New functions mpn_sumdiff for core2/penryn/nehalem , or rather faster to do separate add and sub
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; core2 mpn_sumdiff_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 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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%include 'yasm_mac.inc'
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; (rdi, r8) = (rdx, r8) + (rcx, r8) (rsi, r8) = (rdx, r8) - (rcx, r8)
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; return 2*add_carry+sub_borrow
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BITS 64
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GLOBAL_FUNC mpn_sumdiff_n
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lea rsi, [rsi+r8*8]
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lea rdx, [rdx+r8*8]
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lea rdi, [rdi+r8*8]
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lea rcx, [rcx+r8*8]
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neg r8
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xor r9, r9
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xor r10, r10
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test r8, 3
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jz next
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lp1:
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mov rax, [rdx+r8*8]
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mov r11, rax
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add r9, 1
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adc rax, [rcx+r8*8]
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sbb r9, r9
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add r10, 1
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sbb r11, [rcx+r8*8]
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sbb r10, r10
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mov [rdi+r8*8], rax
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mov [rsi+r8*8], r11
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add r8, 1
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test r8, 3
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jnz lp1
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next:
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cmp r8, 0
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jz skiploop
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mov [rsp-8], rbx
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mov [rsp-16], rbp
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mov [rsp-24], r12
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mov [rsp-32], r13
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mov [rsp-40], r14
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mov [rsp-48], r15
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align 16
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loop1:
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mov rax, [rdx+r8*8]
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mov rbx, [rdx+r8*8+8]
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mov rbp, [rdx+r8*8+16]
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mov r12, [rdx+r8*8+24]
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mov r11, rax
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mov r13, rbx
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mov r14, rbp
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mov r15, r12
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add r9, 1
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adc rax, [rcx+r8*8]
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adc rbx, [rcx+r8*8+8]
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adc rbp, [rcx+r8*8+16]
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adc r12, [rcx+r8*8+24]
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sbb r9, r9
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add r10, 1
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sbb r11, [rcx+r8*8]
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sbb r13, [rcx+r8*8+8]
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sbb r14, [rcx+r8*8+16]
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sbb r15, [rcx+r8*8+24]
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sbb r10, r10
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mov [rdi+r8*8], rax
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mov [rdi+r8*8+8], rbx
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mov [rdi+r8*8+16], rbp
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mov [rdi+r8*8+24], r12
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mov [rsi+r8*8], r11
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mov [rsi+r8*8+8], r13
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mov [rsi+r8*8+16], r14
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mov [rsi+r8*8+24], r15
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add r8, 4
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jnz loop1
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mov rbx, [rsp-8]
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mov rbp, [rsp-16]
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mov r12, [rsp-24]
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mov r13, [rsp-32]
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mov r14, [rsp-40]
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mov r15, [rsp-48]
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skiploop:
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lea rax, [r10+r9*2]
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neg rax
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ret
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@ -1,99 +0,0 @@
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; core2 mpn_sumdiff_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 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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%include 'yasm_mac.inc'
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; (rdi, r8) = (rdx, r8) + (rcx, r8) (rsi, r8) = (rdx, r8) - (rcx, r8)
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; return 2*add_carry+sub_borrow
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BITS 64
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GLOBAL_FUNC mpn_sumdiff_n
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lea rsi, [rsi+r8*8]
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lea rdx, [rdx+r8*8]
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lea rdi, [rdi+r8*8]
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lea rcx, [rcx+r8*8]
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neg r8
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xor r9, r9
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xor r10, r10
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test r8, 3
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jz next
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lp1:
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mov rax, [rdx+r8*8]
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mov r11, rax
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add r9, 1
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adc rax, [rcx+r8*8]
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sbb r9, r9
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add r10, 1
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sbb r11, [rcx+r8*8]
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sbb r10, r10
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mov [rdi+r8*8], rax
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mov [rsi+r8*8], r11
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add r8, 1
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test r8, 3
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jnz lp1
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next:
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cmp r8, 0
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jz skiploop
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mov [rsp-8], rbx
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mov [rsp-16], rbp
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mov [rsp-24], r12
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mov [rsp-32], r13
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mov [rsp-40], r14
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mov [rsp-48], r15
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align 16
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loop1:
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mov rax, [rdx+r8*8]
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mov rbx, [rdx+r8*8+8]
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mov rbp, [rdx+r8*8+16]
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mov r12, [rdx+r8*8+24]
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mov r11, rax
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mov r13, rbx
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mov r14, rbp
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mov r15, r12
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add r9, 1
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adc rax, [rcx+r8*8]
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adc rbx, [rcx+r8*8+8]
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adc rbp, [rcx+r8*8+16]
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adc r12, [rcx+r8*8+24]
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sbb r9, r9
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add r10, 1
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sbb r11, [rcx+r8*8]
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sbb r13, [rcx+r8*8+8]
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sbb r14, [rcx+r8*8+16]
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sbb r15, [rcx+r8*8+24]
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sbb r10, r10
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mov [rdi+r8*8], rax
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mov [rdi+r8*8+8], rbx
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mov [rdi+r8*8+16], rbp
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mov [rdi+r8*8+24], r12
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mov [rsi+r8*8], r11
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mov [rsi+r8*8+8], r13
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mov [rsi+r8*8+16], r14
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mov [rsi+r8*8+24], r15
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add r8, 4
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jnz loop1
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mov rbx, [rsp-8]
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mov rbp, [rsp-16]
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mov r12, [rsp-24]
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mov r13, [rsp-32]
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mov r14, [rsp-40]
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mov r15, [rsp-48]
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skiploop:
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lea rax, [r10+r9*2]
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neg rax
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ret
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