Decode Status Register into Human-Readable Flags

Code

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

#define POWER_ON_BMSK (1 << 0);
#define TXREADY_ON_BMSK (1 << 2);
#define RXREADY_ON_BMSK (1 << 3);

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

void decode_status(uint8_t status_reg) {
    for(int i = 0; i < 8; i++)
    {
        if(status_reg & (1 << i))
        {
            printf("%s\n", status_prints[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