Comments (3)
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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Problem confirmed caused by graphics test routine blocking on display cog's vertical sync signal for timing.
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Problem actually resolved via #51
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Related Issues (20)
- Integrate stereo/mono pre-amp, RGBS, and coin counter circuits w/ schematics HOT 1
- Fix intermittent start-up video desync HOT 11
- Incorporate header files for constants HOT 1
- Elaborate on Video Part 3/4 Wiki Pages
- Update .io pages w/ Wiki info
- Refactor TX/RX handshake to encapsulate by modules HOT 1
- Implement sprite sizing HOT 16
- Implement horizontal fine pixel tile scrolling HOT 2
- Implement vertical fine pixel tile scrolling HOT 3
- Implement tile map scroll wrapping HOT 1
- Render cycle count improvements HOT 29
- Determine EEPROM Writing Solution HOT 8
- Optimize cog-hub scanline buffer transfer HOT 3
- Random stutter when scrolling HOT 1
- Replace sprite vertical wrapping magic number HOT 1
- Broken JAMMA links in wiki/README HOT 1
- Implement parallax scrolling HOT 6
- Implement full-featured gfx sys demo
- Fix CPU/GPU restart order bug HOT 1
- Implement GPU bank switching
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