ref: 68c5bc7ad25fc33585846b5121a08f3e141a082d
dir: /sys/src/ape/lib/ap/power/main9.s/
GLOBL _tos(SB), $4 TEXT _main(SB), 1, $0 SUB $8, R1 MOVW $setSB(SB), R2 MOVW R3, _tos(SB) MOVW $_apemain(SB), R3 MOVW R0, LR MOVW $_callmain(SB), R4 MOVW R4, CTR BR (CTR)