/* Minimal Standard Random Number Generator Test program */

// Copyright (C)2013-2018, Philip Munts, President, Munts AM Corp.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice,
//   this list of conditions and the following disclaimer.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

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

#include <cpu.h>

#define ITERATIONS	10000
#define Z1		1
#define Zn		1043618065

int main(void)
{
  int i;
  unsigned int myseed;

  cpu_init(DEFAULT_CPU_FREQ);
  serial_stdio(CONSOLE_PORT);

  printf("\033[H\033[2J%s Minimal Standard Random Number Generator Test (" __DATE__ " " __TIME__ ")\n\n", MCUFAMILYNAME);
  printf("CPU Freq:%u Hz  Compiler:%s %s %s\n\n", (unsigned int) SystemCoreClock,
    __COMPILER__, __VERSION__, __ABI__);

  myseed = Z1;

  printf("z1 is %d\n", myseed);

  for (i = 0; i < ITERATIONS; i++)
    rand_r(&myseed);

  printf("z%d is %d\n\n", ITERATIONS + 1, myseed);

  if (myseed == Zn)
  {
    puts("SUCCESS!");
  }
  else
  {
    printf("FAILURE! Expected z%d is %d\n", ITERATIONS + 1, Zn);
  }

  exit(0);
}