23 Aug
1999
23 Aug
'99
6:03 p.m.
<SNIP!>
A few emulators like MYZ80 do infact support all the
z80 ops faithfully
but thats an example of a well tested package and a stable set of opcodes.
The 6502(and cmos versions) are legions for odd and spotty opcodes off the
basic set. I know the 6800 family vary some as do the 6809. It's my
understanding it was years before the 68000 instruction set was stable.
Just for the record, most of the Commodore 64 emulations out there support
every last undocumented opcode of the 6510...probably because there are a few
programs which depend on them. I just wish the VIC-II was as well
documented...there are still a few tricks this chip can do that the emulators
can't...
Emulators, useful, interesting but NOT the real thing.
Agreed.
Cheers,
Chris