P112 redesigned for Z280?
allisonportable at gmail.com
Wed Dec 12 10:14:45 CST 2018
On 12/12/2018 07:58 AM, David Griffith via cctalk wrote:
> My reply is at the bottom.
> Please put your reply there too.
> On Tue, 4 Dec 2018, ben via cctalk wrote:
>> On 12/4/2018 1:17 PM, Tony Nicholson via cctalk wrote:
>>> Hello David
>>> I saw your posting on the cctalk mailing list regarding RSX180.
>>> It is Hector Peraza that's been tinkering with this. He intends
>>> making the
>>> full source-code available via SourceForge or GitHub but is still
>>> on preliminary web pages and documenting etc. No doubt he will
>>> provide you
>>> with more details.
>>> I've been tinkering with a Z280 system designed by Bill Shen (the
>>> Z280RC on
>>> the RetroBrew web site at
>>> and have contacted Hector about porting it to the Z280.
>> That is the easy part, where is the 99 cent dumb terminal to go with it?
> That's got me thinking... Suppose I redesign the P112 board to take a
> Z280 CPU. Would you guys go for it? I'd like to come up with a way
> to use a socketed CPU or put a surface-mounted chip on a carrier board
> to allow greater versatility with playing with different Zilog chips.
I'd be interested in a Z280 system. I have a few of the jlead (socketed
format) chips of very late revision
I've built around. The design work I used was started by Tim Olmstead.
The RSX system would likely
run very well as Z280 offers larger memory, I&D space, supervisor/use,
and MMU so a real protected
space OS is possible.
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