blob: dff189dc4808ddee304b334c51435d764e78d1ae [file] [log] [blame]
yuezonghe824eb0c2024-06-27 02:32:26 -07001;! HP-PA __mpn_rshift --
2
3;! Copyright (C) 1992, 1994 Free Software Foundation, Inc.
4
5;! This file is part of the GNU MP Library.
6
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.
11
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.
16
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, write to
19;! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
20;! MA 02111-1307, USA.
21
22
23;! INPUT PARAMETERS
24;! res_ptr gr26
25;! s_ptr gr25
26;! size gr24
27;! cnt gr23
28
29 .text
30 .export __mpn_rshift
31__mpn_rshift:
32 .proc
33 .callinfo frame=64,no_calls
34 .entry
35
36 ldws,ma 4(%r25),%r22
37 mtsar %r23
38 addib,= -1,%r24,L$0004
39 vshd %r22,%r0,%r28 ;! compute carry out limb
40 ldws,ma 4(%r25),%r29
41 addib,= -1,%r24,L$0002
42 vshd %r29,%r22,%r20
43
44L$loop: ldws,ma 4(%r25),%r22
45 stws,ma %r20,4(%r26)
46 addib,= -1,%r24,L$0003
47 vshd %r22,%r29,%r20
48 ldws,ma 4(%r25),%r29
49 stws,ma %r20,4(%r26)
50 addib,<> -1,%r24,L$loop
51 vshd %r29,%r22,%r20
52
53L$0002: stws,ma %r20,4(%r26)
54 vshd %r0,%r29,%r20
55 bv 0(%r2)
56 stw %r20,0(%r26)
57L$0003: stws,ma %r20,4(%r26)
58L$0004: vshd %r0,%r22,%r20
59 bv 0(%r2)
60 stw %r20,0(%r26)
61
62 .exit
63 .procend