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Revision 1 PPU1 Time Over Bug
From SnesLab
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