Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!noao!groves
From: groves@noao.edu (Lee Groves)
Newsgroups: comp.sys.mac
Subject: IIe emulation on a Mac
Message-ID: <1029@noao.UUCP>
Date: 1 Feb 89 21:16:54 GMT
Organization: National Optical Astronomy Observatories, Tucson, AZ
Lines: 27

I know that the justification is arguable, but it would seem that Apple has
given us the missing piece in the quest for an Apple ][ emulator.

The IIx and SE/30 provide for the reading and writing of 3 1/2 inch ProDOS
formatted disks.  It would seem that one should be able to write a 65C02
emulator in assembly for the 68030 that would run at the same speed as
the 1 MHZ version in the ][e.  

The code required to drive peripherals (except video & keyboard) is on the
cards themselves, so one could, on an access to the I/O region, trap out to
virtual "devices" that would take advantage of the Mac's resources, and remain
transparent to the 65xx code.

The video could be handled by a deamon that scrolled through the ][e video
memory and mapped into the grafport of the ][e process.

All the pieces are there.  So, who's going to do it?

Lee



-- 
Lee J. Groves, National Optical Astronomy Observatories, Tucson, AZ
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