Path: utzoo!attcan!brian
From: brian@attcan.UUCP (Brian Musker)
Newsgroups: comp.os.cpm
Subject: Re: CP/M Emulator
Message-ID: <11342@attcan.UUCP>
Date: 10 Apr 90 13:03:50 GMT
Reply-To: brian@attcan.UUCP (Brian Musker)
Distribution: na
Organization: AT&T Canada Inc., Toronto
Lines: 24

Not too sure if my last message got out... (postnews did a core dump!)

For the party interested in a cp/m emulator, i wrote an 8080 emulator
in C, with a pseudo clock, tty, disk, and dma controller, and i ported
cp/m 3.0 to this pseudo-machine. It runs every 8080 cp/m application i
have tried so far, and it has run unchanged on both an 80386 and a
WE32200 platform, so i suspect the code would work fine on a 68000
architecture.

The three drawbacks to this piece of code are:

	1/ Terminal i/o is fairly slow. I have tried a variety of buffering
	techniques, but few seem to have any useful impact.

	2/ It really needs to support the Z80 ops.

	3/ If i distribute it, i can only supply the sources for the emulator,
	and the cp/m bios drivers, i.e. you had better have a configurable
	cp/m on hand to link these drivers into.

If you would like to get your hands on this code, or just want more data,
please mail or post me...

Brian Musker