1 dnl SPARC mpn_lshift -- Shift a number left.
4 dnl Copyright (C) 1995, 1996, 2000 Free Software Foundation, Inc.
6 dnl This file is part of the GNU MP Library.
8 dnl The GNU MP Library is free software; you can redistribute it and/or modify
9 dnl it under the terms of the GNU Lesser General Public License as published
10 dnl by the Free Software Foundation; either version 2.1 of the License, or (at
11 dnl your option) any later version.
13 dnl The GNU MP Library is distributed in the hope that it will be useful, but
14 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 dnl License for more details.
18 dnl You should have received a copy of the GNU Lesser General Public License
19 dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write to
20 dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 dnl MA 02111-1307, USA.
24 include(`../config.m4')
35 add %o1,%g1,%o1 C make %o1 point at end of src
36 ld [%o1-4],%g2 C load first limb
37 sub %g0,%o3,%o5 C negate shift count
38 add %o0,%g1,%o0 C make %o0 point at end of res
40 andcc %o2,4-1,%g4 C number of limbs in first loop
41 srl %g2,%o5,%g1 C compute function result
42 be L(0) C if multiple of 4 limbs, skip first loop
45 sub %o2,%g4,%o2 C adjust count for main loop
93 L(end): sll %g2,%o3,%g2