Date   : Tue, 31 Jan 2006 23:22:22 +0000
From   : Jules Richardson <julesrichardsonuk@...>
Subject: Re: BBC Master 512 system discs

David Harper wrote:
> Jules Richardson <julesrichardsonuk@...> wrote:
> 
>>> The 512's boot disk is a hybrid ADFS / DOS format disk. The 512's 
>>> boot ROM uses ADFS to get started
>>
>> That's interesting - do you need ADFS present to even get the startup 
>> TUBE message?
> 
> No, you don't.

Ahh, OK, that's what I figured - just thought I'd check! I do have a Master 
512, but it's somewhat buried (actually, I paid Real Money for that machine 
back in 1993 or so)

I was just thinking of the ABC 310 machine I have with the 80286 copro in it, 
as it's something of a long term project to get it going (I've got the board 
schematics about half drawn out, but haven't had time to do any more in a 
while). From memory it just has a DFS ROM in it though, so I would have been 
kicking myself if the lack of any TUBE message might have just been down to 
having no ADFS ROM :-)

(Said 80286 board has Master 512 ROMs on board - lots of the machines were 
used by Acorn to develop the Master 512 firmware. I don't think such a thing 
as a "proper" 80286 ROM ever really existed for the boards, although I'd be 
happy to be proved wrong :)

cheers

Jules