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! SPARC v9 __gmpn_rshift --
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! Copyright (C) 1996, 2000 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; see the file COPYING.LIB. If not, write to
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! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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include(`../config.m4')
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.register %g2,#scratch
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.register %g3,#scratch
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ldx [%o1],%g2 ! load first limb
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sub %g0,%o3,%o5 ! negate shift count
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and %o2,4-1,%g4 ! number of limbs in first loop
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sllx %g2,%o5,%g1 ! compute function result
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brz,pn %g4,L(0) ! if multiple of 4 limbs, skip first loop
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sub %o2,%g4,%o2 ! adjust count for main loop
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L(0): brz,pn %o2,L(end)
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L(end): srlx %g2,%o3,%g2