[Coco] NitrOS9 Boot Help

Al Hartman alhartman6 at optonline.net
Sat Apr 11 14:38:00 EDT 2015


Autostart is probably enabled in the cart. Someone had a problem with this 
last year, or the one before and cutting the autostart trace in the cart 
fixed it.

-[ Al ]-

-----Original Message----- 
From: Bill Pierce via Coco

I can't understand how HDBDOS being on a rom cart in a Coco 3 would 
matter.... something is not right in that cart!!!
I have HDBDOS 1.4 DW in rom and have no such problems.
On a Coco 3, ROM is copied to RAM when BASIC initiates as that's how Super 
Extended Color BASIC patches into ECB/DECB. The same goes for HDBDOS when 
it's present. You should be able to change the offsets regardless of type of 
HDBDOS (rom, bin, or cas). Of course this is not true on a Coco 1 or 2. But 
a Coco 3 is ALWAYS in RAM mode unless switched by software.

On my Coco 3, I run a menu system on bootup that allows me to set the 
offsets for various sizes of VHD partitions (or none) as well as boot 
several different incarnations of NitrOS9.

Oh, and sorry about the typos in the POKEs. My AOL email client is always 
loading ads and when it does, it misses keystrokes while ads are loading :-(


Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens



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