release/src/router/mysql/strings/strxmov-sparc.s

   1 ! Copyright (c) 2000, 2002, 2006 MySQL AB
   2 !
   3 ! This library is free software; you can redistribute it and/or
   4 ! modify it under the terms of the GNU Library General Public
   5 ! License as published by the Free Software Foundation; version 2
   6 ! of the License.
   7 !
   8 ! This library is distributed in the hope that it will be useful,
   9 ! but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 ! Library General Public License for more details.
  12 !
  13 ! You should have received a copy of the GNU Library General Public
  14 ! License along with this library; if not, write to the Free
  15 ! Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  16 ! MA 02110-1301, USA
  17
  18 !
  19 ! Note that this function only works on 32 bit sparc systems
  20 ! on 64 bits the offsets to %sp are different !
  21
  22         .file   "strxmov-sparc.s"
  23 .section        ".text"
  24         .align 4
  25         .global strxmov
  26         .type    strxmov,#function
  27         .proc   0102
  28
  29 strxmov:
  30         st      %o2, [%sp+76]           ! store 3rd param before other params
  31         st      %o3, [%sp+80]           ! store 4th param "   "
  32         cmp     %o1, 0                  ! check if no from args
  33         st      %o4, [%sp+84]           ! store 5th param
  34         be      .end
  35         st      %o5, [%sp+88]           ! store last
  36         add     %sp, 76, %o4            ! put pointer to 3rd arg
  37 .loop:
  38         ldub    [%o1], %o5              ! set values of src (o1)
  39         add     %o1, 1, %o1             ! inc src
  40         stb     %o5, [%o0]              !   and dst (o2) equal
  41         cmp     %o5, 0                  ! second while cmp
  42         bne,a   .loop
  43         add     %o0, 1, %o0             ! inc dst
  44         ld      [%o4], %o1              ! get next param
  45         cmp     %o1, 0                  ! check if last param
  46         bne     .loop
  47         add     %o4, 4, %o4             ! advance to next param
  48 .end:
  49         retl
  50         stb     %g0, [%o0]
  51 .strxmov_end:
  52         .size    strxmov,.strxmov_end-strxmov
  53         .ident  "Matt Wagner & Monty"
  54