Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    // Your logic here
    for (uint8_t i = 0; i < 8; i++) {
        if (status_reg & (1 << i)) {
            switch (i)
            {
                case 0:
                    printf("Power On\n");
                    break;
                case 1:
                    printf("Error\n");
                    break;
                case 2:
                    printf("Tx Ready\n");
                    break;
                case 3:
                    printf("Rx Ready\n");
                    break;
                case 4:
                    printf("Overheat\n");
                    break;
                case 5:
                    printf("Undervoltage\n");
                    break;
                case 6:
                    printf("Timeout\n");
                    break;                                        
                case 7:
                    printf("Reserved\n");
                    break;
                default:
                    printf("Err: Invalid value\n"); 
            }
        }
    }
}

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