Path: utzoo!utgpu!water!watmath!clyde!bellcore!decvax!decwrl!labrea!agate!pasteur!ames!ll-xn!husc6!uwvax!puff!avery
From: avery@puff.cs.wisc.edu (Aaron Avery)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Speed-up question
Message-ID: <1461@puff.cs.wisc.edu>
Date: 10 Mar 88 17:30:30 GMT
References: <8803090654.AA04873@cory.Berkeley.EDU> <386@coplex.UUCP>
Organization: U of Wisconsin CS Dept
Lines: 16

Well, first of all, to run the processor at a faster clock rate, you need to
get a processor which can go faster! The 68000 in the Amiga can only support
8 MHz. You would have to get a 12MHz 68000 or 68010, or a 16MHz 68010.
Now, the amiga's memory interface with the 68000 slot will not operate any
faster than it does now, as it's basically a synchronous interface. To support
any real speed increase, you need to supply the faster processor with a memory
interface which it can access at the higher clock rate. So, to do what you
wish, you probably want to design a 68010 processor board running at a 
higher clock rate, supply it some memory (however much you wish), understanding
that it will only function much faster out of this memory, and allow it to
access the Amiga's memory. If you wish to pursue this further, you may want
to contact Motorola, as they are very good about supplying examples of things
like memory interfacing to a 68010 processor. Good luck!

Aaron Avery (avery@puff.cs.wisc.edu)
	    ({seismo,caip,allegra,harvard,ihnp4}!uwvax!puff!avery)