mpir/mpn/x86_64w/haswell/mul_1.asm
2017-01-22 22:41:01 +00:00

150 lines
4.1 KiB
NASM

; PROLOGUE(mpn_mul_1)
; Copyright 2011 The Code Cavern
;
; Windows Conversion Copyright 2011 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 Athlon64
BITS 64
%define reg_save_list rsi, rdi, r12
LEAF_PROC mpn_mul_1
mov rax, [rdx]
cmp r8, 1
jne .1
mul r9
mov [rcx], rax
mov rax, rdx
ret
.1: FRAME_PROC ?mpn_sandybridge_mul, 0, reg_save_list
mov r11, 5
lea rsi, [rdx+r8*8-40]
lea rdi, [rcx+r8*8-40]
mov rcx, r9
sub r11, r8
mul rcx
db 0x26
mov r8, rax
db 0x26
mov rax, [rsi+r11*8+8]
db 0x26
mov r9, rdx
db 0x26
cmp r11, 0
db 0x26
mov [rsp-8], r12
db 0x26
jge .2
.1: xor r10, r10
mul rcx
mov [rdi+r11*8], r8
add r9, rax
adc r10, rdx
mov rax, [rsi+r11*8+16]
mul rcx
mov [rdi+r11*8+8], r9
add r10, rax
mov r12d, 0
adc r12, rdx
mov rax, [rsi+r11*8+24]
xor r8, r8
xor r9, r9
mul rcx
mov [rdi+r11*8+16], r10
add r12, rax
adc r8, rdx
mov rax, [rsi+r11*8+32]
mul rcx
mov [rdi+r11*8+24], r12
add r8, rax
adc r9, rdx
add r11, 4
mov rax, [rsi+r11*8+8]
jnc .1
.2: xor r10, r10
mul rcx
mov [rdi+r11*8], r8
add r9, rax
adc r10, rdx
cmp r11, 2
ja .5
jz .4
jp .3
mov rax, [rsi+16]
mul rcx
mov [rdi+8], r9
add r10, rax
mov r12d, 0
adc r12, rdx
mov rax, [rsi+24]
xor r8, r8
xor r9, r9
mul rcx
mov [rdi+16], r10
add r12, rax
adc r8, rdx
mov rax, [rsi+32]
mul rcx
mov [rdi+24], r12
add r8, rax
adc r9, rdx
mov [rdi+32], r8
mov rax, r9
EXIT_PROC reg_save_list
.3: mov rax, [rsi+24]
mul rcx
mov [rdi+16], r9
add r10, rax
mov r12d, 0
adc r12, rdx
mov rax, [rsi+32]
xor r8, r8
mul rcx
mov [rdi+24], r10
add r12, rax
adc r8, rdx
mov [rdi+32], r12
mov rax, r8
EXIT_PROC reg_save_list
align 16
.4: mov rax, [rsi+32]
mul rcx
mov [rdi+24], r9
add r10, rax
mov r12d, 0
adc r12, rdx
mov [rdi+32], r10
mov rax, r12
EXIT_PROC reg_save_list
.5: mov [rdi+32], r9
mov rax, r10
END_PROC reg_save_list
end