Anyone make a script for testing 5101 CMOS RAMs? I envision something like this 6800.pod REGA (SET TO BEGINNING 5101 ADDRESS) TEST LOOP1 WRITE REGA = AF 'note that as 5101's only have 4 DATA lines you only set the half in use and the other to F in this case D4, 5, 6 & D7 are tested. READ REGA =AF WRITE REGA = 5F READ REGA = 5F IF REGA=256 GOTO TEST2 INCR REGA GOTO LOOP1 TEST2 REGA = BEGINNING 5101 REGB = 0001 LOOP2 WRITE REGA =REGB READ REGA = REGB INCR REGB IF REGA = 256 GOTO END GOTO LOOP2 END Gah, this is very rough, and I need time to review it (haven't fired it up), but any suggestions for a better RAM test would be appreciated. Testing the 4 bit RAM is not very nice. I'm looking for something that would give similar results to the Short RAM test and possibly the Long RAM test... John :-#)#