Bit Spreading Interleave Bits with Zeros

#include <stdio.h>
#include <stdint.h>

uint16_t spread_bits(uint8_t val) {
    //z order curve or morton code: used to compress 2d and 3d information into a 1d object
    uint16_t valu = val;
    valu |= (valu<<4);
    valu &= (0x0F0F);
    valu |= (valu<<2);
    valu &= (0x3333);
    valu |= (valu<<1);
    valu &= (0x5555);
    
    return valu;
    
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}