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 newval;
    uint32_t mask=((1U<<6)-1)<<10;
    uint32_t Nmask=~mask;
    if (((reg & mask)>>10)<31){
        newval=((reg & mask)>>10) +1;
        reg&=Nmask;
        reg|=newval<<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