[Coco] NitrOS-9 ROM Pak ?

Roger Taylor operator at coco3.com
Sun Mar 29 13:45:52 EDT 2009


To Boisy,

Desoldering the ROMs from a CoCo motherboard is not for everybody.  I 
think your NitrOS-9 ROM idea would boom if you found a way to do it 
from a ROM Pak.

A 16K EPROM can autoboot in any controller or pak if the CoCo has 
Extended BASIC.  Just prefix the ROM with the letters "DK" and 
execution will start from $C002 as if it's a DOS.  I see no reason 
why you can't at least pull off a 16K version.  I haven't burned and 
booted any 32K ROM paks yet but I've done plenty of 16K paks.  If a 
32K ROM Pak maps in at $8000, then it should work almost as-is.  If a 
32K ROM Pak maps in at $C000 in 16K segments using GIME toggles, then 
it might be a little tricky but definately not impossible to do a 32K version.

You might even be able to do this right now if you just assemble your 
16K NitrOS-9 ROM as relative code, then insert "DK" at the top of 
it.  If it's doable, I need to buy a copy.
-- 
Roger Taylor

http://www.wordofthedayonline.com




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