109 lines
2.5 KiB
NASM
109 lines
2.5 KiB
NASM
|
|
; mpn_add_n
|
|
|
|
; Copyright 2009 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.
|
|
;
|
|
; rax=mpn_add_n(mp_ptr r9 ,mp_ptr rdx ,mp_ptr r8 ,mp_size_t rcx)
|
|
; (r9,rcx)=(rdx,rcx)+(r8,rcx) return rax=carry
|
|
|
|
%include "..\yasm_mac.inc"
|
|
|
|
%define TR2 r10
|
|
%define TR4 r10
|
|
|
|
CPU Core2
|
|
BITS 64
|
|
|
|
LEAF_PROC mpn_add_n
|
|
movsxd rax, r9d
|
|
mov r9, rcx
|
|
mov rcx, rax
|
|
and rax, 3
|
|
sub rcx, rax
|
|
lea r9, [r9+rcx*8]
|
|
lea rdx, [rdx+rcx*8]
|
|
lea r8, [r8+rcx*8]
|
|
neg rcx
|
|
cmp rcx, 0
|
|
jz L_skiplp
|
|
xalign 16
|
|
L_lp:
|
|
mov r10, [rdx+rcx*8]
|
|
mov r11, [rdx+rcx*8+16]
|
|
adc r10, [r8+rcx*8]
|
|
mov [r9+rcx*8], r10
|
|
mov TR2, [rdx+rcx*8+8]
|
|
adc TR2, [r8+rcx*8+8]
|
|
mov [r9+rcx*8+8], TR2
|
|
lea rcx, [rcx+4]
|
|
mov TR4, [rdx+rcx*8-8]
|
|
adc r11, [r8+rcx*8-16]
|
|
adc TR4, [r8+rcx*8-8]
|
|
mov [r9+rcx*8-16], r11
|
|
mov [r9+rcx*8-8], TR4
|
|
jrcxz L_exitlp
|
|
jmp L_lp
|
|
L_exitlp:
|
|
sbb rcx, rcx
|
|
L_skiplp:
|
|
cmp rax, 2
|
|
ja L_case3
|
|
jz L_case2
|
|
jp L_case1
|
|
L_case0:
|
|
sub rax, rcx
|
|
ret
|
|
xalign 16
|
|
L_case1:
|
|
add rcx, rcx
|
|
mov r10, [rdx]
|
|
adc r10, [r8]
|
|
mov [r9], r10
|
|
sbb rax, rax
|
|
neg rax
|
|
ret
|
|
xalign 16
|
|
L_case3:
|
|
add rcx, rcx
|
|
mov r10, [rdx]
|
|
mov r11, [rdx+16]
|
|
adc r10, [r8]
|
|
mov [r9], r10
|
|
mov TR2, [rdx+8]
|
|
adc TR2, [r8+8]
|
|
mov [r9+8], TR2
|
|
adc r11, [r8+16]
|
|
mov [r9+16], r11
|
|
sbb rax, rax
|
|
neg rax
|
|
ret
|
|
xalign 16
|
|
L_case2:
|
|
add rcx, rcx
|
|
mov r10, [rdx]
|
|
adc r10, [r8]
|
|
mov [r9], r10
|
|
mov TR2, [rdx+8]
|
|
adc TR2, [r8+8]
|
|
mov [r9+8], TR2
|
|
sbb rax, rax
|
|
neg rax
|
|
ret
|
|
end
|