11 Mar
2003
11 Mar
'03
10:21 p.m.
----- Original Message -----
From: "Dwight K. Elvey" <dwightk.elvey(a)amd.com>
To: <cctalk(a)classiccmp.org>
Sent: Monday, March 10, 2003 11:26 AM
Subject: Intel 4004 was: New To List and PDP8 Question
I have a SIM4 but mine doesn't have the nice LCD read out that
yours has. I wrote an assembler as well. Mine is single pass
but I can still do forward references by having the lables self
resolve them selves as their location is assigned. I also have
a simualtor that I wrote. It is built around the SIM4 board.
Wow Dwight, a real SIM4. Is it the -01 or -02. I think the main difference
was the number of PROMs it would hold. Do you also have the box with the
mating connectors? I think it was used to interface the SIM4 to another
board for programming 1702s. Oh what THESE would fetch on eBay. All joking
aside, I hope you wouldn't do that. I know I couldn't.
Most 4004 systems have a lot of hardware dependencies since
not all used things like the 4002's for RAMs or the normal
I/O methods.
I toyed with the idea of making a SIM4 clone but I would have had to do too
many part substitutions. It wouldn't have been much of a clone. And I still
wouldn't have been able to execute out of RAM.
Right?
Bill