aboutsummaryrefslogtreecommitdiff
path: root/gdb/w89k-rom.c
blob: d01a26582a7690d6d200ec551b059906f680512a (plain)
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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
/* Remote target glue for the WinBond ROM monitor running on the "Cougar"
   W89k eval board.

   Copyright 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"
#include "serial.h"
#include "xmodem.h"


static void w89k_open PARAMS ((char *args, int from_tty));

/*
 * this array of registers need to match the indexes used by GDB. The
 * whole reason this exists is cause the various ROM monitors use
 * different strings than GDB does, and doesn't support all the
 * registers either. So, typing "info reg sp" becomes a "r30".
 */

static char *w89k_regnames[NUM_REGS] =
{
  "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
  "SAR", "PC", NULL, NULL, NULL, "EIEM", "IIR", "IVA",
  "IOR", "IPSW", NULL, NULL, NULL, NULL, NULL,
  NULL, NULL, NULL, NULL, NULL, NULL, NULL,
  "CCR", NULL, NULL, "TR0", "TR1",
};

static void
w89k_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 'r':
	numregs = 4;
	switch (regname[1])
	  {
	  case '0':
	    regno = R0_REGNUM;
	    break;
	  case '4':
	    regno = R0_REGNUM + 4;
	    break;
	  case '8':
	    regno = R0_REGNUM + 8;
	    break;
	  }
	break;
      case 'P':
	if (regname[1] == 'C')
	  regno = PC_REGNUM;
	break;
      }
  else if (regnamelen == 3)
    switch (regname[0])
      {
      case 'r':
	numregs = 4;
	if (regname[1] == '1' && regname[2] == '2')
	  regno = R0_REGNUM + 12;
	else if (regname[1] == '1' && regname[2] == '6')
	  regno = R0_REGNUM + 16;
	else if (regname[1] == '2' && regname[2] == '0')
	  regno = R0_REGNUM + 20;
	else if (regname[1] == '2' && regname[2] == '4')
	  regno = R0_REGNUM + 24;
	else if (regname[1] == '2' && regname[2] == '8')
	  regno = R0_REGNUM + 28;
	break;
      case 'R':
	if (regname[1] == 'C' && regname[2] == 'R')
	  regno = RCR_REGNUM;
	break;
      case 'C':
	if (regname[1] == 'C' && regname[2] == 'R')
	  regno = CCR_REGNUM;
	break;
      case 'S':
	if (regname[1] == 'A' && regname[2] == 'R')
	  regno = SAR_REGNUM;
	break;
      case 'I':
	if (regname[1] == 'I' && regname[2] == 'R')
	  regno = IIR_REGNUM;
	else if (regname[1] == 'O' && regname[2] == 'R')
	  regno = IOR_REGNUM;
	break;
      case 'T':
	numregs = 4;
	if (regname[1] == 'R')
	  if (regname[2] == '0')
	    regno = TR0_REGNUM;
	  else if (regname[2] == '4')
	    regno = TR0_REGNUM + 4;
	break;
      }
  else if (regnamelen == 4)
    switch (regname[0])
      {
      case 'E':
	if (regname[1] == 'I')
	  if (regname[2] == 'E' && regname[3] == 'M')
	    regno = EIEM_REGNUM;
	break;
      case 'I':
	if (regname[1] == 'P' && regname[2] == 'S' && regname[3] == 'W')
	  regno = IPSW_REGNUM;
	break;
      }
  else if (regnamelen == 5)
    switch (regname[0])
      {
      case 'I':
	if (regname[1] == 'A'
	    && regname[2] == 'O'
	    && regname[3] == 'Q'
	    && regname[4] == 'B')
	  regno = PCOQ_TAIL_REGNUM;
	break;
      }

  if (regno >= 0)
    while (numregs-- > 0)
      val = monitor_supply_register (regno++, val);
}

static int hashmark = 1;	/* flag set by "set hash" */

extern struct monitor_ops w89k_cmds; /* fwd decl */

static void
w89k_load (desc, file, hashmark)
     serial_t desc;
     char *file;
     int hashmark;
{
  bfd *abfd;
  asection *s;
  char *buffer;
  int i;

  buffer = alloca (XMODEM_PACKETSIZE);

  abfd = bfd_openr (file, 0);
  if (!abfd)
    {
      printf_filtered ("Unable to open file %s\n", file);
      return;
    }

  if (bfd_check_format (abfd, bfd_object) == 0)
    {
      printf_filtered ("File is not an object file\n");
      return;
    }
  
  for (s = abfd->sections; s; s = s->next)
    if (s->flags & SEC_LOAD)
      {
	bfd_size_type section_size;

	printf_filtered ("%s\t: 0x%4x .. 0x%4x  ", s->name, s->vma,
			 s->vma + s->_raw_size);
	gdb_flush (gdb_stdout);

	monitor_printf (w89k_cmds.load, s->vma);
	if (w89k_cmds.loadresp)
	  monitor_expect (w89k_cmds.loadresp, NULL, 0);

	xmodem_init_xfer (desc);

	section_size = bfd_section_size (abfd, s);

	for (i = 0; i < section_size; i += XMODEM_DATASIZE)
	  {
	    int numbytes;

	    numbytes = min (XMODEM_DATASIZE, section_size - i);

	    bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
				      numbytes);

	    xmodem_send_packet (desc, buffer, numbytes, hashmark);

	    if (hashmark)
	      {
		putchar_unfiltered ('#');
		gdb_flush (gdb_stdout);
	      }
	  }			/* Per-packet (or S-record) loop */

	xmodem_finish_xfer (desc);

	monitor_expect_prompt (NULL, 0);

	putchar_unfiltered ('\n');
      }				/* Loadable sections */
  
  if (hashmark) 
    putchar_unfiltered ('\n');
}

/*
 * Define the monitor command strings. Since these are passed directly
 * through to a printf style function, we need can include formatting
 * strings. We also need a CR or LF on the end.
 */

static struct target_ops w89k_ops;

static char *w89k_inits[] = {"\n", NULL};

static struct monitor_ops w89k_cmds ;
static void
init_w89k_cmds(void)
{
  w89k_cmds.flags =   MO_GETMEM_NEEDS_RANGE|MO_FILL_USES_ADDR; /* flags */
  w89k_cmds.init =   w89k_inits;		/* Init strings */
  w89k_cmds.cont =   "g\n";			/* continue command */
  w89k_cmds.step =   "t\n";			/* single step */
  w89k_cmds.stop =   "\003";			/* Interrupt char (^C) */
  w89k_cmds.set_break =   "bp %x\n";		/* set a breakpoint */
  w89k_cmds.clr_break =   "bc %x\n";		/* clear a breakpoint */
  w89k_cmds.clr_all_break =   "bc *\n";		/* clear all breakpoints */
  w89k_cmds.fill =   "f %x %x %x\n";		/* memory fill cmd */
  w89k_cmds.setmem.cmdb =     "eb %x %x\n";	/* setmem.cmdb (addr, value) */
  w89k_cmds.setmem.cmdw =     "eh %x %x\n";	/* setmem.cmdw (addr, value) */
  w89k_cmds.setmem.cmdl =     "ew %x %x\n";	/* setmem.cmdl (addr, value) */
  w89k_cmds.setmem.cmdll =     NULL;		/* setmem.cmdll (addr, value) */
  w89k_cmds.setmem.resp_delim =     NULL;	/* setreg.resp_delim */
  w89k_cmds.setmem.term =     NULL;		/* setreg.term */
  w89k_cmds.setmem.term_cmd =     NULL;		/* setreg.term_cmd */
  w89k_cmds.getmem.cmdb =     "db %x %x\n";/* getmem.cmdb (startaddr, endaddr) */
  w89k_cmds.getmem.cmdw =     "dh %x %x\n";/* getmem.cmdw (startaddr, endaddr) */
  w89k_cmds.getmem.cmdl =     "dw %x %x\n";/* getmem.cmdl (startaddr, endaddr) */
  w89k_cmds.getmem.cmdll =     NULL;	  /* getmem.cmdll (startaddr, endaddr) */
  w89k_cmds.getmem.resp_delim =     "  ";	/* getmem.resp_delim */
  w89k_cmds.getmem.term =     NULL;		/* getmem.term */
  w89k_cmds.getmem.term_cmd =     NULL;		/* getmem.term_cmd */
  w89k_cmds.setreg.cmd =     "r %s %x\n";	/* setreg.cmd (name, value) */
  w89k_cmds.setreg.resp_delim =     NULL;	/* setreg.resp_delim */
  w89k_cmds.setreg.term =     NULL;		/* setreg.term */
  w89k_cmds.setreg.term_cmd =     NULL;		/* setreg.term_cmd */
  w89k_cmds.getreg.cmd =     "r %s\n";		/* getreg.cmd (name) */
  w89k_cmds.getreg.resp_delim =     "\r";	/* getreg.resp_delim */
  w89k_cmds.getreg.term =     NULL;		/* getreg.term */
  w89k_cmds.getreg.term_cmd =     NULL;		/* getreg.term_cmd */
  w89k_cmds.dump_registers =   "r\n";		/* dump_registers */
  w89k_cmds.register_pattern =   "\\(\\w+\\)\\( +[0-9a-fA-F]+\\b\\)+";
  w89k_cmds.supply_register =   w89k_supply_register;		/* supply_register */
  w89k_cmds.load_routine =   w89k_load;		/* load routine */
  w89k_cmds.load =   "u %x\n";			/* download command */
  w89k_cmds.loadresp =   "\021";		/* load response (^Q) */
  w89k_cmds.prompt =   "ROM>";			/* monitor command prompt */
  w89k_cmds.line_term =   "\n";			/* end-of-line terminator */
  w89k_cmds.cmd_end =   NULL;			/* optional command terminator */
  w89k_cmds.target =   &w89k_ops;		/* target operations */
  w89k_cmds.stopbits =   SERIAL_1_STOPBITS;	/* number of stop bits */
  w89k_cmds.regnames =   w89k_regnames;		/* register names */
  w89k_cmds.magic =   MONITOR_OPS_MAGIC	;	/* magic */
} /* init_w89k_cmds */
    
static void
w89k_open(args, from_tty)
     char *args;
     int from_tty;
{
  monitor_open (args, &w89k_cmds, from_tty);
}

void
_initialize_w89k ()
{
  init_w89k_cmds() ;
  init_monitor_ops (&w89k_ops);

  w89k_ops.to_shortname = "w89k";
  w89k_ops.to_longname = "WinBond's debug monitor for the W89k Eval board";
  w89k_ops.to_doc = "Debug on a WinBond W89K eval board.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
  w89k_ops.to_open = w89k_open;

  add_target (&w89k_ops);
}