mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-27 09:52:17 +00:00
113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
/*
|
|
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVUTIL_X86_ASM_H
|
|
#define AVUTIL_X86_ASM_H
|
|
|
|
#include <stdint.h>
|
|
#include "config.h"
|
|
|
|
typedef struct xmm_reg { uint64_t a, b; } xmm_reg;
|
|
|
|
#if ARCH_X86_64
|
|
# define OPSIZE "q"
|
|
# define REG_a "rax"
|
|
# define REG_b "rbx"
|
|
# define REG_c "rcx"
|
|
# define REG_d "rdx"
|
|
# define REG_D "rdi"
|
|
# define REG_S "rsi"
|
|
# define PTR_SIZE "8"
|
|
typedef int64_t x86_reg;
|
|
|
|
# define REG_SP "rsp"
|
|
# define REG_BP "rbp"
|
|
# define REGBP rbp
|
|
# define REGa rax
|
|
# define REGb rbx
|
|
# define REGc rcx
|
|
# define REGd rdx
|
|
# define REGSP rsp
|
|
|
|
#elif ARCH_X86_32
|
|
|
|
# define OPSIZE "l"
|
|
# define REG_a "eax"
|
|
# define REG_b "ebx"
|
|
# define REG_c "ecx"
|
|
# define REG_d "edx"
|
|
# define REG_D "edi"
|
|
# define REG_S "esi"
|
|
# define PTR_SIZE "4"
|
|
typedef int32_t x86_reg;
|
|
|
|
# define REG_SP "esp"
|
|
# define REG_BP "ebp"
|
|
# define REGBP ebp
|
|
# define REGa eax
|
|
# define REGb ebx
|
|
# define REGc ecx
|
|
# define REGd edx
|
|
# define REGSP esp
|
|
#else
|
|
typedef int x86_reg;
|
|
#endif
|
|
|
|
#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE))
|
|
#define HAVE_6REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE || HAVE_EBP_AVAILABLE))
|
|
|
|
#if ARCH_X86_64 && defined(PIC)
|
|
# define BROKEN_RELOCATIONS 1
|
|
#endif
|
|
|
|
/*
|
|
* If gcc is not set to support sse (-msse) it will not accept xmm registers
|
|
* in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm
|
|
* registers to be marked as clobbered and evaluates to nothing if they are
|
|
* not supported, or to the list itself if they are supported. Since a clobber
|
|
* list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm
|
|
* registers are the only in the clobber list.
|
|
* For example a list with "eax" and "xmm0" as clobbers should become:
|
|
* : XMM_CLOBBERS("xmm0",) "eax"
|
|
* and a list with only "xmm0" should become:
|
|
* XMM_CLOBBERS_ONLY("xmm0")
|
|
*/
|
|
#if HAVE_XMM_CLOBBERS
|
|
# define XMM_CLOBBERS(...) __VA_ARGS__
|
|
# define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__
|
|
#else
|
|
# define XMM_CLOBBERS(...)
|
|
# define XMM_CLOBBERS_ONLY(...)
|
|
#endif
|
|
|
|
/* Use to export labels from asm. */
|
|
#define LABEL_MANGLE(a) EXTERN_PREFIX #a
|
|
|
|
// Use rip-relative addressing if compiling PIC code on x86-64.
|
|
#if ARCH_X86_64 && defined(PIC)
|
|
# define LOCAL_MANGLE(a) #a "(%%rip)"
|
|
#else
|
|
# define LOCAL_MANGLE(a) #a
|
|
#endif
|
|
|
|
#define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
|
|
|
|
#endif /* AVUTIL_X86_ASM_H */
|