Hello Tomas, * On Sun, Apr 15, 2018 at 09:14:23PM +0200 Tomas Vondracek wrote: > But there is a little progress. Disassembling revelead different offsets in > tools and ROM. > E.g. tools calls: > JSR $89DB > > but correct (and working) according to ROM is: > JSR $89D9 Is the SW stored in an EPROM? $89DB and $89D9 differ in one bit only. If the "0" is not read correctly anymore, it can show up as a "1", that's typical for EPROMs. Oh, and it also typical for EPROMs if they are used with less voltage than they should have. Regards, Spiro. -- Spiro R. Trikaliotis http://www.trikaliotis.net/Received on 2018-04-15 22:03:31
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