Path: chuka.playstation.co.uk!news
From: Developer Support <dev_support@interactive.sony.com>
Newsgroups: scea.yaroze.programming.2d_graphics,scee.yaroze.programming.2d_graphics
Subject: Re: Scrolling without BG ??
Date: Thu, 29 May 1997 10:57:48 +0100
Organization: Sony Computer Entertainment Europe
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Jack Copper wrote:
> How does this square with the (less than enlightening) comments on page
> 90 in the User Guide? There is an RCntCNT2 MACRO in the libps.h header:
> 
> #define RCntCNT 0xf2000002
> 
> but no RCntMdNOINTR | (or?) RCntMdSP
> 
> In any case (also from pg 90) it appears that the counters increment
> every 8 cycles of the System clock (approx every 24 microseconds).
> 
> HOWEVER, all these caveats are, at the least, frustrating.. How about
> some definitive information..
> 
> Thanks.
> Jack Copper

As you haven't got RCntMdNOINTR or RCntMdSP, you can't use them. Root
counters 0 and 2 run at 8 clock cycles and root counter 1 runs on Hsync.
The problem with this is that root counter 0 and 2 wrap around within a
frame. I'd forget about the user guide and just do what works.

Stuart