1 dnl PowerPC-64 mpn_rshift -- rp[] = up[] >> cnt
3 dnl Copyright 2003, 2005 Free Software Foundation, Inc.
5 dnl This file is part of the GNU MP Library.
7 dnl The GNU MP Library is free software; you can redistribute it and/or modify
8 dnl it under the terms of the GNU Lesser General Public License as published
9 dnl by the Free Software Foundation; either version 3 of the License, or (at
10 dnl your option) any later version.
12 dnl The GNU MP Library is distributed in the hope that it will be useful, but
13 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 dnl License for more details.
17 dnl You should have received a copy of the GNU Lesser General Public License
18 dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
20 include(`../config.m4')
43 ifdef(`HAVE_ABI_mode32',
44 ` rldicl n, n, 0, 32') C zero extend n
45 mtctr n C copy n to count register
47 subfic tnc, cnt, 64 C reverse shift count
51 sld r12, u0, tnc C return value
52 bdz L(1) C jump for n = 1
55 bdz L(2) C jump for n = 2
58 bdz L(end) C jump for n = 3
60 L(oop): sld v1, u1, tnc
76 L(end): sld v1, u1, tnc
85 ifdef(`HAVE_ABI_mode32',
92 L(exit): sld v0, u0, tnc
101 ifdef(`HAVE_ABI_mode32',