diff --git a/reactos/include/crt/mingw32/intrin_x86.h b/reactos/include/crt/mingw32/intrin_x86.h
index 60f5ea9ebec..00ef94d79d4 100644
--- a/reactos/include/crt/mingw32/intrin_x86.h
+++ b/reactos/include/crt/mingw32/intrin_x86.h
@@ -88,6 +88,14 @@ __INTRIN_INLINE void* memcpy(void* dest, const void* source, size_t num)
 
 /*** Memory barriers ***/
 
+__INTRIN_INLINE void _ReadWriteBarrier(void);
+__INTRIN_INLINE void _mm_mfence(void);
+__INTRIN_INLINE void _mm_lfence(void);
+__INTRIN_INLINE void _mm_sfence(void);
+#ifdef __x86_64__
+__INTRIN_INLINE void __faststorefence(void);
+#endif
+
 __INTRIN_INLINE void _ReadWriteBarrier(void)
 {
 	__asm__ __volatile__("" : : : "memory");
@@ -127,8 +135,47 @@ __INTRIN_INLINE void __faststorefence(void)
 
 /*** Atomic operations ***/
 
+__INTRIN_INLINE long _InterlockedAddLargeStatistic(volatile long long * const Addend, const long Value);
+__INTRIN_INLINE unsigned char _interlockedbittestandreset(volatile long * a, const long b);
+__INTRIN_INLINE unsigned char _interlockedbittestandset(volatile long * a, const long b);
+#if defined(_M_AMD64)
+__INTRIN_INLINE unsigned char _interlockedbittestandreset64(volatile long long * a, const long long b);
+__INTRIN_INLINE unsigned char _interlockedbittestandset64(volatile long long * a, const long long b);
+#endif
+
 #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100
 
+__INTRIN_INLINE char _InterlockedCompareExchange8(volatile char * const Destination, const char Exchange, const char Comperand);
+__INTRIN_INLINE short _InterlockedCompareExchange16(volatile short * const Destination, const short Exchange, const short Comperand);
+__INTRIN_INLINE long _InterlockedCompareExchange(volatile long * const Destination, const long Exchange, const long Comperand);
+__INTRIN_INLINE void * _InterlockedCompareExchangePointer(void * volatile * const Destination, void * const Exchange, void * const Comperand);
+__INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long Value);
+__INTRIN_INLINE void * _InterlockedExchangePointer(void * volatile * const Target, void * const Value);
+__INTRIN_INLINE long _InterlockedExchangeAdd16(volatile short * const Addend, const short Value);
+__INTRIN_INLINE long _InterlockedExchangeAdd(volatile long * const Addend, const long Value);
+__INTRIN_INLINE char _InterlockedAnd8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedAnd16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedAnd(volatile long * const value, const long mask);
+__INTRIN_INLINE char _InterlockedOr8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedOr16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedOr(volatile long * const value, const long mask);
+__INTRIN_INLINE char _InterlockedXor8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedXor16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedXor(volatile long * const value, const long mask);
+__INTRIN_INLINE long _InterlockedDecrement(volatile long * const lpAddend);
+__INTRIN_INLINE long _InterlockedIncrement(volatile long * const lpAddend);
+__INTRIN_INLINE short _InterlockedDecrement16(volatile short * const lpAddend);
+__INTRIN_INLINE short _InterlockedIncrement16(volatile short * const lpAddend);
+#if defined(_M_AMD64)
+__INTRIN_INLINE long long _InterlockedExchange64(volatile long long * const Target, const long long Value);
+__INTRIN_INLINE long long _InterlockedExchangeAdd64(volatile long long * const Addend, const long long Value);
+__INTRIN_INLINE long long _InterlockedAnd64(volatile long long * const value, const long long mask);
+__INTRIN_INLINE long long _InterlockedOr64(volatile long long * const value, const long long mask);
+__INTRIN_INLINE long long _InterlockedXor64(volatile long long * const value, const long long mask);
+__INTRIN_INLINE long long _InterlockedDecrement64(volatile long long * const lpAddend);
+__INTRIN_INLINE long long _InterlockedIncrement64(volatile long long * const lpAddend);
+#endif
+
 __INTRIN_INLINE char _InterlockedCompareExchange8(volatile char * const Destination, const char Exchange, const char Comperand)
 {
 	return __sync_val_compare_and_swap(Destination, Comperand, Exchange);
@@ -287,7 +334,33 @@ __INTRIN_INLINE long long _InterlockedIncrement64(volatile long long * const lpA
 }
 #endif
 
-#else
+#else /* (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100 */
+
+__INTRIN_INLINE char _InterlockedCompareExchange8(volatile char * const Destination, const char Exchange, const char Comperand);
+__INTRIN_INLINE short _InterlockedCompareExchange16(volatile short * const Destination, const short Exchange, const short Comperand);
+__INTRIN_INLINE long _InterlockedCompareExchange(volatile long * const Destination, const long Exchange, const long Comperand);
+__INTRIN_INLINE void * _InterlockedCompareExchangePointer(void * volatile * const Destination, void * const Exchange, void * const Comperand);
+__INTRIN_INLINE long _InterlockedExchange(volatile long * const Target, const long Value);
+__INTRIN_INLINE void * _InterlockedExchangePointer(void * volatile * const Target, void * const Value);
+__INTRIN_INLINE long _InterlockedExchangeAdd16(volatile short * const Addend, const short Value);
+__INTRIN_INLINE long _InterlockedExchangeAdd(volatile long * const Addend, const long Value);
+__INTRIN_INLINE char _InterlockedAnd8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedAnd16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedAnd(volatile long * const value, const long mask);
+__INTRIN_INLINE char _InterlockedOr8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedOr16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedOr(volatile long * const value, const long mask);
+__INTRIN_INLINE char _InterlockedXor8(volatile char * const value, const char mask);
+__INTRIN_INLINE short _InterlockedXor16(volatile short * const value, const short mask);
+__INTRIN_INLINE long _InterlockedXor(volatile long * const value, const long mask);
+__INTRIN_INLINE long _InterlockedDecrement(volatile long * const lpAddend);
+__INTRIN_INLINE long _InterlockedIncrement(volatile long * const lpAddend);
+__INTRIN_INLINE short _InterlockedDecrement16(volatile short * const lpAddend);
+__INTRIN_INLINE short _InterlockedIncrement16(volatile short * const lpAddend);
+#if defined(_M_AMD64)
+__INTRIN_INLINE long long _InterlockedDecrement64(volatile long long * const lpAddend);
+__INTRIN_INLINE long long _InterlockedIncrement64(volatile long long * const lpAddend);
+#endif
 
 __INTRIN_INLINE char _InterlockedCompareExchange8(volatile char * const Destination, const char Exchange, const char Comperand)
 {
@@ -530,10 +603,11 @@ __INTRIN_INLINE long long _InterlockedIncrement64(volatile long long * const lpA
 }
 #endif
 
-#endif
+#endif /* (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100 */
 
 #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) > 40100 && defined(__x86_64__)
 
+__INTRIN_INLINE long long _InterlockedCompareExchange64(volatile long long * const Destination, const long long Exchange, const long long Comperand);
 __INTRIN_INLINE long long _InterlockedCompareExchange64(volatile long long * const Destination, const long long Exchange, const long long Comperand)
 {
 	return __sync_val_compare_and_swap(Destination, Comperand, Exchange);
@@ -541,6 +615,7 @@ __INTRIN_INLINE long long _InterlockedCompareExchange64(volatile long long * con
 
 #else
 
+__INTRIN_INLINE long long _InterlockedCompareExchange64(volatile long long * const Destination, const long long Exchange, const long long Comperand);
 __INTRIN_INLINE long long _InterlockedCompareExchange64(volatile long long * const Destination, const long long Exchange, const long long Comperand)
 {
 	long long retval = Comperand;
@@ -609,6 +684,19 @@ __INTRIN_INLINE unsigned char _interlockedbittestandset64(volatile long long * a
 #endif
 
 /*** String operations ***/
+
+__INTRIN_INLINE void __stosb(unsigned char * Dest, const unsigned char Data, size_t Count);
+__INTRIN_INLINE void __stosw(unsigned short * Dest, const unsigned short Data, size_t Count);
+__INTRIN_INLINE void __stosd(unsigned long * Dest, const unsigned long Data, size_t Count);
+__INTRIN_INLINE void __movsb(unsigned char * Destination, const unsigned char * Source, size_t Count);
+__INTRIN_INLINE void __movsw(unsigned short * Destination, const unsigned short * Source, size_t Count);
+__INTRIN_INLINE void __movsd(unsigned long * Destination, const unsigned long * Source, size_t Count);
+#ifdef _M_AMD64
+__INTRIN_INLINE void __stosq(unsigned __int64 * Dest, const unsigned __int64 Data, size_t Count);
+__INTRIN_INLINE void __movsq(unsigned long * Destination, const unsigned long * Source, size_t Count);
+#endif
+
+
 /* NOTE: we don't set a memory clobber in the __stosX functions because Visual C++ doesn't */
 __INTRIN_INLINE void __stosb(unsigned char * Dest, const unsigned char Data, size_t Count)
 {
@@ -695,8 +783,26 @@ __INTRIN_INLINE void __movsq(unsigned long * Destination, const unsigned long *
 #endif
 
 #if defined(_M_AMD64)
+
 /*** GS segment addressing ***/
 
+__INTRIN_INLINE void __writegsbyte(const unsigned long Offset, const unsigned char Data);
+__INTRIN_INLINE void __writegsword(const unsigned long Offset, const unsigned short Data);
+__INTRIN_INLINE void __writegsdword(const unsigned long Offset, const unsigned long Data);
+__INTRIN_INLINE void __writegsqword(const unsigned long Offset, const unsigned __int64 Data);
+__INTRIN_INLINE unsigned char __readgsbyte(const unsigned long Offset);
+__INTRIN_INLINE unsigned short __readgsword(const unsigned long Offset);
+__INTRIN_INLINE unsigned long __readgsdword(const unsigned long Offset);
+__INTRIN_INLINE unsigned __int64 __readgsqword(const unsigned long Offset);
+__INTRIN_INLINE void __incgsbyte(const unsigned long Offset);
+__INTRIN_INLINE void __incgsword(const unsigned long Offset);
+__INTRIN_INLINE void __incgsdword(const unsigned long Offset);
+__INTRIN_INLINE void __addgsbyte(const unsigned long Offset, const unsigned char Data);
+__INTRIN_INLINE void __addgsword(const unsigned long Offset, const unsigned short Data);
+__INTRIN_INLINE void __addgsdword(const unsigned long Offset, const unsigned int Data);
+__INTRIN_INLINE void __addgsqword(const unsigned long Offset, const unsigned __int64 Data);
+
+
 __INTRIN_INLINE void __writegsbyte(const unsigned long Offset, const unsigned char Data)
 {
 	__asm__ __volatile__("movb %b[Data], %%gs:%a[Offset]" : : [Offset] "ir" (Offset), [Data] "ir" (Data) : "memory");
@@ -780,8 +886,24 @@ __INTRIN_INLINE void __addgsqword(const unsigned long Offset, const unsigned __i
 	__asm__ __volatile__("addq %k[Data], %%gs:%a[Offset]" : : [Offset] "ir" (Offset), [Data] "ir" (Data) : "memory");
 }
 
-#else
+#else /* defined(_M_AMD64) */
+
 /*** FS segment addressing ***/
+
+__INTRIN_INLINE void __writefsbyte(const unsigned long Offset, const unsigned char Data);
+__INTRIN_INLINE void __writefsword(const unsigned long Offset, const unsigned short Data);
+__INTRIN_INLINE void __writefsdword(const unsigned long Offset, const unsigned long Data);
+__INTRIN_INLINE unsigned char __readfsbyte(const unsigned long Offset);
+__INTRIN_INLINE unsigned short __readfsword(const unsigned long Offset);
+__INTRIN_INLINE unsigned long __readfsdword(const unsigned long Offset);
+__INTRIN_INLINE void __incfsbyte(const unsigned long Offset);
+__INTRIN_INLINE void __incfsword(const unsigned long Offset);
+__INTRIN_INLINE void __incfsdword(const unsigned long Offset);
+__INTRIN_INLINE void __addfsbyte(const unsigned long Offset, const unsigned char Data);
+__INTRIN_INLINE void __addfsword(const unsigned long Offset, const unsigned short Data);
+__INTRIN_INLINE void __addfsdword(const unsigned long Offset, const unsigned int Data);
+
+
 __INTRIN_INLINE void __writefsbyte(const unsigned long Offset, const unsigned char Data)
 {
 	__asm__ __volatile__("movb %b[Data], %%fs:%a[Offset]" : : [Offset] "ir" (Offset), [Data] "iq" (Data) : "memory");
@@ -857,10 +979,39 @@ __INTRIN_INLINE void __addfsdword(const unsigned long Offset, const unsigned int
 	else
 		__asm__ __volatile__("addl %k[Data], %%fs:%a[Offset]" : : [Offset] "ir" (Offset), [Data] "iq" (Data) : "memory");
 }
-#endif
+
+#endif /* defined(_M_AMD64) */
 
 
 /*** Bit manipulation ***/
+
+__INTRIN_INLINE unsigned char _BitScanForward(unsigned long * const Index, const unsigned long Mask);
+__INTRIN_INLINE unsigned char _BitScanReverse(unsigned long * const Index, const unsigned long Mask);
+__INTRIN_INLINE unsigned char _bittest(const long * const a, const long b);
+#ifdef _M_AMD64
+__INTRIN_INLINE unsigned char _bittest64(const __int64 * const a, const __int64 b);
+#endif
+__INTRIN_INLINE unsigned char _bittestandcomplement(long * const a, const long b);
+__INTRIN_INLINE unsigned char _bittestandreset(long * const a, const long b);
+__INTRIN_INLINE unsigned char _bittestandset(long * const a, const long b);
+__INTRIN_INLINE unsigned char _rotl8(unsigned char value, unsigned char shift);
+__INTRIN_INLINE unsigned short _rotl16(unsigned short value, unsigned char shift);
+__INTRIN_INLINE unsigned int _rotl(unsigned int value, int shift);
+__INTRIN_INLINE unsigned int _rotr(unsigned int value, int shift);
+__INTRIN_INLINE unsigned char _rotr8(unsigned char value, unsigned char shift);
+__INTRIN_INLINE unsigned short _rotr16(unsigned short value, unsigned char shift);
+__INTRIN_INLINE unsigned long long __ll_lshift(const unsigned long long Mask, const int Bit);
+__INTRIN_INLINE long long __ll_rshift(const long long Mask, const int Bit);
+__INTRIN_INLINE unsigned long long __ull_rshift(const unsigned long long Mask, int Bit);
+__INTRIN_INLINE unsigned short _byteswap_ushort(unsigned short value);
+__INTRIN_INLINE unsigned long _byteswap_ulong(unsigned long value);
+#ifdef _M_AMD64
+__INTRIN_INLINE unsigned __int64 _byteswap_uint64(unsigned __int64 value);
+#else
+__INTRIN_INLINE unsigned __int64 _byteswap_uint64(unsigned __int64 value);
+#endif
+
+
 __INTRIN_INLINE unsigned char _BitScanForward(unsigned long * const Index, const unsigned long Mask)
 {
 	__asm__("bsfl %[Mask], %[Index]" : [Index] "=r" (*Index) : [Mask] "mr" (Mask));
@@ -1001,11 +1152,11 @@ __INTRIN_INLINE unsigned long long __ll_lshift(const unsigned long long Mask, co
 
 __INTRIN_INLINE long long __ll_rshift(const long long Mask, const int Bit)
 {
-	unsigned long long retval = Mask;
+	long long retval = Mask;
 
 	__asm__
 	(
-		"shldl %b[Bit], %%eax, %%edx; sarl %b[Bit], %%eax" :
+		"shrdl %b[Bit], %%edx, %%eax; sarl %b[Bit], %%edx" :
 		"+A" (retval) :
 		[Bit] "Nc" ((unsigned char)((unsigned long)Bit) & 0xFF)
 	);
@@ -1019,7 +1170,7 @@ __INTRIN_INLINE unsigned long long __ull_rshift(const unsigned long long Mask, i
 
 	__asm__
 	(
-		"shrdl %b[Bit], %%eax, %%edx; shrl %b[Bit], %%eax" :
+		"shrdl %b[Bit], %%edx, %%eax; shrl %b[Bit], %%edx" :
 		"+A" (retval) :
 		[Bit] "Nc" ((unsigned char)((unsigned long)Bit) & 0xFF)
 	);
@@ -1052,7 +1203,7 @@ __INTRIN_INLINE unsigned __int64 _byteswap_uint64(unsigned __int64 value)
 __INTRIN_INLINE unsigned __int64 _byteswap_uint64(unsigned __int64 value)
 {
 	union {
-		__int64 int64part;
+		unsigned __int64 int64part;
 		struct {
 			unsigned long lowpart;
 			unsigned long hipart;
@@ -1067,6 +1218,15 @@ __INTRIN_INLINE unsigned __int64 _byteswap_uint64(unsigned __int64 value)
 #endif
 
 /*** 64-bit math ***/
+
+__INTRIN_INLINE long long __emul(const int a, const int b);
+__INTRIN_INLINE unsigned long long __emulu(const unsigned int a, const unsigned int b);
+#ifdef _M_AMD64
+__INTRIN_INLINE __int64 __mulh(__int64 a, __int64 b);
+__INTRIN_INLINE unsigned __int64 __umulh(unsigned __int64 a, unsigned __int64 b);
+#endif
+
+
 __INTRIN_INLINE long long __emul(const int a, const int b)
 {
 	long long retval;
@@ -1100,6 +1260,27 @@ __INTRIN_INLINE unsigned __int64 __umulh(unsigned __int64 a, unsigned __int64 b)
 #endif
 
 /*** Port I/O ***/
+
+__INTRIN_INLINE unsigned char __inbyte(const unsigned short Port);
+__INTRIN_INLINE unsigned short __inword(const unsigned short Port);
+__INTRIN_INLINE unsigned long __indword(const unsigned short Port);
+__INTRIN_INLINE void __inbytestring(unsigned short Port, unsigned char * Buffer, unsigned long Count);
+__INTRIN_INLINE void __inwordstring(unsigned short Port, unsigned short * Buffer, unsigned long Count);
+__INTRIN_INLINE void __indwordstring(unsigned short Port, unsigned long * Buffer, unsigned long Count);
+__INTRIN_INLINE void __outbyte(unsigned short const Port, const unsigned char Data);
+__INTRIN_INLINE void __outword(unsigned short const Port, const unsigned short Data);
+__INTRIN_INLINE void __outdword(unsigned short const Port, const unsigned long Data);
+__INTRIN_INLINE void __outbytestring(unsigned short const Port, const unsigned char * const Buffer, const unsigned long Count);
+__INTRIN_INLINE void __outwordstring(unsigned short const Port, const unsigned short * const Buffer, const unsigned long Count);
+__INTRIN_INLINE void __outdwordstring(unsigned short const Port, const unsigned long * const Buffer, const unsigned long Count);
+__INTRIN_INLINE int _inp(unsigned short Port);
+__INTRIN_INLINE unsigned short _inpw(unsigned short Port);
+__INTRIN_INLINE unsigned long _inpd(unsigned short Port);
+__INTRIN_INLINE int _outp(unsigned short Port, int databyte);
+__INTRIN_INLINE unsigned short _outpw(unsigned short Port, unsigned short dataword);
+__INTRIN_INLINE unsigned long _outpd(unsigned short Port, unsigned long dataword);
+
+
 __INTRIN_INLINE unsigned char __inbyte(const unsigned short Port)
 {
 	unsigned char byte;
@@ -1201,7 +1382,7 @@ __INTRIN_INLINE unsigned long _inpd(unsigned short Port)
 
 __INTRIN_INLINE int _outp(unsigned short Port, int databyte)
 {
-	__outbyte(Port, databyte);
+	__outbyte(Port, (unsigned char)databyte);
 	return databyte;
 }
 
@@ -1219,6 +1400,13 @@ __INTRIN_INLINE unsigned long _outpd(unsigned short Port, unsigned long dataword
 
 
 /*** System information ***/
+
+__INTRIN_INLINE void __cpuid(int CPUInfo [], const int InfoType);
+__INTRIN_INLINE unsigned long long __rdtsc(void);
+__INTRIN_INLINE void __writeeflags(uintptr_t Value);
+__INTRIN_INLINE uintptr_t __readeflags(void);
+
+
 __INTRIN_INLINE void __cpuid(int CPUInfo[], const int InfoType)
 {
 	__asm__ __volatile__("cpuid" : "=a" (CPUInfo[0]), "=b" (CPUInfo[1]), "=c" (CPUInfo[2]), "=d" (CPUInfo[3]) : "a" (InfoType));
@@ -1250,9 +1438,16 @@ __INTRIN_INLINE uintptr_t __readeflags(void)
 }
 
 /*** Interrupts ***/
+
+__INTRIN_INLINE void __int2c(void);
+__INTRIN_INLINE void _disable(void);
+__INTRIN_INLINE void _enable(void);
+__INTRIN_INLINE void __halt(void);
+
 #ifdef __clang__
 #define __debugbreak() __asm__("int $3")
 #else
+__INTRIN_INLINE void __debugbreak(void);
 __INTRIN_INLINE void __debugbreak(void)
 {
 	__asm__("int $3");
@@ -1281,7 +1476,34 @@ __INTRIN_INLINE void __halt(void)
 
 /*** Protected memory management ***/
 
+__INTRIN_INLINE void __invlpg(void * const Address);
 #ifdef _M_AMD64
+__INTRIN_INLINE void __writecr0(const unsigned __int64 Data);
+__INTRIN_INLINE void __writecr3(const unsigned __int64 Data);
+__INTRIN_INLINE void __writecr4(const unsigned __int64 Data);
+__INTRIN_INLINE void __writecr8(const unsigned __int64 Data);
+__INTRIN_INLINE unsigned __int64 __readcr0(void);
+__INTRIN_INLINE unsigned __int64 __readcr2(void);
+__INTRIN_INLINE unsigned __int64 __readcr3(void);
+__INTRIN_INLINE unsigned __int64 __readcr4(void);
+__INTRIN_INLINE unsigned __int64 __readcr8(void);
+__INTRIN_INLINE unsigned __int64 __readdr(unsigned int reg);
+__INTRIN_INLINE void __writedr(unsigned reg, unsigned __int64 value);
+#else /* _M_AMD64 */
+__INTRIN_INLINE void __writecr0(const unsigned int Data);
+__INTRIN_INLINE void __writecr3(const unsigned int Data);
+__INTRIN_INLINE void __writecr4(const unsigned int Data);
+__INTRIN_INLINE unsigned long __readcr0(void);
+__INTRIN_INLINE unsigned long __readcr2(void);
+__INTRIN_INLINE unsigned long __readcr3(void);
+__INTRIN_INLINE unsigned long __readcr4(void);
+__INTRIN_INLINE unsigned int __readdr(unsigned int reg);
+__INTRIN_INLINE void __writedr(unsigned reg, unsigned int value);
+#endif /* _M_AMD64 */
+
+
+#ifdef _M_AMD64
+
 __INTRIN_INLINE void __writecr0(const unsigned __int64 Data)
 {
 	__asm__("mov %[Data], %%cr0" : : [Data] "r" (Data) : "memory");
@@ -1336,7 +1558,9 @@ __INTRIN_INLINE unsigned __int64 __readcr8(void)
 	__asm__ __volatile__("movq %%cr8, %q[value]" : [value] "=r" (value));
 	return value;
 }
-#else
+
+#else /* _M_AMD64 */
+
 __INTRIN_INLINE void __writecr0(const unsigned int Data)
 {
 	__asm__("mov %[Data], %%cr0" : : [Data] "r" (Data) : "memory");
@@ -1379,9 +1603,11 @@ __INTRIN_INLINE unsigned long __readcr4(void)
 	__asm__ __volatile__("mov %%cr4, %[value]" : [value] "=r" (value));
 	return value;
 }
-#endif
+
+#endif /* _M_AMD64 */
 
 #ifdef _M_AMD64
+
 __INTRIN_INLINE unsigned __int64 __readdr(unsigned int reg)
 {
 	unsigned __int64 value;
@@ -1445,7 +1671,9 @@ __INTRIN_INLINE void __writedr(unsigned reg, unsigned __int64 value)
 			break;
 	}
 }
-#else
+
+#else /* _M_AMD64 */
+
 __INTRIN_INLINE unsigned int __readdr(unsigned int reg)
 {
 	unsigned int value;
@@ -1509,7 +1737,8 @@ __INTRIN_INLINE void __writedr(unsigned reg, unsigned int value)
 			break;
 	}
 }
-#endif
+
+#endif /* _M_AMD64 */
 
 __INTRIN_INLINE void __invlpg(void * const Address)
 {
@@ -1518,6 +1747,16 @@ __INTRIN_INLINE void __invlpg(void * const Address)
 
 
 /*** System operations ***/
+
+__INTRIN_INLINE unsigned long long __readmsr(const int reg);
+__INTRIN_INLINE void __writemsr(const unsigned long Register, const unsigned long long Value);
+__INTRIN_INLINE unsigned long long __readpmc(const int counter);
+__INTRIN_INLINE unsigned long __segmentlimit(const unsigned long a);
+__INTRIN_INLINE void __wbinvd(void);
+__INTRIN_INLINE void __lidt(void *Source);
+__INTRIN_INLINE void __sidt(void *Destination);
+
+
 __INTRIN_INLINE unsigned long long __readmsr(const int reg)
 {
 #ifdef _M_AMD64
@@ -1572,6 +1811,9 @@ __INTRIN_INLINE void __sidt(void *Destination)
 
 /*** Misc operations ***/
 
+__INTRIN_INLINE void _mm_pause(void);
+__INTRIN_INLINE void __nop(void);
+
 __INTRIN_INLINE void _mm_pause(void)
 {
 	__asm__ __volatile__("pause" : : : "memory");