100 lines
1.9 KiB
C
100 lines
1.9 KiB
C
#define WITH_TARGET_WORD_MSB 0
|
|
#define WITH_TARGET_WORD_BITSIZE 64
|
|
#define WITH_HOST_WORD_BITSIZE (sizeof (int) * 8)
|
|
|
|
#define ASSERT(EXPRESSION) \
|
|
{ \
|
|
if (!(EXPRESSION)) { \
|
|
fprintf (stderr, "%s:%d: assertion failed - %s\n", \
|
|
__FILE__, __LINE__, #EXPRESSION); \
|
|
abort (); \
|
|
} \
|
|
}
|
|
|
|
#define SIM_BITS_INLINE (INCLUDE_MODULE | INCLUDED_BY_MODULE)
|
|
|
|
#include "sim-basics.h"
|
|
#include "sim-types.h"
|
|
#include "sim-bits.h"
|
|
|
|
#include "sim-alu.h"
|
|
|
|
#include <stdio.h>
|
|
|
|
|
|
typedef struct {
|
|
char *op;
|
|
unsigned64 arg;
|
|
} alu_op;
|
|
|
|
typedef struct {
|
|
unsigned64 begin;
|
|
alu_op ops[3];
|
|
unsigned64 result;
|
|
int carry;
|
|
int overflow;
|
|
} alu_test;
|
|
|
|
#define MAX_INT16 (32767)
|
|
#define MIN_INT16 (32768)
|
|
|
|
const alu_test alu16_tests[] = {
|
|
/* */
|
|
{ MAX_INT16, { { "ADD", 1 }, }, MIN_INT16, 0, 1, },
|
|
{ MIN_INT16, { { "ADD", -1 }, }, MAX_INT16, 1, 1, },
|
|
{ MAX_INT16, { { "ADD", MIN_INT16 }, }, -1, 0, 0, },
|
|
{ MIN_INT16, { { "ADD", MAX_INT16 }, }, -1, 0, 0, },
|
|
{ MAX_INT16, { { "ADD", MAX_INT16 }, }, MAX_INT16 * 2, 0, 1, },
|
|
{ MIN_INT16, { { "ADD", MIN_INT16 }, }, 0, 1, 1, },
|
|
/* */
|
|
{ 0, { { "SUB", MIN_INT16 }, }, MIN_INT16, 0, 1, },
|
|
{ MAX_INT16, { { "SUB", MAX_INT16 }, }, 0, 0, 0, },
|
|
};
|
|
|
|
|
|
static void
|
|
print_hex (unsigned64 val, int nr_bits)
|
|
{
|
|
switch (nr_bits)
|
|
{
|
|
case 16:
|
|
printf ("0x%04lx", (long) (unsigned16) (val));
|
|
break;
|
|
case 32:
|
|
printf ("0x%08lx", (long) (unsigned32) (val));
|
|
break;
|
|
case 64:
|
|
printf ("0x%08lx%08lx",
|
|
(long) (unsigned32) (val >> 32),
|
|
(long) (unsigned32) (val));
|
|
default:
|
|
abort ();
|
|
}
|
|
}
|
|
|
|
|
|
int errors = 0;
|
|
|
|
|
|
#define N 16
|
|
#include "alu-n-tst.h"
|
|
#undef N
|
|
|
|
#if 0
|
|
#define N 32
|
|
#include "alu-n-tst.h"
|
|
#undef N
|
|
|
|
#define N 64
|
|
#include "alu-n-tst.h"
|
|
#undef N
|
|
#endif
|
|
|
|
int
|
|
main ()
|
|
{
|
|
int i;
|
|
for (i = 0; i < sizeof (alu16_tests) / sizeof (*alu16_tests); i++)
|
|
do_op_16 (alu16_tests + i);
|
|
return (errors != 0);
|
|
}
|