/* Test l.mul, l.mac and l.macrc instructions */
|
/* Test l.mul, l.mac and l.macrc instructions */
|
#include "support.h"
|
#include "support.h"
|
|
|
#define T1 0xa6312f33
|
#define T1 0xa6312f33
|
#define T2 0x0d4de375
|
#define T2 0x0d4de375
|
#define T3 0x61ab48dc
|
#define T3 0x61ab48dc
|
|
|
#ifndef OR1K
|
#ifndef OR1K
|
|
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#define LONGEST long long
|
#define LONGEST long long
|
|
|
LONGEST acc = 0;
|
LONGEST acc = 0;
|
#define MAC(x,y) {\
|
#define MAC(x,y) {\
|
/*printf ("[%08x,%08x]\t", (unsigned long)(x), (unsigned long)(y));*/\
|
printf ("[%08x,%08x]\t", (unsigned long)(x), (unsigned long)(y));\
|
acc += (LONGEST)(x) * (LONGEST)(y);\
|
acc += (LONGEST)(x) * (LONGEST)(y);\
|
/*printf ("(%08x,%08x)\n", (unsigned long)(acc >> 32), (unsigned long)(acc & 0xffffffff));*/\
|
printf ("(%08x,%08x)\n", (unsigned long)(acc >> 32), (unsigned long)(acc & 0xffffffff));\
|
}
|
}
|
#define MACRC (macrc())
|
#define MACRC (macrc())
|
static inline long macrc() {
|
static inline long macrc() {
|
long result = acc >> 28;
|
long result = acc >> 28;
|
//printf ("<%08x>\n", (unsigned long)result);
|
//printf ("<%08x>\n", (unsigned long)result);
|
acc = 0;
|
acc = 0;
|
return result;
|
return result;
|
}
|
}
|
#else /* OR1K */
|
#else /* OR1K */
|
|
|
#define MAC(x,y) asm volatile ("l.mac\t%0,%1" : : "r" (x), "r" (y))
|
#define MAC(x,y) asm volatile ("l.mac\t%0,%1" : : "r" (x), "r" (y))
|
#define MACRC macrc()
|
#define MACRC macrc()
|
static inline long macrc() {
|
static inline long macrc() {
|
long x;
|
long x;
|
asm volatile ("l.macrc\t%0" : "=r" (x));
|
asm volatile ("l.macrc\t%0" : "=r" (x));
|
return x;
|
return x;
|
}
|
}
|
|
|
#endif /* SIM */
|
#endif /* SIM */
|
|
|
long test_mul (long a, long b) {
|
long test_mul (long a, long b) {
|
long t;
|
long t;
|
int i;
|
int i;
|
for (i = 0; i < 100; i++) {
|
for (i = 0; i < 100; i++) {
|
t = a * b;
|
t = a * b;
|
t += 153;
|
t += 153;
|
a = t - a * 17;
|
a = t - a * 17;
|
b = t + b * 13333;
|
b = t + b * 13333;
|
|
|
/*printf ("(%08x,%08x)", a, b);*/
|
/*printf ("(%08x,%08x)", a, b);*/
|
}
|
}
|
return a;
|
return a;
|
}
|
}
|
|
|
long test_mac (long a, long b) {
|
long test_mac (long a, long b) {
|
long t = 1234567;
|
long t = 1234567;
|
int i;
|
int i;
|
for (i = 0; i < 100; i++) {
|
for (i = 0; i < 100; i++) {
|
MAC (a, b);
|
MAC (a, b);
|
if (i & 3) {
|
if (i & 3) {
|
a = t - a;
|
a = t - a;
|
b = t + a;
|
b = t + a;
|
} else {
|
} else {
|
a = MACRC;
|
a = MACRC;
|
}
|
}
|
MAC (a, 3);
|
MAC (a, 3);
|
MAC (a, 5);
|
MAC (a, 5);
|
MAC (a, 7);
|
MAC (a, 7);
|
//printf ("(%08x,%08x)", a, b);
|
//printf ("(%08x,%08x)", a, b);
|
}
|
}
|
return a;
|
return a;
|
}
|
}
|
|
|
long test_mul_mac (long a, long b) {
|
long test_mul_mac (long a, long b) {
|
long t = 1;
|
long t = 1;
|
int i;
|
int i;
|
for (i = 0; i < 100; i++) {
|
for (i = 0; i < 100; i++) {
|
a = a * 119;
|
a = a * 119;
|
MAC (a, b);
|
MAC (a, b);
|
MAC (b, 423490431);
|
MAC (b, 423490431);
|
MAC (b, 113);
|
MAC (b, 113);
|
MAC (a, 997);
|
MAC (a, 997);
|
b = 87 * a * t;
|
b = 87 * a * t;
|
if (i & 3) {
|
if (i & 3) {
|
t = a * b;
|
t = a * b;
|
a = t - a;
|
a = t - a;
|
b = t + a;
|
b = t + a;
|
} else {
|
} else {
|
a = MACRC;
|
a = MACRC;
|
}
|
}
|
// printf ("(%08x,%08x)", a, b);
|
// printf ("(%08x,%08x)", a, b);
|
}
|
}
|
return a;
|
return a;
|
}
|
}
|
|
|
int main () {
|
int main () {
|
unsigned t1 = test_mul (888888887, 0x87654321);
|
unsigned t1;
|
unsigned t2 = test_mac (888888887, 0x87654321);
|
unsigned t2;
|
unsigned t3 = test_mul_mac (888888887, 0x87654321);
|
unsigned t3;
|
|
printf ("%08x\n", MACRC);
|
|
t1 = test_mul (888888887, 0x87654321);
|
|
t2 = test_mac (888888887, 0x87654321);
|
|
t3 = test_mul_mac (888888887, 0x87654321);
|
printf ("%08x, expected %08x\n", t1, T1);
|
printf ("%08x, expected %08x\n", t1, T1);
|
printf ("%08x, expected %08x\n", t2, T2);
|
printf ("%08x, expected %08x\n", t2, T2);
|
printf ("%08x, expected %08x\n", t3, T3);
|
printf ("%08x, expected %08x\n", t3, T3);
|
report (t1 ^ t2 ^ t3 ^ T1 ^ T2 ^ T3 ^ 0xdeaddead);
|
report (t1 ^ t2 ^ t3 ^ T1 ^ T2 ^ T3 ^ 0xdeaddead);
|
if (t1 != T1 || t2 != T2 || t3 != T3) {
|
if (t1 != T1 || t2 != T2 || t3 != T3) {
|
printf ("Test failed!\n");
|
printf ("Test failed!\n");
|
if (t1 != T1) exit (1);
|
if (t1 != T1) exit (1);
|
if (t2 != T2) exit (2);
|
if (t2 != T2) exit (2);
|
if (t3 != T3) exit (3);
|
if (t3 != T3) exit (3);
|
} else {
|
} else {
|
printf ("Test succesful.\n");
|
printf ("Test succesful.\n");
|
exit (0);
|
exit (0);
|
}
|
}
|
exit (0);
|
exit (0);
|
}
|
}
|
|
|
