Decode Status Register into Human-Readable Flags

Code

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

char *status[8]={"Power On","Error","Tx Ready","Rx Ready","Overheat","Undervoltage","Timeout","Reserved"};

void decode_status(uint8_t status_reg) 
{
    // Your logic here
    for(uint8_t i = 0;i <= 7;i++)
    {
        if(status_reg & (1<<i))
        {
            printf("%s\n",status[i]);
        }
    }
}

int main() 
{
    uint8_t reg;
    scanf("%hhu", &reg);
    decode_status(reg);
    return 0;
}

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

// #define STATUS_BITS 8
// #define BIT(n) (1U << (n))

// static const char * const status[STATUS_BITS] = {
//     "Power On",
//     "Error",
//     "Tx Ready",
//     "Rx Ready",
//     "Overheat",
//     "Undervoltage",
//     "Timeout",
//     "Reserved"
// };

// void decode_status(uint8_t status_reg)
// {
//     for (uint8_t i = 0; i < STATUS_BITS; i++)
//     {
//         if (status_reg & BIT(i))
//         {
//             printf("%s\n", status[i]);
//         }
//     }
// }

Solving Approach

 

 

 

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Input

13

Expected Output

Power On Tx Ready Rx Ready