diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2004-01-26 20:05:30 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2004-01-26 20:05:30 +0000 |
| commit | c090f46968d36be6aa1807b09960dd5e1d2d38d9 (patch) | |
| tree | 6cdfd4a689017e61e7b10794c2287debd9b3681b | |
| parent | ba5fd48547f62b5f620d0dc6e241729046cf3fe4 (diff) | |
Use libkern's fast ffs() in libc too.
| -rw-r--r-- | lib/libc/arch/m88k/string/Makefile.inc | 4 | ||||
| -rw-r--r-- | lib/libc/arch/m88k/string/ffs.S | 16 |
2 files changed, 18 insertions, 2 deletions
diff --git a/lib/libc/arch/m88k/string/Makefile.inc b/lib/libc/arch/m88k/string/Makefile.inc index e40cf017c08..7b2bddad6c5 100644 --- a/lib/libc/arch/m88k/string/Makefile.inc +++ b/lib/libc/arch/m88k/string/Makefile.inc @@ -1,7 +1,7 @@ -# $OpenBSD: Makefile.inc,v 1.3 2002/05/17 06:58:20 miod Exp $ +# $OpenBSD: Makefile.inc,v 1.4 2004/01/26 20:05:29 miod Exp $ # $NetBSD: Makefile.inc,v 1.1 1995/03/20 14:45:45 mycroft Exp $ -SRCS+= bcmp.c bcopy.c bzero.c ffs.c index.c memchr.c memcmp.c memset.c \ +SRCS+= bcmp.c bcopy.c bzero.c ffs.S index.c memchr.c memcmp.c memset.c \ rindex.c strcat.c strcmp.c strcpy.c strcspn.c strlcpy.c strlen.c \ strncat.c strncmp.c strncpy.c strpbrk.c strsep.c \ strspn.c strstr.c swab.c diff --git a/lib/libc/arch/m88k/string/ffs.S b/lib/libc/arch/m88k/string/ffs.S new file mode 100644 index 00000000000..b851d315749 --- /dev/null +++ b/lib/libc/arch/m88k/string/ffs.S @@ -0,0 +1,16 @@ +/* $OpenBSD: ffs.S,v 1.1 2004/01/26 20:05:29 miod Exp $ */ + +/* + * Written by Miodrag Vallat, 2004 - Public Domain + */ + +#include "DEFS.h" + +ENTRY(ffs) + bcnd eq0, r2, 1f /* ff1(0) = 32, treat differently */ + ff1 r3, r2 + jmp.n r1 + add r2, r3, 1 /* ff1 returns 0-31, need to increment */ +1: + jmp.n r1 + or r2, r0, r0 |