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f133d007f9
Old version was from 2012-05-06, 6.1.2 is from 2016-12-16 A lot of support for newer processors and speedups since then See gmp/NEWS for details
73 lines
1.9 KiB
NASM
73 lines
1.9 KiB
NASM
dnl HP-PA mpn_rshift -- Shift a number right.
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dnl Copyright 1992, 1994, 2000-2002 Free Software Foundation, Inc.
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dnl This file is part of the GNU MP Library.
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dnl
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dnl The GNU MP Library is free software; you can redistribute it and/or modify
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dnl it under the terms of either:
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dnl
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dnl * the GNU Lesser General Public License as published by the Free
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dnl Software Foundation; either version 3 of the License, or (at your
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dnl option) any later version.
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dnl
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dnl or
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dnl
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dnl * the GNU General Public License as published by the Free Software
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dnl Foundation; either version 2 of the License, or (at your option) any
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dnl later version.
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dnl
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dnl or both in parallel, as here.
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dnl
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dnl The GNU MP Library is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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dnl for more details.
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dnl
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dnl You should have received copies of the GNU General Public License and the
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dnl GNU Lesser General Public License along with the GNU MP Library. If not,
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dnl see https://www.gnu.org/licenses/.
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include(`../config.m4')
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C INPUT PARAMETERS
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C res_ptr gr26
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C s_ptr gr25
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C size gr24
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C cnt gr23
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ASM_START()
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PROLOGUE(mpn_rshift)
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ldws,ma 4(0,%r25),%r22
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mtsar %r23
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addib,= -1,%r24,L(0004)
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vshd %r22,%r0,%r28 C compute carry out limb
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ldws,ma 4(0,%r25),%r29
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addib,= -1,%r24,L(0002)
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vshd %r29,%r22,%r20
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LDEF(loop)
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ldws,ma 4(0,%r25),%r22
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stws,ma %r20,4(0,%r26)
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addib,= -1,%r24,L(0003)
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vshd %r22,%r29,%r20
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ldws,ma 4(0,%r25),%r29
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stws,ma %r20,4(0,%r26)
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addib,<> -1,%r24,L(loop)
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vshd %r29,%r22,%r20
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LDEF(0002)
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stws,ma %r20,4(0,%r26)
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vshd %r0,%r29,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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LDEF(0003)
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stws,ma %r20,4(0,%r26)
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LDEF(0004)
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vshd %r0,%r22,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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EPILOGUE()
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