ref: c76cc12a1799ce214b07882eb6f4ab0906c0151b
dir: /sys/src/ape/lib/ap/power64/tas.s/
TEXT tas(SB), $0 SYNC MOVD R3, 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), R3 CMP R3, $0 BNE tas0 STWCCC R5, (R4) BNE tas1 tas0: SYNC ISYNC RETURN