S_CH1SIZE2
#define V_CH1SIZE2(x) ((x) << S_CH1SIZE2)
#define G_CH1SIZE2(x) (((x) >> S_CH1SIZE2) & M_CH1SIZE2)
#define V_CH1SIZE2(x) ((x) << S_CH1SIZE2)
#define G_CH1SIZE2(x) (((x) >> S_CH1SIZE2) & M_CH1SIZE2)