mpir/mpn/x86_64w/core2/lshift.asm
gladman 9bf78f0866 1. Update Windows k10 build to match Linux
2. Remove the now redundant 32 to 64 register mapping for mp_size_t inputs in Windows assembler
2010-07-02 11:52:24 +00:00

114 lines
2.9 KiB
NASM

; Version 1.0.3.
;
; Copyright 2008 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_lshift(mp_ptr, mp_ptr, mp_size_t, mp_uint)
; rax rdi rsi rdx rcx
; rax rcx rdx r8 r9d
%include "..\yasm_mac.inc"
%define reg_save_list rbx, rsi, rdi
CPU Athlon64
BITS 64
FRAME_PROC mpn_lshift, 0, reg_save_list
; odd and even n seem to have different runtimes
mov rbx, r8
lea rsi, [rdx+24]
lea rdi, [rcx+24]
mov ecx, r9d
mov rdx, [rsi+rbx*8-32]
xor rax, rax
shld rax, rdx, cl
sub rbx, 5
js .2
xalign 16
.1:
mov r8, [rsi+rbx*8]
mov r11, [rsi+rbx*8-24]
mov r9, [rsi+rbx*8-8]
shld rdx, r8, cl
mov [rdi+rbx*8+8], rdx
mov rdx, r11
mov r10, [rsi+rbx*8-16]
shld r8, r9, cl
shld r9, r10, cl
mov [rdi+rbx*8], r8
mov [rdi+rbx*8-8], r9
shld r10, r11, cl
sub rbx, 4
mov [rdi+rbx*8+16], r10
jns .1
.2:
cmp rbx, -2
ja .4
je .5
jp .6
; ALIGN(16)
.3:
shl rdx, cl
mov [rdi+rbx*8+8], rdx
jmp .7
xalign 16
.4:
mov r8, [rsi+rbx*8]
mov r9, [rsi+rbx*8-8]
shld rdx, r8, cl
mov [rdi+rbx*8+8], rdx
mov r10, [rsi+rbx*8-16]
shld r8, r9, cl
shld r9, r10, cl
mov [rdi+rbx*8], r8
mov [rdi+rbx*8-8], r9
shl r10, cl
mov [rdi+rbx*8-16], r10
jmp .7
xalign 16
.5:
mov r8, [rsi+rbx*8]
mov r9, [rsi+rbx*8-8]
shld rdx, r8, cl
mov [rdi+rbx*8+8], rdx
shld r8, r9, cl
shl r9, cl
mov [rdi+rbx*8], r8
mov [rdi+rbx*8-8], r9
jmp .7
xalign 16
.6:
mov r8, [rsi+rbx*8]
shld rdx, r8, cl
mov [rdi+rbx*8+8], rdx
shl r8, cl
mov [rdi+rbx*8], r8
.7:
END_PROC reg_save_list
end