Re: A look at the C-One (Commodore One) reconfigurable computer

[spike1@freenet.co.uk]

Dunny <paul.dunn4@ntlworld.com> did eloquently scribble:
> "Tobiflex" <gutobix@gmx.de> wrote in message 
> news:a38ebcab1e23d30ac494cb24208f3b2c$1@www.cconline.com.pl...
>> MagerValp napisa?:
>>
>>>>>>>> "D" == Dunny  <paul.dunn4@ntlworld.com> writes:
>>
>>> D> What's the compatibility like for the z80 side of things? Meaning
>>> D> the undocumented opcodes and flag behaviour?
>>
>> Yes and Yes. The Risc can run Z80-Software with undocumented Opcodes. Its 
>> full softwarecompatible but not cycle exact. The 6502-Software runs only 
>> with documented 6502 opcodes and any special C-One-Stuff Opcodes.
>> The Risc needs about 500LC's of the FPGA and needs support RAM of 64Kb for 
>> the Z80 and 6502 Tables.
> 
> This gets better. I may be interested in one of these - but would I be right 
> in saying that the DivIDE (Speccy expansion bus IDE interface and 
> programmable ROM) would not be compatible? Or does the C1 provide the speccy 
> expansion port too?

Doubtful dunny, after all, it's a different cpu, and the speccy expansion
slot was just most of the z80 pins with a few extra lines for power and
other stuff
-- 
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