Date   : Wed, 11 May 2005 11:25:43 +0100
From   : "neil f" <faz@...>
Subject: Master into Beeb? [Was Beeb versus Master]

Sprow, while you're on the Beeb/Master subject, can you confirm that
there's no reasonably easy way to connect a Beeb keyboard to a Master.
Although the scanning protocol looks similar, the two keyboards look
fiercely different electrically.

-Neil F.

> -----Original Message-----
> From: Majordomo List Manager [mailto:majordomo@...] On Behalf

> Of Sprow
> Sent: Tuesday, May 10, 2005 11:31 PM
> To: bbc-micro@...
> Subject: Re: [BBC-Micro] Beeb versus Master?
> 
> In article
> <OFE4AB600E.0ACE91CF-ON80256FFD.003B598A-80256FFD.0048AD7C@...>,
>    <Richard_Talbot-Watkins@...> wrote:
> 
> > Richard Gellman wrote:
> 
> > > Christopher Dewhurst CCARE Panel Clerk wrote:
> > >
> > > > And access to OS1.2 or Basic I/II ROM routines and tables.
> > > > For example, the 640x table for sprite plotting in
> Modes 1 and 2
> > > > (only in the BBC B's OS1.2), and the 'warm start'
> > > > routine in the Basic Rom.
> 
> You could just put BASIC II in the Master, and *UNPLUG your BASIC IV.
> 
> > > Sprite plotting? *impressed* Of which, did anyone else
> ever make use
> > > of the SPRITER ROM image on the Master Welcome disk?
> >
> > The 640x table in OS1.20 was just a quick way of looking up 640*x 
> > where x was a screen row number between 0 and 31.
> 
> [snip]
> 
> > There was no actual sprite plotting code in any of the OS versions.
> 
> Yes there is - MOS 3.00 onwards contains sprite plotting code (move 
> and copy
> block) as well as all the other handy extra VDU code like circle 
> plotting and flood fills. Yum.
> 
> Back to the original question though both machines have selling points

> BBC B
>  - has motherboard speech sockets of course (whereas the Master needed

> a
>    custom cartridge)
>  - keyboard doesn't break every few months like the crappy Master ones

> Master
>  - a 1770 disc controller
>  - a numeric keypad
>  - stacks more RAM (so page is at &E00)
>  - space for internal co processor
>  - CMOS/real time clock for configuration settings
> 
> and I'm sure the subjective list could go on....
> Sprow.
> 
> 
> 
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