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