; Copyright 1992, 1994, 1996, 1999, 2000, 2001, 2002 Free Software ; Foundation, Inc. ; ; This file is part of the GNU MP Library. ; ; The GNU MP 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 GNU MP 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 GNU MP Library; see the file COPYING.LIB. If ; not, write to the Free Software Foundation, Inc., 59 Temple Place - ; Suite 330, Boston, MA 02111-1307, USA. ; ; Translation of AT&T syntax code by Brian Gladman %include "x86i.inc" %define PARAM_SHIFT esp+frame+16 %define PARAM_SIZE esp+frame+12 %define PARAM_SRC esp+frame+8 %define PARAM_DST esp+frame+4 section .text global ___gmpn_lshift %ifdef DLL export ___gmpn_lshift %endif align 8 ___gmpn_lshift: push edi push esi push ebx %assign frame frame+12 mov edi,[PARAM_DST] mov esi,[PARAM_SRC] mov edx,[PARAM_SIZE] mov ecx,[PARAM_SHIFT] sub esi,4 ; adjust src mov ebx,[esi+edx*4] ; read most significant limb xor eax,eax shld eax,ebx,cl dec edx jz Lend push eax ; push carry limb onto stack test dl,1 jnz L1 ; enter Lop in the middle mov eax,ebx align 8 Lop: mov ebx,[esi+edx*4] ; load next lower limb shld eax,ebx,cl mov [edi+edx*4],eax ; store it dec edx L1: mov eax,[esi+edx*4] shld ebx,eax,cl mov [edi+edx*4],ebx dec edx jnz Lop shl eax,cl ; compute least significant limb mov [edi],eax ; store it pop eax ; pop carry limb pop ebx pop esi pop edi ret Lend: shl ebx,cl ; compute least significant limb mov [edi],ebx ; store it pop ebx pop esi pop edi ret end