Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    uint8_t mask=0x01;
    for(int i=0; i<8;i++)
    {
       switch(status_reg&mask)
       {
           case 1:
            printf("Power On\n");
            break;

            case (1U<<1):
            printf("Error\n");
            break;

            case (1U<<2):
            printf("Tx Ready\n");
            break;

            case (1U<<3):
            printf("Rx Ready\n");
            break;

            case (1U<<4):
            printf("Overheat\n");
            break;

            case (1U<<5):
            printf("Undervoltage\n");
            break;

            case (1U<<6):
            printf("Timeout\n");
            break;

            case (1U<<7):
            printf("Reserved\n");
            break;
            
            default:
            break;

       }
        
    mask <<= 1U;
    }
}

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