Decode Status Register into Human-Readable Flags

Code

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

#define is_bitx_set(x, pos)  (!!(x & (1 << pos)))
#define REGISTER_BITS_NUMB  8
#define BIT_TO_FLAG_STRING_MAX  13

static const uint8_t bit_mapping[REGISTER_BITS_NUMB][BIT_TO_FLAG_STRING_MAX + 1]= {
    "Power On",
    "Error",
    "Tx Ready",
    "Rx Ready",
    "Overheat",
    "Undervoltage",
    "Timeout",
    "Reserved",
};

void decode_status(uint8_t status_reg) {
    // Your logic here
    for (int i = 0; i < 8; i++) {
        if (is_bitx_set(status_reg, i)) {
            printf("%s\n", bit_mapping[i]);
        }

    }
}

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

Solving Approach