Path: utzoo!utgpu!water!watmath!clyde!att!mtuxo!mtgzz!drutx!druhi!med
From: med@druhi.ATT.COM (Myron Drapal)
Newsgroups: comp.sys.ibm.pc
Subject: Re: replacing a 8086 with V30
Summary: Works just great...
Message-ID: <3447@druhi.ATT.COM>
Date: 29 Aug 88 03:56:49 GMT
References: <162@bach@kulesat.uucp> <9522@cs.tcd.ie>
Organization: AT&T, Denver, CO
Lines: 34

In article <9522@cs.tcd.ie>, omahony@cs.tcd.ie (Donal O'Mahony - OMAHONY@cs.tcd.ie) writes:
> In article <162@bach@kulesat.uucp>, lily@kulesat.uucp writes:
> > 
> > Does anyone out there have any experience in replacing an Intel
> > 8086 processor by another in a PC-clone (Schneider in my case).
> > 
> I too am considering using a V30 in an Amstrad PC.  The ads in BYTE for
> V20/V30 claim a 10-40% speedup.  I presume that these processors
> execute some instructions faster than their Intel counterparts.
> Can some knowledgeable person say what the instructions are ?
> 
> Are there any serious incompatibilies?
> 
>  _______________________________________________________________________
> Donal O'Mahony        omahony@cs.tcd.ie
> Computer Science Dept., Trinity College, Dublin 2, Ireland
> _______________________________________________________________________

Absolutely none.  I'm writing this article on an Amstrad 1512 with
the 8086 replaced with a V30.  Absolutely no problems.  In fact, I've
replaced the DOS with the AT&T version for the 6300 (V3.2), and the only
problem I've had is the real-time clock.  I just wrote a simple patch
program to fix that.  I switched to AT&T 6300 DOS because I needed to add
a 3.5 inch floppy, and the DOS provided by Amstrad doesn't work properly
(e.g. driver.sys doesn't work as advertised).

Back to the V30... Noticed about a 30% improvement when I changed it.
With the recent posting regarding changing the refresh timing, I get
the same Norton SI as the AT&T 6300...

					Myron Drapal
					AT&T Bell Laboratories
					Denver
					att!druhi!med