Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!cs.utexas.edu!rutgers!mcdchg!motmpl!ron
From: ron@motmpl.UUCP (Ron Widell)
Newsgroups: comp.arch
Subject: Re: 88k - what bug level?
Summary: No bugs that I know about
Message-ID: <1518@motmpl.UUCP>
Date: 9 Feb 90 17:18:41 GMT
References: <2091@crdos1.crd.ge.COM>
Reply-To: ron@motmpl.UUCP (Ron Widell)
Organization: Motorola Semiconductor, Minneapolis, MN.
Lines: 29

In article <2091@crdos1.crd.ge.COM> davidsen@crdos1.crd.ge.com
			(bill davidsen) writes:
> [cut to the chase]
>get around the bugs in the 88k. I believe that there were three chip
> [...]
>  I *assume* that before the production model shipped there was a clean
>version of the 88k, but I have lost my inside connection, due to someone
>
>  What's the scoop on this chip?

Unless there have been new bugs reported that I haven't heard about :-(,
The C82N mask set for the MC88100 (1.2 micron DLM) has no errata. This
set came out of the mask shop about July of '89. The previous mask (4C64D)
had two problems (bugs):
    1) DIV and DIVU with 0 divisor would not *always* take divide-by-zero
exception.
    2) Certain bit patterns could cause an aberrant LSB when rounding to
single-precision floating point.

The MC88200 has been clean since Jan, '89. It is also currently being
processed in a 1.2 micron DLM technology.

Both devices are scheduled for imminent release in 1.0 micron geometries,
so we may soon see 40MHz (Maybe even 50?) devices.
-- 
Ron Widell, Field Applications Eng.	|UUCP: {...}mcdchg!motmpl!ron
Motorola Semiconductor Products, Inc.,	|Voice:(612)941-6800
9600 W. 76th St., Suite G		| I'm from Silicon Tundra,
Eden Prairie, Mn. 55344 -3718		| what could I know?