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Annotation of OpenXM_contrib/gmp/mpn/mips2/lshift.s, Revision 1.1

1.1     ! maekawa     1:  # MIPS2 __mpn_lshift --
        !             2:
        !             3:  # Copyright (C) 1995 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 Library General Public License as published by
        !             9:  # the Free Software Foundation; either version 2 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 Library General Public
        !            15:  # License for more details.
        !            16:
        !            17:  # You should have received a copy of the GNU Library 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     $4
        !            25:  # src_ptr     $5
        !            26:  # size                $6
        !            27:  # cnt         $7
        !            28:
        !            29:        .text
        !            30:        .align  2
        !            31:        .globl  __mpn_lshift
        !            32:        .ent    __mpn_lshift
        !            33: __mpn_lshift:
        !            34:        .set    noreorder
        !            35:        .set    nomacro
        !            36:
        !            37:        sll     $2,$6,2
        !            38:        addu    $5,$5,$2        # make r5 point at end of src
        !            39:        lw      $10,-4($5)      # load first limb
        !            40:        subu    $13,$0,$7
        !            41:        addu    $4,$4,$2        # make r4 point at end of res
        !            42:        addiu   $6,$6,-1
        !            43:        and     $9,$6,4-1       # number of limbs in first loop
        !            44:        beq     $9,$0,.L0       # if multiple of 4 limbs, skip first loop
        !            45:         srl    $2,$10,$13      # compute function result
        !            46:
        !            47:        subu    $6,$6,$9
        !            48:
        !            49: .Loop0:        lw      $3,-8($5)
        !            50:        addiu   $4,$4,-4
        !            51:        addiu   $5,$5,-4
        !            52:        addiu   $9,$9,-1
        !            53:        sll     $11,$10,$7
        !            54:        srl     $12,$3,$13
        !            55:        move    $10,$3
        !            56:        or      $8,$11,$12
        !            57:        bne     $9,$0,.Loop0
        !            58:         sw     $8,0($4)
        !            59:
        !            60: .L0:   beq     $6,$0,.Lend
        !            61:         nop
        !            62:
        !            63: .Loop: lw      $3,-8($5)
        !            64:        addiu   $4,$4,-16
        !            65:        addiu   $6,$6,-4
        !            66:        sll     $11,$10,$7
        !            67:        srl     $12,$3,$13
        !            68:
        !            69:        lw      $10,-12($5)
        !            70:        sll     $14,$3,$7
        !            71:        or      $8,$11,$12
        !            72:        sw      $8,12($4)
        !            73:        srl     $9,$10,$13
        !            74:
        !            75:        lw      $3,-16($5)
        !            76:        sll     $11,$10,$7
        !            77:        or      $8,$14,$9
        !            78:        sw      $8,8($4)
        !            79:        srl     $12,$3,$13
        !            80:
        !            81:        lw      $10,-20($5)
        !            82:        sll     $14,$3,$7
        !            83:        or      $8,$11,$12
        !            84:        sw      $8,4($4)
        !            85:        srl     $9,$10,$13
        !            86:
        !            87:        addiu   $5,$5,-16
        !            88:        or      $8,$14,$9
        !            89:        bgtz    $6,.Loop
        !            90:         sw     $8,0($4)
        !            91:
        !            92: .Lend: sll     $8,$10,$7
        !            93:        j       $31
        !            94:        sw      $8,-4($4)
        !            95:        .end    __mpn_lshift