FIX BUILD (with GHC 6.2.x): System.Directory.Internals is no more
[ghc-hetmet.git] / rts / gmp / mpn / hppa / hppa1_1 / pa7100 / lshift.s
1 ; HP-PA  __gmpn_lshift --
2 ; This is optimized for the PA7100, where is runs at 3.25 cycles/limb
3
4 ; Copyright (C) 1992, 1994, 2000 Free Software Foundation, Inc.
5
6 ; This file is part of the GNU MP Library.
7
8 ; The GNU MP Library is free software; you can redistribute it and/or modify
9 ; it under the terms of the GNU Lesser General Public License as published by
10 ; the Free Software Foundation; either version 2.1 of the License, or (at your
11 ; option) any later version.
12
13 ; The GNU MP Library is distributed in the hope that it will be useful, but
14 ; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 ; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
16 ; License for more details.
17
18 ; You should have received a copy of the GNU Lesser General Public License
19 ; along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
20 ; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 ; MA 02111-1307, USA.
22
23
24 ; INPUT PARAMETERS
25 ; res_ptr       gr26
26 ; s_ptr         gr25
27 ; size          gr24
28 ; cnt           gr23
29
30         .code
31         .export         __gmpn_lshift
32 __gmpn_lshift
33         .proc
34         .callinfo       frame=64,no_calls
35         .entry
36
37         sh2add          %r24,%r25,%r25
38         sh2add          %r24,%r26,%r26
39         ldws,mb         -4(0,%r25),%r22
40         subi            32,%r23,%r1
41         mtsar           %r1
42         addib,=         -1,%r24,L$0004
43         vshd            %r0,%r22,%r28           ; compute carry out limb
44         ldws,mb         -4(0,%r25),%r29
45         addib,<=        -5,%r24,L$rest
46         vshd            %r22,%r29,%r20
47
48 L$loop  ldws,mb         -4(0,%r25),%r22
49         stws,mb         %r20,-4(0,%r26)
50         vshd            %r29,%r22,%r20
51         ldws,mb         -4(0,%r25),%r29
52         stws,mb         %r20,-4(0,%r26)
53         vshd            %r22,%r29,%r20
54         ldws,mb         -4(0,%r25),%r22
55         stws,mb         %r20,-4(0,%r26)
56         vshd            %r29,%r22,%r20
57         ldws,mb         -4(0,%r25),%r29
58         stws,mb         %r20,-4(0,%r26)
59         addib,>         -4,%r24,L$loop
60         vshd            %r22,%r29,%r20
61
62 L$rest  addib,=         4,%r24,L$end1
63         nop
64 L$eloop ldws,mb         -4(0,%r25),%r22
65         stws,mb         %r20,-4(0,%r26)
66         addib,<=        -1,%r24,L$end2
67         vshd            %r29,%r22,%r20
68         ldws,mb         -4(0,%r25),%r29
69         stws,mb         %r20,-4(0,%r26)
70         addib,>         -1,%r24,L$eloop
71         vshd            %r22,%r29,%r20
72
73 L$end1  stws,mb         %r20,-4(0,%r26)
74         vshd            %r29,%r0,%r20
75         bv              0(%r2)
76         stw             %r20,-4(0,%r26)
77 L$end2  stws,mb         %r20,-4(0,%r26)
78 L$0004  vshd            %r22,%r0,%r20
79         bv              0(%r2)
80         stw             %r20,-4(0,%r26)
81
82         .exit
83         .procend