Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    uint16_t reg=0x0000;uint8_t j=0;
    for(int i=0;i<8;i++,j++)
    {
        uint8_t shift=val&(1<<i);
        //shift>>=i;
        reg|= shift<<j;
        //j+=1;
    }
    return reg;
}

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

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

Solving Approach