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Annotation of OpenXM_contrib/gmp/mpn/alpha/ev6/nails/README, Revision 1.1

1.1     ! ohara       1: Copyright 2002 Free Software Foundation, Inc.
        !             2:
        !             3: This file is part of the GNU MP Library.
        !             4:
        !             5: The GNU MP Library is free software; you can redistribute it and/or modify it
        !             6: under the terms of the GNU Lesser General Public License as published by the
        !             7: Free Software Foundation; either version 2.1 of the License, or (at your
        !             8: option) any later version.
        !             9:
        !            10: The GNU MP Library is distributed in the hope that it will be useful, but
        !            11: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
        !            12: FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
        !            13: for more details.
        !            14:
        !            15: You should have received a copy of the GNU Lesser General Public License along
        !            16: with the GNU MP Library; see the file COPYING.LIB.  If not, write to the Free
        !            17: Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
        !            18: USA.
        !            19:
        !            20:
        !            21:
        !            22:
        !            23:
        !            24: This directory contains preliminary assembly code for nails-enabled
        !            25: 21264.  The code is not very well optimized.
        !            26:
        !            27: 1. The *mul_* functions use too many registers.  Several temps could be
        !            28:    combined.
        !            29: 2. The *mul_1 functions load from up and rp very early.  The code could be
        !            30:    considerably simplified with later loads.
        !            31: 3. The addmul_1 and submul_1 functions run 1.25 cycles/limb slower than
        !            32:    possible with better U0/U1/L0/L1 scheduling.