summary refs log tree commit diff
path: root/ports/sysdeps/alpha/alphaev67/ffsll.S
diff options
context:
space:
mode:
Diffstat (limited to 'ports/sysdeps/alpha/alphaev67/ffsll.S')
-rw-r--r--ports/sysdeps/alpha/alphaev67/ffsll.S44
1 files changed, 44 insertions, 0 deletions
diff --git a/ports/sysdeps/alpha/alphaev67/ffsll.S b/ports/sysdeps/alpha/alphaev67/ffsll.S
new file mode 100644
index 0000000000..77ef7d5dc5
--- /dev/null
+++ b/ports/sysdeps/alpha/alphaev67/ffsll.S
@@ -0,0 +1,44 @@
+/* Copyright (C) 2000 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+/* Finds the first bit set in a long.  */
+
+#include <sysdep.h>
+
+	.arch ev6
+	.set noreorder
+	.set noat
+
+ENTRY(ffsl)
+#ifdef PROF
+	ldgp	gp, 0(pv)
+	lda	AT, _mcount
+	jsr	AT, (AT), _mcount
+	.prologue 1
+#else
+	.prologue 0
+#endif
+
+	cttz	$16, $0
+	addq	$0, 1, $0
+	cmoveq	$16, 0, $0
+	ret
+
+END(ffsl)
+
+weak_extern (ffsl)
+weak_alias (ffsl, ffsll)