/* The common simulator framework for GDB, the GNU Debugger.
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/* The common simulator framework for GDB, the GNU Debugger.
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Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Copyright 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
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Contributed by Andrew Cagney and Red Hat.
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Contributed by Andrew Cagney and Red Hat.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _SIM_BITS_C_
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#ifndef _SIM_BITS_C_
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#define _SIM_BITS_C_
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#define _SIM_BITS_C_
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#include "sim-basics.h"
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#include "sim-basics.h"
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#include "sim-assert.h"
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#include "sim-assert.h"
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#include "sim-io.h"
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#include "sim-io.h"
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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LSMASKED (unsigned_word val,
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LSMASKED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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/* NOTE - start, stop can wrap */
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/* NOTE - start, stop can wrap */
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val &= LSMASK (start, stop);
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val &= LSMASK (start, stop);
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return val;
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return val;
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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MSMASKED (unsigned_word val,
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MSMASKED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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/* NOTE - start, stop can wrap */
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/* NOTE - start, stop can wrap */
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val &= MSMASK (start, stop);
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val &= MSMASK (start, stop);
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return val;
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return val;
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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LSEXTRACTED (unsigned_word val,
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LSEXTRACTED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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ASSERT (start >= stop);
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ASSERT (start >= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSEXTRACTED64 (val, start, stop);
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return LSEXTRACTED64 (val, start, stop);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (stop >= 32)
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if (stop >= 32)
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return 0;
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return 0;
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else
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else
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{
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{
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if (start < 32)
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if (start < 32)
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val &= LSMASK (start, 0);
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val &= LSMASK (start, 0);
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val >>= stop;
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val >>= stop;
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (stop >= 16)
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if (stop >= 16)
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return 0;
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return 0;
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else
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else
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{
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{
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if (start < 16)
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if (start < 16)
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val &= LSMASK (start, 0);
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val &= LSMASK (start, 0);
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val >>= stop;
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val >>= stop;
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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MSEXTRACTED (unsigned_word val,
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MSEXTRACTED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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ASSERT (start <= stop);
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ASSERT (start <= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSEXTRACTED64 (val, start, stop);
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return MSEXTRACTED64 (val, start, stop);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (stop < 32)
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if (stop < 32)
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return 0;
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return 0;
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else
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else
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{
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{
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if (start >= 32)
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if (start >= 32)
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val &= MSMASK (start, 64 - 1);
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val &= MSMASK (start, 64 - 1);
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val >>= (64 - stop - 1);
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val >>= (64 - stop - 1);
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (stop < 16)
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if (stop < 16)
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return 0;
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return 0;
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else
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else
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{
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{
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if (start >= 16)
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if (start >= 16)
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val &= MSMASK (start, 64 - 1);
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val &= MSMASK (start, 64 - 1);
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val >>= (64 - stop - 1);
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val >>= (64 - stop - 1);
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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LSINSERTED (unsigned_word val,
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LSINSERTED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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ASSERT (start >= stop);
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ASSERT (start >= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSINSERTED64 (val, start, stop);
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return LSINSERTED64 (val, start, stop);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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/* Bit numbers are 63..0, even for 32 bit targets.
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/* Bit numbers are 63..0, even for 32 bit targets.
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On 32 bit targets we ignore 63..32 */
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On 32 bit targets we ignore 63..32 */
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if (stop >= 32)
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if (stop >= 32)
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return 0;
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return 0;
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else
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else
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{
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{
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val <<= stop;
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val <<= stop;
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val &= LSMASK (start, stop);
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val &= LSMASK (start, stop);
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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/* Bit numbers are 63..0, even for 16 bit targets.
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/* Bit numbers are 63..0, even for 16 bit targets.
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On 16 bit targets we ignore 63..16 */
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On 16 bit targets we ignore 63..16 */
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if (stop >= 16)
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if (stop >= 16)
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return 0;
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return 0;
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else
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else
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{
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{
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val <<= stop;
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val <<= stop;
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val &= LSMASK (start, stop);
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val &= LSMASK (start, stop);
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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MSINSERTED (unsigned_word val,
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MSINSERTED (unsigned_word val,
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int start,
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int start,
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int stop)
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int stop)
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{
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{
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ASSERT (start <= stop);
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ASSERT (start <= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSINSERTED64 (val, start, stop);
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return MSINSERTED64 (val, start, stop);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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/* Bit numbers are 0..63, even for 32 bit targets.
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/* Bit numbers are 0..63, even for 32 bit targets.
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On 32 bit targets we ignore 0..31. */
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On 32 bit targets we ignore 0..31. */
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if (stop < 32)
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if (stop < 32)
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return 0;
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return 0;
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else
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else
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{
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{
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val <<= ((64 - 1) - stop);
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val <<= ((64 - 1) - stop);
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val &= MSMASK (start, stop);
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val &= MSMASK (start, stop);
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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/* Bit numbers are 0..63, even for 16 bit targets.
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/* Bit numbers are 0..63, even for 16 bit targets.
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On 16 bit targets we ignore 0..47. */
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On 16 bit targets we ignore 0..47. */
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if (stop < 32 + 16)
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if (stop < 32 + 16)
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return 0;
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return 0;
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else
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else
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{
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{
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val <<= ((64 - 1) - stop);
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val <<= ((64 - 1) - stop);
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val &= MSMASK (start, stop);
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val &= MSMASK (start, stop);
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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LSSEXT (signed_word val,
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LSSEXT (signed_word val,
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int sign_bit)
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int sign_bit)
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{
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{
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ASSERT (sign_bit < 64);
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ASSERT (sign_bit < 64);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSSEXT64 (val, sign_bit);
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return LSSEXT64 (val, sign_bit);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (sign_bit >= 32)
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if (sign_bit >= 32)
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return val;
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return val;
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else {
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else {
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val = LSSEXT32 (val, sign_bit);
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val = LSSEXT32 (val, sign_bit);
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (sign_bit >= 16)
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if (sign_bit >= 16)
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return val;
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return val;
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else {
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else {
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val = LSSEXT16 (val, sign_bit);
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val = LSSEXT16 (val, sign_bit);
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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INLINE_SIM_BITS\
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INLINE_SIM_BITS\
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(unsigned_word)
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(unsigned_word)
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MSSEXT (signed_word val,
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MSSEXT (signed_word val,
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int sign_bit)
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int sign_bit)
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{
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{
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ASSERT (sign_bit < 64);
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ASSERT (sign_bit < 64);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSSEXT64 (val, sign_bit);
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return MSSEXT64 (val, sign_bit);
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (sign_bit < 32)
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if (sign_bit < 32)
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return val;
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return val;
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else {
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else {
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val = MSSEXT32 (val, sign_bit - 32);
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val = MSSEXT32 (val, sign_bit - 32);
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return val;
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return val;
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}
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}
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#endif
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (sign_bit < 32 + 16)
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if (sign_bit < 32 + 16)
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return val;
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return val;
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else {
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else {
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val = MSSEXT16 (val, sign_bit - 32 - 16);
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val = MSSEXT16 (val, sign_bit - 32 - 16);
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return val;
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return val;
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}
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}
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#endif
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#endif
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}
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}
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#define N 8
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#define N 8
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#include "sim-n-bits.h"
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#include "sim-n-bits.h"
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#undef N
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#undef N
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#define N 16
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#define N 16
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#include "sim-n-bits.h"
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#include "sim-n-bits.h"
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#undef N
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#undef N
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#define N 32
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#define N 32
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#include "sim-n-bits.h"
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#include "sim-n-bits.h"
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#undef N
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#undef N
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#define N 64
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#define N 64
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#include "sim-n-bits.h"
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#include "sim-n-bits.h"
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#undef N
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#undef N
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#endif /* _SIM_BITS_C_ */
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#endif /* _SIM_BITS_C_ */
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