Date   : Thu, 15 Feb 1996 13:26:11 +0000 (GMT)
From   : jkb@...
Subject: Re: Graphics speed hacks

Tom Seddon wrote:
>
>On Thu, 15 Feb 1996, lamcw wrote:

>> The obvious ones are Elite and Revs. Most games are quite straightforward
>> and don't change the graphics registers during a frame.
>
>Don't these just play with the ULA registers though? I'm going to cater 
>for changes here in mid-frame, it's just that it would make things easier 
>if I could assume that 6845 register changes don't take effect until the 
>next vsync. Modes 4/5, 0/1/2 have the same 6845 configuration, just 

I think Revs may change between mode 2 and mode 4/5. The text for the time is
definitely not in the same mode as the track, although it could perhaps be
mode 1. It's been a long while since I looked into Revs in detail.

	James

-- 
James Bonfield (jkb@...              )   Tel: 01223 402499   Fax: 01223
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