/******
 * bit_ops.c
 *
 * sample bit operations in C
 *
 * $ make bit_ops
 * gcc -march=athlon64 -O2    bit_count.c   -o bit_count
 * $ ./bit_ops
 * 
 *
 *******/

#include <stdio.h>

int bitcount(char x){
  int count;
  for (count=0; x != 0; x>>=1){
    if (x & 01){
      count++;
    }
  }
  return count;
}

int bittest(char* x){
}

int main(){

  char a = 'a';
  char_bits b;
  int i;

  printf("'%c' is ascii '%i' ('%o' octal) which has '%i' 1's in binary. \n", 
	 a, (int)a, (int)a, bitcount(a));


  b = 7;
  for (i=0; i<8; i++){
    
  }

}