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memchk.200
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2006-10-19
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32 lines
1 '************************
2 '* MEMCHK.CO *
3 '* by Paul Globman *
4 '* Copyright (c) 1988 *
5 '************************
10 FOR I = 63574 TO 63648
20 READ X:POKE I,X:SM=SM+X
30 NEXT
40 IF SM = 10354 THEN 60
50 PRINT"error in data":STOP
60 SAVEM"MEMCHK.CO",63574,63648,63574
1000 DATA 195,116,248,17,0,0,126,71
1010 DATA 47,79,119,126,185,112,194,146
1020 DATA 248,126,184,194,146,248,35,223
1030 DATA 194,92,248,195,158,248,17,116
1040 DATA 248,33,0,160,126,71,47,79
1050 DATA 119,126,185,112,194,146,248,126
1060 DATA 184,194,146,248,35,223,194,122
1070 DATA 248,195,89,248,205,69,79,205
1080 DATA 69,79,205,69,79,205,69,79
1090 DATA 195,69,79
1100 ' END OF DATA
1110 'This is a non-destructive test,
1120 'it tests all the bits of every
1130 'address in RAM, including the
1140 'addresses where MEMCHK.CO runs.
1150 'It tests reading and writing of
1160 'every address in RAM and if a
1170 'bad location is found it will
1180 'beep 5 times, if no problem is
1190 'found it will beep once!