mpir/mpn/x86_64w/nehalem/mul_1.asm

120 lines
2.9 KiB
NASM

; Copyright 2010 Jason Moxham
;
; Windows Conversion Copyright 2010 Brian Gladman
;
; This file is part of the MPIR Library.
; The MPIR Library is free software; you can redistribute it and/or modify
; it under the terms of the GNU Lesser General Public License as published
; by the Free Software Foundation; either version 2.1 of the License, or (at
; your option) any later version.
; The MPIR Library is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
; License for more details.
; You should have received a copy of the GNU Lesser General Public License
; along with the MPIR Library; see the file COPYING.LIB. If not, write
; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
; Boston, MA 02110-1301, USA.
;
; mp_limb_t mpn_mul_1(mp_ptr, mp_ptr, mp_size_t, mp_limb_t)
; mp_limb_t mpn_mul_1c(mp_ptr, mp_ptr, mp_size_t, mp_limb_t, mp_limb_t)
; rax rdi rsi rdx rcx r8
; rax rcx rdx r8 r9 [rsp+40]
%include "yasm_mac.inc"
CPU nehalem
BITS 64
%define reg_save_list rsi, rdi
LEAF_PROC mpn_mul_1c
mov r11, [rsp+0x28]
jmp start
LEAF_PROC mpn_mul_1
xor r11, r11
xalign 16
start:
FRAME_PROC ?mpn_nehalem_mul, 0, reg_save_list
mov rax, r8
mov r8, 3
lea rdi, [rcx+rax*8-24]
lea rsi, [rdx+rax*8-24]
mov rcx, r9
sub r8, rax
mov r9d, 0
mov rax, [rsi+r8*8+24-24]
jnc .1
xalign 16
.0: mul rcx
add r11, rax
mov [rdi+r8*8], r11
mov r10d, 0
mov rax, [rsi+r8*8+8]
adc r10, rdx
mov r11d, 0
mul rcx
add r10, rax
mov r9d, 0
mov rax, [rsi+r8*8+16]
mov [rdi+r8*8+8], r10
adc r9, rdx
mul rcx
add r9, rax
mov rax, [rsi+r8*8+24]
mov [rdi+r8*8+16], r9
adc r11, rdx
add r8, 3
jnc .0
.1:
cmp r8, 1
ja .4
je .3
.2: mul rcx
add r11, rax
mov [rdi], r11
mov r10d, 0
mov rax, [rsi+8]
adc r10, rdx
mov r11d, 0
mul rcx
add r10, rax
mov r9d, 0
mov rax, [rsi+16]
mov [rdi+8], r10
adc r9, rdx
mul rcx
add r9, rax
mov [rdi+16], r9
adc r11, rdx
mov rax, r11
EXIT_PROC reg_save_list
.3: mul rcx
add r11, rax
mov [rdi+8], r11
mov r10d, 0
mov rax, [rsi+16]
adc r10, rdx
mov r11d, 0
mul rcx
add r10, rax
mov r9d, 0
mov [rdi+16], r10
adc r9, rdx
mov rax, r9
EXIT_PROC reg_save_list
.4: mul rcx
add r11, rax
mov [rdi+16], r11
mov r10d, 0
adc r10, rdx
mov rax, r10
END_PROC reg_save_list
end