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! SPARC __mpn_addmul_1 -- Multiply a limb vector with a limb and add
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! the result to a second limb vector.
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!
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! Copyright (C) 1992-2018 Free Software Foundation, Inc.
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!
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! This file is part of the GNU MP Library.
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!
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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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!
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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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!
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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,
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! see <http://www.gnu.org/licenses/>.
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! INPUT PARAMETERS
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! RES_PTR o0
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! S1_PTR o1
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! SIZE o2
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! S2_LIMB o3
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#include <sysdep.h>
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ENTRY(__mpn_addmul_1)
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! Make S1_PTR and RES_PTR point at the end of their blocks
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! and put (- 4 x SIZE) in index/loop counter.
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sll %o2,2,%o2
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add %o0,%o2,%o4 ! RES_PTR in o4 since o0 is retval
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add %o1,%o2,%o1
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sub %g0,%o2,%o2
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cmp %o3,0xfff
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bgu LOC(large)
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nop
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ld [%o1+%o2],%o5
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mov 0,%o0
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b LOC(0)
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add %o4,-4,%o4
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LOC(loop0):
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addcc %o5,%g1,%g1
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ld [%o1+%o2],%o5
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addx %o0,%g0,%o0
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st %g1,[%o4+%o2]
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LOC(0): wr %g0,%o3,%y
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sra %o5,31,%g2
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and %o3,%g2,%g2
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andcc %g1,0,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,%o5,%g1
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mulscc %g1,0,%g1
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sra %g1,20,%g4
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sll %g1,12,%g1
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rd %y,%g3
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srl %g3,20,%g3
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or %g1,%g3,%g1
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addcc %g1,%o0,%g1
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addx %g2,%g4,%o0 ! add sign-compensation and cy to hi limb
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addcc %o2,4,%o2 ! loop counter
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bne LOC(loop0)
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ld [%o4+%o2],%o5
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addcc %o5,%g1,%g1
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addx %o0,%g0,%o0
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retl
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st %g1,[%o4+%o2]
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LOC(large):
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ld [%o1+%o2],%o5
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mov 0,%o0
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sra %o3,31,%g4 ! g4 = mask of ones iff S2_LIMB < 0
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b LOC(1)
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add %o4,-4,%o4
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LOC(loop):
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addcc %o5,%g3,%g3
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ld [%o1+%o2],%o5
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addx %o0,%g0,%o0
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st %g3,[%o4+%o2]
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LOC(1): wr %g0,%o5,%y
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and %o5,%g4,%g2
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andcc %g0,%g0,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%o3,%g1
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mulscc %g1,%g0,%g1
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rd %y,%g3
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addcc %g3,%o0,%g3
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addx %g2,%g1,%o0
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addcc %o2,4,%o2
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bne LOC(loop)
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ld [%o4+%o2],%o5
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addcc %o5,%g3,%g3
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addx %o0,%g0,%o0
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retl
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st %g3,[%o4+%o2]
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END(__mpn_addmul_1)
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