Re: Vavsour COCO3 R0Ms

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Article #152

#152

From: compaq3101
Date: Sun, 05 Jun 2005 14:04

29 lines
2295 bytes

That helps.  Thanks!

Robert Gault wrote:
> compaq3101 wrote:
> > Trying without success to find a COCO3.R0M and DISK.R0M for use with
> > the Vavsour emulator.
> >
> > I have the MESS R0MS but as you know they don't work with Jeff's emu.
> >
> > If you have a set will you please email me?
> >
> > Thanks.
> >
>
> The roms used with MESS will work with the Vavasour emulator if you make
> a few small changes. 1) MESS (except for the Coco3) uses separate roms
> for Basic and Extended Basic. They are combined together for Vavasour.
> 2) Each rom used with Vavasour needs two bytes added to the beginning of
> the rom. These bytes are in Intel order and indicate the load address
> for the rom. So the coco.rom will start with $0080, meaning that it
> loads at $8000. It should extend through $BFFF. The disk.rom will start
> with $00C0; loads at $C000.
>
> Any PC program that can read the roms as raw data (not text) can alter
> the files as needed.
>
> Some roms files can be found at ftp://www.rtsi.com/RSDOS/incoming/
> http://members.tripod.com/~Frodpod/index-2.html
> You can also copy them from a real Coco.

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From: "compaq3101" <compaq3101@yahoo.com>
Newsgroups: bit.listserv.coco
Subject: Re: Vavsour COCO3 R0Ms
Date: 5 Jun 2005 07:04:33 -0700
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