xref: /src/common/lib/libc/arch/m68k/atomic/atomic_nand.S

/*	$NetBSD: atomic_nand.S,v 1.2.30.2 2020/04/21 19:37:43 martin Exp $	*/

/*-
 * Copyright (c) 2007 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "atomic_op_asm.h"

	.text

ENTRY(_atomic_nand_32_nv)
	movl	4(%sp), %a0
1:	movl	(%a0), %d0
	movl	%d0, %d1
	andl	8(%sp), %d0
	notl	%d0
	casl	%d1, %d0, (%a0)
	bne	1b
	movl	%d0, %a0
	rts
END(_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_32_nv,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_uint_nv,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_uint_nv,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_ulong_nv,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_ulong_nv,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_ptr_nv,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_ptr_nv,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_32,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_uint,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_uint,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_ulong,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_ulong,_atomic_nand_32_nv)
ATOMIC_OP_ALIAS(atomic_nand_ptr,_atomic_nand_32_nv)
STRONG_ALIAS(_atomic_nand_ptr,_atomic_nand_32_nv)
CRT_ALIAS(__sync_nand_and_fetch_4,_atomic_nand_32_nv)

ENTRY(__sync_fetch_and_nand_4)
	movl	4(%sp), %a0
1:	movl	(%a0), %d0
	movl	%d0, %d1
	andl	8(%sp), %d1
	notl	%d1
	casl	%d0, %d1, (%a0)
	bne	1b
	movl	%d0, %a0
	rts
END(__sync_fetch_and_nand_4)


ENTRY(_atomic_nand_16_nv)
	movl	4(%sp), %a0
1:	movw	(%a0), %d0
	movw	%d0, %d1
	andw	8(%sp), %d0
	notw	%d0
	casw	%d1, %d0, (%a0)
	bne	1b
	rts
END(_atomic_nand_16_nv)

CRT_ALIAS(__sync_nand_and_fetch_2,_atomic_nand_16_nv)

ENTRY(__sync_fetch_and_nand_2)
	movl	4(%sp), %a0
1:	movw	(%a0), %d0
	movw	%d0, %d1
	andw	8(%sp), %d1
	notw	%d1
	casw	%d0, %d1, (%a0)
	bne	1b
	rts
END(__sync_fetch_and_nand_2)


ENTRY(_atomic_nand_8_nv)
	movl	4(%sp), %a0
1:	movb	(%a0), %d0
	movb	%d0, %d1
	andb	8(%sp), %d0
	notb	%d0
	casb	%d1, %d0, (%a0)
	bne	1b
	rts
END(_atomic_nand_8_nv)

CRT_ALIAS(__sync_nand_and_fetch_1,_atomic_nand_8_nv)

ENTRY(__sync_fetch_and_nand_1)
	movl	4(%sp), %a0
1:	movb	(%a0), %d0
	movb	%d0, %d1
	andb	8(%sp), %d1
	notb	%d1
	casb	%d0, %d1, (%a0)
	bne	1b
	rts
END(__sync_fetch_and_nand_1)