ref: 17f7f6be4e1a316c0f5f26ff70e047aece4de2bc
dir: /sys/src/libc/power64/tas.s/
TEXT _tas(SB), $0 SYNC MOVD RARG, R4 MOVWZ $0xdeaddead,R5 tas1: /* taken out for the 755. dcbf and L2 caching do not seem to get on with eachother. It seems that dcbf is desctructive in the L2 cache (also see l.s) */ // DCBF (R4) SYNC LWAR (R4), RARG CMP RARG, $0 BNE tas0 STWCCC R5, (R4) BNE tas1 tas0: SYNC ISYNC RETURN