1 /* CpuArch.h -- CPU specific code
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2 2010-10-26: Igor Pavlov : Public domain */
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12 MY_CPU_LE means that CPU is LITTLE ENDIAN.
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13 If MY_CPU_LE is not defined, we don't know about that property of platform (it can be LITTLE ENDIAN).
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15 MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
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16 If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform.
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19 #if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__)
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20 #define MY_CPU_AMD64
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23 #if defined(MY_CPU_AMD64) || defined(_M_IA64)
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24 #define MY_CPU_64BIT
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27 #if defined(_M_IX86) || defined(__i386__)
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31 #if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
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32 #define MY_CPU_X86_OR_AMD64
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35 #if defined(MY_CPU_X86) || defined(_M_ARM)
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36 #define MY_CPU_32BIT
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39 #if defined(_WIN32) && defined(_M_ARM)
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40 #define MY_CPU_ARM_LE
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43 #if defined(_WIN32) && defined(_M_IA64)
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44 #define MY_CPU_IA64_LE
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47 #if defined(MY_CPU_X86_OR_AMD64)
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48 #define MY_CPU_LE_UNALIGN
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51 #if defined(MY_CPU_X86_OR_AMD64) || defined(MY_CPU_ARM_LE) || defined(MY_CPU_IA64_LE) || defined(__ARMEL__) || defined(__MIPSEL__) || defined(__LITTLE_ENDIAN__)
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55 #if defined(__BIG_ENDIAN__)
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59 #if defined(MY_CPU_LE) && defined(MY_CPU_BE)
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60 Stop_Compiling_Bad_Endian
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63 #ifdef MY_CPU_LE_UNALIGN
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65 #define GetUi16(p) (*(const UInt16 *)(p))
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66 #define GetUi32(p) (*(const UInt32 *)(p))
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67 #define GetUi64(p) (*(const UInt64 *)(p))
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68 #define SetUi16(p, d) *(UInt16 *)(p) = (d);
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69 #define SetUi32(p, d) *(UInt32 *)(p) = (d);
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70 #define SetUi64(p, d) *(UInt64 *)(p) = (d);
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74 #define GetUi16(p) (((const Byte *)(p))[0] | ((UInt16)((const Byte *)(p))[1] << 8))
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76 #define GetUi32(p) ( \
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77 ((const Byte *)(p))[0] | \
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78 ((UInt32)((const Byte *)(p))[1] << 8) | \
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79 ((UInt32)((const Byte *)(p))[2] << 16) | \
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80 ((UInt32)((const Byte *)(p))[3] << 24))
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82 #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
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84 #define SetUi16(p, d) { UInt32 _x_ = (d); \
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85 ((Byte *)(p))[0] = (Byte)_x_; \
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86 ((Byte *)(p))[1] = (Byte)(_x_ >> 8); }
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88 #define SetUi32(p, d) { UInt32 _x_ = (d); \
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89 ((Byte *)(p))[0] = (Byte)_x_; \
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90 ((Byte *)(p))[1] = (Byte)(_x_ >> 8); \
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91 ((Byte *)(p))[2] = (Byte)(_x_ >> 16); \
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92 ((Byte *)(p))[3] = (Byte)(_x_ >> 24); }
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94 #define SetUi64(p, d) { UInt64 _x64_ = (d); \
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95 SetUi32(p, (UInt32)_x64_); \
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96 SetUi32(((Byte *)(p)) + 4, (UInt32)(_x64_ >> 32)); }
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100 #if defined(MY_CPU_LE_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300)
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102 #pragma intrinsic(_byteswap_ulong)
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103 #pragma intrinsic(_byteswap_uint64)
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104 #define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p))
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105 #define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p))
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109 #define GetBe32(p) ( \
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110 ((UInt32)((const Byte *)(p))[0] << 24) | \
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111 ((UInt32)((const Byte *)(p))[1] << 16) | \
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112 ((UInt32)((const Byte *)(p))[2] << 8) | \
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113 ((const Byte *)(p))[3] )
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115 #define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
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119 #define GetBe16(p) (((UInt16)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])
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122 #ifdef MY_CPU_X86_OR_AMD64
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141 Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
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142 int x86cpuid_GetFirm(const Cx86cpuid *p);
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144 #define x86cpuid_GetFamily(p) (((p)->ver >> 8) & 0xFF00F)
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145 #define x86cpuid_GetModel(p) (((p)->ver >> 4) & 0xF00F)
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146 #define x86cpuid_GetStepping(p) ((p)->ver & 0xF)
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148 Bool CPU_Is_InOrder();
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149 Bool CPU_Is_Aes_Supported();
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