Extract and Modify Field in a 32-bit Register

Code

#include <stdio.h>
#include <stdint.h>
#define FIELD_MASK (31<<10)
uint32_t update_register(uint32_t reg) {
    // Your logic here
    uint32_t field_value = (reg & FIELD_MASK)>>10;
    if (field_value<31) field_value++;
    reg &= ~FIELD_MASK;
    reg|= (reg&FIELD_MASK)|(field_value<<10);
    return reg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}

Solving Approach