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Bswap fixes for 64bit cpus, thx to Falk Hueffner for the hint.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6923 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
atmos4 2002-08-05 13:04:54 +00:00
parent fb8b0be71f
commit 5c90181715
1 changed files with 2 additions and 2 deletions
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4
bswap.h
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@ -40,7 +40,7 @@ inline static unsigned int ByteSwap32(unsigned int x)
inline static unsigned long long int ByteSwap64(unsigned long long int x)
{
register union { __extension__ unsigned long long int __ll;
unsigned long int __l[2]; } __x;
unsigned int __l[2]; } __x;
asm("xchgl %0,%1":
"=r"(__x.__l[0]),"=r"(__x.__l[1]):
"0"(bswap_32((unsigned long)x)),"1"(bswap_32((unsigned long)(x>>32))));
@ -61,7 +61,7 @@ inline static unsigned long long int ByteSwap64(unsigned long long int x)
#define bswap_64(x) \
(__extension__ \
({ union { __extension__ unsigned long long int __ll; \
unsigned long int __l[2]; } __w, __r; \
unsigned int __l[2]; } __w, __r; \
__w.__ll = (x); \
__r.__l[0] = bswap_32 (__w.__l[1]); \
__r.__l[1] = bswap_32 (__w.__l[0]); \