Bit Operations using Macros

Code

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

// Define bitwise macros
#define SET_BIT(reg, bit)    ((reg) |= (1 << (bit)))
#define CLEAR_BIT(reg, bit)  ((reg) &= ~(1 << (bit)))
#define TOGGLE_BIT(reg, bit) ((reg) ^= (1 << (bit)))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    SET_BIT(reg, 2);     // Set bit 2
    SET_BIT(reg, 7);     // Set bit 7
    CLEAR_BIT(reg, 3);   // Clear bit 3
    TOGGLE_BIT(reg, 5);  // Toggle bit 5

    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Expected Output

164