+++ /dev/null
-dnl SPARC mpn_submul_1 -- Multiply a limb vector with a limb and subtract
-dnl the result from a second limb vector.
-
-dnl Copyright (C) 1992, 1993, 1994, 2000 Free Software Foundation, Inc.
-
-dnl This file is part of the GNU MP Library.
-
-dnl The GNU MP Library is free software; you can redistribute it and/or modify
-dnl it under the terms of the GNU Lesser General Public License as published
-dnl by the Free Software Foundation; either version 2.1 of the License, or (at
-dnl your option) any later version.
-
-dnl The GNU MP Library is distributed in the hope that it will be useful, but
-dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
-dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
-dnl License for more details.
-
-dnl You should have received a copy of the GNU Lesser General Public License
-dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write to
-dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-dnl MA 02111-1307, USA.
-
-
-include(`../config.m4')
-
-C INPUT PARAMETERS
-C res_ptr o0
-C s1_ptr o1
-C size o2
-C s2_limb o3
-
-ASM_START()
-PROLOGUE(mpn_submul_1)
- C Make S1_PTR and RES_PTR point at the end of their blocks
- C and put (- 4 x SIZE) in index/loop counter.
- sll %o2,2,%o2
- add %o0,%o2,%o4 C RES_PTR in o4 since o0 is retval
- add %o1,%o2,%o1
- sub %g0,%o2,%o2
-
- cmp %o3,0xfff
- bgu L(large)
- nop
-
- ld [%o1+%o2],%o5
- mov 0,%o0
- b L(0)
- add %o4,-4,%o4
-L(loop0):
- subcc %o5,%g1,%g1
- ld [%o1+%o2],%o5
- addx %o0,%g0,%o0
- st %g1,[%o4+%o2]
-L(0): wr %g0,%o3,%y
- sra %o5,31,%g2
- and %o3,%g2,%g2
- andcc %g1,0,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,%o5,%g1
- mulscc %g1,0,%g1
- sra %g1,20,%g4
- sll %g1,12,%g1
- rd %y,%g3
- srl %g3,20,%g3
- or %g1,%g3,%g1
-
- addcc %g1,%o0,%g1
- addx %g2,%g4,%o0 C add sign-compensation and cy to hi limb
- addcc %o2,4,%o2 C loop counter
- bne L(loop0)
- ld [%o4+%o2],%o5
-
- subcc %o5,%g1,%g1
- addx %o0,%g0,%o0
- retl
- st %g1,[%o4+%o2]
-
-L(large):
- ld [%o1+%o2],%o5
- mov 0,%o0
- sra %o3,31,%g4 C g4 = mask of ones iff S2_LIMB < 0
- b L(1)
- add %o4,-4,%o4
-L(loop):
- subcc %o5,%g3,%g3
- ld [%o1+%o2],%o5
- addx %o0,%g0,%o0
- st %g3,[%o4+%o2]
-L(1): wr %g0,%o5,%y
- and %o5,%g4,%g2
- andcc %g0,%g0,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%o3,%g1
- mulscc %g1,%g0,%g1
- rd %y,%g3
- addcc %g3,%o0,%g3
- addx %g2,%g1,%o0
- addcc %o2,4,%o2
- bne L(loop)
- ld [%o4+%o2],%o5
-
- subcc %o5,%g3,%g3
- addx %o0,%g0,%o0
- retl
- st %g3,[%o4+%o2]
-EPILOGUE(mpn_submul_1)