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Check whether IBM or Apple PPC assembler syntax is used

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This checks which assembler syntax is supported and defines macros
for register names accordingly.

Originally committed as revision 23952 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2010-07-01 23:21:27 +00:00
parent ea59f489b0
commit 2f0c136e1f
3 changed files with 103 additions and 0 deletions
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2
configure vendored
View File

@ -989,6 +989,7 @@ HAVE_LIST="
GetProcessTimes
getrusage
struct_rusage_ru_maxrss
ibm_asm
inet_aton
inline_asm
isatty
@ -2340,6 +2341,7 @@ elif enabled ppc; then
enable local_aligned_8 local_aligned_16
check_asm dcbzl '"dcbzl 0, 1"'
check_asm ibm_asm '"add 0, 0, 0"'
check_asm ppc4xx '"maclhw r10, r11, r12"'
check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'

64
libavcodec/ppc/asm.S Normal file
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@ -0,0 +1,64 @@
/*
* Copyright (c) 2009 Loren Merritt
*
* 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
*/
#include "config.h"
#if HAVE_IBM_ASM
.macro DEFINE_REG n
.equiv r\n, \n
.equiv f\n, \n
.equiv v\n, \n
.endm
DEFINE_REG 0
DEFINE_REG 1
DEFINE_REG 2
DEFINE_REG 3
DEFINE_REG 4
DEFINE_REG 5
DEFINE_REG 6
DEFINE_REG 7
DEFINE_REG 8
DEFINE_REG 9
DEFINE_REG 10
DEFINE_REG 11
DEFINE_REG 12
DEFINE_REG 13
DEFINE_REG 14
DEFINE_REG 15
DEFINE_REG 16
DEFINE_REG 17
DEFINE_REG 18
DEFINE_REG 19
DEFINE_REG 20
DEFINE_REG 21
DEFINE_REG 22
DEFINE_REG 23
DEFINE_REG 24
DEFINE_REG 25
DEFINE_REG 26
DEFINE_REG 27
DEFINE_REG 28
DEFINE_REG 29
DEFINE_REG 30
DEFINE_REG 31
#endif /* HAVE_IBM_ASM */

37
libavcodec/ppc/regs.h Normal file
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@ -0,0 +1,37 @@
/*
* Copyright (c) 2010 Mans Rullgard
*
* 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 AVCODEC_PPC_REGS_H
#define AVCODEC_PPC_REGS_H
#include "libavutil/avutil.h"
#include "config.h"
#if HAVE_IBM_ASM
# define r(n) AV_TOSTRING(n)
# define f(n) AV_TOSTRING(n)
# define v(n) AV_TOSTRING(n)
#else
# define r(n) AV_TOSTRING(r ## n)
# define f(n) AV_TOSTRING(f ## n)
# define v(n) AV_TOSTRING(v ## n)
#endif
#endif /* AVCODEC_PPC_REGS_H */