lshift.asm revision 1.1.1.1 
1dnl  VAX mpn_lshift -- left shift.
2
3dnl  Copyright 1999, 2000, 2001, 2012 Free Software Foundation, Inc.
4
5dnl  This file is part of the GNU MP Library.
6
7dnl  The GNU MP Library is free software; you can redistribute it and/or modify
8dnl  it under the terms of the GNU Lesser General Public License as published
9dnl  by the Free Software Foundation; either version 3 of the License, or (at
10dnl  your option) any later version.
11
12dnl  The GNU MP Library is distributed in the hope that it will be useful, but
13dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
15dnl  License for more details.
16
17dnl  You should have received a copy of the GNU Lesser General Public License
18dnl  along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.
19
20include(`../config.m4')
21
22ASM_START()
23PROLOGUE(mpn_lshift)
24	.word	0x1c0
25	movl	4(ap), r7
26	movl	8(ap), r6
27	movl	12(ap), r1
28	movl	16(ap), r8
29
30	moval	(r6)[r1], r6
31	moval	(r7)[r1], r7
32	clrl	r3
33	movl	-(r6), r2
34	ashq	r8, r2, r4
35	movl	r5, r0
36	movl	r2, r3
37	decl	r1
38	jeql	L(end)
39
40L(top):	movl	-(r6), r2
41	ashq	r8, r2, r4
42	movl	r5, -(r7)
43	movl	r2, r3
44	sobgtr	r1, L(top)
45
46L(end):	movl	r4, -4(r7)
47	ret
48EPILOGUE()
49