Decode Status Register into Human-Readable Flags

Code

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

#define SHIFT(n)  (1 << n)

// define an array of decoded messages 
// do a bit check, 
//use a for loop to check by AND and if true, take the index and print the output 
char *status_msgs[] = {
    "Power On", "Error", "Tx Ready", "Rx Ready",
    "Overheat", "Undervoltage", "Timeout", "Reserved"
};

void decode_status(uint8_t status_reg) {
    for (int i = 0; i < 8; i++){ 
        if (status_reg & SHIFT(i)){ 
            printf(status_msgs[i]);
            printf("\n");
        }
    }
}

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

Solving Approach