===== 03 IOS IO STORES | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000590

stores to other devices, each writing back what is there:
RAM sw: 443
timer 0 target, 1 sw: 423
timer 0 target, 4 sw: 849
DMA2 MADR, 1 sw: 422
DMA2 MADR, 4 sw: 820
SPU voice 0 volume, 1 sh: 815
SPU voice 0 volume, 4 sh: 3202
SPU voice 0, 1 sw: 1458
SPU voice 0, 4 sw: 5958
SPU voice 0 volume, 1 sb: 814
CDROM index, 8 sb: 4830
CDROM index, 4 sh: 4378
Done.