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Revision 1 PPU1 Time Over Bug: Difference between revisions
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=== Trigger === | === Trigger === | ||
All three of the following conditions must be present for the problem to trigger: | |||
* The size of OBJ 0 is 16x16, 32x32, or 64x64 | * The size of OBJ 0 is 16x16, 32x32, or 64x64 | ||
* OBJ 0's horizontal position is 0 through 255 | * OBJ 0's horizontal position is 0 through 255 | ||
* There are other objects with negative horizontal positions (offscreen) | * There are other objects with negative horizontal positions (offscreen) | ||
=== | === Symptom === | ||
* The [[Time Over Flag]] becomes set | * The [[Time Over Flag]] becomes set | ||
=== See Also === | |||
* [[Revision 1 CPU DMA crash]] | |||
=== References === | === References === | ||
Latest revision as of 05:36, 16 July 2023
The Revision 1 PPU1 Time Over Bug is a hardware problem documented by Nintendo.
Trigger
All three of the following conditions must be present for the problem to trigger:
- The size of OBJ 0 is 16x16, 32x32, or 64x64
- OBJ 0's horizontal position is 0 through 255
- There are other objects with negative horizontal positions (offscreen)
Symptom
- The Time Over Flag becomes set
See Also
References
- page 2-25-2 of Book I of the official Super Nintendo development manual