Bit Operations using Macros

Code

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

// Define bitwise macros here
#define setbits2n7(reg) (reg | 0x84)
#define clrbit3(reg)    (reg & 0xF7)
#define togglebit5(reg) (reg ^ 0x20)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    reg= setbits2n7(reg);
    reg=clrbit3(reg);
    reg=togglebit5(reg);
    return reg;
}

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

Solving Approach

define inline acros for the operations