2009-02-27 09:24:25 -05:00
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; Core2 mpn_sumdiff_n
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; Verdxon 1.0.4
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;
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; Copyright 2008 Jason Moxham
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;
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; Windows Converdxon 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 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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;
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; Calling interface (GCC):
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;
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; rcx[r10] = r8[r10] + r9[r10]
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; rdx[r10] = r8[r10] - r9[r10]
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;
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; return 2 * add_carry + sub_borrow
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;
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; mp_limb_t __gmpn_sumdiff_n(
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; mp_ptr dps, rcx
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; mp_ptr dpd, rdx
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2009-03-02 15:03:30 -05:00
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; mp_srcptr src1, r8
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; mp_size_t src2, r9
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; mp_size_t n r10d
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2009-02-27 09:24:25 -05:00
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; )
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;
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; This is an SEH frame function
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2009-03-07 10:00:35 -05:00
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%include "..\yasm_mac.inc"
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2009-02-27 09:24:25 -05:00
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%define reg_save_list rsi, rdi, r12, r13, r14, r15, rbx, rbp
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2009-03-07 10:00:35 -05:00
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BITS 64
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FRAME_PROC mpn_sumdiff_n, 0, reg_save_list
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2009-02-27 09:24:25 -05:00
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mov r10d, dword [rsp+stack_use+40]
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lea rdx, [rdx+r10*8]
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lea r8, [r8+r10*8]
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lea rcx, [rcx+r10*8]
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lea r9, [r9+r10*8]
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neg r10
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xor r12, r12
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xor r11, r11
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test r10, 3
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jz .2
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.1: mov rax, [r8+r10*8]
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mov r13, rax
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add r12, 1
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adc rax, [r9+r10*8]
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sbb r12, r12
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add r11, 1
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sbb r13, [r9+r10*8]
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sbb r11, r11
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mov [rcx+r10*8], rax
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mov [rdx+r10*8], r13
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2009-03-02 15:03:30 -05:00
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add r10, 1 ; ***
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2009-02-27 09:24:25 -05:00
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test r10, 3
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jnz .1
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.2: cmp r10, 0
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jz .4
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alignb 16, nop
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.3: mov rax, [r8+r10*8]
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mov rsi, [r8+r10*8+8]
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mov rdi, [r8+r10*8+16]
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mov rbp, [r8+r10*8+24]
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mov r13, rax
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mov r14, rsi
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mov r15, rdi
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mov rbx, rbp
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add r12, 1
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adc rax, [r9+r10*8]
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adc rsi, [r9+r10*8+8]
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adc rdi, [r9+r10*8+16]
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adc rbp, [r9+r10*8+24]
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sbb r12, r12
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add r11, 1
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sbb r13, [r9+r10*8]
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sbb r14, [r9+r10*8+8]
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sbb r15, [r9+r10*8+16]
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sbb rbx, [r9+r10*8+24]
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sbb r11, r11
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mov [rcx+r10*8], rax
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mov [rcx+r10*8+8], rsi
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mov [rcx+r10*8+16], rdi
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mov [rcx+r10*8+24], rbp
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mov [rdx+r10*8], r13
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mov [rdx+r10*8+8], r14
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mov [rdx+r10*8+16], r15
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mov [rdx+r10*8+24], rbx
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add r10, 4
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jnz .3
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.4: lea rax, [r11+r12*2]
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neg rax
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2009-03-07 10:00:35 -05:00
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END_PROC reg_save_list
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2009-02-27 09:24:25 -05:00
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end
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