ref: 29485e6d2b3f83c46f76d190041e3c70599ed351
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 */