* src/base/ftcalc.c (FT_MulFix): Produce more efficient assembly.HEADmaster

Improve the version of FT_MulFix() which is used when a sixty-four bit
interger type is available.

2 files changed, 7 insertions, 17 deletions

diff --git a/ChangeLog b/ChangeLog
index 0744fa5b..af3c9084 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2011-04-04  James Cloos  <cloos@jhcloos.com>
+	* src/base/ftcalc.c (FT_MulFix): Produce more efficient
+	assembly.
+
 2011-04-04  Werner Lemberg  <wl@gnu.org>
 
 	Fix formatting of autofit debug dumps.
diff --git a/src/base/ftcalc.c b/src/base/ftcalc.c
index 3892fabf..b7866abc 100644
--- a/src/base/ftcalc.c
+++ b/src/base/ftcalc.c
@@ -202,25 +202,11 @@
 
 #else
 
-    FT_Int   s = 1;
-    FT_Long  c;
+    FT_Int64  c;
 
+    c = (FT_Int64)a * b;
 
-    if ( a < 0 )
-    {
-      a = -a;
-      s = -1;
-    }
-
-    if ( b < 0 )
-    {
-      b = -b;
-      s = -s;
-    }
-
-    c = (FT_Long)( ( (FT_Int64)a * b + 0x8000L ) >> 16 );
-
-    return ( s > 0 ) ? c : -c;
+    return (FT_Long)((c + 0x8000 - (c < 0)) >> 16);
 
 #endif /* FT_MULFIX_ASSEMBLER */
   }