Intel 4040 - was Intel 4004 simulator and tools

From: Allison J Parent <allisonp_at_world.std.com>
Date: Wed Feb 10 21:21:34 1999

<I'm getting this opinion straight from Ted Hoff himself. I don't know
<where my notes are on this and I can't remember the details, but I think
<there are some significant differences between the 4040 and 4004. The
<8008 was supposed to have been based on the 4004 architecture, extending
<it with more instructions and such. The 4040 was, I think, a whole
<different design by a different team inside Intel.

The 4004 and 4040 are very similar. the 4040 adds a few things like extra
registers. The 8008 is really a 4040 stretched to 8bits. The 8080
is really pretty close to the 8008 though not object code compatable.

I have the intel books on them so it's not like I didn't check. ;)

Allison
Received on Wed Feb 10 1999 - 21:21:34 GMT