Decode Status Register into Human-Readable Flags

Code

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

#define check_bit(reg,pos) (((1u<<pos)&reg)?1:0)
void decode_status(uint8_t status_reg) {
    // Your logic here
    if(check_bit(status_reg,0)){
        printf("Power On\n");
    }
    if(check_bit(status_reg,1)){
        printf("Error\n");
    }
    if(check_bit(status_reg,2)){
        printf("Tx Ready\n");
    }
    if(check_bit(status_reg,3)){
        printf("Rx Ready\n");
    }
    if(check_bit(status_reg,4)){
        printf("Overheat\n");
    }
    if(check_bit(status_reg,5)){
        printf("Undervoltage\n");
    }if(check_bit(status_reg,6)){
        printf("Timeout\n");
    }
    if(check_bit(status_reg,7)){
        printf("Reserved\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