Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    uint32_t mask = 0x1F << 10;                // 0x1F = 0b11111, shifted to bits 10–14
    uint32_t field = (reg & mask) >> 10; 
    if (field<31) field+=1;
    reg&=~mask;
    reg |= (field & 0x1F) << 10;

    return reg;
}

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

Solving Approach