Development Troubleshooting

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VR4300 - Main CPU

RDP - Reality Display Processor

RSP - Reality Signal Processor

A Blank Screen

A blank or freezing screen usually means the display list sent to the RSP has an error it and didn't complete. This can be caused by a number of things. Some import details to look out for.

  • The z buffer and color buffer must be aligned to a 64 byte boundary
  • Any use of gSPDisplayList must point to a valid display list
  • Pointers passed to the RSP specify their segment, eg use OS_K0_TO_PHYSICAL when passing pointers
  • Any display list called with gSPDisplayList must end with gsSPEndDisplayList

SI - Serial Interface for EEPROM and Controllers