diff options
| author | Bernd Schmidt <bernds_cb1@t-online.de> | 2007-11-23 17:14:20 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds_cb1@t-online.de> | 2007-11-23 17:14:20 +0000 |
| commit | b3ace38d1f7a2a9e71067af284a3ff38cfe26a35 (patch) | |
| tree | a5d157e6a116b232c622aa4d1763fedf68ea1174 /libc/sysdeps/linux/bfin/bits/byteswap.h | |
| parent | e17b3fdaff742b9a9145d1184fd10819f1af5f79 (diff) | |
From Jie Zhang:
__bswap_16 could not assume that it's zero extended when an unsigned short int is loaded into the data register.
Diffstat (limited to 'libc/sysdeps/linux/bfin/bits/byteswap.h')
| -rw-r--r-- | libc/sysdeps/linux/bfin/bits/byteswap.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/bfin/bits/byteswap.h b/libc/sysdeps/linux/bfin/bits/byteswap.h index de6862236..74b87d94c 100644 --- a/libc/sysdeps/linux/bfin/bits/byteswap.h +++ b/libc/sysdeps/linux/bfin/bits/byteswap.h @@ -25,9 +25,10 @@ if (__builtin_constant_p (__x)) \ __v = __bswap_constant_16 (__x); \ else \ - __asm__ ("%0 <<= 8;" \ - "%1.L = %0.L + %0.H (NS);" \ - : "+d" (__x), "=d" (__v)); \ + __asm__ ("%0 = PACK (%1.L, %1.L);" \ + "%0 >>= 8;" \ + : "=d" (__v) \ + : "d" (__x)); \ __v; })) #else static __inline unsigned short int |