Decode Status Register into Human-Readable Flags

Code

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

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