8088 vs. 80c88

Allison ajp166 at bellatlantic.net
Sun Feb 22 21:17:32 CST 2009


>
>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
>> 
>> 




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