Decode Status Register into Human-Readable Flags

Code

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

void print_flags(int i)
{
    if(i == 0)
    {
        printf("Power On\n");
    }
    else if (i == 1)
    {
        printf("Error\n");
    }
    else if (i == 2)
    {
        printf("Tx Ready\n");
    }
    else if (i == 3)
    {
        printf("Rx Ready\n");
    }
    else if (i == 4)
    {
        printf("Overheat\n");
    }
    else if (i == 5)
    {
        printf("Undervoltage\n");
    }
    else if (i == 6)
    {
        printf("Timeout\n");
    }
    else if (i == 7)
    {
        printf("Reserved\n");
    }
    else
    {
        printf("Input is Invalid\n");
    }
}

void decode_status(uint8_t status_reg) {
    
    // 1) check which flags are set by looping thru all 8 bits
    for (int i = 0; i < 8; i++)
    {
        // if bit is set...
        if (status_reg & (1 << i))
        {
            // print the bit
            print_flags(i);
        }
    }
}

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

Solving Approach