| 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; |