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authorBrendan Kehoe <brendan@zen.org>1995-04-17 22:02:01 +0000
committerBrendan Kehoe <brendan@zen.org>1995-04-17 22:02:01 +0000
commit5fa258865198ba3b54d79d961f2092a407a914e8 (patch)
treebba8c282debad8570d7ad1bef21947fa7a086dca /sysdeps/alpha
parente0585da11141e9c96143fe55d74ec8c0591d1d86 (diff)
* 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.c9
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;
}
}
}