Decode Status Register into Human-Readable Flags

Code

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

const char *str[] = {"Power On", "Error", "Tx Ready", "Rx Ready", "Overheat", "Undervoltage", "Timeout", "Reserved" };

void decode_status(uint8_t status_reg) {
    // Your logic here
    uint8_t pos = 0;
    while(pos < 8){
        if( status_reg & (1 << pos))
            printf("%s\n", str[pos]);
        pos++;
    }
}

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

Solving Approach

Create an array of strings. If the bit position is set, print the corresponding string from array.