1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/* Remote target glue for the ROM68K ROM monitor.
Copyright 1988, 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
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. */
#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"
#include "serial.h"
static void rom68k_open PARAMS ((char *args, int from_tty));
static void
rom68k_supply_register (regname, regnamelen, val, vallen)
char *regname;
int regnamelen;
char *val;
int vallen;
{
int numregs;
int regno;
numregs = 1;
regno = -1;
if (regnamelen == 2)
switch (regname[0])
{
case 'S':
if (regname[1] == 'R')
regno = PS_REGNUM;
break;
case 'P':
if (regname[1] == 'C')
regno = PC_REGNUM;
break;
case 'D':
if (regname[1] != 'R')
break;
regno = D0_REGNUM;
numregs = 8;
break;
case 'A':
if (regname[1] != 'R')
break;
regno = A0_REGNUM;
numregs = 7;
break;
}
else if (regnamelen == 3)
switch (regname[0])
{
case 'I':
if (regname[1] == 'S' && regname[2] == 'P')
regno = SP_REGNUM;
}
if (regno >= 0)
while (numregs-- > 0)
val = monitor_supply_register (regno++, val);
}
/* This array of registers need to match the indexes used by GDB.
This exists because the various ROM monitors use different strings
than does GDB, and don't necessarily support all the registers
either. So, typing "info reg sp" becomes a "r30". */
static char *rom68k_regnames[NUM_REGS] = {
"D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
"A0", "A1", "A2", "A3", "A4", "A5", "A6", "ISP",
"SR", "PC" };
/* Define the monitor command strings. Since these are passed directly
through to a printf style function, we may include formatting
strings. We also need a CR or LF on the end. */
static struct target_ops rom68k_ops;
static char *rom68k_inits[] = {".\r\r", NULL}; /* Exits pm/pr & download cmds */
static struct monitor_ops rom68k_cmds =
{
0, /* flags */
rom68k_inits, /* monitor init string */
"go\r", /* continue command */
"st\r", /* single step */
NULL, /* No way to interrupt program */
"db %x\r", /* set a breakpoint */
"cb %x\r", /* clear a breakpoint */
"cb *\r", /* clear all breakpoints */
"fm %x %x %x\r", /* fill (start len val) */
{
"pm %x %x\r", /* setmem.cmdb (addr, value) */
"pm.w %x %x\r", /* setmem.cmdw (addr, value) */
"pm.l %x %x\r", /* setmem.cmdl (addr, value) */
NULL, /* setmem.cmdll (addr, value) */
NULL, /* setreg.resp_delim */
NULL, /* setreg.term */
NULL, /* setreg.term_cmd */
},
{
"dm %x %x\r", /* getmem.cmdb (addr, len) */
"dm.w %x %x\r", /* getmem.cmdw (addr, len) */
"dm.l %x %x\r", /* getmem.cmdl (addr, len) */
NULL, /* getmem.cmdll (addr, len) */
" ", /* getmem.resp_delim */
NULL, /* getmem.term */
NULL, /* getmem.term_cmd */
},
{
"pr %s %x\r", /* setreg.cmd (name, value) */
NULL, /* setreg.resp_delim */
NULL, /* setreg.term */
NULL /* setreg.term_cmd */
},
{
"pr %s\r", /* getreg.cmd (name) */
": ", /* getreg.resp_delim */
"= ", /* getreg.term */
".\r" /* getreg.term_cmd */
},
"dr\r", /* dump_registers */
/* register_pattern */
"\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)",
rom68k_supply_register, /* supply_register */
NULL, /* load_routine (defaults to SRECs) */
"dc\r", /* download command */
"Waiting for S-records from host... ", /* Load response */
"ROM68K :-> ", /* monitor command prompt */
"\r", /* end-of-line terminator */
".\r", /* optional command terminator */
&rom68k_ops, /* target operations */
SERIAL_1_STOPBITS, /* number of stop bits */
rom68k_regnames, /* registers names */
MONITOR_OPS_MAGIC /* magic */
};
static void
rom68k_open (args, from_tty)
char *args;
int from_tty;
{
monitor_open (args, &rom68k_cmds, from_tty);
}
void
_initialize_rom68k ()
{
init_monitor_ops (&rom68k_ops);
rom68k_ops.to_shortname = "rom68k";
rom68k_ops.to_longname = "Rom68k debug monitor for the IDP Eval board";
rom68k_ops.to_doc = "Debug on a Motorola IDP eval board running the ROM68K monitor.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
rom68k_ops.to_open = rom68k_open;
add_target (&rom68k_ops);
}
|
