1/* CpuArch.h -- CPU specific code
22016-06-09: 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.
13MY_CPU_BE means that CPU is BIG ENDIAN.
14If MY_CPU_LE and MY_CPU_BE are not defined, we don't know about ENDIANNESS of platform.
15
16MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
17*/
18
19#if defined(_M_X64) \
20   || defined(_M_AMD64) \
21   || defined(__x86_64__) \
22   || defined(__AMD64__) \
23   || defined(__amd64__)
24  #define MY_CPU_AMD64
25#endif
26
27#if defined(MY_CPU_AMD64) \
28    || defined(_M_IA64) \
29    || defined(__AARCH64EL__) \
30    || defined(__AARCH64EB__)
31  #define MY_CPU_64BIT
32#endif
33
34#if defined(_M_IX86) || defined(__i386__)
35#define MY_CPU_X86
36#endif
37
38#if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
39#define MY_CPU_X86_OR_AMD64
40#endif
41
42#if defined(MY_CPU_X86) \
43    || defined(_M_ARM) \
44    || defined(__ARMEL__) \
45    || defined(__THUMBEL__) \
46    || defined(__ARMEB__) \
47    || defined(__THUMBEB__)
48  #define MY_CPU_32BIT
49#endif
50
51#if defined(_WIN32) && defined(_M_ARM)
52#define MY_CPU_ARM_LE
53#endif
54
55#if defined(_WIN32) && defined(_M_IA64)
56#define MY_CPU_IA64_LE
57#endif
58
59#if defined(MY_CPU_X86_OR_AMD64) \
60    || defined(MY_CPU_ARM_LE) \
61    || defined(MY_CPU_IA64_LE) \
62    || defined(__LITTLE_ENDIAN__) \
63    || defined(__ARMEL__) \
64    || defined(__THUMBEL__) \
65    || defined(__AARCH64EL__) \
66    || defined(__MIPSEL__) \
67    || defined(__MIPSEL) \
68    || defined(_MIPSEL) \
69    || defined(__BFIN__) \
70    || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
71  #define MY_CPU_LE
72#endif
73
74#if defined(__BIG_ENDIAN__) \
75    || defined(__ARMEB__) \
76    || defined(__THUMBEB__) \
77    || defined(__AARCH64EB__) \
78    || defined(__MIPSEB__) \
79    || defined(__MIPSEB) \
80    || defined(_MIPSEB) \
81    || defined(__m68k__) \
82    || defined(__s390__) \
83    || defined(__s390x__) \
84    || defined(__zarch__) \
85    || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
86  #define MY_CPU_BE
87#endif
88
89#if defined(MY_CPU_LE) && defined(MY_CPU_BE)
90Stop_Compiling_Bad_Endian
91#endif
92
93
94#ifdef MY_CPU_LE
95  #if defined(MY_CPU_X86_OR_AMD64) \
96      /* || defined(__AARCH64EL__) */
97    #define MY_CPU_LE_UNALIGN
98  #endif
99#endif
100
101
102#ifdef MY_CPU_LE_UNALIGN
103
104#define GetUi16(p) (*(const UInt16 *)(const void *)(p))
105#define GetUi32(p) (*(const UInt32 *)(const void *)(p))
106#define GetUi64(p) (*(const UInt64 *)(const void *)(p))
107
108#define SetUi16(p, v) { *(UInt16 *)(p) = (v); }
109#define SetUi32(p, v) { *(UInt32 *)(p) = (v); }
110#define SetUi64(p, v) { *(UInt64 *)(p) = (v); }
111
112#else
113
114#define GetUi16(p) ( (UInt16) ( \
115             ((const Byte *)(p))[0] | \
116    ((UInt16)((const Byte *)(p))[1] << 8) ))
117
118#define GetUi32(p) ( \
119             ((const Byte *)(p))[0]        | \
120    ((UInt32)((const Byte *)(p))[1] <<  8) | \
121    ((UInt32)((const Byte *)(p))[2] << 16) | \
122    ((UInt32)((const Byte *)(p))[3] << 24))
123
124#define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
125
126#define SetUi16(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
127    _ppp_[0] = (Byte)_vvv_; \
128    _ppp_[1] = (Byte)(_vvv_ >> 8); }
129
130#define SetUi32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
131    _ppp_[0] = (Byte)_vvv_; \
132    _ppp_[1] = (Byte)(_vvv_ >> 8); \
133    _ppp_[2] = (Byte)(_vvv_ >> 16); \
134    _ppp_[3] = (Byte)(_vvv_ >> 24); }
135
136#define SetUi64(p, v) { Byte *_ppp2_ = (Byte *)(p); UInt64 _vvv2_ = (v); \
137    SetUi32(_ppp2_    , (UInt32)_vvv2_); \
138    SetUi32(_ppp2_ + 4, (UInt32)(_vvv2_ >> 32)); }
139
140#endif
141
142
143#if defined(MY_CPU_LE_UNALIGN) && /* defined(_WIN64) && */ (_MSC_VER >= 1300)
144
145/* Note: we use bswap instruction, that is unsupported in 386 cpu */
146
147#include <stdlib.h>
148
149#pragma intrinsic(_byteswap_ulong)
150#pragma intrinsic(_byteswap_uint64)
151#define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p))
152#define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p))
153
154#define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = _byteswap_ulong(v)
155
156#elif defined(MY_CPU_LE_UNALIGN) && defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
157
158#define GetBe32(p) __builtin_bswap32(*(const UInt32 *)(const Byte *)(p))
159#define GetBe64(p) __builtin_bswap64(*(const UInt64 *)(const Byte *)(p))
160
161#define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = __builtin_bswap32(v)
162
163#else
164
165#define GetBe32(p) ( \
166    ((UInt32)((const Byte *)(p))[0] << 24) | \
167    ((UInt32)((const Byte *)(p))[1] << 16) | \
168    ((UInt32)((const Byte *)(p))[2] <<  8) | \
169             ((const Byte *)(p))[3] )
170
171#define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
172
173#define SetBe32(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
174    _ppp_[0] = (Byte)(_vvv_ >> 24); \
175    _ppp_[1] = (Byte)(_vvv_ >> 16); \
176    _ppp_[2] = (Byte)(_vvv_ >> 8); \
177    _ppp_[3] = (Byte)_vvv_; }
178
179#endif
180
181
182#define GetBe16(p) ( (UInt16) ( \
183    ((UInt16)((const Byte *)(p))[0] << 8) | \
184             ((const Byte *)(p))[1] ))
185
186
187
188#ifdef MY_CPU_X86_OR_AMD64
189
190typedef struct
191{
192  UInt32 maxFunc;
193  UInt32 vendor[3];
194  UInt32 ver;
195  UInt32 b;
196  UInt32 c;
197  UInt32 d;
198} Cx86cpuid;
199
200enum
201{
202  CPU_FIRM_INTEL,
203  CPU_FIRM_AMD,
204  CPU_FIRM_VIA
205};
206
207void MyCPUID(UInt32 function, UInt32 *a, UInt32 *b, UInt32 *c, UInt32 *d);
208
209Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
210int x86cpuid_GetFirm(const Cx86cpuid *p);
211
212#define x86cpuid_GetFamily(ver) (((ver >> 16) & 0xFF0) | ((ver >> 8) & 0xF))
213#define x86cpuid_GetModel(ver)  (((ver >> 12) &  0xF0) | ((ver >> 4) & 0xF))
214#define x86cpuid_GetStepping(ver) (ver & 0xF)
215
216Bool CPU_Is_InOrder();
217Bool CPU_Is_Aes_Supported();
218
219#endif
220
221EXTERN_C_END
222
223#endif
224