Decode Status Register into Human-Readable Flags

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

#define IS_BIT_SET(reg, pos) (reg & (1 << pos))

void decode_status(uint8_t status_reg) {
    uint8_t reg = status_reg;

    // Your logic here
    if(IS_BIT_SET(reg, 0)) printf("Power On\n");
    if(IS_BIT_SET(reg, 1)) printf("Error\n");
    if(IS_BIT_SET(reg, 2)) printf("Tx Ready\n");
    if(IS_BIT_SET(reg, 3)) printf("Rx Ready\n");
    if(IS_BIT_SET(reg, 4)) printf("Overheat\n");
    if(IS_BIT_SET(reg, 5)) printf("Undervoltage\n");
    if(IS_BIT_SET(reg, 6)) printf("Timeout\n");
    if(IS_BIT_SET(reg, 7)) printf("Reserved\n");
}

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

Solving Approach