1 /* SPARC v9 __mpn_mul_1 -- Multiply a limb vector with a single limb and
2 store the product in a second limb vector.
4 Copyright (C) 1995-2014 Free Software Foundation, Inc.
6 This file is part of the GNU MP Library.
8 The GNU MP Library is free software; you can redistribute it and/or modify
9 it under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or (at your
11 option) any later version.
13 The GNU MP Library is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
16 License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with the GNU MP Library; see the file COPYING.LIB. If not,
20 see <http://www.gnu.org/licenses/>. */
40 mov 0,%o0 ! zero cy_limb
42 srl %i3,0,%o1 ! extract low 32 bits of s2_limb
43 srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
45 sllx %o2,32,%o2 ! o2 = 0x100000000
54 srl %g5,0,%i0 ! zero hi bits
56 mulx %o1,%i0,%i4 ! lo product
57 mulx %i3,%i0,%i1 ! mid-1 product
58 mulx %o1,%g5,%l2 ! mid-2 product
59 mulx %i3,%g5,%i5 ! hi product
60 srlx %i4,32,%i0 ! extract high 32 bits of lo product...
61 add %i1,%i0,%i1 ! ...and add it to the mid-1 product
62 addcc %i1,%l2,%i1 ! add mid products
63 mov 0,%l0 ! we need the carry from that add...
64 movcs %xcc,%o2,%l0 ! ...compute it and...
65 add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
66 sllx %i1,32,%i0 ! align low bits of mid product
67 srl %i4,0,%g5 ! zero high 32 bits of lo product
68 add %i0,%g5,%i0 ! combine into low 64 bits of result
69 srlx %i1,32,%i1 ! extract high bits of mid product...
70 add %i5,%i1,%i1 ! ...and add them to the high result
71 addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
77 add %i1,%g5,%o0 ! compute new cy_limb