sim/frv/registers.h

   1 /* Register definitions for the FRV simulator
   2    Copyright (C) 2000 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 2, or (at your option)
  10 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 along
  18 with this program; if not, write to the Free Software Foundation, Inc.,
  19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  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.  */
  30 typedef 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
  40 typedef 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
  47 void frv_register_control_init (SIM_CPU *);
  48 void frv_initialize_spr (SIM_CPU *);
  49 void frv_reset_spr (SIM_CPU *);
  50
  51 void frv_check_spr_access (SIM_CPU *, UINT);
  52
  53 void frv_fr_registers_available (SIM_CPU *, int *, int *);
  54 void frv_gr_registers_available (SIM_CPU *, int *, int *);
  55 int  frv_check_register_access (SIM_CPU *, SI, int, int);
  56 int  frv_check_gr_access (SIM_CPU *, SI);
  57 int  frv_check_fr_access (SIM_CPU *, SI);
  58
  59 #endif /* REGISTERS_H */