===== 10 DPR DMA PRIORITY | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
Two channels armed with their DPCR enables off, then one DPCR write: which wrote each of 64 shared words last (O OTC, S SPU, G GPU, . untouched, ? other).
SPU read SyncMode 1, priority 1, OTC priority 5: 3920 clocks, 247 polls
  OOOOOOOOOOOOOOOOSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SPU read SyncMode 1, priority 5, OTC priority 1: 3927 clocks, 248 polls
  SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SPU read SyncMode 1, priority 3, OTC priority 3: 3925 clocks, 248 polls
  SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SPU read SyncMode 0, priority 1, OTC priority 5: 720 clocks, 1 polls
  OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
SPU read SyncMode 0, priority 5, OTC priority 1: 721 clocks, 1 polls
  SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
SPU read SyncMode 0, priority 3, OTC priority 3: 715 clocks, 1 polls
  SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
GPU read SyncMode 1, priority 1, OTC priority 5: 268 clocks, 1 polls
  OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
GPU read SyncMode 1, priority 5, OTC priority 1: 268 clocks, 2 polls
  GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
GPU read SyncMode 1, priority 3, OTC priority 3: 277 clocks, 2 polls
  GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
GPU read SyncMode 0, priority 1, OTC priority 5: 257 clocks, 1 polls
  OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
GPU read SyncMode 0, priority 5, OTC priority 1: 265 clocks, 1 polls
  GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGG
DPCR bits 28-30, CPU priority (channels.txt:105, dmachannels.txt:168):
DPCR 0B3B3B33, SPU write 16 words x 64: 73074, polls 4969; loop of 10000 alone 40030, with the SPU write 40019
DPCR 3B3B3B33, SPU write 16 words x 64: 72637, polls 4935; loop of 10000 alone 40025, with the SPU write 40019
DPCR 7B3B3B33, SPU write 16 words x 64: 73076, polls 4969; loop of 10000 alone 40025, with the SPU write 40019
Done.