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
    uint8_t data = (reg>>10)& 0x1F;
    if(data<31)
    {
        data++;
        uint16_t mask = ~(((1<<5)-1)<<10);
        reg = reg & mask;
        reg = reg | (data<<10);
    }
    return reg;
}
int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}

Solving Approach

 

 

 

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Input

15360

Expected Output

16384