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PostPosted: Sat Jan 10, 2015 6:58 pm 
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When the PPU fetches the 34th tile at the end of the scanline, from where does it fetch it? How does that concept fit into Loopy's scrolling doc? That is, from which nametable does the 34th tile come from?


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PostPosted: Sat Jan 10, 2015 7:29 pm 
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The 34th tile is one tile to the right of the 33rd tile. It comes from the same nametable as the 33rd tile unless the 33rd tile is rightmost on its nametable.


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PostPosted: Sat Jan 10, 2015 7:56 pm 
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tepples wrote:
The 34th tile is one tile to the right of the 33rd tile. It comes from the same nametable as the 33rd tile unless the 33rd tile is rightmost on its nametable.


I thought nametables are 32x30 tiles. How is there any tile to the right of the 32nd without crossing into another nametable?


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PostPosted: Sat Jan 10, 2015 8:06 pm 
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33rd counting from the first tile visible on screen, not within the nametable.


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PostPosted: Sat Jan 10, 2015 9:22 pm 
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The 33rd is always in the horizontally opposite nametable from the first.


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PostPosted: Sun Jan 11, 2015 12:23 pm 
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zeroone wrote:
How is there any tile to the right of the 32nd without crossing into another nametable?

Just like that - by crossing into the next nametable.

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