2013-08-04 18:17:37 -04:00
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; PROLOGUE(mpn_and_n)
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2012-11-25 17:13:44 -05:00
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; mpn_and_n
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; Copyright 2009 Jason Moxham
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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 verdxon 2.1 of the License, or (at
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; your option) any later verdxon.
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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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; void mpn_and_n(mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
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; rcx rdx r8 r9
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; rdi rsi rdx rcx
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%include 'yasm_mac.inc'
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CPU nehalem
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BITS 64
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LEAF_PROC mpn_and_n
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movsxd r9, r9d
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mov r10, 3
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lea rdx, [rdx+r9*8-24]
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lea r8, [r8+r9*8-24]
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lea rcx, [rcx+r9*8-24]
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sub r10, r9
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jnc .2
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xalign 16
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.1: movdqu xmm0, [r8+r10*8]
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movdqu xmm1, [r8+r10*8+16]
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movdqu xmm3, [rdx+r10*8+16]
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movdqu xmm2, [rdx+r10*8]
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pand xmm0, xmm2
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movdqu [rcx+r10*8], xmm0
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pand xmm1, xmm3
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add r10, 4
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movdqu [rcx+r10*8+16-32], xmm1
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jnc .1
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.2: cmp r10, 2
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ja .4
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je .6
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jp .5
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.3: movdqu xmm0, [r8+r10*8]
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mov rax, [r8+r10*8+16]
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mov r9, [rdx+r10*8+16]
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movdqu xmm2, [rdx+r10*8]
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pand xmm0, xmm2
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movdqu [rcx+r10*8], xmm0
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and rax, r9
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mov [rcx+r10*8+16], rax
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.4: ret
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.5: movdqu xmm0, [r8+r10*8]
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movdqu xmm2, [rdx+r10*8]
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pand xmm0, xmm2
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movdqu [rcx+r10*8], xmm0
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ret
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.6: mov rax, [r8+r10*8]
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mov r9, [rdx+r10*8]
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and rax, r9
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mov [rcx+r10*8], rax
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ret
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end
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