Function rotr32

core/lcd.c:25–27

#define c444(w)  (((w) << 4 & 0xF000F000) | ((w) << 3 & 0x07800780) | ((w) << 1 & 0x001E001E))

static inline uint32_t rotr32(uint32_t val, uint_fast8_t amount) {
    return (val >> amount) | (val << (-amount & 31));
}

static inline uint32_t lcd_next_word(uint32_t **dat) {
    uint32_t word = from_le32(**dat);