ref: bafc196c4b07261923d4f197659a26d0919cdeae
dir: /sys/src/libc/mips/main9p.s/
TEXT _mainp(SB), 1, $0 ADD $-8, R29 MOVW $setR30(SB), R30 MOVW R1, _tos(SB) MOVW $_profmain(SB), R1 MOVW $0, R31 JMP _callmain(SB) TEXT _saveret(SB), 1, $0 TEXT _savearg(SB), 1, $0 RET TEXT _callpc(SB), 1, $0 MOVW argp-4(FP), R1 RET