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2010-06-02 Quentin Neill <quentin.neill@amd.com>
[binutils.git] / opcodes / ppc-dis.c
blob1b60c05a13af4dda62b46c6e4c8e5ba986f5eda3
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 { "a2", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
93 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK
94 | PPC_OPCODE_64 | PPC_OPCODE_A2),
95 0 },
96 { "altivec", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
97 PPC_OPCODE_ALTIVEC },
98 { "any", 0,
99 PPC_OPCODE_ANY },
100 { "booke", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
101 0 },
102 { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
103 0 },
104 { "cell", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
105 | PPC_OPCODE_POWER4 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC),
106 0 },
107 { "com", (PPC_OPCODE_COMMON | PPC_OPCODE_32),
108 0 },
109 { "e300", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
110 | PPC_OPCODE_E300),
111 0 },
112 { "e500", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
113 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
114 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
115 | PPC_OPCODE_E500MC),
116 0 },
117 { "e500mc", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
118 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
119 | PPC_OPCODE_E500MC),
120 0 },
121 { "e500mc64", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
122 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
123 | PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER5
124 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7),
125 0 },
126 { "e500x2", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
127 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
128 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
129 | PPC_OPCODE_E500MC),
130 0 },
131 { "efs", (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
132 0 },
133 { "power4", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
134 | PPC_OPCODE_POWER4),
135 0 },
136 { "power5", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
137 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
138 0 },
139 { "power6", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
140 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
141 | PPC_OPCODE_ALTIVEC),
142 0 },
143 { "power7", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
144 | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
145 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC
146 | PPC_OPCODE_VSX),
147 0 },
148 { "ppc", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
149 0 },
150 { "ppc32", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
151 0 },
152 { "ppc64", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64),
153 0 },
154 { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64_BRIDGE
155 | PPC_OPCODE_64),
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 { "pwr4", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
164 | PPC_OPCODE_POWER4),
165 0 },
166 { "pwr5", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
167 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
168 0 },
169 { "pwr5x", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
170 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
171 0 },
172 { "pwr6", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
173 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
174 | PPC_OPCODE_ALTIVEC),
175 0 },
176 { "pwr7", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
177 | PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
178 | PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC
179 | PPC_OPCODE_VSX),
180 0 },
181 { "pwrx", (PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32),
182 0 },
183 { "spe", (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
184 PPC_OPCODE_SPE },
185 { "titan", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
186 | PPC_OPCODE_PMR | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN),
187 0 },
188 { "vsx", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
189 PPC_OPCODE_VSX },
190 };
191
192 /* Handle -m and -M options that set cpu type, and .machine arg. */
193
194 ppc_cpu_t
195 ppc_parse_cpu (ppc_cpu_t ppc_cpu, const char *arg)
196 {
197 /* Sticky bits. */
198 ppc_cpu_t retain_flags = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
199 | PPC_OPCODE_SPE | PPC_OPCODE_ANY);
200 unsigned int i;
201
202 for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
203 if (strcmp (ppc_opts[i].opt, arg) == 0)
204 {
205 if (ppc_opts[i].sticky)
206 {
207 retain_flags |= ppc_opts[i].sticky;
208 if ((ppc_cpu & ~(PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
209 | PPC_OPCODE_SPE | PPC_OPCODE_ANY)) != 0)
210 break;
211 }
212 ppc_cpu = ppc_opts[i].cpu;
213 break;
214 }
215 if (i >= sizeof (ppc_opts) / sizeof (ppc_opts[0]))
216 return 0;
217
218 ppc_cpu |= retain_flags;
219 return ppc_cpu;
220 }
221
222 /* Determine which set of machines to disassemble for. */
223
224 static int
225 powerpc_init_dialect (struct disassemble_info *info)
226 {
227 ppc_cpu_t dialect = 0;
228 char *arg;
229 struct dis_private *priv = calloc (sizeof (*priv), 1);
230
231 if (priv == NULL)
232 return FALSE;
233
234 arg = info->disassembler_options;
235 while (arg != NULL)
236 {
237 ppc_cpu_t new_cpu = 0;
238 char *end = strchr (arg, ',');
239
240 if (end != NULL)
241 *end = 0;
242
243 if ((new_cpu = ppc_parse_cpu (dialect, arg)) != 0)
244 dialect = new_cpu;
245 else if (strcmp (arg, "32") == 0)
246 {
247 dialect &= ~PPC_OPCODE_64;
248 dialect |= PPC_OPCODE_32;
249 }
250 else if (strcmp (arg, "64") == 0)
251 {
252 dialect |= PPC_OPCODE_64;
253 dialect &= ~PPC_OPCODE_32;
254 }
255 else
256 fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg);
257
258 if (end != NULL)
259 *end++ = ',';
260 arg = end;
261 }
262
263 if ((dialect & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) == 0)
264 {
265 if (info->mach == bfd_mach_ppc64)
266 dialect |= PPC_OPCODE_64;
267 else
268 dialect |= PPC_OPCODE_32;
269 /* Choose a reasonable default. */
270 dialect |= (PPC_OPCODE_PPC | PPC_OPCODE_COMMON | PPC_OPCODE_CLASSIC
271 | PPC_OPCODE_601 | PPC_OPCODE_ALTIVEC);
272 }
273
274 info->private_data = priv;
275 POWERPC_DIALECT(info) = dialect;
276
277 return TRUE;
278 }
279
280 /* Print a big endian PowerPC instruction. */
281
282 int
283 print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
284 {
285 if (info->private_data == NULL && !powerpc_init_dialect (info))
286 return -1;
287 return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info));
288 }
289
290 /* Print a little endian PowerPC instruction. */
291
292 int
293 print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
294 {
295 if (info->private_data == NULL && !powerpc_init_dialect (info))
296 return -1;
297 return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info));
298 }
299
300 /* Print a POWER (RS/6000) instruction. */
301
302 int
303 print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
304 {
305 return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
306 }
307
308 /* Extract the operand value from the PowerPC or POWER instruction. */
309
310 static long
311 operand_value_powerpc (const struct powerpc_operand *operand,
312 unsigned long insn, ppc_cpu_t dialect)
313 {
314 long value;
315 int invalid;
316 /* Extract the value from the instruction. */
317 if (operand->extract)
318 value = (*operand->extract) (insn, dialect, &invalid);
319 else
320 {
321 value = (insn >> operand->shift) & operand->bitm;
322 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
323 {
324 /* BITM is always some number of zeros followed by some
325 number of ones, followed by some numer of zeros. */
326 unsigned long top = operand->bitm;
327 /* top & -top gives the rightmost 1 bit, so this
328 fills in any trailing zeros. */
329 top |= (top & -top) - 1;
330 top &= ~(top >> 1);
331 value = (value ^ top) - top;
332 }
333 }
334
335 return value;
336 }
337
338 /* Determine whether the optional operand(s) should be printed. */
339
340 static int
341 skip_optional_operands (const unsigned char *opindex,
342 unsigned long insn, ppc_cpu_t dialect)
343 {
344 const struct powerpc_operand *operand;
345
346 for (; *opindex != 0; opindex++)
347 {
348 operand = &powerpc_operands[*opindex];
349 if ((operand->flags & PPC_OPERAND_NEXT) != 0
350 || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
351 && operand_value_powerpc (operand, insn, dialect) != 0))
352 return 0;
353 }
354
355 return 1;
356 }
357
358 /* Print a PowerPC or POWER instruction. */
359
360 static int
361 print_insn_powerpc (bfd_vma memaddr,
362 struct disassemble_info *info,
363 int bigendian,
364 ppc_cpu_t dialect)
365 {
366 bfd_byte buffer[4];
367 int status;
368 unsigned long insn;
369 const struct powerpc_opcode *opcode;
370 const struct powerpc_opcode *opcode_end;
371 unsigned long op;
372 ppc_cpu_t dialect_orig = dialect;
373
374 status = (*info->read_memory_func) (memaddr, buffer, 4, info);
375 if (status != 0)
376 {
377 (*info->memory_error_func) (status, memaddr, info);
378 return -1;
379 }
380
381 if (bigendian)
382 insn = bfd_getb32 (buffer);
383 else
384 insn = bfd_getl32 (buffer);
385
386 /* Get the major opcode of the instruction. */
387 op = PPC_OP (insn);
388
389 /* Find the first match in the opcode table. We could speed this up
390 a bit by doing a binary search on the major opcode. */
391 opcode_end = powerpc_opcodes + powerpc_num_opcodes;
392 again:
393 for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++)
394 {
395 unsigned long table_op;
396 const unsigned char *opindex;
397 const struct powerpc_operand *operand;
398 int invalid;
399 int need_comma;
400 int need_paren;
401 int skip_optional;
402
403 table_op = PPC_OP (opcode->opcode);
404 if (op < table_op)
405 break;
406 if (op > table_op)
407 continue;
408
409 if ((insn & opcode->mask) != opcode->opcode
410 || (opcode->flags & dialect) == 0
411 || (opcode->deprecated & dialect_orig) != 0)
412 continue;
413
414 /* Make two passes over the operands. First see if any of them
415 have extraction functions, and, if they do, make sure the
416 instruction is valid. */
417 invalid = 0;
418 for (opindex = opcode->operands; *opindex != 0; opindex++)
419 {
420 operand = powerpc_operands + *opindex;
421 if (operand->extract)
422 (*operand->extract) (insn, dialect, &invalid);
423 }
424 if (invalid)
425 continue;
426
427 /* The instruction is valid. */
428 if (opcode->operands[0] != 0)
429 (*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
430 else
431 (*info->fprintf_func) (info->stream, "%s", opcode->name);
432
433 /* Now extract and print the operands. */
434 need_comma = 0;
435 need_paren = 0;
436 skip_optional = -1;
437 for (opindex = opcode->operands; *opindex != 0; opindex++)
438 {
439 long value;
440
441 operand = powerpc_operands + *opindex;
442
443 /* Operands that are marked FAKE are simply ignored. We
444 already made sure that the extract function considered
445 the instruction to be valid. */
446 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
447 continue;
448
449 /* If all of the optional operands have the value zero,
450 then don't print any of them. */
451 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
452 {
453 if (skip_optional < 0)
454 skip_optional = skip_optional_operands (opindex, insn,
455 dialect);
456 if (skip_optional)
457 continue;
458 }
459
460 value = operand_value_powerpc (operand, insn, dialect);
461
462 if (need_comma)
463 {
464 (*info->fprintf_func) (info->stream, ",");
465 need_comma = 0;
466 }
467
468 /* Print the operand as directed by the flags. */
469 if ((operand->flags & PPC_OPERAND_GPR) != 0
470 || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
471 (*info->fprintf_func) (info->stream, "r%ld", value);
472 else if ((operand->flags & PPC_OPERAND_FPR) != 0)
473 (*info->fprintf_func) (info->stream, "f%ld", value);
474 else if ((operand->flags & PPC_OPERAND_VR) != 0)
475 (*info->fprintf_func) (info->stream, "v%ld", value);
476 else if ((operand->flags & PPC_OPERAND_VSR) != 0)
477 (*info->fprintf_func) (info->stream, "vs%ld", value);
478 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
479 (*info->print_address_func) (memaddr + value, info);
480 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
481 (*info->print_address_func) ((bfd_vma) value & 0xffffffff, info);
482 else if ((operand->flags & PPC_OPERAND_FSL) != 0)
483 (*info->fprintf_func) (info->stream, "fsl%ld", value);
484 else if ((operand->flags & PPC_OPERAND_FCR) != 0)
485 (*info->fprintf_func) (info->stream, "fcr%ld", value);
486 else if ((operand->flags & PPC_OPERAND_UDI) != 0)
487 (*info->fprintf_func) (info->stream, "%ld", value);
488 else if ((operand->flags & PPC_OPERAND_CR) != 0
489 && (dialect & PPC_OPCODE_PPC) != 0)
490 {
491 if (operand->bitm == 7)
492 (*info->fprintf_func) (info->stream, "cr%ld", value);
493 else
494 {
495 static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
496 int cr;
497 int cc;
498
499 cr = value >> 2;
500 if (cr != 0)
501 (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
502 cc = value & 3;
503 (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
504 }
505 }
506 else
507 (*info->fprintf_func) (info->stream, "%ld", value);
508
509 if (need_paren)
510 {
511 (*info->fprintf_func) (info->stream, ")");
512 need_paren = 0;
513 }
514
515 if ((operand->flags & PPC_OPERAND_PARENS) == 0)
516 need_comma = 1;
517 else
518 {
519 (*info->fprintf_func) (info->stream, "(");
520 need_paren = 1;
521 }
522 }
523
524 /* We have found and printed an instruction; return. */
525 return 4;
526 }
527
528 if ((dialect & PPC_OPCODE_ANY) != 0)
529 {
530 dialect = ~PPC_OPCODE_ANY;
531 goto again;
532 }
533
534 /* We could not find a match. */
535 (*info->fprintf_func) (info->stream, ".long 0x%lx", insn);
536
537 return 4;
538 }
539
540 void
541 print_ppc_disassembler_options (FILE *stream)
542 {
543 unsigned int i, col;
544
545 fprintf (stream, _("\n\
546 The following PPC specific disassembler options are supported for use with\n\
547 the -M switch:\n"));
548
549 for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
550 {
551 col += fprintf (stream, " %s,", ppc_opts[i].opt);
552 if (col > 66)
553 {
554 fprintf (stream, "\n");
555 col = 0;
556 }
557 }
558 fprintf (stream, " 32, 64\n");
559 }
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