[Coco] Another ROMable NitrOS9 question

[Bruce W. Calkins]

----- Original Message ----- 
From: <billg999 at cs.uofs.edu>


>> This is a good point, dropping rb_1773 will gain you some precious
>> ram.  Also if you don't need full screen capabilities, you can use the
>> headless disks, which will drop the coco video modules altogether.
>> This makes for a pretty massive gain in free space, at the cost of
>> running anything that needs the CoCo console to be a VDG instead of
>> just dumb terminal.  Should work great for running c compiler.
>>
> But, it still leaves me wondering if it would be doable to replace
> the BASIC ROM with a NitrOS-9 ROM and have a purely NitrOS-9 machine.
> What would it take to disable the ROM in the COCO without completely
> unsoldering it?  If I merely removed Vcc could I then overlay that
> address space with a PROM in a cartridge?  So much fun, so little time...
> 
> bill
==============
At one time Cloud-9 had kits for putting OS-9 in a ROM.
<http://www.cloud9tech.com/>
Bruce W.