diff options
Diffstat (limited to 'rts/gmp/mpn/cray/submul_1.c')
-rw-r--r-- | rts/gmp/mpn/cray/submul_1.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/rts/gmp/mpn/cray/submul_1.c b/rts/gmp/mpn/cray/submul_1.c new file mode 100644 index 0000000000..4d2fb13c62 --- /dev/null +++ b/rts/gmp/mpn/cray/submul_1.c @@ -0,0 +1,46 @@ +/* mpn_submul_1 for Cray PVP. + +Copyright (C) 1996, 2000 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of the GNU Lesser General Public License as published by +the Free Software Foundation; either version 2.1 of the License, or (at your +option) any later version. + +The GNU MP Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MP Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + + +#include "gmp.h" +#include "gmp-impl.h" + +mp_limb_t +mpn_submul_1 (mp_ptr rp, mp_srcptr up, mp_size_t n, mp_limb_t limb) +{ + mp_ptr p0, p1, tp; + mp_limb_t cy_limb; + TMP_DECL (marker); + TMP_MARK (marker); + + p1 = TMP_ALLOC (n * BYTES_PER_MP_LIMB); + p0 = TMP_ALLOC (n * BYTES_PER_MP_LIMB); + tp = TMP_ALLOC (n * BYTES_PER_MP_LIMB); + + GMPN_MULWW (p1, p0, up, &n, &limb); + cy_limb = mpn_sub_n (tp, rp, p0, n); + rp[0] = tp[0]; + cy_limb += mpn_sub_n (rp + 1, tp + 1, p1, n - 1); + cy_limb += p1[n - 1]; + + TMP_FREE (marker); + return cy_limb; +} |