rename for 14-char filenames

2 files changed, 0 insertions, 3095 deletions

diff --git a/gdb/remote-es1800.c b/gdb/remote-es1800.c
index 1c442d5..e69de29 100644
--- a/gdb/remote-es1800.c
+++ b/gdb/remote-es1800.c
@@ -1,2262 +0,0 @@
-/* Memory-access and commands for remote es1800 processes, for GDB.
-   Copyright (C) 1988, 1992 Free Software Foundation, Inc.
-
-   This file is added to GDB to make it possible to do debugging via an
-   ES-1800 emulator. The code was originally written by Johan Holmberg
-   TT/SJ Ericsson Telecom AB and later modified by Johan Henriksson
-   TT/SJ. It was modified for gdb 4.0 by TX/DK Jan Nordenand by TX/DKG
-   Harald Johansen.
-
-This file is part of GDB.
-
-GDB 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 1, or (at your option)
-any later version.
-
-GDB 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 GDB; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-
-/* Emulator communication protocol.
-   All values are encoded in ascii hex digits.
-
-        Request
-Command
-Reply
-	read registers:
-DR<cr>
-     - 0 -    - 1 -    - 2 -    - 3 -      - 4 -    - 5 -    -- 6 -   - 7 - 
-D = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX   XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
-A = XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX   XXXXXXXX XXXXXXXX XXXXXXXX 
-    PC = XXXXXX       SSP = XXXXXX    USP = XXXXXX     SR = XXXXXXXX
- >
-Each byte of register data is described by two hex digits.
-
-	write regs
-D0=XXXXXXXX<cr>
- >D1=XXXXXXXX<cr>
- >D2=XXXXXXXX<cr>
- >D3=XXXXXXXX<cr>
- >D4=XXXXXXXX<cr>
- >D5=XXXXXXXX<cr>
- >D6=XXXXXXXX<cr>
- >D7=XXXXXXXX<cr>
- >A0=XXXXXXXX<cr>
- >A1=XXXXXXXX<cr>
- >A2=XXXXXXXX<cr>
- >A3=XXXXXXXX<cr>
- >A4=XXXXXXXX<cr>
- >A5=XXXXXXXX<cr>
- >A6=XXXXXXXX<cr>
- >A7=XXXXXXXX<cr>
- >SR=XXXXXXXX<cr>
- >PC=XXXXXX<cr>
- >
-Each byte of register data is described by two hex digits.
-
-	read mem
-@.BAA..AA
-$FFFFFFXX
- >
-AA..AA is address, XXXXXXX is the contents
-
-	write mem
-	@.BAA..AA=$XXXXXXXX
- >
-AA..AA is address, XXXXXXXX is data
-
-	cont
-PC=$AA..AA
- >RBK
-R>
-AA..AA is address to resume. If AA..AA is omitted, resume at same address.
-
-	step
-PC=$AA..AA
- >STP
-R>
-AA..AA is address to resume. If AA..AA is omitted, resume at same address.
-
-	kill req
-STP
- >
-*/
-
-
-#include <stdio.h>
-#include <signal.h>
-#include <sys/ioctl.h>
-#include <sys/file.h>
-#include <errno.h>
-#include <ctype.h>
-#include <string.h>
-#include <setjmp.h>
-#include <fcntl.h>
-#include "defs.h"
-#include "frame.h"
-#include "inferior.h"
-#include "target.h"
-#include "wait.h"
-#include "terminal.h"
-#include "command.h"
-
-#ifdef USG
-#include <sys/types.h>
-#include <sgtty.h>
-#endif
-
-#include <signal.h>
-
-/* External variables referenced. */
-
-extern bfd *exec_bfd;
-
-/* Prototypes for local functions */
-
-static void
-es1800_child_detach PARAMS ((char *, int));
-
-static void
-es1800_child_open PARAMS ((char *, int));
-
-static void 
-es1800_transparent PARAMS ((char *, int));
-
-static void
-es1800_create_inferior PARAMS ((char *, char *, char **));
-
-static void
-es1800_load PARAMS ((char *, int));
-
-static void
-es1800_kill PARAMS ((void));
-
-static int
-verify_break PARAMS ((int));
-
-static int
-es1800_remove_breakpoint PARAMS ((CORE_ADDR, char *));
-
-static int
-es1800_insert_breakpoint PARAMS ((CORE_ADDR, char *));
-
-static void
-es1800_files_info PARAMS ((struct target_ops *));
-
-static int
-es1800_xfer_inferior_memory PARAMS ((CORE_ADDR, char *, int, int,
-				     struct target_ops *));
-
-static void 
-es1800_prepare_to_store PARAMS ((void));
-
-static int
-es1800_wait PARAMS ((WAITTYPE *));
-
-static void
-es1800_resume PARAMS ((int, int));
-
-static void
-es1800_detach PARAMS ((char *, int));
-
-static void
-es1800_attach PARAMS ((char *, int));
-
-static int
-damn_b PARAMS ((char *));
-
-static void
-es1800_open PARAMS ((char *, int));
-
-static void
-es1800_timer PARAMS ((void));
-
-static void
-es1800_reset PARAMS ((char *));
-
-static void
-es1800_request_quit PARAMS ((void));
-
-static int
-readchar PARAMS ((void));
-
-static void
-expect PARAMS ((char *, int));
-
-static void
-expect_prompt PARAMS ((void));
-
-static void
-download PARAMS ((FILE *, int, int));
-
-#if 0
-static void
-bfd_copy PARAMS ((bfd *, bfd *));
-#endif
-
-static void
-get_break_addr PARAMS ((int, CORE_ADDR *));
-
-static int
-fromhex PARAMS ((int));
-
-static int
-tohex PARAMS ((int));
-
-static void
-es1800_close PARAMS ((int));
-
-static void
-es1800_fetch_registers PARAMS ((void));
-
-static void
-es1800_fetch_register PARAMS ((int));
-
-static void
-es1800_store_register PARAMS ((int));
-
-static void
-es1800_read_bytes PARAMS ((CORE_ADDR, char *, int));
-
-static void
-es1800_write_bytes PARAMS ((CORE_ADDR, char *, int));
-
-static void
-send_with_reply PARAMS ((char *, char *, int));
-
-static void
-send_command PARAMS ((char *));
-
-static void
-send PARAMS ((char *));
-
-static void
-getmessage PARAMS ((char *, int));
-
-static void
-es1800_mourn_inferior PARAMS ((void));
-
-static void
-es1800_create_break_insn PARAMS ((char *, int));
-
-static void
-es1800_init_break PARAMS ((char *, int));
-
-/* Local variables */
-
-#define LOG_FILE "es1800.log"
-#if defined (LOG_FILE)
-static FILE *log_file;
-#endif
-
-extern struct target_ops es1800_ops;		/* Forward decl */
-extern struct target_ops es1800_child_ops;	/* Forward decl */
-
-static int kiodebug;
-static int timeout = 100; 
-static char *savename;				/* Name of i/o device used */
-static TERMINAL es1800_sg_save;			/* Save stty state */
-static int es1800_fc_save;			/* Save fcntl state */
-
-/* indicates that the emulator uses 32-bit data-adress (68020-mode) 
-   instead of 24-bit (68000 -mode) */
-
-static int m68020;
-
-#define MODE (m68020 ? "M68020" : "M68000" )
-#define ES1800_BREAK_VEC (0xf)
-
-/* Descriptor for I/O to remote machine.  Initialize it to -1 so that
-   es1800_open knows that we don't have a file open when the program
-   starts.  */
-
-static int es1800_desc = -1;
-
-#define	PBUFSIZ	1000
-#define HDRLEN sizeof("@.BAAAAAAAA=$VV\r")
-
-/* Maximum number of bytes to read/write at once.  The value here
-   is chosen to fill up a packet.  */
-
-#define MAXBUFBYTES ((PBUFSIZ-150)*16/75 )
-
-static int es1800_break_vec = 0;
-static char es1800_break_insn[2];
-static long es1800_break_address;
-static void (*old_sigint)();		/* Old signal-handler for sigint */
-static jmp_buf interrupt;
-
-/* Local signalhandler to allow breaking tranfers or program run.
-   Rely on global variables: old_sigint(), interrupt */
-
-static void
-es1800_request_quit ()
-{
-  /* restore original signalhandler */
-  signal (SIGINT, old_sigint);
-  longjmp (interrupt, 1);
-}
-
-
-/* Reset emulator.
-   Sending reset character(octal 32) to emulator.
-   quit - return to '(esgdb)' prompt or continue	*/
-
-static void
-es1800_reset (quit)
-     char *quit;
-{
-  char buf[80];
-
-  if (quit)
-    {
-      printf ("\nResetting emulator...  ");
-    }
-  strcpy (buf, "\032");
-  send (buf);
-  expect_prompt ();
-  if (quit)
-    {
-      error ("done\n");
-    }
-}
-
-
-/* Called when SIGALRM signal sent due to alarm() timeout.
-   Rely on global variables: timeout  */
-
-#ifndef HAVE_TERMIO
-
-static void
-es1800_timer ()
-{
-  if (kiodebug)
-    {
-      printf ("es1800_timer called\n");
-    }
-  alarm (timeout);
-}
-
-#endif	/* HAVE_TERMIO */
-
-
-/* Open a connection to a remote debugger and push the new target
-   onto the stack. Check if the emulator is responding and find out
-   what kind of processor the emulator is connected to.
-   Initiate the breakpoint handling in the emulator.
-
-   name     - the filename used for communication (ex. '/dev/tta')
-   from_tty - says whether to be verbose or not */
-
-static void
-es1800_open (name, from_tty)
-     char *name;
-     int from_tty;
-{
-  TERMINAL sg;
-  char buf[PBUFSIZ];
-  char *p;
-  int i, fcflag;
-  char *baudrate;
-
-  m68020 = 0;
-
-  if (!name)           /* no device name given in target command */
-    {
-      error_no_arg ("serial port device name");
-    }
-  baudrate = baud_rate ? baud_rate : "19200";  /* default baudrate = 19200 */
-
-  target_preopen (from_tty);
-  es1800_close (0);
-
-  /* open the device and configure it for communication */
-
-#ifndef DEBUG_STDIN
-
-  es1800_desc = open (name, O_RDWR);
-  if (es1800_desc < 0)
-    {
-      perror_with_name (name);
-    }
-  savename = savestring (name, strlen (name));
-
-  if (ioctl (es1800_desc, TIOCGETP, &sg) == -1)
-    {
-      perror_with_name (name);
-    }
-  es1800_sg_save = sg;
-
-  if ((fcflag = fcntl (es1800_desc, F_GETFL, 0)) == -1)
-    {
-      perror_with_name ("fcntl serial");
-    }
-  es1800_fc_save = fcflag;
-
-  fcflag = (fcflag & (FREAD | FWRITE)); /* mask out any funny stuff */
-  if (fcntl (es1800_desc, F_SETFL, fcflag) == -1)
-    {
-      perror_with_name ("fcntl serial");
-    }
-
-#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 = CBREAK+TANDEM;
-#endif
-
-  if ((ioctl (es1800_desc, TIOCSETP, &sg)) == -1)
-    {
-      perror ("es1800_open: error in ioctl");
-    }
-
-#endif	/* DEBUG_STDIN */
-
-  push_target (&es1800_ops);	/* Switch to using remote target now */
-  if (from_tty)
-    {
-      printf ("Remote ES1800 debugging using %s\n", name);
-    }
-
-#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 ("es1800_open: error in siginterrupt");
-    }
-
-#endif	/* NO_SIGINTERRUPT */
-
-  /* Set up read timeout timer.  */
-
-  if ((void(*)()) signal (SIGALRM, es1800_timer) == (void(*)()) -1)
-    {
-      perror ("es1800_open: error in signal");
-    }
-
-#endif	/* HAVE_TERMIO */
-
-
-#if defined (LOG_FILE)
-
-  log_file = fopen (LOG_FILE, "w");
-  if (log_file == NULL)
-    {
-      perror_with_name (LOG_FILE);
-    }
-
-#endif	/* LOG_FILE */
-
-  /* Hello?  Are you there?, also check mode  */
-
-  /*  send_with_reply( "DB 0 TO 1", buf, sizeof(buf)); */
-  /*  for (p = buf, i = 0; *p++ =='0';)  */   /* count the number of zeros */
-  /*      i++; */
-
-  send ("\032");
-  getmessage (buf, sizeof (buf));  /* send reset character */
-
-  if (from_tty)
-    {
-      printf ("Checking mode.... ");
-    }
-  /*  m68020 = (i==8); */   /* if eight zeros then we are in m68020 mode */
-
-  /* What kind of processor am i talking to ?*/
-  p = buf;
-  while (*p++ != '\n') {;}
-  while (*p++ != '\n') {;}
-  while (*p++ != '\n') {;}
-  for (i = 0; i < 20; i++, p++) {;}
-  m68020 = !strncmp (p, "68020", 5);
-  if (from_tty)
-    {
-      printf ("You are in %s(%c%c%c%c%c)-mode\n", MODE, p[0], p[1], p[2],
-	      p[3], p[4]);
-    }
-
-  /* if no init_break statement is present in .gdb file we have to check 
-     whether to download a breakpoint routine or not */
-
-#if 0
-  if ((es1800_break_vec == 0) || (verify_break (es1800_break_vec) != 0)
-      && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? "))
-    {
-      CORE_ADDR memaddress;
-      printf ("Give the start address of the breakpoint routine: ");
-      scanf ("%li", &memaddress);
-      es1800_init_break ((es1800_break_vec ? es1800_break_vec :
-			  ES1800_BREAK_VEC), memaddress);
-    }
-#endif
-
-}
-
-/*  Close out all files and local state before this target loses control.
-    quitting - are we quitting gdb now? */
-
-static void
-es1800_close (quitting)
-     int quitting;
-{
-  if (es1800_desc >= 0)
-    {
-      printf ("\nClosing connection to emulator...\n");
-      ioctl (es1800_desc, TIOCSETP, &es1800_sg_save);
-      fcntl (es1800_desc,F_SETFL, es1800_fc_save);
-      close (es1800_desc);
-      es1800_desc = -1;
-    }
-  if (savename != NULL)
-    {
-      free (savename);
-    }
-  savename = NULL;
-
-#if defined (LOG_FILE)
-
-  if (log_file != NULL)
-    {
-      if (ferror (log_file))
-	{
-	  printf ("Error writing log file.\n");
-	}
-      if (fclose (log_file) != 0)
-	{
-	  printf ("Error closing log file.\n");
-	}
-      log_file = NULL;
-    }
-
-#endif	/* LOG_FILE */
-
-}
-
-/* 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.
-   rate - the baudrate given as a string
-   return value: the baudrate as a B_code */
-
-#ifndef B19200
-#  define B19200 EXTA
-#endif
-#ifndef B38400
-#  define B38400 EXTB
-#endif
-
-struct
-{
-  char *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},
-  {0, -1},
-};
-
-static int
-damn_b (rate)
-     char *rate;
-{
-  int i;
-
-  for (i = 0; baudtab[i].rate != 0; i++)
-    {
-      if (STREQ (rate, baudtab[i].rate))
-	{
-	  return (baudtab[i].damn_b);
-	}
-    }
-  error ("Illegal baudrate");
-}
-
-
-/*  Attaches to a process on the target side
-    proc_id  - the id of the process to be attached.
-    from_tty - says whether to be verbose or not */
-
-static void
-es1800_attach (args, from_tty)
-    char *args;
-    int from_tty;
-{
-  error ("Cannot attach to pid %s, this feature is not implemented yet.",
-	 args);
-}
-
-
-/* Takes a program previously attached to and detaches it.
-   We better not have left any breakpoints
-   in the program or it'll die when it hits one.
-   Close the open connection to the remote debugger.
-   Use this when you want to detach and do something else
-   with your gdb.
- 
-   args     - arguments given to the 'detach' command
-   from_tty - says whether to be verbose or not */
-
-static void
-es1800_detach (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  if (args)
-    {
-      error ("Argument given to \"detach\" when remotely debugging.");
-    }
-  pop_target ();
-  if (from_tty)
-    {
-      printf ("Ending es1800 remote debugging.\n");
-    }
-}
-
-
-/* Tell the remote machine to resume.
-   step    - single-step or run free
-   siggnal - the signal value to be given to the target (0 = no signal) */
-
-static void
-es1800_resume (step, siggnal)
-     int step;
-     int siggnal;
-{
-  char buf[PBUFSIZ];
-
-  if (siggnal)
-    {
-      error ("Can't send signals to a remote system.");
-    }
-  if (step)
-    {
-      strcpy (buf,"STP\r");
-      send (buf);
-    }
-  else
-    {
-      send_command ("RBK");
-    }
-}
-
-/* Wait until the remote machine stops, then return,
-   storing status in STATUS just as `wait' would.
-   status -  */
- 
-static int
-es1800_wait (status)
-     WAITTYPE *status;
-{
-  unsigned char buf[PBUFSIZ];
-  int old_timeout = timeout;
-
-  WSETEXIT ((*status), 0);
-  timeout = 0;		/* Don't time out -- user program is running. */
-  if (!setjmp (interrupt))
-    {
-      old_sigint = signal (SIGINT, es1800_request_quit);
-      while (1)
-        {
-	  getmessage (buf, sizeof(buf));
-	  if (strncmp ( buf, "\r\n* BREAK *", 11) == 0) 
-	    {
-	      WSETSTOP ((*status), SIGTRAP);
-	      send_command ("STP");	/* Restore stack and PC and such */
-	      if (m68020)
-		{
-		  send_command ("STP");
-		}
-	      break;
-	    }
-	  if (strncmp (buf, "STP\r\n ", 6) == 0)
-	    {
-	      WSETSTOP ((*status), SIGTRAP);
-	      break;
-	    }
-	  if (buf[strlen (buf) - 2] == 'R')
-	    {
-	      printf ("Unexpected emulator reply: \n%s\n", buf);
-	    }
-	  else
-	    {
-	      printf ("Unexpected stop: \n%s\n", buf);
-	      WSETSTOP ((*status), SIGQUIT);
-	      break;
-	    }
-        }
-    }
-  else
-    {
-      fflush (stdin);
-      printf ("\nStopping emulator...");
-      if (!setjmp (interrupt))
-	{
-	  old_sigint = signal (SIGINT, es1800_request_quit);
-	  send_command ("STP");
-	  printf (" emulator stopped\n");
-	  WSETSTOP ((*status), SIGINT);
-        }
-      else
-	{
-	  fflush (stdin);
-	  es1800_reset ((char*) 1);
-	}
-    }
-  signal (SIGINT, old_sigint);
-  timeout = old_timeout;
-  return (0);
-}
-
-
-/* Fetch register values from remote machine.
-   regno - the register to be fetched (fetch all registers if -1) */
-
-static void
-es1800_fetch_register (regno)
-     int regno;
-{
-  char buf[PBUFSIZ];
-  int k;
-  int r;
-  char *p;
-  static char regtab[18][4] = 
-    {
-      "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ",
-      "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP",
-      "SR ", "PC "
-    };
-
-  if ((regno < 15) || (regno == 16) || (regno == 17))
-    {
-      r = regno * 4;
-      send_with_reply (regtab[regno], buf, sizeof (buf));
-      p = buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0))
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]);
-	}
-    }
-  else
-    {
-      es1800_fetch_registers ();
-    }
-}
-
-/* Read the remote registers into REGISTERS.
-   Always fetches all registers. */
-
-static void
-es1800_fetch_registers ()
-{
-  char buf[PBUFSIZ];
-  char SR_buf[PBUFSIZ];
-  int i;
-  int k;
-  int r;
-  char *p;
-
-  send_with_reply ("DR", buf, sizeof (buf));
-
-  /* Reply is edited to a string that describes registers byte by byte,
-     each byte encoded as two hex characters.  */
-
-  p = buf;
-  r = 0;
-
-  /*  parsing row one - D0-D7-registers  */
-
-  while (*p++ != '\n') {;}
-  for (i = 4; i < 70; i += (i == 39 ? 3 : 1))
-    {
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[i+0] == 0 || p[i+1] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = (fromhex (p[i+0]) * 16) + fromhex (p[i+1]);
-	  i += 2;
-	}
-    }
-  p += i;
-
-  /*  parsing row two - A0-A6-registers  */
-
-  while (*p++ != '\n') {;}
-  for (i = 4; i < 61; i += (i == 39 ? 3 : 1))
-    {
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[i+0] == 0 || p[i+1] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = (fromhex (p[i+0])) * 16 + fromhex (p[i+1]);
-	  i += 2;
-	}
-    }
-  p += i;
-
-  while (*p++ != '\n') {;}
-
-  /* fetch SSP-, SR- and PC-registers  */
-
-  /* first - check STATUS-word and decide which stackpointer to use */
-
-  send_with_reply ("SR", SR_buf, sizeof (SR_buf));
-  p = SR_buf;
-  p += 5;
-
-  if (m68020)
-    {
-      if (*p == '3')		 /* use masterstackpointer MSP */
-	{
-	  send_with_reply ("MSP", buf, sizeof (buf));
-	}
-      else if (*p == '2')	/* use interruptstackpointer ISP  */
-	{
-	  send_with_reply ("ISP", buf, sizeof (buf));
-	}
-      else			/* use userstackpointer USP  */
-	{
-	  send_with_reply ("USP", buf, sizeof (buf)); 
-	}
-      p = buf;
-      for (k = 0; k<4; k++)
-	{
-	  if (p[k*2+1] == 0 || p[k*2+2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]);
-	}
-
-      p = SR_buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[k*2+1] == 0 || p[k*2+2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] =
-	    fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]);
-	}
-      send_with_reply ("PC", buf, sizeof (buf));
-      p = buf;
-      for (k = 0; k<4; k++)
-	{
-	  if (p[k*2+1] == 0 || p[k*2+2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]);
-	}
-    }
-  else    /* 68000-mode */
-    {                       
-      if (*p == '2') /* use supervisorstackpointer SSP  */
-	{
-	  send_with_reply ("SSP", buf, sizeof (buf)); 
-	}
-      else  /* use userstackpointer USP  */
-	{
-	  send_with_reply ("USP", buf, sizeof (buf)); 
-	}
-
-      /* fetch STACKPOINTER */
-
-      p = buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[k*2 + 1] == 0 || p[k*2 + 2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]);
-	}
-
-      /* fetch STATUS */
-
-      p = SR_buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[k*2+1] == 0 || p[k*2+2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] =
-	    fromhex (SR_buf[k*2+1]) * 16 + fromhex (SR_buf[k*2+2]);
-	}
-
-      /* fetch PC */
-
-      send_with_reply ("PC", buf, sizeof (buf)); 
-      p = buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if (p[k*2+1] == 0 || p[k*2+2] == 0)
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  registers[r++] = fromhex (buf[k*2+1]) * 16 + fromhex (buf[k*2+2]);
-	}    
-    }
-}
-
-/* Store register value, located in REGISTER, on the target processor.
-   regno - the register-number of the register to store
-           (-1 means store them all)
-   FIXME: Return errno value.  */
-
-static void
-es1800_store_register(regno)
-     int regno;
-{
-
-  static char regtab[18][4] =
-    {
-      "D0 ", "D1 ", "D2 ", "D3 ", "D4 ", "D5 ", "D6 ", "D7 ",
-      "A0 ", "A1 ", "A2 ", "A3 ", "A4 ", "A5 ", "A6 ", "SSP",
-      "SR ", "PC "
-    };
-
-  char buf[PBUFSIZ];
-  char SR_buf[PBUFSIZ];
-  char stack_pointer[4];
-  char *p;
-  int i;
-  int j;
-  int k;
-  unsigned char *r;
-
-  r = (unsigned char *) registers;
-
-  if (regno == -1)  /* write all registers */
-    {
-      j = 0;
-      k = 18;
-    }
-  else              /* write one register */
-    {
-      j = regno;
-      k = regno+1;
-      r += regno * 4; 
-    }    
-
-  if ((regno == -1) || (regno == 15))
-    {
-      /* fetch current status */
-      send_with_reply ("SR", SR_buf, sizeof (SR_buf));
-      p = SR_buf;
-      p += 5;
-      if (m68020)
-	{
-	  if (*p == '3') /* use masterstackpointer MSP */
-	    {
-	      strcpy (stack_pointer,"MSP");  
-	    }
-	  else
-	    {
-	      if (*p == '2') /* use interruptstackpointer ISP  */
-		{
-		  strcpy (stack_pointer,"ISP");  
-		}
-	      else
-		{
-		  strcpy (stack_pointer,"USP");  /* use userstackpointer USP  */
-		}
-	    }
-	}
-      else  /* 68000-mode */
-	{
-	  if (*p == '2') /* use supervisorstackpointer SSP  */
-	    {
-	      strcpy (stack_pointer,"SSP");  
-	    }
-	  else
-	    {
-	      strcpy (stack_pointer,"USP");/* use userstackpointer USP  */  
-	    }
-	}
-      strcpy (regtab[15],stack_pointer);
-    }
-
-  for (i = j; i<k; i++)
-    {
-      buf[0] = regtab[i][0];
-      buf[1] = regtab[i][1];
-      buf[2] = regtab[i][2];
-      buf[3] = '=';
-      buf[4] = '$';
-      buf[5] = tohex ((*r >> 4) & 0x0f);
-      buf[6] = tohex (*r++ & 0x0f);
-      buf[7] = tohex ((*r >> 4) & 0x0f);
-      buf[8] = tohex (*r++ & 0x0f);
-      buf[9] = tohex ((*r >> 4) & 0x0f);
-      buf[10] = tohex (*r++ & 0x0f);
-      buf[11] = tohex ((*r >> 4) & 0x0f);
-      buf[12] = tohex (*r++ & 0x0f);
-      buf[13] = 0;
-
-      send_with_reply (buf, buf, sizeof (buf)); /* FIXME, reply not used? */
-    }
-}
-
-
-/* Prepare to store registers.  */
-
-static void 
-es1800_prepare_to_store ()
-{
-  /* Do nothing, since we can store individual regs */
-}
-
-/* Convert hex digit A to a number.  */
-
-static int
-fromhex (a)
-     int a;
-{
-  if (a >= '0' && a <= '9')
-    {
-      return a - '0';
-    }
-  else if (a >= 'a' && a <= 'f')
-    {
-      return a - 'a' + 10;
-    }
-  else if (a >= 'A' && a <= 'F')
-    {
-      return a - 'A' + 10;
-    }
-  else
-    {
-      error ("Reply contains invalid hex digit");
-    }
-  return (-1);
-}
-
-
-/* Convert number NIB to a hex digit.  */
-
-static int
-tohex (nib)
-     int nib;
-{
-  if (nib < 10)
-    {
-      return ('0' + nib);
-    }
-  else
-    {
-      return ('A' + nib - 10);
-    }
-}
-
-/* Read or write LEN bytes from inferior memory at MEMADDR, transferring
-   to or from debugger address MYADDR.  Write to inferior if WRITE is
-   nonzero.  Returns length of data written or read; 0 for error. 
- 
-   memaddr - the target's address
-   myaddr  - gdb's address
-   len     - number of bytes 
-   write   - write if != 0 otherwise read	*/
-
-static int
-es1800_xfer_inferior_memory (memaddr, myaddr, len, write, tops)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-     struct target_ops *tops;	/* Unused */
-{
-  int origlen = len;
-  int xfersize;
-
-  while (len > 0)
-    {
-      xfersize = len > MAXBUFBYTES ? MAXBUFBYTES : len;
-      if (write)
-	{
-	  es1800_write_bytes (memaddr, myaddr, xfersize);
-	}
-      else
-	{
-	  es1800_read_bytes (memaddr, myaddr, xfersize);
-	}
-      memaddr += xfersize;
-      myaddr += xfersize;
-      len -= xfersize;
-    }
-  return (origlen); /* no error possible */
-}
-
-
-/* Write memory data directly to the emulator.
-   This does not inform the data cache; the data cache uses this.
-   MEMADDR is the address in the remote memory space.
-   MYADDR is the address of the buffer in our space.
-   LEN is the number of bytes.
- 
-   memaddr - the target's address
-   myaddr  - gdb's address
-   len     - number of bytes   */
-
-static void
-es1800_write_bytes (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  char buf[PBUFSIZ];
-  int i;
-  char *p;
-
-  p = myaddr;
-  for (i = 0; i < len; i++)
-    {
-      sprintf (buf, "@.B$%x=$%x", memaddr+i, (*p++) & 0xff);
-      send_with_reply (buf, buf, sizeof (buf));      /* FIXME send_command? */
-    }
-}
-
-
-/* Read memory data directly from the emulator.
-   This does not use the data cache; the data cache uses this.
- 
-   memaddr - the target's address
-   myaddr  - gdb's address
-   len     - number of bytes   */
-
-static void
-es1800_read_bytes (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  static int DB_tab[16] = {8,11,14,17,20,23,26,29,34,37,40,43,46,49,52,55};
-  char buf[PBUFSIZ];
-  int i;
-  int low_addr;
-  char *p;
-  char *b;
-
-  if (len > PBUFSIZ / 2 - 1)
-    {
-      abort ();
-    }
-
-  if (len == 1)	/* The emulator does not like expressions like:  */
-    {
-      len = 2;	/* DB.B $20018 TO $20018                       */
-    }
-
-  /* Reply describes registers byte by byte, each byte encoded as two hex
-     characters.  */
-
-  sprintf (buf, "DB.B $%x TO $%x", memaddr, memaddr+len-1);
-  send_with_reply (buf, buf, sizeof (buf));
-  b = buf;
-  low_addr = memaddr&0x0f;
-  for (i = low_addr; i < low_addr + len; i++)
-    {
-      if ((!(i % 16)) && i)
-	{   /* if (i = 16,32,48)  */
-	  while (*p++!='\n') {;}
-	  b = p;
-	}
-      p = b + DB_tab[i%16] + (m68020 ? 2 : 0);
-      if (p[0] == 32 || p[1] == 32)
-	{
-	  error ("Emulator reply is too short: %s", buf);
-	}
-      myaddr[i-low_addr] = fromhex (p[0]) * 16 + fromhex (p[1]);
-    }
-}
-
-/* Information about the current target  */
-
-static void
-es1800_files_info (tops)
-     struct target_ops *tops;	/* Unused */
-{
-  printf ("ES1800 Attached to %s at %d baud in %s mode\n", savename, 19200,
-	  MODE);
-}
-
-
-/* We read the contents of the target location and stash it,
-   then overwrite it with a breakpoint instruction.
- 
-   addr           - is the target location in the target machine.
-   contents_cache - is a pointer to memory allocated for saving the target contents.
-                    It is guaranteed by the caller to be long enough to save sizeof 
-                    BREAKPOINT bytes.
- 
-   FIXME: This size is target_arch dependent and should be available in
-   the target_arch transfer vector, if we ever have one...  */
-
-static int
-es1800_insert_breakpoint (addr, contents_cache)
-     CORE_ADDR addr;
-     char *contents_cache;
-{
-  int val; 
-
-  val = target_read_memory (addr, contents_cache, sizeof (es1800_break_insn));
-
-  if (val == 0)
-    {
-      val = target_write_memory (addr, es1800_break_insn,
-				 sizeof (es1800_break_insn));
-    }
-
-  return (val);
-}
-
-
-/* Write back the stashed instruction
- 
-   addr           - is the target location in the target machine.
-   contents_cache - is a pointer to memory allocated for saving the target contents.
-                    It is guaranteed by the caller to be long enough to save sizeof 
-                    BREAKPOINT bytes.	*/
- 
-static int
-es1800_remove_breakpoint (addr, contents_cache)
-     CORE_ADDR addr;
-     char *contents_cache;
-{
-
-  return (target_write_memory (addr, contents_cache,
-			       sizeof (es1800_break_insn)));
-}
-
-/* create_break_insn ()
-   Primitive datastructures containing the es1800 breakpoint instruction  */
-
-static void
-es1800_create_break_insn (ins, vec)
-     char *ins;
-     int vec;
-{
-  if (vec == 15)
-    {
-      ins[0] = 0x4e;
-      ins[1] = 0x4f;
-    }
-}
-
-
-/* verify_break ()
-   Seach for breakpoint routine in emulator memory.
-   returns non-zero on failure
-   vec - trap vector used for breakpoints  */
-
-static int
-verify_break (vec)
-     int vec;
-{
-  CORE_ADDR memaddress;
-  char buf[8];
-  char *instr = "NqNqNqNs";      /* breakpoint routine */
-  int status;
-
-  get_break_addr (vec, &memaddress);
-
-  if (memaddress)
-    {
-      status = target_read_memory (memaddress, buf, 8); 
-      if (status != 0)
-	{
-	  memory_error (status, memaddress);
-	}
-      return (STRCMP (instr, buf));
-    }
-    return (-1);
-}
-
-
-/* get_break_addr ()
-   find address of breakpint routine
-   vec - trap vector used for breakpoints
-   addrp - store the address here	*/
-
-static void
-get_break_addr (vec, addrp)
-     int vec;
-     CORE_ADDR *addrp;
-{
-  CORE_ADDR memaddress = 0;
-  int status;
-  int k;
-  char buf[PBUFSIZ];
-  char base_addr[4];
-  char *p;
-
-  if (m68020)
-    {
-      send_with_reply ("VBR ", buf, sizeof (buf));
-      p = buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0))
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]);
-	}
-      /* base addr of exception vector table */
-      memaddress = *((CORE_ADDR *) base_addr);
-    }
-
-    memaddress += (vec + 32) * 4;     /* address of trap vector */
-    status = target_read_memory (memaddress, (char *) addrp, 4); 
-    if (status != 0)                                                   
-      {
-	memory_error (status, memaddress);
-      }
-}
-
-
-/* Kill an inferior process */
-
-static void
-es1800_kill ()
-{
-  if (inferior_pid != 0)
-    {
-      inferior_pid = 0;
-      es1800_mourn_inferior ();
-    }
-}
-
-
-/* Load a file to the ES1800 emulator. 
-   Converts the file from a.out format into Extended Tekhex format
-   before the file is loaded.
-   Also loads the trap routine, and sets the ES1800 breakpoint on it
-   filename - the a.out to be loaded
-   from_tty - says whether to be verbose or not
-   FIXME Uses emulator overlay memory for trap routine	*/
- 
-static void
-es1800_load (filename, from_tty)
-     char *filename;
-     int from_tty;
-{
-
-  FILE *instream;
-  char loadname[15];
-  char buf[160];
-  struct cleanup *old_chain;
-  int es1800_load_format = 5;
-
-  if (es1800_desc < 0) 
-    {
-      printf ("No emulator attached, type emulator-command first\n");
-      return;
-    }
-
-  filename = tilde_expand (filename);
-  make_cleanup (free, filename);
-
-  switch (es1800_load_format)
-    {
-      case 2:   /* Extended Tekhex  */
-        if (from_tty)
-	  {
-	    printf ("Converting \"%s\" to Extended Tekhex Format\n", filename);
-	  }
-	sprintf (buf, "tekhex %s", filename);
-	system (buf);
-	sprintf (loadname, "out.hex");
-	break;
-
-      case 5:   /* Motorola S-rec  */
-	if (from_tty)
-	  {
-	    printf ("Converting \"%s\" to Motorola S-record format\n",
-		    filename);
-	  }
-	/* in the future the source code in copy (part of binutils-1.93) will
-	   be included in this file */
-	sprintf (buf,
-		 "copy -s \"a.out-sunos-big\" -d \"srec\" %s /tmp/out.hex",
-		 filename);
-	system (buf);
-	sprintf (loadname, "/tmp/out.hex");
-	break;
-
-      default:
-	error ("Downloading format not defined\n");
-    }
- 
-  mark_breakpoints_out ();
-  inferior_pid = 0;
-  if (from_tty)
-    {
-      printf ("Downloading \"%s\" to the ES 1800\n",filename);
-    }
-  if ((instream = fopen (loadname, "r")) == NULL)
-    {
-      perror_with_name ("fopen:");
-    }
-
-  old_chain = make_cleanup (fclose, instream);
-  immediate_quit++;
-
-  es1800_reset (0);
-
-  download (instream, from_tty, es1800_load_format);
-
-  /* if breakpoint routine is not present anymore we have to check 
-     whether to download a new breakpoint routine or not */
-
-  if ((verify_break (es1800_break_vec) != 0)
-      && query ("No breakpoint routine in ES 1800 emulator!\nDownload a breakpoint routine to the emulator? "))
-    {
-      char buf[128];
-      printf ("Using break vector 0x%x\n", es1800_break_vec);
-      sprintf (buf, "0x%x ", es1800_break_vec);
-      printf ("Give the start address of the breakpoint routine: ");
-      fgets (buf + strlen (buf), sizeof (buf) - strlen (buf), stdin);
-      es1800_init_break (buf, 0);
-    }
-
-  do_cleanups (old_chain);
-  expect_prompt ();
-  readchar ();  /* FIXME I am getting a ^G = 7 after the prompt  */
-  printf ("\n");
-
-  if (fclose (instream) == EOF)
-    {
-      ;
-    }
-
-  if (es1800_load_format != 2)
-    {
-      sprintf (buf, "/usr/bin/rm %s", loadname);
-      system (buf);
-    }
-
-  symbol_file_command (filename, from_tty);   /* reading symbol table */
-  immediate_quit--;
-}
-
-#if 0
-
-#define NUMCPYBYTES 20
-
-static void
-bfd_copy (from_bfd, to_bfd)
-     bfd *from_bfd;
-     bfd *to_bfd;
-{
-  asection *p, *new;
-  int i;
-  char buf[NUMCPYBYTES];
-
-  for (p = from_bfd->sections; p != NULL; p = p->next)
-    {
-      printf ("  Copying section %s. Size = %x.\n", p->name, p->_cooked_size);
-      printf ("    vma = %x,  offset = %x,  output_sec = %x\n",
-	      p->vma, p->output_offset, p->output_section);
-      new = bfd_make_section (to_bfd, p->name);
-      if (p->_cooked_size &&
-	  !bfd_set_section_size (to_bfd, new, p->_cooked_size))
-	{
-	  error ("Wrong BFD size!\n");
-	}
-      if (!bfd_set_section_flags (to_bfd, new, p->flags))
-	{
-	  error ("bfd_set_section_flags");
-	}
-      new->vma = p->vma;
-      
-      for (i = 0; (i + NUMCPYBYTES) < p->_cooked_size ; i += NUMCPYBYTES)
-	{
-	  if (!bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i,
-					(bfd_size_type) NUMCPYBYTES))
-	    {
-	      error ("bfd_get_section_contents\n");
-	    }
-	if (!bfd_set_section_contents (to_bfd, new, (PTR) buf, (file_ptr) i,
-				      (bfd_size_type) NUMCPYBYTES))
-	  {
-	    error ("bfd_set_section_contents\n");
-	  }
-      }
-      bfd_get_section_contents (from_bfd, p, (PTR) buf, (file_ptr) i,
-				(bfd_size_type) (p->_cooked_size - i));
-      bfd_set_section_contents (to_bfd, new, (PTR) buf,(file_ptr) i,
-				(bfd_size_type) (p->_cooked_size - i));
-    }
-}
-
-#endif
-
-/* Start an process on the es1800 and set inferior_pid to the new
-   process' pid.
-   execfile - the file to run
-   args     - arguments passed to the program
-   env      - the environment vector to pass	*/
-
-static void
-es1800_create_inferior (execfile, args, env)
-     char *execfile;
-     char *args;
-     char **env;
-{
-  int entry_pt;
-  int pid;
-#if 0
-  struct expression *expr;
-  register struct cleanup *old_chain = 0;
-  register value val;
-#endif
-
-  if (args && *args)
-    {
-      error ("Can't pass arguments to remote ES1800 process");
-    }
-
-#if 0
-  if (query ("Use 'start' as entry point? "))
-    {
-      expr = parse_c_expression ("start");
-      old_chain = make_cleanup (free_current_contents, &expr);
-      val = evaluate_expression (expr);
-      entry_pt = (val->location).address;
-    }
-  else
-    {
-      printf ("Enter the program's entry point (in hexadecimal): ");
-      scanf ("%x", &entry_pt);
-    }
-#endif
-
-  if (execfile == 0 || exec_bfd == 0)
-    {
-      error ("No exec file specified");
-    }
-
-  entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-  pid = 42;
-
-  /* Now that we have a child process, make it our target.  */
-
-  push_target (&es1800_child_ops);
-
-  /* The "process" (board) is already stopped awaiting our commands, and
-     the program is already downloaded.  We just set its PC and go.  */
-
-  inferior_pid = pid;		/* Needed for wait_for_inferior below */
-
-  clear_proceed_status ();
-
-  /* Tell wait_for_inferior that we've started a new process.  */
-
-  init_wait_for_inferior ();
-
-  /* Set up the "saved terminal modes" of the inferior
-     based on what modes we are starting it with.  */
-
-  target_terminal_init ();
-
-  /* Install inferior's terminal modes.  */
-
-  target_terminal_inferior ();
-
-  /* remote_start (args); */
-  /* trap_expected = 0; */
-  /* insert_step_breakpoint ();  FIXME, do we need this?  */
-
-  proceed ((CORE_ADDR) entry_pt, -1, 0);		/* Let 'er rip... */
-
-}
-
-
-/* The process has died, clean up.  */
-
-static void
-es1800_mourn_inferior ()
-{
-  remove_breakpoints ();
-  unpush_target (&es1800_child_ops);
-  generic_mourn_inferior ();	/* Do all the proper things now */
-}
-
-/* ES1800-protocol specific routines */
-
-/* Keep discarding input from the remote system, until STRING is found. 
-   Let the user break out immediately. 
-   string - the string to expect
-   nowait - break out if string not the emulator's first respond otherwise
-            read until string is found (== 0)   */
- 
-static void
-expect (string, nowait)
-     char *string;
-    int nowait;
-{
-  char c;
-  char *p = string;
-
-  immediate_quit++;
-  while (1)
-    {
-      c = readchar ();
-      if (isalpha (c))
-	{
-	  c = toupper (c);
-	}
-      if (c == toupper (*p))
-	{
-	  p++;
-	  if (*p == '\0')
-	    {
-	      immediate_quit--;
-	      return;
-	    }
-	}
-      else if (!nowait)
-	{
-	  p = string;
-	}
-      else
-	{
-	  printf ("\'%s\' expected\n" , string);
-	  printf ("char %d is %d", p - string, c);
-	  error ("\n" );
-	}
-    }
-}
-
-/* Keep discarding input until we see the prompt.  */
-
-static void
-expect_prompt ()
-{
-  expect (">", 0);
-}
-
-
-/* Read one character */
-
-#ifdef DEBUG_STDIN
-
-/* read from stdin */
-
-static int
-readchar ()
-{
-  char buf[1];
-
-  buf[0] = '\0';
-  printf ("readchar, give one character\n");
-  read (0, buf, 1);
-
-#if defined (LOG_FILE)
-  putc (buf[0] & 0x7f, log_file);
-#endif
-
-  return (buf[0] & 0x7f);
-}
-
-#else	/* !DEBUG_STDIN */
-
-/* Read a character from the remote system, doing all the fancy
-   timeout stuff.  */
-
-static int
-readchar ()
-{
-  char buf[1];
-
-  buf[0] = '\0';
-
-#ifdef HAVE_TERMIO
-
-  /* termio does the timeout for us.  */
-  read (es1800_desc, buf, 1);
-
-#else
-
-  alarm (timeout);
-  while (read (es1800_desc, buf, 1) != 1)
-    {
-      if (errno == EINTR)
-	{
-	  error ("Timeout reading from remote system.");
-	}
-      else if (errno != EWOULDBLOCK)
-	{
-	  perror_with_name ("remote read");
-	}
-    }
-  alarm (0);
-#endif
-
-#if defined (LOG_FILE)
-  putc (buf[0] & 0x7f, log_file);
-  fflush (log_file);
-#endif
-
-  return (buf[0] & 0x7f);
-}
-
-#endif	/* DEBUG_STDIN */
-
-
-/* Send a command to the emulator and save the reply.
-   Report an error if we get an error reply.
-   string - the es1800 command
-   buf    - containing the emulator reply on return
-   len    - size of buf  */
-
-static void
-send_with_reply (string, buf, len)
-    char *string, *buf;
-    int len;
-{
-  send (string);
-  write (es1800_desc, "\r", 1);
-
-#ifndef DEBUG_STDIN
-  expect (string, 1);
-  expect ("\r\n", 0);
-#endif
-
-  getmessage (buf, len);
-}
-
-
-/* Send the command in STR to the emulator adding \r. check
-   the echo for consistency. 
-   string - the es1800 command  */
- 
-static void
-send_command (string)
-     char *string;
-{
-  send (string);
-  write (es1800_desc, "\r", 1);
-
-#ifndef DEBUG_STDIN
-  expect (string, 0);
-  expect_prompt ();
-#endif
-
-}
-
-/* Send a string
-   string - the es1800 command  */
-
-static void
-send (string)
-     char *string;
-{
-  if (kiodebug) 
-    {
-      fprintf (stderr, "Sending: %s\n", string);
-    }
-  write (es1800_desc, string, strlen (string));
-}
-
-
-/* Read a message from the emulator and store it in BUF. 
-   buf    - containing the emulator reply on return
-   len    - size of buf  */
- 
-static void
-getmessage (buf, len)
-     char *buf;
-     int len;
-{
-  char *bp;
-  int c;
-  int prompt_found = 0;
-  extern kiodebug;
-
-#if defined (LOG_FILE)
-  /* This is a convenient place to do this.  The idea is to do it often
-     enough that we never lose much data if we terminate abnormally.  */
-  fflush (log_file);
-#endif
-
-  bp = buf;
-  c = readchar ();
-  do
-    {
-      if (c) 
-	{
-	  if (len-- < 2) /* char and terminaling NULL */
-	    {
-	      error ("input buffer overrun\n");
-	    }
-	  *bp++ = c;
-	}
-      c = readchar ();
-      if ((c == '>') && (*(bp - 1) == ' '))
-	{
-	  prompt_found = 1;
-	}
-    }
-  while (!prompt_found);
-  *bp = 0;
-  
-  if (kiodebug)
-    {
-      fprintf (stderr,"message received :%s\n", buf);
-    }
-}
-
-static void
-download (instream, from_tty, format)
-FILE *instream;
-     int from_tty;
-     int format;
-{
-  char c;
-  char buf[160];
-  int i = 0;
-
-  send_command ("SET #2,$1A");                  /* reset char = ^Z */
-  send_command ("SET #3,$11,$13");              /* XON  XOFF */
-  if (format == 2)
-    {
-      send_command ("SET #26,#2");
-    }
-  else
-    {
-      send_command ("SET #26,#5");		/* Format=Extended Tekhex */
-    }
-  send_command ("DFB = $10");
-  send_command ("PUR");
-  send_command ("CES");
-  send ("DNL\r");
-  expect ("DNL", 1);
-  if (from_tty)
-    {
-      printf ("    0 records loaded...\r");
-    }
-  while (fgets (buf, 160, instream))
-      {
-	send (buf);
-	if (from_tty)
-	  {
-	    printf ("%5d\b\b\b\b\b",++i);
-	    fflush (stdout);
-	  }
-	if ((c = readchar ()) != 006) 
-	  {
-	    error ("expected ACK");
-	  }
-      }
-  if (from_tty)
-    {
-      printf ("- All");
-    }
-}
-
-/* Additional commands */
-
-/* Talk directly to the emulator
-   FIXME, uses busy wait, and is SUNOS (or at least BSD) specific  */
-
-/*ARGSUSED*/
-static void 
-es1800_transparent (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  int console;
-  struct sgttyb modebl;
-  int fcflag;
-  int cc;
-  struct sgttyb console_mode_save;
-  int console_fc_save;
-  int es1800_fc_save;
-  int inputcnt = 80;
-  char inputbuf[80];
-  int consolecnt = 0;
-  char consolebuf[80];
-  int es1800_cnt = 0;
-  char es1800_buf[80];
-  int i;
-
-  dont_repeat ();
-  if (es1800_desc < 0) 
-    {
-      printf ("No emulator attached, type emulator-command first\n");
-      return;
-    }
-
-  printf ("\n");
-  printf ("You are now communicating directly with the ES 1800 emulator.\n");
-  printf ("To leave this mode (transparent mode), press ^E.\n");
-  printf ("\n");
-  printf (" >");
-  fflush (stdout);
-
-  if ((console = open ("/dev/tty", O_RDWR)) == -1) 
-    {
-      perror_with_name ("/dev/tty:");
-    }
-
-  if ((fcflag = fcntl (console, F_GETFL, 0)) == -1)
-    {
-      perror_with_name ("fcntl console");
-    }
-
-  console_fc_save = fcflag;
-  fcflag = fcflag | FNDELAY;
-
-  if (fcntl (console, F_SETFL, fcflag) == -1)
-    {
-      perror_with_name ("fcntl console");
-    }
-
-  if (ioctl (console, TIOCGETP, &modebl))
-    {
-      perror_with_name ("ioctl console");
-    }
-
-  console_mode_save = modebl;
-  modebl.sg_flags = RAW; 
-
-  if (ioctl (console, TIOCSETP, &modebl))
-    {
-      perror_with_name ("ioctl console");
-    }
-
-  if ((fcflag = fcntl (es1800_desc, F_GETFL, 0)) == -1)
-    {
-      perror_with_name ("fcntl serial");
-    }
-
-  es1800_fc_save = fcflag;
-  fcflag = fcflag | FNDELAY;
-
-  if (fcntl (es1800_desc, F_SETFL, fcflag) == -1)
-    {
-      perror_with_name ("fcntl serial");
-    }
-
-  while (1)
-    { 
-      cc = read (console, inputbuf, inputcnt);
-      if (cc != -1)
-	{
-	  if ((*inputbuf & 0x7f) == 0x05)
-	    {
-	      break;
-	    }
-	  for (i = 0; i < cc; )
-	    {
-	      es1800_buf[es1800_cnt++] = inputbuf[i++];
-	    }
-	  if ((cc = write (es1800_desc, es1800_buf, es1800_cnt)) == -1)
-	    {
-	      perror_with_name ("FEL! read:");
-	    }
-	  es1800_cnt -= cc;
-	  if (es1800_cnt && cc) 
-	    {
-	      for (i = 0; i < es1800_cnt; i++)
-		{
-		  es1800_buf[i] = es1800_buf[cc+i];
-		}
-	    }
-	}
-      else if (errno != EWOULDBLOCK)
-	{
-	  perror_with_name ("FEL! read:");
-	}
-      
-      cc = read (es1800_desc,inputbuf,inputcnt);
-      if (cc != -1)
-	{
-	  for (i = 0; i < cc; )
-	    {
-	      consolebuf[consolecnt++] = inputbuf[i++];
-	    }
-	  if ((cc = write (console,consolebuf,consolecnt)) == -1)
-	    {
-	      perror_with_name ("FEL! write:");
-	    }
-	  consolecnt -= cc;
-	  if (consolecnt && cc) 
-	    {
-	      for (i = 0; i < consolecnt; i++)
-		{
-		  consolebuf[i] = consolebuf[cc+i];
-		}
-	    }
-	}
-      else if (errno != EWOULDBLOCK)
-	{
-	  perror_with_name ("FEL! read:");
-	}
-    }
-
-  console_fc_save = console_fc_save & !FNDELAY;
-  if (fcntl (console, F_SETFL, console_fc_save) == -1)
-    {
-      perror_with_name ("FEL! fcntl");
-    }
-
-  if (ioctl (console, TIOCSETP, &console_mode_save))
-    {
-      perror_with_name ("FEL! ioctl");
-    }
-
-  close (console);
-
-  if (fcntl (es1800_desc, F_SETFL, es1800_fc_save) == -1)
-    {
-      perror_with_name ("FEL! fcntl");
-    }
-
-  printf ("\n");
-
-}
-
-static void
-es1800_init_break (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  CORE_ADDR memaddress = 0;
-  char buf[PBUFSIZ];
-  char base_addr[4];
-  char *space_index;
-  char *p;
-  int k;
-
-  if (args == NULL)
-    {
-      error_no_arg ("a trap vector");
-    }
-
-  if (!(space_index = strchr (args, ' ')))
-    {
-      error ("Two arguments needed (trap vector and address of break routine).\n");
-    }
-
-  *space_index = '\0';
-
-  es1800_break_vec = strtol (args, (char **) NULL, 0);
-  es1800_break_address = parse_and_eval_address (space_index + 1);
-
-  es1800_create_break_insn (es1800_break_insn, es1800_break_vec);
-
-  if (m68020)
-    {
-      send_with_reply ("VBR ", buf, sizeof (buf));
-      p = buf;
-      for (k = 0; k < 4; k++)
-	{
-	  if ((p[k*2 + 1] == 0) || (p[k*2 + 2] == 0))
-	    {
-	      error ("Emulator reply is too short: %s", buf);
-	    }
-	  base_addr[k] = (fromhex (p[k*2 + 1]) * 16) + fromhex (p[k*2 + 2]);
-	}
-      /* base addr of exception vector table */
-      memaddress =  *((CORE_ADDR *) base_addr);
-    }
-
-  memaddress += (es1800_break_vec + 32) * 4;     /* address of trap vector */
-
-  sprintf (buf, "@.L%lx=$%lx", memaddress, es1800_break_address);
-  send_command (buf);   /* set the address of the break routine in the */
-  		       /* trap vector */
-  
-  sprintf (buf, "@.L%lx=$4E714E71", es1800_break_address);      /* NOP; NOP */
-  send_command (buf);
-  sprintf (buf, "@.L%lx=$4E714E73", es1800_break_address + 4);  /* NOP; RTE */
-  send_command (buf);
-  
-  sprintf (buf, "AC2=$%lx", es1800_break_address + 4);
-  /* breakpoint at es1800-break_address */
-  send_command (buf);
-  send_command ("WHEN AC2 THEN BRK");          /* ie in exception routine */
-
-  if (from_tty)
-    {
-      printf ("Breakpoint (trap $%x) routine at address: %lx\n",
-	      es1800_break_vec, es1800_break_address);
-    }
-}	  
-
-static void
-es1800_child_open (arg, from_tty)
-     char *arg;
-     int from_tty;
-{
-  error ("Use the \"run\" command to start a child process.");
-}
-
-static void
-es1800_child_detach (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  if (args)
-    {
-      error ("Argument given to \"detach\" when remotely debugging.");
-    }
-  
-  pop_target ();
-  if (from_tty)
-    {
-      printf ("Ending debugging the process %d.\n", inferior_pid);
-    }
-}
-
-
-/* Define the target subroutine names  */
-
-static struct target_ops es1800_ops =
-{
-  "es1800",			/* to_shortname */
-				/* to_longname */
-  "Remote serial target in ES1800-emulator protocol",
-  				/* to_doc */
-  "Remote debugging on the es1800 emulator via a serial line.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
-  es1800_open,			/* to_open */
-  es1800_close,			/* to_close */
-  es1800_attach,		/* to_attach */
-  es1800_detach,		/* to_detach */
-  es1800_resume,		/* to_resume */
-  NULL,				/* to_wait */
-  NULL,				/* to_fetch_registers */
-  NULL,				/* to_store_registers */
-  es1800_prepare_to_store,	/* to_prepare_to_store */
-  es1800_xfer_inferior_memory,	/* to_xfer_memory */
-  es1800_files_info,		/* to_files_info */
-  es1800_insert_breakpoint,	/* to_insert_breakpoint */
-  es1800_remove_breakpoint,	/* to_remove_breakpoint */
-  NULL,				/* to_terminal_init */
-  NULL,				/* to_terminal_inferior */
-  NULL,				/* to_terminal_ours_for_output */
-  NULL,				/* to_terminal_ours */
-  NULL,				/* to_terminal_info */
-  NULL,				/* to_kill */
-  es1800_load,			/* to_load */
-  NULL,				/* to_lookup_symbol */
-  es1800_create_inferior,	/* to_create_inferior */
-  NULL,				/* to_mourn_inferior */
-  0,				/* to_can_run */
-  0,				/* notice_signals */
-  core_stratum,			/* to_stratum */
-  0,				/* to_next */
-  0,				/* to_has_all_memory */
-  1,				/* to_has_memory */
-  0,				/* to_has_stack */
-  0,				/* to_has_registers */
-  0,				/* to_has_execution */
-  NULL,				/* to_sections */
-  NULL,				/* to_sections_end */
-  OPS_MAGIC			/* to_magic (always last) */
-};
-
-/* Define the target subroutine names  */
-
-static struct target_ops es1800_child_ops =
-{
-  "es1800_process",		/* to_shortname */
-  				/* to_longname */
-  "Remote serial target in ES1800-emulator protocol",
-				/* to_doc */
-  "Remote debugging on the es1800 emulator via a serial line.\n\
-Specify the serial device it is connected to (e.g. /dev/ttya).",
-  es1800_child_open,		/* to_open */
-  NULL,				/* to_close */
-  es1800_attach,		/* to_attach */
-  es1800_child_detach,		/* to_detach */
-  es1800_resume,		/* to_resume */
-  es1800_wait,			/* to_wait */
-  es1800_fetch_register,	/* to_fetch_registers */
-  es1800_store_register,	/* to_store_registers */
-  es1800_prepare_to_store,	/* to_prepare_to_store */
-  es1800_xfer_inferior_memory,	/* to_xfer_memory */
-  es1800_files_info,		/* to_files_info */
-  es1800_insert_breakpoint,	/* to_insert_breakpoint */
-  es1800_remove_breakpoint,	/* to_remove_breakpoint */
-  NULL,				/* to_terminal_init */
-  NULL,				/* to_terminal_inferior */
-  NULL,				/* to_terminal_ours_for_output */
-  NULL,				/* to_terminal_ours */
-  NULL,				/* to_terminal_info */
-  es1800_kill,			/* to_kill */
-  es1800_load,			/* to_load */
-  NULL,				/* to_lookup_symbol */
-  es1800_create_inferior,	/* to_create_inferior */
-  es1800_mourn_inferior,	/* to_mourn_inferior */
-  0,				/* to_can_run */
-  0,				/* notice_signals */
-  process_stratum,		/* to_stratum */
-  0,				/* to_next */
-  1,				/* to_has_all_memory */
-  1,				/* to_has_memory */
-  1,				/* to_has_stack */
-  1,				/* to_has_registers */
-  1,				/* to_has_execution */
-  NULL,				/* to_sections */
-  NULL,				/* to_sections_end */
-  OPS_MAGIC			/* to_magic (always last) */
-};
-
-/* _initialize_es1800 ()  */
-
-void
-_initialize_es1800 ()
-{
-  add_target (&es1800_ops);
-  add_target (&es1800_child_ops);
-  add_com ("transparent", class_support, es1800_transparent,
-	   "Start transparent communication with the ES 1800 emulator.");
-  add_com ("init_break", class_support, es1800_init_break,
-	   "Download break routine and initialize break facility on ES 1800");
-}
diff --git a/gdb/remote-st2000.c b/gdb/remote-st2000.c
index 833aa20..e69de29 100644
--- a/gdb/remote-st2000.c
+++ b/gdb/remote-st2000.c
@@ -1,833 +0,0 @@
-/* Remote debugging interface for Tandem ST2000 phone switch, for GDB.
-   Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
-   Contributed by Cygnus Support.  Written by Jim Kingdon for Cygnus.
-
-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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
-
-/* This file was derived from remote-eb.c, which did a similar job, but for
-   an AMD-29K running EBMON.  That file was in turn derived from remote.c
-   as mentioned in the following comment (left in for comic relief):
-
-  "This is like remote.c but is for an esoteric situation--
-   having an a29k board in a PC hooked up to a unix machine with
-   a serial line, and running ctty com1 on the PC, through which
-   the unix machine can run ebmon.  Not to mention that the PC
-   has PC/NFS, so it can access the same executables that gdb can,
-   over the net in real time."
-
-   In reality, this module talks to a debug monitor called 'STDEBUG', which
-   runs in a phone switch.  We communicate with STDEBUG via either a direct
-   serial line, or a TCP (or possibly TELNET) stream to a terminal multiplexor,
-   which in turn talks to the phone switch. */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "target.h"
-#include "wait.h"
-#include <varargs.h>
-#include <signal.h>
-#include <string.h>
-#include <sys/types.h>
-#include "serial.h"
-
-extern struct target_ops st2000_ops;		/* Forward declaration */
-
-static void st2000_close();
-static void st2000_fetch_register();
-static void st2000_store_register();
-
-#define LOG_FILE "st2000.log"
-#if defined (LOG_FILE)
-FILE *log_file;
-#endif
-
-static int timeout = 24;
-
-/* Descriptor for I/O to remote machine.  Initialize it to -1 so that
-   st2000_open knows that we don't have a file open when the program
-   starts.  */
-
-static serial_t st2000_desc;
-
-/* Send data to stdebug.  Works just like printf. */
-
-static void
-printf_stdebug(va_alist)
-     va_dcl
-{
-  va_list args;
-  char *pattern;
-  char buf[200];
-
-  va_start(args);
-
-  pattern = va_arg(args, char *);
-
-  vsprintf(buf, pattern, args);
-  if (SERIAL_WRITE(st2000_desc, buf, strlen(buf)))
-    fprintf(stderr, "SERIAL_WRITE failed: %s\n", safe_strerror(errno));
-}
-
-/* Read a character from the remote system, doing all the fancy timeout
-   stuff.  */
-
-static int
-readchar(timeout)
-     int timeout;
-{
-  int c;
-
-  c = SERIAL_READCHAR(st2000_desc, timeout);
-
-#ifdef LOG_FILE
-  putc(c & 0x7f, log_file);
-#endif
-
-  if (c >= 0)
-    return c & 0x7f;
-
-  if (c == SERIAL_TIMEOUT)
-    {
-      if (timeout == 0)
-	return c;		/* Polls shouldn't generate timeout errors */
-
-      error("Timeout reading from remote system.");
-    }
-
-  perror_with_name("remote-st2000");
-}
-
-/* Scan input from the remote system, until STRING is found.  If DISCARD is
-   non-zero, then discard non-matching input, else print it out.
-   Let the user break out immediately.  */
-static void
-expect(string, discard)
-     char *string;
-     int discard;
-{
-  char *p = string;
-  int c;
-
-  immediate_quit = 1;
-  while (1)
-    {
-      c = readchar(timeout);
-      if (c == *p++)
-	{
-	  if (*p == '\0')
-	    {
-	      immediate_quit = 0;
-	      return;
-	    }
-	}
-      else
-	{
-	  if (!discard)
-	    {
-	      fwrite(string, 1, (p - 1) - string, stdout);
-	      putchar((char)c);
-	      fflush(stdout);
-	    }
-	  p = string;
-	}
-    }
-}
-
-/* Keep discarding input until we see the STDEBUG prompt.
-
-   The convention for dealing with the prompt is that you
-   o give your command
-   o *then* wait for the prompt.
-
-   Thus the last thing that a procedure does with the serial line
-   will be an expect_prompt().  Exception:  st2000_resume does not
-   wait for the prompt, because the terminal is being handed over
-   to the inferior.  However, the next thing which happens after that
-   is a st2000_wait which does wait for the prompt.
-   Note that this includes abnormal exit, e.g. error().  This is
-   necessary to prevent getting into states from which we can't
-   recover.  */
-static void
-expect_prompt(discard)
-     int discard;
-{
-#if defined (LOG_FILE)
-  /* This is a convenient place to do this.  The idea is to do it often
-     enough that we never lose much data if we terminate abnormally.  */
-  fflush(log_file);
-#endif
-  expect ("dbug> ", discard);
-}
-
-/* Get a hex digit from the remote system & return its value.
-   If ignore_space is nonzero, ignore spaces (not newline, tab, etc).  */
-static int
-get_hex_digit(ignore_space)
-     int ignore_space;
-{
-  int ch;
-  while (1)
-    {
-      ch = readchar(timeout);
-      if (ch >= '0' && ch <= '9')
-	return ch - '0';
-      else if (ch >= 'A' && ch <= 'F')
-	return ch - 'A' + 10;
-      else if (ch >= 'a' && ch <= 'f')
-	return ch - 'a' + 10;
-      else if (ch == ' ' && ignore_space)
-	;
-      else
-	{
-	  expect_prompt(1);
-	  error("Invalid hex digit from remote system.");
-	}
-    }
-}
-
-/* Get a byte from stdebug and put it in *BYT.  Accept any number
-   leading spaces.  */
-static void
-get_hex_byte (byt)
-     char *byt;
-{
-  int val;
-
-  val = get_hex_digit (1) << 4;
-  val |= get_hex_digit (0);
-  *byt = val;
-}
-
-/* Get N 32-bit words from remote, each preceded by a space,
-   and put them in registers starting at REGNO.  */
-static void
-get_hex_regs (n, regno)
-     int n;
-     int regno;
-{
-  long val;
-  int i;
-
-  for (i = 0; i < n; i++)
-    {
-      int j;
-      
-      val = 0;
-      for (j = 0; j < 8; j++)
-	val = (val << 4) + get_hex_digit (j == 0);
-      supply_register (regno++, (char *) &val);
-    }
-}
-
-/* This is called not only when we first attach, but also when the
-   user types "run" after having attached.  */
-static void
-st2000_create_inferior (execfile, args, env)
-     char *execfile;
-     char *args;
-     char **env;
-{
-  int entry_pt;
-
-  if (args && *args)
-    error("Can't pass arguments to remote STDEBUG process");
-
-  if (execfile == 0 || exec_bfd == 0)
-    error("No exec file specified");
-
-  entry_pt = (int) bfd_get_start_address (exec_bfd);
-
-#ifdef CREATE_INFERIOR_HOOK
-  CREATE_INFERIOR_HOOK (0);		/* No process-ID */
-#endif  
-
-/* The "process" (board) is already stopped awaiting our commands, and
-   the program is already downloaded.  We just set its PC and go.  */
-
-  clear_proceed_status ();
-
-  /* Tell wait_for_inferior that we've started a new process.  */
-  init_wait_for_inferior ();
-
-  /* Set up the "saved terminal modes" of the inferior
-     based on what modes we are starting it with.  */
-  target_terminal_init ();
-
-  /* Install inferior's terminal modes.  */
-  target_terminal_inferior ();
-
-  /* insert_step_breakpoint ();  FIXME, do we need this?  */
-  proceed ((CORE_ADDR)entry_pt, -1, 0);		/* Let 'er rip... */
-}
-
-/* Open a connection to a remote debugger.
-   NAME is the filename used for communication.  */
-
-static int baudrate = 9600;
-static char dev_name[100];
-
-static void
-st2000_open(args, from_tty)
-     char *args;
-     int from_tty;
-{
-  int n;
-  char junk[100];
-
-  target_preopen(from_tty);
-  
-  n = sscanf(args, " %s %d %s", dev_name, &baudrate, junk);
-
-  if (n != 2)
-    error("Bad arguments.  Usage: target st2000 <device> <speed>\n\
-or target st2000 <host> <port>\n");
-
-  st2000_close(0);
-
-  st2000_desc = SERIAL_OPEN(dev_name);
-
-  if (!st2000_desc)
-    perror_with_name(dev_name);
-
-  SERIAL_SETBAUDRATE(st2000_desc, baudrate);
-
-  SERIAL_RAW(st2000_desc);
-
-  push_target(&st2000_ops);
-
-#if defined (LOG_FILE)
-  log_file = fopen (LOG_FILE, "w");
-  if (log_file == NULL)
-    perror_with_name (LOG_FILE);
-#endif
-
-  /* Hello?  Are you there?  */
-  printf_stdebug("\003");	/* ^C wakes up dbug */
-  
-  expect_prompt(1);
-
-  if (from_tty)
-    printf("Remote %s connected to %s\n", target_shortname,
-	   dev_name);
-}
-
-/* Close out all files and local state before this target loses control. */
-
-static void
-st2000_close (quitting)
-     int quitting;
-{
-  SERIAL_CLOSE(st2000_desc);
-
-#if defined (LOG_FILE)
-  if (log_file) {
-    if (ferror(log_file))
-      fprintf(stderr, "Error writing log file.\n");
-    if (fclose(log_file) != 0)
-      fprintf(stderr, "Error closing log file.\n");
-  }
-#endif
-}
-
-/* Terminate the open connection to the remote debugger.
-   Use this when you want to detach and do something else
-   with your gdb.  */
-static void
-st2000_detach (from_tty)
-     int from_tty;
-{
-  pop_target();		/* calls st2000_close to do the real work */
-  if (from_tty)
-    printf ("Ending remote %s debugging\n", target_shortname);
-}
- 
-/* Tell the remote machine to resume.  */
-
-static void
-st2000_resume (step, sig)
-     int step, sig;
-{
-  if (step)
-    {
-      printf_stdebug ("ST\r");
-      /* Wait for the echo.  */
-      expect ("ST\r", 1);
-    }
-  else
-    {
-      printf_stdebug ("GO\r");
-      /* Swallow the echo.  */
-      expect ("GO\r", 1);
-    }
-}
-
-/* Wait until the remote machine stops, then return,
-   storing status in STATUS just as `wait' would.  */
-
-static int
-st2000_wait (status)
-     WAITTYPE *status;
-{
-  int old_timeout = timeout;
-
-  WSETEXIT ((*status), 0);
-
-  timeout = 0;		/* Don't time out -- user program is running. */
-
-  expect_prompt(0);    /* Wait for prompt, outputting extraneous text */
-
-  WSETSTOP ((*status), SIGTRAP);
-
-  timeout = old_timeout;
-
-  return 0;
-}
-
-/* Return the name of register number REGNO in the form input and output by
-   STDEBUG.  Currently, REGISTER_NAMES just happens to contain exactly what
-   STDEBUG wants.  Lets take advantage of that just as long as possible! */
-
-static char *
-get_reg_name (regno)
-     int regno;
-{
-  static char buf[50];
-  const char *p;
-  char *b;
-
-  b = buf;
-
-  for (p = reg_names[regno]; *p; p++)
-    *b++ = toupper(*p);
-  *b = '\000';
-
-  return buf;
-}
-
-/* Read the remote registers into the block REGS.  */
-
-static void
-st2000_fetch_registers ()
-{
-  int regno;
-
-  /* Yeah yeah, I know this is horribly inefficient.  But it isn't done
-     very often...  I'll clean it up later.  */
-
-  for (regno = 0; regno <= PC_REGNUM; regno++)
-    st2000_fetch_register(regno);
-}
-
-/* Fetch register REGNO, or all registers if REGNO is -1.
-   Returns errno value.  */
-static void
-st2000_fetch_register (regno)
-     int regno;
-{
-  if (regno == -1)
-    st2000_fetch_registers ();
-  else
-    {
-      char *name = get_reg_name (regno);
-      printf_stdebug ("DR %s\r", name);
-      expect (name, 1);
-      expect (" : ", 1);
-      get_hex_regs (1, regno);
-      expect_prompt (1);
-    }
-  return;
-}
-
-/* Store the remote registers from the contents of the block REGS.  */
-
-static void
-st2000_store_registers ()
-{
-  int regno;
-
-  for (regno = 0; regno <= PC_REGNUM; regno++)
-    st2000_store_register(regno);
-
-  registers_changed ();
-}
-
-/* Store register REGNO, or all if REGNO == 0.
-   Return errno value.  */
-static void
-st2000_store_register (regno)
-     int regno;
-{
-  if (regno == -1)
-    st2000_store_registers ();
-  else
-    {
-      printf_stdebug ("PR %s %x\r", get_reg_name (regno),
-		      read_register (regno));
-
-      expect_prompt (1);
-    }
-}
-
-/* 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
-st2000_prepare_to_store ()
-{
-  /* Do nothing, since we can store individual regs */
-}
-
-static void
-st2000_files_info ()
-{
-  printf ("\tAttached to %s at %d baud.\n",
-	  dev_name, baudrate);
-}
-
-/* Copy LEN bytes of data from debugger memory at MYADDR
-   to inferior's memory at MEMADDR.  Returns length moved.  */
-static int
-st2000_write_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     unsigned char *myaddr;
-     int len;
-{
-  int i;
-
-  for (i = 0; i < len; i++)
-    {
-      printf_stdebug ("PM.B %x %x\r", memaddr + i, myaddr[i]);
-      expect_prompt (1);
-    }
-  return len;
-}
-
-/* Read LEN bytes from inferior memory at MEMADDR.  Put the result
-   at debugger address MYADDR.  Returns length moved.  */
-static int
-st2000_read_inferior_memory(memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-{
-  int i;
-
-  /* Number of bytes read so far.  */
-  int count;
-
-  /* Starting address of this pass.  */
-  unsigned long startaddr;
-
-  /* Number of bytes to read in this pass.  */
-  int len_this_pass;
-
-  /* Note that this code works correctly if startaddr is just less
-     than UINT_MAX (well, really CORE_ADDR_MAX if there was such a
-     thing).  That is, something like
-     st2000_read_bytes (CORE_ADDR_MAX - 4, foo, 4)
-     works--it never adds len to memaddr and gets 0.  */
-  /* However, something like
-     st2000_read_bytes (CORE_ADDR_MAX - 3, foo, 4)
-     doesn't need to work.  Detect it and give up if there's an attempt
-     to do that.  */
-  if (((memaddr - 1) + len) < memaddr) {
-    errno = EIO;
-    return 0;
-  }
-  
-  startaddr = memaddr;
-  count = 0;
-  while (count < len)
-    {
-      len_this_pass = 16;
-      if ((startaddr % 16) != 0)
-	len_this_pass -= startaddr % 16;
-      if (len_this_pass > (len - count))
-	len_this_pass = (len - count);
-
-      printf_stdebug ("DI.L %x %x\r", startaddr, len_this_pass);
-      expect (":  ", 1);
-
-      for (i = 0; i < len_this_pass; i++)
-	get_hex_byte (&myaddr[count++]);
-
-      expect_prompt (1);
-
-      startaddr += len_this_pass;
-    }
-  return len;
-}
-
-/* FIXME-someday!  Merge these two.  */
-static int
-st2000_xfer_inferior_memory (memaddr, myaddr, len, write, target)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
-     int write;
-     struct target_ops *target;		/* ignored */
-{
-  if (write)
-    return st2000_write_inferior_memory (memaddr, myaddr, len);
-  else
-    return st2000_read_inferior_memory (memaddr, myaddr, len);
-}
-
-static void
-st2000_kill (args, from_tty)
-     char *args;
-     int from_tty;
-{
-  return;		/* Ignore attempts to kill target system */
-}
-
-/* Clean up when a program exits.
-
-   The program actually lives on in the remote processor's RAM, and may be
-   run again without a download.  Don't leave it full of breakpoint
-   instructions.  */
-
-static void
-st2000_mourn_inferior ()
-{
-  remove_breakpoints ();
-  unpush_target (&st2000_ops);
-  generic_mourn_inferior ();	/* Do all the proper things now */
-}
-
-#define MAX_STDEBUG_BREAKPOINTS 16
-
-extern int memory_breakpoint_size;
-static CORE_ADDR breakaddr[MAX_STDEBUG_BREAKPOINTS] = {0};
-
-static int
-st2000_insert_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-
-  for (i = 0; i <= MAX_STDEBUG_BREAKPOINTS; i++)
-    if (breakaddr[i] == 0)
-      {
-	breakaddr[i] = addr;
-
-	st2000_read_inferior_memory(addr, shadow, memory_breakpoint_size);
-	printf_stdebug("BR %x H\r", addr);
-	expect_prompt(1);
-	return 0;
-      }
-
-  fprintf(stderr, "Too many breakpoints (> 16) for STDBUG\n");
-  return 1;
-}
-
-static int
-st2000_remove_breakpoint (addr, shadow)
-     CORE_ADDR addr;
-     char *shadow;
-{
-  int i;
-
-  for (i = 0; i < MAX_STDEBUG_BREAKPOINTS; i++)
-    if (breakaddr[i] == addr)
-      {
-	breakaddr[i] = 0;
-
-	printf_stdebug("CB %d\r", i);
-	expect_prompt(1);
-	return 0;
-      }
-
-  fprintf(stderr, "Can't find breakpoint associated with 0x%x\n", addr);
-  return 1;
-}
-
-
-/* Put a command string, in args, out to STDBUG.  Output from STDBUG is placed
-   on the users terminal until the prompt is seen. */
-
-static void
-st2000_command (args, fromtty)
-     char	*args;
-     int	fromtty;
-{
-  if (!st2000_desc)
-    error("st2000 target not open.");
-  
-  if (!args)
-    error("Missing command.");
-	
-  printf_stdebug("%s\r", args);
-  expect_prompt(0);
-}
-
-/* Connect the user directly to STDBUG.  This command acts just like the
-   'cu' or 'tip' command.  Use <CR>~. or <CR>~^D to break out.  */
-
-/*static struct ttystate ttystate;*/
-
-static void
-cleanup_tty()
-{
-  printf("\r\n[Exiting connect mode]\r\n");
-/*  SERIAL_RESTORE(0, &ttystate);*/
-}
-
-#if 0
-/* This all should now be in serial.c */
-
-static void
-connect_command (args, fromtty)
-     char	*args;
-     int	fromtty;
-{
-  fd_set readfds;
-  int numfds;
-  int c;
-  char cur_esc = 0;
-
-  dont_repeat();
-
-  if (st2000_desc < 0)
-    error("st2000 target not open.");
-  
-  if (args)
-    fprintf("This command takes no args.  They have been ignored.\n");
-	
-  printf("[Entering connect mode.  Use ~. or ~^D to escape]\n");
-
-  serial_raw(0, &ttystate);
-
-  make_cleanup(cleanup_tty, 0);
-
-  FD_ZERO(&readfds);
-
-  while (1)
-    {
-      do
-	{
-	  FD_SET(0, &readfds);
-	  FD_SET(st2000_desc, &readfds);
-	  numfds = select(sizeof(readfds)*8, &readfds, 0, 0, 0);
-	}
-      while (numfds == 0);
-
-      if (numfds < 0)
-	perror_with_name("select");
-
-      if (FD_ISSET(0, &readfds))
-	{			/* tty input, send to stdebug */
-	  c = getchar();
-	  if (c < 0)
-	    perror_with_name("connect");
-
-	  printf_stdebug("%c", c);
-	  switch (cur_esc)
-	    {
-	    case 0:
-	      if (c == '\r')
-		cur_esc = c;
-	      break;
-	    case '\r':
-	      if (c == '~')
-		cur_esc = c;
-	      else
-		cur_esc = 0;
-	      break;
-	    case '~':
-	      if (c == '.' || c == '\004')
-		return;
-	      else
-		cur_esc = 0;
-	    }
-	}
-
-      if (FD_ISSET(st2000_desc, &readfds))
-	{
-	  while (1)
-	    {
-	      c = readchar(0);
-	      if (c < 0)
-		break;
-	      putchar(c);
-	    }
-	  fflush(stdout);
-	}
-    }
-}
-#endif /* 0 */
-
-/* Define the target subroutine names */
-
-struct target_ops st2000_ops = {
-  "st2000",
-  "Remote serial Tandem ST2000 target",
-  "Use a remote computer running STDEBUG connected by a serial line,\n\
-or a network connection.\n\
-Arguments are the name of the device for the serial line,\n\
-the speed to connect at in bits per second.",
-  st2000_open,
-  st2000_close, 
-  0,
-  st2000_detach,
-  st2000_resume,
-  st2000_wait,
-  st2000_fetch_register,
-  st2000_store_register,
-  st2000_prepare_to_store,
-  st2000_xfer_inferior_memory,
-  st2000_files_info,
-  st2000_insert_breakpoint,
-  st2000_remove_breakpoint,	/* Breakpoints */
-  0,
-  0,
-  0,
-  0,
-  0,				/* Terminal handling */
-  st2000_kill,
-  0,				/* load */
-  0,				/* lookup_symbol */
-  st2000_create_inferior,
-  st2000_mourn_inferior,
-  0,				/* can_run */
-  0, 				/* notice_signals */
-  process_stratum,
-  0,				/* next */
-  1,
-  1,
-  1,
-  1,
-  1,				/* all mem, mem, stack, regs, exec */
-  0,
-  0,				/* Section pointers */
-  OPS_MAGIC,			/* Always the last thing */
-};
-
-void
-_initialize_remote_st2000 ()
-{
-  add_target (&st2000_ops);
-  add_com ("st2000 <command>", class_obscure, st2000_command,
-	   "Send a command to the STDBUG monitor.");
-  add_com ("connect", class_obscure, connect_command,
-	   "Connect the terminal directly up to the STDBUG command monitor.\n\
-Use <CR>~. or <CR>~^D to break out.");
-}