libcpats.c

早期freebsd实现

/*-
 * Copyright (c) 1984, 1986 The Regents of the University of California.
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#ifndef lint
static char sccsid[] = "@(#)libcpats.c	7.3 (Berkeley) 11/13/91";
#endif /* not lint */

#include "inline.h"

/*
 * Pattern table for the C library.
 */
struct pats libc_ptab[] = {

#if defined(NOTDEF) && defined(vax)
	{ 1, "_fgetc\n",
"	sobgeq	*(sp),1f\n\
	calls	$1,__filbuf\n\
	jbr     2f\n\
1:\n\
	addl3	$4,(sp)+,r1\n\
	movzbl	*(r1),r0\n\
	incl	(r1)\n\
2:\n" },

	{ 2, "_fputc\n",
"	sobgeq	*4(sp),1f\n\
	calls	$2,__flsbuf\n\
	jbr	2f\n\
1:\n\
	movq	(sp)+,r0\n\
	movb	r0,*4(r1)\n\
	incl	4(r1)\n\
2:\n" },
#endif

#ifdef mc68000
/* someday... */
#endif mc68000

	{ 0, "", "" }
};

struct pats vaxsubset_libc_ptab[] = {

	{ 1, "_strlen\n",
"	movl	(sp)+,r5\n\
	movl	r5,r1\n\
1:\n\
	tstb	(r1)+\n\
	jneq	1b\n\
	decl	r1\n\
	subl3	r5,r1,r0\n" },

	{ 0, "", "" }
};

struct pats vax_libc_ptab[] = {

	{ 1, "_strlen\n",
"	movl	(sp)+,r5\n\
	movl	r5,r1\n\
1:\n\
	locc	$0,$65535,(r1)\n\
	jeql	1b\n\
	subl3	r5,r1,r0\n" },

	{ 0, "", "" }
};