added floating point optimizations to the JIT

standarised a bit more x86_macros.h
some asm optimizations to bintools extension

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40837

plugins/include/float.inc

@@ -18,17 +18,6 @@
 #endif
 #define _float_included
 
-/**
- * Different methods of rounding.
- */
-enum floatround_method
-{
-	floatround_round = 0,		/**< Standard IEEE rounding */
-	floatround_floor,			/**< Next lowest integer value. */
-	floatround_ceil,			/**< Next highest integer value. */
-	floatround_tozero			/** Closest integer to zero. */
-};
-
 /**
  * Converts an integer into a floating point value.
  *
@@ -82,13 +71,36 @@ native Float:FloatSub(Float:oper1, Float:oper2);
 native Float:FloatFraction(Float:value);
 
 /**
- * Rounds a float into an integer number.
+ * Rounds a float to the closest integer to zero.
  *
  * @param value			Input value to be rounded.
- * @param method		Rounding method to use.
  * @return				Rounded value.
  */
-native FloatRound(Float:value, floatround_method:method=floatround_round);
+native RoundToZero(Float:value);
+
+/**
+ * Rounds a float to the next highest integer value.
+ *
+ * @param value			Input value to be rounded.
+ * @return				Rounded value.
+ */
+native RoundToCeil(Float:value);
+
+/**
+ * Rounds a float to the next lowest integer value.
+ *
+ * @param value			Input value to be rounded.
+ * @return				Rounded value.
+ */
+native RoundToFloor(Float:value);
+
+/**
+ * Standard IEEE rounding.
+ *
+ * @param value			Input value to be rounded.
+ * @return				Rounded value.
+ */
+native RountToNearest(Float:value);
 
 /**
  * Compares two floats.