MOVELEN_MRSEL_SHIFT
#define MOVELEN_MRSEL_MATH0 (0 << MOVELEN_MRSEL_SHIFT)
#define MOVELEN_MRSEL_MATH1 (1 << MOVELEN_MRSEL_SHIFT)
#define MOVELEN_MRSEL_MATH2 (2 << MOVELEN_MRSEL_SHIFT)
#define MOVELEN_MRSEL_MATH3 (3 << MOVELEN_MRSEL_SHIFT)