[Coco] Emulation Bummer Action (or lack thereof)

[Robert Gault]

Roger Merchberger wrote:
> Well, I installed FreeDOS in a virtual machine, figured out how to get a
> copy of the CoCo3 ROM in a format that JV's emulator likes, got
> everything "working," and...
>
> no dice. :-(
>

I have been able to run the original JV Coco emulator in DOSBox but the Coco3 
emulator (John Collyer version) does not work. The best I've been able to get is 
a 128K startup screen even though the 2Meg file is present. The emulator screen 
is trashed but will clear with any of the F# keys such as F6.
I can leave "emulation" with F6 and then Q for quit.

Of more interest is that I can run the JV Coco2 emulator from WinXP without 
DOSBox. I only need to install the autoexec.nt and config.nt files (system32) 
with the following lines.
autoexec.nt
  lh %SystemRoot%\system32\dosx

config.nt
  dos=high,umb
  device=%SystemRoot%\system32\himem.sys
  files=100

The JV Coco3 behaves about the same way it does in DOSBox under these conditions.
VGACheck.exe runs perfectly in WinXP without any help if autoexec.nt and 
config.nt are used. Memory settings are Auto and compatibility is set for Win95.