1 /* libgcc functions for Blackfin.
2 Copyright (C) 2005 Free Software Foundation, Inc.
3 Contributed by Analog Devices.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
22 /* As a special exception, if you link this library with files
23 compiled with GCC to produce an executable, this does not cause
24 the resulting executable to be covered by the GNU General Public License.
25 This exception does not however invalidate any other reasons why
26 the executable file might be covered by the GNU General Public License. */
33 .type ___divsi3, STT_FUNC;
64 .type ___modsi3, STT_FUNC;
82 .type ___udivsi3, STT_FUNC;
86 LSETUP (0f, 1f) LC0 = P0;
87 /* upper half of dividend */
90 /* The first time round in the loop we shift in garbage, but since we
91 perform 33 shifts, it doesn't matter. */
97 /* Last instruction of the loop. */
100 /* Shift in the last bit. */
102 /* R0 is the result, R3 contains the remainder. */
110 .type ___umodsi3, STT_FUNC;
120 #ifdef L_umulsi3_highpart
122 .global ___umulsi3_highpart;
123 .type ___umulsi3_highpart, STT_FUNC;
126 A1 = R1.L * R0.L (FU);
128 A0 = R1.H * R0.H, A1 += R1.L * R0.H (FU);
129 A1 += R0.L * R1.H (FU);
136 #ifdef L_smulsi3_highpart
138 .global ___smulsi3_highpart;
139 .type ___smulsi3_highpart, STT_FUNC;
142 A1 = R1.L * R0.L (FU);
144 A0 = R0.H * R1.H, A1 += R0.H * R1.L (IS,M);
145 A1 += R1.H * R0.L (IS,M);