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+/* SPARC v9 __mpn_rshift --
+
+ Copyright (C) 1996 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 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 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 Library General Public
+ License for more details.
+
+ You should have received a copy of the GNU Library 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. */
+
+#include <sysdep.h>
+
+/* INPUT PARAMETERS
+ res_ptr %i0
+ src_ptr %i1
+ size %i2
+ cnt %i3 */
+
+ENTRY(__mpn_rshift)
+ save %sp, -128, %sp
+
+ ldx [%i1],%g2 ! load first limb
+ sub %g0,%i3,%i5 ! negate shift count
+ add %i2,-1,%i2
+ and %i2,4-1,%l4 ! number of limbs in first loop
+ sllx %g2,%i5,%g1 ! compute function result
+ brz,pn %l4,.L0 ! if multiple of 4 limbs, skip first loop
+ mov %g1,%l1
+
+ sub %i2,%l4,%i2 ! adjust count for main loop
+
+.Loop0: ldx [%i1+8],%g3
+ add %i0,8,%i0
+ add %i1,8,%i1
+ add %l4,-1,%l4
+ srlx %g2,%i3,%i4
+ sllx %g3,%i5,%g1
+ mov %g3,%g2
+ or %i4,%g1,%i4
+ brnz,pt %l4,.Loop0
+ stx %i4,[%i0-8]
+
+.L0: brz,pn %i2,.Lend
+ nop
+
+.Loop: ldx [%i1+8],%g3
+ add %i0,32,%i0
+ add %i2,-4,%i2
+ srlx %g2,%i3,%i4
+ sllx %g3,%i5,%g1
+
+ ldx [%i1+16],%g2
+ srlx %g3,%i3,%l4
+ or %i4,%g1,%i4
+ stx %i4,[%i0-32]
+ sllx %g2,%i5,%g1
+
+ ldx [%i1+24],%g3
+ srlx %g2,%i3,%i4
+ or %l4,%g1,%l4
+ stx %l4,[%i0-24]
+ sllx %g3,%i5,%g1
+
+ ldx [%i1+32],%g2
+ srlx %g3,%i3,%l4
+ or %i4,%g1,%i4
+ stx %i4,[%i0-16]
+ sllx %g2,%i5,%g1
+
+ add %i1,32,%i1
+ or %l4,%g1,%l4
+ brnz %i2,.Loop
+ stx %l4,[%i0-8]
+
+.Lend: srlx %g2,%i3,%g2
+ stx %g2,[%i0-0]
+
+ mov %l1,%i0
+ jmpl %i7+8,%g0
+ restore
+
+END(__mpn_rshift)