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/* Remote debugging interface for Hitachi HMS Monitor Version 1.0

   Copyright 1995, 1996, 1998, 1999, 2000, 2001

   Free Software Foundation, Inc.

   Contributed by Cygnus Support.  Written by Steve Chamberlain

   (sac@cygnus.com).

   This file is part of GDB.

   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 2 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, write to the Free Software

   Foundation, Inc., 59 Temple Place - Suite 330,

   Boston, MA 02111-1307, USA.  */

#include "defs.h"

#include "gdbcore.h"

#include "target.h"

#include "monitor.h"

#include "serial.h"

#include "regcache.h"

static void hms_open (char *args, int from_tty);

static void

hms_supply_register (char *regname, int regnamelen, char *val, int vallen)

{

  int regno;

  if (regnamelen != 2)

    return;

  if (regname[0] != 'P')

    return;

  /* We scan off all the registers in one go */

  val = monitor_supply_register (PC_REGNUM, val);

  /* Skip the ccr string */

  while (*val != '=' && *val)

    val++;

  val = monitor_supply_register (CCR_REGNUM, val + 1);

  /* Skip up to rest of regs */

  while (*val != '=' && *val)

    val++;

  for (regno = 0; regno < 7; regno++)

    {

      val = monitor_supply_register (regno, val + 1);

    }

}

/*

 * This array of registers needs to match the indexes used by GDB. The

 * whole reason this exists is because the various ROM monitors use

 * different names than GDB does, and don't support all the

 * registers either. So, typing "info reg sp" becomes a "r30".

 */

static char *hms_regnames[NUM_REGS] =

{

  "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7", "CCR", "PC"

};

/*

 * Define the monitor command strings. Since these are passed directly

 * through to a printf style function, we need can include formatting

 * strings. We also need a CR or LF on the end.

 */

static struct target_ops hms_ops;

static char *hms_inits[] =

{"\003",                        /* Resets the prompt, and clears repeated cmds */

 NULL};

static struct monitor_ops hms_cmds;

static void

init_hms_cmds (void)

{

  hms_cmds.flags = MO_CLR_BREAK_USES_ADDR | MO_FILL_USES_ADDR | MO_GETMEM_NEEDS_RANGE;

  hms_cmds.init = hms_inits;    /* Init strings */

  hms_cmds.cont = "g\r";        /* continue command */

  hms_cmds.step = "s\r";        /* single step */

  hms_cmds.stop = "\003";       /* ^C interrupts the program */

  hms_cmds.set_break = "b %x\r";        /* set a breakpoint */

  hms_cmds.clr_break = "b - %x\r";      /* clear a breakpoint */

  hms_cmds.clr_all_break = "b -\r";     /* clear all breakpoints */

  hms_cmds.fill = "f %x %x %x\r";       /* fill (start end val) */

  hms_cmds.setmem.cmdb = "m.b %x=%x\r";         /* setmem.cmdb (addr, value) */

  hms_cmds.setmem.cmdw = "m.w %x=%x\r";         /* setmem.cmdw (addr, value) */

  hms_cmds.setmem.cmdl = NULL;  /* setmem.cmdl (addr, value) */

  hms_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */

  hms_cmds.setmem.resp_delim = NULL;    /* setreg.resp_delim */

  hms_cmds.setmem.term = NULL;  /* setreg.term */

  hms_cmds.setmem.term_cmd = NULL;      /* setreg.term_cmd */

  hms_cmds.getmem.cmdb = "m.b %x %x\r";         /* getmem.cmdb (addr, addr) */

  hms_cmds.getmem.cmdw = "m.w %x %x\r";         /* getmem.cmdw (addr, addr) */

  hms_cmds.getmem.cmdl = NULL;  /* getmem.cmdl (addr, addr) */

  hms_cmds.getmem.cmdll = NULL; /* getmem.cmdll (addr, addr) */

  hms_cmds.getmem.resp_delim = ": ";    /* getmem.resp_delim */

  hms_cmds.getmem.term = ">";   /* getmem.term */

  hms_cmds.getmem.term_cmd = "\003";    /* getmem.term_cmd */

  hms_cmds.setreg.cmd = "r %s=%x\r";    /* setreg.cmd (name, value) */

  hms_cmds.setreg.resp_delim = NULL;    /* setreg.resp_delim */

  hms_cmds.setreg.term = NULL;  /* setreg.term */

  hms_cmds.setreg.term_cmd = NULL;      /* setreg.term_cmd */

  hms_cmds.getreg.cmd = "r %s\r";       /* getreg.cmd (name) */

  hms_cmds.getreg.resp_delim = " (";    /* getreg.resp_delim */

  hms_cmds.getreg.term = ":";   /* getreg.term */

  hms_cmds.getreg.term_cmd = "\003";    /* getreg.term_cmd */

  hms_cmds.dump_registers = "r\r";      /* dump_registers */

  hms_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)";  /* register_pattern */

  hms_cmds.supply_register = hms_supply_register;       /* supply_register */

  hms_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */

  hms_cmds.load = "tl\r";       /* download command */

  hms_cmds.loadresp = NULL;     /* load response */

  hms_cmds.prompt = ">";        /* monitor command prompt */

  hms_cmds.line_term = "\r";    /* end-of-command delimitor */

  hms_cmds.cmd_end = NULL;      /* optional command terminator */

  hms_cmds.target = &hms_ops;   /* target operations */

  hms_cmds.stopbits = SERIAL_1_STOPBITS;        /* number of stop bits */

  hms_cmds.regnames = hms_regnames;     /* registers names */

  hms_cmds.magic = MONITOR_OPS_MAGIC;   /* magic */

}                               /* init_hms-cmds */

static void

hms_open (char *args, int from_tty)

{

  monitor_open (args, &hms_cmds, from_tty);

}

int write_dos_tick_delay;

void

_initialize_remote_hms (void)

{

  init_hms_cmds ();

  init_monitor_ops (&hms_ops);

  hms_ops.to_shortname = "hms";

  hms_ops.to_longname = "Hitachi Microsystems H8/300 debug monitor";

  hms_ops.to_doc = "Debug via the HMS monitor.\n\

Specify the serial device it is connected to (e.g. /dev/ttya).";

  hms_ops.to_open = hms_open;

  /* By trial and error I've found that this delay doesn't break things */

  write_dos_tick_delay = 1;

  add_target (&hms_ops);

}