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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 value = ((0x1F<<10)&reg)>>10; //extract the value
    if(value<31){ //finding out if its less than 31
        value++;
    }
    reg &= ~(0x1F<<10);
    reg |= value<<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