gdb/w89k-rom.c

   1 /* Remote target glue for the WinBond ROM monitor running on the "Cougar"
   2 W89k eval board.
   3
   4    Copyright 1988, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
   5
   6 This file is part of GDB.
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  21
  22 #include "defs.h"
  23 #include "gdbcore.h"
  24 #include "target.h"
  25 #include "monitor.h"
  26
  27 extern int baud_rate;
  28
  29 void w89k_open();
  30 void monitor_open();
  31
  32 /*
  33  * this array of registers need to match the indexes used by GDB. The
  34  * whole reason this exists is cause the various ROM monitors use
  35  * different strings than GDB does, and doesn't support all the
  36  * registers either. So, typing "info reg sp" becomes a "r30".
  37  */
  38 static char *w89k_regnames[] = {
  39   "r0",   "r1",    "r2",   "r3",   "r4",  "r5",  "r6",  "r7",  "r8",  "r9",
  40   "r10",  "r11",   "r12",  "r13",  "r14", "r15", "r16", "r17", "r18", "r19",
  41   "r20",  "r21",   "r22",  "r23",  "r24", "r25", "r26", "r27", "r28", "r29",
  42   "r30",  "r31",   "sar",  "pc",   "",    "",    "",
  43   "eiem", "iir",   "iva",  "ior",  "ipsw","",    "",    "",    "",    "",
  44   "",     "",      "",     "",     "",    "",    "",    "ccr", "",    "",
  45   "tr0",  "tr1",   "",     "",     "",    "",    "",
  46   "",     "",      "",     "",     "",    "",    "",    "",
  47   "",     "",      "",     "",     "",    "",    "",    "",
  48   "",     "",      "",     "",     "",    "",    "",    "",
  49   "",     "",      "",     "",     "",    "",    "",    "",
  50   "",     "",      "",     "",     "",    "",    "",    "",
  51   "",     "",      "",     "",     "",    "",    "",    "",
  52   "",     "",      "",     "",     "",    "",    "",    "",
  53   "",     "",      "",     "",     "",    "",    "",    ""
  54 };
  55
  56 /*
  57  * Define the monitor command strings. Since these are passed directly
  58  * through to a printf style function, we need can include formatting
  59  * strings. We also need a CR or LF on the end.
  60  */
  61
  62 static struct target_ops w89k_ops =
  63 {
  64   "w89k",
  65   "WinBond's debug monitor for the W89k Eval board",
  66   "Debug on a WinBond W89K eval board.\n\
  67 Specify the serial device it is connected to (e.g. /dev/ttya).",
  68   w89k_open,
  69   monitor_close,
  70   NULL,
  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 static char *loadtypes[] = {"none", "srec", "default", NULL};
 107 static char *loadprotos[] = {"none", "xmodem", NULL};
 108
 109 static struct monitor_ops w89k_cmds =
 110 {
 111   1,                                    /* 1 for ASCII, 0 for binary */
 112   "\n",                                 /* monitor init string */
 113   "g = %x\n",                           /* execute or usually GO command */
 114   "g\n",                                /* continue command */
 115   "t\n",                                /* single step */
 116   "bp %x\n",                            /* set a breakpoint */
 117   "bc %x\n",                            /* clear a breakpoint */
 118   0,                                    /* 0 for number, 1 for address */
 119   {
 120     "e %x %x\n",                        /* set memory */
 121     "",                                 /* delimiter */
 122     "",                                 /* the result */
 123   },
 124   {
 125     "db %x %x\n",                       /* get memory */
 126     "",                                 /* delimiter */
 127     "",                                 /* the result */
 128   },
 129   {
 130     "r %s %x\n",                        /* set a register */
 131     "",                                 /* delimiter between registers */
 132     "",                                 /* the result */
 133   },
 134   {
 135     "r %s\n",                           /* get a register */
 136     "",                                 /* delimiter between registers */
 137     "",                                 /* the result */
 138   },
 139   "u\n",                                /* download command */
 140   "ROM>",                               /* monitor command prompt */
 141   "",                                   /* end-of-command delimitor */
 142   "",                                   /* optional command terminator */
 143   &w89k_ops,                            /* target operations */
 144   w89k_loadtypes,               /* loadtypes */
 145   w89k_loadprotos,              /* loadprotos */
 146   "9600",                               /* supported baud rates */
 147   SERIAL_1_STOPBITS,            /* number of stop bits */
 148   w89k_regnames                         /* registers names */
 149 };
 150
 151 void
 152 w89k_open(args, from_tty)
 153      char *args;
 154      int from_tty;
 155 {
 156   monitor_open (args, &w89k_cmds, from_tty);
 157 }
 158
 159 void
 160 _initialize_w89k ()
 161 {
 162   add_target (&w89k_ops);
 163
 164   /* this is the default, since it's the only baud rate supported by the hardware */
 165   baud_rate = 9600;
 166 }