Path: utzoo!utgpu!watserv1!watmath!att!att!bu.edu!rpi!batcomputer!munnari.oz.au!brolga!bunyip.cc.uq.oz.au!iceman!cpca
From: cpca@iceman.jcu.oz (C Adams)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: RISC Amiga
Message-ID: <1178@iceman.jcu.oz>
Date: 1 Nov 90 02:12:52 GMT
References: <1156@iceman.jcu.oz> <22914@grebyn.com> <16105@hydra.gatech.EDU> <1990Oct30.233553.2944@ecst.csuchico.edu>
Organization: JCUNQ, Townsville, Qld, Australia
Lines: 25

In article <1990Oct30.233553.2944@ecst.csuchico.edu>, mrush@ecst.csuchico.edu (Matt "C P." Rush) writes:
> In article <16105@hydra.gatech.EDU> ken@dali.gatech.edu (Ken Seefried iii) writes:
> >RISC
> >processors very much lend themselves to emulating other machines
> >(within limits).  A RISC simulator of an Amiga, while probably not
> >easy, is certainly doable by reasonably sharp team.  Hell, it might be
> >easier than SoftPC since the 68k instruction set is so much cleaner
> >and more orthoginal that the Intel rubbish.
> 
> 	True, a 680x0 emulator would be easy, but the Amiga has those
> CUSTOM CHIPS.  Those would be a little trickier to emulate in software.
> (Not impossible, but the overhead to do it might be prohibitive).
> 

Why emulate them in software?  It should be possible to leave them
in hardware.  Data access to the chips is via memory accessed with
are mapped to the chips, so it should be able to work ok.  An
emulator for the 680X0 would be a simple task, and since most of the
OS is in C, a lot of the OS should be easily ported.

Actually, I'd love to work on a project like this. I wonder if
C= would lend me their source code :-)

Colin Adams        You need to have a woman, before you can have a Sun :-)
Email Address -    cpca@marlin.jcu.edu.au