ref: 6bda784cb6a0a933a3c3bde7e6b6d60d221d88f2
dir: /sys/src/ape/lib/ap/power/tas.s/
TEXT tas(SB), $0 SYNC MOVW R3, R4 MOVW $0xdeaddead,R5 tas1: DCBF (R4) /* fix for 603x bug */ LWAR (R4), R3 CMP R3, $0 BNE tas0 DCBT (R4) /* fix 405 errata cpu_210 */ STWCCC R5, (R4) BNE tas1 tas0: SYNC ISYNC RETURN