22 Feb
2009
22 Feb
'09
7:17 p.m.
Subject: Re: 8088 vs. 80c88
From: "bfranchuk at jetnet.ab.ca" <bfranchuk at jetnet.ab.ca>
Date: Sun, 22 Feb 2009 18:54:49 -0700
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at
classiccmp.org>
Chuck Guzis wrote:
> On 21 Feb 2009 at 15:09, Les Hildenbrandt wrote:
>
>>> The problem with the V20's 8080 emulation was that it was buggy (I
>>> have a few MicroNotes on the subject and can even claim to have
>>> discovered one of the bugs).
>> I wonder if it was only cetain chips. I ran cp/m 80 on a v20 for years.
I also ran it on V20 inserted in the Leading Edge model D, not only did it help
dos level stuff by a few percent it ran every thing 8080 I'd thrown at it.
> Try running a program in CP/M with JRT Pascal 1.0
on a V20. CPU bugs
> can be very subtle.
Your kidding tight? ;)
JRT pascal was fairly buggy itself and it was till arond V3 that it stopped being
noticalbly so.
Allison
Well what are the bugs?
> Cheers,
> Chuck
>
>