Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
        uint32_t field = (reg >> 10) & 0x1F;

    // Step 2: Increment if less than 31
    if (field < 31) {
        field++;
    }

    // Step 3: Clear old field bits in reg
    reg &= ~(0x1F << 10);

    // Step 4: Write updated field back
    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