Initial creation of sourceware repository

1 files changed, 0 insertions, 1673 deletions

diff --git a/gdb/remote-mm.c b/gdb/remote-mm.c
deleted file mode 100644
index 19455b4..0000000
--- a/gdb/remote-mm.c
+++ /dev/null
@@ -1,1673 +0,0 @@
-/* Remote debugging interface for Am290*0 running MiniMON monitor, for GDB.
-   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
-   Originally written by Daniel Mann at AMD.
-
-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.  */
-
-/* This is like remote.c but ecpects MiniMON to be running on the Am29000 
-   target hardware.
- - David Wood (wood@lab.ultra.nyu.edu) at New York University adapted this
-	file to gdb 3.95.  I was unable to get this working on sun3os4
-	with termio, only with sgtty.  Because we are only attempting to
-	use this module to debug our kernel, which is already loaded when
-	gdb is started up, I did not code up the file downloading facilities.  
-	As a result this module has only the stubs to download files. 
-	You should get tagged at compile time if you need to make any 
-	changes/additions.  */
- 
-#include "defs.h"
-#include "inferior.h"
-#include "wait.h"
-#include "value.h"
-#include <ctype.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <errno.h>
-#include "gdb_string.h"
-#include "terminal.h"
-#include "minimon.h"
-#include "target.h"
-
-/* Offset of member MEMBER in a struct of type TYPE.  */
-#define offsetof(TYPE, MEMBER) ((int) &((TYPE *)0)->MEMBER)
-
-#define DRAIN_INPUT()	(msg_recv_serial((union msg_t*)0))
-
-extern int stop_soon_quietly;           /* for wait_for_inferior */
-
-static void mm_resume();
-static void mm_fetch_registers ();
-static int fetch_register ();
-static void mm_store_registers ();
-static int store_register ();
-static int regnum_to_srnum();
-static void  mm_close ();
-static char* msg_str();
-static char* error_msg_str();
-static int expect_msg();
-static void init_target_mm();
-static int mm_memory_space();
-
-#define FREEZE_MODE     (read_register(CPS_REGNUM) && 0x400)
-#define USE_SHADOW_PC	((processor_type == a29k_freeze_mode) && FREEZE_MODE)
-
-/* FIXME: Replace with `set remotedebug'.  */
-#define LLOG_FILE "minimon.log"
-#if defined (LOG_FILE)
-FILE *log_file;
-#endif
-
-/*  
- * Size of message buffers.  I couldn't get memory reads to work when
- * the byte_count was larger than 512 (it may be a baud rate problem).
- */
-#define BUFER_SIZE  512		
-/* 
- * Size of data area in message buffer on the TARGET (remote system).
- */
-#define MAXDATA_T  (target_config.max_msg_size - \
-			offsetof(struct write_r_msg_t,data[0]))
-/*		 
- * Size of data area in message buffer on the HOST (gdb). 
- */
-#define MAXDATA_H  (BUFER_SIZE - offsetof(struct write_r_msg_t,data[0]))
-/* 
- * Defined as the minimum size of data areas of the two message buffers 
- */
-#define MAXDATA	   (MAXDATA_H < MAXDATA_T ? MAXDATA_H : MAXDATA_T)
-
-static char out_buf[BUFER_SIZE];
-static char  in_buf[BUFER_SIZE];
-
-int msg_recv_serial();
-int msg_send_serial();
-
-#define MAX_RETRIES 5000
-extern struct target_ops mm_ops;             /* Forward declaration */
-struct config_msg_t  target_config;	/* HIF needs this */
-union msg_t  *out_msg_buf = (union msg_t*)out_buf;
-union msg_t  *in_msg_buf  = (union msg_t*)in_buf;
-
-static int timeout = 5;
-
-/* Descriptor for I/O to remote machine.  Initialize it to -1 so that
-   mm_open knows that we don't have a file open when the program
-   starts.  */
-int mm_desc = -1;
-
-/* stream which is fdopen'd from mm_desc.  Only valid when
-   mm_desc != -1.  */
-FILE *mm_stream;
-
-/* Called when SIGALRM signal sent due to alarm() timeout.  */
-#ifndef HAVE_TERMIO
-
-#ifndef __STDC__
-# ifndef volatile
-#  define volatile /**/
-# endif
-#endif
-volatile int n_alarms;
-
-static void
-mm_timer ()
-{
-#if 0
-  if (kiodebug)
-    printf ("mm_timer called\n");
-#endif
-  n_alarms++;
-}
-#endif	/* HAVE_TERMIO */
-
-/* malloc'd name of the program on the remote system.  */
-static char *prog_name = NULL;
-
-
-/* Number of SIGTRAPs we need to simulate.  That is, the next
-   NEED_ARTIFICIAL_TRAP calls to mm_wait should just return
-   SIGTRAP without actually waiting for anything.  */
-
-/**************************************************** REMOTE_CREATE_INFERIOR */
-/* This is called not only when we first attach, but also when the
-   user types "run" after having attached.  */
-static void
-mm_create_inferior (execfile, args, env)
-     char *execfile;
-     char *args;
-     char **env;
-{
-#define MAX_TOKENS 25
-#define BUFFER_SIZE 256
-   int	token_count;
-   int	result;
-   char	*token[MAX_TOKENS];
-   char	cmd_line[BUFFER_SIZE];
-
-  if (args && *args)
-    error ("Can't pass arguments to remote mm process (yet).");
-
-  if (execfile == 0 /* || exec_bfd == 0 */ )
-    error ("No executable file specified");
-
-  if (!mm_stream) {
-        printf("Minimon not open yet.\n");
-	return;
-  }
-
-  /* On ultra3 (NYU) we assume the kernel is already running so there is
-     no file to download.
-     FIXME: Fixed required here -> load your program, possibly with mm_load().
-     */
-  printf_filtered ("\n\
-Assuming you are at NYU debuging a kernel, i.e., no need to download.\n\n");
-
-  /* We will get a task spawn event immediately.  */
-  init_wait_for_inferior ();
-  clear_proceed_status ();
-  stop_soon_quietly = 1;
-  proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
-  normal_stop ();
-}
-/**************************************************** REMOTE_MOURN_INFERIOR */
-static void
-mm_mourn()
-{
-        pop_target ();                /* Pop back to no-child state */
-        generic_mourn_inferior ();
-}
-
-/********************************************************************** damn_b
-*/
-/* Translate baud rates from integers to damn B_codes.  Unix should
-   have outgrown this crap years ago, but even POSIX wouldn't buck it.  */
-
-#ifndef B19200
-#define B19200 EXTA
-#endif
-#ifndef B38400
-#define B38400 EXTB
-#endif
-
-static struct {int rate, damn_b;} baudtab[] = {
-	{0, B0},
-	{50, B50},
-	{75, B75},
-	{110, B110},
-	{134, B134},
-	{150, B150},
-	{200, B200},
-	{300, B300},
-	{600, B600},
-	{1200, B1200},
-	{1800, B1800},
-	{2400, B2400},
-	{4800, B4800},
-	{9600, B9600},
-	{19200, B19200},
-	{38400, B38400},
-	{-1, -1},
-};
-
-static int damn_b (rate)
-     int rate;
-{
-  int i;
-
-  for (i = 0; baudtab[i].rate != -1; i++)
-    if (rate == baudtab[i].rate) return baudtab[i].damn_b;
-  return B38400;	/* Random */
-}
-
-
-/***************************************************************** REMOTE_OPEN
-** Open a connection to remote minimon.
-   NAME is the filename used for communication, then a space,
-   then the baud rate.
-   'target adapt /dev/ttya 9600 [prognam]' for example.
- */
-
-static char *dev_name;
-int baudrate = 9600;
-static void
-mm_open (name, from_tty)
-     char *name;
-     int from_tty;
-{
-  TERMINAL sg;
-  unsigned int prl;
-  char *p;
-
-  /* Find the first whitespace character, it separates dev_name from
-     prog_name.  */
-  for (p = name;
-       p && *p && !isspace (*p); p++)
-    ;
-  if (p == 0 || *p == '\0')
-erroid:
-    error ("Usage : <command> <serial-device> <baud-rate> [progname]");
-  dev_name = (char*)xmalloc (p - name + 1);
-  strncpy (dev_name, name, p - name);
-  dev_name[p - name] = '\0';
-
-  /* Skip over the whitespace after dev_name */
-  for (; isspace (*p); p++)
-    /*EMPTY*/;
-  
-  if (1 != sscanf (p, "%d ", &baudrate))
-    goto erroid;
-
-  /* Skip the number and then the spaces */
-  for (; isdigit (*p); p++)
-    /*EMPTY*/;
-  for (; isspace (*p); p++)
-    /*EMPTY*/;
-  
-  if (prog_name != NULL)
-    free (prog_name);
-  prog_name = savestring (p, strlen (p));
-
-
-  if (mm_desc >= 0)
-    close (mm_desc);
-
-  mm_desc = open (dev_name, O_RDWR);
-  if (mm_desc < 0)
-    perror_with_name (dev_name);
-  ioctl (mm_desc, TIOCGETP, &sg);
-#ifdef HAVE_TERMIO
-  sg.c_cc[VMIN] = 0;		/* read with timeout.  */
-  sg.c_cc[VTIME] = timeout * 10;
-  sg.c_lflag &= ~(ICANON | ECHO);
-  sg.c_cflag = (sg.c_cflag & ~CBAUD) | damn_b (baudrate);
-#else
-  sg.sg_ispeed = damn_b (baudrate);
-  sg.sg_ospeed = damn_b (baudrate);
-  sg.sg_flags |= RAW;
-  sg.sg_flags |= ANYP;
-  sg.sg_flags &= ~ECHO;
-#endif
-
-
-  ioctl (mm_desc, TIOCSETP, &sg);
-  mm_stream = fdopen (mm_desc, "r+");
-
-  push_target (&mm_ops);
-
-#ifndef HAVE_TERMIO
-#ifndef NO_SIGINTERRUPT
-  /* Cause SIGALRM's to make reads fail with EINTR instead of resuming
-     the read.  */
-  if (siginterrupt (SIGALRM, 1) != 0)
-    perror ("mm_open: error in siginterrupt");
-#endif
-
-  /* Set up read timeout timer.  */
-  if ((void (*)) signal (SIGALRM, mm_timer) == (void (*)) -1)
-    perror ("mm_open: error in signal");
-#endif
-
-#if defined (LOG_FILE)
-  log_file = fopen (LOG_FILE, "w");
-  if (log_file == NULL)
-    perror_with_name (LOG_FILE);
-#endif
-   /*
-   ** Initialize target configuration structure (global)
-   */
-   DRAIN_INPUT();
-   out_msg_buf->config_req_msg.code = CONFIG_REQ;
-   out_msg_buf->config_req_msg.length = 4*0;
-   msg_send_serial(out_msg_buf); /* send config request message */
-
-   expect_msg(CONFIG,in_msg_buf,1);
-
-  a29k_get_processor_type ();
-
-  /* Print out some stuff, letting the user now what's going on */
-  printf_filtered("Connected to MiniMon via %s.\n", dev_name);
-    /* FIXME: can this restriction be removed? */
-  printf_filtered("Remote debugging using virtual addresses works only\n");
-  printf_filtered("\twhen virtual addresses map 1:1 to physical addresses.\n")
-;
-  if (processor_type != a29k_freeze_mode) {
-        fprintf_filtered(gdb_stderr,
-        "Freeze-mode debugging not available, and can only be done on an A29050.\n");
-  }
-
-   target_config.code = CONFIG;
-   target_config.length = 0;
-   target_config.processor_id = in_msg_buf->config_msg.processor_id;
-   target_config.version = in_msg_buf->config_msg.version;
-   target_config.I_mem_start = in_msg_buf->config_msg.I_mem_start;
-   target_config.I_mem_size = in_msg_buf->config_msg.I_mem_size;
-   target_config.D_mem_start = in_msg_buf->config_msg.D_mem_start;
-   target_config.D_mem_size = in_msg_buf->config_msg.D_mem_size;
-   target_config.ROM_start = in_msg_buf->config_msg.ROM_start;
-   target_config.ROM_size =  in_msg_buf->config_msg.ROM_size;
-   target_config.max_msg_size = in_msg_buf->config_msg.max_msg_size;
-   target_config.max_bkpts = in_msg_buf->config_msg.max_bkpts;
-   target_config.coprocessor = in_msg_buf->config_msg.coprocessor;
-   target_config.reserved = in_msg_buf->config_msg.reserved;
-   if (from_tty) {
-   	printf("Connected to MiniMON :\n");
-	printf("    Debugcore version            %d.%d\n",
-		0x0f & (target_config.version >> 4),
-		0x0f & (target_config.version ) );
-	printf("    Configuration version        %d.%d\n",
-		0x0f & (target_config.version >> 12),
-		0x0f & (target_config.version >>  8) );
-	printf("    Message system version       %d.%d\n",
-		0x0f & (target_config.version >> 20),
-		0x0f & (target_config.version >> 16) );
-	printf("    Communication driver version %d.%d\n",
-		0x0f & (target_config.version >> 28),
-		0x0f & (target_config.version >> 24) );
-   }
-
-  /* Leave the target running... 
-   * The above message stopped the target in the dbg core (MiniMon),  
-   * so restart the target out of MiniMon, 
-   */
-  out_msg_buf->go_msg.code = GO;
-  out_msg_buf->go_msg.length = 0;
-  msg_send_serial(out_msg_buf);
-  /* No message to expect after a GO */
-}
-
-/**************************************************************** REMOTE_CLOSE
-** Close the open connection to the minimon debugger.
-   Use this when you want to detach and do something else
-   with your gdb.  */
-static void
-mm_close (quitting)	/*FIXME: how is quitting used */
-     int quitting;
-{
-  if (mm_desc < 0)
-    error ("Can't close remote connection: not debugging remotely.");
-
-  /* We should never get here if there isn't something valid in
-     mm_desc and mm_stream.  
-
-     Due to a bug in Unix, fclose closes not only the stdio stream,
-     but also the file descriptor.  So we don't actually close
-     mm_desc.  */
-  DRAIN_INPUT();
-  fclose (mm_stream);	
-  /* close (mm_desc); */
-
-  /* Do not try to close mm_desc again, later in the program.  */
-  mm_stream = NULL;
-  mm_desc = -1;
-
-#if defined (LOG_FILE)
-  if (ferror (log_file))
-    printf ("Error writing log file.\n");
-  if (fclose (log_file) != 0)
-    printf ("Error closing log file.\n");
-#endif
-
-  printf ("Ending remote debugging\n");
-} 
-
-/************************************************************* REMOTE_ATACH */
-/* Attach to a program that is already loaded and running 
- * Upon exiting the process's execution is stopped.
- */
-static void
-mm_attach (args, from_tty)
-     char *args;
-     int from_tty;
-{
-
-  if (!mm_stream)
-      error ("MiniMon not opened yet, use the 'target minimon' command.\n");
-	
-  if (from_tty)
-      printf ("Attaching to remote program %s...\n", prog_name);
-
-  /* Make sure the target is currently running, it is supposed to be. */
-  /* FIXME: is it ok to send MiniMon a BREAK if it is already stopped in 
-   * 	the dbg core.  If so, we don't need to send this GO.
-   */
-  out_msg_buf->go_msg.code = GO;
-  out_msg_buf->go_msg.length = 0;
-  msg_send_serial(out_msg_buf);
-  sleep(2);	/* At the worst it will stop, receive a message, continue */
- 
-  /* Send the mm a break. */ 
-  out_msg_buf->break_msg.code = BREAK;
-  out_msg_buf->break_msg.length = 0;
-  msg_send_serial(out_msg_buf);
-}
-/********************************************************** REMOTE_DETACH */
-/* Terminate the open connection to the remote debugger.
-   Use this when you want to detach and do something else
-   with your gdb.  Leave remote process running (with no breakpoints set). */
-static void
-mm_detach (args,from_tty)
-     char *args;
-     int from_tty;
-{
-  remove_breakpoints();		/* Just in case there were any left in */
-  out_msg_buf->go_msg.code = GO;
-  out_msg_buf->go_msg.length = 0;
-  msg_send_serial(out_msg_buf);
-  pop_target();         	/* calls mm_close to do the real work */
-}
-
-
-/*************************************************************** REMOTE_RESUME
-** Tell the remote machine to resume.  */
-
-static void
-mm_resume (pid, step, sig)
-     int pid, step;
-     enum target_signal sig;
-{
-  if (sig != TARGET_SIGNAL_0)
-    warning ("Can't send signals to a remote MiniMon system.");
-
-  if (step) {
-      out_msg_buf->step_msg.code= STEP;
-      out_msg_buf->step_msg.length = 1*4;
-      out_msg_buf->step_msg.count = 1;		/* step 1 instruction */
-      msg_send_serial(out_msg_buf);
-  } else {
-      out_msg_buf->go_msg.code= GO;
-      out_msg_buf->go_msg.length = 0;
-      msg_send_serial(out_msg_buf);
-  }
-}
-
-/***************************************************************** REMOTE_WAIT
-** Wait until the remote machine stops, then return,
-   storing status in STATUS just as `wait' would.  */
-
-static int
-mm_wait (status)
-     struct target_waitstatus *status;
-{
-  int i, result;
-  int old_timeout = timeout;
-  int old_immediate_quit = immediate_quit;
-
-  status->kind = TARGET_WAITKIND_EXITED;
-  status->value.integer = 0;
-
-/* wait for message to arrive. It should be:
-	- A HIF service request.
-	- A HIF exit service request.
-	- A CHANNEL0_ACK.
-	- A CHANNEL1 request.
-	- a debugcore HALT message.
-  HIF services must be responded too, and while-looping continued.
-  If the target stops executing, mm_wait() should return.
-*/
-  timeout = 0;	/* Wait indefinetly for a message */
-  immediate_quit = 1;   /* Helps ability to QUIT */
-  while(1)
-  {
-    while(msg_recv_serial(in_msg_buf)) {
-    	QUIT;	/* Let user quit if they want */
-    }
-    switch (in_msg_buf->halt_msg.code)
-    {
-    case HIF_CALL:
-	i = in_msg_buf->hif_call_rtn_msg.service_number;
-	result=service_HIF(in_msg_buf);
-   	if(i == 1) /* EXIT */
-	    goto exit;
-	if(result)
-	    printf("Warning: failure during HIF service %d\n", i);
-	break;
-    case CHANNEL0_ACK:
-	service_HIF(in_msg_buf);
-	break;
-    case CHANNEL1:
-        i=in_msg_buf->channel1_msg.length;
-        in_msg_buf->channel1_msg.data[i] = '\0';
-        printf("%s", in_msg_buf->channel1_msg.data);
-	gdb_flush(gdb_stdout);
-        /* Send CHANNEL1_ACK message */
-        out_msg_buf->channel1_ack_msg.code = CHANNEL1_ACK;
-        out_msg_buf->channel1_ack_msg.length = 0;
-        result = msg_send_serial(out_msg_buf);
-	break;
-    case HALT:
-	goto halted;
-    default:
-	goto halted;
-    }
-  }
-halted:
-  /* FIXME, these printfs should not be here.  This is a source level 
-     debugger, guys!  */
-  if (in_msg_buf->halt_msg.trap_number== 0)
-  { printf("Am290*0 received vector number %d (break point)\n",
-	in_msg_buf->halt_msg.trap_number);
-    status->kind = TARGET_WAITKIND_STOPPED;
-    status->value.sig = TARGET_SIGNAL_TRAP;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 1)
-    {
-      printf("Am290*0 received vector number %d\n",
-	     in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_BUS;
-    }
-  else if (in_msg_buf->halt_msg.trap_number== 3
-        || in_msg_buf->halt_msg.trap_number== 4)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_FPE;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 5)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_ILL;
-  }
-  else if (in_msg_buf->halt_msg.trap_number >= 6
-        && in_msg_buf->halt_msg.trap_number <= 11)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_SEGV;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 12
-        || in_msg_buf->halt_msg.trap_number== 13)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_ILL;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 14)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_ALRM;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 15)
-    {
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_TRAP;
-    }
-  else if (in_msg_buf->halt_msg.trap_number >= 16
-        && in_msg_buf->halt_msg.trap_number <= 21)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_INT;
-  }
-  else if (in_msg_buf->halt_msg.trap_number== 22)
-  { printf("Am290*0 received vector number %d\n",
-	in_msg_buf->halt_msg.trap_number);
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_ILL;
-  } /* BREAK message was sent */
-  else if (in_msg_buf->halt_msg.trap_number== 75)
-    {
-      status->kind = TARGET_WAITKIND_STOPPED;
-      status->value.sig = TARGET_SIGNAL_TRAP;
-    }
-  else
-exit:
-    {
-      status->kind = TARGET_WAITKIND_EXITED;
-      status->value.integer = 0;
-    }
-
-  timeout = old_timeout;	/* Restore original timeout value */
-  immediate_quit = old_immediate_quit;
-  return 0;
-}
-
-/******************************************************* REMOTE_FETCH_REGISTERS
- * Read a remote register 'regno'. 
- * If regno==-1 then read all the registers.
- */
-static void 
-mm_fetch_registers (regno)
-int	regno;
-{
-  INT32 *data_p;
-
-  if (regno >= 0)  {
-	fetch_register(regno);
-	return;
-  }
-
-/* Gr1/rsp */
-  out_msg_buf->read_req_msg.byte_count = 4*1;
-  out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-  out_msg_buf->read_req_msg.address = 1;
-  msg_send_serial(out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-  supply_register (GR1_REGNUM , data_p);
-
-#if defined(GR64_REGNUM)	/* Read gr64-127 */
-/* Global Registers gr64-gr95 */ 
-  out_msg_buf->read_req_msg.code= READ_REQ;
-  out_msg_buf->read_req_msg.length = 4*3;
-  out_msg_buf->read_req_msg.byte_count = 4*32;
-  out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-  out_msg_buf->read_req_msg.address = 64;
-  msg_send_serial(out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-
-  for (regno=GR64_REGNUM; regno<GR64_REGNUM+32; regno++) {
-      supply_register (regno, data_p++);
-  }
-#endif	/*  GR64_REGNUM */
-
-/* Global Registers gr96-gr127 */ 
-  out_msg_buf->read_req_msg.code= READ_REQ;
-  out_msg_buf->read_req_msg.length = 4*3;
-  out_msg_buf->read_req_msg.byte_count = 4 * 32;
-  out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-  out_msg_buf->read_req_msg.address = 96;
-  msg_send_serial(out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-
-  for (regno=GR96_REGNUM; regno<GR96_REGNUM+32; regno++) {
-      supply_register (regno, data_p++);
-  }
-
-/* Local Registers */ 
-  out_msg_buf->read_req_msg.byte_count = 4 * (128);
-  out_msg_buf->read_req_msg.memory_space = LOCAL_REG;
-  out_msg_buf->read_req_msg.address = 0;
-  msg_send_serial(out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-
-  for (regno=LR0_REGNUM; regno<LR0_REGNUM+128; regno++) {
-      supply_register (regno, data_p++);
-  }
-
-/* Protected Special Registers */ 
-  out_msg_buf->read_req_msg.byte_count = 4*15;
-  out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
-  out_msg_buf->read_req_msg.address = 0;
-  msg_send_serial( out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-
-  for (regno=0; regno<=14; regno++) {
-      supply_register (SR_REGNUM(regno), data_p++);
-  }
-  if (USE_SHADOW_PC) {	/* Let regno_to_srnum() handle the register number */
-	fetch_register(NPC_REGNUM);
-	fetch_register(PC_REGNUM);
-	fetch_register(PC2_REGNUM);
-  }
-
-/* Unprotected Special Registers */ 
-  out_msg_buf->read_req_msg.byte_count = 4*8;
-  out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
-  out_msg_buf->read_req_msg.address = 128;
-  msg_send_serial( out_msg_buf);
-  expect_msg(READ_ACK,in_msg_buf,1);
-  data_p = &(in_msg_buf->read_r_ack_msg.data[0]);
-
-  for (regno=128; regno<=135; regno++) {
-      supply_register (SR_REGNUM(regno), data_p++);
-  }
-
-  /* There doesn't seem to be any way to get these.  */
-  {
-    int val = -1;
-    supply_register (FPE_REGNUM, &val);
-    supply_register (INTE_REGNUM, &val);
-    supply_register (FPS_REGNUM, &val);
-    supply_register (EXO_REGNUM, &val);
-  }
-}
-
-
-/****************************************************** REMOTE_STORE_REGISTERS
- * Store register regno into the target.  
- * If regno==-1 then store all the registers.
- * Result is 0 for success, -1 for failure.
- */
-
-static void
-mm_store_registers (regno)
-int regno;
-{
-  int result;
-  
-  if (regno >= 0) {
-    store_register(regno);
-    return;
-  }
-
-  result = 0;
-
-  out_msg_buf->write_r_msg.code= WRITE_REQ;
-
-/* Gr1/rsp */
-  out_msg_buf->write_r_msg.byte_count = 4*1;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.memory_space = GLOBAL_REG;
-  out_msg_buf->write_r_msg.address = 1;
-  out_msg_buf->write_r_msg.data[0] = read_register (GR1_REGNUM);
-
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-#if defined(GR64_REGNUM)
-/* Global registers gr64-gr95 */
-  out_msg_buf->write_r_msg.byte_count = 4* (32);
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 64;
-
-  for (regno=GR64_REGNUM ; regno<GR64_REGNUM+32 ; regno++)
-    {
-      out_msg_buf->write_r_msg.data[regno-GR64_REGNUM] = read_register (regno);
-    }
-  msg_send_serial(out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-#endif	/* GR64_REGNUM */
-
-/* Global registers gr96-gr127 */
-  out_msg_buf->write_r_msg.byte_count = 4* (32);
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 96;
-  for (regno=GR96_REGNUM ; regno<GR96_REGNUM+32 ; regno++)
-    {
-      out_msg_buf->write_r_msg.data[regno-GR96_REGNUM] = read_register (regno);
-    }
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-/* Local Registers */
-  out_msg_buf->write_r_msg.memory_space = LOCAL_REG;
-  out_msg_buf->write_r_msg.byte_count = 4*128;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 0;
-
-  for (regno = LR0_REGNUM ; regno < LR0_REGNUM+128 ; regno++)
-    {
-      out_msg_buf->write_r_msg.data[regno-LR0_REGNUM] = read_register (regno);
-    }
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-/* Protected Special Registers */ 
-  /* VAB through TMR */
-  out_msg_buf->write_r_msg.memory_space = SPECIAL_REG;
-  out_msg_buf->write_r_msg.byte_count = 4* 10;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 0;
-  for (regno = 0 ; regno<=9 ; regno++)	/* VAB through TMR */
-    out_msg_buf->write_r_msg.data[regno] = read_register (SR_REGNUM(regno));
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-  /* PC0, PC1, PC2 possibly as shadow registers */
-  out_msg_buf->write_r_msg.byte_count = 4* 3;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  for (regno=10 ; regno<=12 ; regno++)	/* LRU and MMU */
-    out_msg_buf->write_r_msg.data[regno-10] = read_register (SR_REGNUM(regno));
-  if (USE_SHADOW_PC) 
-    out_msg_buf->write_r_msg.address = 20;	/* SPC0 */
-  else 
-    out_msg_buf->write_r_msg.address = 10;	/* PC0 */
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-  /* LRU and MMU */
-  out_msg_buf->write_r_msg.byte_count = 4* 2;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 13;
-  for (regno=13 ; regno<=14 ; regno++)	/* LRU and MMU */
-    out_msg_buf->write_r_msg.data[regno-13] = read_register (SR_REGNUM(regno));
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
-
-/* Unprotected Special Registers */ 
-  out_msg_buf->write_r_msg.byte_count = 4*8;
-  out_msg_buf->write_r_msg.length = 3*4 + out_msg_buf->write_r_msg.byte_count;
-  out_msg_buf->write_r_msg.address = 128;
-  for (regno = 128 ; regno<=135 ; regno++)
-    out_msg_buf->write_r_msg.data[regno-128] = read_register(SR_REGNUM(regno));
-  msg_send_serial( out_msg_buf);
-  if (!expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = -1;
-  }
- 
-  registers_changed ();
-}
-
-/*************************************************** REMOTE_PREPARE_TO_STORE */
-/* Get ready to modify the registers array.  On machines which store
-   individual registers, this doesn't need to do anything.  On machines
-   which store all the registers in one fell swoop, this makes sure
-   that registers contains all the registers from the program being
-   debugged.  */
-
-static void
-mm_prepare_to_store ()
-{
-  /* Do nothing, since we can store individual regs */
-}
-
-/******************************************************* REMOTE_XFER_MEMORY */
-static CORE_ADDR
-translate_addr(addr)
-CORE_ADDR addr;
-{
-#if defined(KERNEL_DEBUGGING)
-        /* Check for a virtual address in the kernel */
-        /* Assume physical address of ublock is in  paddr_u register */
-	/* FIXME: doesn't work for user virtual addresses */
-        if (addr >= UVADDR) {
-                /* PADDR_U register holds the physical address of the ublock */
-                CORE_ADDR i = (CORE_ADDR)read_register(PADDR_U_REGNUM);
-                return(i + addr - (CORE_ADDR)UVADDR);
-        } else {
-        	return(addr);
-        }
-#else
-        return(addr);
-#endif
-}
-
-/******************************************************* REMOTE_FILES_INFO */
-static void
-mm_files_info ()
-{
-  printf ("\tAttached to %s at %d baud and running program %s.\n",
-          dev_name, baudrate, prog_name);
-}
-
-/************************************************* REMOTE_INSERT_BREAKPOINT */
-static int
-mm_insert_breakpoint (addr, contents_cache)
-     CORE_ADDR addr;
-     char *contents_cache;
-{
-  out_msg_buf->bkpt_set_msg.code = BKPT_SET;
-  out_msg_buf->bkpt_set_msg.length = 4*4;
-  out_msg_buf->bkpt_set_msg.memory_space = I_MEM;
-  out_msg_buf->bkpt_set_msg.bkpt_addr = (ADDR32) addr;
-  out_msg_buf->bkpt_set_msg.pass_count = 1;
-  out_msg_buf->bkpt_set_msg.bkpt_type = -1;	/* use illop for 29000 */
-  msg_send_serial( out_msg_buf);
-  if (expect_msg(BKPT_SET_ACK,in_msg_buf,1)) {
-	return 0;		/* Success */
-  } else {
-	return 1;		/* Failure */
-  }
-}
-
-/************************************************* REMOTE_DELETE_BREAKPOINT */
-static int
-mm_remove_breakpoint (addr, contents_cache)
-     CORE_ADDR addr;
-     char *contents_cache;
-{
-  out_msg_buf->bkpt_rm_msg.code = BKPT_RM;
-  out_msg_buf->bkpt_rm_msg.length = 4*3;
-  out_msg_buf->bkpt_rm_msg.memory_space = I_MEM;
-  out_msg_buf->bkpt_rm_msg.bkpt_addr = (ADDR32) addr;
-  msg_send_serial( out_msg_buf);
-  if (expect_msg(BKPT_RM_ACK,in_msg_buf,1)) {
-	return 0;		/* Success */
-  } else {
-	return 1;		/* Failure */
-  }
-}
-
-
-/******************************************************* REMOTE_KILL */
-static void
-mm_kill(arg,from_tty)
-char    *arg;
-int     from_tty;
-{
-	char	buf[4];
-
-#if defined(KERNEL_DEBUGGING)
-	/* We don't ever kill the kernel */
-	if (from_tty) {
-		printf("Kernel not killed, but left in current state.\n");
-	 	printf("Use detach to leave kernel running.\n");
-	}
-#else
-  	out_msg_buf->break_msg.code = BREAK;
-  	out_msg_buf->bkpt_set_msg.length = 4*0;
-	expect_msg(HALT,in_msg_buf,from_tty);
-	if (from_tty) {
-		printf("Target has been stopped.");
-		printf("Would you like to do a hardware reset (y/n) [n] ");
-		fgets(buf,3,stdin);	
-		if (buf[0] == 'y') {
-			out_msg_buf->reset_msg.code = RESET;
-			out_msg_buf->bkpt_set_msg.length = 4*0;
-			expect_msg(RESET_ACK,in_msg_buf,from_tty);
-			printf("Target has been reset.");
-		}
-	}
-	pop_target();
-#endif 
-}
-
-
-
-/***************************************************************************/
-/* 
- * Load a program into the target.
- */
-static void
-mm_load(arg_string,from_tty)
-char	*arg_string;
-int	from_tty;
-{
-  dont_repeat ();
-
-#if defined(KERNEL_DEBUGGING)
-  printf("The kernel had better be loaded already!  Loading not done.\n");
-#else
-  if (arg_string == 0)
-    error ("The load command takes a file name");
-
-  arg_string = tilde_expand (arg_string);
-  make_cleanup (free, arg_string);
-  QUIT;
-  immediate_quit++;
-  error("File loading is not yet supported for MiniMon.");
-  /* FIXME, code to load your file here... */
-  /* You may need to do an init_target_mm() */
-  /* init_target_mm(?,?,?,?,?,?,?,?); */
-  immediate_quit--;
-  /* symbol_file_add (arg_string, from_tty, text_addr, 0, 0, 0, 0); */
-#endif
-
-}
-
-/************************************************ REMOTE_WRITE_INFERIOR_MEMORY
-** Copy LEN bytes of data from debugger memory at MYADDR
-   to inferior's memory at MEMADDR.  Returns number of bytes written.  */
-static int
-mm_write_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  int i,nwritten;
-
-  out_msg_buf->write_req_msg.code= WRITE_REQ;
-  out_msg_buf->write_req_msg.memory_space = mm_memory_space(memaddr);	
-
-  nwritten=0;
-  while (nwritten < len) {
-	int num_to_write = len - nwritten;
-	if (num_to_write > MAXDATA) num_to_write = MAXDATA;
-  	for (i=0 ; i < num_to_write ; i++)
-      		out_msg_buf->write_req_msg.data[i] = myaddr[i+nwritten];
-  	out_msg_buf->write_req_msg.byte_count = num_to_write;
-  	out_msg_buf->write_req_msg.length = 3*4 + num_to_write; 
-  	out_msg_buf->write_req_msg.address = memaddr + nwritten;
-  	msg_send_serial(out_msg_buf);
-
-  	if (expect_msg(WRITE_ACK,in_msg_buf,1)) {
-  		nwritten += in_msg_buf->write_ack_msg.byte_count;
-  	} else {
-		break;	
-  	}
-  }
-  return(nwritten);
-}
-
-/************************************************* REMOTE_READ_INFERIOR_MEMORY
-** Read LEN bytes from inferior memory at MEMADDR.  Put the result
-   at debugger address MYADDR.  Returns number of bytes read.  */
-static int
-mm_read_inferior_memory(memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  int i,nread;
-
-  out_msg_buf->read_req_msg.code= READ_REQ;
-  out_msg_buf->read_req_msg.memory_space = mm_memory_space(memaddr);
-
-  nread=0;
-  while (nread < len) {
-	int num_to_read = (len - nread);
-	if (num_to_read > MAXDATA) num_to_read = MAXDATA;
-  	out_msg_buf->read_req_msg.byte_count = num_to_read; 
-  	out_msg_buf->read_req_msg.length = 3*4 + num_to_read; 
-  	out_msg_buf->read_req_msg.address = memaddr + nread;
-  	msg_send_serial(out_msg_buf);
-
-  	if (expect_msg(READ_ACK,in_msg_buf,1)) {
-  		for (i=0 ; i<in_msg_buf->read_ack_msg.byte_count ; i++)
-      			myaddr[i+nread] = in_msg_buf->read_ack_msg.data[i];
-  		nread += in_msg_buf->read_ack_msg.byte_count;
-  	} else {
-		break;	
-  	}
-  }
-  return(nread);
-}
-
-/* FIXME!  Merge these two.  */
-static int
-mm_xfer_inferior_memory (memaddr, myaddr, len, write)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-{
-
-  memaddr = translate_addr(memaddr);
-
-  if (write)
-    return mm_write_inferior_memory (memaddr, myaddr, len);
-  else
-    return mm_read_inferior_memory (memaddr, myaddr, len);
-}
-
-
-/********************************************************** MSG_SEND_SERIAL
-** This function is used to send a message over the
-** serial line.
-**
-** If the message is successfully sent, a zero is
-** returned.  If the message was not sendable, a -1
-** is returned.  This function blocks.  That is, it
-** does not return until the message is completely
-** sent, or until an error is encountered.
-**
-*/
-
-int
-msg_send_serial(msg_ptr)
-   union  msg_t  *msg_ptr;
-{
-   INT32  message_size;
-   int    byte_count;
-   int    result;
-   char   c;
-
-   /* Send message header */
-   byte_count = 0;
-   message_size = msg_ptr->generic_msg.length + (2 * sizeof(INT32));
-   do {
-      c = *((char *)msg_ptr+byte_count);
-      result = write(mm_desc, &c, 1);
-      if (result == 1) {
-         byte_count = byte_count + 1;
-      }
-   } while ((byte_count < message_size) );
-
-   return(0);
-}  /* end msg_send_serial() */
-
-/********************************************************** MSG_RECV_SERIAL
-** This function is used to receive a message over a
-** serial line.
-**
-** If the message is waiting in the buffer, a zero is
-** returned and the buffer pointed to by msg_ptr is filled
-** in.  If no message was available, a -1 is returned.
-** If timeout==0, wait indefinetly for a character.
-**
-*/
-
-int
-msg_recv_serial(msg_ptr)
-union  msg_t  *msg_ptr;
-{
-   static INT32  length=0;
-   static INT32  byte_count=0;
-   int    result;
-   char   c;
-  if(msg_ptr == 0)		/* re-sync request */
-  {  length=0;
-     byte_count=0;
-#ifdef HAVE_TERMIO
-     /* The timeout here is the prevailing timeout set with VTIME */
-     ->"timeout==0 semantics not supported"
-     read(mm_desc, in_buf, BUFER_SIZE);
-#else
-     alarm (1);
-     read(mm_desc, in_buf, BUFER_SIZE);
-     alarm (0);
-#endif
-     return(0);
-  }
-   /* Receive message */
-#ifdef HAVE_TERMIO
-/* Timeout==0, help support the mm_wait() routine */
-   ->"timeout==0 semantics not supported (and its nice if they are)"
-   result = read(mm_desc, &c, 1);
-#else
-  alarm(timeout);
-  result = read(mm_desc, &c, 1);
-  alarm (0);
-#endif
-  if ( result < 0) {
-      if (errno == EINTR) {
-      	error ("Timeout reading from remote system.");
-      } else
-	perror_with_name ("remote");
-  } else if (result == 1) {
-      *((char *)msg_ptr+byte_count) = c;
-      byte_count = byte_count + 1;
-  }
-
-   /* Message header received.  Save message length. */
-  if (byte_count == (2 * sizeof(INT32)))
-      length = msg_ptr->generic_msg.length;
-
-  if (byte_count >= (length + (2 * sizeof(INT32)))) {
-      /* Message received */
-      byte_count = 0;
-      return(0);
-  } else
-      return (-1);
-
-}  /* end msg_recv_serial() */
-
-/********************************************************************* KBD_RAW
-** This function is used to put the keyboard in "raw"
-** mode for BSD Unix.  The original status is saved
-** so that it may be restored later.
-*/
-TERMINAL kbd_tbuf;
-
-int
-kbd_raw() {
-   int    result;
-   TERMINAL tbuf;
-
-   /* Get keyboard termio (to save to restore original modes) */
-#ifdef HAVE_TERMIO
-   result = ioctl(0, TCGETA, &kbd_tbuf);
-#else
-   result = ioctl(0, TIOCGETP, &kbd_tbuf);
-#endif
-   if (result == -1)
-      return (errno);
-
-   /* Get keyboard TERMINAL (for modification) */
-#ifdef HAVE_TERMIO
-   result = ioctl(0, TCGETA, &tbuf);
-#else
-   result = ioctl(0, TIOCGETP, &tbuf);
-#endif
-   if (result == -1)
-      return (errno);
-
-   /* Set up new parameters */
-#ifdef HAVE_TERMIO
-   tbuf.c_iflag = tbuf.c_iflag &
-      ~(INLCR | ICRNL | IUCLC | ISTRIP | IXON | BRKINT);
-   tbuf.c_lflag = tbuf.c_lflag & ~(ICANON | ISIG | ECHO);
-   tbuf.c_cc[4] = 0;  /* MIN */
-   tbuf.c_cc[5] = 0;  /* TIME */
-#else
-   /* FIXME: not sure if this is correct (matches HAVE_TERMIO). */
-   tbuf.sg_flags |= RAW;
-   tbuf.sg_flags |= ANYP;
-   tbuf.sg_flags &= ~ECHO;
-#endif
-
-   /* Set keyboard termio to new mode (RAW) */
-#ifdef HAVE_TERMIO
-   result = ioctl(0, TCSETAF, &tbuf);
-#else
-   result = ioctl(0, TIOCSETP, &tbuf);
-#endif 
-   if (result == -1)
-      return (errno);
-
-   return (0);
-}  /* end kbd_raw() */
-
-
-
-/***************************************************************** KBD_RESTORE
-** This function is used to put the keyboard back in the
-** mode it was in before kbk_raw was called.  Note that
-** kbk_raw() must have been called at least once before
-** kbd_restore() is called.
-*/
-
-int
-kbd_restore() {
-   int result;
-
-   /* Set keyboard termio to original mode */
-#ifdef HAVE_TERMIO
-   result = ioctl(0, TCSETAF, &kbd_tbuf);
-#else
-   result = ioctl(0, TIOCGETP, &kbd_tbuf);
-#endif
-
-   if (result == -1)
-      return (errno);
-
-   return(0);
-}  /* end kbd_cooked() */
-
-
-/*****************************************************************************/ 
-/* Fetch a single register indicatated by 'regno'. 
- * Returns 0/-1 on success/failure.  
- */
-static int
-fetch_register (regno)
-     int regno;
-{
-     int  result;
-  out_msg_buf->read_req_msg.code= READ_REQ;
-  out_msg_buf->read_req_msg.length = 4*3;
-  out_msg_buf->read_req_msg.byte_count = 4;
-
-  if (regno == GR1_REGNUM)
-  { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->read_req_msg.address = 1;
-  }
-  else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
-  { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->read_req_msg.address = (regno - GR96_REGNUM) + 96;
-  }
-#if defined(GR64_REGNUM)
-  else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
-  { out_msg_buf->read_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->read_req_msg.address = (regno - GR64_REGNUM) + 64;
-  }
-#endif	/* GR64_REGNUM */
-  else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
-  { out_msg_buf->read_req_msg.memory_space = LOCAL_REG;
-    out_msg_buf->read_req_msg.address = (regno - LR0_REGNUM);
-  }
-  else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)  
-  { int val = -1;
-    supply_register(160 + (regno - FPE_REGNUM),&val);
-    return 0;		/* Pretend Success */
-  }
-  else 
-  { out_msg_buf->read_req_msg.memory_space = SPECIAL_REG;
-    out_msg_buf->read_req_msg.address = regnum_to_srnum(regno); 
-  } 
-
-  msg_send_serial(out_msg_buf);
-
-  if (expect_msg(READ_ACK,in_msg_buf,1)) {
-  	supply_register (regno, &(in_msg_buf->read_r_ack_msg.data[0]));
-	result = 0;
-  } else {
-	result = -1;
-  }
-  return result;
-}
-/*****************************************************************************/ 
-/* Store a single register indicated by 'regno'. 
- * Returns 0/-1 on success/failure.  
- */
-static int
-store_register (regno)
-     int regno;
-{
-     int  result;
-
-  out_msg_buf->write_req_msg.code= WRITE_REQ;
-  out_msg_buf->write_req_msg.length = 4*4;
-  out_msg_buf->write_req_msg.byte_count = 4;
-  out_msg_buf->write_r_msg.data[0] = read_register (regno);
-
-  if (regno == GR1_REGNUM)
-  { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->write_req_msg.address = 1;
-    /* Setting GR1 changes the numbers of all the locals, so invalidate the 
-     * register cache.  Do this *after* calling read_register, because we want 
-     * read_register to return the value that write_register has just stuffed 
-     * into the registers array, not the value of the register fetched from 
-     * the inferior.  
-     */
-    registers_changed ();
-  }
-#if defined(GR64_REGNUM)
-  else if (regno >= GR64_REGNUM && regno < GR64_REGNUM + 32 )
-  { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->write_req_msg.address = (regno - GR64_REGNUM) + 64;
-  }
-#endif	/* GR64_REGNUM */
-  else if (regno >= GR96_REGNUM && regno < GR96_REGNUM + 32)
-  { out_msg_buf->write_req_msg.memory_space = GLOBAL_REG;
-    out_msg_buf->write_req_msg.address = (regno - GR96_REGNUM) + 96;
-  }
-  else if (regno >= LR0_REGNUM && regno < LR0_REGNUM + 128)
-  { out_msg_buf->write_req_msg.memory_space = LOCAL_REG;
-    out_msg_buf->write_req_msg.address = (regno - LR0_REGNUM);
-  }
-  else if (regno>=FPE_REGNUM && regno<=EXO_REGNUM)  
-  { 
-    return 0;		/* Pretend Success */
-  }
-  else 	/* An unprotected or protected special register */
-  { out_msg_buf->write_req_msg.memory_space = SPECIAL_REG;
-    out_msg_buf->write_req_msg.address = regnum_to_srnum(regno); 
-  } 
-
-  msg_send_serial(out_msg_buf);
-
-  if (expect_msg(WRITE_ACK,in_msg_buf,1)) {
-	result = 0;
-  } else {
-	result = -1;
-  }
-  return result;
-}
-/****************************************************************************/
-/* 
- * Convert a gdb special register number to a 29000 special register number.
- */
-static int
-regnum_to_srnum(regno)
-int	regno;
-{
-	switch(regno) {
-		case VAB_REGNUM: return(0); 
-		case OPS_REGNUM: return(1); 
-		case CPS_REGNUM: return(2); 
-		case CFG_REGNUM: return(3); 
-		case CHA_REGNUM: return(4); 
-		case CHD_REGNUM: return(5); 
-		case CHC_REGNUM: return(6); 
-		case RBP_REGNUM: return(7); 
-		case TMC_REGNUM: return(8); 
-		case TMR_REGNUM: return(9); 
-		case NPC_REGNUM: return(USE_SHADOW_PC ? (20) : (10));
-		case PC_REGNUM:  return(USE_SHADOW_PC ? (21) : (11));
-		case PC2_REGNUM: return(USE_SHADOW_PC ? (22) : (12));
-		case MMU_REGNUM: return(13); 
-		case LRU_REGNUM: return(14); 
-		case IPC_REGNUM: return(128); 
-		case IPA_REGNUM: return(129); 
-		case IPB_REGNUM: return(130); 
-		case Q_REGNUM:   return(131); 
-		case ALU_REGNUM: return(132); 
-		case BP_REGNUM:  return(133); 
-		case FC_REGNUM:  return(134); 
-		case CR_REGNUM:  return(135); 
-		case FPE_REGNUM: return(160); 
-		case INTE_REGNUM: return(161); 
-		case FPS_REGNUM: return(162); 
-		case EXO_REGNUM:return(164); 
-		default:
-			return(255);	/* Failure ? */
-	}
-}
-/****************************************************************************/
-/* 
- * Initialize the target debugger (minimon only).
- */
-static void
-init_target_mm(tstart,tend,dstart,dend,entry,ms_size,rs_size,arg_start)
-ADDR32	tstart,tend,dstart,dend,entry;
-INT32	ms_size,rs_size;
-ADDR32	arg_start;
-{
-	out_msg_buf->init_msg.code = INIT;
-	out_msg_buf->init_msg.length= sizeof(struct init_msg_t)-2*sizeof(INT32);
-	out_msg_buf->init_msg.text_start = tstart;
-	out_msg_buf->init_msg.text_end = tend;
-	out_msg_buf->init_msg.data_start = dstart;
-	out_msg_buf->init_msg.data_end = dend;
-	out_msg_buf->init_msg.entry_point = entry;
-	out_msg_buf->init_msg.mem_stack_size = ms_size;
-	out_msg_buf->init_msg.reg_stack_size = rs_size;
-	out_msg_buf->init_msg.arg_start = arg_start;
-	msg_send_serial(out_msg_buf);
-	expect_msg(INIT_ACK,in_msg_buf,1);
-}
-/****************************************************************************/
-/* 
- * Return a pointer to a string representing the given message code.
- * Not all messages are represented here, only the ones that we expect
- * to be called with.
- */
-static char*
-msg_str(code)
-INT32	code;
-{
-	static char cbuf[32];
-
-	switch (code) {
-	case BKPT_SET_ACK: sprintf(cbuf,"%s (%d)","BKPT_SET_ACK",code); break; 
-	case BKPT_RM_ACK: sprintf(cbuf,"%s (%d)","BKPT_RM_ACK",code); break; 
-	case INIT_ACK: 	  sprintf(cbuf,"%s (%d)","INIT_ACK",code); break; 
-	case READ_ACK: 	  sprintf(cbuf,"%s (%d)","READ_ACK",code); break; 
-	case WRITE_ACK:	  sprintf(cbuf,"%s (%d)","WRITE_ACK",code); break; 
-	case ERROR:       sprintf(cbuf,"%s (%d)","ERROR",code); break; 
-	case HALT: 	sprintf(cbuf,"%s (%d)","HALT",code); break; 
-	default:	sprintf(cbuf,"UNKNOWN (%d)",code); break; 
-	}
-	return(cbuf);
-}
-/****************************************************************************/
-/*
- * Selected (not all of them) error codes that we might get.
- */
-static char* 
-error_msg_str(code)
-INT32	code;
-{
-	static char cbuf[50];
-
-	switch (code) {
-	case EMFAIL: 	return("EMFAIL: unrecoverable error"); 
-	case EMBADADDR: return("EMBADADDR: Illegal address"); 
-	case EMBADREG: 	return("EMBADREG: Illegal register "); 
-	case EMACCESS: 	return("EMACCESS: Could not access memory");
-	case EMBADMSG: 	return("EMBADMSG: Unknown message type"); 
-	case EMMSG2BIG: return("EMMSG2BIG: Message to large"); 
-	case EMNOSEND: 	return("EMNOSEND: Could not send message"); 
-	case EMNORECV: 	return("EMNORECV: Could not recv message"); 
-	case EMRESET: 	return("EMRESET: Could not RESET target"); 
-	case EMCONFIG: 	return("EMCONFIG: Could not get target CONFIG"); 
-	case EMSTATUS: 	return("EMSTATUS: Could not get target STATUS"); 
-	case EMREAD: 	return("EMREAD: Could not READ target memory"); 
-	case EMWRITE: 	return("EMWRITE: Could not WRITE target memory"); 
-	case EMBKPTSET: return("EMBKPTSET: Could not set breakpoint"); 
-	case EMBKPTRM:	return("EMBKPTRM: Could not remove breakpoint"); 
-	case EMBKPTSTAT:return("EMBKPTSTAT: Could not get breakpoint status"); 
-	case EMBKPTNONE:return("EMBKPTNONE: All breakpoints in use"); 
-	case EMBKPTUSED:return("EMBKPTUSED: Breakpoints already in use"); 
-	case EMINIT: 	return("EMINIT: Could not init target memory"); 
-	case EMGO: 	return("EMGO: Could not start execution"); 
-	case EMSTEP: 	return("EMSTEP: Could not single step"); 
-	case EMBREAK: 	return("EMBREAK: Could not BREAK"); 
-	case EMCOMMERR: return("EMCOMMERR: Communication error"); 
-	default:     	sprintf(cbuf,"error number %d",code); break;
-	} /* end switch */
-
-	return (cbuf);
-}
-/****************************************************************************/
-/* 
- *  Receive a message and expect it to be of type msgcode.
- *  Returns 0/1 on failure/success.
- */
-static int
-expect_msg(msgcode,msg_buf,from_tty)
-INT32	msgcode;		/* Msg code we expect */
-union msg_t *msg_buf;		/* Where to put  the message received */
-int	from_tty;		/* Print message on error if non-zero */
-{
-  int	retries=0;
-  while(msg_recv_serial(msg_buf) && (retries++<MAX_RETRIES)); 
-  if (retries >= MAX_RETRIES) {
-	printf("Expected msg %s, ",msg_str(msgcode));
-	printf("no message received!\n");
-        return(0);		/* Failure */
-  }
-
-  if (msg_buf->generic_msg.code != msgcode) {
-     if (from_tty) {
-	printf("Expected msg %s, ",msg_str(msgcode));
-	printf("got msg %s\n",msg_str(msg_buf->generic_msg.code));
-        if (msg_buf->generic_msg.code == ERROR) 
-		printf("%s\n",error_msg_str(msg_buf->error_msg.error_code));
-     }
-     return(0);			/* Failure */
-  }
-  return(1);			/* Success */
-}	
-/****************************************************************************/
-/*
- * Determine the MiniMon memory space qualifier based on the addr. 
- * FIXME: Can't distinguis I_ROM/D_ROM.  
- * FIXME: Doesn't know anything about I_CACHE/D_CACHE.
- */
-static int
-mm_memory_space(addr)
-CORE_ADDR	*addr;
-{
-	ADDR32 tstart = target_config.I_mem_start;
-	ADDR32 tend   = tstart + target_config.I_mem_size;  
-	ADDR32 dstart = target_config.D_mem_start;
-	ADDR32 dend   = tstart + target_config.D_mem_size;  
-	ADDR32 rstart = target_config.ROM_start;
-	ADDR32 rend   = tstart + target_config.ROM_size;  
-
-	if (((ADDR32)addr >= tstart) && ((ADDR32)addr < tend)) { 
-		return I_MEM;
-	} else if (((ADDR32)addr >= dstart) && ((ADDR32)addr < dend)) { 
-		return D_MEM;
-	} else if (((ADDR32)addr >= rstart) && ((ADDR32)addr < rend)) {
-		/* FIXME: how do we determine between D_ROM and I_ROM */
-		return D_ROM;
-	} else	/* FIXME: what do me do now? */
-		return D_MEM;	/* Hmmm! */
-}
-
-/****************************************************************************/
-/* 
- *  Define the target subroutine names
- */
-struct target_ops mm_ops ;
-
-static void 
-init_mm_ops(void)
-{
-  mm_ops.to_shortname =   "minimon";
-  mm_ops.to_longname =   "Remote AMD/Minimon target";
-  mm_ops.to_doc =   "Remote debug an AMD 290*0 using the MiniMon dbg core on the target";
-  mm_ops.to_open =   mm_open;
-  mm_ops.to_close =   mm_close;
-  mm_ops.to_attach =   mm_attach;
-  mm_ops.to_post_attach = NULL;
-  mm_ops.to_require_attach = NULL;
-  mm_ops.to_detach =   mm_detach;
-  mm_ops.to_require_detach = NULL;
-  mm_ops.to_resume =   mm_resume;
-  mm_ops.to_wait  =   mm_wait;
-  mm_ops.to_post_wait = NULL;
-  mm_ops.to_fetch_registers  =   mm_fetch_registers;
-  mm_ops.to_store_registers  =   mm_store_registers;
-  mm_ops.to_prepare_to_store =   mm_prepare_to_store;
-  mm_ops.to_xfer_memory  =   mm_xfer_inferior_memory;
-  mm_ops.to_files_info  =   mm_files_info;
-  mm_ops.to_insert_breakpoint =   mm_insert_breakpoint;
-  mm_ops.to_remove_breakpoint =   mm_remove_breakpoint;
-  mm_ops.to_terminal_init  =   0;
-  mm_ops.to_terminal_inferior =   0;
-  mm_ops.to_terminal_ours_for_output =   0;
-  mm_ops.to_terminal_ours  =   0;
-  mm_ops.to_terminal_info  =   0;        
-  mm_ops.to_kill  =   mm_kill;           
-  mm_ops.to_load  =   mm_load;
-  mm_ops.to_lookup_symbol =   0;           
-  mm_ops.to_create_inferior =   mm_create_inferior;
-  mm_ops.to_post_startup_inferior = NULL;
-  mm_ops.to_acknowledge_created_inferior = NULL;
-  mm_ops.to_clone_and_follow_inferior = NULL;
-  mm_ops.to_post_follow_inferior_by_clone = NULL;
-  mm_ops.to_insert_fork_catchpoint = NULL;
-  mm_ops.to_remove_fork_catchpoint = NULL;
-  mm_ops.to_insert_vfork_catchpoint = NULL;
-  mm_ops.to_remove_vfork_catchpoint = NULL;
-  mm_ops.to_has_forked = NULL;
-  mm_ops.to_has_vforked = NULL;
-  mm_ops.to_can_follow_vfork_prior_to_exec = NULL;
-  mm_ops.to_post_follow_vfork = NULL; 
-  mm_ops.to_insert_exec_catchpoint = NULL;
-  mm_ops.to_remove_exec_catchpoint = NULL;
-  mm_ops.to_has_execd = NULL;
-  mm_ops.to_reported_exec_events_per_exec_call = NULL;
-  mm_ops.to_has_exited = NULL;
-  mm_ops.to_mourn_inferior =   mm_mourn; 
-  mm_ops.to_can_run  =   0;	
-  mm_ops.to_notice_signals =   0;
-  mm_ops.to_thread_alive  =   0;
-  mm_ops.to_stop  =   0;		
-  mm_ops.to_pid_to_exec_file = NULL;
-  mm_ops.to_core_file_to_sym_file = NULL;
-  mm_ops.to_stratum =   process_stratum;
-  mm_ops.DONT_USE =   0; 
-  mm_ops.to_has_all_memory =   1;
-  mm_ops.to_has_memory =   1;
-  mm_ops.to_has_stack =   1;
-  mm_ops.to_has_registers =   1;
-  mm_ops.to_has_execution =   1; 
-  mm_ops.to_sections =   0;
-  mm_ops.to_sections_end =   0;	
-  mm_ops.to_magic =   OPS_MAGIC;    
-};
-
-void
-_initialize_remote_mm()
-{
-  init_mm_ops() ;
-  add_target (&mm_ops);
-}
-
-#ifdef NO_HIF_SUPPORT
-service_HIF(msg)
-union msg_t	*msg;
-{
-	return(0);	/* Emulate a failure */
-}
-#endif