From: Sascha Schumann <sas@php.net>
Date: Wed, 17 Mar 2004 22:23:15 +0000 (+0000)
Subject: Readd x86 implementation
X-Git-Tag: php-5.0.0RC1~18
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7aa832aba25fcf4352fde370a77bf6021d757565;p=php

Readd x86 implementation
---

diff --git a/Zend/zend_multiply.h b/Zend/zend_multiply.h
index 81851b6f24..7570572cc0 100644
--- a/Zend/zend_multiply.h
+++ b/Zend/zend_multiply.h
@@ -12,12 +12,27 @@
    | obtain it through the world-wide-web, please send a note to          |
    | license@zend.com so we can mail you a copy immediately.              |
    +----------------------------------------------------------------------+
-   | Author: Ard Biesheuvel <ard@ard.nu>                                  |
+   | Authors: Sascha Schumann <sascha@schumann.cx>                        |
+   |          Ard Biesheuvel <ard@ard.nu>                                 |
    +----------------------------------------------------------------------+
 */
 
 /* $Id$ */
 
+#if defined(__i386__) && defined(__GNUC__)
+
+#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do {	\
+	long __tmpvar; 													\
+	__asm__ ("imul %3,%0\n"											\
+		"adc $0,%1" 												\
+			: "=r"(__tmpvar),"=r"(usedval) 							\
+			: "0"(a), "r"(b), "1"(0));								\
+	if (usedval) (dval) = (double) (a) * (double) (b);				\
+	else (lval) = __tmpvar;											\
+} while (0)
+
+#else
+
 #define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do {		\
 	long   __lres  = (a) * (b);											\
 	double __dres  = (double)(a) * (double)(b);							\
@@ -28,3 +43,5 @@
 		(lval) = __lres;												\
 	}																	\
 } while (0)
+
+#endif