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851c0536 LM |
1 | /* maverick.h -- Cirrus/DSP co-processor interface header |
2 | Copyright (C) 2003-2019 Free Software Foundation, Inc. | |
3 | Contributed by Aldy Hernandez (aldyh@redhat.com). | |
4 | ||
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | /* Define Co-Processor instruction handlers here. */ | |
19 | ||
20 | /* Here's ARMulator's DSP definition. A few things to note: | |
21 | 1) it has 16 64-bit registers and 4 72-bit accumulators | |
22 | 2) you can only access its registers with MCR and MRC. */ | |
23 | ||
24 | struct maverick_regs | |
25 | { | |
26 | union | |
27 | { | |
28 | int i; | |
29 | float f; | |
30 | } upper; | |
31 | ||
32 | union | |
33 | { | |
34 | int i; | |
35 | float f; | |
36 | } lower; | |
37 | }; | |
38 | ||
39 | union maverick_acc_regs | |
40 | { | |
41 | long double ld; /* Acc registers are 72-bits. */ | |
42 | }; | |
43 | ||
44 | extern struct maverick_regs DSPregs[16]; | |
45 | extern union maverick_acc_regs DSPacc[4]; | |
46 | extern ARMword DSPsc; |