1/* CpuArch.h -- CPU specific code
22010-10-26: Igor Pavlov : Public domain */
3
4#ifndef __CPU_ARCH_H
5#define __CPU_ARCH_H
6
7#include "Types.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__)
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 *)(p))
66#define GetUi32(p) (*(const UInt32 *)(p))
67#define GetUi64(p) (*(const UInt64 *)(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#pragma intrinsic(_byteswap_ulong)
103#pragma intrinsic(_byteswap_uint64)
104#define GetBe32(p) _byteswap_ulong(*(const UInt32 *)(const Byte *)(p))
105#define GetBe64(p) _byteswap_uint64(*(const UInt64 *)(const Byte *)(p))
106
107#else
108
109#define GetBe32(p) ( \
110    ((UInt32)((const Byte *)(p))[0] << 24) | \
111    ((UInt32)((const Byte *)(p))[1] << 16) | \
112    ((UInt32)((const Byte *)(p))[2] <<  8) | \
113             ((const Byte *)(p))[3] )
114
115#define GetBe64(p) (((UInt64)GetBe32(p) << 32) | GetBe32(((const Byte *)(p)) + 4))
116
117#endif
118
119#define GetBe16(p) (((UInt16)((const Byte *)(p))[0] << 8) | ((const Byte *)(p))[1])
120
121
122#ifdef MY_CPU_X86_OR_AMD64
123
124typedef struct
125{
126  UInt32 maxFunc;
127  UInt32 vendor[3];
128  UInt32 ver;
129  UInt32 b;
130  UInt32 c;
131  UInt32 d;
132} Cx86cpuid;
133
134enum
135{
136  CPU_FIRM_INTEL,
137  CPU_FIRM_AMD,
138  CPU_FIRM_VIA
139};
140
141Bool x86cpuid_CheckAndRead(Cx86cpuid *p);
142int x86cpuid_GetFirm(const Cx86cpuid *p);
143
144#define x86cpuid_GetFamily(p) (((p)->ver >> 8) & 0xFF00F)
145#define x86cpuid_GetModel(p) (((p)->ver >> 4) & 0xF00F)
146#define x86cpuid_GetStepping(p) ((p)->ver & 0xF)
147
148Bool CPU_Is_InOrder();
149Bool CPU_Is_Aes_Supported();
150
151#endif
152
153EXTERN_C_END
154
155#endif
156