Pyrogenesis HEAD
Pyrogenesis, a RTS Engine
arch.h
Go to the documentation of this file.
1/* Copyright (C) 2021 Wildfire Games.
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining
4 * a copy of this software and associated documentation files (the
5 * "Software"), to deal in the Software without restriction, including
6 * without limitation the rights to use, copy, modify, merge, publish,
7 * distribute, sublicense, and/or sell copies of the Software, and to
8 * permit persons to whom the Software is furnished to do so, subject to
9 * the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
17 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
18 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
19 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
20 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23/*
24 * CPU architecture detection.
25 */
26
27#ifndef INCLUDED_ARCH
28#define INCLUDED_ARCH
29
30// detect target CPU architecture via predefined macros
31// .. IA-32
32#if defined(_M_IX86) || defined(__X86__) || defined(_X86_) || defined(__i386__) || defined(__i386) || defined(i386)
33# define ARCH_IA32 1
34#else
35# define ARCH_IA32 0
36#endif
37// .. IA-64
38#if defined(_M_IA64) || defined(__ia64__)
39# define ARCH_IA64 1
40#else
41# define ARCH_IA64 0
42#endif
43// .. AMD64
44#if defined(_M_X64) || defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64)
45# define ARCH_AMD64 1
46#else
47# define ARCH_AMD64 0
48#endif
49// .. Alpha
50#if defined(_M_ALPHA) || defined(__alpha__) || defined(__alpha)
51# define ARCH_ALPHA 1
52#else
53# define ARCH_ALPHA 0
54#endif
55// .. ARM
56#if defined(__arm__)
57# define ARCH_ARM 1
58#else
59# define ARCH_ARM 0
60#endif
61// .. AArch64 (ARM64)
62#if defined(__aarch64__)
63# define ARCH_AARCH64 1
64#else
65# define ARCH_AARCH64 0
66#endif
67// .. PowerPC64 (PPC64)
68#if defined(__powerpc64__)
69# define ARCH_PPC64 1
70#else
71# define ARCH_PPC64 0
72#endif
73// .. MIPS
74#if defined(__MIPS__) || defined(__mips__) || defined(__mips)
75# define ARCH_MIPS 1
76#else
77# define ARCH_MIPS 0
78#endif
79// .. E2K (MCST Elbrus 2000)
80#if defined(__e2k__)
81# define ARCH_E2K 1
82#else
83# define ARCH_E2K 0
84#endif
85
86// ensure exactly one architecture has been detected
87#if (ARCH_IA32+ARCH_IA64+ARCH_AMD64+ARCH_ALPHA+ARCH_ARM+ARCH_AARCH64+ARCH_MIPS+ARCH_E2K+ARCH_PPC64) != 1
88# error "architecture not correctly detected (either none or multiple ARCH_* defined)"
89#endif
90
91// "X86_X64"-specific code requires either IA-32 or AMD64
92#define ARCH_X86_X64 (ARCH_IA32|ARCH_AMD64)
93
94#endif // #ifndef INCLUDED_ARCH