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PostPosted: Thu May 18, 2017 7:14 pm 
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Joined: Sun Apr 13, 2008 11:12 am
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Location: Seattle
I found nocash's description to be the clearest one.

In short, it lets you address the SNES's memory as 256x1 pixel bitplanes instead of the odd interleaving per tile.


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PostPosted: Thu May 18, 2017 7:58 pm 
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Joined: Tue Apr 05, 2016 5:25 pm
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So what is a typical use case scenario for doing the 256x1 writes? I remember playing with these registers hoping to find a way to optimize for streaming new sprite graphics but it doesn't seem like that's what the address remapping is for.


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PostPosted: Thu May 18, 2017 8:07 pm 
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Well, psycopathicteen used it to render some 2bpp bullet hell tests in software on the S-CPU; it's easier than dealing with tiles.


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