1/* Register definitions for the FRV simulator 2 Copyright (C) 2000, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Red Hat. 5 6This file is part of the GNU Simulators. 7 8This program is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 3 of the License, or 11(at your option) any later version. 12 13This program is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with this program. If not, see <http://www.gnu.org/licenses/>. */ 20 21#ifndef REGISTERS_H 22#define REGISTERS_H 23 24#define FRV_MAX_GR 64 25#define FRV_MAX_FR 64 26#define FRV_MAX_CPR 64 27#define FRV_MAX_SPR 4096 28 29/* Register init, reset values and read_only masks. */ 30typedef struct 31{ 32 USI init_value; /* initial value */ 33 USI reset_value; /* value for software reset */ 34 USI reset_mask; /* bits which are reset */ 35 USI read_only_mask; /* bits which are read-only */ 36 char implemented; /* 1==register is implemented */ 37 char supervisor; /* 1==register is supervisor-only */ 38} FRV_SPR_CONTROL_INFO; 39 40typedef struct 41{ 42 int fr; /* FR registers implemented */ 43 int cpr; /* coprocessor registers implemented */ 44 FRV_SPR_CONTROL_INFO *spr; /* SPR implementation details */ 45} FRV_REGISTER_CONTROL; 46 47void frv_register_control_init (SIM_CPU *); 48void frv_initialize_spr (SIM_CPU *); 49void frv_reset_spr (SIM_CPU *); 50 51void frv_check_spr_access (SIM_CPU *, UINT); 52 53void frv_fr_registers_available (SIM_CPU *, int *, int *); 54void frv_gr_registers_available (SIM_CPU *, int *, int *); 55int frv_check_register_access (SIM_CPU *, SI, int, int); 56int frv_check_gr_access (SIM_CPU *, SI); 57int frv_check_fr_access (SIM_CPU *, SI); 58 59#endif /* REGISTERS_H */ 60