mpir/mpn/x86_64w/atom/sublsh1_n.asm
2012-06-27 04:35:20 +00:00

150 lines
3.8 KiB
NASM

; GLOBAL_FUNC(sublsh1_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.
;
; mp_limb_t mpn_sublsh1_n(mp_ptr, mp_ptr, mp_ptr, mp_size_t)
; rax rdi rsi rdx rcx
; rax rcx rdx r8 r9
%include "yasm_mac.inc"
%define reg_save_list rbx, rsi, rdi
CPU Athlon64
BITS 64
FRAME_PROC mpn_sublsh1_n, 0, reg_save_list
mov rax, r9
lea rdi, [rcx+rax*8-56]
lea rsi, [rdx+rax*8-56]
lea rdx, [ r8+rax*8-56]
mov rcx, rax
xor rax, rax
xor r10, r10
mov r8, 3
sub r8, rcx
jge .3
add r8, 4
mov r11, [rsi+r8*8+24]
mov rcx, [rsi+r8*8+16]
mov r9, [rsi+r8*8]
mov rbx, [rsi+r8*8+8]
jc .2
xalign 16
.1: add rax, 1
sbb r9, [rdx+r8*8]
sbb rbx, [rdx+r8*8+8]
sbb rcx, [rdx+r8*8+16]
sbb r11, [rdx+r8*8+24]
sbb rax, rax
add r10, 1
sbb r9, [rdx+r8*8]
sbb rbx, [rdx+r8*8+8]
sbb rcx, [rdx+r8*8+16]
sbb r11, [rdx+r8*8+24]
sbb r10, r10
mov [rdi+r8*8], r9
mov [rdi+r8*8+8], rbx
mov [rdi+r8*8+16], rcx
mov [rdi+r8*8+24], r11
mov r11, [rsi+r8*8+56]
mov rcx, [rsi+r8*8+48]
add r8, 4
mov r9, [rsi+r8*8]
mov rbx, [rsi+r8*8+8]
jnc .1
.2: add rax, 1
sbb r9, [rdx+r8*8]
sbb rbx, [rdx+r8*8+8]
sbb rcx, [rdx+r8*8+16]
sbb r11, [rdx+r8*8+24]
sbb rax, rax
add r10, 1
sbb r9, [rdx+r8*8]
sbb rbx, [rdx+r8*8+8]
sbb rcx, [rdx+r8*8+16]
sbb r11, [rdx+r8*8+24]
sbb r10, r10
mov [rdi+r8*8], r9
mov [rdi+r8*8+8], rbx
mov [rdi+r8*8+16], rcx
mov [rdi+r8*8+24], r11
.3: cmp r8, 2
ja .7
jz .6
jp .5
.4: mov rcx, [rsi+r8*8+48]
mov r9, [rsi+r8*8+32]
mov rbx, [rsi+r8*8+40]
add rax, 1
sbb r9, [rdx+r8*8+32]
sbb rbx, [rdx+r8*8+40]
sbb rcx, [rdx+r8*8+48]
sbb rax, rax
add r10, 1
sbb r9, [rdx+r8*8+32]
sbb rbx, [rdx+r8*8+40]
sbb rcx, [rdx+r8*8+48]
mov [rdi+r8*8+32], r9
mov [rdi+r8*8+40], rbx
mov [rdi+r8*8+48], rcx
sbb rax, 0
neg rax
EXIT_PROC reg_save_list
xalign 16
.5: mov r9, [rsi+r8*8+32]
mov rbx, [rsi+r8*8+40]
add rax, 1
sbb r9, [rdx+r8*8+32]
sbb rbx, [rdx+r8*8+40]
sbb rax, rax
add r10, 1
sbb r9, [rdx+r8*8+32]
sbb rbx, [rdx+r8*8+40]
mov [rdi+r8*8+32], r9
mov [rdi+r8*8+40], rbx
sbb rax, 0
neg rax
EXIT_PROC reg_save_list
xalign 16
.6: mov r9, [rsi+r8*8+32]
add rax, 1
sbb r9, [rdx+r8*8+32]
sbb rax, rax
add r10, 1
sbb r9, [rdx+r8*8+32]
mov [rdi+r8*8+32], r9
sbb rax, 0
neg rax
EXIT_PROC reg_save_list
xalign 16
.7: add r10, 1
.8: sbb rax, 0
neg rax
END_PROC reg_save_list
end