mpir/mpn/x86_64/core2/copyi.as

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ActionScript

; mpn_copyi
; 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'
; mpn_copyi(mp_ptr rdi ,mp_ptr rsi ,mp_size_t rdx)
; (rdi,rdx)=(rsi,rdx)
GLOBAL_FUNC mpn_copyi
sub rdx, 4
jl L_skiplp
align 16
L_lp:
mov rax, [rsi]
mov rcx, [rsi+8]
mov r8, [rsi+16]
mov r9, [rsi+24]
mov [rdi], rax
mov [rdi+8], rcx
lea rdi, [rdi+32]
sub rdx, 4
mov [rdi-16], r8
mov [rdi-8], r9
lea rsi, [rsi+32]
jns L_lp
L_skiplp:
add rdx, 2
jz L_case2
jns L_case3
jp L_case1
L_case0:
ret
align 16
L_case1:
mov rax, [rsi]
mov [rdi], rax
ret
align 16
L_case2:
mov rax, [rsi]
mov rcx, [rsi+8]
mov [rdi], rax
mov [rdi+8], rcx
ret
align 16
L_case3:
mov rax, [rsi]
mov rcx, [rsi+8]
mov r8, [rsi+16]
mov [rdi], rax
mov [rdi+8], rcx
mov [rdi+16], r8
ret
end