153 lines
4.3 KiB
NASM
153 lines
4.3 KiB
NASM
; PROLOGUE(mpn_sumdiff_n)
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;
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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_sumdiff_n(mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_size_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 reg_save_list rbx, rbp, rsi, rdi, r12, r13, r14, r15
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CPU Nehalem
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BITS 64
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FRAME_PROC mpn_sumdiff_n, 0, reg_save_list
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mov rbx, [rsp+stack_use+40]
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xor rax, rax
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mov r10d, 3
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lea rdi, [rcx+rbx*8-24]
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lea rsi, [rdx+rbx*8-24]
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sub r10, rbx
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lea rdx, [r8+rbx*8-24]
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lea rcx, [r9+rbx*8-24]
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mov r9, rax
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jnc .2
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align 16
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.1: sahf
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mov r8, [rdx+r10*8]
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mov r11, r8
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adc r8, [rcx+r10*8]
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mov rbx, [rdx+r10*8+8]
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mov r13, rbx
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adc rbx, [rcx+r10*8+8]
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mov r12, [rdx+r10*8+24]
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mov rbp, [rdx+r10*8+16]
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mov r15, r12
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mov r14, rbp
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adc rbp, [rcx+r10*8+16]
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adc r12, [rcx+r10*8+24]
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lahf
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add r9b, 255
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sbb r11, [rcx+r10*8]
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mov [rdi+r10*8], r8
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sbb r13, [rcx+r10*8+8]
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sbb r14, [rcx+r10*8+16]
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mov [rdi+r10*8+8], rbx
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mov [rdi+r10*8+16], rbp
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sbb r15, [rcx+r10*8+24]
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mov [rdi+r10*8+24], r12
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setc r9b
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mov [rsi+r10*8+16], r14
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mov [rsi+r10*8+24], r15
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add r10, 4
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mov [rsi+r10*8+8-32], r13
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mov [rsi+r10*8-32], r11
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jnc .1
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.2:
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cmp r10, 2
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jg .6
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je .5
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jp .4
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.3: sahf
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mov r8, [rdx]
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mov r11, r8
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adc r8, [rcx]
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mov rbx, [rdx+8]
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mov r13, rbx
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adc rbx, [rcx+8]
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mov rbp, [rdx+16]
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mov r14, rbp
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adc rbp, [rcx+16]
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lahf
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add r9b, 255
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sbb r11, [rcx]
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mov [rdi], r8
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sbb r13, [rcx+8]
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sbb r14, [rcx+16]
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mov [rdi+8], rbx
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mov [rdi+16], rbp
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setc r9b
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mov [rsi+16], r14
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mov [rsi+8], r13
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mov [rsi], r11
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sahf
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mov rax, 0
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adc rax, 0
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add r9b, 255
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rcl rax, 1
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EXIT_PROC reg_save_list
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.4: sahf
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mov r8, [rdx+8]
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mov r11, r8
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adc r8, [rcx+8]
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mov rbx, [rdx+8+8]
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mov r13, rbx
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adc rbx, [rcx+8+8]
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lahf
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add r9b, 255
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sbb r11, [rcx+8]
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mov [rdi+8], r8
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sbb r13, [rcx+8+8]
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mov [rdi+8+8], rbx
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setc r9b
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mov [rsi+8+8], r13
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mov [rsi+8], r11
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sahf
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mov rax, 0
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adc rax, 0
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add r9b, 255
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rcl rax, 1
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EXIT_PROC reg_save_list
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.5: sahf
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mov r8, [rdx+16]
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mov r11, r8
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adc r8, [rcx+16]
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lahf
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add r9b, 255
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sbb r11, [rcx+16]
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mov [rdi+16], r8
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setc r9b
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mov [rsi+16], r11
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.6: sahf
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mov rax, 0
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adc rax, 0
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add r9b, 255
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rcl rax, 1
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END_PROC reg_save_list
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end
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