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Re: Ultima I--space travel
On Feb 19, 9:57 pm, "Mark Percival" <perc...@gmail.com> wrote:
> Actually the ROMs isn't the problem either. The problem is that the
> section of code in question uses an undocumented opcde. The original
> game works with a 6502 but the opcode was changed with the 65c02 and
> thus the bug. I posted the fix that Nick mentioned 10 years ago.
> Wow....time goes fast!
And that should work ... in the *next* release of AppleWin! Oops, I
didn't realise the undocumented opcode support wasn't in the wild yet.
Time does indeed fly. It's been nearly 12 years since I posted my
summary document of undocumented opcodes to this newsgroup. ;-)
Cheers,
Nick.