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Re: Fill Maze
In article <19630@mindlink.bc.ca> Clayten_Hamacher@mindlink.bc.ca (Clayten Hamacher) writes:
>I used to have docs for Fill Maze which described the method of drawing an
>entire line with one 'command'. Does someone have these docs or a text on
>doing this in general? P.S. What apple manual would this be in?
I don't think there is a specific call that he is talking
about. I think what he meant was he unrolled the line loop. So
instead of drawing the line 1 point at a time, and comparing to an end
condition and branching back up to the pixel plot, he just had xx
number of lda, sta combinations. Which basically reduces the overhead
of having a loop and a counter. The lda, sta combinations address's would be
at hardcoded screen offsets.
>Clayten_Hamacher@Mindlink.bc.ca Land of the rising snow.
Steven Chiang Order - DreamGrafix: The ONLY 16/256/3200
stc7@cunixb.cc.columbia.edu color paint program for the Apple IIGS.
America On_Line: DWS Steve
Genie: S.Chiang4 Apple IIGS Forever!
- References:
- Fill Maze
- From: Clayten_Hamacher@mindlink.bc.ca (Clayten Hamacher)