[RFC/PATCH, 3/4] readX_check() performance evaluation

From: Hironobu Ishii
Date: Tue Jan 27 2004 - 21:01:23 EST


This is a patch for rawread 1.0.3.
Original rawread 1.0.3 depends on i386.

Thanks,
Hironobu Ishii

--- rawread.c.old 2004-01-22 19:33:43.000000000 +0900
+++ rawread.c 2004-01-27 23:26:24.406717936 +0900
@@ -94,8 +94,14 @@

__inline__ unsigned long long int rdtsc()
{
- unsigned long long int x;
- __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
+ unsigned long long int x;
+#if __i386__
+ __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
+#elif __ia64__
+ __asm__ volatile ("mov r8 = ar44");
+#else
+ #error "Please write your own rdtsc()"
+#endif
return x;
}


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