ref: 1d0b9d7088f61fd3e28dada8e8e97abf3eac69f9 dir: /sys/src/ape/lib/ap/amd64/main9.s/
GLOBL _tos(SB), $8 TEXT _main(SB), 1, $0 MOVQ AX, _tos(SB) MOVQ $_apemain(SB), RARG PUSHQ RARG PUSHQ $0 JMPF _callmain(SB)