Update of /cvsroot/linux-vax/kernel-2.5/arch/vax/lib
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv32049
Added Files:
udiv.S urem.S
Removed Files:
udiv.c urem.c
Log Message:
Use NetBSD's implementations of __udiv and __urem
--- urem.c DELETED ---
--- NEW FILE: urem.S ---
/* $NetBSD: urem.S,v 1.3 2003/08/07 16:32:24 agc Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Donn Seeley at UUNET Technologies, Inc.
*
* 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. 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.
*
* @(#)urem.s 5.6 (Berkeley) 4/15/91
*/
/*
* Modified for Linux/VAX - Kenn Humborg 2005-05-26
*/
#include <linux/linkage.h>
/*
* Unsigned modulus, PCC flavor.
* urem() takes an ordinary dividend/divisor pair;
*/
#define DIVIDEND 4(%ap)
#define DIVISOR 8(%ap)
ENTRY(__urem)
.word 0x02 # save R2
movl 8(%ap),%r2
jlss Leasy # big divisor: settle by comparison
movl 4(%ap),%r0
jlss Lhard # big dividend: need extended division
divl3 %r2,%r0,%r1 # small divisor and dividend: signed modulus
mull2 %r2,%r1
subl2 %r1,%r0
ret
Lhard:
clrl %r1
ediv %r2,%r0,%r1,%r0
ret
Leasy:
subl3 %r2,DIVIDEND,%r0
jcc Ldifference # if divisor goes in once, return difference
movl DIVIDEND,%r0 # if divisor is bigger, return dividend
Ldifference:
ret
--- NEW FILE: udiv.S ---
/* $NetBSD: udiv.S,v 1.3 2003/08/07 16:32:24 agc Exp $ */
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Donn Seeley at UUNET Technologies, Inc.
*
* 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. 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.
*
* @(#)udiv.s 5.6 (Berkeley) 4/15/91
*/
/*
* Modified for Linux/VAX - Kenn Humborg 2005-05-26
*/
#include <linux/linkage.h>
/*
* Unsigned division, PCC flavor.
* udiv() takes an ordinary dividend/divisor pair;
*/
#define DIVIDEND 4(%ap)
#define DIVISOR 8(%ap)
ENTRY(__udiv)
.word 0x02 # save R2
movl DIVISOR,%r2
jlss Leasy # big divisor: settle by comparison
movl DIVIDEND,%r0
jlss Lhard # big dividend: extended division
divl2 %r2,%r0 # small divisor and dividend: signed division
ret
Lhard:
clrl %r1
ediv %r2,%r0,%r0,%r1
ret
Leasy:
cmpl DIVIDEND,%r2
jgequ Lone # if dividend is as big or bigger, return 1
clrl %r0 # else return 0
ret
Lone:
movl $1,%r0
ret
--- udiv.c DELETED ---
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