| 1 | /* Register definitions for the FRV simulator |
| 2 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
| 3 | Contributed by Red Hat. |
| 4 | |
| 5 | This file is part of the GNU Simulators. |
| 6 | |
| 7 | This program 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 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program 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. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef REGISTERS_H |
| 21 | #define REGISTERS_H |
| 22 | |
| 23 | #define FRV_MAX_GR 64 |
| 24 | #define FRV_MAX_FR 64 |
| 25 | #define FRV_MAX_CPR 64 |
| 26 | #define FRV_MAX_SPR 4096 |
| 27 | |
| 28 | /* Register init, reset values and read_only masks. */ |
| 29 | typedef struct |
| 30 | { |
| 31 | USI init_value; /* initial value */ |
| 32 | USI reset_value; /* value for software reset */ |
| 33 | USI reset_mask; /* bits which are reset */ |
| 34 | USI read_only_mask; /* bits which are read-only */ |
| 35 | char implemented; /* 1==register is implemented */ |
| 36 | char supervisor; /* 1==register is supervisor-only */ |
| 37 | } FRV_SPR_CONTROL_INFO; |
| 38 | |
| 39 | typedef struct |
| 40 | { |
| 41 | int fr; /* FR registers implemented */ |
| 42 | int cpr; /* coprocessor registers implemented */ |
| 43 | FRV_SPR_CONTROL_INFO *spr; /* SPR implementation details */ |
| 44 | } FRV_REGISTER_CONTROL; |
| 45 | |
| 46 | void frv_register_control_init (SIM_CPU *); |
| 47 | void frv_initialize_spr (SIM_CPU *); |
| 48 | void frv_reset_spr (SIM_CPU *); |
| 49 | |
| 50 | void frv_check_spr_access (SIM_CPU *, UINT); |
| 51 | |
| 52 | void frv_fr_registers_available (SIM_CPU *, int *, int *); |
| 53 | void frv_gr_registers_available (SIM_CPU *, int *, int *); |
| 54 | int frv_check_register_access (SIM_CPU *, SI, int, int); |
| 55 | int frv_check_gr_access (SIM_CPU *, SI); |
| 56 | int frv_check_fr_access (SIM_CPU *, SI); |
| 57 | |
| 58 | #endif /* REGISTERS_H */ |