===== 02 IST I STAT ACK | BIOS 19951204 System ROM Version 3.0 11/18/96 A
BadVaddr as the group starts: 00000480
Raised by GP0 1Fh, DICR force, timers 0-2: I_STAT 007A (lw 3C03007A)
lhu +2 9067, lbu +0..+3 7A 00 A2 AF
sw FFFFFFFF: 007A
sw ~10h (ack timer 0): 006A
sw 0: 0000
sw FFFFFFFF after 0 (can a write set a bit?): 0000
With I_MASK 07FF: I_STAT 007A, I_MASK 07FF
Partial stores after raise_all: op=result (bits 0 and 2 may come and go)
src 00000000: sb+0=07A/000 sb+1=07A/000 sb+2=07A/000 sb+3=07A/000 sh+0=07A/000 sh+2=07A/000 sw=07A/000
src FFFFFFFF: sb+0=07A/07A sb+1=07A/000 sb+2=07A/000 sb+3=07A/000 sh+0=07A/07A sh+2=07A/000 sw=07A/07A
src FFFFFFEF: sb+0=07A/06A sb+1=07A/000 sb+2=07A/000 sb+3=07A/000 sh+0=07A/06A sh+2=07A/000 sw=07A/06A
src 000000FF: sb+0=07A/07A sb+1=07A/000 sb+2=07A/000 sb+3=07A/000 sh+0=07A/07A sh+2=07A/000 sw=07A/07A
sb+1 src 000000FB: before 07A after 000
Done.