[Coco] coco OS9 boot ROM

[jdaggett at gate.net]

Bob

There is a file on RSTI that tells how to patch  REL to place it in a eprom on the disk 
controller. That way OS9 will boot from /d0 at power up.

The way I understand how it works is the DOS command finds REL on the disk and 
loads it into ram. Then REL finds OS9p1 and loads it into ram and away we go!

To replace the RSBASIC ROM will take a rewrite of REL. Would have to do some 
simple bios type functions and basic initialization. Then put in Boot device order and 
have to seek and find OS9p1 module. 

I guess one could make it plug and pray!

I know it can be done as the Motorola Pagewriter 2000 boots os9 from a flash rom.

james


On 6 Dec 2003 at 10:48, Bob Devries wrote:

> What I'd like to see is an OS-9 boot ROM that replaces the existing
> BASIC ROM. I *never* use disk basic, and find it a real pain to have
> to boot off a floppy to get into OS-9.
> 
> Something along the lines of the way the MM/1 works: Check the floppy,
> to see if there's a bootable disk, then check the hard disk (SCSI or
> IDE, tho the MM/1 doesn't do IDE), keep looping one of them boots.
> 
> Regards, Bob Devries; Ipswich, Queensland, Australia
> 
> 
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