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/* Register definitions for the FRV simulator
Copyright (C) 2000-2024 Free Software Foundation, Inc.
Contributed by Red Hat.
This file is part of the GNU Simulators.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef REGISTERS_H
#define REGISTERS_H
#define FRV_MAX_GR 64
#define FRV_MAX_FR 64
#define FRV_MAX_CPR 64
#define FRV_MAX_SPR 4096
/* Register init, reset values and read_only masks. */
typedef struct
{
USI init_value; /* initial value */
USI reset_value; /* value for software reset */
USI reset_mask; /* bits which are reset */
USI read_only_mask; /* bits which are read-only */
char implemented; /* 1==register is implemented */
char supervisor; /* 1==register is supervisor-only */
} FRV_SPR_CONTROL_INFO;
typedef struct
{
int fr; /* FR registers implemented */
int cpr; /* coprocessor registers implemented */
FRV_SPR_CONTROL_INFO *spr; /* SPR implementation details */
} FRV_REGISTER_CONTROL;
void frv_register_control_init (SIM_CPU *);
void frv_initialize_spr (SIM_CPU *);
void frv_reset_spr (SIM_CPU *);
void frv_check_spr_access (SIM_CPU *, UINT);
void frv_check_spr_read_access (SIM_CPU *, UINT);
void frv_check_spr_write_access (SIM_CPU *, UINT);
void frv_fr_registers_available (SIM_CPU *, int *, int *);
void frv_gr_registers_available (SIM_CPU *, int *, int *);
int frv_check_register_access (SIM_CPU *, SI, int, int);
int frv_check_gr_access (SIM_CPU *, SI);
int frv_check_fr_access (SIM_CPU *, SI);
#endif /* REGISTERS_H */
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