1 dnl ARM mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
2 dnl store difference in a third limb vector.
3 dnl Contributed by Robert Harley.
5 dnl Copyright 1997, 2000, 2001 Free Software Foundation, Inc.
7 dnl This file is part of the GNU MP Library.
9 dnl The GNU MP Library is free software; you can redistribute it and/or modify
10 dnl it under the terms of the GNU Lesser General Public License as published
11 dnl by the Free Software Foundation; either version 3 of the License, or (at
12 dnl your option) any later version.
14 dnl The GNU MP Library is distributed in the hope that it will be useful, but
15 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17 dnl License for more details.
19 dnl You should have received a copy of the GNU Lesser General Public License
20 dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
22 include(`../config.m4')
24 C This code runs at 5 cycles/limb.
34 stmfd sp!, { r8, r9, lr }
46 ldmia vp!, { r12, lr }
53 stmfd sp!, { r4, r5, r6, r7 }
55 ldmia up!, { r4, r5, r6, r7 }
56 ldmia vp!, { r8, r9, r12, lr }
58 ldr r8, [rp, #12] C cache allocate
62 stmia rp!, { r4, r5, r6, r7 }
66 ldmfd sp!, { r4, r5, r6, r7 }
70 ldmfd sp!, { r8, r9, pc }