[deliverable/binutils-gdb.git] / opcodes / ppc-dis.c

/* ppc-dis.c -- Disassemble PowerPC instructions
   Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
   2008, 2009, 2010 Free Software Foundation, Inc.
   Written by Ian Lance Taylor, Cygnus Support

   This file is part of the GNU opcodes library.

   This library is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.

   You should have received a copy of the GNU General Public License
   along with this file; see the file COPYING.  If not, write to the
   Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#include <stdio.h>
#include "sysdep.h"
#include "dis-asm.h"
#include "opintl.h"
#include "opcode/ppc.h"

/* This file provides several disassembler functions, all of which use
   the disassembler interface defined in dis-asm.h.  Several functions
   are provided because this file handles disassembly for the PowerPC
   in both big and little endian mode and also for the POWER (RS/6000)
   chip.  */
static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int,
			       ppc_cpu_t);

struct dis_private
{
  /* Stash the result of parsing disassembler_options here.  */
  ppc_cpu_t dialect;
};

#define POWERPC_DIALECT(INFO) \
  (((struct dis_private *) ((INFO)->private_data))->dialect)

struct ppc_mopt {
  const char *opt;
  ppc_cpu_t cpu;
  ppc_cpu_t sticky;
};

struct ppc_mopt ppc_opts[] = {
  { "403",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_403
		| PPC_OPCODE_32),
    0 },
  { "405",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_403
		| PPC_OPCODE_405 | PPC_OPCODE_32),
    0 },
  { "440",     (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
		| PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
    0 },
  { "464",     (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
		| PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI),
    0 },
  { "476",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
		| PPC_OPCODE_440 | PPC_OPCODE_476 | PPC_OPCODE_POWER4
		| PPC_OPCODE_POWER5),
    0 },
  { "601",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_601
		| PPC_OPCODE_32),
    0 },
  { "603",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
    0 },
  { "604",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
    0 },
  { "620",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64),
    0 },
  { "7400",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_32),
    0 },
  { "7410",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_32),
    0 },
  { "7450",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_32),
    0 },
  { "7455",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_32),
    0 },
  { "750cl",   (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS)
    , 0 },
  { "a2",      (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_CACHELCK
		| PPC_OPCODE_64 | PPC_OPCODE_A2),
    0 },
  { "altivec", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
    PPC_OPCODE_ALTIVEC },
  { "any",     0,
    PPC_OPCODE_ANY },
  { "booke",   (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
    0 },
  { "booke32", (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32),
    0 },
  { "cell",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC),
    0 },
  { "com",     (PPC_OPCODE_COMMON | PPC_OPCODE_32),
    0 },
  { "e300",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
		| PPC_OPCODE_E300),
    0 },
  { "e500",    (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
		| PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
		| PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
		| PPC_OPCODE_E500MC),
    0 },
  { "e500mc",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
		| PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
		| PPC_OPCODE_E500MC),
    0 },
  { "e500mc64",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
		| PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
		| PPC_OPCODE_E500MC | PPC_OPCODE_64 | PPC_OPCODE_POWER5
		| PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7),
    0 },
  { "e500x2",  (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
		| PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
		| PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK | PPC_OPCODE_RFMCI
		| PPC_OPCODE_E500MC),
    0 },
  { "efs",     (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
    0 },
  { "power4",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4),
    0 },
  { "power5",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
    0 },
  { "power6",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
		| PPC_OPCODE_ALTIVEC),
    0 },
  { "power7",  (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
		| PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
		| PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_VSX),
    0 },
  { "ppc",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
    0 },
  { "ppc32",   (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32),
    0 },
  { "ppc64",   (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64),
    0 },
  { "ppc64bridge", (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64_BRIDGE
		    | PPC_OPCODE_64),
    0 },
  { "ppcps",   (PPC_OPCODE_PPC | PPC_OPCODE_PPCPS),
    0 },
  { "pwr",     (PPC_OPCODE_POWER | PPC_OPCODE_32),
    0 },
  { "pwr2",    (PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32),
    0 },
  { "pwr4",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4),
    0 },
  { "pwr5",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
    0 },
  { "pwr5x",   (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5),
    0 },
  { "pwr6",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64
		| PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
		| PPC_OPCODE_ALTIVEC),
    0 },
  { "pwr7",    (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ISEL
		| PPC_OPCODE_64 | PPC_OPCODE_POWER4 | PPC_OPCODE_POWER5
		| PPC_OPCODE_POWER6 | PPC_OPCODE_POWER7 | PPC_OPCODE_ALTIVEC
		| PPC_OPCODE_VSX),
    0 },
  { "pwrx",    (PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32),
    0 },
  { "spe",     (PPC_OPCODE_PPC | PPC_OPCODE_EFS),
    PPC_OPCODE_SPE },
  { "titan",   (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32 
                | PPC_OPCODE_PMR | PPC_OPCODE_RFMCI | PPC_OPCODE_TITAN),
    0 },
  { "vsx",     (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC),
    PPC_OPCODE_VSX },
};

/* Handle -m and -M options that set cpu type, and .machine arg.  */

ppc_cpu_t
ppc_parse_cpu (ppc_cpu_t ppc_cpu, const char *arg)
{
  /* Sticky bits.  */
  ppc_cpu_t retain_flags = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
				      | PPC_OPCODE_SPE | PPC_OPCODE_ANY);
  unsigned int i;

  for (i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
    if (strcmp (ppc_opts[i].opt, arg) == 0)
      {
	if (ppc_opts[i].sticky)
	  {
	    retain_flags |= ppc_opts[i].sticky;
	    if ((ppc_cpu & ~(PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX
			     | PPC_OPCODE_SPE | PPC_OPCODE_ANY)) != 0)
	      break;
	  }
	ppc_cpu = ppc_opts[i].cpu;
	break;
      }
  if (i >= sizeof (ppc_opts) / sizeof (ppc_opts[0]))
    return 0;

  ppc_cpu |= retain_flags;
  return ppc_cpu;
}

/* Determine which set of machines to disassemble for.  */

static int
powerpc_init_dialect (struct disassemble_info *info)
{
  ppc_cpu_t dialect = 0;
  char *arg;
  struct dis_private *priv = calloc (sizeof (*priv), 1);

  if (priv == NULL)
    return FALSE;

  arg = info->disassembler_options;
  while (arg != NULL)
    {
      ppc_cpu_t new_cpu = 0;
      char *end = strchr (arg, ',');

      if (end != NULL)
	*end = 0;

      if ((new_cpu = ppc_parse_cpu (dialect, arg)) != 0)
	dialect = new_cpu;
      else if (strcmp (arg, "32") == 0)
	{
	  dialect &= ~PPC_OPCODE_64;
	  dialect |= PPC_OPCODE_32;
	}
      else if (strcmp (arg, "64") == 0)
	{
	  dialect |= PPC_OPCODE_64;
	  dialect &= ~PPC_OPCODE_32;
	}
      else
	fprintf (stderr, _("warning: ignoring unknown -M%s option\n"), arg);

      if (end != NULL)
	*end++ = ',';
      arg = end;
    }

  if ((dialect & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) == 0)
    {
      if (info->mach == bfd_mach_ppc64)
	dialect |= PPC_OPCODE_64;
      else
	dialect |= PPC_OPCODE_32;
      /* Choose a reasonable default.  */
      dialect |= (PPC_OPCODE_PPC | PPC_OPCODE_COMMON | PPC_OPCODE_CLASSIC
		  | PPC_OPCODE_601 | PPC_OPCODE_ALTIVEC);
    }

  info->private_data = priv;
  POWERPC_DIALECT(info) = dialect;

  return TRUE;
}

/* Print a big endian PowerPC instruction.  */

int
print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
  if (info->private_data == NULL && !powerpc_init_dialect (info))
    return -1;
  return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info));
}

/* Print a little endian PowerPC instruction.  */

int
print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
{
  if (info->private_data == NULL && !powerpc_init_dialect (info))
    return -1;
  return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info));
}

/* Print a POWER (RS/6000) instruction.  */

int
print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
{
  return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
}

/* Extract the operand value from the PowerPC or POWER instruction.  */

static long
operand_value_powerpc (const struct powerpc_operand *operand,
		       unsigned long insn, ppc_cpu_t dialect)
{
  long value;
  int invalid;
  /* Extract the value from the instruction.  */
  if (operand->extract)
    value = (*operand->extract) (insn, dialect, &invalid);
  else
    {
      value = (insn >> operand->shift) & operand->bitm;
      if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
	{
	  /* BITM is always some number of zeros followed by some
	     number of ones, followed by some numer of zeros.  */
	  unsigned long top = operand->bitm;
	  /* top & -top gives the rightmost 1 bit, so this
	     fills in any trailing zeros.  */
	  top |= (top & -top) - 1;
	  top &= ~(top >> 1);
	  value = (value ^ top) - top;
	}
    }

  return value;
}

/* Determine whether the optional operand(s) should be printed.  */

static int
skip_optional_operands (const unsigned char *opindex,
			unsigned long insn, ppc_cpu_t dialect)
{
  const struct powerpc_operand *operand;

  for (; *opindex != 0; opindex++)
    {
      operand = &powerpc_operands[*opindex];
      if ((operand->flags & PPC_OPERAND_NEXT) != 0
	  || ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
	      && operand_value_powerpc (operand, insn, dialect) != 0))
	return 0;
    }

  return 1;
}

/* Print a PowerPC or POWER instruction.  */

static int
print_insn_powerpc (bfd_vma memaddr,
		    struct disassemble_info *info,
		    int bigendian,
		    ppc_cpu_t dialect)
{
  bfd_byte buffer[4];
  int status;
  unsigned long insn;
  const struct powerpc_opcode *opcode;
  const struct powerpc_opcode *opcode_end;
  unsigned long op;
  ppc_cpu_t dialect_orig = dialect;

  status = (*info->read_memory_func) (memaddr, buffer, 4, info);
  if (status != 0)
    {
      (*info->memory_error_func) (status, memaddr, info);
      return -1;
    }

  if (bigendian)
    insn = bfd_getb32 (buffer);
  else
    insn = bfd_getl32 (buffer);

  /* Get the major opcode of the instruction.  */
  op = PPC_OP (insn);

  /* Find the first match in the opcode table.  We could speed this up
     a bit by doing a binary search on the major opcode.  */
  opcode_end = powerpc_opcodes + powerpc_num_opcodes;
 again:
  for (opcode = powerpc_opcodes; opcode < opcode_end; opcode++)
    {
      unsigned long table_op;
      const unsigned char *opindex;
      const struct powerpc_operand *operand;
      int invalid;
      int need_comma;
      int need_paren;
      int skip_optional;

      table_op = PPC_OP (opcode->opcode);
      if (op < table_op)
	break;
      if (op > table_op)
	continue;

      if ((insn & opcode->mask) != opcode->opcode
	  || (opcode->flags & dialect) == 0
	  || (opcode->deprecated & dialect_orig) != 0)
	continue;

      /* Make two passes over the operands.  First see if any of them
	 have extraction functions, and, if they do, make sure the
	 instruction is valid.  */
      invalid = 0;
      for (opindex = opcode->operands; *opindex != 0; opindex++)
	{
	  operand = powerpc_operands + *opindex;
	  if (operand->extract)
	    (*operand->extract) (insn, dialect, &invalid);
	}
      if (invalid)
	continue;

      /* The instruction is valid.  */
      if (opcode->operands[0] != 0)
	(*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
      else
	(*info->fprintf_func) (info->stream, "%s", opcode->name);

      /* Now extract and print the operands.  */
      need_comma = 0;
      need_paren = 0;
      skip_optional = -1;
      for (opindex = opcode->operands; *opindex != 0; opindex++)
	{
	  long value;

	  operand = powerpc_operands + *opindex;

	  /* Operands that are marked FAKE are simply ignored.  We
	     already made sure that the extract function considered
	     the instruction to be valid.  */
	  if ((operand->flags & PPC_OPERAND_FAKE) != 0)
	    continue;

	  /* If all of the optional operands have the value zero,
	     then don't print any of them.  */
	  if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
	    {
	      if (skip_optional < 0)
		skip_optional = skip_optional_operands (opindex, insn,
							dialect);
	      if (skip_optional)
		continue;
	    }

	  value = operand_value_powerpc (operand, insn, dialect);

	  if (need_comma)
	    {
	      (*info->fprintf_func) (info->stream, ",");
	      need_comma = 0;
	    }

	  /* Print the operand as directed by the flags.  */
	  if ((operand->flags & PPC_OPERAND_GPR) != 0
	      || ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
	    (*info->fprintf_func) (info->stream, "r%ld", value);
	  else if ((operand->flags & PPC_OPERAND_FPR) != 0)
	    (*info->fprintf_func) (info->stream, "f%ld", value);
	  else if ((operand->flags & PPC_OPERAND_VR) != 0)
	    (*info->fprintf_func) (info->stream, "v%ld", value);
	  else if ((operand->flags & PPC_OPERAND_VSR) != 0)
	    (*info->fprintf_func) (info->stream, "vs%ld", value);
	  else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0)
	    (*info->print_address_func) (memaddr + value, info);
	  else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
	    (*info->print_address_func) ((bfd_vma) value & 0xffffffff, info);
	  else if ((operand->flags & PPC_OPERAND_FSL) != 0) 
	    (*info->fprintf_func) (info->stream, "fsl%ld", value);
	  else if ((operand->flags & PPC_OPERAND_FCR) != 0)
	    (*info->fprintf_func) (info->stream, "fcr%ld", value);
	  else if ((operand->flags & PPC_OPERAND_UDI) != 0)
	    (*info->fprintf_func) (info->stream, "%ld", value);
	  else if ((operand->flags & PPC_OPERAND_CR) != 0
		   && (dialect & PPC_OPCODE_PPC) != 0)
	    {
	      if (operand->bitm == 7)
		(*info->fprintf_func) (info->stream, "cr%ld", value);
	      else
		{
		  static const char *cbnames[4] = { "lt", "gt", "eq", "so" };
		  int cr;
		  int cc;

		  cr = value >> 2;
		  if (cr != 0)
		    (*info->fprintf_func) (info->stream, "4*cr%d+", cr);
		  cc = value & 3;
		  (*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
		}
	    }
	  else
	    (*info->fprintf_func) (info->stream, "%ld", value);

	  if (need_paren)
	    {
	      (*info->fprintf_func) (info->stream, ")");
	      need_paren = 0;
	    }

	  if ((operand->flags & PPC_OPERAND_PARENS) == 0)
	    need_comma = 1;
	  else
	    {
	      (*info->fprintf_func) (info->stream, "(");
	      need_paren = 1;
	    }
	}

      /* We have found and printed an instruction; return.  */
      return 4;
    }

  if ((dialect & PPC_OPCODE_ANY) != 0)
    {
      dialect = ~PPC_OPCODE_ANY;
      goto again;
    }

  /* We could not find a match.  */
  (*info->fprintf_func) (info->stream, ".long 0x%lx", insn);

  return 4;
}

void
print_ppc_disassembler_options (FILE *stream)
{
  unsigned int i, col;

  fprintf (stream, _("\n\
The following PPC specific disassembler options are supported for use with\n\
the -M switch:\n"));

  for (col = 0, i = 0; i < sizeof (ppc_opts) / sizeof (ppc_opts[0]); i++)
    {
      col += fprintf (stream, " %s,", ppc_opts[i].opt);
      if (col > 66)
	{
	  fprintf (stream, "\n");
	  col = 0;
	}
    }
  fprintf (stream, " 32, 64\n");
}
Commit	Line	Data
252b5132	1	/* ppc-dis.c -- Disassemble PowerPC instructions
081ba1b3	2	Copyright 1994, 1995, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
0dc93057	3	2008, 2009, 2010 Free Software Foundation, Inc.
252b5132 RH	4	Written by Ian Lance Taylor, Cygnus Support
252b5132 RH	5
9b201bb5 NC	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. */
252b5132 RH	22
252b5132 RH	23	#include <stdio.h>
252b5132 RH	24	#include "sysdep.h"
252b5132 RH	25	#include "dis-asm.h"
69fe9ce5	26	#include "opintl.h"
252b5132 RH	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. */
fa452fa6 PB	34	static int print_insn_powerpc (bfd_vma, struct disassemble_info *, int,
fa452fa6 PB	35	ppc_cpu_t);
252b5132	36
fa452fa6 PB	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)
418c1742	45
69fe9ce5 AM	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 },
9fe54b1c PB	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 },
69fe9ce5 AM	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 },
cdc51b07 RS	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 },
69fe9ce5 AM	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 },
0dc93057 AM	121	{ "e500mc64", (PPC_OPCODE_PPC \| PPC_OPCODE_BOOKE \| PPC_OPCODE_ISEL
0dc93057 AM	122	\| PPC_OPCODE_PMR \| PPC_OPCODE_CACHELCK \| PPC_OPCODE_RFMCI
63d0fa4e AM	123	\| PPC_OPCODE_E500MC \| PPC_OPCODE_64 \| PPC_OPCODE_POWER5
63d0fa4e AM	124	\| PPC_OPCODE_POWER6 \| PPC_OPCODE_POWER7),
0dc93057	125	0 },
69fe9ce5 AM	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),
cdc51b07 RS	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),
69fe9ce5 AM	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 },
ce3d2015 AM	185	{ "titan", (PPC_OPCODE_PPC \| PPC_OPCODE_BOOKE \| PPC_OPCODE_32
	186	\| PPC_OPCODE_PMR \| PPC_OPCODE_RFMCI \| PPC_OPCODE_TITAN),
	187	0 },
69fe9ce5 AM	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. */
418c1742	223
661bd698	224	static int
fa452fa6	225	powerpc_init_dialect (struct disassemble_info *info)
418c1742	226	{
69fe9ce5 AM	227	ppc_cpu_t dialect = 0;
69fe9ce5 AM	228	char *arg;
fa452fa6 PB	229	struct dis_private priv = calloc (sizeof (priv), 1);
	230
	231	if (priv == NULL)
	232	return FALSE;
418c1742	233
69fe9ce5 AM	234	arg = info->disassembler_options;
	235	while (arg != NULL)
	236	{
	237	ppc_cpu_t new_cpu = 0;
	238	char *end = strchr (arg, ',');
9b4e5766	239
69fe9ce5 AM	240	if (end != NULL)
69fe9ce5 AM	241	*end = 0;
9b4e5766	242
69fe9ce5 AM	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);
9622b051	257
69fe9ce5 AM	258	if (end != NULL)
	259	*end++ = ',';
	260	arg = end;
	261	}
661bd698	262
70dc4e32	263	if ((dialect & ~(PPC_OPCODE_32 \| PPC_OPCODE_64)) == 0)
802a735e	264	{
70dc4e32 PB	265	if (info->mach == bfd_mach_ppc64)
	266	dialect \|= PPC_OPCODE_64;
	267	else
	268	dialect \|= PPC_OPCODE_32;
69fe9ce5 AM	269	/* Choose a reasonable default. */
	270	dialect \|= (PPC_OPCODE_PPC \| PPC_OPCODE_COMMON \| PPC_OPCODE_CLASSIC
	271	\| PPC_OPCODE_601 \| PPC_OPCODE_ALTIVEC);
802a735e AM	272	}
802a735e AM	273
fa452fa6 PB	274	info->private_data = priv;
	275	POWERPC_DIALECT(info) = dialect;
	276
	277	return TRUE;
418c1742 MG	278	}
	279
	280	/* Print a big endian PowerPC instruction. */
252b5132 RH	281
252b5132 RH	282	int
823bbe9d	283	print_insn_big_powerpc (bfd_vma memaddr, struct disassemble_info *info)
252b5132	284	{
fa452fa6 PB	285	if (info->private_data == NULL && !powerpc_init_dialect (info))
	286	return -1;
	287	return print_insn_powerpc (memaddr, info, 1, POWERPC_DIALECT(info));
252b5132 RH	288	}
252b5132 RH	289
418c1742	290	/* Print a little endian PowerPC instruction. */
252b5132 RH	291
252b5132 RH	292	int
823bbe9d	293	print_insn_little_powerpc (bfd_vma memaddr, struct disassemble_info *info)
252b5132	294	{
fa452fa6 PB	295	if (info->private_data == NULL && !powerpc_init_dialect (info))
	296	return -1;
	297	return print_insn_powerpc (memaddr, info, 0, POWERPC_DIALECT(info));
252b5132 RH	298	}
	299
	300	/* Print a POWER (RS/6000) instruction. */
	301
	302	int
823bbe9d	303	print_insn_rs6000 (bfd_vma memaddr, struct disassemble_info *info)
252b5132 RH	304	{
	305	return print_insn_powerpc (memaddr, info, 1, PPC_OPCODE_POWER);
	306	}
	307
ea192fa3 PB	308	/* Extract the operand value from the PowerPC or POWER instruction. */
	309
	310	static long
	311	operand_value_powerpc (const struct powerpc_operand *operand,
fa452fa6	312	unsigned long insn, ppc_cpu_t dialect)
ea192fa3 PB	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,
fa452fa6	342	unsigned long insn, ppc_cpu_t dialect)
ea192fa3 PB	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
252b5132 RH	358	/* Print a PowerPC or POWER instruction. */
	359
	360	static int
823bbe9d AM	361	print_insn_powerpc (bfd_vma memaddr,
	362	struct disassemble_info *info,
	363	int bigendian,
fa452fa6	364	ppc_cpu_t dialect)
252b5132 RH	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;
70dc4e32	372	ppc_cpu_t dialect_orig = dialect;
252b5132 RH	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;
661bd698	392	again:
252b5132 RH	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;
ea192fa3	401	int skip_optional;
252b5132 RH	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
21169fcf	410	\|\| (opcode->flags & dialect) == 0
70dc4e32	411	\|\| (opcode->deprecated & dialect_orig) != 0)
252b5132 RH	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)
802a735e	422	(*operand->extract) (insn, dialect, &invalid);
252b5132 RH	423	}
	424	if (invalid)
	425	continue;
	426
	427	/* The instruction is valid. */
252b5132	428	if (opcode->operands[0] != 0)
fdd12ef3 AM	429	(*info->fprintf_func) (info->stream, "%-7s ", opcode->name);
	430	else
	431	(*info->fprintf_func) (info->stream, "%s", opcode->name);
252b5132 RH	432
	433	/* Now extract and print the operands. */
	434	need_comma = 0;
	435	need_paren = 0;
ea192fa3	436	skip_optional = -1;
252b5132 RH	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
ea192fa3 PB	449	/* If all of the optional operands have the value zero,
ea192fa3 PB	450	then don't print any of them. */
65b650b4 AM	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	}
252b5132	459
ea192fa3 PB	460	value = operand_value_powerpc (operand, insn, dialect);
ea192fa3 PB	461
252b5132 RH	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. */
fdd12ef3 AM	469	if ((operand->flags & PPC_OPERAND_GPR) != 0
fdd12ef3 AM	470	\|\| ((operand->flags & PPC_OPERAND_GPR_0) != 0 && value != 0))
252b5132 RH	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);
786e2c0f C	474	else if ((operand->flags & PPC_OPERAND_VR) != 0)
786e2c0f C	475	(*info->fprintf_func) (info->stream, "v%ld", value);
9b4e5766 PB	476	else if ((operand->flags & PPC_OPERAND_VSR) != 0)
9b4e5766 PB	477	(*info->fprintf_func) (info->stream, "vs%ld", value);
252b5132 RH	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);
081ba1b3 AM	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);
70dc4e32 PB	488	else if ((operand->flags & PPC_OPERAND_CR) != 0
70dc4e32 PB	489	&& (dialect & PPC_OPCODE_PPC) != 0)
252b5132	490	{
b84bf58a	491	if (operand->bitm == 7)
0fd3a477	492	(*info->fprintf_func) (info->stream, "cr%ld", value);
252b5132 RH	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)
8b4fa155	501	(info->fprintf_func) (info->stream, "4cr%d+", cr);
252b5132	502	cc = value & 3;
8b4fa155	503	(*info->fprintf_func) (info->stream, "%s", cbnames[cc]);
252b5132 RH	504	}
252b5132 RH	505	}
70dc4e32 PB	506	else
70dc4e32 PB	507	(*info->fprintf_func) (info->stream, "%ld", value);
252b5132 RH	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
661bd698 AM	528	if ((dialect & PPC_OPCODE_ANY) != 0)
	529	{
	530	dialect = ~PPC_OPCODE_ANY;
	531	goto again;
	532	}
	533
252b5132 RH	534	/* We could not find a match. */
	535	(*info->fprintf_func) (info->stream, ".long 0x%lx", insn);
	536
	537	return 4;
	538	}
07dd56a9 NC	539
07dd56a9 NC	540	void
823bbe9d	541	print_ppc_disassembler_options (FILE *stream)
07dd56a9	542	{
69fe9ce5 AM	543	unsigned int i, col;
	544
	545	fprintf (stream, _("\n\
07dd56a9	546	The following PPC specific disassembler options are supported for use with\n\
69fe9ce5 AM	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");
07dd56a9	559	}