(svn r4191) - Codechange: Properly set newlines and id for os_timer.c

os_timer.c

@@ -1,68 +1,70 @@
-#include "stdafx.h"
+/* $Id$ */
-
+
-#undef RDTSC_AVAILABLE
+#include "stdafx.h"
-
+
-/* rdtsc for MSC_VER, uses simple inline assembly, or _rdtsc
+#undef RDTSC_AVAILABLE
- * from external win64.asm because VS2005 does not support inline assembly */
+
-#if defined(_MSC_VER) && !defined(RDTSC_AVAILABLE)
+/* rdtsc for MSC_VER, uses simple inline assembly, or _rdtsc
-# if defined (_M_AMD64)
+ * from external win64.asm because VS2005 does not support inline assembly */
-extern uint64 _rdtsc(void);
+#if defined(_MSC_VER) && !defined(RDTSC_AVAILABLE)
-#	else
+# if defined (_M_AMD64)
-uint64 _declspec(naked) _rdtsc(void)
+extern uint64 _rdtsc(void);
-{
+#	else
-	_asm {
+uint64 _declspec(naked) _rdtsc(void)
-		rdtsc
+{
-		ret
+	_asm {
-	}
+		rdtsc
-}
+		ret
-# endif
+	}
-# define RDTSC_AVAILABLE
+}
-#endif
+# endif
-
+# define RDTSC_AVAILABLE
-/* rdtsc for OS/2. Hopefully this works, who knows */
+#endif
-#if defined (__WATCOMC__) && !defined(RDTSC_AVAILABLE)
+
-unsigned __int64 _rdtsc( void);
+/* rdtsc for OS/2. Hopefully this works, who knows */
-# pragma aux _rdtsc = 0x0F 0x31 value [edx eax] parm nomemory modify exact [edx eax] nomemory;
+#if defined (__WATCOMC__) && !defined(RDTSC_AVAILABLE)
-# define RDTSC_AVAILABLE
+unsigned __int64 _rdtsc( void);
-#endif
+# pragma aux _rdtsc = 0x0F 0x31 value [edx eax] parm nomemory modify exact [edx eax] nomemory;
-
+# define RDTSC_AVAILABLE
-/* rdtsc for all other *nix-en (hopefully). Use GCC syntax */
+#endif
-#if defined(__i386__) || defined(__x86_64__) && !defined(RDTSC_AVAILABLE)
+
-uint64 _rdtsc(void)
+/* rdtsc for all other *nix-en (hopefully). Use GCC syntax */
-{
+#if defined(__i386__) || defined(__x86_64__) && !defined(RDTSC_AVAILABLE)
-	uint32 high, low;
+uint64 _rdtsc(void)
-	__asm__ __volatile__ ("rdtsc" : "=a" (low), "=d" (high));
+{
-	return ((uint64)high << 32) | low;
+	uint32 high, low;
-}
+	__asm__ __volatile__ ("rdtsc" : "=a" (low), "=d" (high));
-# define RDTSC_AVAILABLE
+	return ((uint64)high << 32) | low;
-#endif
+}
-
+# define RDTSC_AVAILABLE
-/* rdtsc for PPC which has this not */
+#endif
-#if defined(__POWERPC__) && !defined(RDTSC_AVAILABLE)
+
-uint64 _rdtsc(void)
+/* rdtsc for PPC which has this not */
-{
+#if defined(__POWERPC__) && !defined(RDTSC_AVAILABLE)
-	uint32 high = 0, high2 = 0, low;
+uint64 _rdtsc(void)
-	/* PPC does not have rdtsc, so we cheat by reading the two 32-bit time-counters
+{
-	 * it has, 'Move From Time Base (Upper)'. Since these are two reads, in the
+	uint32 high = 0, high2 = 0, low;
-	 * very unlikely event that the lower part overflows to the upper part while we
+	/* PPC does not have rdtsc, so we cheat by reading the two 32-bit time-counters
-	 * read it; we double-check and reread the registers */
+	 * it has, 'Move From Time Base (Upper)'. Since these are two reads, in the
-	asm volatile (
+	 * very unlikely event that the lower part overflows to the upper part while we
-				  "mftbu %0\n"
+	 * read it; we double-check and reread the registers */
-				  "mftb %1\n"
+	asm volatile (
-				  "mftbu %2\n"
+				  "mftbu %0\n"
-				  "cmpw %3,%4\n"
+				  "mftb %1\n"
-				  "bne- $-16\n"
+				  "mftbu %2\n"
-				  : "=r" (high), "=r" (low), "=r" (high2)
+				  "cmpw %3,%4\n"
-				  : "0" (high), "2" (high2)
+				  "bne- $-16\n"
-				  );
+				  : "=r" (high), "=r" (low), "=r" (high2)
-	return ((uint64)high << 32) | low;
+				  : "0" (high), "2" (high2)
-}
+				  );
-# define RDTSC_AVAILABLE
+	return ((uint64)high << 32) | low;
-#endif
+}
-
+# define RDTSC_AVAILABLE
-/* In all other cases we have no support for rdtsc. No major issue,
+#endif
- * you just won't be able to profile your code with TIC()/TOC() */
+
-#if !defined(RDTSC_AVAILABLE)
+/* In all other cases we have no support for rdtsc. No major issue,
-#warning "OS has no support for rdtsc()"
+ * you just won't be able to profile your code with TIC()/TOC() */
-uint64 _rdtsc(void) {return 0;}
+#if !defined(RDTSC_AVAILABLE)
-#endif
+#warning "OS has no support for rdtsc()"
+uint64 _rdtsc(void) {return 0;}
+#endif