howerj

/* This short program uses Less-Than-Or-Equal-To-Zero
 * to create the various signed comparison operators.
 *
 * The reason for this program is to understand how
 * those operators can be implemented on a SUBLEQ
 * One Instruction Set Computer.
 *
 * It is trivial to construct addition, subtraction
 * and branching with the SUBLEQ machine, but the
 * comparison and bitwise operators are more complex. 

jannson

/** A simple kalman filter example by Adrian Boeing 
 www.adrianboeing.com 
 */ 

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

double frand() {
    return 2*((rand()/(double)RAND_MAX) - 0.5);