[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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