c Helper for mpn_mul_1, mpn_addmul_1, and mpn_submul_1 for Cray PVP.
c Copyright 1996, 2000 Free Software Foundation, Inc.
c This file is part of the GNU MP Library.
c The GNU MP Library is free software; you can redistribute it and/or
c modify it under the terms of the GNU Lesser General Public License as
c published by the Free Software Foundation; either version 2.1 of the
c License, or (at your option) any later version.
c The GNU MP Library is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
c Lesser General Public License for more details.
c You should have received a copy of the GNU Lesser General Public
c License along with the GNU MP Library; see the file COPYING.LIB. If
c not, write to the Free Software Foundation, Inc., 59 Temple Place -
c Suite 330, Boston, MA 02111-1307, USA.
c p1 = hi(a*s); the upper limbs of each product
c p0 = low(a*s); the corresponding lower limbs
c n is number of limbs in the vectors
s0 = shiftl(and(s,4194303),24)
s1 = shiftl(and(shiftr(s,22),4194303),24)
s2 = shiftl(and(shiftr(s,44),4194303),24)
do i = 0,n-1
ai = a(i)
a0 = shiftl(and(ai,4194303),24)
a1 = shiftl(and(shiftr(ai,22),4194303),24)
a2 = shiftl(and(shiftr(ai,44),4194303),24)
t0 = i24mult(a0,s0)
t1 = i24mult(a0,s1)+i24mult(a1,s0)
t2 = i24mult(a0,s2)+i24mult(a1,s1)+i24mult(a2,s0)
t3 = i24mult(a1,s2)+i24mult(a2,s1)
t4 = i24mult(a2,s2)