Initial checkin1.5.6

1 files changed, 41 insertions, 0 deletions

diff --git a/modules/tm_hard/tm_hard.cpp b/modules/tm_hard/tm_hard.cpp
new file mode 100644
index 000000000..0005f79c2
--- /dev/null
+++ b/modules/tm_hard/tm_hard.cpp
@@ -0,0 +1,41 @@
+/*************************************************
+* Hardware Timer Source File                     *
+* (C) 1999-2006 The Botan Project                *
+*************************************************/
+
+#include <botan/tm_hard.h>
+#include <botan/config.h>
+
+namespace Botan {
+
+/*************************************************
+* Get the timestamp                              *
+*************************************************/
+u64bit Hardware_Timer::clock() const
+   {
+   u64bit rtc = 0;
+
+#if !defined(__GNUC__)
+   #error "This module uses GCC-style inline asm"
+#endif
+
+#if defined(BOTAN_TARGET_ARCH_IS_IA32) || defined(BOTAN_TARGET_ARCH_IS_AMD64)
+   u32bit rtc_low = 0, rtc_high = 0;
+   asm volatile("rdtsc" : "=d" (rtc_high), "=a" (rtc_low));
+   rtc = ((u64bit)rtc_high << 32) | rtc_low;
+#elif defined(BOTAN_TARGET_ARCH_IS_PPC) || defined(BOTAN_TARGET_ARCH_IS_PPC64)
+   u32bit rtc_low = 0, rtc_high = 0;
+   asm volatile("mftbu %0; mftb %1" : "=r" (rtc_high), "=r" (rtc_low));
+   rtc = ((u64bit)rtc_high << 32) | rtc_low;
+#elif defined(BOTAN_TARGET_ARCH_IS_ALPHA)
+   asm volatile("rpcc %0" : "=r" (rtc));
+#elif defined(BOTAN_TARGET_ARCH_IS_SPARC64)
+   asm volatile("rd %%tick, %0" : "=r" (rtc));
+#else
+   #error "Unsure how to access hardware timer on this system"
+#endif
+
+   return rtc;
+   }
+
+}