12 Dec
2018
12 Dec
'18
7:58 a.m.
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:
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.
--
David Griffith
dave at 661.org
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
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 working
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
https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc )
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?
Ben. 
12 Dec
12 Dec
11:14 a.m.
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:
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.?
Allison
On 12/4/2018 1:17 PM, Tony Nicholson via cctalk
wrote:
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.
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
working
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
https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc
)
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?
Ben.
4:05 p.m.
New subject: P112 redesigned for Z280? terminal
That is the
easy part, where is the 99 cent dumb terminal to go with it?
Ben.
11:51 p.m.
New subject: P112 redesigned for Z280? terminal
This?
http://searle.hostei.com/grant/MonitorKeyboard/index.html
It's much more efficient for a poster to provide URLs than for umpteen
others to have to go off searching.
You're welcome.
On Wed, Dec 12, 2018 at 2:04 PM allison via cctalk <cctalk at classiccmp.org>
wrote:
Ben,
look at Grant Searle's display system, not the Z80 CP/M but his three
chip display system.
Take two Atmel Atmega328Ps and a 74ls166 monitor and P2 keyboard required.
That yields a 24line x 80char display that is a subset of Vt100/Ansii.
Its not 99cents but
at list prices under 7$ Monitor and keyboard not included.
Or you can use an arduino with a 40char by 4 line LCD.
Allison
That is the easy part, where is the 99 cent dumb
terminal to go with it?
Ben.
11:07 p.m.
On 12/12/18 6:58 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:
David,
??????? Count me in on this one... Definitely sounds interesting...
??????? -- Mike
On 12/4/2018 1:17 PM, Tony Nicholson via cctalk
wrote:
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.
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
working
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
https://www.retrobrewcomputers.org/doku.php?id=builderpages:plasmo:z280rc
)
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?
Ben. 
21 Dec
21 Dec
4:18 a.m.
On 12/12/18 6:58 AM, David Griffith via cctalk wrote:
> 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 would be interested. I have a few Z280 laying around (the ones that
go into a socket).
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5 comments
5 participants
participants (5)
-
allisonportable＠gmail.com -
dave＠661.org -
jim.manley＠gmail.com -
kspt.tor＠gmail.com -
mike.niswonger＠cox.net