ref: ce86e64ee0d3b2e5e44319d654f8a05ca8a47b7e
dir: /sys/src/libc/arm/main9.s/
arg=0 sp=13 sb=12 lr=14 TEXT _main(SB), 1, $0 SUB $8, R(sp) MOVW $setR12(SB), R(sb) MOVW R(arg), _tos(SB) MOVW $main(SB), R(arg) MOVW $0, R(lr) B _callmain(SB) BL _div(SB) /* force loading of div */