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dnl MIPS3 mpn_submul_1 -- Multiply a limb vector with a single limb and
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dnl subtract the product from a second limb vector.
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dnl Copyright 1992, 1994, 1995, 2000, 2001 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 to
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dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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dnl MA 02111-1307, USA.
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include(`../config.m4')
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PROLOGUE(mpn_submul_1)
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ld $8,0($5) C load new s1 limb as early as possible
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daddu $3,$3,$2 C add old carry limb to low product limb
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ld $8,0($5) C load new s1 limb as early as possible
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daddiu $6,$6,-1 C decrement loop counter
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sltu $2,$3,$2 C carry from previous addition -> $2
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daddu $2,$9,$2 C add high product limb and carry from addition
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daddu $2,$9,$2 C add high product limb and carry from addition
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daddu $2,$9,$2 C add high product limb and carry from addition
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EPILOGUE(mpn_submul_1)