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264 lines
6.7 KiB
264 lines
6.7 KiB
15 years ago
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#ifndef CRYPTOPP_CPU_H
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#define CRYPTOPP_CPU_H
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define CRYPTOPP_X86_ASM_AVAILABLE
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#define CRYPTOPP_BOOL_X64 1
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#define CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE 1
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#define NAMESPACE_END
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#else
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#include "config.h"
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#ifdef CRYPTOPP_MSVC6PP_OR_LATER
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#include <emmintrin.h>
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#endif
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NAMESPACE_BEGIN(CryptoPP)
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#if defined(CRYPTOPP_X86_ASM_AVAILABLE) || (_MSC_VER >= 1400 && CRYPTOPP_BOOL_X64)
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#define CRYPTOPP_CPUID_AVAILABLE
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// these should not be used directly
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extern CRYPTOPP_DLL bool g_x86DetectionDone;
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extern CRYPTOPP_DLL bool g_hasSSE2;
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extern CRYPTOPP_DLL bool g_hasISSE;
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extern CRYPTOPP_DLL bool g_hasMMX;
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extern CRYPTOPP_DLL bool g_hasSSSE3;
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extern CRYPTOPP_DLL bool g_isP4;
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extern CRYPTOPP_DLL word32 g_cacheLineSize;
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CRYPTOPP_DLL void CRYPTOPP_API DetectX86Features();
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CRYPTOPP_DLL bool CRYPTOPP_API CpuId(word32 input, word32 *output);
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#if CRYPTOPP_BOOL_X64
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inline bool HasSSE2() {return true;}
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inline bool HasISSE() {return true;}
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inline bool HasMMX() {return true;}
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#else
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inline bool HasSSE2()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSE2;
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}
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inline bool HasISSE()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasISSE;
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}
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inline bool HasMMX()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasMMX;
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}
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#endif
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inline bool HasSSSE3()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_hasSSSE3;
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}
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inline bool IsP4()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_isP4;
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}
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inline int GetCacheLineSize()
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{
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if (!g_x86DetectionDone)
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DetectX86Features();
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return g_cacheLineSize;
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}
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#else
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inline int GetCacheLineSize()
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{
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return CRYPTOPP_L1_CACHE_LINE_SIZE;
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}
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inline bool HasSSSE3() {return false;}
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inline bool IsP4() {return false;}
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// assume MMX and SSE2 if intrinsics are enabled
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#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_X64
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inline bool HasSSE2() {return true;}
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inline bool HasISSE() {return true;}
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inline bool HasMMX() {return true;}
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#else
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inline bool HasSSE2() {return false;}
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inline bool HasISSE() {return false;}
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inline bool HasMMX() {return false;}
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#endif
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#endif // #ifdef CRYPTOPP_X86_ASM_AVAILABLE || _MSC_VER >= 1400
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#endif
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define AS1(x) x*newline*
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#define AS2(x, y) x, y*newline*
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#define AS3(x, y, z) x, y, z*newline*
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#define ASS(x, y, a, b, c, d) x, y, a*64+b*16+c*4+d*newline*
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#define ASL(x) label##x:*newline*
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#define ASJ(x, y, z) x label##y*newline*
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#define ASC(x, y) x label##y*newline*
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#define AS_HEX(y) 0##y##h
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#elif defined(__GNUC__)
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// define these in two steps to allow arguments to be expanded
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#define GNU_AS1(x) #x ";"
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#define GNU_AS2(x, y) #x ", " #y ";"
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#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";"
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#define GNU_ASL(x) "\n" #x ":"
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#define GNU_ASJ(x, y, z) #x " " #y #z ";"
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#define AS1(x) GNU_AS1(x)
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#define AS2(x, y) GNU_AS2(x, y)
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#define AS3(x, y, z) GNU_AS3(x, y, z)
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#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"
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#define ASL(x) GNU_ASL(x)
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#define ASJ(x, y, z) GNU_ASJ(x, y, z)
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#define ASC(x, y) #x " " #y ";"
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#define CRYPTOPP_NAKED
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#define AS_HEX(y) 0x##y
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#else
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#define AS1(x) __asm {x}
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#define AS2(x, y) __asm {x, y}
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#define AS3(x, y, z) __asm {x, y, z}
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#define ASS(x, y, a, b, c, d) __asm {x, y, _MM_SHUFFLE(a, b, c, d)}
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#define ASL(x) __asm {label##x:}
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#define ASJ(x, y, z) __asm {x label##y}
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#define ASC(x, y) __asm {x label##y}
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#define CRYPTOPP_NAKED __declspec(naked)
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#define AS_HEX(y) 0x##y
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#endif
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#define IF0(y)
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#define IF1(y) y
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define ASM_MOD(x, y) ((x) MOD (y))
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#define XMMWORD_PTR XMMWORD PTR
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#else
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// GNU assembler doesn't seem to have mod operator
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#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))
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// GAS 2.15 doesn't support XMMWORD PTR. it seems necessary only for MASM
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#define XMMWORD_PTR
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#endif
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#if CRYPTOPP_BOOL_X86
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#define AS_REG_1 ecx
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#define AS_REG_2 edx
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#define AS_REG_3 esi
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#define AS_REG_4 edi
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#define AS_REG_5 eax
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#define AS_REG_6 ebx
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#define AS_REG_7 ebp
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#define AS_REG_1d ecx
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#define AS_REG_2d edx
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#define AS_REG_3d esi
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#define AS_REG_4d edi
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#define AS_REG_5d eax
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#define AS_REG_6d ebx
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#define AS_REG_7d ebp
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#define WORD_SZ 4
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#define WORD_REG(x) e##x
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#define WORD_PTR DWORD PTR
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#define AS_PUSH_IF86(x) AS1(push e##x)
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#define AS_POP_IF86(x) AS1(pop e##x)
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#define AS_JCXZ jecxz
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#elif CRYPTOPP_BOOL_X64
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#ifdef CRYPTOPP_GENERATE_X64_MASM
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#define AS_REG_1 rcx
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#define AS_REG_2 rdx
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#define AS_REG_3 r8
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#define AS_REG_4 r9
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#define AS_REG_5 rax
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#define AS_REG_6 r10
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#define AS_REG_7 r11
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#define AS_REG_1d ecx
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#define AS_REG_2d edx
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#define AS_REG_3d r8d
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#define AS_REG_4d r9d
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#define AS_REG_5d eax
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#define AS_REG_6d r10d
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#define AS_REG_7d r11d
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#else
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#define AS_REG_1 rdi
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#define AS_REG_2 rsi
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#define AS_REG_3 rdx
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#define AS_REG_4 rcx
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#define AS_REG_5 r8
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#define AS_REG_6 r9
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#define AS_REG_7 r10
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#define AS_REG_1d edi
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#define AS_REG_2d esi
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#define AS_REG_3d edx
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#define AS_REG_4d ecx
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#define AS_REG_5d r8d
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#define AS_REG_6d r9d
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#define AS_REG_7d r10d
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#endif
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#define WORD_SZ 8
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#define WORD_REG(x) r##x
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#define WORD_PTR QWORD PTR
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#define AS_PUSH_IF86(x)
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#define AS_POP_IF86(x)
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#define AS_JCXZ jrcxz
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#endif
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// helper macro for stream cipher output
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#define AS_XMM_OUTPUT4(labelPrefix, inputPtr, outputPtr, x0, x1, x2, x3, t, p0, p1, p2, p3, increment)\
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AS2( test inputPtr, inputPtr)\
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ASC( jz, labelPrefix##3)\
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AS2( test inputPtr, 15)\
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ASC( jnz, labelPrefix##7)\
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AS2( pxor xmm##x0, [inputPtr+p0*16])\
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AS2( pxor xmm##x1, [inputPtr+p1*16])\
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AS2( pxor xmm##x2, [inputPtr+p2*16])\
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AS2( pxor xmm##x3, [inputPtr+p3*16])\
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AS2( add inputPtr, increment*16)\
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ASC( jmp, labelPrefix##3)\
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ASL(labelPrefix##7)\
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AS2( movdqu xmm##t, [inputPtr+p0*16])\
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AS2( pxor xmm##x0, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p1*16])\
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AS2( pxor xmm##x1, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p2*16])\
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AS2( pxor xmm##x2, xmm##t)\
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AS2( movdqu xmm##t, [inputPtr+p3*16])\
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AS2( pxor xmm##x3, xmm##t)\
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AS2( add inputPtr, increment*16)\
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ASL(labelPrefix##3)\
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AS2( test outputPtr, 15)\
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ASC( jnz, labelPrefix##8)\
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AS2( movdqa [outputPtr+p0*16], xmm##x0)\
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AS2( movdqa [outputPtr+p1*16], xmm##x1)\
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AS2( movdqa [outputPtr+p2*16], xmm##x2)\
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AS2( movdqa [outputPtr+p3*16], xmm##x3)\
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ASC( jmp, labelPrefix##9)\
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ASL(labelPrefix##8)\
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AS2( movdqu [outputPtr+p0*16], xmm##x0)\
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AS2( movdqu [outputPtr+p1*16], xmm##x1)\
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AS2( movdqu [outputPtr+p2*16], xmm##x2)\
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AS2( movdqu [outputPtr+p3*16], xmm##x3)\
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ASL(labelPrefix##9)\
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AS2( add outputPtr, increment*16)
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NAMESPACE_END
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#endif
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