#include <stdio.h> 
#include <stdlib.h> 

struct microFields { 
    unsigned int addr:28; 
    unsigned int cond:2; 
    unsigned int wr:1; 
    unsigned int rd:1; 
    unsigned int mar:1; 
    unsigned int alu:3; 
    unsigned int b:20; 
    unsigned int a:20; 
    unsigned int c:20; 
}; 

union micro { 
    unsigned int microCode; 
    struct microFields code; 
}; 

int main (void) { 
    int typeAlu=0x11FE00; 
    union micro test; 
    test.microCode = 0x0001c000; 
    typeAlu = test.code.alu; 
    printf("%d \n", typeAlu); 
    return EXIT_SUCCESS; 
}