Path: utzoo!utgpu!jarvis.csri.toronto.edu!helios.physics.utoronto.ca!ists!yunexus!xrtll!rsnider
From: rsnider@xrtll.UUCP (Richard Snider)
Newsgroups: comp.sys.m68k
Subject: Re: More on the generic 68000 system.
Message-ID: <389@xrtll.UUCP>
Date: 6 Feb 90 01:39:22 GMT
References: <8732@unix.SRI.COM>
Reply-To: rsnider@xrtll.UUCP (Richard Snider)
Organization: ISOTECH Computer Industries, Toronto, Canada
Lines: 24

In article <8732@unix.SRI.COM> henry@ginger.sri.com (Henry Pasternack) writes:
>
>PC bus, and basically configure the Intel chip as a co-processor?
>The advantage would be that the PC motherboard would intially
>serve as a development environment for the 68020, with a lot of

Don't do it!

The PC's IO bus is not only a pain since you have to make the
signals from your card (I assume you are proposing a card) look
like the intel mess, but it is also SLOW!  It almost wants
1 microsecond for each fetch (At 8MHz).  That is downright silly
since the 68020 supports a much higher read/write rate than the
IO bus in a PC could ever concieve of.

Not to mention, the GCC compilers available (which are free) will
not run on 80286 since they demand all 32 bits, so there goes the
low cost development environment.

If anything I would say the PC could make a nice IO device, like a
bootstrap loader.

                                                Richard Snider
                                                 rsnider@xrtll