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Re: Fast tile renderer

On Monday, June 10, 2013 12:48:12 PM UTC-5, Antoine Vignau wrote:
> Interesting code, thanks for sharing.
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> I would make a second lookupHi table with values minus #$1C to remove the SEC SBC #$1C code.
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> I wonder whether your sprites should be aligned, I cannot say right now if you lose a cycle if they are not aligned or if you cross a page.
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> Antoine

It would incur a 1-cycle penalty (so up to 16 cycles slower) if a tile overlaps a page boundary.  Since the tiles are 32 bytes in size, I can fit 8 in a page neatly, so no harm there...

Good catch!

-B