2013-08-04 18:17:37 -04:00
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; PROLOGUE(mpn_sub_err1_n)
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2012-11-25 17:13:44 -05:00
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; Copyright (C) 2009, David Harvey
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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; All rights reserved.
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;
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; Redistribution and use in source and binary forms, with or without
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; modification, are permitted provided that the following conditions are
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; met:
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; 1. Redistributions of source code must retain the above copyright notice,
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; this list of conditions and the following disclaimer.
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;
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; 2. Redistributions in binary form must reproduce the above copyright
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; notice, this list of conditions and the following disclaimer in the
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; documentation and/or other materials provided with the distribution.
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;
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; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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; ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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; PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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; HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;
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; mp_limb_t mpn_add_err1_n(mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_size_t, mp_limb_t)
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; mp_limb_t mpn_sub_err1_n(mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_size_t, mp_limb_t)
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; rax rdi rsi rdx rcx r8 r9 8(rsp)
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; rax rcx rdx r8 r9 [rsp+40] [rsp+48] [rsp+56]
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%include "yasm_mac.inc"
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%define reg_save_list rbx, rsi, rdi, rbp, r12
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%macro fun 2
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xalign 16
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FRAME_PROC %1, 0, reg_save_list
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mov rax, qword [rsp+stack_use+48]
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lea rdi, [rcx+rax*8]
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lea rsi, [rdx+rax*8]
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lea rdx, [r8+rax*8]
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mov rcx, r9
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mov r9, rax
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mov r8, [rsp+stack_use+40]
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mov rax, [rsp+stack_use+56]
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xor rbx, rbx
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xor rbp, rbp
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test r9, 1
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jnz %%2
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%%1:lea r8, [r8+r9*8-8]
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neg r9
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jmp %%3
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xalign 16
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%%2:lea r8, [r8+r9*8-16]
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neg r9
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shr rax, 1
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mov r12, [rsi+r9*8]
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%2 r12, [rdx+r9*8]
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cmovc rbx, [r8+8]
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mov [rdi+r9*8], r12
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setc al
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inc r9
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jz %%4
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xalign 16
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%%3:mov r12, [rsi+r9*8]
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shr rax, 1
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%2 r12, [rdx+r9*8]
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mov r11, 0
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mov [rdi+r9*8], r12
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mov r10, 0
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mov r12, [rsi+r9*8+8]
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cmovc r10, [r8]
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%2 r12, [rdx+r9*8+8]
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cmovc r11, [r8-8]
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setc al
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add rbx, r10
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adc rbp, 0
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add rbx, r11
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mov [rdi+r9*8+8], r12
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adc rbp, 0
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add r9, 2
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lea r8, [r8-16]
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jnz %%3
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%%4:mov [rcx], rbx
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mov [rcx+8], rbp
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END_PROC reg_save_list
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%endmacro
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CPU Athlon64
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BITS 64
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; global __gmpn_sub_err1_n
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fun mpn_sub_err1_n, sbb
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end
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