Re: A85: Dumb question

To: assembly-85@lists.ticalc.org
Subject: Re: A85: Dumb question
From: "Evil Sam" <evil_sam@hotmail.com>
Date: Wed, 10 Mar 1999 06:02:57 PST
Delivered-To: assembly-85-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-85@lists.ticalc.org
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>About the clipping routine, you should check out my own SDR routines 
(and
>variations thereof) at <a href="http://www.dimension-
>ti.org/macross/pages/projects.html">Macross Software: Routines</a>.  I,
>myself, have actually calculated the regular SDR routine to be 3X 
faster than
>Jimmy's PutSprite routine, at almost exactly the same size, because, 
rather
>than put each individual pixel (like in PutSprite), SDR will rotate 
each byte
>in the sprite to line up with the offset, then copy many bits in at 
once.
>I've also made a clipping variation (as well as a grayscale, clipping,
>masking, and bg saving variation :) that uses extremely efficient self-
>modifying code.
>
>JL

 A quick question: It says in the SDR doc that you can make the routine 
XOR by changing the OR (hl)'s to XOR (hl)'s. The only problem is there 
are no "or (hl)'s"? What do you mean?
   Also do you know if your routines are faster than the clipping 
routines by Hideaki Omuro?
   Sam
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