opcodes/ppc-dis.c

   1 /* ppc-dis.c -- Disassemble PowerPC instructions
   2    Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   3    2008, 2009, 2010 Free Software Foundation, Inc.
   4    Written by Ian Lance Taylor, Cygnus Support
   5
   6    This file is part of the GNU opcodes library.
   7
   8    This library 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 3, or (at your option)
  11    any later version.
  12
  13    It is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this file; see the file COPYING.  If not, write to the
  20    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #include <stdio.h>
  24 #include "sysdep.h"
  25 #include "dis-asm.h"
  26 #include "opintl.h"
  27 #include "opcode/ppc.h"
  28
  29 /* This file provides several disassembler functions, all of which use
  30    the disassembler interface defined in dis-asm.h.  Several functions
  31    are provided because this file handles disassembly for the PowerPC
  32    in both big and little endian mode and also for the POWER (RS/6000)
  33    chip.  */
  34 static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int,
  35                                ppc_cpu_t);
  36
  37 struct dis_private
  38 {
  39   /* Stash the result of parsing disassembler_options here.  */
  40   ppc_cpu_t dialect;
  41 };
  42
  43 #define POWERPC_DIALECT(INFO) \
  44   (((struct dis_private *) ((INFO)->private_data))->dialect)
  45
  46 struct ppc_mopt {
  47   const char *opt;
  48   ppc_cpu_t cpu;
  49   ppc_cpu_t sticky;
  50 };
  51
  52 struct ppc_mopt ppc_opts[] = {
  53   { "403",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_403
  54                 | PPC_OPCODE_32),
  55     0 },
  56   { "405",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_403
  57                 | PPC_OPCODE_405 | PPC_OPCODE_32),
  58     0 },
  59   { "440",     (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
  60                 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
  61     0 },
  62   { "464",     (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
  63                 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
  64     0 },
  65   { "476",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
  66                 | PPC_OPCODE_440 | PPC_OPCODE_476 | PPC_OPCODE_POWER4
  67                 | PPC_OPCODE_POWER5),
  68     0 },
  69   { "601",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_601
  70                 | PPC_OPCODE_32),
  71     0 },
  72   { "603",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
  73     0 },
  74   { "604",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
  75     0 },
  76   { "620",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64),
  77     0 },
  78   { "7400",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
  79                 | PPC_OPCODE_32),
  80     0 },
  81   { "7410",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
  82                 | PPC_OPCODE_32),
  83     0 },
  84   { "7450",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
  85                 | PPC_OPCODE_32),
  86     0 },
  87   { "7455",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
  88                 | PPC_OPCODE_32),
  89     0 },
  90   { "750cl",   (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS)
  91     , 0 },
  92   { "altivec", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
  93     PPC_OPCODE_ALTIVEC },
  94   { "any",     0,
  95     PPC_OPCODE_ANY },
  96   { "booke",   (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
  97     0 },
  98   { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
  99     0 },
 100   { "cell",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
 101                 | PPC_OPCODE_POWER4 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC),
 102     0 },
 103   { "com",     (PPC_OPCODE_COMMON | PPC_OPCODE_32),
 104     0 },
 105   { "e300",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
 106                 | PPC_OPCODE_E300),
 107     0 },
 108   { "e500",    (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
 109                 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
 110                 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
 111                 | PPC_OPCODE_E500MC),
 112     0 },
 113   { "e500mc",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
 114                 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
 115                 | PPC_OPCODE_E500MC),
 116     0 },
 117   { "e500mc64",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
 118                 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
 119                 | PPC_OPCODE_64 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
 120                 | PPC_OPCODE_POWER7),
 121     0 },
 122   { "e500x2",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
 123                 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
 124                 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
 125                 | PPC_OPCODE_E500MC),
 126     0 },
 127   { "efs",     (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
 128     0 },
 129   { "power4",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
 130                 | PPC_OPCODE_POWER4),
 131     0 },
 132   { "power5",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
 133                 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
 134     0 },
 135   { "power6",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
 136                 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
 137                 | PPC_OPCODE_ALTIVEC),
 138     0 },
 139   { "power7",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
 140                 | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
 141                 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC
 142                 | PPC_OPCODE_VSX),
 143     0 },
 144   { "ppc",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
 145     0 },
 146   { "ppc32",   (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
 147     0 },
 148   { "ppc64",   (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64),
 149     0 },
 150   { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64_BRIDGE
 151                     | PPC_OPCODE_64),
 152     0 },
 153   { "a2",      (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
 154                 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK
 155                 | PPC_OPCODE_64 | PPC_OPCODE_A2),
 156     0 },
 157   { "ppcps",   (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS),
 158     0 },
 159   { "pwr",     (PPC_OPCODE_POWER | PPC_OPCODE_32),
 160     0 },
 161   { "pwr2",    (PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32),
 162     0 },
 163   { "pwrx",    (PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32),
 164     0 },
 165   { "spe",     (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
 166     PPC_OPCODE_SPE },
 167   { "titan",   (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
 168                 | PPC_OPCODE_PMR | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN),
 169     0 },
 170   { "vsx",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
 171     PPC_OPCODE_VSX },
 172 };
 173
 174 /* Handle -m and -M options that set cpu type, and .machine arg.  */
 175
 176 ppc_cpu_t
 177 ppc_parse_cpu (ppc_cpu_t ppc_cpu, const char *arg)
 178 {
 179   /* Sticky bits.  */
 180   ppc_cpu_t retain_flags = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
 181                                       | PPC_OPCODE_SPE | PPC_OPCODE_ANY);
 182   unsigned int i;
 183
 184   for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
 185     if (strcmp (ppc_opts[i].opt, arg) == 0)
 186       {
 187         if (ppc_opts[i].sticky)
 188           {
 189             retain_flags |= ppc_opts[i].sticky;
 190             if ((ppc_cpu & ~(PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
 191                              | PPC_OPCODE_SPE | PPC_OPCODE_ANY)) != 0)
 192               break;
 193           }
 194         ppc_cpu = ppc_opts[i].cpu;
 195         break;
 196       }
 197   if (i >= sizeof (ppc_opts) / sizeof (ppc_opts[0]))
 198     return 0;
 199
 200   ppc_cpu |= retain_flags;
 201   return ppc_cpu;
 202 }
 203
 204 /* Determine which set of machines to disassemble for.  */
 205
 206 static int
 207 powerpc_init_dialect (struct disassemble_info *info)
 208 {
 209   ppc_cpu_t dialect = 0;
 210   char *arg;
 211   struct dis_private *priv = calloc (sizeof (*priv), 1);
 212
 213   if (priv == NULL)
 214     return FALSE;
 215
 216   arg = info->disassembler_options;
 217   while (arg != NULL)
 218     {
 219       ppc_cpu_t new_cpu = 0;
 220       char *end = strchr (arg, ',');
 221
 222       if (end != NULL)
 223         *end = 0;
 224
 225       if ((new_cpu = ppc_parse_cpu (dialect, arg)) != 0)
 226         dialect = new_cpu;
 227       else if (strcmp (arg, "32") == 0)
 228         {
 229           dialect &= ~PPC_OPCODE_64;
 230           dialect |= PPC_OPCODE_32;
 231         }
 232       else if (strcmp (arg, "64") == 0)
 233         {
 234           dialect |= PPC_OPCODE_64;
 235           dialect &= ~PPC_OPCODE_32;
 236         }
 237       else
 238         fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg);
 239
 240       if (end != NULL)
 241         *end++ = ',';
 242       arg = end;
 243     }
 244
 245   if ((dialect & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) == 0)
 246     {
 247       if (info->mach == bfd_mach_ppc64)
 248         dialect |= PPC_OPCODE_64;
 249       else
 250         dialect |= PPC_OPCODE_32;
 251       /* Choose a reasonable default.  */
 252       dialect |= (PPC_OPCODE_PPC | PPC_OPCODE_COMMON | PPC_OPCODE_CLASSIC
 253                   | PPC_OPCODE_601 | PPC_OPCODE_ALTIVEC);
 254     }
 255
 256   info->private_data = priv;
 257   POWERPC_DIALECT(info) = dialect;
 258
 259   return TRUE;
 260 }
 261
 262 /* Print a big endian PowerPC instruction.  */
 263
 264 int
 265 print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
 266 {
 267   if (info->private_data == NULL && !powerpc_init_dialect (info))
 268     return -1;
 269   return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info));
 270 }
 271
 272 /* Print a little endian PowerPC instruction.  */
 273
 274 int
 275 print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
 276 {
 277   if (info->private_data == NULL && !powerpc_init_dialect (info))
 278     return -1;
 279   return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info));
 280 }
 281
 282 /* Print a POWER (RS/6000) instruction.  */
 283
 284 int
 285 print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
 286 {
 287   return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
 288 }
 289
 290 /* Extract the operand value from the PowerPC or POWER instruction.  */
 291
 292 static long
 293 operand_value_powerpc (const struct powerpc_operand *operand,
 294                        unsigned long insn, ppc_cpu_t dialect)
 295 {
 296   long value;
 297   int invalid;
 298   /* Extract the value from the instruction.  */
 299   if (operand->extract)
 300     value = (*operand->extract) (insn, dialect, &invalid);
 301   else
 302     {
 303       value = (insn >> operand->shift) & operand->bitm;
 304       if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
 305         {
 306           /* BITM is always some number of zeros followed by some
 307              number of ones, followed by some numer of zeros.  */
 308           unsigned long top = operand->bitm;
 309           /* top & -top gives the rightmost 1 bit, so this
 310              fills in any trailing zeros.  */
 311           top |= (top & -top) - 1;
 312           top &= ~(top >> 1);
 313           value = (value ^ top) - top;
 314         }
 315     }
 316
 317   return value;
 318 }
 319
 320 /* Determine whether the optional operand(s) should be printed.  */
 321
 322 static int
 323 skip_optional_operands (const unsigned char *opindex,
 324                         unsigned long insn, ppc_cpu_t dialect)
 325 {
 326   const struct powerpc_operand *operand;
 327
 328   for (; *opindex != 0; opindex++)
 329     {
 330       operand = &powerpc_operands[*opindex];
 331       if ((operand->flags & PPC_OPERAND_NEXT) != 0
 332           || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
 333               && operand_value_powerpc (operand, insn, dialect) != 0))
 334         return 0;
 335     }
 336
 337   return 1;
 338 }
 339
 340 /* Print a PowerPC or POWER instruction.  */
 341
 342 static int
 343 print_insn_powerpc (bfd_vma memaddr,
 344                     struct disassemble_info *info,
 345                     int bigendian,
 346                     ppc_cpu_t dialect)
 347 {
 348   bfd_byte buffer[4];
 349   int status;
 350   unsigned long insn;
 351   const struct powerpc_opcode *opcode;
 352   const struct powerpc_opcode *opcode_end;
 353   unsigned long op;
 354   ppc_cpu_t dialect_orig = dialect;
 355
 356   status = (*info->read_memory_func) (memaddr, buffer, 4, info);
 357   if (status != 0)
 358     {
 359       (*info->memory_error_func) (status, memaddr, info);
 360       return -1;
 361     }
 362
 363   if (bigendian)
 364     insn = bfd_getb32 (buffer);
 365   else
 366     insn = bfd_getl32 (buffer);
 367
 368   /* Get the major opcode of the instruction.  */
 369   op = PPC_OP (insn);
 370
 371   /* Find the first match in the opcode table.  We could speed this up
 372      a bit by doing a binary search on the major opcode.  */
 373   opcode_end = powerpc_opcodes + powerpc_num_opcodes;
 374  again:
 375   for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++)
 376     {
 377       unsigned long table_op;
 378       const unsigned char *opindex;
 379       const struct powerpc_operand *operand;
 380       int invalid;
 381       int need_comma;
 382       int need_paren;
 383       int skip_optional;
 384
 385       table_op = PPC_OP (opcode->opcode);
 386       if (op < table_op)
 387         break;
 388       if (op > table_op)
 389         continue;
 390
 391       if ((insn & opcode->mask) != opcode->opcode
 392           || (opcode->flags & dialect) == 0
 393           || (opcode->deprecated & dialect_orig) != 0)
 394         continue;
 395
 396       /* Make two passes over the operands.  First see if any of them
 397          have extraction functions, and, if they do, make sure the
 398          instruction is valid.  */
 399       invalid = 0;
 400       for (opindex = opcode->operands; *opindex != 0; opindex++)
 401         {
 402           operand = powerpc_operands + *opindex;
 403           if (operand->extract)
 404             (*operand->extract) (insn, dialect, &invalid);
 405         }
 406       if (invalid)
 407         continue;
 408
 409       /* The instruction is valid.  */
 410       if (opcode->operands[0] != 0)
 411         (*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
 412       else
 413         (*info->fprintf_func) (info->stream, "%s", opcode->name);
 414
 415       /* Now extract and print the operands.  */
 416       need_comma = 0;
 417       need_paren = 0;
 418       skip_optional = -1;
 419       for (opindex = opcode->operands; *opindex != 0; opindex++)
 420         {
 421           long value;
 422
 423           operand = powerpc_operands + *opindex;
 424
 425           /* Operands that are marked FAKE are simply ignored.  We
 426              already made sure that the extract function considered
 427              the instruction to be valid.  */
 428           if ((operand->flags & PPC_OPERAND_FAKE) != 0)
 429             continue;
 430
 431           /* If all of the optional operands have the value zero,
 432              then don't print any of them.  */
 433           if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
 434             {
 435               if (skip_optional < 0)
 436                 skip_optional = skip_optional_operands (opindex, insn,
 437                                                         dialect);
 438               if (skip_optional)
 439                 continue;
 440             }
 441
 442           value = operand_value_powerpc (operand, insn, dialect);
 443
 444           if (need_comma)
 445             {
 446               (*info->fprintf_func) (info->stream, ",");
 447               need_comma = 0;
 448             }
 449
 450           /* Print the operand as directed by the flags.  */
 451           if ((operand->flags & PPC_OPERAND_GPR) != 0
 452               || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
 453             (*info->fprintf_func) (info->stream, "r%ld", value);
 454           else if ((operand->flags & PPC_OPERAND_FPR) != 0)
 455             (*info->fprintf_func) (info->stream, "f%ld", value);
 456           else if ((operand->flags & PPC_OPERAND_VR) != 0)
 457             (*info->fprintf_func) (info->stream, "v%ld", value);
 458           else if ((operand->flags & PPC_OPERAND_VSR) != 0)
 459             (*info->fprintf_func) (info->stream, "vs%ld", value);
 460           else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
 461             (*info->print_address_func) (memaddr + value, info);
 462           else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
 463             (*info->print_address_func) ((bfd_vma) value & 0xffffffff, info);
 464           else if ((operand->flags & PPC_OPERAND_FSL) != 0)
 465             (*info->fprintf_func) (info->stream, "fsl%ld", value);
 466           else if ((operand->flags & PPC_OPERAND_FCR) != 0)
 467             (*info->fprintf_func) (info->stream, "fcr%ld", value);
 468           else if ((operand->flags & PPC_OPERAND_UDI) != 0)
 469             (*info->fprintf_func) (info->stream, "%ld", value);
 470           else if ((operand->flags & PPC_OPERAND_CR) != 0
 471                    && (dialect & PPC_OPCODE_PPC) != 0)
 472             {
 473               if (operand->bitm == 7)
 474                 (*info->fprintf_func) (info->stream, "cr%ld", value);
 475               else
 476                 {
 477                   static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
 478                   int cr;
 479                   int cc;
 480
 481                   cr = value >> 2;
 482                   if (cr != 0)
 483                     (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
 484                   cc = value & 3;
 485                   (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
 486                 }
 487             }
 488           else
 489             (*info->fprintf_func) (info->stream, "%ld", value);
 490
 491           if (need_paren)
 492             {
 493               (*info->fprintf_func) (info->stream, ")");
 494               need_paren = 0;
 495             }
 496
 497           if ((operand->flags & PPC_OPERAND_PARENS) == 0)
 498             need_comma = 1;
 499           else
 500             {
 501               (*info->fprintf_func) (info->stream, "(");
 502               need_paren = 1;
 503             }
 504         }
 505
 506       /* We have found and printed an instruction; return.  */
 507       return 4;
 508     }
 509
 510   if ((dialect & PPC_OPCODE_ANY) != 0)
 511     {
 512       dialect = ~PPC_OPCODE_ANY;
 513       goto again;
 514     }
 515
 516   /* We could not find a match.  */
 517   (*info->fprintf_func) (info->stream, ".long 0x%lx", insn);
 518
 519   return 4;
 520 }
 521
 522 void
 523 print_ppc_disassembler_options (FILE *stream)
 524 {
 525   unsigned int i, col;
 526
 527   fprintf (stream, _("\n\
 528 The following PPC specific disassembler options are supported for use with\n\
 529 the -M switch:\n"));
 530
 531   for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
 532     {
 533       col += fprintf (stream, " %s,", ppc_opts[i].opt);
 534       if (col > 66)
 535         {
 536           fprintf (stream, "\n");
 537           col = 0;
 538         }
 539     }
 540   fprintf (stream, " 32, 64\n");
 541 }