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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [opcodes/] [cgen-ibld.in] - Diff between revs 834 and 842

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/* Instruction building/extraction support for @arch@. -*- C -*-
/* Instruction building/extraction support for @arch@. -*- C -*-
   THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
   THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator.
   - the resultant file is machine generated, cgen-ibld.in isn't
   - the resultant file is machine generated, cgen-ibld.in isn't
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007,
   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007,
   2008, 2010  Free Software Foundation, Inc.
   2008, 2010  Free Software Foundation, Inc.
   This file is part of libopcodes.
   This file is part of libopcodes.
   This library is free software; you can redistribute it and/or modify
   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
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   the Free Software Foundation; either version 3, or (at your option)
   any later version.
   any later version.
   It is distributed in the hope that it will be useful, but WITHOUT
   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.
   License for more details.
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation, Inc.,
   along with this program; if not, write to the Free Software Foundation, Inc.,
   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
   51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
/* ??? Eventually more and more of this stuff can go to cpu-independent files.
   Keep that in mind.  */
   Keep that in mind.  */
#include "sysdep.h"
#include "sysdep.h"
#include 
#include 
#include "ansidecl.h"
#include "ansidecl.h"
#include "dis-asm.h"
#include "dis-asm.h"
#include "bfd.h"
#include "bfd.h"
#include "symcat.h"
#include "symcat.h"
#include "@prefix@-desc.h"
#include "@prefix@-desc.h"
#include "@prefix@-opc.h"
#include "@prefix@-opc.h"
#include "cgen/basic-modes.h"
#include "cgen/basic-modes.h"
#include "opintl.h"
#include "opintl.h"
#include "safe-ctype.h"
#include "safe-ctype.h"
#undef  min
#undef  min
#define min(a,b) ((a) < (b) ? (a) : (b))
#define min(a,b) ((a) < (b) ? (a) : (b))
#undef  max
#undef  max
#define max(a,b) ((a) > (b) ? (a) : (b))
#define max(a,b) ((a) > (b) ? (a) : (b))
/* Used by the ifield rtx function.  */
/* Used by the ifield rtx function.  */
#define FLD(f) (fields->f)
#define FLD(f) (fields->f)
static const char * insert_normal
static const char * insert_normal
  (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
  (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int,
   unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
   unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR);
static const char * insert_insn_normal
static const char * insert_insn_normal
  (CGEN_CPU_DESC, const CGEN_INSN *,
  (CGEN_CPU_DESC, const CGEN_INSN *,
   CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
   CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
static int extract_normal
static int extract_normal
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT,
   unsigned int, unsigned int, unsigned int, unsigned int,
   unsigned int, unsigned int, unsigned int, unsigned int,
   unsigned int, unsigned int, bfd_vma, long *);
   unsigned int, unsigned int, bfd_vma, long *);
static int extract_insn_normal
static int extract_insn_normal
  (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
  (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *,
   CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
   CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
#if CGEN_INT_INSN_P
#if CGEN_INT_INSN_P
static void put_insn_int_value
static void put_insn_int_value
  (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
  (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT);
#endif
#endif
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
static CGEN_INLINE void insert_1
static CGEN_INLINE void insert_1
  (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
  (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
static CGEN_INLINE int fill_cache
static CGEN_INLINE int fill_cache
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *,  int, int, bfd_vma);
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *,  int, int, bfd_vma);
static CGEN_INLINE long extract_1
static CGEN_INLINE long extract_1
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
  (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
#endif
#endif


/* Operand insertion.  */
/* Operand insertion.  */
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
/* Subroutine of insert_normal.  */
/* Subroutine of insert_normal.  */
static CGEN_INLINE void
static CGEN_INLINE void
insert_1 (CGEN_CPU_DESC cd,
insert_1 (CGEN_CPU_DESC cd,
          unsigned long value,
          unsigned long value,
          int start,
          int start,
          int length,
          int length,
          int word_length,
          int word_length,
          unsigned char *bufp)
          unsigned char *bufp)
{
{
  unsigned long x,mask;
  unsigned long x,mask;
  int shift;
  int shift;
  x = cgen_get_insn_value (cd, bufp, word_length);
  x = cgen_get_insn_value (cd, bufp, word_length);
  /* Written this way to avoid undefined behaviour.  */
  /* Written this way to avoid undefined behaviour.  */
  mask = (((1L << (length - 1)) - 1) << 1) | 1;
  mask = (((1L << (length - 1)) - 1) << 1) | 1;
  if (CGEN_INSN_LSB0_P)
  if (CGEN_INSN_LSB0_P)
    shift = (start + 1) - length;
    shift = (start + 1) - length;
  else
  else
    shift = (word_length - (start + length));
    shift = (word_length - (start + length));
  x = (x & ~(mask << shift)) | ((value & mask) << shift);
  x = (x & ~(mask << shift)) | ((value & mask) << shift);
  cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x);
  cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x);
}
}
#endif /* ! CGEN_INT_INSN_P */
#endif /* ! CGEN_INT_INSN_P */
/* Default insertion routine.
/* Default insertion routine.
   ATTRS is a mask of the boolean attributes.
   ATTRS is a mask of the boolean attributes.
   WORD_OFFSET is the offset in bits from the start of the insn of the value.
   WORD_OFFSET is the offset in bits from the start of the insn of the value.
   WORD_LENGTH is the length of the word in bits in which the value resides.
   WORD_LENGTH is the length of the word in bits in which the value resides.
   START is the starting bit number in the word, architecture origin.
   START is the starting bit number in the word, architecture origin.
   LENGTH is the length of VALUE in bits.
   LENGTH is the length of VALUE in bits.
   TOTAL_LENGTH is the total length of the insn in bits.
   TOTAL_LENGTH is the total length of the insn in bits.
   The result is an error message or NULL if success.  */
   The result is an error message or NULL if success.  */
/* ??? This duplicates functionality with bfd's howto table and
/* ??? This duplicates functionality with bfd's howto table and
   bfd_install_relocation.  */
   bfd_install_relocation.  */
/* ??? This doesn't handle bfd_vma's.  Create another function when
/* ??? This doesn't handle bfd_vma's.  Create another function when
   necessary.  */
   necessary.  */
static const char *
static const char *
insert_normal (CGEN_CPU_DESC cd,
insert_normal (CGEN_CPU_DESC cd,
               long value,
               long value,
               unsigned int attrs,
               unsigned int attrs,
               unsigned int word_offset,
               unsigned int word_offset,
               unsigned int start,
               unsigned int start,
               unsigned int length,
               unsigned int length,
               unsigned int word_length,
               unsigned int word_length,
               unsigned int total_length,
               unsigned int total_length,
               CGEN_INSN_BYTES_PTR buffer)
               CGEN_INSN_BYTES_PTR buffer)
{
{
  static char errbuf[100];
  static char errbuf[100];
  /* Written this way to avoid undefined behaviour.  */
  /* Written this way to avoid undefined behaviour.  */
  unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
  unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
  /* If LENGTH is zero, this operand doesn't contribute to the value.  */
  /* If LENGTH is zero, this operand doesn't contribute to the value.  */
  if (length == 0)
  if (length == 0)
    return NULL;
    return NULL;
  if (word_length > 8 * sizeof (CGEN_INSN_INT))
  if (word_length > 8 * sizeof (CGEN_INSN_INT))
    abort ();
    abort ();
  /* For architectures with insns smaller than the base-insn-bitsize,
  /* For architectures with insns smaller than the base-insn-bitsize,
     word_length may be too big.  */
     word_length may be too big.  */
  if (cd->min_insn_bitsize < cd->base_insn_bitsize)
  if (cd->min_insn_bitsize < cd->base_insn_bitsize)
    {
    {
      if (word_offset == 0
      if (word_offset == 0
          && word_length > total_length)
          && word_length > total_length)
        word_length = total_length;
        word_length = total_length;
    }
    }
  /* Ensure VALUE will fit.  */
  /* Ensure VALUE will fit.  */
  if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
  if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
    {
    {
      long minval = - (1L << (length - 1));
      long minval = - (1L << (length - 1));
      unsigned long maxval = mask;
      unsigned long maxval = mask;
      if ((value > 0 && (unsigned long) value > maxval)
      if ((value > 0 && (unsigned long) value > maxval)
          || value < minval)
          || value < minval)
        {
        {
          /* xgettext:c-format */
          /* xgettext:c-format */
          sprintf (errbuf,
          sprintf (errbuf,
                   _("operand out of range (%ld not between %ld and %lu)"),
                   _("operand out of range (%ld not between %ld and %lu)"),
                   value, minval, maxval);
                   value, minval, maxval);
          return errbuf;
          return errbuf;
        }
        }
    }
    }
  else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
  else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
    {
    {
      unsigned long maxval = mask;
      unsigned long maxval = mask;
      unsigned long val = (unsigned long) value;
      unsigned long val = (unsigned long) value;
      /* For hosts with a word size > 32 check to see if value has been sign
      /* For hosts with a word size > 32 check to see if value has been sign
         extended beyond 32 bits.  If so then ignore these higher sign bits
         extended beyond 32 bits.  If so then ignore these higher sign bits
         as the user is attempting to store a 32-bit signed value into an
         as the user is attempting to store a 32-bit signed value into an
         unsigned 32-bit field which is allowed.  */
         unsigned 32-bit field which is allowed.  */
      if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
      if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
        val &= 0xFFFFFFFF;
        val &= 0xFFFFFFFF;
      if (val > maxval)
      if (val > maxval)
        {
        {
          /* xgettext:c-format */
          /* xgettext:c-format */
          sprintf (errbuf,
          sprintf (errbuf,
                   _("operand out of range (0x%lx not between 0 and 0x%lx)"),
                   _("operand out of range (0x%lx not between 0 and 0x%lx)"),
                   val, maxval);
                   val, maxval);
          return errbuf;
          return errbuf;
        }
        }
    }
    }
  else
  else
    {
    {
      if (! cgen_signed_overflow_ok_p (cd))
      if (! cgen_signed_overflow_ok_p (cd))
        {
        {
          long minval = - (1L << (length - 1));
          long minval = - (1L << (length - 1));
          long maxval =   (1L << (length - 1)) - 1;
          long maxval =   (1L << (length - 1)) - 1;
          if (value < minval || value > maxval)
          if (value < minval || value > maxval)
            {
            {
              sprintf
              sprintf
                /* xgettext:c-format */
                /* xgettext:c-format */
                (errbuf, _("operand out of range (%ld not between %ld and %ld)"),
                (errbuf, _("operand out of range (%ld not between %ld and %ld)"),
                 value, minval, maxval);
                 value, minval, maxval);
              return errbuf;
              return errbuf;
            }
            }
        }
        }
    }
    }
#if CGEN_INT_INSN_P
#if CGEN_INT_INSN_P
  {
  {
    int shift;
    int shift;
    if (CGEN_INSN_LSB0_P)
    if (CGEN_INSN_LSB0_P)
      shift = (word_offset + start + 1) - length;
      shift = (word_offset + start + 1) - length;
    else
    else
      shift = total_length - (word_offset + start + length);
      shift = total_length - (word_offset + start + length);
    *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
    *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
  }
  }
#else /* ! CGEN_INT_INSN_P */
#else /* ! CGEN_INT_INSN_P */
  {
  {
    unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
    unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
    insert_1 (cd, value, start, length, word_length, bufp);
    insert_1 (cd, value, start, length, word_length, bufp);
  }
  }
#endif /* ! CGEN_INT_INSN_P */
#endif /* ! CGEN_INT_INSN_P */
  return NULL;
  return NULL;
}
}
/* Default insn builder (insert handler).
/* Default insn builder (insert handler).
   The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
   The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
   that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
   that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
   recorded in host byte order, otherwise BUFFER is an array of bytes
   recorded in host byte order, otherwise BUFFER is an array of bytes
   and the value is recorded in target byte order).
   and the value is recorded in target byte order).
   The result is an error message or NULL if success.  */
   The result is an error message or NULL if success.  */
static const char *
static const char *
insert_insn_normal (CGEN_CPU_DESC cd,
insert_insn_normal (CGEN_CPU_DESC cd,
                    const CGEN_INSN * insn,
                    const CGEN_INSN * insn,
                    CGEN_FIELDS * fields,
                    CGEN_FIELDS * fields,
                    CGEN_INSN_BYTES_PTR buffer,
                    CGEN_INSN_BYTES_PTR buffer,
                    bfd_vma pc)
                    bfd_vma pc)
{
{
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
  unsigned long value;
  unsigned long value;
  const CGEN_SYNTAX_CHAR_TYPE * syn;
  const CGEN_SYNTAX_CHAR_TYPE * syn;
  CGEN_INIT_INSERT (cd);
  CGEN_INIT_INSERT (cd);
  value = CGEN_INSN_BASE_VALUE (insn);
  value = CGEN_INSN_BASE_VALUE (insn);
  /* If we're recording insns as numbers (rather than a string of bytes),
  /* If we're recording insns as numbers (rather than a string of bytes),
     target byte order handling is deferred until later.  */
     target byte order handling is deferred until later.  */
#if CGEN_INT_INSN_P
#if CGEN_INT_INSN_P
  put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
  put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
                      CGEN_FIELDS_BITSIZE (fields), value);
                      CGEN_FIELDS_BITSIZE (fields), value);
#else
#else
  cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
  cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
                                        (unsigned) CGEN_FIELDS_BITSIZE (fields)),
                                        (unsigned) CGEN_FIELDS_BITSIZE (fields)),
                       value);
                       value);
#endif /* ! CGEN_INT_INSN_P */
#endif /* ! CGEN_INT_INSN_P */
  /* ??? It would be better to scan the format's fields.
  /* ??? It would be better to scan the format's fields.
     Still need to be able to insert a value based on the operand though;
     Still need to be able to insert a value based on the operand though;
     e.g. storing a branch displacement that got resolved later.
     e.g. storing a branch displacement that got resolved later.
     Needs more thought first.  */
     Needs more thought first.  */
  for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
  for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
    {
    {
      const char *errmsg;
      const char *errmsg;
      if (CGEN_SYNTAX_CHAR_P (* syn))
      if (CGEN_SYNTAX_CHAR_P (* syn))
        continue;
        continue;
      errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
      errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
                                       fields, buffer, pc);
                                       fields, buffer, pc);
      if (errmsg)
      if (errmsg)
        return errmsg;
        return errmsg;
    }
    }
  return NULL;
  return NULL;
}
}
#if CGEN_INT_INSN_P
#if CGEN_INT_INSN_P
/* Cover function to store an insn value into an integral insn.  Must go here
/* Cover function to store an insn value into an integral insn.  Must go here
   because it needs -desc.h for CGEN_INT_INSN_P.  */
   because it needs -desc.h for CGEN_INT_INSN_P.  */
static void
static void
put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
                    CGEN_INSN_BYTES_PTR buf,
                    CGEN_INSN_BYTES_PTR buf,
                    int length,
                    int length,
                    int insn_length,
                    int insn_length,
                    CGEN_INSN_INT value)
                    CGEN_INSN_INT value)
{
{
  /* For architectures with insns smaller than the base-insn-bitsize,
  /* For architectures with insns smaller than the base-insn-bitsize,
     length may be too big.  */
     length may be too big.  */
  if (length > insn_length)
  if (length > insn_length)
    *buf = value;
    *buf = value;
  else
  else
    {
    {
      int shift = insn_length - length;
      int shift = insn_length - length;
      /* Written this way to avoid undefined behaviour.  */
      /* Written this way to avoid undefined behaviour.  */
      CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
      CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
      *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
      *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
    }
    }
}
}
#endif
#endif


/* Operand extraction.  */
/* Operand extraction.  */
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
/* Subroutine of extract_normal.
/* Subroutine of extract_normal.
   Ensure sufficient bytes are cached in EX_INFO.
   Ensure sufficient bytes are cached in EX_INFO.
   OFFSET is the offset in bytes from the start of the insn of the value.
   OFFSET is the offset in bytes from the start of the insn of the value.
   BYTES is the length of the needed value.
   BYTES is the length of the needed value.
   Returns 1 for success, 0 for failure.  */
   Returns 1 for success, 0 for failure.  */
static CGEN_INLINE int
static CGEN_INLINE int
fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
            CGEN_EXTRACT_INFO *ex_info,
            CGEN_EXTRACT_INFO *ex_info,
            int offset,
            int offset,
            int bytes,
            int bytes,
            bfd_vma pc)
            bfd_vma pc)
{
{
  /* It's doubtful that the middle part has already been fetched so
  /* It's doubtful that the middle part has already been fetched so
     we don't optimize that case.  kiss.  */
     we don't optimize that case.  kiss.  */
  unsigned int mask;
  unsigned int mask;
  disassemble_info *info = (disassemble_info *) ex_info->dis_info;
  disassemble_info *info = (disassemble_info *) ex_info->dis_info;
  /* First do a quick check.  */
  /* First do a quick check.  */
  mask = (1 << bytes) - 1;
  mask = (1 << bytes) - 1;
  if (((ex_info->valid >> offset) & mask) == mask)
  if (((ex_info->valid >> offset) & mask) == mask)
    return 1;
    return 1;
  /* Search for the first byte we need to read.  */
  /* Search for the first byte we need to read.  */
  for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
  for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
    if (! (mask & ex_info->valid))
    if (! (mask & ex_info->valid))
      break;
      break;
  if (bytes)
  if (bytes)
    {
    {
      int status;
      int status;
      pc += offset;
      pc += offset;
      status = (*info->read_memory_func)
      status = (*info->read_memory_func)
        (pc, ex_info->insn_bytes + offset, bytes, info);
        (pc, ex_info->insn_bytes + offset, bytes, info);
      if (status != 0)
      if (status != 0)
        {
        {
          (*info->memory_error_func) (status, pc, info);
          (*info->memory_error_func) (status, pc, info);
          return 0;
          return 0;
        }
        }
      ex_info->valid |= ((1 << bytes) - 1) << offset;
      ex_info->valid |= ((1 << bytes) - 1) << offset;
    }
    }
  return 1;
  return 1;
}
}
/* Subroutine of extract_normal.  */
/* Subroutine of extract_normal.  */
static CGEN_INLINE long
static CGEN_INLINE long
extract_1 (CGEN_CPU_DESC cd,
extract_1 (CGEN_CPU_DESC cd,
           CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
           CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
           int start,
           int start,
           int length,
           int length,
           int word_length,
           int word_length,
           unsigned char *bufp,
           unsigned char *bufp,
           bfd_vma pc ATTRIBUTE_UNUSED)
           bfd_vma pc ATTRIBUTE_UNUSED)
{
{
  unsigned long x;
  unsigned long x;
  int shift;
  int shift;
  x = cgen_get_insn_value (cd, bufp, word_length);
  x = cgen_get_insn_value (cd, bufp, word_length);
  if (CGEN_INSN_LSB0_P)
  if (CGEN_INSN_LSB0_P)
    shift = (start + 1) - length;
    shift = (start + 1) - length;
  else
  else
    shift = (word_length - (start + length));
    shift = (word_length - (start + length));
  return x >> shift;
  return x >> shift;
}
}
#endif /* ! CGEN_INT_INSN_P */
#endif /* ! CGEN_INT_INSN_P */
/* Default extraction routine.
/* Default extraction routine.
   INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
   INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
   or sometimes less for cases like the m32r where the base insn size is 32
   or sometimes less for cases like the m32r where the base insn size is 32
   but some insns are 16 bits.
   but some insns are 16 bits.
   ATTRS is a mask of the boolean attributes.  We only need `SIGNED',
   ATTRS is a mask of the boolean attributes.  We only need `SIGNED',
   but for generality we take a bitmask of all of them.
   but for generality we take a bitmask of all of them.
   WORD_OFFSET is the offset in bits from the start of the insn of the value.
   WORD_OFFSET is the offset in bits from the start of the insn of the value.
   WORD_LENGTH is the length of the word in bits in which the value resides.
   WORD_LENGTH is the length of the word in bits in which the value resides.
   START is the starting bit number in the word, architecture origin.
   START is the starting bit number in the word, architecture origin.
   LENGTH is the length of VALUE in bits.
   LENGTH is the length of VALUE in bits.
   TOTAL_LENGTH is the total length of the insn in bits.
   TOTAL_LENGTH is the total length of the insn in bits.
   Returns 1 for success, 0 for failure.  */
   Returns 1 for success, 0 for failure.  */
/* ??? The return code isn't properly used.  wip.  */
/* ??? The return code isn't properly used.  wip.  */
/* ??? This doesn't handle bfd_vma's.  Create another function when
/* ??? This doesn't handle bfd_vma's.  Create another function when
   necessary.  */
   necessary.  */
static int
static int
extract_normal (CGEN_CPU_DESC cd,
extract_normal (CGEN_CPU_DESC cd,
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
                CGEN_EXTRACT_INFO *ex_info,
                CGEN_EXTRACT_INFO *ex_info,
#else
#else
                CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
                CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
#endif
#endif
                CGEN_INSN_INT insn_value,
                CGEN_INSN_INT insn_value,
                unsigned int attrs,
                unsigned int attrs,
                unsigned int word_offset,
                unsigned int word_offset,
                unsigned int start,
                unsigned int start,
                unsigned int length,
                unsigned int length,
                unsigned int word_length,
                unsigned int word_length,
                unsigned int total_length,
                unsigned int total_length,
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
                bfd_vma pc,
                bfd_vma pc,
#else
#else
                bfd_vma pc ATTRIBUTE_UNUSED,
                bfd_vma pc ATTRIBUTE_UNUSED,
#endif
#endif
                long *valuep)
                long *valuep)
{
{
  long value, mask;
  long value, mask;
  /* If LENGTH is zero, this operand doesn't contribute to the value
  /* If LENGTH is zero, this operand doesn't contribute to the value
     so give it a standard value of zero.  */
     so give it a standard value of zero.  */
  if (length == 0)
  if (length == 0)
    {
    {
      *valuep = 0;
      *valuep = 0;
      return 1;
      return 1;
    }
    }
  if (word_length > 8 * sizeof (CGEN_INSN_INT))
  if (word_length > 8 * sizeof (CGEN_INSN_INT))
    abort ();
    abort ();
  /* For architectures with insns smaller than the insn-base-bitsize,
  /* For architectures with insns smaller than the insn-base-bitsize,
     word_length may be too big.  */
     word_length may be too big.  */
  if (cd->min_insn_bitsize < cd->base_insn_bitsize)
  if (cd->min_insn_bitsize < cd->base_insn_bitsize)
    {
    {
      if (word_offset + word_length > total_length)
      if (word_offset + word_length > total_length)
        word_length = total_length - word_offset;
        word_length = total_length - word_offset;
    }
    }
  /* Does the value reside in INSN_VALUE, and at the right alignment?  */
  /* Does the value reside in INSN_VALUE, and at the right alignment?  */
  if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
  if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
    {
    {
      if (CGEN_INSN_LSB0_P)
      if (CGEN_INSN_LSB0_P)
        value = insn_value >> ((word_offset + start + 1) - length);
        value = insn_value >> ((word_offset + start + 1) - length);
      else
      else
        value = insn_value >> (total_length - ( word_offset + start + length));
        value = insn_value >> (total_length - ( word_offset + start + length));
    }
    }
#if ! CGEN_INT_INSN_P
#if ! CGEN_INT_INSN_P
  else
  else
    {
    {
      unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
      unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
      if (word_length > 8 * sizeof (CGEN_INSN_INT))
      if (word_length > 8 * sizeof (CGEN_INSN_INT))
        abort ();
        abort ();
      if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
      if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
        return 0;
        return 0;
      value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
      value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
    }
    }
#endif /* ! CGEN_INT_INSN_P */
#endif /* ! CGEN_INT_INSN_P */
  /* Written this way to avoid undefined behaviour.  */
  /* Written this way to avoid undefined behaviour.  */
  mask = (((1L << (length - 1)) - 1) << 1) | 1;
  mask = (((1L << (length - 1)) - 1) << 1) | 1;
  value &= mask;
  value &= mask;
  /* sign extend? */
  /* sign extend? */
  if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
  if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
      && (value & (1L << (length - 1))))
      && (value & (1L << (length - 1))))
    value |= ~mask;
    value |= ~mask;
  *valuep = value;
  *valuep = value;
  return 1;
  return 1;
}
}
/* Default insn extractor.
/* Default insn extractor.
   INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
   INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
   The extracted fields are stored in FIELDS.
   The extracted fields are stored in FIELDS.
   EX_INFO is used to handle reading variable length insns.
   EX_INFO is used to handle reading variable length insns.
   Return the length of the insn in bits, or 0 if no match,
   Return the length of the insn in bits, or 0 if no match,
   or -1 if an error occurs fetching data (memory_error_func will have
   or -1 if an error occurs fetching data (memory_error_func will have
   been called).  */
   been called).  */
static int
static int
extract_insn_normal (CGEN_CPU_DESC cd,
extract_insn_normal (CGEN_CPU_DESC cd,
                     const CGEN_INSN *insn,
                     const CGEN_INSN *insn,
                     CGEN_EXTRACT_INFO *ex_info,
                     CGEN_EXTRACT_INFO *ex_info,
                     CGEN_INSN_INT insn_value,
                     CGEN_INSN_INT insn_value,
                     CGEN_FIELDS *fields,
                     CGEN_FIELDS *fields,
                     bfd_vma pc)
                     bfd_vma pc)
{
{
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
  const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
  const CGEN_SYNTAX_CHAR_TYPE *syn;
  const CGEN_SYNTAX_CHAR_TYPE *syn;
  CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
  CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
  CGEN_INIT_EXTRACT (cd);
  CGEN_INIT_EXTRACT (cd);
  for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
  for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
    {
    {
      int length;
      int length;
      if (CGEN_SYNTAX_CHAR_P (*syn))
      if (CGEN_SYNTAX_CHAR_P (*syn))
        continue;
        continue;
      length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
      length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
                                        ex_info, insn_value, fields, pc);
                                        ex_info, insn_value, fields, pc);
      if (length <= 0)
      if (length <= 0)
        return length;
        return length;
    }
    }
  /* We recognized and successfully extracted this insn.  */
  /* We recognized and successfully extracted this insn.  */
  return CGEN_INSN_BITSIZE (insn);
  return CGEN_INSN_BITSIZE (insn);
}
}


/* Machine generated code added here.  */
/* Machine generated code added here.  */
 
 

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