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diff --git a/ports/sysdeps/hppa/rshift.S b/ports/sysdeps/hppa/rshift.S
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+;! HP-PA __mpn_rshift --
+
+;! Copyright (C) 1992, 1994 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. If not, see
+;! <http://www.gnu.org/licenses/>.
+
+
+;! INPUT PARAMETERS
+;! res_ptr gr26
+;! s_ptr gr25
+;! size gr24
+;! cnt gr23
+
+ .text
+ .export __mpn_rshift
+__mpn_rshift:
+ .proc
+ .callinfo frame=64,no_calls
+ .entry
+
+ ldws,ma 4(%r25),%r22
+ mtsar %r23
+ addib,= -1,%r24,L$0004
+ vshd %r22,%r0,%r28 ;! compute carry out limb
+ ldws,ma 4(%r25),%r29
+ addib,= -1,%r24,L$0002
+ vshd %r29,%r22,%r20
+
+L$loop: ldws,ma 4(%r25),%r22
+ stws,ma %r20,4(%r26)
+ addib,= -1,%r24,L$0003
+ vshd %r22,%r29,%r20
+ ldws,ma 4(%r25),%r29
+ stws,ma %r20,4(%r26)
+ addib,<> -1,%r24,L$loop
+ vshd %r29,%r22,%r20
+
+L$0002: stws,ma %r20,4(%r26)
+ vshd %r0,%r29,%r20
+ bv 0(%r2)
+ stw %r20,0(%r26)
+L$0003: stws,ma %r20,4(%r26)
+L$0004: vshd %r0,%r22,%r20
+ bv 0(%r2)
+ stw %r20,0(%r26)
+
+ .exit
+ .procend