diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/i386/strchrnul.S | 4 |
2 files changed, 5 insertions, 2 deletions
@@ -1,5 +1,8 @@ 1999-04-30 Ulrich Drepper <drepper@cygnus.com> + * sysdeps/i386/strchrnul.S: Fix bugs which let to wrong results in + 25% of all cases. + * sysdeps/i386/i486/bits/string.h: Replace __uintXX_t types with base types. diff --git a/sysdeps/i386/strchrnul.S b/sysdeps/i386/strchrnul.S index 45950c3564..b99a439587 100644 --- a/sysdeps/i386/strchrnul.S +++ b/sysdeps/i386/strchrnul.S @@ -156,12 +156,12 @@ L(11): movl (%eax), %ecx /* get word (= 4 bytes) in question */ addl %ecx, %edi /* add the magic value to the word. We get carry bits reported for each byte which is *not* 0 */ - jnc L(71) /* highest byte is NUL => return NULL */ + jnc L(7) /* highest byte is NUL => return NULL */ xorl %ecx, %edi /* (word+magic)^word */ orl $0xfefefeff, %edi /* set all non-carry bits */ incl %edi /* add 1: if one carry bit was *not* set the addition will not result in 0. */ - jnz L(71) /* found NUL => return NULL */ + jnz L(7) /* found NUL => return NULL */ movl 4(%eax), %ecx /* get word (= 4 bytes) in question */ xorl %edx, %ecx /* XOR with word c|c|c|c => bytes of str == c |