1 /* CpuArch.h -- CPU specific code 2 2013-11-12: Igor Pavlov : Public domain */ 3 4 #ifndef __CPU_ARCH_H 5 #define __CPU_ARCH_H 6 7 #include "7zTypes.h" 8 9 EXTERN_C_BEGIN 10 11 /* 12 MY_CPU_LE means that CPU is LITTLE ENDIAN. 13 If MY_CPU_LE is not defined, we don't know about that property of platform (it can be LITTLE ENDIAN). 14 15 MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses. 16 If MY_CPU_LE_UNALIGN is not defined, we don't know about these properties of platform. 17 */ 18 19 #if defined(_M_X64) || defined(_M_AMD64) || defined(__x86_64__) 20 #define MY_CPU_AMD64 21 #endif 22 23 #if defined(MY_CPU_AMD64) || defined(_M_IA64) 24 #define MY_CPU_64BIT 25 #endif 26 27 #if defined(_M_IX86) || defined(__i386__) 28 #define MY_CPU_X86 29 #endif 30 31 #if defined(MY_CPU_X86) || defined(MY_CPU_AMD64) 32 #define MY_CPU_X86_OR_AMD64 33 #endif 34 35 #if defined(MY_CPU_X86) || defined(_M_ARM) 36 #define MY_CPU_32BIT 37 #endif 38 39 #if defined(_WIN32) && defined(_M_ARM) 40 #define MY_CPU_ARM_LE 41 #endif 42 43 #if defined(_WIN32) && defined(_M_IA64) 44 #define MY_CPU_IA64_LE 45 #endif 46 47 #if defined(MY_CPU_X86_OR_AMD64) 48 #define MY_CPU_LE_UNALIGN 49 #endif 50 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__) 52 #define MY_CPU_LE 53 #endif 54 55 #if defined(__BIG_ENDIAN__) || defined(__m68k__) || defined(__ARMEB__) || defined(__MIPSEB__) 56 #define MY_CPU_BE 57 #endif 58 59 #if defined(MY_CPU_LE) && defined(MY_CPU_BE) 60 Stop_Compiling_Bad_Endian 61 #endif 62 63 #ifdef MY_CPU_LE_UNALIGN 64 65 #define GetUi16(p) (*(const UInt16 *)(const void *)(p)) 66 #define GetUi32(p) (*(const UInt32 *)(const void *)(p)) 67 #define GetUi64(p) (*(const UInt64 *)(const void *)(p)) 68 #define SetUi16(p, d) *(UInt16 *)(p) = (d); 69 #define SetUi32(p, d) *(UInt32 *)(p) = (d); 70 #define SetUi64(p, d) *(UInt64 *)(p) = (d); 71 72 #else 73 74 #define GetUi16(p) (((const Byte *)(p))[0] | ((UInt16)((const Byte *)(p))[1] << 8)) 75 76 #define GetUi32(p) ( \ 77 ((const Byte *)(p))[0] | \ 78 ((UInt32)((const Byte *)(p))[1] << 8) | \ 79 ((UInt32)((const Byte *)(p))[2] << 16) | \ 80 ((UInt32)((const Byte *)(p))[3] << 24)) 81 82 #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32)) 83 84 #define SetUi16(p, d) { UInt32 _x_ = (d); \ 85 ((Byte *)(p))[0] = (Byte)_x_; \ 86 ((Byte *)(p))[1] = (Byte)(_x_ >> 8); } 87 88 #define SetUi32(p, d) { UInt32 _x_ = (d); \ 89 ((Byte *)(p))[0] = (Byte)_x_; \ 90 ((Byte *)(p))[1] = (Byte)(_x_ >> 8); \ 91 ((Byte *)(p))[2] = (Byte)(_x_ >> 16); \ 92 ((Byte *)(p))[3] = (Byte)(_x_ >> 24); } 93 94 #define SetUi64(p, d) { UInt64 _x64_ = (d); \ 95 SetUi32(p, (UInt32)_x64_); \ 96 SetUi32(((Byte *)(p)) + 4, (UInt32)(_x64_ >> 32)); } 97 98 #endif 99 100 #if defined(MY_CPU_LE_UNALIGN) && defined(_WIN64) && (_MSC_VER >= 1300) 101 102 #include <stdlib.h> 103 104 #pragma intrinsic(_byteswap_ulong) 105 #pragma intrinsic(_byteswap_uint64) 106 #define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p)) 107 #define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p)) 108 109 #else 110 111 #define GetBe32(p) ( \ 112 ((UInt32)((const Byte *)(p))[0] << 24) | \ 113 ((UInt32)((const Byte *)(p))[1] << 16) | \ 114 ((UInt32)((const Byte *)(p))[2] << 8) | \ 115 ((const Byte *)(p))[3] ) 116 117 #define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4)) 118 119 #endif 120 121 #define GetBe16(p) ((UInt16)(((UInt16)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])) 122 123 124 #ifdef MY_CPU_X86_OR_AMD64 125 126 typedef struct 127 { 128 UInt32 maxFunc; 129 UInt32 vendor[3]; 130 UInt32 ver; 131 UInt32 b; 132 UInt32 c; 133 UInt32 d; 134 } Cx86cpuid; 135 136 enum 137 { 138 CPU_FIRM_INTEL, 139 CPU_FIRM_AMD, 140 CPU_FIRM_VIA 141 }; 142 143 Bool x86cpuid_CheckAndRead(Cx86cpuid *p); 144 int x86cpuid_GetFirm(const Cx86cpuid *p); 145 146 #define x86cpuid_GetFamily(p) (((p)->ver >> 8) & 0xFF00F) 147 #define x86cpuid_GetModel(p) (((p)->ver >> 4) & 0xF00F) 148 #define x86cpuid_GetStepping(p) ((p)->ver & 0xF) 149 150 Bool CPU_Is_InOrder(); 151 Bool CPU_Is_Aes_Supported(); 152 153 #endif 154 155 EXTERN_C_END 156 157 #endif 158
