Date   : Sat, 13 Sep 2008 21:34:03 +0100
From   : afra@... (Phill Harvey-Smith)
Subject: Sideways RAM rom ?

Hi,

My first post to the list so please be gentle with me :)

I've just updated my design for a fully populated rom board (using a 
27C010/020 or flash equivelent) for the BBC B, to include a block of 
RAM, to be used as sideways ram, however the standard BBC B does not 
come with sideways ram commands built into the machine. Can someone 
sugest a suitable set of routines for use in such a setup.

Basically my board at the moment will have the roms in banks 8-15, and 
the ram in banks 0-7. My 3 BBC Bs also have Watford 1770 DDFS (one 
original and 2 clones :)  ), in them which I'd like to continue to use 
if at all possible.

Cheers.

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.