ref: 9ebd6f860e9d551e8b1c8f0a0c62bb4c1aa2c268 dir: /sys/src/libc/mips/main9.s/
TEXT _main(SB), 1, $0 ADD $-8, R29 MOVW $setR30(SB), R30 MOVW R1, _tos(SB) MOVW $main(SB), R1 MOVW $0, R31 JMP _callmain(SB)