Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    for (int pos = 0; pos < 8; pos++){
        if(status_reg & (1 << pos)){
            switch(pos){
                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:
                break;
            }  
        }

    }
}

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