Commit dc7d23cf authored by mru's avatar mru

check for x86 bswap instruction


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@12375 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b
parent bde02945
...@@ -708,6 +708,7 @@ HAVE_LIST=" ...@@ -708,6 +708,7 @@ HAVE_LIST="
$THREADS_LIST $THREADS_LIST
altivec_h altivec_h
arpa_inet_h arpa_inet_h
bswap
byteswap_h byteswap_h
closesocket closesocket
cmov cmov
...@@ -1504,6 +1505,8 @@ EOF ...@@ -1504,6 +1505,8 @@ EOF
# check whether binutils is new enough to compile SSSE3 # check whether binutils is new enough to compile SSSE3
enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"' enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
check_asm bswap '"bswap %%eax" ::: "%eax"'
fi fi
# check for assembler specific support # check for assembler specific support
...@@ -1989,9 +1992,6 @@ if enabled bigendian; then ...@@ -1989,9 +1992,6 @@ if enabled bigendian; then
echo "WORDS_BIGENDIAN=yes" >> config.mak echo "WORDS_BIGENDIAN=yes" >> config.mak
echo "#define WORDS_BIGENDIAN 1" >> $TMPH echo "#define WORDS_BIGENDIAN 1" >> $TMPH
fi fi
if enabled mmx; then
echo "#define __CPU__ 586" >> $TMPH
fi
if enabled sdl; then if enabled sdl; then
echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak echo "SDL_LIBS=`"${SDL_CONFIG}" --libs`" >> config.mak
......
...@@ -56,7 +56,7 @@ static av_always_inline uint16_t bswap_16(uint16_t x) ...@@ -56,7 +56,7 @@ static av_always_inline uint16_t bswap_16(uint16_t x)
static av_always_inline uint32_t bswap_32(uint32_t x) static av_always_inline uint32_t bswap_32(uint32_t x)
{ {
#if defined(ARCH_X86) #if defined(ARCH_X86)
#if __CPU__ != 386 #ifdef HAVE_BSWAP
__asm("bswap %0": __asm("bswap %0":
"=r" (x) : "=r" (x) :
#else #else
......
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