Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!apple!agate!ucbvax!YODA.EECS.WSU.EDU!dwatola
From: dwatola@YODA.EECS.WSU.EDU
Newsgroups: comp.os.cpm
Subject: UNIX Z80/CPM EMULATOR (progress report)
Message-ID: <9012010454.AA22006@yoda.eecs.wsu.edu>
Date: 1 Dec 90 04:53:39 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Lines: 26
X-Unparsable-Date: Fri, 30 Nov 90 20:55:13 WST



hi again,

just in case anyone is getting anxious, or if anyone is still interested,
here is what's going on with my emulator.

it is all but finished.  only a few (rare) instructions need to be
implemented and the sucker needs to be debugged (my flag emulation is
apparently off).  i only made a few compromises, the main one being that
i ditched all BCD support.  as far as i am concerned, it is a waste of time
since i never use it.  ditching the half-carry flag emulation sped up the
program considerably (and yes, it is quite fast on this 25 MHz NeXT N1000).
I also made some slight compromises in portability that should be easy to 
work around (especially if you are running 'real' BSD4.3).

i am amazed that i had the time to do what i have done so far, so who knows
when i will actually finish.  in the next few weeks i have to design and
lay out an entire vlsi chip plus prepare for finals.  xmas break is looking
good though--i'll get back to yall around the second week of january.

dave watola
dwatola@nextasy2.eecs.wsu.edu
dwatola@yoda.eecs.wsu.edu

"you're just a heroin face!" - R. Smith