1 ; HP-PA 2.0 __gmpn_rshift --
3 ; Copyright (C) 1997, 2000 Free Software Foundation, Inc.
5 ; This file is part of the GNU MP Library.
7 ; The GNU MP Library is free software; you can redistribute it and/or modify
8 ; it under the terms of the GNU Lesser General Public License as published by
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14 ; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
15 ; License for more details.
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18 ; along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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29 ; This runs at 1.5 cycles/limb on PA8000.
33 .export __gmpn_rshift,entry
36 .callinfo frame=0,args_saved
42 shrpd %r21,%r0,%sar,%r29 ; compute carry out limb
43 depw,z %r24,31,3,%r28 ; r28 = (size & 7)
45 depw,z %r22,28,3,%r22 ; r22 = 8 * (-size & 7)
46 sub %r25,%r22,%r25 ; offset s1_ptr
47 blr %r28,%r0 ; branch into jump table
48 sub %r26,%r22,%r26 ; offset res_ptr
68 shrpd %r20,%r21,%sar,%r21
71 shrpd %r21,%r20,%sar,%r20
74 shrpd %r20,%r21,%sar,%r21
77 shrpd %r21,%r20,%sar,%r20
80 shrpd %r20,%r21,%sar,%r21
83 shrpd %r21,%r20,%sar,%r20
86 shrpd %r20,%r21,%sar,%r21
90 shrpd %r21,%r20,%sar,%r20
92 addib,> -8,%r24,L$loop
95 L$end shrpd %r0,%r21,%sar,%r21