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Annotation of OpenXM_contrib/gmp/mpn/z8000/add_n.s, Revision 1.1

1.1     ! maekawa     1: ! Z8000 __mpn_add_n -- Add two limb vectors of equal, non-zero length.
        !             2:
        !             3: ! Copyright (C) 1993, 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 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      r7
        !            25: ! s1_ptr       r6
        !            26: ! s2_ptr       r5
        !            27: ! size         r4
        !            28:
        !            29: ! If we are really crazy, we can use push to write a few result words
        !            30: ! backwards, using push just because it is faster than reg+disp.  We'd
        !            31: ! then add 2x the number of words written to r7...
        !            32:
        !            33:        unseg
        !            34:        .text
        !            35:        even
        !            36:        global ___mpn_add_n
        !            37: ___mpn_add_n:
        !            38:        pop     r0,@r6
        !            39:        pop     r1,@r5
        !            40:        add     r0,r1
        !            41:        ld      @r7,r0
        !            42:        dec     r4
        !            43:        jr      eq,Lend
        !            44: Loop:  pop     r0,@r6
        !            45:        pop     r1,@r5
        !            46:        adc     r0,r1
        !            47:        inc     r7,#2
        !            48:        ld      @r7,r0
        !            49:        dec     r4
        !            50:        jr      ne,Loop
        !            51: Lend:  ld      r2,r4           ! use 0 already in r4
        !            52:        adc     r2,r2
        !            53:        ret     t