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Decode Status Register into Human-Readable Flags

Code

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

void decode_status(uint8_t status_reg) {
    const char* flags[8] = {
        "Power On",     // Bit 0
        "Error",        // Bit 1
        "Tx Ready",     // Bit 2
        "Rx Ready",     // Bit 3
        "Overheat",     // Bit 4
        "Undervoltage", // Bit 5
        "Timeout",      // Bit 6
        "Reserved"      // Bit 7
    };

    for (int i = 0; i < 8; i++) {
        if (status_reg & (1 << i)) {
            printf("%s\n", flags[i]);
        }
    }
}

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