| 1 |
18 |
khays |
/* Disassemble h8300 instructions.
|
| 2 |
|
|
Copyright 1993, 1994, 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
|
| 3 |
|
|
2007, 2010 Free Software Foundation, Inc.
|
| 4 |
|
|
|
| 5 |
|
|
This file is part of the GNU opcodes library.
|
| 6 |
|
|
|
| 7 |
|
|
This library 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 3, or (at your option)
|
| 10 |
|
|
any later version.
|
| 11 |
|
|
|
| 12 |
|
|
It is distributed in the hope that it will be useful, but WITHOUT
|
| 13 |
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
| 14 |
|
|
or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
| 15 |
|
|
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., 51 Franklin Street - Fifth Floor, Boston,
|
| 20 |
|
|
MA 02110-1301, USA. */
|
| 21 |
|
|
|
| 22 |
|
|
#define DEFINE_TABLE
|
| 23 |
|
|
|
| 24 |
|
|
#include "sysdep.h"
|
| 25 |
|
|
#define h8_opcodes h8ops
|
| 26 |
|
|
#include "opcode/h8300.h"
|
| 27 |
|
|
#include "dis-asm.h"
|
| 28 |
|
|
#include "opintl.h"
|
| 29 |
|
|
#include "libiberty.h"
|
| 30 |
|
|
|
| 31 |
|
|
struct h8_instruction
|
| 32 |
|
|
{
|
| 33 |
|
|
int length;
|
| 34 |
|
|
const struct h8_opcode *opcode;
|
| 35 |
|
|
};
|
| 36 |
|
|
|
| 37 |
|
|
struct h8_instruction *h8_instructions;
|
| 38 |
|
|
|
| 39 |
|
|
/* Run through the opcodes and sort them into order to make them easy
|
| 40 |
|
|
to disassemble. */
|
| 41 |
|
|
|
| 42 |
|
|
static void
|
| 43 |
|
|
bfd_h8_disassemble_init (void)
|
| 44 |
|
|
{
|
| 45 |
|
|
unsigned int i;
|
| 46 |
|
|
unsigned int nopcodes;
|
| 47 |
|
|
const struct h8_opcode *p;
|
| 48 |
|
|
struct h8_instruction *pi;
|
| 49 |
|
|
|
| 50 |
|
|
nopcodes = sizeof (h8_opcodes) / sizeof (struct h8_opcode);
|
| 51 |
|
|
|
| 52 |
|
|
h8_instructions = xmalloc (nopcodes * sizeof (struct h8_instruction));
|
| 53 |
|
|
|
| 54 |
|
|
for (p = h8_opcodes, pi = h8_instructions; p->name; p++, pi++)
|
| 55 |
|
|
{
|
| 56 |
|
|
/* Just make sure there are an even number of nibbles in it, and
|
| 57 |
|
|
that the count is the same as the length. */
|
| 58 |
|
|
for (i = 0; p->data.nib[i] != (op_type) E; i++)
|
| 59 |
|
|
;
|
| 60 |
|
|
|
| 61 |
|
|
if (i & 1)
|
| 62 |
|
|
{
|
| 63 |
|
|
fprintf (stderr, "Internal error, h8_disassemble_init.\n");
|
| 64 |
|
|
abort ();
|
| 65 |
|
|
}
|
| 66 |
|
|
|
| 67 |
|
|
pi->length = i / 2;
|
| 68 |
|
|
pi->opcode = p;
|
| 69 |
|
|
}
|
| 70 |
|
|
|
| 71 |
|
|
/* Add entry for the NULL vector terminator. */
|
| 72 |
|
|
pi->length = 0;
|
| 73 |
|
|
pi->opcode = p;
|
| 74 |
|
|
}
|
| 75 |
|
|
|
| 76 |
|
|
static void
|
| 77 |
|
|
extract_immediate (FILE *stream,
|
| 78 |
|
|
op_type looking_for,
|
| 79 |
|
|
int thisnib,
|
| 80 |
|
|
unsigned char *data,
|
| 81 |
|
|
int *cst,
|
| 82 |
|
|
int *len,
|
| 83 |
|
|
const struct h8_opcode *q)
|
| 84 |
|
|
{
|
| 85 |
|
|
switch (looking_for & SIZE)
|
| 86 |
|
|
{
|
| 87 |
|
|
case L_2:
|
| 88 |
|
|
*len = 2;
|
| 89 |
|
|
*cst = thisnib & 3;
|
| 90 |
|
|
|
| 91 |
|
|
/* DISP2 special treatment. */
|
| 92 |
|
|
if ((looking_for & MODE) == DISP)
|
| 93 |
|
|
{
|
| 94 |
|
|
if (OP_KIND (q->how) == O_MOVAB
|
| 95 |
|
|
|| OP_KIND (q->how) == O_MOVAW
|
| 96 |
|
|
|| OP_KIND (q->how) == O_MOVAL)
|
| 97 |
|
|
{
|
| 98 |
|
|
/* Handling for mova insn. */
|
| 99 |
|
|
switch (q->args.nib[0] & MODE)
|
| 100 |
|
|
{
|
| 101 |
|
|
case INDEXB:
|
| 102 |
|
|
default:
|
| 103 |
|
|
break;
|
| 104 |
|
|
case INDEXW:
|
| 105 |
|
|
*cst *= 2;
|
| 106 |
|
|
break;
|
| 107 |
|
|
case INDEXL:
|
| 108 |
|
|
*cst *= 4;
|
| 109 |
|
|
break;
|
| 110 |
|
|
}
|
| 111 |
|
|
}
|
| 112 |
|
|
else
|
| 113 |
|
|
{
|
| 114 |
|
|
/* Handling for non-mova insn. */
|
| 115 |
|
|
switch (OP_SIZE (q->how))
|
| 116 |
|
|
{
|
| 117 |
|
|
default: break;
|
| 118 |
|
|
case SW:
|
| 119 |
|
|
*cst *= 2;
|
| 120 |
|
|
break;
|
| 121 |
|
|
case SL:
|
| 122 |
|
|
*cst *= 4;
|
| 123 |
|
|
break;
|
| 124 |
|
|
}
|
| 125 |
|
|
}
|
| 126 |
|
|
}
|
| 127 |
|
|
break;
|
| 128 |
|
|
case L_8:
|
| 129 |
|
|
*len = 8;
|
| 130 |
|
|
*cst = data[0];
|
| 131 |
|
|
break;
|
| 132 |
|
|
case L_16:
|
| 133 |
|
|
case L_16U:
|
| 134 |
|
|
*len = 16;
|
| 135 |
|
|
*cst = (data[0] << 8) + data [1];
|
| 136 |
|
|
#if 0
|
| 137 |
|
|
if ((looking_for & SIZE) == L_16)
|
| 138 |
|
|
*cst = (short) *cst; /* Sign extend. */
|
| 139 |
|
|
#endif
|
| 140 |
|
|
break;
|
| 141 |
|
|
case L_32:
|
| 142 |
|
|
*len = 32;
|
| 143 |
|
|
*cst = (data[0] << 24) + (data[1] << 16) + (data[2] << 8) + data[3];
|
| 144 |
|
|
break;
|
| 145 |
|
|
default:
|
| 146 |
|
|
*len = 0;
|
| 147 |
|
|
*cst = 0;
|
| 148 |
|
|
fprintf (stream, "DISP bad size\n");
|
| 149 |
|
|
break;
|
| 150 |
|
|
}
|
| 151 |
|
|
}
|
| 152 |
|
|
|
| 153 |
|
|
static const char *regnames[] =
|
| 154 |
|
|
{
|
| 155 |
|
|
"r0h", "r1h", "r2h", "r3h", "r4h", "r5h", "r6h", "r7h",
|
| 156 |
|
|
"r0l", "r1l", "r2l", "r3l", "r4l", "r5l", "r6l", "r7l"
|
| 157 |
|
|
};
|
| 158 |
|
|
static const char *wregnames[] =
|
| 159 |
|
|
{
|
| 160 |
|
|
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
|
| 161 |
|
|
"e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7"
|
| 162 |
|
|
};
|
| 163 |
|
|
static const char *lregnames[] =
|
| 164 |
|
|
{
|
| 165 |
|
|
"er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7",
|
| 166 |
|
|
"er0", "er1", "er2", "er3", "er4", "er5", "er6", "er7"
|
| 167 |
|
|
};
|
| 168 |
|
|
static const char *cregnames[] =
|
| 169 |
|
|
{
|
| 170 |
|
|
"ccr", "exr", "mach", "macl", "", "", "vbr", "sbr"
|
| 171 |
|
|
};
|
| 172 |
|
|
|
| 173 |
|
|
static void
|
| 174 |
|
|
print_one_arg (disassemble_info *info,
|
| 175 |
|
|
bfd_vma addr,
|
| 176 |
|
|
op_type x,
|
| 177 |
|
|
int cst,
|
| 178 |
|
|
int cstlen,
|
| 179 |
|
|
int rdisp_n,
|
| 180 |
|
|
int rn,
|
| 181 |
|
|
const char **pregnames,
|
| 182 |
|
|
int len)
|
| 183 |
|
|
{
|
| 184 |
|
|
void * stream = info->stream;
|
| 185 |
|
|
fprintf_ftype outfn = info->fprintf_func;
|
| 186 |
|
|
|
| 187 |
|
|
if ((x & SIZE) == L_3 || (x & SIZE) == L_3NZ)
|
| 188 |
|
|
outfn (stream, "#0x%x", (unsigned) cst);
|
| 189 |
|
|
else if ((x & MODE) == IMM)
|
| 190 |
|
|
outfn (stream, "#0x%x", (unsigned) cst);
|
| 191 |
|
|
else if ((x & MODE) == DBIT || (x & MODE) == KBIT)
|
| 192 |
|
|
outfn (stream, "#%d", (unsigned) cst);
|
| 193 |
|
|
else if ((x & MODE) == CONST_2)
|
| 194 |
|
|
outfn (stream, "#2");
|
| 195 |
|
|
else if ((x & MODE) == CONST_4)
|
| 196 |
|
|
outfn (stream, "#4");
|
| 197 |
|
|
else if ((x & MODE) == CONST_8)
|
| 198 |
|
|
outfn (stream, "#8");
|
| 199 |
|
|
else if ((x & MODE) == CONST_16)
|
| 200 |
|
|
outfn (stream, "#16");
|
| 201 |
|
|
else if ((x & MODE) == REG)
|
| 202 |
|
|
{
|
| 203 |
|
|
switch (x & SIZE)
|
| 204 |
|
|
{
|
| 205 |
|
|
case L_8:
|
| 206 |
|
|
outfn (stream, "%s", regnames[rn]);
|
| 207 |
|
|
break;
|
| 208 |
|
|
case L_16:
|
| 209 |
|
|
case L_16U:
|
| 210 |
|
|
outfn (stream, "%s", wregnames[rn]);
|
| 211 |
|
|
break;
|
| 212 |
|
|
case L_P:
|
| 213 |
|
|
case L_32:
|
| 214 |
|
|
outfn (stream, "%s", lregnames[rn]);
|
| 215 |
|
|
break;
|
| 216 |
|
|
}
|
| 217 |
|
|
}
|
| 218 |
|
|
else if ((x & MODE) == LOWREG)
|
| 219 |
|
|
{
|
| 220 |
|
|
switch (x & SIZE)
|
| 221 |
|
|
{
|
| 222 |
|
|
case L_8:
|
| 223 |
|
|
/* Always take low half of reg. */
|
| 224 |
|
|
outfn (stream, "%s.b", regnames[rn < 8 ? rn + 8 : rn]);
|
| 225 |
|
|
break;
|
| 226 |
|
|
case L_16:
|
| 227 |
|
|
case L_16U:
|
| 228 |
|
|
/* Always take low half of reg. */
|
| 229 |
|
|
outfn (stream, "%s.w", wregnames[rn < 8 ? rn : rn - 8]);
|
| 230 |
|
|
break;
|
| 231 |
|
|
case L_P:
|
| 232 |
|
|
case L_32:
|
| 233 |
|
|
outfn (stream, "%s.l", lregnames[rn]);
|
| 234 |
|
|
break;
|
| 235 |
|
|
}
|
| 236 |
|
|
}
|
| 237 |
|
|
else if ((x & MODE) == POSTINC)
|
| 238 |
|
|
outfn (stream, "@%s+", pregnames[rn]);
|
| 239 |
|
|
|
| 240 |
|
|
else if ((x & MODE) == POSTDEC)
|
| 241 |
|
|
outfn (stream, "@%s-", pregnames[rn]);
|
| 242 |
|
|
|
| 243 |
|
|
else if ((x & MODE) == PREINC)
|
| 244 |
|
|
outfn (stream, "@+%s", pregnames[rn]);
|
| 245 |
|
|
|
| 246 |
|
|
else if ((x & MODE) == PREDEC)
|
| 247 |
|
|
outfn (stream, "@-%s", pregnames[rn]);
|
| 248 |
|
|
|
| 249 |
|
|
else if ((x & MODE) == IND)
|
| 250 |
|
|
outfn (stream, "@%s", pregnames[rn]);
|
| 251 |
|
|
|
| 252 |
|
|
else if ((x & MODE) == ABS || (x & ABSJMP))
|
| 253 |
|
|
outfn (stream, "@0x%x:%d", (unsigned) cst, cstlen);
|
| 254 |
|
|
|
| 255 |
|
|
else if ((x & MODE) == MEMIND)
|
| 256 |
|
|
outfn (stream, "@@%d (0x%x)", cst, cst);
|
| 257 |
|
|
|
| 258 |
|
|
else if ((x & MODE) == VECIND)
|
| 259 |
|
|
{
|
| 260 |
|
|
/* FIXME Multiplier should be 2 or 4, depending on processor mode,
|
| 261 |
|
|
by which is meant "normal" vs. "middle", "advanced", "maximum". */
|
| 262 |
|
|
|
| 263 |
|
|
int offset = (cst + 0x80) * 4;
|
| 264 |
|
|
outfn (stream, "@@%d (0x%x)", offset, offset);
|
| 265 |
|
|
}
|
| 266 |
|
|
else if ((x & MODE) == PCREL)
|
| 267 |
|
|
{
|
| 268 |
|
|
if ((x & SIZE) == L_16 ||
|
| 269 |
|
|
(x & SIZE) == L_16U)
|
| 270 |
|
|
{
|
| 271 |
|
|
outfn (stream, ".%s%d (0x%lx)",
|
| 272 |
|
|
(short) cst > 0 ? "+" : "",
|
| 273 |
|
|
(short) cst,
|
| 274 |
|
|
(long)(addr + (short) cst + len));
|
| 275 |
|
|
}
|
| 276 |
|
|
else
|
| 277 |
|
|
{
|
| 278 |
|
|
outfn (stream, ".%s%d (0x%lx)",
|
| 279 |
|
|
(char) cst > 0 ? "+" : "",
|
| 280 |
|
|
(char) cst,
|
| 281 |
|
|
(long)(addr + (char) cst + len));
|
| 282 |
|
|
}
|
| 283 |
|
|
}
|
| 284 |
|
|
else if ((x & MODE) == DISP)
|
| 285 |
|
|
outfn (stream, "@(0x%x:%d,%s)", cst, cstlen, pregnames[rdisp_n]);
|
| 286 |
|
|
|
| 287 |
|
|
else if ((x & MODE) == INDEXB)
|
| 288 |
|
|
/* Always take low half of reg. */
|
| 289 |
|
|
outfn (stream, "@(0x%x:%d,%s.b)", cst, cstlen,
|
| 290 |
|
|
regnames[rdisp_n < 8 ? rdisp_n + 8 : rdisp_n]);
|
| 291 |
|
|
|
| 292 |
|
|
else if ((x & MODE) == INDEXW)
|
| 293 |
|
|
/* Always take low half of reg. */
|
| 294 |
|
|
outfn (stream, "@(0x%x:%d,%s.w)", cst, cstlen,
|
| 295 |
|
|
wregnames[rdisp_n < 8 ? rdisp_n : rdisp_n - 8]);
|
| 296 |
|
|
|
| 297 |
|
|
else if ((x & MODE) == INDEXL)
|
| 298 |
|
|
outfn (stream, "@(0x%x:%d,%s.l)", cst, cstlen, lregnames[rdisp_n]);
|
| 299 |
|
|
|
| 300 |
|
|
else if (x & CTRL)
|
| 301 |
|
|
outfn (stream, cregnames[rn]);
|
| 302 |
|
|
|
| 303 |
|
|
else if ((x & MODE) == CCR)
|
| 304 |
|
|
outfn (stream, "ccr");
|
| 305 |
|
|
|
| 306 |
|
|
else if ((x & MODE) == EXR)
|
| 307 |
|
|
outfn (stream, "exr");
|
| 308 |
|
|
|
| 309 |
|
|
else if ((x & MODE) == MACREG)
|
| 310 |
|
|
outfn (stream, "mac%c", cst ? 'l' : 'h');
|
| 311 |
|
|
|
| 312 |
|
|
else
|
| 313 |
|
|
/* xgettext:c-format */
|
| 314 |
|
|
outfn (stream, _("Hmmmm 0x%x"), x);
|
| 315 |
|
|
}
|
| 316 |
|
|
|
| 317 |
|
|
static unsigned int
|
| 318 |
|
|
bfd_h8_disassemble (bfd_vma addr, disassemble_info *info, int mach)
|
| 319 |
|
|
{
|
| 320 |
|
|
/* Find the first entry in the table for this opcode. */
|
| 321 |
|
|
int regno[3] = { 0, 0, 0 };
|
| 322 |
|
|
int dispregno[3] = { 0, 0, 0 };
|
| 323 |
|
|
int cst[3] = { 0, 0, 0 };
|
| 324 |
|
|
int cstlen[3] = { 0, 0, 0 };
|
| 325 |
|
|
static bfd_boolean init = 0;
|
| 326 |
|
|
const struct h8_instruction *qi;
|
| 327 |
|
|
char const **pregnames = mach != 0 ? lregnames : wregnames;
|
| 328 |
|
|
int status;
|
| 329 |
|
|
unsigned int l;
|
| 330 |
|
|
unsigned char data[MAX_CODE_NIBBLES];
|
| 331 |
|
|
void *stream = info->stream;
|
| 332 |
|
|
fprintf_ftype outfn = info->fprintf_func;
|
| 333 |
|
|
|
| 334 |
|
|
if (!init)
|
| 335 |
|
|
{
|
| 336 |
|
|
bfd_h8_disassemble_init ();
|
| 337 |
|
|
init = 1;
|
| 338 |
|
|
}
|
| 339 |
|
|
|
| 340 |
|
|
status = info->read_memory_func (addr, data, 2, info);
|
| 341 |
|
|
if (status != 0)
|
| 342 |
|
|
{
|
| 343 |
|
|
info->memory_error_func (status, addr, info);
|
| 344 |
|
|
return -1;
|
| 345 |
|
|
}
|
| 346 |
|
|
|
| 347 |
|
|
for (l = 2; status == 0 && l < sizeof (data) / 2; l += 2)
|
| 348 |
|
|
status = info->read_memory_func (addr + l, data + l, 2, info);
|
| 349 |
|
|
|
| 350 |
|
|
/* Find the exact opcode/arg combo. */
|
| 351 |
|
|
for (qi = h8_instructions; qi->opcode->name; qi++)
|
| 352 |
|
|
{
|
| 353 |
|
|
const struct h8_opcode *q = qi->opcode;
|
| 354 |
|
|
const op_type *nib = q->data.nib;
|
| 355 |
|
|
unsigned int len = 0;
|
| 356 |
|
|
|
| 357 |
|
|
while (1)
|
| 358 |
|
|
{
|
| 359 |
|
|
op_type looking_for = *nib;
|
| 360 |
|
|
int thisnib = data[len / 2];
|
| 361 |
|
|
int opnr;
|
| 362 |
|
|
|
| 363 |
|
|
thisnib = (len & 1) ? (thisnib & 0xf) : ((thisnib / 16) & 0xf);
|
| 364 |
|
|
opnr = ((looking_for & OP3) == OP3 ? 2
|
| 365 |
|
|
: (looking_for & DST) == DST ? 1 : 0);
|
| 366 |
|
|
|
| 367 |
|
|
if (looking_for < 16 && looking_for >= 0)
|
| 368 |
|
|
{
|
| 369 |
|
|
if (looking_for != thisnib)
|
| 370 |
|
|
goto fail;
|
| 371 |
|
|
}
|
| 372 |
|
|
else
|
| 373 |
|
|
{
|
| 374 |
|
|
if ((int) looking_for & (int) B31)
|
| 375 |
|
|
{
|
| 376 |
|
|
if (!((thisnib & 0x8) != 0))
|
| 377 |
|
|
goto fail;
|
| 378 |
|
|
|
| 379 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B31);
|
| 380 |
|
|
thisnib &= 0x7;
|
| 381 |
|
|
}
|
| 382 |
|
|
else if ((int) looking_for & (int) B30)
|
| 383 |
|
|
{
|
| 384 |
|
|
if (!((thisnib & 0x8) == 0))
|
| 385 |
|
|
goto fail;
|
| 386 |
|
|
|
| 387 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B30);
|
| 388 |
|
|
}
|
| 389 |
|
|
|
| 390 |
|
|
if ((int) looking_for & (int) B21)
|
| 391 |
|
|
{
|
| 392 |
|
|
if (!((thisnib & 0x4) != 0))
|
| 393 |
|
|
goto fail;
|
| 394 |
|
|
|
| 395 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B21);
|
| 396 |
|
|
thisnib &= 0xb;
|
| 397 |
|
|
}
|
| 398 |
|
|
else if ((int) looking_for & (int) B20)
|
| 399 |
|
|
{
|
| 400 |
|
|
if (!((thisnib & 0x4) == 0))
|
| 401 |
|
|
goto fail;
|
| 402 |
|
|
|
| 403 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B20);
|
| 404 |
|
|
}
|
| 405 |
|
|
if ((int) looking_for & (int) B11)
|
| 406 |
|
|
{
|
| 407 |
|
|
if (!((thisnib & 0x2) != 0))
|
| 408 |
|
|
goto fail;
|
| 409 |
|
|
|
| 410 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B11);
|
| 411 |
|
|
thisnib &= 0xd;
|
| 412 |
|
|
}
|
| 413 |
|
|
else if ((int) looking_for & (int) B10)
|
| 414 |
|
|
{
|
| 415 |
|
|
if (!((thisnib & 0x2) == 0))
|
| 416 |
|
|
goto fail;
|
| 417 |
|
|
|
| 418 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B10);
|
| 419 |
|
|
}
|
| 420 |
|
|
|
| 421 |
|
|
if ((int) looking_for & (int) B01)
|
| 422 |
|
|
{
|
| 423 |
|
|
if (!((thisnib & 0x1) != 0))
|
| 424 |
|
|
goto fail;
|
| 425 |
|
|
|
| 426 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B01);
|
| 427 |
|
|
thisnib &= 0xe;
|
| 428 |
|
|
}
|
| 429 |
|
|
else if ((int) looking_for & (int) B00)
|
| 430 |
|
|
{
|
| 431 |
|
|
if (!((thisnib & 0x1) == 0))
|
| 432 |
|
|
goto fail;
|
| 433 |
|
|
|
| 434 |
|
|
looking_for = (op_type) ((int) looking_for & ~(int) B00);
|
| 435 |
|
|
}
|
| 436 |
|
|
|
| 437 |
|
|
if (looking_for & IGNORE)
|
| 438 |
|
|
{
|
| 439 |
|
|
/* Hitachi has declared that IGNORE must be zero. */
|
| 440 |
|
|
if (thisnib != 0)
|
| 441 |
|
|
goto fail;
|
| 442 |
|
|
}
|
| 443 |
|
|
else if ((looking_for & MODE) == DATA)
|
| 444 |
|
|
{
|
| 445 |
|
|
; /* Skip embedded data. */
|
| 446 |
|
|
}
|
| 447 |
|
|
else if ((looking_for & MODE) == DBIT)
|
| 448 |
|
|
{
|
| 449 |
|
|
/* Exclude adds/subs by looking at bit 0 and 2, and
|
| 450 |
|
|
make sure the operand size, either w or l,
|
| 451 |
|
|
matches by looking at bit 1. */
|
| 452 |
|
|
if ((looking_for & 7) != (thisnib & 7))
|
| 453 |
|
|
goto fail;
|
| 454 |
|
|
|
| 455 |
|
|
cst[opnr] = (thisnib & 0x8) ? 2 : 1;
|
| 456 |
|
|
}
|
| 457 |
|
|
else if ((looking_for & MODE) == DISP
|
| 458 |
|
|
|| (looking_for & MODE) == ABS
|
| 459 |
|
|
|| (looking_for & MODE) == PCREL
|
| 460 |
|
|
|| (looking_for & MODE) == INDEXB
|
| 461 |
|
|
|| (looking_for & MODE) == INDEXW
|
| 462 |
|
|
|| (looking_for & MODE) == INDEXL)
|
| 463 |
|
|
{
|
| 464 |
|
|
extract_immediate (stream, looking_for, thisnib,
|
| 465 |
|
|
data + len / 2, cst + opnr,
|
| 466 |
|
|
cstlen + opnr, q);
|
| 467 |
|
|
/* Even address == bra, odd == bra/s. */
|
| 468 |
|
|
if (q->how == O (O_BRAS, SB))
|
| 469 |
|
|
cst[opnr] -= 1;
|
| 470 |
|
|
}
|
| 471 |
|
|
else if ((looking_for & MODE) == REG
|
| 472 |
|
|
|| (looking_for & MODE) == LOWREG
|
| 473 |
|
|
|| (looking_for & MODE) == IND
|
| 474 |
|
|
|| (looking_for & MODE) == PREINC
|
| 475 |
|
|
|| (looking_for & MODE) == POSTINC
|
| 476 |
|
|
|| (looking_for & MODE) == PREDEC
|
| 477 |
|
|
|| (looking_for & MODE) == POSTDEC)
|
| 478 |
|
|
{
|
| 479 |
|
|
regno[opnr] = thisnib;
|
| 480 |
|
|
}
|
| 481 |
|
|
else if (looking_for & CTRL) /* Control Register. */
|
| 482 |
|
|
{
|
| 483 |
|
|
thisnib &= 7;
|
| 484 |
|
|
if (((looking_for & MODE) == CCR && (thisnib != C_CCR))
|
| 485 |
|
|
|| ((looking_for & MODE) == EXR && (thisnib != C_EXR))
|
| 486 |
|
|
|| ((looking_for & MODE) == MACH && (thisnib != C_MACH))
|
| 487 |
|
|
|| ((looking_for & MODE) == MACL && (thisnib != C_MACL))
|
| 488 |
|
|
|| ((looking_for & MODE) == VBR && (thisnib != C_VBR))
|
| 489 |
|
|
|| ((looking_for & MODE) == SBR && (thisnib != C_SBR)))
|
| 490 |
|
|
goto fail;
|
| 491 |
|
|
if (((looking_for & MODE) == CCR_EXR
|
| 492 |
|
|
&& (thisnib != C_CCR && thisnib != C_EXR))
|
| 493 |
|
|
|| ((looking_for & MODE) == VBR_SBR
|
| 494 |
|
|
&& (thisnib != C_VBR && thisnib != C_SBR))
|
| 495 |
|
|
|| ((looking_for & MODE) == MACREG
|
| 496 |
|
|
&& (thisnib != C_MACH && thisnib != C_MACL)))
|
| 497 |
|
|
goto fail;
|
| 498 |
|
|
if (((looking_for & MODE) == CC_EX_VB_SB
|
| 499 |
|
|
&& (thisnib != C_CCR && thisnib != C_EXR
|
| 500 |
|
|
&& thisnib != C_VBR && thisnib != C_SBR)))
|
| 501 |
|
|
goto fail;
|
| 502 |
|
|
|
| 503 |
|
|
regno[opnr] = thisnib;
|
| 504 |
|
|
}
|
| 505 |
|
|
else if ((looking_for & SIZE) == L_5)
|
| 506 |
|
|
{
|
| 507 |
|
|
cst[opnr] = data[len / 2] & 31;
|
| 508 |
|
|
cstlen[opnr] = 5;
|
| 509 |
|
|
}
|
| 510 |
|
|
else if ((looking_for & SIZE) == L_4)
|
| 511 |
|
|
{
|
| 512 |
|
|
cst[opnr] = thisnib;
|
| 513 |
|
|
cstlen[opnr] = 4;
|
| 514 |
|
|
}
|
| 515 |
|
|
else if ((looking_for & SIZE) == L_16
|
| 516 |
|
|
|| (looking_for & SIZE) == L_16U)
|
| 517 |
|
|
{
|
| 518 |
|
|
cst[opnr] = (data[len / 2]) * 256 + data[(len + 2) / 2];
|
| 519 |
|
|
cstlen[opnr] = 16;
|
| 520 |
|
|
}
|
| 521 |
|
|
else if ((looking_for & MODE) == MEMIND)
|
| 522 |
|
|
{
|
| 523 |
|
|
cst[opnr] = data[1];
|
| 524 |
|
|
}
|
| 525 |
|
|
else if ((looking_for & MODE) == VECIND)
|
| 526 |
|
|
{
|
| 527 |
|
|
cst[opnr] = data[1] & 0x7f;
|
| 528 |
|
|
}
|
| 529 |
|
|
else if ((looking_for & SIZE) == L_32)
|
| 530 |
|
|
{
|
| 531 |
|
|
int i = len / 2;
|
| 532 |
|
|
|
| 533 |
|
|
cst[opnr] = ((data[i] << 24)
|
| 534 |
|
|
| (data[i + 1] << 16)
|
| 535 |
|
|
| (data[i + 2] << 8)
|
| 536 |
|
|
| (data[i + 3]));
|
| 537 |
|
|
|
| 538 |
|
|
cstlen[opnr] = 32;
|
| 539 |
|
|
}
|
| 540 |
|
|
else if ((looking_for & SIZE) == L_24)
|
| 541 |
|
|
{
|
| 542 |
|
|
int i = len / 2;
|
| 543 |
|
|
|
| 544 |
|
|
cst[opnr] =
|
| 545 |
|
|
(data[i] << 16) | (data[i + 1] << 8) | (data[i + 2]);
|
| 546 |
|
|
cstlen[opnr] = 24;
|
| 547 |
|
|
}
|
| 548 |
|
|
else if (looking_for & IGNORE)
|
| 549 |
|
|
{
|
| 550 |
|
|
;
|
| 551 |
|
|
}
|
| 552 |
|
|
else if (looking_for & DISPREG)
|
| 553 |
|
|
{
|
| 554 |
|
|
dispregno[opnr] = thisnib & 7;
|
| 555 |
|
|
}
|
| 556 |
|
|
else if ((looking_for & MODE) == KBIT)
|
| 557 |
|
|
{
|
| 558 |
|
|
switch (thisnib)
|
| 559 |
|
|
{
|
| 560 |
|
|
case 9:
|
| 561 |
|
|
cst[opnr] = 4;
|
| 562 |
|
|
break;
|
| 563 |
|
|
case 8:
|
| 564 |
|
|
cst[opnr] = 2;
|
| 565 |
|
|
break;
|
| 566 |
|
|
case 0:
|
| 567 |
|
|
cst[opnr] = 1;
|
| 568 |
|
|
break;
|
| 569 |
|
|
default:
|
| 570 |
|
|
goto fail;
|
| 571 |
|
|
}
|
| 572 |
|
|
}
|
| 573 |
|
|
else if ((looking_for & SIZE) == L_8)
|
| 574 |
|
|
{
|
| 575 |
|
|
cstlen[opnr] = 8;
|
| 576 |
|
|
cst[opnr] = data[len / 2];
|
| 577 |
|
|
}
|
| 578 |
|
|
else if ((looking_for & SIZE) == L_3
|
| 579 |
|
|
|| (looking_for & SIZE) == L_3NZ)
|
| 580 |
|
|
{
|
| 581 |
|
|
cst[opnr] = thisnib & 0x7;
|
| 582 |
|
|
if (cst[opnr] == 0 && (looking_for & SIZE) == L_3NZ)
|
| 583 |
|
|
goto fail;
|
| 584 |
|
|
}
|
| 585 |
|
|
else if ((looking_for & SIZE) == L_2)
|
| 586 |
|
|
{
|
| 587 |
|
|
cstlen[opnr] = 2;
|
| 588 |
|
|
cst[opnr] = thisnib & 0x3;
|
| 589 |
|
|
}
|
| 590 |
|
|
else if ((looking_for & MODE) == MACREG)
|
| 591 |
|
|
{
|
| 592 |
|
|
cst[opnr] = (thisnib == 3);
|
| 593 |
|
|
}
|
| 594 |
|
|
else if (looking_for == (op_type) E)
|
| 595 |
|
|
{
|
| 596 |
|
|
outfn (stream, "%s\t", q->name);
|
| 597 |
|
|
|
| 598 |
|
|
/* Gross. Disgusting. */
|
| 599 |
|
|
if (strcmp (q->name, "ldm.l") == 0)
|
| 600 |
|
|
{
|
| 601 |
|
|
int count, high;
|
| 602 |
|
|
|
| 603 |
|
|
count = (data[1] / 16) & 0x3;
|
| 604 |
|
|
high = regno[1];
|
| 605 |
|
|
|
| 606 |
|
|
outfn (stream, "@sp+,er%d-er%d", high - count, high);
|
| 607 |
|
|
return qi->length;
|
| 608 |
|
|
}
|
| 609 |
|
|
|
| 610 |
|
|
if (strcmp (q->name, "stm.l") == 0)
|
| 611 |
|
|
{
|
| 612 |
|
|
int count, low;
|
| 613 |
|
|
|
| 614 |
|
|
count = (data[1] / 16) & 0x3;
|
| 615 |
|
|
low = regno[0];
|
| 616 |
|
|
|
| 617 |
|
|
outfn (stream, "er%d-er%d,@-sp", low, low + count);
|
| 618 |
|
|
return qi->length;
|
| 619 |
|
|
}
|
| 620 |
|
|
if (strcmp (q->name, "rte/l") == 0
|
| 621 |
|
|
|| strcmp (q->name, "rts/l") == 0)
|
| 622 |
|
|
{
|
| 623 |
|
|
if (regno[0] == 0)
|
| 624 |
|
|
outfn (stream, "er%d", regno[1]);
|
| 625 |
|
|
else
|
| 626 |
|
|
outfn (stream, "er%d-er%d", regno[1] - regno[0],
|
| 627 |
|
|
regno[1]);
|
| 628 |
|
|
return qi->length;
|
| 629 |
|
|
}
|
| 630 |
|
|
if (CONST_STRNEQ (q->name, "mova"))
|
| 631 |
|
|
{
|
| 632 |
|
|
const op_type *args = q->args.nib;
|
| 633 |
|
|
|
| 634 |
|
|
if (args[1] == (op_type) E)
|
| 635 |
|
|
{
|
| 636 |
|
|
/* Short form. */
|
| 637 |
|
|
print_one_arg (info, addr, args[0], cst[0],
|
| 638 |
|
|
cstlen[0], dispregno[0], regno[0],
|
| 639 |
|
|
pregnames, qi->length);
|
| 640 |
|
|
outfn (stream, ",er%d", dispregno[0]);
|
| 641 |
|
|
}
|
| 642 |
|
|
else
|
| 643 |
|
|
{
|
| 644 |
|
|
outfn (stream, "@(0x%x:%d,", cst[0], cstlen[0]);
|
| 645 |
|
|
print_one_arg (info, addr, args[1], cst[1],
|
| 646 |
|
|
cstlen[1], dispregno[1], regno[1],
|
| 647 |
|
|
pregnames, qi->length);
|
| 648 |
|
|
outfn (stream, ".%c),",
|
| 649 |
|
|
(args[0] & MODE) == INDEXB ? 'b' : 'w');
|
| 650 |
|
|
print_one_arg (info, addr, args[2], cst[2],
|
| 651 |
|
|
cstlen[2], dispregno[2], regno[2],
|
| 652 |
|
|
pregnames, qi->length);
|
| 653 |
|
|
}
|
| 654 |
|
|
return qi->length;
|
| 655 |
|
|
}
|
| 656 |
|
|
/* Fill in the args. */
|
| 657 |
|
|
{
|
| 658 |
|
|
const op_type *args = q->args.nib;
|
| 659 |
|
|
int hadone = 0;
|
| 660 |
|
|
int nargs;
|
| 661 |
|
|
|
| 662 |
|
|
/* Special case handling for the adds and subs instructions
|
| 663 |
|
|
since in H8 mode thay can only take the r0-r7 registers
|
| 664 |
|
|
but in other (higher) modes they can take the er0-er7
|
| 665 |
|
|
registers as well. */
|
| 666 |
|
|
if (strcmp (qi->opcode->name, "adds") == 0
|
| 667 |
|
|
|| strcmp (qi->opcode->name, "subs") == 0)
|
| 668 |
|
|
{
|
| 669 |
|
|
outfn (stream, "#%d,%s", cst[0], pregnames[regno[1] & 0x7]);
|
| 670 |
|
|
return qi->length;
|
| 671 |
|
|
}
|
| 672 |
|
|
|
| 673 |
|
|
for (nargs = 0;
|
| 674 |
|
|
nargs < 3 && args[nargs] != (op_type) E;
|
| 675 |
|
|
nargs++)
|
| 676 |
|
|
{
|
| 677 |
|
|
int x = args[nargs];
|
| 678 |
|
|
|
| 679 |
|
|
if (hadone)
|
| 680 |
|
|
outfn (stream, ",");
|
| 681 |
|
|
|
| 682 |
|
|
print_one_arg (info, addr, x,
|
| 683 |
|
|
cst[nargs], cstlen[nargs],
|
| 684 |
|
|
dispregno[nargs], regno[nargs],
|
| 685 |
|
|
pregnames, qi->length);
|
| 686 |
|
|
|
| 687 |
|
|
hadone = 1;
|
| 688 |
|
|
}
|
| 689 |
|
|
}
|
| 690 |
|
|
|
| 691 |
|
|
return qi->length;
|
| 692 |
|
|
}
|
| 693 |
|
|
else
|
| 694 |
|
|
/* xgettext:c-format */
|
| 695 |
|
|
outfn (stream, _("Don't understand 0x%x \n"), looking_for);
|
| 696 |
|
|
}
|
| 697 |
|
|
|
| 698 |
|
|
len++;
|
| 699 |
|
|
nib++;
|
| 700 |
|
|
}
|
| 701 |
|
|
|
| 702 |
|
|
fail:
|
| 703 |
|
|
;
|
| 704 |
|
|
}
|
| 705 |
|
|
|
| 706 |
|
|
/* Fell off the end. */
|
| 707 |
|
|
outfn (stream, ".word\tH'%x,H'%x", data[0], data[1]);
|
| 708 |
|
|
return 2;
|
| 709 |
|
|
}
|
| 710 |
|
|
|
| 711 |
|
|
int
|
| 712 |
|
|
print_insn_h8300 (bfd_vma addr, disassemble_info *info)
|
| 713 |
|
|
{
|
| 714 |
|
|
return bfd_h8_disassemble (addr, info, 0);
|
| 715 |
|
|
}
|
| 716 |
|
|
|
| 717 |
|
|
int
|
| 718 |
|
|
print_insn_h8300h (bfd_vma addr, disassemble_info *info)
|
| 719 |
|
|
{
|
| 720 |
|
|
return bfd_h8_disassemble (addr, info, 1);
|
| 721 |
|
|
}
|
| 722 |
|
|
|
| 723 |
|
|
int
|
| 724 |
|
|
print_insn_h8300s (bfd_vma addr, disassemble_info *info)
|
| 725 |
|
|
{
|
| 726 |
|
|
return bfd_h8_disassemble (addr, info, 2);
|
| 727 |
|
|
}
|
