mpir/mpn/x86_64/atom/addmul_2.as

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; k8 mpn_addmul_2
; Copyright 2009 Jason Moxham
; 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.
%include "yasm_mac.inc"
GLOBAL_FUNC mpn_addmul_2
; (rdi,rdx+1) = (rdi,rdx) + (rsi,rdx)*(rcx,2) return carrylimb
push rbx
push r12
mov r8, [rcx+8]
mov rcx, [rcx]
mov rbx, 4
sub rbx, rdx
lea rsi, [rsi+rdx*8-32]
lea rdi, [rdi+rdx*8-32]
mov r10, 0
mov rax, [rsi+rbx*8]
mul rcx
mov r12, rax
mov r9, rdx
cmp rbx, 0
jge skiplp
align 16
lp:
mov rax, [rsi+rbx*8]
mul r8
add r9, rax
mov rax, [rsi+rbx*8+8]
adc r10, rdx
mov r11, 0
mul rcx
add [rdi+rbx*8], r12
adc r9, rax
mov r12, 0
adc r10, rdx
mov rax, [rsi+rbx*8+8]
adc r11, 0
mul r8
add [rdi+rbx*8+8], r9
adc r10, rax
adc r11, rdx
mov rax, [rsi+rbx*8+16]
mul rcx
add r10, rax
mov rax, [rsi+rbx*8+16]
adc r11, rdx
adc r12, 0
mul r8
add [rdi+rbx*8+16], r10
mov r9, 0
adc r11, rax
mov r10, 0
mov rax, [rsi+rbx*8+24]
adc r12, rdx
mov r15, r15
mul rcx
add r11, rax
mov rax, [rsi+rbx*8+24]
adc r12, rdx
adc r9, 0
mul r8
add [rdi+rbx*8+24], r11
adc r12, rax
adc r9, rdx
mov rax, [rsi+rbx*8+32]
mul rcx
add r12, rax
adc r9, rdx
adc r10, 0
add rbx, 4
jnc lp
skiplp:
mov rax, [rsi+rbx*8]
mul r8
cmp rbx, 2
ja case0
jz case1
jp case2
case3:
add r9, rax
mov rax, [rsi+rbx*8+8]
adc r10, rdx
mov r11, 0
mul rcx
add [rdi+rbx*8], r12
adc r9, rax
mov r12, 0
adc r10, rdx
mov rax, [rsi+rbx*8+8]
adc r11, 0
mul r8
add [rdi+rbx*8+8], r9
adc r10, rax
adc r11, rdx
mov rax, [rsi+rbx*8+16]
mul rcx
add r10, rax
mov rax, [rsi+rbx*8+16]
adc r11, rdx
adc r12, 0
mul r8
add [rdi+rbx*8+16], r10
mov r9, 0
adc r11, rax
; padding
mov r10, 0
mov rax, [rsi+rbx*8+24]
adc r12, rdx
; padding
mov r15, r15
mul rcx
add r11, rax
mov rax, [rsi+rbx*8+24]
adc r12, rdx
adc r9, 0
mul r8
add [rdi+rbx*8+24], r11
adc r12, rax
adc r9, rdx
mov [rdi+rbx*8+32], r12
mov rax, r9
pop r12
pop rbx
ret
align 16
case2:
add r9, rax
mov rax, [rsi+rbx*8+8]
adc r10, rdx
mov r11, 0
mul rcx
add [rdi+rbx*8], r12
adc r9, rax
mov r12, 0
adc r10, rdx
mov rax, [rsi+rbx*8+8]
adc r11, 0
mul r8
add [rdi+rbx*8+8], r9
adc r10, rax
adc r11, rdx
mov rax, [rsi+rbx*8+16]
mul rcx
add r10, rax
mov rax, [rsi+rbx*8+16]
adc r11, rdx
adc r12, 0
mul r8
add [rdi+rbx*8+16], r10
adc r11, rax
adc r12, rdx
mov [rdi+rbx*8+24], r11
mov rax, r12
pop r12
pop rbx
ret
align 16
case1:
add r9, rax
mov rax, [rsi+rbx*8+8]
adc r10, rdx
mov r11, 0
mul rcx
add [rdi+rbx*8], r12
adc r9, rax
mov r12, 0
adc r10, rdx
mov rax, [rsi+rbx*8+8]
adc r11, 0
mul r8
add [rdi+rbx*8+8], r9
adc r10, rax
adc r11, rdx
mov [rdi+rbx*8+16], r10
mov rax, r11
pop r12
pop rbx
ret
align 16
case0:
add [rdi+rbx*8], r12
adc r9, rax
adc r10, rdx
mov [rdi+rbx*8+8], r9
mov rax, r10
pop r12
pop rbx
ret
end