mpir/mpn/x86_64w/nehalem/mul_1.asm
2009-12-03 17:32:55 +00:00

110 lines
2.8 KiB
NASM

; Version 1.0.3.
;
; Copyright 2008 Jason Moxham
;
; Windows Conversion Copyright 2008 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 r8d r9 [rsp+40]
%include "..\yasm_mac.inc"
CPU Core2
BITS 64
LEAF_PROC mpn_mul_1c
mov r11, [rsp+0x28]
jmp start
LEAF_PROC mpn_mul_1
xor r11, r11
jmp start
xalign 16
start:
FRAME_PROC ?mpn_mul, 0, rbx
movsxd rax, r8d
mov r8d, 3
lea r10, [rdx+rax*8-24]
sub r8, rax
lea rcx, [rcx+rax*8-24]
jc .1
jmp .2
xalign 16
.1:
mov rax, [r10+r8*8]
mov ebx, 0
mul r9
add r11, rax
mov [rcx+r8*8], r11
mov rax, [r10+r8*8+8]
adc rbx, rdx
mul r9
mov r11d, 0
add rbx, rax
mov rax, [r10+r8*8+16]
adc r11, rdx
mul r9
mov [rcx+r8*8+8], rbx
add r11, rax
mov ebx, 0
mov [rcx+r8*8+16], r11
mov rax, [r10+r8*8+24]
mov r11d, 0
adc rbx, rdx
mul r9
add rbx, rax
mov [rcx+r8*8+24], rbx
adc r11, rdx
add r8, 4
jnc .1
.2:
test r8, 2
jnz .3
mov rax, [r10+r8*8]
mov ebx, 0
mul r9
add r11, rax
mov [rcx+r8*8], r11
mov rax, [r10+r8*8+8]
adc rbx, rdx
mul r9
mov r11d, 0
add rbx, rax
adc r11, rdx
add r8, 2
mov [rcx+r8*8-8], rbx
.3:
test r8, 1
mov rax, r11
jnz .4
mov rax, [r10+r8*8]
mov ebx, 0
mul r9
add r11, rax
mov [rcx+r8*8], r11
adc rbx, rdx
mov rax, rbx
.4:
END_PROC rbx
end