[project @ 1998-06-05 14:44:06 by simonm]

[ghc-hetmet.git] / ghc / rts / gmp / mpn / pyr / mul_1.s

diff --git a/ghc/rts/gmp/mpn/pyr/mul_1.s b/ghc/rts/gmp/mpn/pyr/mul_1.s
new file mode 100644 (file)
index 0000000..e6b9791
--- /dev/null
+++ b/ghc/rts/gmp/mpn/pyr/mul_1.s
@@ -0,0 +1,42 @@
+# Pyramid __mpn_mul_1 -- Multiply a limb vector with a limb and store
+# the result in a second limb vector.
+
+# Copyright (C) 1995 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 Library General Public License as published by
+# the Free Software Foundation; either version 2 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 Library General Public
+# License for more details.
+
+# You should have received a copy of the GNU Library 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.
+
+.text
+       .align  2
+.globl ___mpn_mul_1
+___mpn_mul_1:
+       mova    (pr0)[pr2*4],pr0
+       mova    (pr1)[pr2*4],pr1
+       mnegw   pr2,pr2
+       movw    $0,tr3
+
+Loop:  movw    (pr1)[pr2*4],tr1
+       uemul   pr3,tr0
+       addw    tr3,tr1
+       movw    $0,tr3
+       addwc   tr0,tr3
+       movw    tr1,(pr0)[pr2*4]
+       addw    $1,pr2
+       bne     Loop
+
+       movw    tr3,pr0
+       ret