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