/* CGEN generic opcode support.
- Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2005
- Free Software Foundation, Inc.
+ Copyright (C) 1996-2014 Free Software Foundation, Inc.
- This file is part of the GNU Binutils and GDB, the GNU debugger.
+ This file is part of libopcodes.
- This program 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
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- This program 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.
+ 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 program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
#include "sysdep.h"
+#include "alloca-conf.h"
#include <stdio.h>
#include "ansidecl.h"
#include "libiberty.h"
#include "symcat.h"
#include "opcode/cgen.h"
-#ifdef HAVE_ALLOCA_H
-#include <alloca.h>
-#endif
-
static unsigned int hash_keyword_name
(const CGEN_KEYWORD *, const char *, int);
static unsigned int hash_keyword_value
for (i = 0; i < length; i += insn_chunk_bitsize) /* NB: i == bits */
{
- int index;
+ int bit_index;
bfd_vma this_value;
- index = i; /* NB: not dependent on endianness; opposite of cgen_put_insn_value! */
- this_value = bfd_get_bits (& buf[index / 8], insn_chunk_bitsize, big_p);
+
+ bit_index = i; /* NB: not dependent on endianness; opposite of cgen_put_insn_value! */
+ this_value = bfd_get_bits (& buf[bit_index / 8], insn_chunk_bitsize, big_p);
value = (value << insn_chunk_bitsize) | this_value;
}
}
for (i = 0; i < length; i += insn_chunk_bitsize) /* NB: i == bits */
{
- int index;
- index = (length - insn_chunk_bitsize - i); /* NB: not dependent on endianness! */
- bfd_put_bits ((bfd_vma) value, & buf[index / 8], insn_chunk_bitsize, big_p);
+ int bit_index;
+
+ bit_index = (length - insn_chunk_bitsize - i); /* NB: not dependent on endianness! */
+ bfd_put_bits ((bfd_vma) value, & buf[bit_index / 8], insn_chunk_bitsize, big_p);
value >>= insn_chunk_bitsize;
}
}
{
return cd->signed_overflow_ok_p;
}
-/* Functions for manipulating CGEN_BITSET. */
-
-/* Create a bit mask. */
-CGEN_BITSET *
-cgen_bitset_create (unsigned bit_count)
-{
- CGEN_BITSET * mask = xmalloc (sizeof (* mask));
- cgen_bitset_init (mask, bit_count);
- return mask;
-}
-
-/* Initialize an existing bit mask. */
-
-void
-cgen_bitset_init (CGEN_BITSET * mask, unsigned bit_count)
-{
- if (! mask)
- return;
- mask->length = (bit_count / 8) + 1;
- mask->bits = xmalloc (mask->length);
- cgen_bitset_clear (mask);
-}
-
-/* Clear the bits of a bit mask. */
-
-void
-cgen_bitset_clear (CGEN_BITSET * mask)
-{
- unsigned i;
-
- if (! mask)
- return;
-
- for (i = 0; i < mask->length; ++i)
- mask->bits[i] = 0;
-}
-
-/* Add a bit to a bit mask. */
-
-void
-cgen_bitset_add (CGEN_BITSET * mask, unsigned bit_num)
-{
- int byte_ix, bit_ix;
- int bit_mask;
-
- if (! mask)
- return;
- byte_ix = bit_num / 8;
- bit_ix = bit_num % 8;
- bit_mask = 1 << (7 - bit_ix);
- mask->bits[byte_ix] |= bit_mask;
-}
-
-/* Set a bit mask. */
-
-void
-cgen_bitset_set (CGEN_BITSET * mask, unsigned bit_num)
-{
- if (! mask)
- return;
- cgen_bitset_clear (mask);
- cgen_bitset_add (mask, bit_num);
-}
-
-/* Test for a bit in a bit mask.
- Returns 1 if the bit is found */
-
-int
-cgen_bitset_contains (CGEN_BITSET * mask, unsigned bit_num)
-{
- int byte_ix, bit_ix;
- int bit_mask;
-
- if (! mask)
- return 1; /* No bit restrictions. */
-
- byte_ix = bit_num / 8;
- bit_ix = 7 - (bit_num % 8);
- bit_mask = 1 << bit_ix;
- return (mask->bits[byte_ix] & bit_mask) >> bit_ix;
-}
-
-/* Compare two bit masks for equality.
- Returns 0 if they are equal. */
-
-int
-cgen_bitset_compare (CGEN_BITSET * mask1, CGEN_BITSET * mask2)
-{
- if (mask1 == mask2)
- return 0;
- if (! mask1 || ! mask2)
- return 1;
- if (mask1->length != mask2->length)
- return 1;
- return memcmp (mask1->bits, mask2->bits, mask1->length);
-}
-
-/* Test two bit masks for common bits.
- Returns 1 if a common bit is found. */
-
-int
-cgen_bitset_intersect_p (CGEN_BITSET * mask1, CGEN_BITSET * mask2)
-{
- unsigned i, limit;
-
- if (mask1 == mask2)
- return 1;
- if (! mask1 || ! mask2)
- return 0;
- limit = mask1->length < mask2->length ? mask1->length : mask2->length;
-
- for (i = 0; i < limit; ++i)
- if ((mask1->bits[i] & mask2->bits[i]))
- return 1;
-
- return 0;
-}
-
-/* Make a copy of a bit mask. */
-
-CGEN_BITSET *
-cgen_bitset_copy (CGEN_BITSET * mask)
-{
- CGEN_BITSET* newmask;
-
- if (! mask)
- return NULL;
- newmask = cgen_bitset_create ((mask->length * 8) - 1);
- memcpy (newmask->bits, mask->bits, mask->length);
- return newmask;
-}
-
-/* Combine two bit masks. */
-
-void
-cgen_bitset_union (CGEN_BITSET * mask1, CGEN_BITSET * mask2,
- CGEN_BITSET * result)
-{
- unsigned i;
-
- if (! mask1 || ! mask2 || ! result
- || mask1->length != mask2->length
- || mask1->length != result->length)
- return;
-
- for (i = 0; i < result->length; ++i)
- result->bits[i] = mask1->bits[i] | mask2->bits[i];
-}
projects / platform / upstream / binutils.git / blobdiff