26. Extract and Modify Field in a 32-bit Register

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Code

#include <stdio.h>
#include <stdint.h>
 
#define GET_BITS(reg) reg >> 10 & 0x1F
#define UPDATE_REG(reg,value) (reg & ~0x7C00) | value << 10

uint32_t update_register(uint32_t reg) {
    // Your logic here
    uint8_t value = GET_BITS(reg);
    
    if(value<31){
        value++;
        return UPDATE_REG(reg,value);
    }
    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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