Date   : Wed, 27 Feb 2008 08:03:46 +0000
From   : pete@... (Pete Turnbull)
Subject: BBC FPGA Boots to BASIC... almost...

On 27/02/2008 01:46, Jonathan Graham Harston wrote:
> Pete Turnbull wrote:

>> BASIC uses the bottom part of page 1 to store error messages, on
>> the assumption that the stack will normally never get down that
>  
> No, BASIC, as any language, stores errors inline within the code.
> Service ROMs, such as filing systems and extensions, copy errors
> to &100 so the current language can access them.

Probably I'm misremembering that, then.  I was sure it used the bottom 
few bytes for something like that, but it's been a long time...

-- 
Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York