Hi Alex,----- Original Message ----- From: "Alex Freed" <alexf@mirrow.com>
Yes. I have those plus the listing but there is no listing there for the diagnostic routines.
The diagnostics are located at $C600 (in the enhanced roms). If you have a look at page 48 of that pdf file (http://www.apple-iigs.info/doc/fichiers/appleiietechref4.pdf) you will see where they begin. Specifically, $C62E is the start of the TSTMEM routine which is the one which is producing the error message you are getting.
I had a quick look at the mem-test routine source, it doesn't use any 65c02 only opcodes that I can see.That should not be a problem - I'm trying to emulate a 65C02.Is it always bit #5 that fails with the enhanced rom set?No. Sometimes there are several "1" s. Sometimes just one.Does it still fail if you disable the alternate 64k bank?Didn't try that.
Happy to try your code out if you like? I have an S3-400 board as well as an Alter DE1 this end. Cheers, Leslie