2013-08-04 18:17:37 -04:00
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; PROLOGUE(mpn_add_n)
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2012-11-25 17:13:44 -05:00
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; Version 1.0.3.
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;
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; Copyright 2008 Jason Moxham
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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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; 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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;
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; mp_limb_t mpn_add_n(mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
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; mp_limb_t mpn_add_nc(mp_ptr, mp_srcptr, mp_srcptr, mp_size_t, mp_limb_t)
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; rax rdi rsi rdx rcx r8
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; rax rcx rdx r8 r9 [rsp+40]
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%include "yasm_mac.inc"
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%define TR2 r10
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%define TR4 r10
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CPU Core2
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BITS 64
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LEAF_PROC mpn_add_nc
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mov r10, [rsp+0x28]
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jmp mpn_add_entry
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LEAF_PROC mpn_add_n
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xor r10, r10
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mpn_add_entry:
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mov rax, r9
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mov r9, rcx
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mov rcx, rax
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and rax, 3
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sub rcx, rax
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lea r9, [r9+rcx*8]
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lea rdx, [rdx+rcx*8]
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lea r8, [r8+rcx*8]
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neg rcx
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lea rcx, [r10+rcx*2]
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sar rcx, 1
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jz .2
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xalign 16
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.1: mov r10, [rdx+rcx*8]
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mov r11, [rdx+rcx*8+16]
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adc r10, [r8+rcx*8]
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mov [r9+rcx*8], r10
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mov TR2, [rdx+rcx*8+8]
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adc TR2, [r8+rcx*8+8]
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mov [r9+rcx*8+8], TR2
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lea rcx, [rcx+4]
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mov TR4, [rdx+rcx*8-8]
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adc r11, [r8+rcx*8-16]
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adc TR4, [r8+rcx*8-8]
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mov [r9+rcx*8-16], r11
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mov [r9+rcx*8-8], TR4
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jrcxz .2
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jmp .1
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.2: sbb rcx, rcx
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.3: cmp rax, 2
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ja .6
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jz .7
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jp .5
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.4: sub rax, rcx
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ret
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xalign 16
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.5: add rcx, rcx
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mov r10, [rdx]
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adc r10, [r8]
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mov [r9], r10
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sbb rax, rax
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neg rax
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ret
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xalign 16
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.6: add rcx, rcx
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mov r10, [rdx]
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mov r11, [rdx+16]
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adc r10, [r8]
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mov [r9], r10
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mov TR2, [rdx+8]
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adc TR2, [r8+8]
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mov [r9+8], TR2
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adc r11, [r8+16]
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mov [r9+16], r11
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sbb rax, rax
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neg rax
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ret
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xalign 16
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.7: add rcx, rcx
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mov r10, [rdx]
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adc r10, [r8]
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mov [r9], r10
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mov TR2, [rdx+8]
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adc TR2, [r8+8]
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mov [r9+8], TR2
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sbb rax, rax
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neg rax
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ret
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end
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