Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!cbmvax!bryce
From: bryce@cbmvax.commodore.com (Bryce Nesbitt)
Newsgroups: comp.sys.m68k
Subject: Re: New 68k? 68025? (16-bit version of 040)
Message-ID: <11425@cbmvax.commodore.com>
Date: 8 May 90 04:32:12 GMT
References: <111512@psuecl.bitnet> <213@demott.COM>
Reply-To: bryce@cbmvax (Bryce Nesbitt)
Organization: Commodore, West Chester, PA
Lines: 25

In article <213@demott.COM> kdq@demott.COM (Kevin D. Quitt) writes:
>
>>   [Plug a 16 bit 68040 into an Amiga]
>
>    Not quite that easy, unfortunately.  The interrupt stack frames are
>different, so you'll need to path the OS.

Nope.  None of the stack frames that matter to the Amiga are different on
the 68040:

		------frame types generated------
		M68020/30	$0,$1,$2,$9,$A,$B
		M68040		$0,$1,$2,$3,$7

$3 is for floating point (which requires software emulation code anyway).
$7 is for access errors, which are fatal anyway under traditional Amiga
systems.  The Amiga ROM is very flexible in dealing with the different
680XX series processors.

-- 
|\_/|  . ACK!, NAK!, EOT!, SOH!
{o O} .     Bryce Nesbitt, Commodore-Amiga, Inc.
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