#include <stdio.h>
#include <math.h>

int n=5;

/*--- seisuu x tyuu no set sareta bit suu wo kaesu ---*/
int count_bits(unsigned x)
{
 int count=0;
 while (x) {
  if (x & 1U) count++;
  x >>=1;
 }
 return (count);
}

/*--- unsigned kata no bit suu wo kaesu ---*/
int int_bits(void)
{
 return (count_bits(~0U));
}

/*--- unsign kata no bit naiyou wo hyouji ---*/
void print_bits(unsigned x)
{
 int i;
 for (i=int_bits() - 1;i>=0; i--)
  putchar(((x>>i)&1U) ? '1' : '0');
}

int bitcount(unsigned x)
{
 int b;

 for (b=0;b<n;b++) {
  if (x & 01)
   printf(" a%d",b);
  else
   printf(" ^a%d",b);
  if (b<n-1)
   printf(" & ");
  else
   printf(";");
  x >>=1;
 }
 printf("\n");
 return (0);
}

main()
{
 int i=0,i2=0,i3=0,i4=0,dpow,i5=7;

 unsigned nx;

 printf("module rom {\n",n);
 printf("input address<%d>;\n",n);
 printf("output data<8>;\n");

 printf("sel_v a0");
 for (i2=1;i2<n;i2++) {
  if (i2%10==0)
   printf(";\nsel_v a%d",i2);
  else
   printf(", a%d",i2);
 }
 printf(";\n");

 dpow=pow(2,n);

 printf("sel_v y0");
 for (i3=1;i3<dpow;i3++) {
  if (i3%10==0)
   printf(";\nsel_v y%d",i3);
  else
   printf(", y%d",i3);
 }
 printf(";\n");

 printf("sel_v d0,d1,d2,d3,d4,d5,d6,d7;\n");
 printf("instrin enable;\n");
 printf("\n");
 printf("instruct enable par {\n");

 for (i4=0;i4<n;i4++) {
  printf("a%d = address<%d>;\n",i4,i4);
 }


 printf("\n");

/* printf("Input integer(int>=0):");
 scanf("%u",&nx);*/

 for (nx=0;nx<pow(2,n);nx++){

 /*print_bits(nx);
 putchar('\n');*/
 printf("y%d=",nx);
 bitcount(nx);
 }

 printf("\n");

 for (i5=7;i5>=0;i5--) {
 i=0;
  printf("d%d= ^(^(^y%d | 0b1)",i5,i);
 for (i=1;i<dpow;i++) {
  if (i%4==0)
    printf(" | ^(^y%d | 0b1)\n",i);
  else
    printf(" | ^(^y%d | 0b1)",i);
 }
 printf(");\n\n");
 }
 printf("data = d7 || d6 || d5 || d4 || d3 || d2 || d1 || d0;\n }\n}\n");
}