See ChangeLog: Fri Nov 27 12:39:29 CET 1998 Werner Koch

mpi/powerpc32/mpih-rshift.S

@@ -20,6 +20,12 @@
  */
 
 
+#include "sysdep.h"
+#include "asm-syntax.h"
+
+
+#ifndef USE_PPC_PATCHES
+
 /*******************
  * mpi_limb_t
  * mpihelp_rshift( mpi_ptr_t wp,	(r3)
@@ -66,3 +72,60 @@ Lend2:	srw	0,10,6
 	stw	0,4(7)
 	blr
 
+#else
+/* Shift a limb right, low level routine.
+   Copyright (C) 1995, 1997 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.	*/
+
+
+/* INPUT PARAMETERS
+   res_ptr     r3
+   s1_ptr      r4
+   size 	       r5
+   cnt	       r6  */
+
+ENTRY(_mpihelp_rshift)
+       mtctr   5	       # copy size into CTR
+       addi    7,3,-4	       # move adjusted res_ptr to free return reg
+       subfic  8,6,32
+       lwz     11,0(4)	       # load first s1 limb
+       slw     3,11,8	       # compute function return value
+       bdz     1f
+
+0:     lwzu    10,4(4)
+       srw     9,11,6
+       slw     12,10,8
+       or      9,9,12
+       stwu    9,4(7)
+       bdz     2f
+       lwzu    11,4(4)
+       srw     9,10,6
+       slw     12,11,8
+       or      9,9,12
+       stwu    9,4(7)
+       bdnz    0b
+
+1:     srw     0,11,6
+       stw     0,4(7)
+       blr
+
+2:     srw     0,10,6
+       stw     0,4(7)
+       blr
+END(_mpihelp_rshift)
+#endif