diff options
Diffstat (limited to 'lfq_cas.h')
-rw-r--r-- | lfq_cas.h | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/lfq_cas.h b/lfq_cas.h deleted file mode 100644 index a77e1ef..0000000 --- a/lfq_cas.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * File : lfq_cas.h - * Author : Jérémy Zurcher <jeremy@asynk.ch> - * Date : 01/11/09 - * License : - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be - * included in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - */ - -#include "lfq.h" - -/* CMPXCHG8B m64 Compare EDX:EAX with m64. If equal, set ZF and load ECX:EBX into m64. Else, clear ZF and load m64 into EDX:EAX. */ -static inline unsigned int cas( volatile struct split *mem, - volatile struct split old, - volatile struct split new ) { - char result; - __asm__ __volatile__("lock; cmpxchg8b %0; setz %1;" - : "=m"(*mem), "=q"(result) - : "m"(*mem), "d" (old.count), "a" (old.next), - "c" (new.count), "b" (new.next) - : "memory"); - return (int)result; -} - |