Newsgroups: comp.sys.nsc.32k
Path: utzoo!utgpu!watserv1!watmath!watmath!dmason
From: dmason@uwaterloo.ca (Dave Mason)
Subject: Re: A summary of the setjmp problem
In-Reply-To: dlr@daver.bungi.com's message of 12 Feb 91 18:21:38 GMT
Message-ID: <DMASON.91Feb14130241@watmsg.uwaterloo.ca>
Sender: daemon@watmath.waterloo.edu (0000-Admin(0000))
Organization: /u/dmason/.organization
References: <m0j64dI-00005ZC@daver.bungi.com>
Date: 14 Feb 91 13:02:41
Lines: 12

In article <m0j64dI-00005ZC@daver.bungi.com> dlr@daver.bungi.com (Dave Rand) writes:
> The real problem is I/O on the 332 and 532. You must use a move instruction,
> followed by register-relative to get to the really high addresses:
>   MOVD	$ICU,r0		# load address of ICU (0xfffffe00)
>   MOVB	xx,0(r0)	# access the ICU
> Life is like that. Such a small price to pay for the benefit of tight
> code that you can get on the 32000.

Or map 0xfffff000 page to 0x1ffff000.  Thereafter, everything would be
reachable.  Any weird problems with this?

	../Dave