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* _ReadBarrier, _WriteBarrier: defined as aliases for _ReadWriteBarrier. Alas

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* __emul, __emulu: fixed to specify instruction length suffix
 * __rdtsc: removed "__volatile__" attribute from the inline asm. Hyperion recommends you fix your goddamn code instead
 * __emul, __emulu, __rdtsc, __readmsr, __readpmc: return 64-bit values with the "=A" constraint instead of horrible kludge

svn path=/trunk/; revision=25617
This commit is contained in:
KJK::Hyperion
2007-01-24 16:53:44 +00:00
parent f1e71db26d
commit 9c1f53ca78
1 changed files with 19 additions and 102 deletions
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reactos/include/psdk/intrin.h
+19 -102
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@@ -85,8 +85,6 @@
/*** Atomic operations ***/
/* TODO: _ReadBarrier */
/* TODO: _WriteBarrier */
#if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100
#define _ReadWriteBarrier() __sync_synchronize()
@@ -98,6 +96,10 @@ static __inline__ __attribute__((always_inline)) _MemoryBarrier(void)
#define _ReadWriteBarrier() _MemoryBarrier()
#endif
/* BUGBUG: GCC only supports full barriers */
#define _ReadBarrier _ReadWriteBarrier
#define _WriteBarrier _ReadWriteBarrier
#if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100
static __inline__ __attribute__((always_inline)) char _InterlockedCompareExchange8(volatile char * const Destination, const char Exchange, const char Comperand)
@@ -774,50 +776,16 @@ static __inline__ __attribute__((always_inline)) unsigned long long __ull_rshift
/*** 64-bit math ***/
static __inline__ __attribute__((always_inline)) long long __emul(const int a, const int b)
{
unsigned long lo32;
long hi32;
__asm__("imul %[b]" : "=a" (lo32), "=d" (hi32) : [a] "a" (a), [b] "rm" (b));
{
union u_
{
long long ll;
struct s_
{
unsigned long lo32;
long hi32;
}
s;
}
u = { s : { lo32 : lo32, hi32 : hi32 } };
return u.ll;
}
long long retval;
__asm__("imull %[b]" : "=A" (retval) : [a] "a" (a), [b] "rm" (b));
return retval;
}
static __inline__ __attribute__((always_inline)) unsigned long long __emulu(const unsigned int a, const unsigned int b)
{
unsigned long lo32;
unsigned long hi32;
__asm__("mul %[b]" : "=a" (lo32), "=d" (hi32) : [a] "a" (a), [b] "rm" (b));
{
union u_
{
unsigned long long ull;
struct s_
{
unsigned long lo32;
unsigned long hi32;
}
s;
}
u = { s : { lo32 : lo32, hi32 : hi32 } };
return u.ull;
}
unsigned long long retval;
__asm__("mull %[b]" : "=A" (retval) : [a] "a" (a), [b] "rm" (b));
return retval;
}
@@ -915,26 +883,9 @@ static __inline__ __attribute__((always_inline)) void __cpuid(int CPUInfo[], con
static __inline__ __attribute__((always_inline)) unsigned long long __rdtsc(void)
{
unsigned long lo32;
unsigned long hi32;
__asm__ __volatile__("rdtsc" : "=a" (lo32), "=d" (hi32));
{
union u_
{
unsigned long long ull;
struct s_
{
unsigned long lo32;
unsigned long hi32;
}
s;
}
u = { s : { lo32 : lo32, hi32 : hi32 } };
return u.ull;
}
unsigned long long retval;
__asm__("rdtsc" : "=A" (retval));
return retval;
}
@@ -1013,26 +964,9 @@ static __inline__ __attribute__((always_inline)) void __invlpg(void * const Addr
/*** System operations ***/
static __inline__ __attribute__((always_inline)) unsigned long long __readmsr(const int reg)
{
unsigned long lo32;
unsigned long hi32;
__asm__("rdmsr" : "=a" (lo32), "=d" (hi32) : "c" (reg));
{
union u_
{
unsigned long long ull;
struct s_
{
unsigned long lo32;
unsigned long hi32;
}
s;
}
u = { s : { lo32 : lo32, hi32 : hi32 } };
return u.ull;
}
unsigned long long retval;
__asm__("rdmsr" : "=A" (retval) : "c" (reg));
return retval;
}
static __inline__ __attribute__((always_inline)) void __writemsr(const unsigned long Register, const unsigned long long Value)
@@ -1049,26 +983,9 @@ static __inline__ __attribute__((always_inline)) void __writemsr(const unsigned
static __inline__ __attribute__((always_inline)) unsigned long long __readpmc(const int counter)
{
unsigned long lo32;
unsigned long hi32;
__asm__("rdpmc" : "=a" (lo32), "=d" (hi32) : "c" (counter));
{
union u_
{
unsigned long long ull;
struct s_
{
unsigned long lo32;
unsigned long hi32;
}
s;
}
u = { s : { lo32 : lo32, hi32 : hi32 } };
return u.ull;
}
unsigned long long retval;
__asm__("rdpmc" : "=A" (retval) : "c" (counter));
return retval;
}
/* NOTE: an immediate value for 'a' will raise an ICE in Visual C++ */