Decode Status Register into Human-Readable Flags

Code

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

const char* flags[8] =
{"Power On",
    "Error",
    "Tx Ready",
    "Rx Ready",
    "Overheat",
    "Undervoltage",
    "Timeout",
    "Reserved"
};

void decode_status(uint8_t status_reg) {
    int i = 0;
    while(status_reg > 0)
    {
        if ((status_reg & 1) > 0)
        {
            printf("%s\n", flags[i]);
        }
        status_reg >>= 1;
        ++i;
    }
}

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

Solving Approach

 

 

 

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Input

13

Expected Output

Power On Tx Ready Rx Ready