2009-02-19 18:22:30 -05:00
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; AMD64 mpn_com_n
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; Version 1.0.4
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;
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; Copyright 2008 Jason Moxham
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2009-02-22 16:03:08 -05:00
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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2009-02-19 18:22:30 -05:00
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; This file is part of the MPIR Library.
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; The MPIR Library is free software; you can redistribute it and/or modify
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; it under the terms of the GNU Lesser General Public License as published
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; by the Free Software Foundation; either version 2.1 of the License, or (at
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; your option) any later version.
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; The MPIR Library is distributed in the hope that it will be useful, but
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; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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; License for more details.
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; You should have received a copy of the GNU Lesser General Public License
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; along with the MPIR Library; see the file COPYING.LIB. If not, write
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; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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; Boston, MA 02110-1301, USA.
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2009-02-22 16:03:08 -05:00
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;
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2009-02-19 18:22:30 -05:00
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; Calling interface:
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;
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; r9[r9] = r8[r9] + 2 * r8[r9]
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;
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; void __gmpn_com_n(
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; mp_ptr rp, rcx
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; mp_srcptr xp, rdx
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; mp_size_t n, r8
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; )
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;
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; This is an SEH leaf function (no unwind support needed)
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bits 64
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section .text
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global __gmpn_com_n
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%ifdef DLL
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export __gmpn_com_n
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%endif
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__gmpn_com_n:
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mov r8d, r8d
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sub r8, 4
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jc .2
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align 8
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.1: mov rax, [rdx+r8*8+24]
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mov r9, [rdx+r8*8+16]
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not rax
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not r9
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mov [rcx+r8*8+24], rax
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mov [rcx+r8*8+16], r9
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mov rax, [rdx+r8*8+8]
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mov r9, [rdx+r8*8]
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not rax
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not r9
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mov [rcx+r8*8+8], rax
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mov [rcx+r8*8], r9
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sub r8, 4
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jae .1
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.2: add r8, 4
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jz .3
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; Could still have potential cache-bank conflicts in this tail part
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mov rax, [rdx+r8*8-8]
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not rax
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mov [rcx+r8*8-8], rax
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dec r8
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jz .3
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mov rax, [rdx+r8*8-8]
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not rax
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mov [rcx+r8*8-8], rax
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dec r8
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jz .3
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mov rax, [rdx+r8*8-8]
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not rax
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mov [rcx+r8*8-8], rax
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.3: ret
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end
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