SUB
#define SUB dsubu
#define SUB dsubu
#define SUB subu
#define SUB dsubu
#define SUB subu
#define SUB F3(2, 0x04)
#define SUB F3(2, 0x04)
#define SUB(x, y) (u8)(((x) - (y)) > (x) ? 0 : (x) - (y))
#undef SUB