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author | Brendan Kehoe <brendan@zen.org> | 1995-04-17 22:02:01 +0000 |
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committer | Brendan Kehoe <brendan@zen.org> | 1995-04-17 22:02:01 +0000 |
commit | 5fa258865198ba3b54d79d961f2092a407a914e8 (patch) | |
tree | bba8c282debad8570d7ad1bef21947fa7a086dca /sysdeps/alpha | |
parent | e0585da11141e9c96143fe55d74ec8c0591d1d86 (diff) | |
download | glibc-5fa258865198ba3b54d79d961f2092a407a914e8.tar.gz glibc-5fa258865198ba3b54d79d961f2092a407a914e8.tar.xz glibc-5fa258865198ba3b54d79d961f2092a407a914e8.zip |
* sysdeps/alpha/strlen.c (strlen): Fix cmpbge insn, and returning
of the byte that was zero, so we return a valid number. Mon Apr 17 12:02:49 1995 Brendan Kehoe (brendan@zen.org) * sysdeps/alpha/strlen.c (strlen): Fix cmpbge insn, and returning of the byte that was zero, so we return a valid number. * sysdeps/unix/bsd/ultrix4/mips/sysdep.h: New file defining
Diffstat (limited to 'sysdeps/alpha')
-rw-r--r-- | sysdeps/alpha/strlen.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/sysdeps/alpha/strlen.c b/sysdeps/alpha/strlen.c index d7744476ad..36f106c9c3 100644 --- a/sysdeps/alpha/strlen.c +++ b/sysdeps/alpha/strlen.c @@ -36,19 +36,20 @@ strlen (const char *str) for (;;) { + const unsigned long int longword = *longword_ptr++; int mask; - asm ("cmpbge %1, %2, %0" : "=r" (mask) : "r" (0), "r" (*longword_ptr++)); + + /* Set bits in MASK if bytes in LONGWORD are zero. */ + asm ("cmpbge $31, %1, %0" : "=r" (mask) : "r" (longword)); if (mask) { /* Which of the bytes was the zero? */ - const char *cp = (const char *) (longword_ptr - 1); int i; - for (i = 0; i < 6; i++) + for (i = 0; i < 8; i++) if (cp[i] == 0) return cp - str + i; - return cp - str + 7; } } } |