Re: Hardware emulation of 6509 using 6502?

From: Michał Pleban <*lists_at_michau.name*> Date: Fri, 06 Jul 2018 11:54:23 +0200 Message-ID: <5B3F3C4F.9020607@michau.name> · lists_at_michau.name

Jim Brain wrote:

> It looks like the test is not failing in the same spot all the time.  It
> looks like a transient error.  Any chance to extend your program to do a
> bunch of write and reads and report any issues?  It would help to see if
> there is a stuck bit or something else.

Transient errors are hardest to debug... But I presume you made a trace
then, can you show it?

I can extend the test to read or write a value several times (or to
repeat the whole test XX times in a row), but a live trace from the
KERNAL will be the best starting point.

Regards,
Michau.