27. Extract Bit Field from 16-bit Register

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

uint8_t extract_field(uint16_t reg) {
    // Extract 5-bit field from bits 4 to 8
    return (reg >> 4) & 0x1F;
}

int main() {
    uint16_t reg;
    scanf("%hx", &reg);  // input as hex
    printf("%u", extract_field(reg));
    return 0;
}