[sebhc] Re: opcode emulation (was: HASL-8 Bug/Corruption)
Steven Parker
sp11 at hotmail.com
Thu May 13 10:21:45 CDT 2004
Lee says (regarding "unimplemented" opcodes):
>Careful; while they may be "don't cares" for the 8080, they are NOT for
>the Z80 or 8085! You would wind up with code that wouldn't work on an
>H89 or Z-100. And it was pretty common to put a Z80 CPU board in the H8.
I was definitely not suggesting anyone PROGRAM using these! Only that an
8080 emulator should handle them just like a real chip would.
By the way, the DAW emulator models the z80 configuration for the H8 (HA-8-6
CPU).
>> >> NOW - If only I can get my hands on the disk controller specs!
> >> Also, anyone got H-37/47/67 manuals?
>I have these for the H89, but not the H8. They "ought" to be the same,
>since the same code generally works in both.
They are already in the archives now, thanks to Jack! (including the 89
version of the -37).
Cheers,
- Steven
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