[Coco] RGBDOS in Mess

[Robert Gault]

John Orwen wrote:
> How do you remove the first two bytes in the disk.rom included in the RGB
> package dowloadable from Aaron Wolfe's website ? It is 8194 bytes and Mess
> refuses to load it because it is not 8192 bytes in size. Is there a free binary
> file editor that can be used to strip off the first two bytes ?
>
> John
>

John,
The ROM image in that package is set to be used with the JVC emulator that 
requires a leading two bytes indicating where the ROM is loaded in memory. Those 
two bytes are not used by MESS and should not be there. Otherwise there is no 
difference in function.
Since you can't conveniently remove those bytes, I'll send you by direct email 
an appropriate ROM image.

MESS is constantly being changed and the recent versions, ex. 1.44, now permit 
mounting two .vhd drives at the same time. The ROM on Aaron's site is not 
designed for two .vhd drives, so I'll be sending you a more recent ROM that can 
access the second .vhd drive under Disk Basic.
DRIVE#0 gets .vhd #0
DRIVE#1 gets .vhd #1

If you are interested in NitrOS-9, you will need a new driver to access the 
second .vhd drive. While emudsk.dr could be modified to handle two drives, I've 
chosen the easier task of using a second driver emudsk1.dr which sets $FF86=1 to 
indicate the second .vhd drive and resets $FF86=0 when finished to indicate the 
first .vhd drive.
Let me know if you need emudsk1.dr and /H1.

Robert