mirror of
https://sourceware.org/git/binutils-gdb.git
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1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
275 lines
5.1 KiB
C
275 lines
5.1 KiB
C
/* The common simulator framework for GDB, the GNU Debugger.
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Copyright 2002-2024 Free Software Foundation, Inc.
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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 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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _SIM_BITS_C_
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#define _SIM_BITS_C_
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/* This must come before any other includes. */
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#include "defs.h"
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#include "sim-basics.h"
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#include "sim-assert.h"
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#include "sim-io.h"
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INLINE_SIM_BITS\
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(unsigned_word)
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LSMASKED (unsigned_word val,
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int start,
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int stop)
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{
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/* NOTE - start, stop can wrap */
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val &= LSMASK (start, stop);
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return val;
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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MSMASKED (unsigned_word val,
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int start,
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int stop)
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{
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/* NOTE - start, stop can wrap */
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val &= MSMASK (start, stop);
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return val;
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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LSEXTRACTED (unsigned_word val,
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int start,
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int stop)
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{
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ASSERT (start >= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSEXTRACTED64 (val, start, stop);
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (stop >= 32)
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return 0;
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else
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{
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if (start < 32)
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val &= LSMASK (start, 0);
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val >>= stop;
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return val;
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}
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (stop >= 16)
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return 0;
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else
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{
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if (start < 16)
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val &= LSMASK (start, 0);
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val >>= stop;
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return val;
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}
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#endif
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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MSEXTRACTED (unsigned_word val,
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int start,
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int stop)
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{
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ASSERT (start <= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSEXTRACTED64 (val, start, stop);
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (stop < 32)
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return 0;
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else
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{
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if (start >= 32)
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val &= MSMASK (start, 64 - 1);
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val >>= (64 - stop - 1);
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return val;
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}
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (stop < 16)
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return 0;
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else
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{
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if (start >= 16)
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val &= MSMASK (start, 64 - 1);
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val >>= (64 - stop - 1);
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return val;
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}
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#endif
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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LSINSERTED (unsigned_word val,
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int start,
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int stop)
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{
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ASSERT (start >= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSINSERTED64 (val, start, stop);
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#endif
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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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On 32 bit targets we ignore 63..32 */
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if (stop >= 32)
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return 0;
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else
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{
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val <<= stop;
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val &= LSMASK (start, stop);
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return val;
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}
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#endif
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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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On 16 bit targets we ignore 63..16 */
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if (stop >= 16)
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return 0;
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else
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{
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val <<= stop;
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val &= LSMASK (start, stop);
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return val;
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}
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#endif
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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MSINSERTED (unsigned_word val,
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int start,
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int stop)
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{
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ASSERT (start <= stop);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSINSERTED64 (val, start, stop);
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#endif
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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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On 32 bit targets we ignore 0..31. */
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if (stop < 32)
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return 0;
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else
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{
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val <<= ((64 - 1) - stop);
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val &= MSMASK (start, stop);
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return val;
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}
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#endif
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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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On 16 bit targets we ignore 0..47. */
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if (stop < 32 + 16)
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return 0;
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else
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{
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val <<= ((64 - 1) - stop);
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val &= MSMASK (start, stop);
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return val;
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}
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#endif
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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LSSEXT (signed_word val,
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int sign_bit)
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{
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ASSERT (sign_bit < 64);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return LSSEXT64 (val, sign_bit);
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (sign_bit >= 32)
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return val;
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else {
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val = LSSEXT32 (val, sign_bit);
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return val;
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}
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (sign_bit >= 16)
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return val;
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else {
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val = LSSEXT16 (val, sign_bit);
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return val;
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}
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#endif
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}
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INLINE_SIM_BITS\
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(unsigned_word)
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MSSEXT (signed_word val,
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int sign_bit)
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{
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ASSERT (sign_bit < 64);
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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return MSSEXT64 (val, sign_bit);
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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if (sign_bit < 32)
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return val;
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else {
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val = MSSEXT32 (val, sign_bit - 32);
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return val;
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}
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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if (sign_bit < 32 + 16)
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return val;
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else {
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val = MSSEXT16 (val, sign_bit - 32 - 16);
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return val;
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}
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#endif
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}
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#define N 8
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#include "sim-n-bits.h"
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#undef N
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#define N 16
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#include "sim-n-bits.h"
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#undef N
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#define N 32
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#include "sim-n-bits.h"
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#undef N
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#define N 64
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#include "sim-n-bits.h"
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#undef N
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#endif /* _SIM_BITS_C_ */
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