u16_t
u16 = (u16_t)u8 << 8 | u8;
u16_t u16;
u16 = (u16_t)u32;
u16_t u16;
u16 &= (u16_t)~0x0600;
u16 = u16 & (u16_t)~0x0600;
u16 = (u16_t)(u16 & (u16_t)~0x0600);
u64 = 0x12345678 & (u16_t)0x8000;
u8 = (u16_t)u8;
u8 = (u16_t)u16;
u16 = (u16_t)u8;
u16 = (u16_t)u16;
u16_t u16;