104 lines
2.4 KiB
ActionScript
104 lines
2.4 KiB
ActionScript
|
|
; AMD64 mpn_lshift1
|
|
; Copyright 2008 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.
|
|
|
|
; (rdi,rdx) = (rsi,rdx)<<1
|
|
; rax = carry
|
|
|
|
%include 'yasm_mac.inc'
|
|
|
|
BITS 64
|
|
|
|
GLOBAL_FUNC mpn_lshift1
|
|
xor rax, rax
|
|
mov r11, rdx
|
|
and r11, 7
|
|
inc r11
|
|
shr rdx, 3
|
|
; and clear carry flag
|
|
cmp rdx, 0
|
|
jz next
|
|
align 16
|
|
loop1:
|
|
mov rcx, [rsi]
|
|
mov r8, [rsi+8]
|
|
mov r10, [rsi+16]
|
|
mov r9, [rsi+24]
|
|
adc rcx, rcx
|
|
adc r8, r8
|
|
adc r10, r10
|
|
adc r9, r9
|
|
mov [rdi], rcx
|
|
mov [rdi+8], r8
|
|
mov [rdi+16], r10
|
|
mov [rdi+24], r9
|
|
mov rcx, [rsi+32]
|
|
mov r8, [rsi+40]
|
|
mov r10, [rsi+48]
|
|
mov r9, [rsi+56]
|
|
adc rcx, rcx
|
|
adc r8, r8
|
|
adc r10, r10
|
|
adc r9, r9
|
|
mov [rdi+32], rcx
|
|
mov [rdi+40], r8
|
|
mov [rdi+48], r10
|
|
mov [rdi+56], r9
|
|
lea rdi, [rdi+64]
|
|
dec rdx
|
|
lea rsi, [rsi+64]
|
|
jnz loop1
|
|
next:
|
|
dec r11
|
|
jz end
|
|
; Could still have cache-bank conflicts in this tail part
|
|
mov rcx, [rsi]
|
|
adc rcx, rcx
|
|
mov [rdi], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+8]
|
|
adc rcx, rcx
|
|
mov [rdi+8], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+16]
|
|
adc rcx, rcx
|
|
mov [rdi+16], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+24]
|
|
adc rcx, rcx
|
|
mov [rdi+24], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+32]
|
|
adc rcx, rcx
|
|
mov [rdi+32], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+40]
|
|
adc rcx, rcx
|
|
mov [rdi+40], rcx
|
|
dec r11
|
|
jz end
|
|
mov rcx, [rsi+48]
|
|
adc rcx, rcx
|
|
mov [rdi+48], rcx
|
|
end:
|
|
adc rax, rax
|
|
ret
|