15 Dec
2001
15 Dec
'01
11:01 p.m.
On December 15, ajp166 wrote:
I have some scans of an old BYTE Magazine article (July 1976 I think)
that details how to build a common interface for an arbitrary chunk of
core. I haven't really read it in-depth but I plan to someday. I can
put it online if anyone would like to see it.
-Dave
--
Dave McGuire
St. Petersburg, FL "Less talk. More synthohol." --Lt. Worf
I have a
Question for the other core users out there:
How would I test-signal a board, for demos, that is
just a core frame, IE one sacrificed from its stack
and sold at the e- flea market?
It's a non trivial thing to do. Core by definition is destructive
read out memory. So to demo a core you need to provide
the coincident current (x,y) and the inhibit/write/read signals
with the associated timing. Both the currents and the
timing are critical. takes a lot of stuff to do that. 
15 Dec
15 Dec
11:18 p.m.
Dave McGuire wrote:
On December 15, ajp166 wrote:
I have some scans of an old BYTE Magazine article (July 1976 I think)
that details how to build a common interface for an arbitrary chunk of
core. I haven't really read it in-depth but I plan to someday. I can
put it online if anyone would like to see it.
-Dave
I think that was a design for the 8080 and the S100 bus.
It was a really nice design too if I remember right. I remember
somebody doing a core-demo on the web. I think it used a iron washer
as the core. Since this is not high speed only the current is critical
here.
(Boy do I miss the early Bytes -- ordinary people designing and using
computers
-- not multi-billion $$$ bloatware companies -- )
Ben Franchuk --- Pre-historic Cpu's --
www.jetnet.ab.ca/users/bfranchuk/index.html
I have a
Question for the other core users out there:
How would I test-signal a board, for demos, that is
just a core frame, IE one sacrificed from its stack
and sold at the e- flea market?
It's a non trivial thing to do. Core by definition is destructive
read out memory. So to demo a core you need to provide
the coincident current (x,y) and the inhibit/write/read signals
with the associated timing. Both the currents and the
timing are critical. takes a lot of stuff to do that. 
11:47 p.m.
On Sun, 16 Dec 2001, Dave McGuire wrote:
I have some scans of an old BYTE Magazine article
(July 1976 I think)
that details how to build a common interface for an arbitrary chunk of
core. I haven't really read it in-depth but I plan to someday. I can
put it online if anyone would like to see it.
I'd definately be interested.
-- Pat
11:49 p.m.
I have some scans of an old BYTE Magazine article
(July 1976 I think)
that details how to build a common interface for an arbitrary chunk of
core. I haven't really read it in-depth but I plan to someday. I can
put it online if anyone would like to see it.
It Would help lots more Dave if you dug out that disk drive.
The mv3500 is still pretty useless w/o swap space.
John A.
8428
days inactive
8428
days old
3 comments
4 participants
participants (4)
-
allain＠panix.com -
bfranchuk＠jetnet.ab.ca -
mcguire＠neurotica.com -
pat＠purdueriots.com