--- /dev/null
+/*
+ * Copyright (c) 2003 Hewlett-Packard Development Company, L.P.
+ *
+ * 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.
+ */
+
+/* If AO_ASSUME_WINDOWS98 is defined, we assume Windows 98 or newer. */
+/* If AO_ASSUME_VISTA is defined, we assume Windows Server 2003, Vista */
+/* or later. */
+
+#include "../all_aligned_atomic_load_store.h"
+
+/* Real X86 implementations, except for some old WinChips, appear */
+/* to enforce ordering between memory operations, EXCEPT that a later */
+/* read can pass earlier writes, presumably due to the visible */
+/* presence of store buffers. */
+/* We ignore both the WinChips, and the fact that the official specs */
+/* seem to be much weaker (and arguably too weak to be usable). */
+
+#include "../ordered_except_wr.h"
+
+#include "../test_and_set_t_is_char.h"
+
+#ifndef AO_USE_INTERLOCKED_INTRINSICS
+ /* _Interlocked primitives (Inc, Dec, Xchg, Add) are always available */
+# define AO_USE_INTERLOCKED_INTRINSICS
+#endif
+#include "common32_defs.h"
+
+/* As far as we can tell, the lfence and sfence instructions are not */
+/* currently needed or useful for cached memory accesses. */
+
+/* Unfortunately mfence doesn't exist everywhere. */
+/* IsProcessorFeaturePresent(PF_COMPARE_EXCHANGE128) is */
+/* probably a conservative test for it? */
+
+#if defined(AO_USE_PENTIUM4_INSTRS)
+
+AO_INLINE void
+AO_nop_full(void)
+{
+ __asm { mfence }
+}
+#define AO_HAVE_nop_full
+
+#else
+
+/* We could use the cpuid instruction. But that seems to be slower */
+/* than the default implementation based on test_and_set_full. Thus */
+/* we omit that bit of misinformation here. */
+
+#endif
+
+AO_INLINE AO_TS_VAL_t
+AO_test_and_set_full(volatile AO_TS_t *addr)
+{
+ __asm
+ {
+ mov eax,0xff ; /* AO_TS_SET */
+ mov ebx,addr ;
+ xchg byte ptr [ebx],al ;
+ }
+ /* Ignore possible "missing return value" warning here. */
+}
+#define AO_HAVE_test_and_set_full
+
+#ifdef _WIN64
+# error wrong architecture
+#endif
+
+#ifdef AO_ASSUME_VISTA
+
+/* NEC LE-IT: whenever we run on a pentium class machine we have that
+ * certain function */
+
+#include "../standard_ao_double_t.h"
+#pragma intrinsic (_InterlockedCompareExchange64)
+/* Returns nonzero if the comparison succeeded. */
+AO_INLINE int
+AO_compare_double_and_swap_double_full(volatile AO_double_t *addr,
+ AO_t old_val1, AO_t old_val2,
+ AO_t new_val1, AO_t new_val2)
+{
+ __int64 oldv = (__int64)old_val1 | ((__int64)old_val2 << 32);
+ __int64 newv = (__int64)new_val1 | ((__int64)new_val2 << 32);
+ return _InterlockedCompareExchange64((__int64 volatile *)addr,
+ newv, oldv) == oldv;
+}
+#define AO_HAVE_compare_double_and_swap_double_full
+
+#ifdef __cplusplus
+AO_INLINE int
+AO_double_compare_and_swap_full(volatile AO_double_t *addr,
+ AO_double_t old_val, AO_double_t new_val)
+{
+ return _InterlockedCompareExchange64((__int64 volatile *)addr,
+ new_val.AO_whole, old_val.AO_whole) == old_val.AO_whole;
+}
+#define AO_HAVE_double_compare_and_swap_full
+#endif /* __cplusplus */
+
+#endif /* AO_ASSUME_VISTA */
+
+#include "../ao_t_is_int.h"