1/* Register definitions for the FRV simulator 2 Copyright (C) 2000, 2007 Free Software Foundation, Inc. 3 Contributed by Red Hat. 4 5This file is part of the GNU Simulators. 6 7This program is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3 of the License, or 10(at your option) any later version. 11 12This program is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along 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. */ 29typedef 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 39typedef 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 46void frv_register_control_init (SIM_CPU *); 47void frv_initialize_spr (SIM_CPU *); 48void frv_reset_spr (SIM_CPU *); 49 50void frv_check_spr_access (SIM_CPU *, UINT); 51 52void frv_fr_registers_available (SIM_CPU *, int *, int *); 53void frv_gr_registers_available (SIM_CPU *, int *, int *); 54int frv_check_register_access (SIM_CPU *, SI, int, int); 55int frv_check_gr_access (SIM_CPU *, SI); 56int frv_check_fr_access (SIM_CPU *, SI); 57 58#endif /* REGISTERS_H */ 59