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Annotation of OpenXM_contrib/gmp/mpn/x86/aorsmul_1.asm, Revision 1.1

1.1     ! maekawa     1: dnl  x86 __gmpn_addmul_1 (for 386 and 486) -- Multiply a limb vector with a
        !             2: dnl  limb and add the result to a second limb vector.
        !             3:
        !             4:
        !             5: dnl  Copyright (C) 1992, 1994, 1997, 1999, 2000 Free Software Foundation,
        !             6: dnl  Inc.
        !             7: dnl
        !             8: dnl  This file is part of the GNU MP Library.
        !             9: dnl
        !            10: dnl  The GNU MP Library is free software; you can redistribute it and/or
        !            11: dnl  modify it under the terms of the GNU Lesser General Public License as
        !            12: dnl  published by the Free Software Foundation; either version 2.1 of the
        !            13: dnl  License, or (at your option) any later version.
        !            14: dnl
        !            15: dnl  The GNU MP Library is distributed in the hope that it will be useful,
        !            16: dnl  but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            17: dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
        !            18: dnl  Lesser General Public License for more details.
        !            19: dnl
        !            20: dnl  You should have received a copy of the GNU Lesser General Public
        !            21: dnl  License along with the GNU MP Library; see the file COPYING.LIB.  If
        !            22: dnl  not, write to the Free Software Foundation, Inc., 59 Temple Place -
        !            23: dnl  Suite 330, Boston, MA 02111-1307, USA.
        !            24:
        !            25:
        !            26: include(`../config.m4')
        !            27:
        !            28:
        !            29: ifdef(`OPERATION_addmul_1',`
        !            30:       define(M4_inst,        addl)
        !            31:       define(M4_function_1,  mpn_addmul_1)
        !            32:
        !            33: ',`ifdef(`OPERATION_submul_1',`
        !            34:       define(M4_inst,        subl)
        !            35:       define(M4_function_1,  mpn_submul_1)
        !            36:
        !            37: ',`m4_error(`Need OPERATION_addmul_1 or OPERATION_submul_1
        !            38: ')')')
        !            39:
        !            40: MULFUNC_PROLOGUE(mpn_addmul_1 mpn_submul_1)
        !            41:
        !            42:
        !            43: C mp_limb_t M4_function_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,
        !            44: C                          mp_limb_t mult);
        !            45:
        !            46: define(PARAM_MULTIPLIER, `FRAME+16(%esp)')
        !            47: define(PARAM_SIZE,       `FRAME+12(%esp)')
        !            48: define(PARAM_SRC,        `FRAME+8(%esp)')
        !            49: define(PARAM_DST,        `FRAME+4(%esp)')
        !            50:
        !            51:        TEXT
        !            52:        ALIGN(8)
        !            53:
        !            54: PROLOGUE(M4_function_1)
        !            55: deflit(`FRAME',0)
        !            56:
        !            57:        pushl   %edi
        !            58:        pushl   %esi
        !            59:        pushl   %ebx
        !            60:        pushl   %ebp
        !            61: deflit(`FRAME',16)
        !            62:
        !            63:        movl    PARAM_DST,%edi
        !            64:        movl    PARAM_SRC,%esi
        !            65:        movl    PARAM_SIZE,%ecx
        !            66:
        !            67:        xorl    %ebx,%ebx
        !            68:        andl    $3,%ecx
        !            69:        jz      L(end0)
        !            70:
        !            71: L(oop0):
        !            72:        movl    (%esi),%eax
        !            73:        mull    PARAM_MULTIPLIER
        !            74:        leal    4(%esi),%esi
        !            75:        addl    %ebx,%eax
        !            76:        movl    $0,%ebx
        !            77:        adcl    %ebx,%edx
        !            78:        M4_inst %eax,(%edi)
        !            79:        adcl    %edx,%ebx       C propagate carry into cylimb
        !            80:
        !            81:        leal    4(%edi),%edi
        !            82:        decl    %ecx
        !            83:        jnz     L(oop0)
        !            84:
        !            85: L(end0):
        !            86:        movl    PARAM_SIZE,%ecx
        !            87:        shrl    $2,%ecx
        !            88:        jz      L(end)
        !            89:
        !            90:        ALIGN(8)
        !            91: L(oop):        movl    (%esi),%eax
        !            92:        mull    PARAM_MULTIPLIER
        !            93:        addl    %eax,%ebx
        !            94:        movl    $0,%ebp
        !            95:        adcl    %edx,%ebp
        !            96:
        !            97:        movl    4(%esi),%eax
        !            98:        mull    PARAM_MULTIPLIER
        !            99:        M4_inst %ebx,(%edi)
        !           100:        adcl    %eax,%ebp       C new lo + cylimb
        !           101:        movl    $0,%ebx
        !           102:        adcl    %edx,%ebx
        !           103:
        !           104:        movl    8(%esi),%eax
        !           105:        mull    PARAM_MULTIPLIER
        !           106:        M4_inst %ebp,4(%edi)
        !           107:        adcl    %eax,%ebx       C new lo + cylimb
        !           108:        movl    $0,%ebp
        !           109:        adcl    %edx,%ebp
        !           110:
        !           111:        movl    12(%esi),%eax
        !           112:        mull    PARAM_MULTIPLIER
        !           113:        M4_inst %ebx,8(%edi)
        !           114:        adcl    %eax,%ebp       C new lo + cylimb
        !           115:        movl    $0,%ebx
        !           116:        adcl    %edx,%ebx
        !           117:
        !           118:        M4_inst %ebp,12(%edi)
        !           119:        adcl    $0,%ebx         C propagate carry into cylimb
        !           120:
        !           121:        leal    16(%esi),%esi
        !           122:        leal    16(%edi),%edi
        !           123:        decl    %ecx
        !           124:        jnz     L(oop)
        !           125:
        !           126: L(end):        movl    %ebx,%eax
        !           127:
        !           128:        popl    %ebp
        !           129:        popl    %ebx
        !           130:        popl    %esi
        !           131:        popl    %edi
        !           132:        ret
        !           133:
        !           134: EPILOGUE()