(experimental) Upgrade to libtommath 1.0 (actually by merging all changes between libtommath 0.42.0 and 1.0). Still to be tested thourougly, before doing anything with it.

1 files changed, 17 insertions, 10 deletions

diff --git a/libtommath/etc/tune.c b/libtommath/etc/tune.c
index acb146f..c2ac998 100644
--- a/libtommath/etc/tune.c
+++ b/libtommath/etc/tune.c
@@ -6,18 +6,23 @@
 #include <time.h>
 
 /* how many times todo each size mult.  Depends on your computer.  For slow computers
- * this can be low like 5 or 10.  For fast [re: Athlon] should be 25 - 50 or so 
+ * this can be low like 5 or 10.  For fast [re: Athlon] should be 25 - 50 or so
  */
 #define TIMES (1UL<<14UL)
 
+#ifndef X86_TIMER
+
 /* RDTSC from Scott Duplichan */
 static ulong64 TIMFUNC (void)
    {
    #if defined __GNUC__
       #if defined(__i386__) || defined(__x86_64__)
-         unsigned long long a;
-         __asm__ __volatile__ ("rdtsc\nmovl %%eax,%0\nmovl %%edx,4+%0\n"::"m"(a):"%eax","%edx");
-         return a;
+        /* version from http://www.mcs.anl.gov/~kazutomo/rdtsc.html
+         * the old code always got a warning issued by gcc, clang did not complain...
+         */
+        unsigned hi, lo;
+        __asm__ __volatile__ ("rdtsc" : "=a"(lo), "=d"(hi));
+        return ((ulong64)lo)|( ((ulong64)hi)<<32);
       #else /* gcc-IA64 version */
          unsigned long result;
          __asm__ __volatile__("mov %0=ar.itc" : "=r"(result) :: "memory");
@@ -42,8 +47,6 @@ static ulong64 TIMFUNC (void)
    }
 
 
-#ifndef X86_TIMER
-
 /* generic ISO C timer */
 ulong64 LBL_T;
 void t_start(void) { LBL_T = TIMFUNC(); }
@@ -67,7 +70,7 @@ ulong64 time_mult(int size, int s)
   mp_rand (&a, size);
   mp_rand (&b, size);
 
-  if (s == 1) { 
+  if (s == 1) {
       KARATSUBA_MUL_CUTOFF = size;
   } else {
       KARATSUBA_MUL_CUTOFF = 100000;
@@ -95,7 +98,7 @@ ulong64 time_sqr(int size, int s)
 
   mp_rand (&a, size);
 
-  if (s == 1) { 
+  if (s == 1) {
       KARATSUBA_SQR_CUTOFF = size;
   } else {
       KARATSUBA_SQR_CUTOFF = 100000;
@@ -117,7 +120,7 @@ main (void)
   ulong64 t1, t2;
   int x, y;
 
-  for (x = 8; ; x += 2) { 
+  for (x = 8; ; x += 2) {
      t1 = time_mult(x, 0);
      t2 = time_mult(x, 1);
      printf("%d: %9llu %9llu, %9llu\n", x, t1, t2, t2 - t1);
@@ -125,7 +128,7 @@ main (void)
   }
   y = x;
 
-  for (x = 8; ; x += 2) { 
+  for (x = 8; ; x += 2) {
      t1 = time_sqr(x, 0);
      t2 = time_sqr(x, 1);
      printf("%d: %9llu %9llu, %9llu\n", x, t1, t2, t2 - t1);
@@ -136,3 +139,7 @@ main (void)
 
   return 0;
 }
+
+/* $Source$ */
+/* $Revision$ */
+/* $Date$ */