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dnl SPARC T1 32-bit mpn_add_n.
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dnl Copyright 2010 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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define(`rp', %o0)
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define(`ap', %o1)
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define(`bp', %o2)
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define(`n', %o3)
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define(`cy', %o4)
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define(`i', %o3)
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MULFUNC_PROLOGUE(mpn_add_n mpn_add_nc)
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ASM_START()
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PROLOGUE(mpn_add_nc)
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b L(ent)
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srl cy, 0, cy C strip any bogus high bits
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EPILOGUE()
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PROLOGUE(mpn_add_n)
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mov 0, cy
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L(ent): srl n, 0, n C strip any bogus high bits
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sll n, 2, n
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add ap, n, ap
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add bp, n, bp
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add rp, n, rp
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neg n, i
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L(top): lduw [ap+i], %g1
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lduw [bp+i], %g2
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add %g1, %g2, %g3
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add %g3, cy, %g3
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stw %g3, [rp+i]
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add i, 4, i
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brnz i, L(top)
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srlx %g3, 32, cy
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retl
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mov cy, %o0 C return value
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EPILOGUE()
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