syn68k/test/testqsort.c

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2008-09-26 14:25:10 +00:00
#include "testqsort.h"
#include "callemulator.h"
#include "syn68k_public.h"
#include <stdlib.h>
#include <stdio.h>
#define ARRAY_SIZE 103
#if defined(mc68000)
static int emulator_array[ARRAY_SIZE], real_array[ARRAY_SIZE];
/* qsort helper function. */
static int
compare_ints (const void *n1, const void *n2)
{
return *(const int *)n1 - *(const int *)n2;
}
#endif
#ifdef USE_STUB
static void
stub ()
{
qsort (emulator_array, sizeof emulator_array / sizeof emulator_array[0],
sizeof emulator_array[0], compare_ints);
}
#endif
void
test_qsort ()
{
#ifndef mc68000
fputs ("You can't test qsort on a non-68000.\n", stderr);
#else
int i;
/* Randomize the array. */
for (i = 0; i < sizeof real_array / sizeof real_array[0]; i++)
emulator_array[i] = real_array[i] = rand ();
/* Sort it on the real CPU. */
qsort (real_array, sizeof real_array / sizeof real_array[0],
sizeof real_array[0], compare_ints);
#ifndef USE_STUB
/* Sort it under the emulator. */
call_emulator ((int (*)())qsort, emulator_array,
sizeof emulator_array / sizeof emulator_array[0],
sizeof emulator_array[0], compare_ints);
#else
{
char stack[8192];
EM_A7 = EM_A6 = &stack[6000];
CALL_EMULATOR ((syn68k_addr_t) stub);
}
#endif
/* Compare the results. */
if (memcmp (real_array, emulator_array, sizeof real_array))
fprintf (stderr, "test_qsort failed; emulator gets different "
"results than the real 680x0.\n");
else
fprintf (stderr, "test_qsort succeeded.\n");
#endif /* mc68000 */
}