Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    uint8_t mask = 1;
    uint8_t reg = status_reg;

    for(int i = 0; i < 8; i++)
    {
        reg = (status_reg & mask) >> i;
        if(reg == 1 && i == 0){printf("Power On\n");};
        if(reg == 1 && i == 1){printf("Error\n");};
        if(reg == 1 && i == 2){printf("Tx Ready\n");};
        if(reg == 1 && i == 3){printf("Rx Ready\n");};
        if(reg == 1 && i == 4){    printf("Overheat\n");};
        if(reg == 1 && i == 5){    printf("Undervoltage\n");};
        if(reg == 1 && i == 6){    printf("Timeout\n");};
        if(reg == 1 && i == 7){    printf("Reserved\n");};
        mask = mask << 1;
    }
}

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