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Annotation of OpenXM_contrib/gmp/mpn/x86/pentium/mul_1.asm, Revision 1.1.1.1

1.1       maekawa     1: dnl  Intel Pentium mpn_mul_1 -- mpn by limb multiplication.
                      2: dnl
                      3: dnl  P5: 13.0 cycles/limb
                      4:
                      5: dnl  Copyright (C) 1992, 1994, 1996, 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: C mp_limb_t mpn_mul_1 (mp_ptr dst, mp_srcptr src, mp_size_t size,
                     30: C                      mp_limb_t multiplier);
                     31:
                     32: defframe(PARAM_MULTIPLIER,16)
                     33: defframe(PARAM_SIZE,      12)
                     34: defframe(PARAM_SRC,       8)
                     35: defframe(PARAM_DST,       4)
                     36:
                     37:        .text
                     38:        ALIGN(8)
                     39: PROLOGUE(mpn_mul_1)
                     40:
                     41:        pushl   %edi
                     42:        pushl   %esi
                     43:        pushl   %ebx
                     44:        pushl   %ebp
                     45: deflit(`FRAME',16)
                     46:
                     47:        movl    PARAM_DST, %edi
                     48:        movl    PARAM_SRC, %esi
                     49:        movl    PARAM_SIZE, %ecx
                     50:        movl    PARAM_MULTIPLIER, %ebp
                     51:
                     52:        leal    (%edi,%ecx,4), %edi
                     53:        leal    (%esi,%ecx,4), %esi
                     54:        negl    %ecx
                     55:        xorl    %ebx, %ebx
                     56:        ALIGN(8)
                     57:
                     58: L(oop):        adcl    $0, %ebx
                     59:        movl    (%esi,%ecx,4), %eax
                     60:
                     61:        mull    %ebp
                     62:
                     63:        addl    %eax, %ebx
                     64:
                     65:        movl    %ebx, (%edi,%ecx,4)
                     66:        incl    %ecx
                     67:
                     68:        movl    %edx, %ebx
                     69:        jnz     L(oop)
                     70:
                     71:        adcl    $0, %ebx
                     72:        movl    %ebx, %eax
                     73:        popl    %ebp
                     74:        popl    %ebx
                     75:        popl    %esi
                     76:        popl    %edi
                     77:        ret
                     78:
                     79: EPILOGUE()