ref: c5b4e7b3a095a9b3995d55fdc7650cff688cc4dc dir: /sys/src/ape/lib/ap/68020/main9.s/
GLOBL _tos(SB), $4 TEXT _main(SB), 1, $0 MOVL $a6base(SB), A6 MOVL R0, _tos(SB) PEA _apemain(SB) MOVL $0, TOS JMP _callmain(SB)