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66 lines
1.6 KiB
ArmAsm
66 lines
1.6 KiB
ArmAsm
;! HP-PA __mpn_lshift --
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;! Copyright (C) 1992-2023 Free Software Foundation, Inc.
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;! This file is part of the GNU MP Library.
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;! The GNU MP Library is free software; you can redistribute it and/or modify
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;! it under the terms of the GNU Lesser General Public License as published by
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;! the Free Software Foundation; either version 2.1 of the License, or (at your
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;! option) any later version.
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;! The GNU MP Library is distributed in the hope that it will be useful, but
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;! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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;! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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;! License for more details.
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;! You should have received a copy of the GNU Lesser General Public License
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;! along with the GNU MP Library. If not, see
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;! <https://www.gnu.org/licenses/>.
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;! INPUT PARAMETERS
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;! res_ptr gr26
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;! s_ptr gr25
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;! size gr24
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;! cnt gr23
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.text
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.export __mpn_lshift
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__mpn_lshift:
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.proc
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.callinfo frame=64,no_calls
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.entry
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sh2add %r24,%r25,%r25
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sh2add %r24,%r26,%r26
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ldws,mb -4(%r25),%r22
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subi 32,%r23,%r1
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mtsar %r1
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addib,= -1,%r24,L$0004
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vshd %r0,%r22,%r28 ;! compute carry out limb
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ldws,mb -4(%r25),%r29
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addib,= -1,%r24,L$0002
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vshd %r22,%r29,%r20
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L$loop: ldws,mb -4(%r25),%r22
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stws,mb %r20,-4(%r26)
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addib,= -1,%r24,L$0003
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vshd %r29,%r22,%r20
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ldws,mb -4(%r25),%r29
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stws,mb %r20,-4(%r26)
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addib,<> -1,%r24,L$loop
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vshd %r22,%r29,%r20
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L$0002: stws,mb %r20,-4(%r26)
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vshd %r29,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(%r26)
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L$0003: stws,mb %r20,-4(%r26)
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L$0004: vshd %r22,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(%r26)
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.exit
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.procend
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