1/*
2 * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of Libav.
5 *
6 * Libav is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * Libav is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Libav; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef AVUTIL_X86_CPU_H
22#define AVUTIL_X86_CPU_H
23
24#include <stdint.h>
25#include "config.h"
26
27#if ARCH_X86_64
28#    define OPSIZE "q"
29#    define REG_a "rax"
30#    define REG_b "rbx"
31#    define REG_c "rcx"
32#    define REG_d "rdx"
33#    define REG_D "rdi"
34#    define REG_S "rsi"
35#    define PTR_SIZE "8"
36typedef int64_t x86_reg;
37
38#    define REG_SP "rsp"
39#    define REG_BP "rbp"
40#    define REGBP   rbp
41#    define REGa    rax
42#    define REGb    rbx
43#    define REGc    rcx
44#    define REGd    rdx
45#    define REGSP   rsp
46
47#elif ARCH_X86_32
48
49#    define OPSIZE "l"
50#    define REG_a "eax"
51#    define REG_b "ebx"
52#    define REG_c "ecx"
53#    define REG_d "edx"
54#    define REG_D "edi"
55#    define REG_S "esi"
56#    define PTR_SIZE "4"
57typedef int32_t x86_reg;
58
59#    define REG_SP "esp"
60#    define REG_BP "ebp"
61#    define REGBP   ebp
62#    define REGa    eax
63#    define REGb    ebx
64#    define REGc    ecx
65#    define REGd    edx
66#    define REGSP   esp
67#else
68typedef int x86_reg;
69#endif
70
71#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE))
72#define HAVE_6REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE || HAVE_EBP_AVAILABLE))
73
74#if ARCH_X86_64 && defined(PIC)
75#    define BROKEN_RELOCATIONS 1
76#endif
77
78/*
79 * If gcc is not set to support sse (-msse) it will not accept xmm registers
80 * in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm
81 * registers to be marked as clobbered and evaluates to nothing if they are
82 * not supported, or to the list itself if they are supported. Since a clobber
83 * list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm
84 * registers are the only in the clobber list.
85 * For example a list with "eax" and "xmm0" as clobbers should become:
86 * : XMM_CLOBBERS("xmm0",) "eax"
87 * and a list with only "xmm0" should become:
88 * XMM_CLOBBERS_ONLY("xmm0")
89 */
90#if HAVE_XMM_CLOBBERS
91#    define XMM_CLOBBERS(...)        __VA_ARGS__
92#    define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__
93#else
94#    define XMM_CLOBBERS(...)
95#    define XMM_CLOBBERS_ONLY(...)
96#endif
97
98#endif /* AVUTIL_X86_CPU_H */
99