Date   : Thu, 25 Jun 1998 11:51:32 +0100 (BST)
From   : Rich <rst20@...>
Subject: Re: BBC Master

On Thu, 25 Jun 1998, Francis Muir wrote:

> Unfortunately, most of them don't work on a Master (I used to use a BBC 
> B 32k).  My two favourite games Repton and Zalaga don't work, nor do 
> numerous other educational programs.

Zalaga won't run on a Master without a *lot* of tweaking, as it relied on
undocumented 6502 opcodes for its sprite plotting and so on, which don't
have the same effect on the 65C12 used by the Master.  I eventually got it
working on a Master after rewriting most of the sprite plotting
routines....  I think there was a Master compatible version on Play it
Again Sam something-or-other.

Repton should work fine though...  Is it an original or, dare I ask, a
copy?! :)

Acorn provided a little utility called Convert on the disc which was
supplied with the Master, which sorts out a lot of compatibility problems.
You just run it before running anything else.  If you've not got a copy of
this, then I really recommend trying to get hold of one, as I suspect
it'll fix most of the educational software probs.
 
Hope that helps.

Cheers,
Rich
-- 
+-------------------------------------------+-------------------------+
| Richard Talbot-Watkins,                   | Tel: 01223 500997       |
| St Catharine's College, Cambridge CB2 1RL | E-Mail: rst20@...       |
+-------------------------------------------+-------------------------+