mpir/mpn/x86_64w/k8/rsh1add_n.asm

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; 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_rsh1add_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, r12
CPU Athlon64
BITS 64
FRAME_PROC mpn_rsh1add_n, 0, reg_save_list
mov rax, r9
lea rdi, [rcx+rax*8-32]
lea rsi, [rdx+rax*8-32]
lea rdx, [r8+rax*8-32]
mov rcx, rax
mov r8, 4
sub r8, rcx
mov r12, [rsi+r8*8]
add r12, [rdx+r8*8]
sbb rbx, rbx
mov rax, r12
and rax, 1
cmp r8, 0
jge .2
.1: mov r11, [rsi+r8*8+32]
mov r10, [rsi+r8*8+24]
add rbx, 1
mov rcx, [rsi+r8*8+8]
mov r9, [rsi+r8*8+16]
adc rcx, [rdx+r8*8+8]
adc r9, [rdx+r8*8+16]
adc r10, [rdx+r8*8+24]
adc r11, [rdx+r8*8+32]
sbb rbx, rbx
bt r11, 0
rcr r10, 1
rcr r9, 1
rcr rcx, 1
rcr r12, 1
mov [rdi+r8*8], r12
mov [rdi+r8*8+8], rcx
mov [rdi+r8*8+16], r9
mov [rdi+r8*8+24], r10
mov r12, r11
add r8, 4
jnc .1
.2: cmp r8, 2
ja .6
jz .5
jp .4
.3: mov r10, [rsi+r8*8+24]
add rbx, 1
mov rcx, [rsi+r8*8+8]
mov r9, [rsi+r8*8+16]
adc rcx, [rdx+r8*8+8]
adc r9, [rdx+r8*8+16]
adc r10, [rdx+r8*8+24]
rcr r10, 1
rcr r9, 1
rcr rcx, 1
rcr r12, 1
mov [rdi+r8*8], r12
mov [rdi+r8*8+8], rcx
mov [rdi+r8*8+16], r9
mov [rdi+r8*8+24], r10
EXIT_PROC reg_save_list
xalign 16
.4: add rbx, 1
mov rcx, [rsi+r8*8+8]
mov r9, [rsi+r8*8+16]
adc rcx, [rdx+r8*8+8]
adc r9, [rdx+r8*8+16]
rcr r9, 1
rcr rcx, 1
rcr r12, 1
mov [rdi+r8*8], r12
mov [rdi+r8*8+8], rcx
mov [rdi+r8*8+16], r9
EXIT_PROC reg_save_list
xalign 16
.5: add rbx, 1
mov rcx, [rsi+r8*8+8]
adc rcx, [rdx+r8*8+8]
rcr rcx, 1
rcr r12, 1
mov [rdi+r8*8], r12
mov [rdi+r8*8+8], rcx
EXIT_PROC reg_save_list
xalign 16
.6: add rbx, 1
rcr r12, 1
mov [rdi+r8*8], r12
.7: END_PROC reg_save_list
end