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Moving sprite tearing when max sprites per line reached #45

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cspang1 opened this issue Mar 4, 2018 · 3 comments
Closed

Moving sprite tearing when max sprites per line reached #45

cspang1 opened this issue Mar 4, 2018 · 3 comments
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VGA Tile/Sprite D...

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cspang1 commented Mar 4, 2018

When max sprites per line reached, and a sprite is being "erased" due to a higher priority sprite, there is a horizontal tearing being seen.
@cspang1 cspang1 added the bug label Mar 4, 2018
@cspang1 cspang1 added this to the VGA Tile/Sprite Driver milestone Mar 4, 2018
@cspang1 cspang1 self-assigned this Mar 4, 2018
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cspang1 commented May 1, 2018

Only happens around scanline 4-5, indicating something happening during or immediately after the vertical sync area.

Possibly caused by the graphics test routine waiting for vertical sync before modifying the SAT.

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cspang1 commented May 2, 2018 •
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Problem confirmed caused by graphics test routine blocking on display cog's vertical sync signal for timing.

@cspang1 cspang1 closed this as completed May 2, 2018
@cspang1 cspang1 mentioned this issue May 27, 2018
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cspang1 commented Jun 6, 2018

Problem actually resolved via #51

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