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/*

 * copyright (c) 2006 Michael Niedermayer 

 *

 * This file is part of FFmpeg.

 *

 * FFmpeg 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.

 *

 * FFmpeg 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 FFmpeg; 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 

#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 */