ref: c76cc12a1799ce214b07882eb6f4ab0906c0151b dir: /sys/src/libc/386/main9.s/
TEXT _main(SB), 1, $0 MOVL AX, _tos(SB) MOVL $main(SB), AX PUSHL AX PUSHL $0 JMPF _callmain(SB)