sysdeps/hppa/lshift.S

   1 ;! HP-PA  __mpn_lshift --
   2
   3 ;! Copyright (C) 1992-2019 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.  If not, see
  19 ;! <https://www.gnu.org/licenses/>.
  20
  21
  22 ;! INPUT PARAMETERS
  23 ;! res_ptr      gr26
  24 ;! s_ptr        gr25
  25 ;! size         gr24
  26 ;! cnt          gr23
  27
  28         .text
  29         .export         __mpn_lshift
  30 __mpn_lshift:
  31         .proc
  32         .callinfo       frame=64,no_calls
  33         .entry
  34
  35         sh2add          %r24,%r25,%r25
  36         sh2add          %r24,%r26,%r26
  37         ldws,mb         -4(%r25),%r22
  38         subi            32,%r23,%r1
  39         mtsar           %r1
  40         addib,=         -1,%r24,L$0004
  41         vshd            %r0,%r22,%r28           ;! compute carry out limb
  42         ldws,mb         -4(%r25),%r29
  43         addib,=         -1,%r24,L$0002
  44         vshd            %r22,%r29,%r20
  45
  46 L$loop: ldws,mb         -4(%r25),%r22
  47         stws,mb         %r20,-4(%r26)
  48         addib,=         -1,%r24,L$0003
  49         vshd            %r29,%r22,%r20
  50         ldws,mb         -4(%r25),%r29
  51         stws,mb         %r20,-4(%r26)
  52         addib,<>        -1,%r24,L$loop
  53         vshd            %r22,%r29,%r20
  54
  55 L$0002: stws,mb         %r20,-4(%r26)
  56         vshd            %r29,%r0,%r20
  57         bv              0(%r2)
  58         stw             %r20,-4(%r26)
  59 L$0003: stws,mb         %r20,-4(%r26)
  60 L$0004: vshd            %r22,%r0,%r20
  61         bv              0(%r2)
  62         stw             %r20,-4(%r26)
  63
  64         .exit
  65         .procend