Imported gcc-4.4.3

[msp430-gcc.git] / gmp / mpn / generic / mullow_basecase.c

diff --git a/gmp/mpn/generic/mullow_basecase.c b/gmp/mpn/generic/mullow_basecase.c
new file mode 100644 (file)
index 0000000..72c48f6
--- /dev/null
+++ b/gmp/mpn/generic/mullow_basecase.c
@@ -0,0 +1,41 @@
+/* mpn_mullow_basecase -- Internal routine to multiply two natural
+   numbers of length m and n and return the low part.
+
+   THIS IS AN INTERNAL FUNCTION WITH A MUTABLE INTERFACE.  IT IS ONLY
+   SAFE TO REACH THIS FUNCTION THROUGH DOCUMENTED INTERFACES.
+
+
+Copyright (C) 2000, 2002, 2004 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 3 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.  If not, see http://www.gnu.org/licenses/.  */
+
+#include "gmp.h"
+#include "gmp-impl.h"
+
+/*
+  FIXME: Should use mpn_addmul_2 (and higher).
+*/
+
+void
+mpn_mullow_basecase (mp_ptr rp, mp_srcptr up, mp_srcptr vp, mp_size_t n)
+{
+  mp_size_t i;
+
+  mpn_mul_1 (rp, up, n, vp[0]);
+
+  for (i = 1; i < n; i++)
+    mpn_addmul_1 (rp + i, up, n - i, vp[i]);
+}