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Re: Multiprocessor 65816???
- Subject: Re: Multiprocessor 65816???
- From: Eric Smith <eric-no-spam-for-me@brouhaha.com>
- Date: 26 Dec 2003 22:23:36 -0800
- Newsgroups: comp.sys.apple2
- Organization: Eric Conspiracy Secret Labs
- References: <Xm6Hb.3529$9W5.3256@fe2.texas.rr.com>
- Sender: eric@ruckus.brouhaha.com
- User-agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2
- Xref: archiver1.google.com comp.sys.apple2:1981
"Bryan Parkoff" <bryan.nospam.parkoff@nospam.com> writes:
> I am surprised that there is no virtual memory existence for Apple IIgs
> since Abort feature is available. Do you think that GS/OS can implment to
> use Abort feature so visual memory can be enabled?
Proper virtual memory would require an MMU in addition to the abort
feature.
> I wonder why COP instruction is never used. It may be useful for
> floating.
Not particularly useful, since no coprocessor was ever sold.