🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: bit.listserv.coco
Article #43461

Re: CoCo II Emulator now

#43461
From: Jeff Vavasour
Date: Sun, 28 Nov 1993 10:44
19 lines
1604 bytes
coco-sysop@GENIE.GEIS.COM writes:
>Jeff, what all will the emulator actually run?  Does it handle POKE, machine
>language (any at all?), or will it, say, run OS-9 Level I?  <grin>

If you can get your ROM onto your PC, the emulator will work like a real CoCo
to the best of my programming ability.  The contents of the FF00 page have
been included for the basic CoCo II hardware, giving correct responses.  It
also includes the disk controller functions (sector I/O only) at FF4x.  
For example, FF0x and FF2x act just like PIAs.

The bottom line is, once inside, you should be able to run most all CoCo 
software.  At the moment, the only things that I haven't accounted for in
some way are the 63.5us horizontal sync interrupt and the cassette.   (The
60Hz vertical sync interrupt *is* included.)

I've tried it out with the CoCo ROMs, Dragon ROMs, ADOS patch, Gold Runner
game, Polaris Program Pak, EDTASM+ Program Pak, and a few other things.  

- Jeff
Technical Details
Message-ID: <2d9ve4$ftc@nntp.ucs.ubc.ca>
Path: arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!agate!library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!jeffv
References: <9311280242.AA13657@relay2.geis.com>

Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 110568,baa66a49fe7a7e82
X-Google-Attributes: gid110568,public
X-Google-ArrivalTime: 1993-11-28 02:44:40 PST
Path: arc1-ca.pugleaf.net!gmd.de!xlink.net!howland.reston.ans.net!agate!library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!jeffv
From: jeffv@physics.ubc.ca (Jeff Vavasour)
Newsgroups: bit.listserv.coco
Subject: Re: CoCo II Emulator now
Date: 28 Nov 1993 10:44:20 GMT
Organization: The University of British Columbia
Lines: 20
Distribution: world
Message-ID: <2d9ve4$ftc@nntp.ucs.ubc.ca>
References: <9311280242.AA13657@relay2.geis.com>
NNTP-Posting-Host: physics.ubc.ca