Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    const char *flags[8] = {
        "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
    };

    for (int bit = 0; bit < 8; bit++) {
        if (status_reg & (1U << bit)) {
            printf("%s\n", flags[bit]);
        }
    }
}

int main() {
    uint8_t status;
    scanf("%hhu", &status);  // read 8-bit value
    decode_status(status);
    return 0;
}

Solving Approach