1 ! SH2 __gmpn_submul_1 -- Multiply a limb vector with a limb and subtract
2 ! the result from a second limb vector.
4 ! Copyright (C) 1995, 2000 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, write to
20 ! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
32 .global ___gmpn_submul_1
34 mov #0,r2 ! cy_limb = 0
35 mov #0,r0 ! Keep r0 = 0 for entire loop
41 addc r2,r1 ! lo_prod += old cy_limb
42 sts mach,r2 ! new cy_limb = hi_prod
44 addc r0,r2 ! cy_limb += T, T = 0
46 addc r0,r2 ! cy_limb += T, T = 0