71. Decode ADC Result Using Union Bitfields

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

typedef union {
    struct {
        uint16_t adc_value : 12;
        uint16_t channel   : 4;
    };
    uint16_t adc_reg;
} ADC_Result;

int main() {
    uint16_t reg;
    scanf("%hx", &reg);

    ADC_Result ad;
    ad.adc_reg = reg;
    uint16_t result = ((reg) & 0xFFF);
    uint16_t channel = ((reg>>12) & 0xF);

    printf("Channel: %u\n",channel);
    printf("ADC Value: %u",result);
    // Fill union and print channel and adc_value
    return 0;
}