1/* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
2   Copyright (C) 1989-2017 Free Software Foundation, Inc.
3
4   Contributed by the Center for Software Science at the
5   University of Utah (pa-gdb-bugs@cs.utah.edu).
6
7   This file is part of the GNU opcodes library.
8
9   This library is free software; you can redistribute it and/or modify
10   it under the terms of the GNU General Public License as published by
11   the Free Software Foundation; either version 3, or (at your option)
12   any later version.
13
14   It is distributed in the hope that it will be useful, but WITHOUT
15   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
17   License for more details.
18
19   You should have received a copy of the GNU General Public License
20   along with this program; if not, write to the Free Software
21   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22   MA 02110-1301, USA.  */
23
24#include "sysdep.h"
25#include "dis-asm.h"
26#include "libhppa.h"
27#include "opcode/hppa.h"
28
29/* Integer register names, indexed by the numbers which appear in the
30   opcodes.  */
31static const char *const reg_names[] =
32{
33  "flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9",
34  "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19",
35  "r20", "r21", "r22", "r23", "r24", "r25", "r26", "dp", "ret0", "ret1",
36  "sp", "r31"
37};
38
39/* Floating point register names, indexed by the numbers which appear in the
40   opcodes.  */
41static const char *const fp_reg_names[] =
42{
43  "fpsr", "fpe2", "fpe4", "fpe6",
44  "fr4", "fr5", "fr6", "fr7", "fr8",
45  "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
46  "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
47  "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"
48};
49
50typedef unsigned int CORE_ADDR;
51
52/* Get at various relevent fields of an instruction word.  */
53
54#define MASK_5  0x1f
55#define MASK_10 0x3ff
56#define MASK_11 0x7ff
57#define MASK_14 0x3fff
58#define MASK_16 0xffff
59#define MASK_21 0x1fffff
60
61/* These macros get bit fields using HP's numbering (MSB = 0).  */
62
63#define GET_FIELD(X, FROM, TO) \
64  ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
65
66#define GET_BIT(X, WHICH) \
67  GET_FIELD (X, WHICH, WHICH)
68
69/* Some of these have been converted to 2-d arrays because they
70   consume less storage this way.  If the maintenance becomes a
71   problem, convert them back to const 1-d pointer arrays.  */
72static const char *const control_reg[] =
73{
74  "rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
75  "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
76  "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
77  "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
78  "tr4", "tr5", "tr6", "tr7"
79};
80
81static const char *const compare_cond_names[] =
82{
83  "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
84  ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
85};
86static const char *const compare_cond_64_names[] =
87{
88  ",*", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
89  ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
90};
91static const char *const cmpib_cond_64_names[] =
92{
93  ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
94};
95static const char *const add_cond_names[] =
96{
97  "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
98  ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
99};
100static const char *const add_cond_64_names[] =
101{
102  ",*", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
103  ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
104};
105static const char *const wide_add_cond_names[] =
106{
107  "", ",=", ",<", ",<=", ",nuv", ",*=", ",*<", ",*<=",
108  ",tr", ",<>", ",>=", ",>", ",uv", ",*<>", ",*>=", ",*>"
109};
110static const char *const logical_cond_names[] =
111{
112  "", ",=", ",<", ",<=", 0, 0, 0, ",od",
113  ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
114static const char *const logical_cond_64_names[] =
115{
116  ",*", ",*=", ",*<", ",*<=", 0, 0, 0, ",*od",
117  ",*tr", ",*<>", ",*>=", ",*>", 0, 0, 0, ",*ev"};
118static const char *const unit_cond_names[] =
119{
120  "", ",swz", ",sbz", ",shz", ",sdc", ",swc", ",sbc", ",shc",
121  ",tr", ",nwz", ",nbz", ",nhz", ",ndc", ",nwc", ",nbc", ",nhc"
122};
123static const char *const unit_cond_64_names[] =
124{
125  ",*", ",*swz", ",*sbz", ",*shz", ",*sdc", ",*swc", ",*sbc", ",*shc",
126  ",*tr", ",*nwz", ",*nbz", ",*nhz", ",*ndc", ",*nwc", ",*nbc", ",*nhc"
127};
128static const char *const shift_cond_names[] =
129{
130  "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
131};
132static const char *const shift_cond_64_names[] =
133{
134  ",*", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
135};
136static const char *const bb_cond_64_names[] =
137{
138  ",*<", ",*>="
139};
140static const char *const index_compl_names[] = {"", ",m", ",s", ",sm"};
141static const char *const short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
142static const char *const short_bytes_compl_names[] =
143{
144  "", ",b,m", ",e", ",e,m"
145};
146static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
147static const char *const fcnv_fixed_names[] = {",w", ",dw", "", ",qw"};
148static const char *const fcnv_ufixed_names[] = {",uw", ",udw", "", ",uqw"};
149static const char *const float_comp_names[] =
150{
151  ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
152  ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
153  ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
154  ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
155};
156static const char *const signed_unsigned_names[] = {",u", ",s"};
157static const char *const mix_half_names[] = {",l", ",r"};
158static const char *const saturation_names[] = {",us", ",ss", 0, ""};
159static const char *const read_write_names[] = {",r", ",w"};
160static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
161
162/* For a bunch of different instructions form an index into a
163   completer name table.  */
164#define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
165			 GET_FIELD (insn, 18, 18) << 1)
166
167#define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
168			(GET_FIELD ((insn), 19, 19) ? 8 : 0))
169
170/* Utility function to print registers.  Put these first, so gcc's function
171   inlining can do its stuff.  */
172
173#define fputs_filtered(STR,F)	(*info->fprintf_func) (info->stream, "%s", STR)
174
175static void
176fput_reg (unsigned reg, disassemble_info *info)
177{
178  (*info->fprintf_func) (info->stream, "%s", reg ? reg_names[reg] : "r0");
179}
180
181static void
182fput_fp_reg (unsigned reg, disassemble_info *info)
183{
184  (*info->fprintf_func) (info->stream, "%s", reg ? fp_reg_names[reg] : "fr0");
185}
186
187static void
188fput_fp_reg_r (unsigned reg, disassemble_info *info)
189{
190  /* Special case floating point exception registers.  */
191  if (reg < 4)
192    (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
193  else
194    (*info->fprintf_func) (info->stream, "%sR",
195			   reg ? fp_reg_names[reg] : "fr0");
196}
197
198static void
199fput_creg (unsigned reg, disassemble_info *info)
200{
201  (*info->fprintf_func) (info->stream, "%s", control_reg[reg]);
202}
203
204/* Print constants with sign.  */
205
206static void
207fput_const (unsigned num, disassemble_info *info)
208{
209  if ((int) num < 0)
210    (*info->fprintf_func) (info->stream, "-%x", - (int) num);
211  else
212    (*info->fprintf_func) (info->stream, "%x", num);
213}
214
215/* Routines to extract various sized constants out of hppa
216   instructions.  */
217
218/* Extract a 3-bit space register number from a be, ble, mtsp or mfsp.  */
219static int
220extract_3 (unsigned word)
221{
222  return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
223}
224
225static int
226extract_5_load (unsigned word)
227{
228  return low_sign_extend (word >> 16 & MASK_5, 5);
229}
230
231/* Extract the immediate field from a st{bhw}s instruction.  */
232
233static int
234extract_5_store (unsigned word)
235{
236  return low_sign_extend (word & MASK_5, 5);
237}
238
239/* Extract the immediate field from a break instruction.  */
240
241static unsigned
242extract_5r_store (unsigned word)
243{
244  return (word & MASK_5);
245}
246
247/* Extract the immediate field from a {sr}sm instruction.  */
248
249static unsigned
250extract_5R_store (unsigned word)
251{
252  return (word >> 16 & MASK_5);
253}
254
255/* Extract the 10 bit immediate field from a {sr}sm instruction.  */
256
257static unsigned
258extract_10U_store (unsigned word)
259{
260  return (word >> 16 & MASK_10);
261}
262
263/* Extract the immediate field from a bb instruction.  */
264
265static unsigned
266extract_5Q_store (unsigned word)
267{
268  return (word >> 21 & MASK_5);
269}
270
271/* Extract an 11 bit immediate field.  */
272
273static int
274extract_11 (unsigned word)
275{
276  return low_sign_extend (word & MASK_11, 11);
277}
278
279/* Extract a 14 bit immediate field.  */
280
281static int
282extract_14 (unsigned word)
283{
284  return low_sign_extend (word & MASK_14, 14);
285}
286
287/* Extract a 16 bit immediate field (PA2.0 wide only).  */
288
289static int
290extract_16 (unsigned word)
291{
292  int m15, m0, m1;
293
294  m0 = GET_BIT (word, 16);
295  m1 = GET_BIT (word, 17);
296  m15 = GET_BIT (word, 31);
297  word = (word >> 1) & 0x1fff;
298  word = word | (m15 << 15) | ((m15 ^ m0) << 14) | ((m15 ^ m1) << 13);
299  return sign_extend (word, 16);
300}
301
302/* Extract a 21 bit constant.  */
303
304static int
305extract_21 (unsigned word)
306{
307  int val;
308
309  word &= MASK_21;
310  word <<= 11;
311  val = GET_FIELD (word, 20, 20);
312  val <<= 11;
313  val |= GET_FIELD (word, 9, 19);
314  val <<= 2;
315  val |= GET_FIELD (word, 5, 6);
316  val <<= 5;
317  val |= GET_FIELD (word, 0, 4);
318  val <<= 2;
319  val |= GET_FIELD (word, 7, 8);
320  return sign_extend (val, 21) << 11;
321}
322
323/* Extract a 12 bit constant from branch instructions.  */
324
325static int
326extract_12 (unsigned word)
327{
328  return sign_extend (GET_FIELD (word, 19, 28)
329		      | GET_FIELD (word, 29, 29) << 10
330		      | (word & 0x1) << 11, 12) << 2;
331}
332
333/* Extract a 17 bit constant from branch instructions, returning the
334   19 bit signed value.  */
335
336static int
337extract_17 (unsigned word)
338{
339  return sign_extend (GET_FIELD (word, 19, 28)
340		      | GET_FIELD (word, 29, 29) << 10
341		      | GET_FIELD (word, 11, 15) << 11
342		      | (word & 0x1) << 16, 17) << 2;
343}
344
345static int
346extract_22 (unsigned word)
347{
348  return sign_extend (GET_FIELD (word, 19, 28)
349		      | GET_FIELD (word, 29, 29) << 10
350		      | GET_FIELD (word, 11, 15) << 11
351		      | GET_FIELD (word, 6, 10) << 16
352		      | (word & 0x1) << 21, 22) << 2;
353}
354
355/* Print one instruction.  */
356
357int
358print_insn_hppa (bfd_vma memaddr, disassemble_info *info)
359{
360  bfd_byte buffer[4];
361  unsigned int insn, i;
362
363  {
364    int status =
365      (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
366    if (status != 0)
367      {
368	(*info->memory_error_func) (status, memaddr, info);
369	return -1;
370      }
371  }
372
373  insn = bfd_getb32 (buffer);
374
375  for (i = 0; i < NUMOPCODES; ++i)
376    {
377      const struct pa_opcode *opcode = &pa_opcodes[i];
378
379      if ((insn & opcode->mask) == opcode->match)
380	{
381	  const char *s;
382#ifndef BFD64
383	  if (opcode->arch == pa20w)
384	    continue;
385#endif
386	  (*info->fprintf_func) (info->stream, "%s", opcode->name);
387
388	  if (!strchr ("cfCY?-+nHNZFIuv{", opcode->args[0]))
389	    (*info->fprintf_func) (info->stream, " ");
390	  for (s = opcode->args; *s != '\0'; ++s)
391	    {
392	      switch (*s)
393		{
394		case 'x':
395		  fput_reg (GET_FIELD (insn, 11, 15), info);
396		  break;
397		case 'a':
398		case 'b':
399		  fput_reg (GET_FIELD (insn, 6, 10), info);
400		  break;
401		case '^':
402		  fput_creg (GET_FIELD (insn, 6, 10), info);
403		  break;
404		case 't':
405		  fput_reg (GET_FIELD (insn, 27, 31), info);
406		  break;
407
408		  /* Handle floating point registers.  */
409		case 'f':
410		  switch (*++s)
411		    {
412		    case 't':
413		      fput_fp_reg (GET_FIELD (insn, 27, 31), info);
414		      break;
415		    case 'T':
416		      if (GET_FIELD (insn, 25, 25))
417			fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
418		      else
419			fput_fp_reg (GET_FIELD (insn, 27, 31), info);
420		      break;
421		    case 'a':
422		      if (GET_FIELD (insn, 25, 25))
423			fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
424		      else
425			fput_fp_reg (GET_FIELD (insn, 6, 10), info);
426		      break;
427
428		      /* 'fA' will not generate a space before the regsiter
429			 name.  Normally that is fine.  Except that it
430			 causes problems with xmpyu which has no FP format
431			 completer.  */
432		    case 'X':
433		      fputs_filtered (" ", info);
434		      /* FALLTHRU */
435
436		    case 'A':
437		      if (GET_FIELD (insn, 24, 24))
438			fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
439		      else
440			fput_fp_reg (GET_FIELD (insn, 6, 10), info);
441		      break;
442		    case 'b':
443		      if (GET_FIELD (insn, 25, 25))
444			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
445		      else
446			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
447		      break;
448		    case 'B':
449		      if (GET_FIELD (insn, 19, 19))
450			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
451		      else
452			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
453		      break;
454		    case 'C':
455		      {
456			int reg = GET_FIELD (insn, 21, 22);
457			reg |= GET_FIELD (insn, 16, 18) << 2;
458			if (GET_FIELD (insn, 23, 23) != 0)
459			  fput_fp_reg_r (reg, info);
460			else
461			  fput_fp_reg (reg, info);
462			break;
463		      }
464		    case 'i':
465		      {
466			int reg = GET_FIELD (insn, 6, 10);
467
468			reg |= (GET_FIELD (insn, 26, 26) << 4);
469			fput_fp_reg (reg, info);
470			break;
471		      }
472		    case 'j':
473		      {
474			int reg = GET_FIELD (insn, 11, 15);
475
476			reg |= (GET_FIELD (insn, 26, 26) << 4);
477			fput_fp_reg (reg, info);
478			break;
479		      }
480		    case 'k':
481		      {
482			int reg = GET_FIELD (insn, 27, 31);
483
484			reg |= (GET_FIELD (insn, 26, 26) << 4);
485			fput_fp_reg (reg, info);
486			break;
487		      }
488		    case 'l':
489		      {
490			int reg = GET_FIELD (insn, 21, 25);
491
492			reg |= (GET_FIELD (insn, 26, 26) << 4);
493			fput_fp_reg (reg, info);
494			break;
495		      }
496		    case 'm':
497		      {
498			int reg = GET_FIELD (insn, 16, 20);
499
500			reg |= (GET_FIELD (insn, 26, 26) << 4);
501			fput_fp_reg (reg, info);
502			break;
503		      }
504
505		      /* 'fe' will not generate a space before the register
506			 name.  Normally that is fine.  Except that it
507			 causes problems with fstw fe,y(b) which has no FP
508			 format completer.  */
509		    case 'E':
510		      fputs_filtered (" ", info);
511		      /* FALLTHRU */
512
513		    case 'e':
514		      if (GET_FIELD (insn, 30, 30))
515			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
516		      else
517			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
518		      break;
519		    case 'x':
520		      fput_fp_reg (GET_FIELD (insn, 11, 15), info);
521		      break;
522		    }
523		  break;
524
525		case '5':
526		  fput_const (extract_5_load (insn), info);
527		  break;
528		case 's':
529		  {
530		    int space = GET_FIELD (insn, 16, 17);
531		    /* Zero means implicit addressing, not use of sr0.  */
532		    if (space != 0)
533		      (*info->fprintf_func) (info->stream, "sr%d", space);
534		  }
535		  break;
536
537		case 'S':
538		  (*info->fprintf_func) (info->stream, "sr%d",
539					 extract_3 (insn));
540		  break;
541
542		  /* Handle completers.  */
543		case 'c':
544		  switch (*++s)
545		    {
546		    case 'x':
547		      (*info->fprintf_func)
548			(info->stream, "%s",
549			 index_compl_names[GET_COMPL (insn)]);
550		      break;
551		    case 'X':
552		      (*info->fprintf_func)
553			(info->stream, "%s ",
554			 index_compl_names[GET_COMPL (insn)]);
555		      break;
556		    case 'm':
557		      (*info->fprintf_func)
558			(info->stream, "%s",
559			 short_ldst_compl_names[GET_COMPL (insn)]);
560		      break;
561		    case 'M':
562		      (*info->fprintf_func)
563			(info->stream, "%s ",
564			 short_ldst_compl_names[GET_COMPL (insn)]);
565		      break;
566		    case 'A':
567		      (*info->fprintf_func)
568			(info->stream, "%s ",
569			 short_bytes_compl_names[GET_COMPL (insn)]);
570		      break;
571		    case 's':
572		      (*info->fprintf_func)
573			(info->stream, "%s",
574			 short_bytes_compl_names[GET_COMPL (insn)]);
575		      break;
576		    case 'c':
577		    case 'C':
578		      switch (GET_FIELD (insn, 20, 21))
579			{
580			case 1:
581			  (*info->fprintf_func) (info->stream, ",bc ");
582			  break;
583			case 2:
584			  (*info->fprintf_func) (info->stream, ",sl ");
585			  break;
586			default:
587			  (*info->fprintf_func) (info->stream, " ");
588			}
589		      break;
590		    case 'd':
591		      switch (GET_FIELD (insn, 20, 21))
592			{
593			case 1:
594			  (*info->fprintf_func) (info->stream, ",co ");
595			  break;
596			default:
597			  (*info->fprintf_func) (info->stream, " ");
598			}
599		      break;
600		    case 'o':
601		      (*info->fprintf_func) (info->stream, ",o");
602		      break;
603		    case 'g':
604		      (*info->fprintf_func) (info->stream, ",gate");
605		      break;
606		    case 'p':
607		      (*info->fprintf_func) (info->stream, ",l,push");
608		      break;
609		    case 'P':
610		      (*info->fprintf_func) (info->stream, ",pop");
611		      break;
612		    case 'l':
613		    case 'L':
614		      (*info->fprintf_func) (info->stream, ",l");
615		      break;
616		    case 'w':
617		      (*info->fprintf_func)
618			(info->stream, "%s ",
619			 read_write_names[GET_FIELD (insn, 25, 25)]);
620		      break;
621		    case 'W':
622		      (*info->fprintf_func) (info->stream, ",w ");
623		      break;
624		    case 'r':
625		      if (GET_FIELD (insn, 23, 26) == 5)
626			(*info->fprintf_func) (info->stream, ",r");
627		      break;
628		    case 'Z':
629		      if (GET_FIELD (insn, 26, 26))
630			(*info->fprintf_func) (info->stream, ",m ");
631		      else
632			(*info->fprintf_func) (info->stream, " ");
633		      break;
634		    case 'i':
635		      if (GET_FIELD (insn, 25, 25))
636			(*info->fprintf_func) (info->stream, ",i");
637		      break;
638		    case 'z':
639		      if (!GET_FIELD (insn, 21, 21))
640			(*info->fprintf_func) (info->stream, ",z");
641		      break;
642		    case 'a':
643		      (*info->fprintf_func)
644			(info->stream, "%s",
645			 add_compl_names[GET_FIELD (insn, 20, 21)]);
646		      break;
647		    case 'Y':
648		      (*info->fprintf_func)
649			(info->stream, ",dc%s",
650			 add_compl_names[GET_FIELD (insn, 20, 21)]);
651		      break;
652		    case 'y':
653		      (*info->fprintf_func)
654			(info->stream, ",c%s",
655			 add_compl_names[GET_FIELD (insn, 20, 21)]);
656		      break;
657		    case 'v':
658		      if (GET_FIELD (insn, 20, 20))
659			(*info->fprintf_func) (info->stream, ",tsv");
660		      break;
661		    case 't':
662		      (*info->fprintf_func) (info->stream, ",tc");
663		      if (GET_FIELD (insn, 20, 20))
664			(*info->fprintf_func) (info->stream, ",tsv");
665		      break;
666		    case 'B':
667		      (*info->fprintf_func) (info->stream, ",db");
668		      if (GET_FIELD (insn, 20, 20))
669			(*info->fprintf_func) (info->stream, ",tsv");
670		      break;
671		    case 'b':
672		      (*info->fprintf_func) (info->stream, ",b");
673		      if (GET_FIELD (insn, 20, 20))
674			(*info->fprintf_func) (info->stream, ",tsv");
675		      break;
676		    case 'T':
677		      if (GET_FIELD (insn, 25, 25))
678			(*info->fprintf_func) (info->stream, ",tc");
679		      break;
680		    case 'S':
681		      /* EXTRD/W has a following condition.  */
682		      if (*(s + 1) == '?')
683			(*info->fprintf_func)
684			  (info->stream, "%s",
685			   signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
686		      else
687			(*info->fprintf_func)
688			  (info->stream, "%s ",
689			   signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
690		      break;
691		    case 'h':
692		      (*info->fprintf_func)
693			(info->stream, "%s",
694			 mix_half_names[GET_FIELD (insn, 17, 17)]);
695		      break;
696		    case 'H':
697		      (*info->fprintf_func)
698			(info->stream, "%s ",
699			 saturation_names[GET_FIELD (insn, 24, 25)]);
700		      break;
701		    case '*':
702		      (*info->fprintf_func)
703			(info->stream, ",%d%d%d%d ",
704			 GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
705			 GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
706		      break;
707
708		    case 'q':
709		      {
710			int m, a;
711
712			m = GET_FIELD (insn, 28, 28);
713			a = GET_FIELD (insn, 29, 29);
714
715			if (m && !a)
716			  fputs_filtered (",ma ", info);
717			else if (m && a)
718			  fputs_filtered (",mb ", info);
719			else
720			  fputs_filtered (" ", info);
721			break;
722		      }
723
724		    case 'J':
725		      {
726			int opc = GET_FIELD (insn, 0, 5);
727
728			if (opc == 0x16 || opc == 0x1e)
729			  {
730			    if (GET_FIELD (insn, 29, 29) == 0)
731			      fputs_filtered (",ma ", info);
732			    else
733			      fputs_filtered (",mb ", info);
734			  }
735			else
736			  fputs_filtered (" ", info);
737			break;
738		      }
739
740		    case 'e':
741		      {
742			int opc = GET_FIELD (insn, 0, 5);
743
744			if (opc == 0x13 || opc == 0x1b)
745			  {
746			    if (GET_FIELD (insn, 18, 18) == 1)
747			      fputs_filtered (",mb ", info);
748			    else
749			      fputs_filtered (",ma ", info);
750			  }
751			else if (opc == 0x17 || opc == 0x1f)
752			  {
753			    if (GET_FIELD (insn, 31, 31) == 1)
754			      fputs_filtered (",ma ", info);
755			    else
756			      fputs_filtered (",mb ", info);
757			  }
758			else
759			  fputs_filtered (" ", info);
760
761			break;
762		      }
763		    }
764		  break;
765
766		  /* Handle conditions.  */
767		case '?':
768		  {
769		    s++;
770		    switch (*s)
771		      {
772		      case 'f':
773			(*info->fprintf_func)
774			  (info->stream, "%s ",
775			   float_comp_names[GET_FIELD (insn, 27, 31)]);
776			break;
777
778			/* These four conditions are for the set of instructions
779			   which distinguish true/false conditions by opcode
780			   rather than by the 'f' bit (sigh): comb, comib,
781			   addb, addib.  */
782		      case 't':
783			fputs_filtered
784			  (compare_cond_names[GET_FIELD (insn, 16, 18)], info);
785			break;
786		      case 'n':
787			fputs_filtered
788			  (compare_cond_names[GET_FIELD (insn, 16, 18)
789					      + GET_FIELD (insn, 4, 4) * 8],
790			   info);
791			break;
792		      case 'N':
793			fputs_filtered
794			  (compare_cond_64_names[GET_FIELD (insn, 16, 18)
795						 + GET_FIELD (insn, 2, 2) * 8],
796			   info);
797			break;
798		      case 'Q':
799			fputs_filtered
800			  (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
801			   info);
802			break;
803		      case '@':
804			fputs_filtered
805			  (add_cond_names[GET_FIELD (insn, 16, 18)
806					  + GET_FIELD (insn, 4, 4) * 8],
807			   info);
808			break;
809		      case 's':
810			(*info->fprintf_func)
811			  (info->stream, "%s ",
812			   compare_cond_names[GET_COND (insn)]);
813			break;
814		      case 'S':
815			(*info->fprintf_func)
816			  (info->stream, "%s ",
817			   compare_cond_64_names[GET_COND (insn)]);
818			break;
819		      case 'a':
820			(*info->fprintf_func)
821			  (info->stream, "%s ",
822			   add_cond_names[GET_COND (insn)]);
823			break;
824		      case 'A':
825			(*info->fprintf_func)
826			  (info->stream, "%s ",
827			   add_cond_64_names[GET_COND (insn)]);
828			break;
829		      case 'd':
830			(*info->fprintf_func)
831			  (info->stream, "%s",
832			   add_cond_names[GET_FIELD (insn, 16, 18)]);
833			break;
834
835		      case 'W':
836			(*info->fprintf_func)
837			  (info->stream, "%s",
838			   wide_add_cond_names[GET_FIELD (insn, 16, 18) +
839					       GET_FIELD (insn, 4, 4) * 8]);
840			break;
841
842		      case 'l':
843			(*info->fprintf_func)
844			  (info->stream, "%s ",
845			   logical_cond_names[GET_COND (insn)]);
846			break;
847		      case 'L':
848			(*info->fprintf_func)
849			  (info->stream, "%s ",
850			   logical_cond_64_names[GET_COND (insn)]);
851			break;
852		      case 'u':
853			(*info->fprintf_func)
854			  (info->stream, "%s ",
855			   unit_cond_names[GET_COND (insn)]);
856			break;
857		      case 'U':
858			(*info->fprintf_func)
859			  (info->stream, "%s ",
860			   unit_cond_64_names[GET_COND (insn)]);
861			break;
862		      case 'y':
863		      case 'x':
864		      case 'b':
865			(*info->fprintf_func)
866			  (info->stream, "%s",
867			   shift_cond_names[GET_FIELD (insn, 16, 18)]);
868
869			/* If the next character in args is 'n', it will handle
870			   putting out the space.  */
871			if (s[1] != 'n')
872			  (*info->fprintf_func) (info->stream, " ");
873			break;
874		      case 'X':
875			(*info->fprintf_func)
876			  (info->stream, "%s ",
877			   shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
878			break;
879		      case 'B':
880			(*info->fprintf_func)
881			  (info->stream, "%s",
882			   bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
883
884			/* If the next character in args is 'n', it will handle
885			   putting out the space.  */
886			if (s[1] != 'n')
887			  (*info->fprintf_func) (info->stream, " ");
888			break;
889		      }
890		    break;
891		  }
892
893		case 'V':
894		  fput_const (extract_5_store (insn), info);
895		  break;
896		case 'r':
897		  fput_const (extract_5r_store (insn), info);
898		  break;
899		case 'R':
900		  fput_const (extract_5R_store (insn), info);
901		  break;
902		case 'U':
903		  fput_const (extract_10U_store (insn), info);
904		  break;
905		case 'B':
906		case 'Q':
907		  fput_const (extract_5Q_store (insn), info);
908		  break;
909		case 'i':
910		  fput_const (extract_11 (insn), info);
911		  break;
912		case 'j':
913		  fput_const (extract_14 (insn), info);
914		  break;
915		case 'k':
916		  fputs_filtered ("L%", info);
917		  fput_const (extract_21 (insn), info);
918		  break;
919		case '<':
920		case 'l':
921		  /* 16-bit long disp., PA2.0 wide only.  */
922		  fput_const (extract_16 (insn), info);
923		  break;
924		case 'n':
925		  if (insn & 0x2)
926		    (*info->fprintf_func) (info->stream, ",n ");
927		  else
928		    (*info->fprintf_func) (info->stream, " ");
929		  break;
930		case 'N':
931		  if ((insn & 0x20) && s[1])
932		    (*info->fprintf_func) (info->stream, ",n ");
933		  else if (insn & 0x20)
934		    (*info->fprintf_func) (info->stream, ",n");
935		  else if (s[1])
936		    (*info->fprintf_func) (info->stream, " ");
937		  break;
938		case 'w':
939		  (*info->print_address_func)
940		    (memaddr + 8 + extract_12 (insn), info);
941		  break;
942		case 'W':
943		  /* 17 bit PC-relative branch.  */
944		  (*info->print_address_func)
945		    ((memaddr + 8 + extract_17 (insn)), info);
946		  break;
947		case 'z':
948		  /* 17 bit displacement.  This is an offset from a register
949		     so it gets disasssembled as just a number, not any sort
950		     of address.  */
951		  fput_const (extract_17 (insn), info);
952		  break;
953
954		case 'Z':
955		  /* addil %r1 implicit output.  */
956		  fputs_filtered ("r1", info);
957		  break;
958
959		case 'Y':
960		  /* be,l %sr0,%r31 implicit output.  */
961		  fputs_filtered ("sr0,r31", info);
962		  break;
963
964		case '@':
965		  (*info->fprintf_func) (info->stream, "0");
966		  break;
967
968		case '.':
969		  (*info->fprintf_func) (info->stream, "%d",
970					 GET_FIELD (insn, 24, 25));
971		  break;
972		case '*':
973		  (*info->fprintf_func) (info->stream, "%d",
974					 GET_FIELD (insn, 22, 25));
975		  break;
976		case '!':
977		  fputs_filtered ("sar", info);
978		  break;
979		case 'p':
980		  (*info->fprintf_func) (info->stream, "%d",
981					 31 - GET_FIELD (insn, 22, 26));
982		  break;
983		case '~':
984		  {
985		    int num;
986		    num = GET_FIELD (insn, 20, 20) << 5;
987		    num |= GET_FIELD (insn, 22, 26);
988		    (*info->fprintf_func) (info->stream, "%d", 63 - num);
989		    break;
990		  }
991		case 'P':
992		  (*info->fprintf_func) (info->stream, "%d",
993					 GET_FIELD (insn, 22, 26));
994		  break;
995		case 'q':
996		  {
997		    int num;
998		    num = GET_FIELD (insn, 20, 20) << 5;
999		    num |= GET_FIELD (insn, 22, 26);
1000		    (*info->fprintf_func) (info->stream, "%d", num);
1001		    break;
1002		  }
1003		case 'T':
1004		  (*info->fprintf_func) (info->stream, "%d",
1005					 32 - GET_FIELD (insn, 27, 31));
1006		  break;
1007		case '%':
1008		  {
1009		    int num;
1010		    num = (GET_FIELD (insn, 23, 23) + 1) * 32;
1011		    num -= GET_FIELD (insn, 27, 31);
1012		    (*info->fprintf_func) (info->stream, "%d", num);
1013		    break;
1014		  }
1015		case '|':
1016		  {
1017		    int num;
1018		    num = (GET_FIELD (insn, 19, 19) + 1) * 32;
1019		    num -= GET_FIELD (insn, 27, 31);
1020		    (*info->fprintf_func) (info->stream, "%d", num);
1021		    break;
1022		  }
1023		case '$':
1024		  fput_const (GET_FIELD (insn, 20, 28), info);
1025		  break;
1026		case 'A':
1027		  fput_const (GET_FIELD (insn, 6, 18), info);
1028		  break;
1029		case 'D':
1030		  fput_const (GET_FIELD (insn, 6, 31), info);
1031		  break;
1032		case 'v':
1033		  (*info->fprintf_func) (info->stream, ",%d",
1034					 GET_FIELD (insn, 23, 25));
1035		  break;
1036		case 'O':
1037		  fput_const ((GET_FIELD (insn, 6,20) << 5 |
1038			       GET_FIELD (insn, 27, 31)), info);
1039		  break;
1040		case 'o':
1041		  fput_const (GET_FIELD (insn, 6, 20), info);
1042		  break;
1043		case '2':
1044		  fput_const ((GET_FIELD (insn, 6, 22) << 5 |
1045			       GET_FIELD (insn, 27, 31)), info);
1046		  break;
1047		case '1':
1048		  fput_const ((GET_FIELD (insn, 11, 20) << 5 |
1049			       GET_FIELD (insn, 27, 31)), info);
1050		  break;
1051		case '0':
1052		  fput_const ((GET_FIELD (insn, 16, 20) << 5 |
1053			       GET_FIELD (insn, 27, 31)), info);
1054		  break;
1055		case 'u':
1056		  (*info->fprintf_func) (info->stream, ",%d",
1057					 GET_FIELD (insn, 23, 25));
1058		  break;
1059		case 'F':
1060		  /* If no destination completer and not before a completer
1061		     for fcmp, need a space here.  */
1062		  if (s[1] == 'G' || s[1] == '?')
1063		    fputs_filtered
1064		      (float_format_names[GET_FIELD (insn, 19, 20)], info);
1065		  else
1066		    (*info->fprintf_func)
1067		      (info->stream, "%s ",
1068		       float_format_names[GET_FIELD (insn, 19, 20)]);
1069		  break;
1070		case 'G':
1071		  (*info->fprintf_func)
1072		    (info->stream, "%s ",
1073		     float_format_names[GET_FIELD (insn, 17, 18)]);
1074		  break;
1075		case 'H':
1076		  if (GET_FIELD (insn, 26, 26) == 1)
1077		    (*info->fprintf_func) (info->stream, "%s ",
1078					   float_format_names[0]);
1079		  else
1080		    (*info->fprintf_func) (info->stream, "%s ",
1081					   float_format_names[1]);
1082		  break;
1083		case 'I':
1084		  /* If no destination completer and not before a completer
1085		     for fcmp, need a space here.  */
1086		  if (s[1] == '?')
1087		    fputs_filtered
1088		      (float_format_names[GET_FIELD (insn, 20, 20)], info);
1089		  else
1090		    (*info->fprintf_func)
1091		      (info->stream, "%s ",
1092		       float_format_names[GET_FIELD (insn, 20, 20)]);
1093		  break;
1094
1095		case 'J':
1096		  fput_const (extract_14 (insn), info);
1097		  break;
1098
1099		case '#':
1100		  {
1101		    int sign = GET_FIELD (insn, 31, 31);
1102		    int imm10 = GET_FIELD (insn, 18, 27);
1103		    int disp;
1104
1105		    if (sign)
1106		      disp = (-1U << 10) | imm10;
1107		    else
1108		      disp = imm10;
1109
1110		    disp <<= 3;
1111		    fput_const (disp, info);
1112		    break;
1113		  }
1114		case 'K':
1115		case 'd':
1116		  {
1117		    int sign = GET_FIELD (insn, 31, 31);
1118		    int imm11 = GET_FIELD (insn, 18, 28);
1119		    int disp;
1120
1121		    if (sign)
1122		      disp = (-1U << 11) | imm11;
1123		    else
1124		      disp = imm11;
1125
1126		    disp <<= 2;
1127		    fput_const (disp, info);
1128		    break;
1129		  }
1130
1131		case '>':
1132		case 'y':
1133		  {
1134		    /* 16-bit long disp., PA2.0 wide only.  */
1135		    int disp = extract_16 (insn);
1136		    disp &= ~3;
1137		    fput_const (disp, info);
1138		    break;
1139		  }
1140
1141		case '&':
1142		  {
1143		    /* 16-bit long disp., PA2.0 wide only.  */
1144		    int disp = extract_16 (insn);
1145		    disp &= ~7;
1146		    fput_const (disp, info);
1147		    break;
1148		  }
1149
1150		case '_':
1151		  break; /* Dealt with by '{' */
1152
1153		case '{':
1154		  {
1155		    int sub = GET_FIELD (insn, 14, 16);
1156		    int df = GET_FIELD (insn, 17, 18);
1157		    int sf = GET_FIELD (insn, 19, 20);
1158		    const char * const * source = float_format_names;
1159		    const char * const * dest = float_format_names;
1160		    char *t = "";
1161
1162		    if (sub == 4)
1163		      {
1164			fputs_filtered (",UND ", info);
1165			break;
1166		      }
1167		    if ((sub & 3) == 3)
1168		      t = ",t";
1169		    if ((sub & 3) == 1)
1170		      source = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
1171		    if (sub & 2)
1172		      dest = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
1173
1174		    (*info->fprintf_func) (info->stream, "%s%s%s ",
1175					   t, source[sf], dest[df]);
1176		    break;
1177		  }
1178
1179		case 'm':
1180		  {
1181		    int y = GET_FIELD (insn, 16, 18);
1182
1183		    if (y != 1)
1184		      fput_const ((y ^ 1) - 1, info);
1185		  }
1186		  break;
1187
1188		case 'h':
1189		  {
1190		    int cbit;
1191
1192		    cbit = GET_FIELD (insn, 16, 18);
1193
1194		    if (cbit > 0)
1195		      (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
1196		    break;
1197		  }
1198
1199		case '=':
1200		  {
1201		    int cond = GET_FIELD (insn, 27, 31);
1202
1203		    switch (cond)
1204		      {
1205		      case  0: fputs_filtered (" ", info); break;
1206		      case  1: fputs_filtered ("acc ", info); break;
1207		      case  2: fputs_filtered ("rej ", info); break;
1208		      case  5: fputs_filtered ("acc8 ", info); break;
1209		      case  6: fputs_filtered ("rej8 ", info); break;
1210		      case  9: fputs_filtered ("acc6 ", info); break;
1211		      case 13: fputs_filtered ("acc4 ", info); break;
1212		      case 17: fputs_filtered ("acc2 ", info); break;
1213		      default: break;
1214		      }
1215		    break;
1216		  }
1217
1218		case 'X':
1219		  (*info->print_address_func)
1220		    (memaddr + 8 + extract_22 (insn), info);
1221		  break;
1222		case 'L':
1223		  fputs_filtered (",rp", info);
1224		  break;
1225		default:
1226		  (*info->fprintf_func) (info->stream, "%c", *s);
1227		  break;
1228		}
1229	    }
1230	  return sizeof (insn);
1231	}
1232    }
1233  (*info->fprintf_func) (info->stream, "#%8x", insn);
1234  return sizeof (insn);
1235}
1236