repo sync | baa3858 | 2013-07-26 17:53:31 -0700 | [diff] [blame] | 1 | /* CpuArch.h -- CPU specific code
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| 2 | 2010-10-26: Igor Pavlov : Public domain */
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| 3 |
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| 4 | #ifndef __CPU_ARCH_H
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| 5 | #define __CPU_ARCH_H
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| 6 |
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| 7 | #include "Types.h"
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| 8 |
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| 9 | EXTERN_C_BEGIN
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| 10 |
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| 11 | /*
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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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| 14 |
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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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| 17 | */
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| 18 |
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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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| 21 | #endif
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| 22 |
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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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| 25 | #endif
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| 26 |
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| 27 | #if defined(_M_IX86) || defined(__i386__)
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| 28 | #define MY_CPU_X86
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| 29 | #endif
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| 30 |
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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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| 33 | #endif
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| 34 |
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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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| 37 | #endif
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| 38 |
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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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| 41 | #endif
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| 42 |
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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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| 45 | #endif
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| 46 |
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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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| 49 | #endif
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| 50 |
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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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| 52 | #define MY_CPU_LE
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| 53 | #endif
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| 54 |
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| 55 | #if defined(__BIG_ENDIAN__)
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| 56 | #define MY_CPU_BE
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| 57 | #endif
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| 58 |
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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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| 61 | #endif
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| 62 |
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| 63 | #ifdef MY_CPU_LE_UNALIGN
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| 64 |
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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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| 71 |
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| 72 | #else
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| 73 |
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| 74 | #define GetUi16(p) (((const Byte *)(p))[0] | ((UInt16)((const Byte *)(p))[1] << 8))
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| 75 |
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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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| 81 |
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| 82 | #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
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| 83 |
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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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| 87 |
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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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| 93 |
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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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| 97 |
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| 98 | #endif
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| 99 |
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| 100 | #if defined(MY_CPU_LE_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300)
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| 101 |
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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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| 106 |
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| 107 | #else
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| 108 |
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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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| 114 |
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| 115 | #define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
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| 116 |
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| 117 | #endif
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| 118 |
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| 119 | #define GetBe16(p) (((UInt16)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])
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| 120 |
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| 121 |
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| 122 | #ifdef MY_CPU_X86_OR_AMD64
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| 123 |
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| 124 | typedef struct
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| 125 | {
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| 126 | UInt32 maxFunc;
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| 127 | UInt32 vendor[3];
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| 128 | UInt32 ver;
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| 129 | UInt32 b;
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| 130 | UInt32 c;
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| 131 | UInt32 d;
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| 132 | } Cx86cpuid;
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| 133 |
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| 134 | enum
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| 135 | {
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| 136 | CPU_FIRM_INTEL,
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| 137 | CPU_FIRM_AMD,
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| 138 | CPU_FIRM_VIA
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| 139 | };
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| 140 |
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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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| 143 |
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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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| 147 |
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| 148 | Bool CPU_Is_InOrder();
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| 149 | Bool CPU_Is_Aes_Supported();
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| 150 |
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| 151 | #endif
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| 152 |
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| 153 | EXTERN_C_END
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| 154 |
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| 155 | #endif
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