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authorRoland McGrath <roland@gnu.org>2008-11-26 07:26:32 +0000
committerRoland McGrath <roland@gnu.org>2008-11-26 07:26:32 +0000
commitc0439b95b88bccacb5562e372f881beb23376a72 (patch)
treeaea008f060bef693d43f285f5adb5ece05cb7db6 /sysdeps/alpha/ffs.S
parentf1092afe15ad779d61a1420c05854a9122d3ce5e (diff)
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Moved alpha to ports repository.
2008-11-25  Roland McGrath  <roland@redhat.com>

	* sysdeps/alpha, sysdeps/unix/bsd/osf/alpha,
	sysdeps/unix/bsd/Attic/osf1/alpha, sysdeps/unix/sysv/linux/alpha,
	sysdeps/unix/sysv/linux/alpha/alpha, sysdeps/unix/alpha,
	sysdeps/mach/alpha, sysdeps/mach/hurd/alpha:
	Subdirectories moved to ports repository.
	* configure.in (base_machine): Remove alpha case.
Diffstat (limited to 'sysdeps/alpha/ffs.S')
-rw-r--r--sysdeps/alpha/ffs.S91
1 files changed, 0 insertions, 91 deletions
diff --git a/sysdeps/alpha/ffs.S b/sysdeps/alpha/ffs.S
deleted file mode 100644
index 5f2074ee7c..0000000000
--- a/sysdeps/alpha/ffs.S
+++ /dev/null
@@ -1,91 +0,0 @@
-/* Copyright (C) 1996, 1997, 1998, 2004 Free Software Foundation, Inc.
-   Contributed by David Mosberger (davidm@cs.arizona.edu).
-   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, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
-
-/* Finds the first bit set in an integer.  Optimized for the Alpha
-   architecture.  */
-
-#include <sysdep.h>
-
-	.set noreorder
-	.set noat
-
-
-ENTRY(__ffs)
-#ifdef PROF
-	ldgp	gp, 0(pv)
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-	.prologue 1
-	zap	$16, 0xF0, $16
-	br	$ffsl..ng
-#else
-	.prologue 0
-	zap	$16, 0xF0, $16
-	# FALLTHRU
-#endif
-END(__ffs)
-
-	.align 4
-ENTRY(ffsl)
-#ifdef PROF
-	ldgp	gp, 0(pv)
-	lda	AT, _mcount
-	jsr	AT, (AT), _mcount
-	.prologue 1
-$ffsl..ng:
-#else
-	.prologue 0
-#endif
-	not	$16, $1		# e0    :
-	ldi	$2, -1		# .. e1 :
-	cmpbge	$1, $2, $3	# e0    : bit N == 1 for byte N == 0
-	clr	$0		# .. e1 :
-	addq	$3, 1, $4	# e0    :
-	bic	$4, $3, $3	# e1    : bit N == 1 for first byte N != 0
-	and	$3, 0xF0, $4	# e0    :
-	and	$3, 0xCC, $5	# .. e1 :
-	and	$3, 0xAA, $6	# e0    :
-	cmovne	$4, 4, $0	# .. e1 :
-	cmovne	$5, 2, $5	# e0    :
-	cmovne  $6, 1, $6	# .. e1 :
-	addl	$0, $5, $0	# e0    :
-	addl	$0, $6, $0	# e1    : $0 == N
-	extbl	$16, $0, $1	# e0    : $1 == byte N
-	ldi	$2, 1		# .. e1 :
-	negq	$1, $3		# e0    :
-	and	$3, $1, $3	# e1    : bit N == least bit set of byte N
-	and	$3, 0xF0, $4	# e0    :
-	and	$3, 0xCC, $5	# .. e1 :
-	and	$3, 0xAA, $6	# e0    :
-	cmovne	$4, 5, $2	# .. e1 :
-	cmovne	$5, 2, $5	# e0    :
-	cmovne	$6, 1, $6	# .. e1 :
-	s8addl	$0, $2, $0	# e0    : mult byte ofs by 8 and sum
-	addl	$5, $6, $5	# .. e1 :
-	addl	$0, $5, $0	# e0    :
-	nop			# .. e1 :
-	cmoveq	$16, 0, $0	# e0    : trap input == 0 case.
-	ret			# .. e1 : 18
-
-END(ffsl)
-
-weak_alias (__ffs, ffs)
-libc_hidden_builtin_def (ffs)
-weak_extern (ffsl)
-weak_alias (ffsl, ffsll)