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Annotation of OpenXM_contrib/gmp/mpn/pa32/hppa1_1/pa7100/add_n.asm, Revision 1.1

1.1     ! ohara       1: dnl  HP-PA mpn_add_n -- Add two limb vectors of the same length > 0 and store
        !             2: dnl  sum in a third limb vector.  Optimized for the PA7100, where is runs at
        !             3: dnl  4.25 cycles/limb.
        !             4:
        !             5: dnl  Copyright 1992, 1994, 2000, 2001, 2002 Free Software Foundation, Inc.
        !             6:
        !             7: dnl  This file is part of the GNU MP Library.
        !             8:
        !             9: dnl  The GNU MP Library is free software; you can redistribute it and/or modify
        !            10: dnl  it under the terms of the GNU Lesser General Public License as published
        !            11: dnl  by the Free Software Foundation; either version 2.1 of the License, or (at
        !            12: dnl  your option) any later version.
        !            13:
        !            14: dnl  The GNU MP Library is distributed in the hope that it will be useful, but
        !            15: dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            16: dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
        !            17: dnl  License for more details.
        !            18:
        !            19: dnl  You should have received a copy of the GNU Lesser General Public License
        !            20: dnl  along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            21: dnl  the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            22: dnl  MA 02111-1307, USA.
        !            23:
        !            24: include(`../config.m4')
        !            25:
        !            26: C INPUT PARAMETERS
        !            27: C res_ptr      r26
        !            28: C s1_ptr       r25
        !            29: C s2_ptr       r24
        !            30: C size         r23
        !            31:
        !            32: ASM_START()
        !            33: PROLOGUE(mpn_add_n)
        !            34:        ldws,ma         4(0,%r25),%r20
        !            35:        ldws,ma         4(0,%r24),%r19
        !            36:
        !            37:        addib,<=        -5,%r23,L(rest)
        !            38:         add            %r20,%r19,%r28  C add first limbs ignoring cy
        !            39:
        !            40:        .label  L(loop)
        !            41:        ldws,ma         4(0,%r25),%r20
        !            42:        ldws,ma         4(0,%r24),%r19
        !            43:        stws,ma         %r28,4(0,%r26)
        !            44:        addc            %r20,%r19,%r28
        !            45:        ldws,ma         4(0,%r25),%r20
        !            46:        ldws,ma         4(0,%r24),%r19
        !            47:        stws,ma         %r28,4(0,%r26)
        !            48:        addc            %r20,%r19,%r28
        !            49:        ldws,ma         4(0,%r25),%r20
        !            50:        ldws,ma         4(0,%r24),%r19
        !            51:        stws,ma         %r28,4(0,%r26)
        !            52:        addc            %r20,%r19,%r28
        !            53:        ldws,ma         4(0,%r25),%r20
        !            54:        ldws,ma         4(0,%r24),%r19
        !            55:        stws,ma         %r28,4(0,%r26)
        !            56:        addib,>         -4,%r23,L(loop)
        !            57:        addc            %r20,%r19,%r28
        !            58:
        !            59:        .label  L(rest)
        !            60:        addib,=         4,%r23,L(end)
        !            61:        nop
        !            62:
        !            63:        .label  L(eloop)
        !            64:        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:        .label  L(end)
        !            71:        stws            %r28,0(0,%r26)
        !            72:        bv              0(%r2)
        !            73:         addc           %r0,%r0,%r28
        !            74: EPILOGUE()