Path: utzoo!utgpu!attcan!uunet!seismo!esosun!ucsdhub!loral!dml
From: dml@loral.UUCP (Dave Lewis)
Newsgroups: comp.sys.amiga
Subject: Re: CP/M
Summary: Found old listings
Keywords: CP/M CPM AMIGA
Message-ID: <1814@loral.UUCP>
Date: 26 Jul 88 15:52:16 GMT
References: <1191@ndmath.UUCP>
Reply-To: dml@loral.UUCP (Dave Lewis)
Followup-To: comp.sys.amiga
Organization: Loral Instrumentation, San Diego
Lines: 28

In article <1191@ndmath.UUCP> rn999@ndmath.UUCP (Ross Niebergall) writes:
>I have been looking for a CP/M emulator to use on the Amiga with mixed results.
>...to do Z80 simulation.  If anyone has one or knows where to get

 ..and just this weekend I was digging out and restacking a bunch of old
magazines. In my stack of Dr. Dobb's Journals I found exactly that -- an 8080
emulator in 68000 assembly language. The beast was written to run on CP/M 68000
(geccch) but it might not be too hard to get it to run on the Amiga...maybe.
It uses a jump table and 256 instruction emulation routines. Some, but not all,
Z-80 instructions are also simulated. The author says it has about the same
performance as a 1.4 meg Z-80 when run on an 8 meg 68000 (the original Z-80 ran
at 2.5 megs) although some programs slow it down more than others.

  This listing was split over the Jan, Feb and March 1986 issues of Dr. Dobb's
Journal. I've got 'em sitting on my Amiga desk and I'm gonna type them in one
of these days, really I am. I'll post it to the net if I ever get it running.

  By the way, is anybody out there using Aegis Draw Plus? I wrote a short
program that generates regular n-sided polygons and outputs them in Draw+
part format and if there's enough interest out there I'll post it. Also, I'm
using Draw+ for PCB layout; is anybody else out there doing that? (I'm using
it for schematics, graphic art, woodworking and furniture configuration, too)

-- 
Dave Lewis      Loral Instrumentation      San Diego    (619) 282-3341
  ihnp4 --\   bang --\ kontron -\
  hp-sdd --\ calmasd ->-> crash ->--> loral!dml
  sdcrdcf -->--------> sdcsvax -/      (uucp)