--- /dev/null
+/* src/vm/jit/powerpc/atomic.hpp - PowerPC atomic instructions
+
+ Copyright (C) 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
+
+ This file is part of CACAO.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+*/
+
+
+#ifndef _ATOMIC_HPP
+#define _ATOMIC_HPP
+
+#include "config.h"
+
+#include <stdint.h>
+
+
+/**
+ * An atomic compare and swap for 32-bit integer values.
+ *
+ * @param p Pointer to memory address.
+ * @param oldval Old value to be expected.
+ * @param newval New value to be stored.
+ *
+ * @return value of the memory location before the store
+ */
+inline static uint32_t Atomic_cas_32(volatile uint32_t *p, uint32_t oldval, uint32_t newval)
+{
+ uint32_t temp;
+ uint32_t result;
+
+ __asm__ __volatile__ ("\n\
+1: lwarx %0,0,%4 \n \
+ subf. %1,%0,%2 \n \
+ bne- 2f \n \
+ or %1,%3,%3 \n \
+ stwcx. %1,0,%4 \n \
+ bne- 1b \n \
+2: \n \
+"
+ : "=&r"(result), "=&r"(temp)
+ : "r"(oldval), "r"(newval), "r"(p)
+ : "cr0", "memory");
+
+ return result;
+}
+
+
+/**
+ * An atomic compare and swap for 64-bit integer values.
+ *
+ * @param p Pointer to memory address.
+ * @param oldval Old value to be expected.
+ * @param newval New value to be stored.
+ *
+ * @return value of the memory location before the store
+ */
+inline static uint64_t Atomic_cas_64(volatile uint64_t *p, uint64_t oldval, uint64_t newval)
+{
+ uint64_t result;
+
+ log_println("Atomic_cas_64: Not implemented.");
+
+ return result;
+}
+
+
+/**
+ * An atomic compare and swap for pointer values.
+ *
+ * @param p Pointer to memory address.
+ * @param oldval Old value to be expected.
+ * @param newval New value to be stored.
+ *
+ * @return value of the memory location before the store
+ */
+inline static void* Atomic_cas_ptr(volatile void** p, void* oldval, void* newval)
+{
+ return (void*) Atomic_cas_32((volatile uint32_t*) p, (uint32_t) oldval, (uint32_t) newval);
+}
+
+
+/**
+ * A memory barrier.
+ */
+inline static void Atomic_mb(void)
+{
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+
+
+#define STORE_ORDER_BARRIER() __asm__ __volatile__ ("" : : : "memory");
+#define MEMORY_BARRIER_AFTER_ATOMIC() __asm__ __volatile__ ("isync" : : : "memory");
+
+#endif /* _ATOMIC_HPP */
+
+
+/*
+ * These are local overrides for various environment variables in Emacs.
+ * Please do not remove this and leave it at the end of the file, where
+ * Emacs will automagically detect them.
+ * ---------------------------------------------------------------------
+ * Local variables:
+ * mode: c++
+ * indent-tabs-mode: t
+ * c-basic-offset: 4
+ * tab-width: 4
+ * End:
+ * vim:noexpandtab:sw=4:ts=4:
+ */
+++ /dev/null
-#ifndef _MACHINE_INSTR_H
-#define _MACHINE_INSTR_H
-
-static inline long compare_and_swap(long *p, long oldval, long newval)
-{
- long ret, temp;
-
- __asm__ __volatile__ ("\n\
-1: lwarx %0,0,%4 \n\
- subf. %1,%0,%2 \n\
- bne- 2f \n\
- or %1,%3,%3 \n\
- stwcx. %1,0,%4 \n\
- bne- 1b \n\
-2: \n\
-" : "=&r"(ret), "=&r"(temp)
- : "r"(oldval), "r"(newval), "r"(p) : "cr0", "memory");
-
- return ret;
-}
-
-#define STORE_ORDER_BARRIER() __asm__ __volatile__ ("" : : : "memory");
-#define MEMORY_BARRIER_AFTER_ATOMIC() __asm__ __volatile__ ("isync" : : : "memory");
-#define MEMORY_BARRIER() __asm__ __volatile__ ( "sync" : : : "memory" );
-
-#endif
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