diff options
| author | IOhannes m zmölnig <zmoelnig@users.sourceforge.net> | 2008-02-08 13:00:32 +0000 |
|---|---|---|
| committer | IOhannes m zmölnig <zmoelnig@users.sourceforge.net> | 2008-02-08 13:00:32 +0000 |
| commit | 4d84d14ac1aa13958eaa2971b03f7f929a519105 (patch) | |
| tree | 6579d3f2cea5410a10c4baac8d0f372fb0dff372 /desiredata/src/m_atomic.h | |
| parent | b334d38aefbd8e0e159d7af6c20d63c5d2b64859 (diff) | |
reorganized
svn path=/trunk/; revision=9400
Diffstat (limited to 'desiredata/src/m_atomic.h')
| -rw-r--r-- | desiredata/src/m_atomic.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/desiredata/src/m_atomic.h b/desiredata/src/m_atomic.h new file mode 100644 index 00000000..f7314d11 --- /dev/null +++ b/desiredata/src/m_atomic.h @@ -0,0 +1,55 @@ +/* Copyright (c) 2005, Tim Blechmann + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "LICENSE.txt" in this distribution. */ + + +#if defined(__GNUC__) && (defined(_X86_) || defined(__i386__) || defined(__i586__) || defined(__i686__)) + +/* gcc, x86 */ +#define ATOMIC_INC(X) \ + asm __volatile__("lock incl (%0) \n" \ + : :"r"(X) :"memory") + + +#define ATOMIC_DEC(X) \ + asm __volatile__("lock decl (%0) \n" \ + : :"r"(X) :"memory") + + + +#elif defined(NT) && defined(_MSC_VER) + +/* msvc */ +#include <windows.h> +#define ATOMIC_INC(X) InterlockedIncrement(X) +#define ATOMIC_DEC(X) InterlockedDecrement(X) + + +#elif defined(__GNUC__) && defined(__POWERPC__) + +/* ppc */ +#define ATOMIC_INC(X) { \ +int X##_i; \ +asm __volatile__( \ + "1: \n" \ + "lwarx %0, 0, %2 \n" \ + "addic %0, %0, 1 \n" \ + "stwcx. %0, 0, %2 \n" \ + "bne- 1b \n" \ + :"=&r"(X##_i), "=m"(X) \ + : "r" (&X), "m"(X) \ + : "cc"); } + + +#define ATOMIC_DEC(X) { \ +int X##_i; \ +asm __volatile__( \ + "1: \n" \ + "lwarx %0, 0, %2 \n" \ + "addic %0, %0, -1 \n" \ + "stwcx. %0, 0, %2 \n" \ + "bne- 1b \n" \ + :"=&r"(X##_i), "=m"(X) \ + : "r" (&X), "m"(X) \ + : "cc"); } +#endif |