mirror of https://github.com/midoks/mdserver-web
pull/436/head
parent
0692537cbd
commit
f1edb26540
@ -0,0 +1,97 @@ |
||||
/*
|
||||
+----------------------------------------------------------------------+ |
||||
| Zend Engine | |
||||
+----------------------------------------------------------------------+ |
||||
| Copyright (c) 1998-2015 Zend Technologies Ltd. (http://www.zend.com) |
|
||||
+----------------------------------------------------------------------+ |
||||
| This source file is subject to version 2.00 of the Zend license, | |
||||
| that is bundled with this package in the file LICENSE, and is | |
||||
| available through the world-wide-web at the following url: | |
||||
| http://www.zend.com/license/2_00.txt. |
|
||||
| If you did not receive a copy of the Zend license and are unable to | |
||||
| obtain it through the world-wide-web, please send a note to | |
||||
| license@zend.com so we can mail you a copy immediately. | |
||||
+----------------------------------------------------------------------+ |
||||
| Authors: Sascha Schumann <sascha@schumann.cx> | |
||||
| Ard Biesheuvel <ard.biesheuvel@linaro.org> | |
||||
+----------------------------------------------------------------------+ |
||||
*/ |
||||
|
||||
/* $Id$ */ |
||||
|
||||
#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) |
||||
|
||||
#elif defined(__x86_64__) && 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) |
||||
|
||||
#elif defined(__arm__) && defined(__GNUC__) |
||||
|
||||
#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ |
||||
long __tmpvar; \
|
||||
__asm__("smull %0, %1, %2, %3\n" \
|
||||
"sub %1, %1, %0, asr #31" \
|
||||
: "=r"(__tmpvar), "=r"(usedval) \
|
||||
: "r"(a), "r"(b)); \
|
||||
if (usedval) (dval) = (double) (a) * (double) (b); \
|
||||
else (lval) = __tmpvar; \
|
||||
} while (0) |
||||
|
||||
#elif defined(__aarch64__) && defined(__GNUC__) |
||||
|
||||
#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ |
||||
long __tmpvar; \
|
||||
__asm__("mul %0, %2, %3\n" \
|
||||
"smulh %1, %2, %3\n" \
|
||||
"sub %1, %1, %0, asr #63\n" \
|
||||
: "=r"(__tmpvar), "=r"(usedval) \
|
||||
: "r"(a), "r"(b)); \
|
||||
if (usedval) (dval) = (double) (a) * (double) (b); \
|
||||
else (lval) = __tmpvar; \
|
||||
} while (0) |
||||
|
||||
#elif SIZEOF_LONG == 4 && defined(HAVE_ZEND_LONG64) |
||||
|
||||
#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ |
||||
zend_long64 __result = (zend_long64) (a) * (zend_long64) (b); \
|
||||
if (__result > LONG_MAX || __result < LONG_MIN) { \
|
||||
(dval) = (double) __result; \
|
||||
(usedval) = 1; \
|
||||
} else { \
|
||||
(lval) = (long) __result; \
|
||||
(usedval) = 0; \
|
||||
} \
|
||||
} while (0) |
||||
|
||||
#else |
||||
|
||||
#define ZEND_SIGNED_MULTIPLY_LONG(a, b, lval, dval, usedval) do { \ |
||||
long __lres = (a) * (b); \
|
||||
long double __dres = (long double)(a) * (long double)(b); \
|
||||
long double __delta = (long double) __lres - __dres; \
|
||||
if ( ((usedval) = (( __dres + __delta ) != __dres))) { \
|
||||
(dval) = __dres; \
|
||||
} else { \
|
||||
(lval) = __lres; \
|
||||
} \
|
||||
} while (0) |
||||
|
||||
#endif |
Loading…
Reference in new issue