Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    // Your logic here
    // 1. create new lookup table and store in ROM
    static const char* status_msgs[] = {
        "Power On", // bit 0
        "Error",    // bit 1
        "Tx Ready", // bit 2
        "Rx Ready", // bit 3
        "Overheat", // bit 4
        "Undervoltage", // bit 5
        "Timeout",      // bit 6
        "Reserved"      // bit 7
    };
    // 2. print with look up val in array
    for(int i =0; i <sizeof(status_msgs);i++){
        if ((status_reg >> i)&0x1) printf("%s\n",status_msgs[i]);
    }

}

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

Solving Approach