gdb/op50-rom.c

   1 /* Remote target glue for the Oki op50n based eval board.
   2
   3    Copyright 1988, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #include "defs.h"
  22 #include "gdbcore.h"
  23 #include "target.h"
  24 #include "monitor.h"
  25
  26 void op50n_open();
  27 void monitor_open();
  28
  29 /*
  30  * this array of registers need to match the indexes used by GDB. The
  31  * whole reason this exists is cause the various ROM monitors use
  32  * different strings than GDB does, and doesn't support all the
  33  * registers either. So, typing "info reg sp" becomes a "r30".
  34  */
  35 static char *op50n_regnames[] = {
  36   "r0",  "r1",  "r2",  "r3",  "r4",  "r5",  "r6",
  37   "r7",  "r8",  "r9",  "r10", "r11", "r12", "r13",
  38   "r14", "r15", "r16", "r17", "r18", "r19", "r20",
  39   "r21", "r22", "r23", "r24", "r25", "r26", "r27",
  40   "r28", "r29", "r30", "r31", "",        "p",       "",
  41   "",    "",    "",    "",    "",       "",       "",
  42   "",    "",    "",    "",    "",       "",       "",
  43   "",    "",    "",    "",    "",       "",       "",    "",
  44   "",    "",    "",    "",    "",       "",       "",
  45   "",    "",    "",    "",    "",       "",       "",    "",
  46   "",    "",    "",    "",    "",       "",       "",    "",
  47   "",    "",    "",    "",    "",       "",       "",    "",
  48   "",    "",    "",    "",    "",       "",       "",    "",
  49   "",    "",    "",    "",    "",       "",       "",    "",
  50   "",    "",    "",    "",    "",       "",       "",    "",
  51   "",    "",    "",    "",    "",       "",       "",    "",
  52   "",    "",    "",    "",    "",       "",       "",    ""
  53 };
  54
  55 /*
  56  * Define the monitor command strings. Since these are passed directly
  57  * through to a printf style function, we need can include formatting
  58  * strings. We also need a CR or LF on the end.
  59  */
  60
  61 struct target_ops op50n_ops = {
  62   "op50n",
  63   "Oki's debug monitor for the Op50n Eval board",
  64
  65   "Debug on a Oki OP50N eval board.\n\
  66 Specify the serial device it is connected to (e.g. /dev/ttya).",
  67   op50n_open,
  68
  69   monitor_close,
  70   0,
  71   monitor_detach,
  72   monitor_resume,
  73   monitor_wait,
  74   monitor_fetch_register,
  75   monitor_store_register,
  76   monitor_prepare_to_store,
  77   monitor_xfer_inferior_memory,
  78   monitor_files_info,
  79   monitor_insert_breakpoint,
  80   monitor_remove_breakpoint,    /* Breakpoints */
  81   0,
  82   0,
  83   0,
  84   0,
  85   0,                            /* Terminal handling */
  86   monitor_kill,
  87   monitor_load,                 /* load */
  88   0,                            /* lookup_symbol */
  89   monitor_create_inferior,
  90   monitor_mourn_inferior,
  91   0,                            /* can_run */
  92   0,                            /* notice_signals */
  93   0,                            /* to_stop */
  94   process_stratum,
  95   0,                            /* next */
  96   1,
  97   1,
  98   1,
  99   1,
 100   1,                            /* all mem, mem, stack, regs, exec */
 101   0,
 102   0,                            /* Section pointers */
 103   OPS_MAGIC,                    /* Always the last thing */
 104 };
 105
 106 struct monitor_ops op50n_cmds = {
 107   1,                                    /* 1 for ASCII, 0 for binary */
 108   "\003.\n",                            /* monitor init string */
 109   "g %x\n",                             /* execute or usually GO command */
 110   "g\n",                                /* continue command */
 111   "t\n",                                /* single step */
 112   "b %x\n",                             /* set a breakpoint */
 113   "bx %x\n",                            /* clear a breakpoint */
 114   0,                                    /* 0 for number, 1 for address */
 115   {
 116     "sx %x %x;.\n",                     /* set memory */
 117     "",                                 /* delimiter  */
 118     "",                                 /* the result */
 119   },
 120   {
 121     "sx %x\n",                          /* get memory */
 122     ": ",                               /* delimiter */
 123     " ",                                /* the result */
 124   },
 125   {
 126     "x %s %x\n",                        /* set a register */
 127     "",                                 /* delimiter between registers */
 128     "",                                 /* the result */
 129   },
 130   {
 131     "x %s\n",                           /* get a register */
 132     "=",                                /* delimiter between registers */
 133     "",                                 /* the result */
 134   },
 135   "r 0\n",                              /* download command */
 136   "#",                                  /* monitor command prompt */
 137   " ",                                  /* end-of-command delimitor */
 138   ".\n",                                /* optional command terminator */
 139   &op50n_ops,                           /* target operations */
 140   "srec,ascii-srec,default",            /* load types */
 141   op50n_regnames
 142 };
 143
 144 void
 145 op50n_open(args, from_tty)
 146      char *args;
 147      int from_tty;
 148 {
 149   target_preopen(from_tty);
 150   push_target(&op50n_ops);
 151   push_monitor (&op50n_cmds);
 152   monitor_open (args, "op50n", from_tty);
 153 }
 154
 155 void
 156 _initialize_op50n ()
 157 {
 158   add_target (&op50n_ops);
 159
 160   /* this is the default, since it's that's how the board comes up after
 161      power cycle. It can then be changed using set remotebaud
 162    */
 163   baud_rate = 9600;
 164 }