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/* This file is part of the program psim.
Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
This program 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 of the License, 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.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BITS_C_
#define _BITS_C_
#include "basics.h"
INLINE_BITS\
(uint64_t)
LSMASKED64 (uint64_t word,
int start,
int stop)
{
word &= LSMASK64 (start, stop);
return word;
}
INLINE_BITS\
(uint64_t)
LSEXTRACTED64 (uint64_t val,
int start,
int stop)
{
val <<= (64 - 1 - start); /* drop high bits */
val >>= (64 - 1 - start) + (stop); /* drop low bits */
return val;
}
INLINE_BITS\
(uint32_t)
MASKED32(uint32_t word,
unsigned start,
unsigned stop)
{
return (word & MASK32(start, stop));
}
INLINE_BITS\
(uint64_t)
MASKED64(uint64_t word,
unsigned start,
unsigned stop)
{
return (word & MASK64(start, stop));
}
INLINE_BITS\
(unsigned_word)
MASKED(unsigned_word word,
unsigned start,
unsigned stop)
{
return ((word) & MASK(start, stop));
}
INLINE_BITS\
(unsigned_word)
EXTRACTED(unsigned_word word,
unsigned start,
unsigned stop)
{
ASSERT(start <= stop);
#if (WITH_TARGET_WORD_BITSIZE == 64)
return _EXTRACTEDn(64, word, start, stop);
#else
if (stop < 32)
return 0;
else
return ((word >> (63 - stop))
& MASK(start+(63-stop), 63));
#endif
}
INLINE_BITS\
(unsigned_word)
INSERTED(unsigned_word word,
unsigned start,
unsigned stop)
{
ASSERT(start <= stop);
#if (WITH_TARGET_WORD_BITSIZE == 64)
return _INSERTEDn(64, word, start, stop);
#else
if (stop < 32)
return 0;
else
return ((word & MASK(start+(63-stop), 63))
<< (63 - stop));
#endif
}
INLINE_BITS\
(uint32_t)
ROTL32(uint32_t val,
long shift)
{
ASSERT(shift >= 0 && shift <= 32);
return _ROTLn(32, val, shift);
}
INLINE_BITS\
(uint64_t)
ROTL64(uint64_t val,
long shift)
{
ASSERT(shift >= 0 && shift <= 64);
return _ROTLn(64, val, shift);
}
#endif /* _BITS_C_ */
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