for inversion"''"GO TO 250 to revert to normal"''"GO TO 220 for inversion"''"GO TO 280 for New Chrs"''"GO TO 250 to revert to normal"''"GO TO 460 to destroy program" 20 STOP 30 REM Inversion 40 CLEAR 64367 50 BEEP .2,-10: BEEP .4,20 60 PRINT AT 10,5; PAPER 1; INK 7;"Please wait a minute..." 70 LET mem=64368 80 LET b=0: FOR a=15616 TO 16384 90 POKE mem+b,PEEK a 100 LET b=b+1: NEXT a 110 FOR a=32 TO 127: LET q=a-32:: LET b=q*8: LET c=mem+b 120 DIM d(8): LET b=1 130 FOR e=c TO c+7 140 LET d(b)=PEEK e 150 LET b=b+1: NEXT e 160 DIM e(8): FOR e=1 TO 8 170 LET e(e)=d(9-e) 180 NEXT e 190 LET b=1: FOR e=c TO c+7 200 POKE e,e(b) 210 LET b=b+1: NEXT e: NEXT a 220 POKE 23606,112: POKE 23607,250 230 BEEP .2,20: BEEP .4,-10 240 STOP 250 REM revert to normal 260 POKE 23606,0: POKE 23607,60 270 STOP 280 REM New Chrs 290 CLEAR 64367 300 BEEP .2,-5: BEEP .4,15 310 PRINT AT 10,5; PAPER 1; INK 7;"Please wait 20 seconds..." 320 LET b=0: FOR a=15616 TO 16384 330 POKE 64368+b,PEEK a 340 LET b=b+1: NEXT a 350 LET x=64368+264 360 REM change 520 to 264 in line 350 for upper case letters 370 RESTORE : FOR a=x TO x+206 380 READ b: POKE a,b 390 NEXT a 400 POKE 23606,112: POKE 23607,250 410 DATA 0,124,76,76,124,76,b,0,b,124,100,b,124,100,124,0,b,124,76,64,76,b,124,0,b,124,76,b,b,b,124,0,b,124,96,b,124,96,124,0,b,124,96,b,124,96,b,0,b,124,76,64,92,76,124,0,b,100,b,b,124,100,b,0,b,24,b,b,b,b,b,0,b 420 DATA 12,b,b,b,b,60,0,b,100,b,b,124,76,b,0,b,96,b,b,b,b,120,0,b,126,90,b,b,b,b,0,b,124,76,b,b,b,b,0,b,124,100,b,b,b,124,0,b,124,100,b,124,64,b,0,b,124,100,b,b,b,126,0,b,124,100,b,124,76,b,0,b,124,100,96,28,76,124,0,b,126,24,b,b,b,b,0,b 430 DATA 100,b,b,b,b,124,0,b,100,b,b,b,b,56,0,b,90,b,b,b,b,126,0,b,100,b,b,124,92,b,0,b,104,b,b,120,16,b,0,b,124,100,28,32,76,124 440 BEEP .2,15: BEEP .4,-5 450 STOP 460 REM destroy program 470 RANDOMIZE USR 0 480 DATA 0,124,76,b,124,76,b,0,b,124,100,b,124,100,124,0,b,124,76,64,76,b,124,0,b,124,76,b,b,b,124,0,b,124,96,b,124,b,124,0,b,124,96,b,124,96,b,0,b,124,76,64,92,76,124,0,b,100,b,b,124,100,b,0,b,24,b,b,b,b,b,0,b 490 REM *********************** NEW CHR$ *********************** 500 LOAD "NEW CHR$"CODE 64368,264 510 SAVE "NEW CHR$" LINE 10: REM SAVE "NEW CHR$"CODE 64368,264