ref: 7144ff2694ab898a8c19188a356ce6f03bb4de2d 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)