/* Shift a limb right, low level routine. Copyright (C) 1995, 1997, 1999 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C 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 Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C 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. */ #include <sysdep.h> /* INPUT PARAMETERS res_ptr r3 s1_ptr r4 size r5 cnt r6 */ ENTRY(__mpn_rshift) mtctr r5 # copy size into CTR addi r7,r3,-4 # move adjusted res_ptr to free return reg subfic r8,r6,32 lwz r11,0(r4) # load first s1 limb slw r3,r11,r8 # compute function return value bdz 1f 0: lwzu r10,4(r4) srw r9,r11,r6 slw r12,r10,r8 or r9,r9,r12 stwu r9,4(r7) bdz 2f lwzu r11,4(r4) srw r9,r10,r6 slw r12,r11,r8 or r9,r9,r12 stwu r9,4(r7) bdnz 0b 1: srw r0,r11,r6 stw r0,4(r7) blr 2: srw r0,r10,r6 stw r0,4(r7) blr END(__mpn_rshift)