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824b509d2e
The GCC model for extended instructions like these is that you compile with -msse3 etc. These affect code generation for whole compilation units, so the idea is that you have a separate .c file for each instruction set class and then indirect to the desired one at runtime. Without e.g. -msse4.1, the GCC built-ins used by <foointrin.h> are not available. However, in our specific case of compiling with -msse2 and wanting to use SSE3.1 code, enough built-ins are available that we only need to provide a little hack for pshufb. Upgrading this to also use SSE4.1 instructions doesn't appear feasible without a lot of undesirable duplication of GCC built-in functions and headers, so we'd probably have to move to the GCC model of separate source files for that. git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6014 8ced0084-cf51-0410-be5f-012b33b47a6e
155 lines
4.2 KiB
C++
155 lines
4.2 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _COMMONFUNCS_H_
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#define _COMMONFUNCS_H_
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#ifdef _WIN32
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#define SLEEP(x) Sleep(x)
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#else
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#define SLEEP(x) usleep(x*1000)
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#endif
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template <bool> struct CompileTimeAssert;
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template<> struct CompileTimeAssert<true> {};
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#if defined __GNUC__ && !defined __SSSE3__
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#include <emmintrin.h>
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static __inline __m128i __attribute__((__always_inline__))
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_mm_shuffle_epi8(__m128i a, __m128i mask)
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{
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__m128i result;
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__asm__("pshufb %1, %0"
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: "=x" (result)
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: "xm" (mask), "0" (a));
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return result;
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}
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#endif
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#ifndef _WIN32
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#include <errno.h>
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#ifdef __linux__
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#include <byteswap.h>
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#else
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char * strndup(char const *s, size_t n);
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size_t strnlen(const char *s, size_t n);
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#endif
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// go to debugger mode
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#ifdef GEKKO
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#define Crash()
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#else
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#define Crash() {asm ("int $3");}
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#endif
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#define ARRAYSIZE(A) (sizeof(A)/sizeof((A)[0]))
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inline u32 _rotl(u32 x, int shift) {
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shift &= 31;
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if (!shift) return x;
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return (x << shift) | (x >> (32 - shift));
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}
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inline u64 _rotl64(u64 x, unsigned int shift){
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unsigned int n = shift % 64;
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return (x << n) | (x >> (64 - n));
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}
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inline u32 _rotr(u32 x, int shift) {
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shift &= 31;
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if (!shift) return x;
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return (x >> shift) | (x << (32 - shift));
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}
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inline u64 _rotr64(u64 x, unsigned int shift){
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unsigned int n = shift % 64;
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return (x >> n) | (x << (64 - n));
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}
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#else // WIN32
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// Function Cross-Compatibility
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#define unlink _unlink
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#define snprintf _snprintf
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#define vscprintf _vscprintf
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char* strndup (char const *s, size_t n);
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// 64 bit offsets for windows
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#define fseek _fseeki64
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#define ftell _ftelli64
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#define atoll _atoi64
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#define stat64 _stat64
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#if _M_IX86
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#define Crash() {__asm int 3}
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#else
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extern "C" {
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__declspec(dllimport) void __stdcall DebugBreak(void);
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}
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#define Crash() {DebugBreak();}
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#endif // M_IX86
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#endif // WIN32 ndef
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// Dolphin's min and max functions
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#undef min
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#undef max
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template<class T>
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inline T min(const T& a, const T& b) {return a > b ? b : a;}
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template<class T>
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inline T max(const T& a, const T& b) {return a > b ? a : b;}
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// Generic function to get last error message.
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// Call directly after the command or use the error num.
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// This function might change the error code.
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// Defined in Misc.cpp.
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const char* GetLastErrorMsg();
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namespace Common
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{
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inline u8 swap8(u8 _data) {return _data;}
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#ifdef _WIN32
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inline u16 swap16(u16 _data) {return _byteswap_ushort(_data);}
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inline u32 swap32(u32 _data) {return _byteswap_ulong (_data);}
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inline u64 swap64(u64 _data) {return _byteswap_uint64(_data);}
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#elif __linux__
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inline u16 swap16(u16 _data) {return bswap_16(_data);}
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inline u32 swap32(u32 _data) {return bswap_32(_data);}
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inline u64 swap64(u64 _data) {return bswap_64(_data);}
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#elif __APPLE__
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inline __attribute__((always_inline)) u16 swap16(u16 _data)
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{return (_data >> 8) | (_data << 8);}
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inline __attribute__((always_inline)) u32 swap32(u32 _data)
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{return __builtin_bswap32(_data);}
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inline __attribute__((always_inline)) u64 swap64(u64 _data)
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{return __builtin_bswap64(_data);}
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#else
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// Slow generic implementation.
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inline u16 swap16(u16 data) {return (data >> 8) | (data << 8);}
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inline u32 swap32(u32 data) {return (swap16(data) << 16) | swap16(data >> 16);}
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inline u64 swap64(u64 data) {return ((u64)swap32(data) << 32) | swap32(data >> 32);}
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#endif
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inline u16 swap16(const u8* _pData) {return swap16(*(const u16*)_pData);}
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inline u32 swap32(const u8* _pData) {return swap32(*(const u32*)_pData);}
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inline u64 swap64(const u8* _pData) {return swap64(*(const u64*)_pData);}
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} // Namespace Common
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#endif // _COMMONFUNCS_H_
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