2012-11-25 17:13:44 -05:00
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; PROLOGUE(mod_1_2)
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; Copyright 2011 The Code Cavern
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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; This file is part of the MPIR Library.
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;
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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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;
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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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;
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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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;
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; mp_limb_t mpn_mod_1_2(mp_ptr, mp_ptr, mp_size_t, mp_ptr)
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; rax rdi rsi rdx rcx
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; rax rcx rdx r8 r9
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%include 'yasm_mac.inc'
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CPU Athlon64
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BITS 64
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%define reg_save_list rsi, rdi, r12, r13, r14
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FRAME_PROC mpn_mod_1_2, 0, reg_save_list
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mov rdi, rcx
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mov rsi, rdx
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mov rdx, r8
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mov r14, [rsi+rdx*8-8]
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mov r13, [rsi+rdx*8-16]
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mov r8, [r9]
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mov r10, [r9+16]
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mov r9, [r9+8]
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mov rcx, rdx
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mov rax, [rsi+rdx*8-24]
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mul r8
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mov r11, [rsi+rcx*8-32]
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xor r12, r12
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sub rcx, 6
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jc .2
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align 16
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.1: add r11, rax
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adc r12, rdx
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mov rax, r9
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mul r13
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add r11, rax
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adc r12, rdx
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mov r13, r11
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mov rax, r10
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mul r14
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add r13, rax
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mov rax, [rsi+rcx*8+8]
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mov r14, r12
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adc r14, rdx
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mul r8
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mov r12d, 0
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mov r11, [rsi+rcx*8+0]
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sub rcx, 2
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jnc .1
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.2: add r11, rax
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adc r12, rdx
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mov rax, r9
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mul r13
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add r11, rax
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adc r12, rdx
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mov r13, r11
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mov rax, r10
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mul r14
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add r13, rax
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mov r14, r12
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adc r14, rdx
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cmp rcx, -2
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je .4
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.3: mov r11, [rsi+rcx*8+8]
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xor r12, r12
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mov rax, r8
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mul r13
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add r11, rax
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adc r12, rdx
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mov r13, r11
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mov rax, r9
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mul r14
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add r13, rax
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mov r14, r12
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adc r14, rdx
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.4: mov rax, r8
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mul r14
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add r13, rax
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adc rdx, 0
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mov [rdi], r13
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mov [rdi+8], rdx
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END_PROC reg_save_list
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end
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