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Fix __readmsr and __writemsr on amd64

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svn path=/branches/ros-amd64-bringup/; revision=35546
This commit is contained in:
Timo Kreuzer
2008-08-23 01:18:07 +00:00
parent 71d0b42136
commit a09e2d91b6
1 changed files with 10 additions and 0 deletions
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reactos/include/psdk/intrin_x86.h
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@@ -1200,14 +1200,24 @@ static __inline__ __attribute__((always_inline)) void __invlpg(void * const Addr
/*** System operations ***/
static __inline__ __attribute__((always_inline)) unsigned long long __readmsr(const int reg)
{
#ifdef _M_AMD64
unsigned long low, high;
__asm__ __volatile__("rdmsr" : "=a" (low), "=d" (high) : "c" (reg));
return (high << 32) | low;
#else
unsigned long long retval;
__asm__ __volatile__("rdmsr" : "=A" (retval) : "c" (reg));
return retval;
#endif
}
static __inline__ __attribute__((always_inline)) void __writemsr(const unsigned long Register, const unsigned long long Value)
{
#ifdef _M_AMD64
__asm__ __volatile__("wrmsr" : : "a" (Value), "d" (Value >> 32), "c" (Register));
#else
__asm__ __volatile__("wrmsr" : : "A" (Value), "c" (Register));
#endif
}
static __inline__ __attribute__((always_inline)) unsigned long long __readpmc(const int counter)