Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!umd5!eneevax!smaug
From: smaug@eneevax.UUCP (Kurt J. Lidl)
Newsgroups: comp.sys.amiga
Subject: Re: Chips
Summary: I've done that before!
Keywords: 68010 upgrade
Message-ID: <1567@eneevax.UUCP>
Date: 27 Jun 88 16:44:18 GMT
References: <3154@crash.cts.com>
Reply-To: smaug@eneevax.umd.edu.UUCP (Kurt J. Lidl)
Distribution: na
Organization: University of Merryland, Elec. Eng. Department
Lines: 44

In article <3154@crash.cts.com> johnk@pro-pac.CTS.COM (John Krause) writes:
>Hello I have an Amiga 2000 and would like to get a little more speed out of
>it. I have not opened it up yet to look at the exact motorola number on the
>CPU, but I am interested in upgrading the 68000. However I need some more
>info. What are the pros and cons to putting in a 68010? I have the latest
>Jameco catalog and they list several 68000 series chips.

I just did this upgrade (a 68010) about a week ago.  Here is what I
can tell you about it.  You want a 68010 chip, with a suffix of
L8 ro L10 (letter may vary).  This specifies the clock speed at which
the chip has tested up to.  For a standard b2000, the the L8 chip is
plenty fast enough (the Amiga run ~7.14Mhz).  The 68010 is the pin-exact
replacement for the 68000.

[stuff deleted about which chip to use]>
>Will all the software that runs under the 68000 with
>WB1.2 run with the 68010?

Unfortunately, no.  There is a thread on the newsgroup relating
the problems people (me amoung others) have had with specific
programs and with which chips.  I have tried to save these messages with
thehope of summerizing to the net, but only a few have made it here,
where comp.sys.amiga.tech does not yet dwell :-(.  At any rate, most
programs DO work correctly.  Also, some of the amiga luminaries on
the groups (dillon, etc) have posted things
about the nasty things that the Greenhills compiler did/does to
AmigaDOS projects (from my limited knowledge, I believe the Greenhills
compiler runs on a SUN and produces wonderfully optimized code!).

>BTW I have the mechanical ability to do the swap, but I don't have the
>technical knowledge of these chips. FYI the MC68010L10 is listed for $29.95.
>One other chip that caught my eye was an MC68008L8, what is it?

The 68008 is a 68000 in a slightly different form - it has a 8 bit data bus, which is great for those
who bread-board their own - but NOT what you want to stick in your Amiga.
>Thanks in advance!
>                                John


-- 
==================================================================
==  Kurt J. Lidl  (smaug@eneevax.umd.edu)	(301)454-6849	==
==  UUCP: [seismo,allegra]!umcp-cs!eneevax!smaug		==
========"It's after 3am, no point in going to sleep now..."=======