/* collection of junk waiting time to sort out
   Copyright (C) 1996-2019 Free Software Foundation, Inc.
   Contributed by Cygnus Support.

   This file is part of GDB, the GNU debugger.

   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 M32R_SIM_H
#define M32R_SIM_H

/* GDB register numbers.  */
#define PSW_REGNUM	16
#define CBR_REGNUM	17
#define SPI_REGNUM	18
#define SPU_REGNUM	19
#define BPC_REGNUM	20
#define PC_REGNUM	21
#define ACCL_REGNUM	22
#define ACCH_REGNUM	23
#define ACC1L_REGNUM	24
#define ACC1H_REGNUM	25
#define BBPSW_REGNUM	26
#define BBPC_REGNUM	27
#define EVB_REGNUM	28

extern int m32r_decode_gdb_ctrl_regnum (int);

/* Cover macros for hardware accesses.
   FIXME: Eventually move to cgen.  */
#define GET_H_SM() ((CPU (h_psw) & 0x80) != 0)

#ifndef GET_H_CR
extern USI  m32rbf_h_cr_get_handler (SIM_CPU *, UINT);
extern void m32rbf_h_cr_set_handler (SIM_CPU *, UINT, USI);

#define GET_H_CR(regno) \
  XCONCAT2 (WANT_CPU,_h_cr_get_handler) (current_cpu, (regno))
#define SET_H_CR(regno, val) \
  XCONCAT2 (WANT_CPU,_h_cr_set_handler) (current_cpu, (regno), (val))
#endif

#ifndef  GET_H_PSW
extern UQI  m32rbf_h_psw_get_handler (SIM_CPU *);
extern void m32rbf_h_psw_set_handler (SIM_CPU *, UQI);

#define GET_H_PSW() \
  XCONCAT2 (WANT_CPU,_h_psw_get_handler) (current_cpu)
#define SET_H_PSW(val) \
  XCONCAT2 (WANT_CPU,_h_psw_set_handler) (current_cpu, (val))
#endif

#ifndef  GET_H_ACCUM
extern DI   m32rbf_h_accum_get_handler (SIM_CPU *);
extern void m32rbf_h_accum_set_handler (SIM_CPU *, DI);

#define GET_H_ACCUM() \
  XCONCAT2 (WANT_CPU,_h_accum_get_handler) (current_cpu)
#define SET_H_ACCUM(val) \
  XCONCAT2 (WANT_CPU,_h_accum_set_handler) (current_cpu, (val))
#endif

/* Misc. profile data.  */

typedef struct {
  /* nop insn slot filler count */
  unsigned int fillnop_count;
  /* number of parallel insns */
  unsigned int parallel_count;

  /* FIXME: generalize this to handle all insn lengths, move to common.  */
  /* number of short insns, not including parallel ones */
  unsigned int short_count;
  /* number of long insns */
  unsigned int long_count;

  /* Working area for computing cycle counts.  */
  unsigned long insn_cycles; /* FIXME: delete */
  unsigned long cti_stall;
  unsigned long load_stall;
  unsigned long biggest_cycles;

  /* Bitmask of registers loaded by previous insn.  */
  unsigned int load_regs;
  /* Bitmask of registers loaded by current insn.  */
  unsigned int load_regs_pending;
} M32R_MISC_PROFILE;

/* Initialize the working area.  */
void m32r_init_insn_cycles (SIM_CPU *, int);
/* Update the totals for the insn.  */
void m32r_record_insn_cycles (SIM_CPU *, int);

/* This is invoked by the nop pattern in the .cpu file.  */
#define PROFILE_COUNT_FILLNOPS(cpu, addr) \
do { \
  if (PROFILE_INSN_P (cpu) \
      && (addr & 3) != 0) \
    ++ CPU_M32R_MISC_PROFILE (cpu)->fillnop_count; \
} while (0)

/* This is invoked by the execute section of mloop{,x}.in.  */
#define PROFILE_COUNT_PARINSNS(cpu) \
do { \
  if (PROFILE_INSN_P (cpu)) \
    ++ CPU_M32R_MISC_PROFILE (cpu)->parallel_count; \
} while (0)

/* This is invoked by the execute section of mloop{,x}.in.  */
#define PROFILE_COUNT_SHORTINSNS(cpu) \
do { \
  if (PROFILE_INSN_P (cpu)) \
    ++ CPU_M32R_MISC_PROFILE (cpu)->short_count; \
} while (0)

/* This is invoked by the execute section of mloop{,x}.in.  */
#define PROFILE_COUNT_LONGINSNS(cpu) \
do { \
  if (PROFILE_INSN_P (cpu)) \
    ++ CPU_M32R_MISC_PROFILE (cpu)->long_count; \
} while (0)

#define GETTWI GETTSI
#define SETTWI SETTSI

/* Additional execution support.  */


/* Hardware/device support.
   ??? Will eventually want to move device stuff to config files.  */

/* Exception, Interrupt, and Trap addresses */
#define EIT_SYSBREAK_ADDR	0x10
#define EIT_RSVD_INSN_ADDR	0x20
#define EIT_ADDR_EXCP_ADDR	0x30
#define EIT_TRAP_BASE_ADDR	0x40
#define EIT_EXTERN_ADDR		0x80
#define EIT_RESET_ADDR		0x7ffffff0
#define EIT_WAKEUP_ADDR		0x7ffffff0

/* Special purpose traps.  */
#define TRAP_SYSCALL	0
#define TRAP_BREAKPOINT	1

/* Handle the trap insn.  */
USI m32r_trap (SIM_CPU *, PCADDR, int);

#endif /* M32R_SIM_H */