/* Remote target glue for the Intel 960 MON960 ROM monitor.
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/* Remote target glue for the Intel 960 MON960 ROM monitor.
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Copyright 1995, 1996 Free Software Foundation, Inc.
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Copyright 1995, 1996 Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "defs.h"
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#include "gdbcore.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "target.h"
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#include "monitor.h"
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#include "monitor.h"
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#include "serial.h"
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#include "serial.h"
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#include "srec.h"
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#include "srec.h"
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#include "xmodem.h"
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#include "xmodem.h"
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#include "symtab.h"
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#include "symtab.h"
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#include "symfile.h" /* for generic_load */
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#include "symfile.h" /* for generic_load */
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#include "inferior.h" /* for write_pc() */
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#include "inferior.h" /* for write_pc() */
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#define USE_GENERIC_LOAD
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#define USE_GENERIC_LOAD
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static struct target_ops mon960_ops;
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static struct target_ops mon960_ops;
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static void mon960_open PARAMS ((char *args, int from_tty));
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static void mon960_open PARAMS ((char *args, int from_tty));
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#ifdef USE_GENERIC_LOAD
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#ifdef USE_GENERIC_LOAD
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static void
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static void
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mon960_load_gen (filename, from_tty)
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mon960_load_gen (filename, from_tty)
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char *filename;
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char *filename;
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int from_tty;
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int from_tty;
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{
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{
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extern int inferior_pid;
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extern int inferior_pid;
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generic_load (filename, from_tty);
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generic_load (filename, from_tty);
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/* Finally, make the PC point at the start address */
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/* Finally, make the PC point at the start address */
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if (exec_bfd)
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if (exec_bfd)
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write_pc (bfd_get_start_address (exec_bfd));
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write_pc (bfd_get_start_address (exec_bfd));
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inferior_pid = 0; /* No process now */
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inferior_pid = 0; /* No process now */
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}
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}
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#else
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#else
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static void
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static void
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mon960_load (desc, file, hashmark)
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mon960_load (desc, file, hashmark)
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serial_t desc;
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serial_t desc;
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char *file;
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char *file;
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int hashmark;
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int hashmark;
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{
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{
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bfd *abfd;
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bfd *abfd;
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asection *s;
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asection *s;
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char *buffer;
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char *buffer;
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int i;
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int i;
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buffer = alloca (XMODEM_PACKETSIZE);
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buffer = alloca (XMODEM_PACKETSIZE);
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abfd = bfd_openr (file, 0);
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abfd = bfd_openr (file, 0);
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if (!abfd)
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if (!abfd)
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{
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{
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printf_filtered ("Unable to open file %s\n", file);
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printf_filtered ("Unable to open file %s\n", file);
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return;
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return;
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}
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}
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if (bfd_check_format (abfd, bfd_object) == 0)
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if (bfd_check_format (abfd, bfd_object) == 0)
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{
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{
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printf_filtered ("File is not an object file\n");
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printf_filtered ("File is not an object file\n");
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return;
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return;
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}
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}
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for (s = abfd->sections; s; s = s->next)
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for (s = abfd->sections; s; s = s->next)
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if (s->flags & SEC_LOAD)
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if (s->flags & SEC_LOAD)
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{
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{
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bfd_size_type section_size;
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bfd_size_type section_size;
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printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
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printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
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s->vma + s->_raw_size);
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s->vma + s->_raw_size);
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gdb_flush (gdb_stdout);
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gdb_flush (gdb_stdout);
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monitor_printf (current_monitor->load, s->vma);
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monitor_printf (current_monitor->load, s->vma);
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if (current_monitor->loadresp)
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if (current_monitor->loadresp)
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monitor_expect (current_monitor->loadresp, NULL, 0);
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monitor_expect (current_monitor->loadresp, NULL, 0);
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xmodem_init_xfer (desc);
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xmodem_init_xfer (desc);
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section_size = bfd_section_size (abfd, s);
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section_size = bfd_section_size (abfd, s);
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for (i = 0; i < section_size; i += XMODEM_DATASIZE)
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for (i = 0; i < section_size; i += XMODEM_DATASIZE)
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{
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{
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int numbytes;
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int numbytes;
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numbytes = min (XMODEM_DATASIZE, section_size - i);
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numbytes = min (XMODEM_DATASIZE, section_size - i);
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bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
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bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
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numbytes);
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numbytes);
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xmodem_send_packet (desc, buffer, numbytes, hashmark);
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xmodem_send_packet (desc, buffer, numbytes, hashmark);
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if (hashmark)
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if (hashmark)
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{
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{
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putchar_unfiltered ('#');
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putchar_unfiltered ('#');
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gdb_flush (gdb_stdout);
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gdb_flush (gdb_stdout);
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}
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}
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} /* Per-packet (or S-record) loop */
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} /* Per-packet (or S-record) loop */
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xmodem_finish_xfer (desc);
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xmodem_finish_xfer (desc);
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monitor_expect_prompt (NULL, 0);
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monitor_expect_prompt (NULL, 0);
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putchar_unfiltered ('\n');
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putchar_unfiltered ('\n');
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} /* Loadable sections */
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} /* Loadable sections */
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if (hashmark)
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if (hashmark)
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putchar_unfiltered ('\n');
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putchar_unfiltered ('\n');
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}
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}
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#endif /* USE_GENERIC_LOAD */
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#endif /* USE_GENERIC_LOAD */
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/* This array of registers need to match the indexes used by GDB.
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/* This array of registers need to match the indexes used by GDB.
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This exists because the various ROM monitors use different strings
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This exists because the various ROM monitors use different strings
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than does GDB, and don't necessarily support all the registers
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than does GDB, and don't necessarily support all the registers
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either. So, typing "info reg sp" becomes a "r30". */
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either. So, typing "info reg sp" becomes a "r30". */
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/* these correspond to the offsets from tm-* files from config directories */
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/* these correspond to the offsets from tm-* files from config directories */
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/* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */
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/* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */
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/* NOTE: "ip" is documented as "ir" in the Mon960 UG. */
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/* NOTE: "ip" is documented as "ir" in the Mon960 UG. */
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/* NOTE: "ir" can't be accessed... but there's an ip and rip. */
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/* NOTE: "ir" can't be accessed... but there's an ip and rip. */
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static char *full_regnames[NUM_REGS] =
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static char *full_regnames[NUM_REGS] =
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{
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{
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/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7",
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/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7",
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/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
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/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
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/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
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/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7",
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/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp",
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/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp",
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/* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3",
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/* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3",
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};
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};
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static char *mon960_regnames[NUM_REGS];
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static char *mon960_regnames[NUM_REGS];
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/* Define the monitor command strings. Since these are passed directly
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/* Define the monitor command strings. Since these are passed directly
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through to a printf style function, we may include formatting
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through to a printf style function, we may include formatting
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strings. We also need a CR or LF on the end. */
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strings. We also need a CR or LF on the end. */
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/* need to pause the monitor for timing reasons, so slow it down */
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/* need to pause the monitor for timing reasons, so slow it down */
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#if 0
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#if 0
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/* FIXME: this extremely long init string causes MON960 to return two NAKS
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/* FIXME: this extremely long init string causes MON960 to return two NAKS
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instead of performing the autobaud recognition, at least when gdb
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instead of performing the autobaud recognition, at least when gdb
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is running on GNU/Linux. The short string below works on Linux, and on
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is running on GNU/Linux. The short string below works on Linux, and on
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SunOS using a tcp serial connection. Must retest on SunOS using a
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SunOS using a tcp serial connection. Must retest on SunOS using a
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direct serial connection; if that works, get rid of the long string. */
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direct serial connection; if that works, get rid of the long string. */
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static char *mon960_inits[] =
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static char *mon960_inits[] =
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{"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL};
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{"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL};
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#else
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#else
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static char *mon960_inits[] =
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static char *mon960_inits[] =
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{"\r", NULL};
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{"\r", NULL};
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#endif
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#endif
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static struct monitor_ops mon960_cmds;
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static struct monitor_ops mon960_cmds;
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static void
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static void
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init_mon960_cmds (void)
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init_mon960_cmds (void)
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{
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{
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mon960_cmds.flags = MO_CLR_BREAK_USES_ADDR
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mon960_cmds.flags = MO_CLR_BREAK_USES_ADDR
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| MO_NO_ECHO_ON_OPEN | MO_SEND_BREAK_ON_STOP | MO_GETMEM_READ_SINGLE; /* flags */
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| MO_NO_ECHO_ON_OPEN | MO_SEND_BREAK_ON_STOP | MO_GETMEM_READ_SINGLE; /* flags */
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mon960_cmds.init = mon960_inits; /* Init strings */
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mon960_cmds.init = mon960_inits; /* Init strings */
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mon960_cmds.cont = "go\n\r"; /* continue command */
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mon960_cmds.cont = "go\n\r"; /* continue command */
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mon960_cmds.step = "st\n\r"; /* single step */
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mon960_cmds.step = "st\n\r"; /* single step */
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mon960_cmds.stop = NULL; /* break interrupts the program */
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mon960_cmds.stop = NULL; /* break interrupts the program */
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mon960_cmds.set_break = NULL; /* set a breakpoint */
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mon960_cmds.set_break = NULL; /* set a breakpoint */
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mon960_cmds.clr_break = /* can't use "br" because only 2 hw bps are supported */
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mon960_cmds.clr_break = /* can't use "br" because only 2 hw bps are supported */
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mon960_cmds.clr_all_break = NULL; /* clear a breakpoint - "de" is for hw bps */
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mon960_cmds.clr_all_break = NULL; /* clear a breakpoint - "de" is for hw bps */
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NULL, /* clear all breakpoints */
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NULL, /* clear all breakpoints */
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mon960_cmds.fill = NULL; /* fill (start end val) */
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mon960_cmds.fill = NULL; /* fill (start end val) */
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/* can't use "fi" because it takes words, not bytes */
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/* can't use "fi" because it takes words, not bytes */
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/* can't use "mb", "md" or "mo" because they require interaction */
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/* can't use "mb", "md" or "mo" because they require interaction */
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mon960_cmds.setmem.cmdb = NULL; /* setmem.cmdb (addr, value) */
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mon960_cmds.setmem.cmdb = NULL; /* setmem.cmdb (addr, value) */
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mon960_cmds.setmem.cmdw = NULL; /* setmem.cmdw (addr, value) */
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mon960_cmds.setmem.cmdw = NULL; /* setmem.cmdw (addr, value) */
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mon960_cmds.setmem.cmdl = "md %x %x\n\r"; /* setmem.cmdl (addr, value) */
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mon960_cmds.setmem.cmdl = "md %x %x\n\r"; /* setmem.cmdl (addr, value) */
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mon960_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
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mon960_cmds.setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
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mon960_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
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mon960_cmds.setmem.resp_delim = NULL; /* setmem.resp_delim */
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mon960_cmds.setmem.term = NULL; /* setmem.term */
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mon960_cmds.setmem.term = NULL; /* setmem.term */
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mon960_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
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mon960_cmds.setmem.term_cmd = NULL; /* setmem.term_cmd */
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/* since the parsing of multiple bytes is difficult due to
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/* since the parsing of multiple bytes is difficult due to
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interspersed addresses, we'll only read 1 value at a time,
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interspersed addresses, we'll only read 1 value at a time,
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even tho these can handle a count */
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even tho these can handle a count */
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mon960_cmds.getmem.cmdb = "db %x\n\r"; /* getmem.cmdb (addr, #bytes) */
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mon960_cmds.getmem.cmdb = "db %x\n\r"; /* getmem.cmdb (addr, #bytes) */
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mon960_cmds.getmem.cmdw = "ds %x\n\r"; /* getmem.cmdw (addr, #swords) */
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mon960_cmds.getmem.cmdw = "ds %x\n\r"; /* getmem.cmdw (addr, #swords) */
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mon960_cmds.getmem.cmdl = "di %x\n\r"; /* getmem.cmdl (addr, #words) */
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mon960_cmds.getmem.cmdl = "di %x\n\r"; /* getmem.cmdl (addr, #words) */
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mon960_cmds.getmem.cmdll = "dd %x\n\r"; /* getmem.cmdll (addr, #dwords) */
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mon960_cmds.getmem.cmdll = "dd %x\n\r"; /* getmem.cmdll (addr, #dwords) */
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mon960_cmds.getmem.resp_delim = " : "; /* getmem.resp_delim */
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mon960_cmds.getmem.resp_delim = " : "; /* getmem.resp_delim */
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mon960_cmds.getmem.term = NULL; /* getmem.term */
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mon960_cmds.getmem.term = NULL; /* getmem.term */
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mon960_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
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mon960_cmds.getmem.term_cmd = NULL; /* getmem.term_cmd */
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mon960_cmds.setreg.cmd = "md %s %x\n\r"; /* setreg.cmd (name, value) */
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mon960_cmds.setreg.cmd = "md %s %x\n\r"; /* setreg.cmd (name, value) */
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mon960_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
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mon960_cmds.setreg.resp_delim = NULL; /* setreg.resp_delim */
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mon960_cmds.setreg.term = NULL; /* setreg.term */
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mon960_cmds.setreg.term = NULL; /* setreg.term */
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mon960_cmds.setreg.term_cmd = NULL, /* setreg.term_cmd */
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mon960_cmds.setreg.term_cmd = NULL, /* setreg.term_cmd */
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mon960_cmds.getreg.cmd = "di %s\n\r"; /* getreg.cmd (name) */
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mon960_cmds.getreg.cmd = "di %s\n\r"; /* getreg.cmd (name) */
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mon960_cmds.getreg.resp_delim = " : "; /* getreg.resp_delim */
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mon960_cmds.getreg.resp_delim = " : "; /* getreg.resp_delim */
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mon960_cmds.getreg.term = NULL; /* getreg.term */
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mon960_cmds.getreg.term = NULL; /* getreg.term */
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mon960_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
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mon960_cmds.getreg.term_cmd = NULL; /* getreg.term_cmd */
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mon960_cmds.dump_registers = "re\n\r"; /* dump_registers */
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mon960_cmds.dump_registers = "re\n\r"; /* dump_registers */
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mon960_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */
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mon960_cmds.register_pattern = "\\(\\w+\\)=\\([0-9a-fA-F]+\\)"; /* register_pattern */
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mon960_cmds.supply_register = NULL; /* supply_register */
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mon960_cmds.supply_register = NULL; /* supply_register */
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#ifdef USE_GENERIC_LOAD
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#ifdef USE_GENERIC_LOAD
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mon960_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
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mon960_cmds.load_routine = NULL; /* load_routine (defaults to SRECs) */
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mon960_cmds.load = NULL; /* download command */
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mon960_cmds.load = NULL; /* download command */
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mon960_cmds.loadresp = NULL; /* load response */
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mon960_cmds.loadresp = NULL; /* load response */
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#else
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#else
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mon960_cmds.load_routine = mon960_load; /* load_routine (defaults to SRECs) */
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mon960_cmds.load_routine = mon960_load; /* load_routine (defaults to SRECs) */
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mon960_cmds.load = "do\n\r"; /* download command */
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mon960_cmds.load = "do\n\r"; /* download command */
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mon960_cmds.loadresp = "Downloading\n\r"; /* load response */
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mon960_cmds.loadresp = "Downloading\n\r"; /* load response */
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#endif
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#endif
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mon960_cmds.prompt = "=>"; /* monitor command prompt */
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mon960_cmds.prompt = "=>"; /* monitor command prompt */
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mon960_cmds.line_term = "\n\r"; /* end-of-command delimitor */
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mon960_cmds.line_term = "\n\r"; /* end-of-command delimitor */
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mon960_cmds.cmd_end = NULL; /* optional command terminator */
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mon960_cmds.cmd_end = NULL; /* optional command terminator */
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mon960_cmds.target = &mon960_ops; /* target operations */
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mon960_cmds.target = &mon960_ops; /* target operations */
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mon960_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
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mon960_cmds.stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
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mon960_cmds.regnames = mon960_regnames; /* registers names */
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mon960_cmds.regnames = mon960_regnames; /* registers names */
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mon960_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
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mon960_cmds.magic = MONITOR_OPS_MAGIC; /* magic */
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};
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};
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static void
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static void
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mon960_open (args, from_tty)
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mon960_open (args, from_tty)
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char *args;
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char *args;
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int from_tty;
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int from_tty;
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{
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{
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char buf[64];
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char buf[64];
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monitor_open (args, &mon960_cmds, from_tty);
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monitor_open (args, &mon960_cmds, from_tty);
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/* Attempt to fetch the value of the first floating point register (fp0).
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/* Attempt to fetch the value of the first floating point register (fp0).
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If the monitor returns a string containing the word "Bad" we'll assume
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If the monitor returns a string containing the word "Bad" we'll assume
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this processor has no floating point registers, and nullify the
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this processor has no floating point registers, and nullify the
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regnames entries that refer to FP registers. */
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regnames entries that refer to FP registers. */
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monitor_printf (mon960_cmds.getreg.cmd, full_regnames[FP0_REGNUM]); /* di fp0 */
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monitor_printf (mon960_cmds.getreg.cmd, full_regnames[FP0_REGNUM]); /* di fp0 */
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if (monitor_expect_prompt (buf, sizeof (buf)) != -1)
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if (monitor_expect_prompt (buf, sizeof (buf)) != -1)
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if (strstr (buf, "Bad") != NULL)
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if (strstr (buf, "Bad") != NULL)
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{
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{
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int i;
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int i;
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for (i = FP0_REGNUM; i < FP0_REGNUM + 4; i++)
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for (i = FP0_REGNUM; i < FP0_REGNUM + 4; i++)
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mon960_regnames[i] = NULL;
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mon960_regnames[i] = NULL;
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}
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}
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}
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}
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void
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void
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_initialize_mon960 ()
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_initialize_mon960 ()
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{
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{
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memcpy (mon960_regnames, full_regnames, sizeof (full_regnames));
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memcpy (mon960_regnames, full_regnames, sizeof (full_regnames));
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init_mon960_cmds ();
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init_mon960_cmds ();
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init_monitor_ops (&mon960_ops);
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init_monitor_ops (&mon960_ops);
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mon960_ops.to_shortname = "mon960"; /* for the target command */
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mon960_ops.to_shortname = "mon960"; /* for the target command */
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mon960_ops.to_longname = "Intel 960 MON960 monitor";
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mon960_ops.to_longname = "Intel 960 MON960 monitor";
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#ifdef USE_GENERIC_LOAD
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#ifdef USE_GENERIC_LOAD
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mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */
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mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */
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#endif
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#endif
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/* use SW breaks; target only supports 2 HW breakpoints */
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/* use SW breaks; target only supports 2 HW breakpoints */
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mon960_ops.to_insert_breakpoint = memory_insert_breakpoint;
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mon960_ops.to_insert_breakpoint = memory_insert_breakpoint;
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mon960_ops.to_remove_breakpoint = memory_remove_breakpoint;
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mon960_ops.to_remove_breakpoint = memory_remove_breakpoint;
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mon960_ops.to_doc =
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mon960_ops.to_doc =
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"Use an Intel 960 board running the MON960 debug monitor.\n\
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"Use an Intel 960 board running the MON960 debug monitor.\n\
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Specify the serial device it is connected to (e.g. /dev/ttya).";
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Specify the serial device it is connected to (e.g. /dev/ttya).";
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mon960_ops.to_open = mon960_open;
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mon960_ops.to_open = mon960_open;
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add_target (&mon960_ops);
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add_target (&mon960_ops);
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}
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}
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