diff options
| -rw-r--r-- | ChangeLog | 7 | ||||
| -rw-r--r-- | sysdeps/alpha/strlen.c | 9 |
2 files changed, 11 insertions, 5 deletions
@@ -1,6 +1,11 @@ +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. + Sun Apr 16 03:23:09 1995 Brendan Kehoe (brendan@zen.org) - * /sysdeps/unix/bsd/ultrix4/mips/sysdep.h: New file defining + * sysdeps/unix/bsd/ultrix4/mips/sysdep.h: New file defining NO_UNDERSCORES then using sysdeps/unix/mips/sysdep.h. Fri Apr 14 18:49:03 1995 Brendan Kehoe (brendan@zen.org) 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; } } } |