gdb/rom68k-rom.c

   1 /* Remote target glue for the rom68k ROM monitor. This was running on a
   2 Motorola IDP 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 #include "serial.h"
  27
  28 void rom68k_open();
  29
  30 /*
  31  * this array of registers need to match the indexes used by GDB. The
  32  * whole reason this exists is cause the various ROM monitors use
  33  * different strings than GDB does, and doesn't support all the
  34  * registers either. So, typing "info reg sp" becomes a "r30".
  35  */
  36 static char *rom68k_regnames[NUM_REGS] = {
  37   "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
  38   "A0", "A1", "A2", "A3", "A4", "A5", "A6", "ISP",
  39   "SR", "PC" };
  40
  41 /*
  42  * Define the monitor command strings. Since these are passed directly
  43  * through to a printf style function, we need can include formatting
  44  * strings. We also need a CR or LF on the end.
  45  */
  46
  47 static struct target_ops rom68k_ops;
  48
  49 static char *rom68k_loadtypes[] = {"none", "srec", "default", NULL};
  50 static char *rom68k_loadprotos[] = {"none", NULL};
  51
  52 static struct monitor_ops rom68k_cmds =
  53 {
  54   1,                            /* 1 for ASCII, 0 for binary */
  55   ".\r\r",                      /* monitor init string */
  56   "go \r",                      /* execute or usually GO command */
  57   "go \r",                      /* continue command */
  58   "st \r",                      /* single step */
  59   "db %x\r",                    /* set a breakpoint */
  60   "cb %x\r",                    /* clear a breakpoint */
  61   0,                            /* 0 for number, 1 for address */
  62   {
  63     "pm %x %x\r",               /* setmem.cmd (addr, value) */
  64     NULL,                       /* setreg.resp_delim */
  65     NULL,                       /* setreg.term */
  66     NULL,                       /* setreg.term_cmd */
  67   },
  68   {
  69     "dm %x 1\r",                /* getmem.cmd (addr) */
  70     "  ",                       /* getmem.resp_delim */
  71     NULL,                       /* getmem.term */
  72     NULL,                       /* getmem.term_cmd */
  73   },
  74   {
  75     "pr %s %x\r",               /* setreg.cmd (name, value) */
  76     NULL,                       /* setreg.resp_delim */
  77     NULL,                       /* setreg.term */
  78     NULL                        /* setreg.term_cmd */
  79   },
  80   {
  81     "pr %s\r",                  /* getreg.cmd (name) */
  82     ":  ",                      /* getreg.resp_delim */
  83     "= ",                       /* getreg.term */
  84     ".\r"                       /* getreg.term_cmd */
  85   },
  86   "dc\r",                       /* download command */
  87   "ROM68K :->",                 /* monitor command prompt */
  88   "=",                          /* end-of-command delimitor */
  89   ".\r",                        /* optional command terminator */
  90   &rom68k_ops,                  /* target operations */
  91   rom68k_loadtypes,             /* loadtypes */
  92   rom68k_loadprotos,            /* loadprotos */
  93   "9600",                       /* supported baud rates */
  94   SERIAL_1_STOPBITS,            /* number of stop bits */
  95   rom68k_regnames               /* registers names */
  96   };
  97
  98 void
  99 rom68k_open(args, from_tty)
 100      char *args;
 101      int from_tty;
 102 {
 103   monitor_open (args, &rom68k_cmds, from_tty);
 104 }
 105
 106 void
 107 _initialize_rom68k ()
 108 {
 109   init_monitor_ops (&rom68k_ops);
 110
 111   rom68k_ops.to_shortname = "rom68k";
 112   rom68k_ops.to_longname = "Rom68k debug monitor for the IDP Eval board";
 113   rom68k_ops.to_doc = "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
 114 Specify the serial device it is connected to (e.g. /dev/ttya).";
 115   rom68k_ops.to_open = rom68k_open;
 116
 117   add_target (&rom68k_ops);
 118
 119   /* this is the default, since it's the only baud rate supported by the hardware */
 120   baud_rate = 9600;
 121 }