1 /* CpuArch.h -- CPU specific code
2 2016-06-09: Igor Pavlov : Public domain */
12 MY_CPU_LE means that CPU is LITTLE ENDIAN.
13 MY_CPU_BE means that CPU is BIG ENDIAN.
14 If MY_CPU_LE and MY_CPU_BE are not defined, we don't know about ENDIANNESS of platform.
16 MY_CPU_LE_UNALIGN means that CPU is LITTLE ENDIAN and CPU supports unaligned memory accesses.
20 || defined(_M_AMD64) \
21 || defined(__x86_64__) \
22 || defined(__AMD64__) \
27 #if defined(MY_CPU_AMD64) \
29 || defined(__AARCH64EL__) \
30 || defined(__AARCH64EB__)
34 #if defined(_M_IX86) || defined(__i386__)
38 #if defined(MY_CPU_X86) || defined(MY_CPU_AMD64)
39 #define MY_CPU_X86_OR_AMD64
42 #if defined(MY_CPU_X86) \
44 || defined(__ARMEL__) \
45 || defined(__THUMBEL__) \
46 || defined(__ARMEB__) \
47 || defined(__THUMBEB__)
51 #if defined(_WIN32) && defined(_M_ARM)
55 #if defined(_WIN32) && defined(_M_IA64)
56 #define MY_CPU_IA64_LE
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) \
69 || defined(__BFIN__) \
70 || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__))
74 #if defined(__BIG_ENDIAN__) \
75 || defined(__ARMEB__) \
76 || defined(__THUMBEB__) \
77 || defined(__AARCH64EB__) \
78 || defined(__MIPSEB__) \
79 || defined(__MIPSEB) \
81 || defined(__m68k__) \
82 || defined(__s390__) \
83 || defined(__s390x__) \
84 || defined(__zarch__) \
85 || (defined(__BYTE_ORDER__) && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
89 #if defined(MY_CPU_LE) && defined(MY_CPU_BE)
90 Stop_Compiling_Bad_Endian
95 #if defined(MY_CPU_X86_OR_AMD64) \
96 /* || defined(__AARCH64EL__) */
97 #define MY_CPU_LE_UNALIGN
102 #ifdef MY_CPU_LE_UNALIGN
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))
108 #define SetUi16(p, v) { *(UInt16 *)(p) = (v); }
109 #define SetUi32(p, v) { *(UInt32 *)(p) = (v); }
110 #define SetUi64(p, v) { *(UInt64 *)(p) = (v); }
114 #define GetUi16(p) ( (UInt16) ( \
115 ((const Byte *)(p))[0] | \
116 ((UInt16)((const Byte *)(p))[1] << 8) ))
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))
124 #define GetUi64(p) (GetUi32(p) | ((UInt64)GetUi32(((const Byte *)(p)) + 4) << 32))
126 #define SetUi16(p, v) { Byte *_ppp_ = (Byte *)(p); UInt32 _vvv_ = (v); \
127 _ppp_[0] = (Byte)_vvv_; \
128 _ppp_[1] = (Byte)(_vvv_ >> 8); }
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); }
136 #define SetUi64(p, v) { Byte *_ppp2_ = (Byte *)(p); UInt64 _vvv2_ = (v); \
137 SetUi32(_ppp2_ , (UInt32)_vvv2_); \
138 SetUi32(_ppp2_ + 4, (UInt32)(_vvv2_ >> 32)); }
143 #if defined(MY_CPU_LE_UNALIGN) && /* defined(_WIN64) && */ (_MSC_VER >= 1300)
145 /* Note: we use bswap instruction, that is unsupported in 386 cpu */
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))
154 #define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = _byteswap_ulong(v)
156 #elif defined(MY_CPU_LE_UNALIGN) && defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
158 #define GetBe32(p) __builtin_bswap32(*(const UInt32 *)(const Byte *)(p))
159 #define GetBe64(p) __builtin_bswap64(*(const UInt64 *)(const Byte *)(p))
161 #define SetBe32(p, v) (*(UInt32 *)(void *)(p)) = __builtin_bswap32(v)
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] )
171 #define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
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_; }
182 #define GetBe16(p) ( (UInt16) ( \
183 ((UInt16)((const Byte *)(p))[0] << 8) | \
184 ((const Byte *)(p))[1] ))
188 #ifdef MY_CPU_X86_OR_AMD64
207 void MyCPUID(UInt32 function
, UInt32
*a
, UInt32
*b
, UInt32
*c
, UInt32
*d
);
209 Bool
x86cpuid_CheckAndRead(Cx86cpuid
*p
);
210 int x86cpuid_GetFirm(const Cx86cpuid
*p
);
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)
216 Bool
CPU_Is_InOrder();
217 Bool
CPU_Is_Aes_Supported();