24 Jan
2021
24 Jan
'21
8:48 a.m.
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Chris Zach via
cctalk
Sent: 24 January 2021 16:40
To: cctalk at classiccmp.org
Subject: Re: DEC Pro operating systems and MFM emulator
> Listening to these conversations make me really wish I had not given
> my 2 PRO's away.
I have two but neither of them works. I have made a couple of attempts to find the fault
but failed so far. One of them is quite high on my list of the next thing to look at
(again).
Rob
They are neat, but they are so god-damned slow. Compiles on the pro/380
with an RD52 are 1/4th the speed of an 11/83 with a 330mb ESDI disk.
It's to the point where I compile on the 83, then upload the results to the Pro
to run.
I wonder if compiling a true version of M+ could help: At least you could
dedicate memory as a disk cache to get around that slug of a controller in
there.
But the lack of CPU cache, 10mhz processor, extremely slow disk speed, and
the like really hurt the Pro.
CZ