1 /* SPARC v9 __mpn_rshift --
3 Copyright (C) 1996-2017 Free Software Foundation, Inc.
5 This file is part of the GNU MP Library.
7 The GNU MP Library is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or (at your
10 option) any later version.
12 The GNU MP Library is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with the GNU MP Library; see the file COPYING.LIB. If not,
19 see <http://www.gnu.org/licenses/>. */
29 .register %g2, #scratch
30 .register %g3, #scratch
33 ldx [%o1],%g2 ! load first limb
34 sub %g0,%o3,%o5 ! negate shift count
36 andcc %o2,4-1,%g4 ! number of limbs in first loop
37 sllx %g2,%o5,%g1 ! compute function result
38 be,pn %xcc,.L0 ! if multiple of 4 limbs, skip first loop
41 sub %o2,%g4,%o2 ! adjust count for main loop
43 .Loop0: ldx [%o1+8],%g3
57 .Loop: ldx [%o1+8],%g3
86 .Lend: srlx %g2,%o3,%g2