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Annotation of OpenXM_contrib/gmp/mpn/hppa/hppa1_1/pa7100/add_n.s, Revision 1.1

1.1     ! maekawa     1: ; HP-PA  __mpn_add_n -- Add two limb vectors of the same length > 0 and store
        !             2: ; sum in a third limb vector.
        !             3: ; This is optimized for the PA7100, where is runs at 4.25 cycles/limb
        !             4:
        !             5: ; Copyright (C) 1992, 1994 Free Software Foundation, Inc.
        !             6:
        !             7: ; This file is part of the GNU MP Library.
        !             8:
        !             9: ; The GNU MP Library is free software; you can redistribute it and/or modify
        !            10: ; it under the terms of the GNU Library General Public License as published by
        !            11: ; the Free Software Foundation; either version 2 of the License, or (at your
        !            12: ; option) any later version.
        !            13:
        !            14: ; The GNU MP Library is distributed in the hope that it will be useful, but
        !            15: ; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            16: ; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
        !            17: ; License for more details.
        !            18:
        !            19: ; You should have received a copy of the GNU Library General Public License
        !            20: ; along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            21: ; the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            22: ; MA 02111-1307, USA.
        !            23:
        !            24:
        !            25: ; INPUT PARAMETERS
        !            26: ; res_ptr      gr26
        !            27: ; s1_ptr       gr25
        !            28: ; s2_ptr       gr24
        !            29: ; size         gr23
        !            30:
        !            31:        .code
        !            32:        .export         __mpn_add_n
        !            33: __mpn_add_n
        !            34:        .proc
        !            35:        .callinfo       frame=0,no_calls
        !            36:        .entry
        !            37:
        !            38:        ldws,ma         4(0,%r25),%r20
        !            39:        ldws,ma         4(0,%r24),%r19
        !            40:
        !            41:        addib,<=        -5,%r23,L$rest
        !            42:         add            %r20,%r19,%r28  ; add first limbs ignoring cy
        !            43:
        !            44: L$loop ldws,ma         4(0,%r25),%r20
        !            45:        ldws,ma         4(0,%r24),%r19
        !            46:        stws,ma         %r28,4(0,%r26)
        !            47:        addc            %r20,%r19,%r28
        !            48:        ldws,ma         4(0,%r25),%r20
        !            49:        ldws,ma         4(0,%r24),%r19
        !            50:        stws,ma         %r28,4(0,%r26)
        !            51:        addc            %r20,%r19,%r28
        !            52:        ldws,ma         4(0,%r25),%r20
        !            53:        ldws,ma         4(0,%r24),%r19
        !            54:        stws,ma         %r28,4(0,%r26)
        !            55:        addc            %r20,%r19,%r28
        !            56:        ldws,ma         4(0,%r25),%r20
        !            57:        ldws,ma         4(0,%r24),%r19
        !            58:        stws,ma         %r28,4(0,%r26)
        !            59:        addib,>         -4,%r23,L$loop
        !            60:        addc            %r20,%r19,%r28
        !            61:
        !            62: L$rest addib,=         4,%r23,L$end
        !            63:        nop
        !            64: L$eloop        ldws,ma         4(0,%r25),%r20
        !            65:        ldws,ma         4(0,%r24),%r19
        !            66:        stws,ma         %r28,4(0,%r26)
        !            67:        addib,>         -1,%r23,L$eloop
        !            68:        addc            %r20,%r19,%r28
        !            69:
        !            70: L$end  stws            %r28,0(0,%r26)
        !            71:        bv              0(%r2)
        !            72:         addc           %r0,%r0,%r28
        !            73:
        !            74:        .exit
        !            75:        .procend