60 lines
1.6 KiB
NASM
60 lines
1.6 KiB
NASM
dnl SPARC v9 64-bit mpn_submul_1 -- Multiply a limb vector with a limb and
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dnl subtract the result from a second limb vector.
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dnl Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
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dnl This file is part of the GNU MP Library.
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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 the GNU Lesser General Public License as published
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dnl by the Free Software Foundation; either version 2.1 of the License, or (at
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dnl your option) any later version.
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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 Lesser General Public
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dnl License for more details.
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dnl You should have received a copy of the GNU Lesser General Public License
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dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write
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dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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dnl Boston, MA 02110-1301, USA.
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include(`../config.m4')
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C cycles/limb
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C UltraSPARC 1&2: 18
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C UltraSPARC 3: 23
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C INPUT PARAMETERS
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C rp i0
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C up i1
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C n i2
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C v i3
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ASM_START()
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REGISTER(%g2,#scratch)
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PROLOGUE(mpn_submul_1)
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save %sp,-176,%sp
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sllx %i2, 3, %g2
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or %g0, %i1, %o1
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add %g2, 15, %o0
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or %g0, %i2, %o2
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and %o0, -16, %o0
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sub %sp, %o0, %sp
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add %sp, 2223, %o0
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or %g0, %o0, %l0
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call mpn_mul_1
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or %g0, %i3, %o3
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or %g0, %o0, %l1 C preserve carry value from mpn_mul_1
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or %g0, %i0, %o0
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or %g0, %i0, %o1
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or %g0, %l0, %o2
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call mpn_sub_n
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or %g0, %i2, %o3
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ret
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restore %l1, %o0, %o0 C sum carry values
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EPILOGUE(mpn_submul_1)
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