microcoding a PC into a PDP-11 (was: RE: Classic Computers vs. Classic Computing)

From: Jonathan Engdahl <engdahl_at_cle.ab.com>
Date: Tue Sep 18 10:59:37 2001

> -----Original Message-----
> [mailto:owner-classiccmp_at_classiccmp.org]On Behalf Of emanuel stiebler
> Jonathan Engdahl wrote:
> sizes. Prices are
> > about $100 per meg. Something called "flash DIMM" shows up on
> >
> Looking at this prices, what happened to the old 3.5" floppy drive ?
> If you can start a complete/compressed linux/firewall from there, should
> be enough to start an emulator.
> And, BTW, not all of the pc motherboard chip sets supports FLASH DIMM
> (any ?),
> so you're stuck then with some motherboards.

Very good point. I was thinking that it would be nice to have a machine that
was a PDP-11 as soon as you flipped on the power, but probably not worth the
cost and hassle of the flash. Didn't some of the VAXen boot their microcode
from a floppy?

Also, that way you could have one microcode floppy for each classic

I think that my emulator idea can be made to work under Win32. It appears
there are facilities allowing an application program to catch access

Jonathan Engdahl???????????????? Rockwell Automation
Principal Research Engineer????? 24800 Tungsten Road
Advanced Technology????????????? Euclid, OH 44117, USA
Euclid Labs????????????????????? engdahl_at_cle.ab.com  216-266-6409
Received on Tue Sep 18 2001 - 10:59:37 BST

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