1/* CpuArch.h -- CPU specific code
  22013-11-12: Igor Pavlov : Public domain */
  3
  4#ifndef __CPU_ARCH_H
  5#define __CPU_ARCH_H
  6
  7#include "7zTypes.h"
  8
  9EXTERN_C_BEGIN
 10
 11/*
 12MY_CPU_LE means that CPU is LITTLE ENDIAN.
 13If MY_CPU_LE is not defined, we don't know about that property of platform (it can be LITTLE ENDIAN).
 14
 15MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
 16If 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)
 60Stop_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
126typedef struct
127{
128  UInt32 maxFunc;
129  UInt32 vendor[3];
130  UInt32 ver;
131  UInt32 b;
132  UInt32 c;
133  UInt32 d;
134} Cx86cpuid;
135
136enum
137{
138  CPU_FIRM_INTEL,
139  CPU_FIRM_AMD,
140  CPU_FIRM_VIA
141};
142
143Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
144int 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
150Bool CPU_Is_InOrder();
151Bool CPU_Is_Aes_Supported();
152
153#endif
154
155EXTERN_C_END
156
157#endif