Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    uint32_t mask = (((uint32_t)pow(2,5) -1) << 10);
    uint8_t val = ((reg & mask) >> 10);
    if(val < 31){
        val += 1;
        reg &= ~mask;
        reg |= (val << 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