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jeremybenn |
/* 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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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_H_
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#define _SIM_BITS_H_
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/* Bit manipulation routines:
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Bit numbering: The bits are numbered according to the target ISA's
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convention. That being controlled by WITH_TARGET_WORD_MSB. For
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the PowerPC (WITH_TARGET_WORD_MSB == 0) the numbering is 0..31
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while for the MIPS (WITH_TARGET_WORD_MSB == 31) it is 31..0.
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Size convention: Each macro is in three forms - <MACRO>32 which
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operates in 32bit quantity (bits are numbered 0..31); <MACRO>64
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which operates using 64bit quantites (and bits are numbered 0..63);
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and <MACRO> which operates using the bit size of the target
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architecture (bits are still numbered 0..63), with 32bit
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architectures ignoring the first 32bits leaving bit 32 as the most
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significant.
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NB: Use EXTRACTED, MSEXTRACTED and LSEXTRACTED as a guideline for
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naming. LSMASK and LSMASKED are wrong.
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BIT*(POS): `*' bit constant with just 1 bit set.
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LSBIT*(OFFSET): `*' bit constant with just 1 bit set - LS bit is
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zero.
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MSBIT*(OFFSET): `*' bit constant with just 1 bit set - MS bit is
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zero.
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MASK*(FIRST, LAST): `*' bit constant with bits [FIRST .. LAST]
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set. The <MACRO> (no size) version permits FIRST >= LAST and
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generates a wrapped bit mask vis ([0..LAST] | [FIRST..LSB]).
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LSMASK*(FIRST, LAST): Like MASK - LS bit is zero.
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MSMASK*(FIRST, LAST): Like MASK - LS bit is zero.
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MASKED*(VALUE, FIRST, LAST): Masks out all but bits [FIRST
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.. LAST].
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LSMASKED*(VALUE, FIRST, LAST): Like MASKED - LS bit is zero.
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MSMASKED*(VALUE, FIRST, LAST): Like MASKED - MS bit is zero.
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EXTRACTED*(VALUE, FIRST, LAST): Masks out bits [FIRST .. LAST] but
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also right shifts the masked value so that bit LAST becomes the
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least significant (right most).
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LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is
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zero.
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MSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - MS bit is
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zero.
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SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD
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new NEW.
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MOVED**(VALUE, OLD_FIRST, OLD_LAST, NEW_FIRST, NEW_LAST): Moves
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things around so that bits OLD_FIRST..OLD_LAST are masked then
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moved to NEW_FIRST..NEW_LAST.
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INSERTED*(VALUE, FIRST, LAST): Takes VALUE and `inserts' the (LAST
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- FIRST + 1) least significant bits into bit positions [ FIRST
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.. LAST ]. This is almost the complement to EXTRACTED.
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IEA_MASKED(SHOULD_MASK, ADDR): Convert the address to the targets
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natural size. If in 32bit mode, discard the high 32bits.
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EXTEND*(VALUE): Convert the `*' bit value to the targets natural
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word size. Sign extend the value if needed.
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ALIGN_*(VALUE): Round the value upwards so that it is aligned to a
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`_*' byte boundary.
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FLOOR_*(VALUE): Truncate the value so that it is aligned to a `_*'
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byte boundary.
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ROT*(VALUE, NR_BITS): Return the `*' bit VALUE rotated by NR_BITS
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right (positive) or left (negative).
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ROTL*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS
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left. 0 <= NR_BITS <= `*'.
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ROTR*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS
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right. 0 <= NR_BITS <= N.
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SEXT*(VALUE, SIGN_BIT): Treat SIGN_BIT as VALUEs sign, extend it ti
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`*' bits.
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Note: Only the BIT* and MASK* macros return a constant that can be
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used in variable declarations.
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*/
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/* compute the number of bits between START and STOP */
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _MAKE_WIDTH(START, STOP) (STOP - START + 1)
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#else
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#define _MAKE_WIDTH(START, STOP) (START - STOP + 1)
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#endif
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/* compute the number shifts required to move a bit between LSB (MSB)
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and POS */
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _LSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS)
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#else
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#define _LSB_SHIFT(WIDTH, POS) (POS)
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#endif
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _MSB_SHIFT(WIDTH, POS) (POS)
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#else
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#define _MSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS)
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#endif
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/* compute the absolute bit position given the OFFSET from the MSB(LSB)
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NB: _MAKE_xxx_POS (WIDTH, _MAKE_xxx_SHIFT (WIDTH, POS)) == POS */
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _MSB_POS(WIDTH, SHIFT) (SHIFT)
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#else
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#define _MSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT)
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#endif
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _LSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT)
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#else
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#define _LSB_POS(WIDTH, SHIFT) (SHIFT)
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#endif
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/* convert a 64 bit position into a corresponding 32bit position. MSB
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pos handles the posibility that the bit lies beyond the 32bit
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boundary */
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _MSB_32(START, STOP) (START <= STOP \
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? (START < 32 ? 0 : START - 32) \
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: (STOP < 32 ? 0 : STOP - 32))
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#define _MSB_16(START, STOP) (START <= STOP \
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? (START < 48 ? 0 : START - 48) \
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: (STOP < 48 ? 0 : STOP - 48))
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#else
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#define _MSB_32(START, STOP) (START >= STOP \
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? (START >= 32 ? 31 : START) \
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: (STOP >= 32 ? 31 : STOP))
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#define _MSB_16(START, STOP) (START >= STOP \
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? (START >= 16 ? 15 : START) \
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: (STOP >= 16 ? 15 : STOP))
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#endif
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _LSB_32(START, STOP) (START <= STOP \
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? (STOP < 32 ? 0 : STOP - 32) \
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: (START < 32 ? 0 : START - 32))
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#define _LSB_16(START, STOP) (START <= STOP \
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? (STOP < 48 ? 0 : STOP - 48) \
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: (START < 48 ? 0 : START - 48))
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#else
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#define _LSB_32(START, STOP) (START >= STOP \
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? (STOP >= 32 ? 31 : STOP) \
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: (START >= 32 ? 31 : START))
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#define _LSB_16(START, STOP) (START >= STOP \
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? (STOP >= 16 ? 15 : STOP) \
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: (START >= 16 ? 15 : START))
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#endif
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _MSB(START, STOP) (START <= STOP ? START : STOP)
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#else
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#define _MSB(START, STOP) (START >= STOP ? START : STOP)
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#endif
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _LSB(START, STOP) (START <= STOP ? STOP : START)
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#else
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#define _LSB(START, STOP) (START >= STOP ? STOP : START)
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#endif
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/* LS/MS Bit operations */
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#define LSBIT8(POS) ((unsigned8) 1 << (POS))
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#define LSBIT16(POS) ((unsigned16)1 << (POS))
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#define LSBIT32(POS) ((unsigned32)1 << (POS))
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#define LSBIT64(POS) ((unsigned64)1 << (POS))
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#define LSBIT(POS) LSBIT64 (POS)
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#define LSBIT(POS) ((unsigned32)((POS) >= 32 \
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? 0 \
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: (1 << ((POS) >= 32 ? 0 : (POS)))))
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#define LSBIT(POS) ((unsigned16)((POS) >= 16 \
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? 0 \
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: (1 << ((POS) >= 16 ? 0 : (POS)))))
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#endif
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#define MSBIT8(POS) ((unsigned8) 1 << ( 8 - 1 - (POS)))
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#define MSBIT16(POS) ((unsigned16)1 << (16 - 1 - (POS)))
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#define MSBIT32(POS) ((unsigned32)1 << (32 - 1 - (POS)))
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#define MSBIT64(POS) ((unsigned64)1 << (64 - 1 - (POS)))
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#define MSBIT(POS) MSBIT64 (POS)
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#define MSBIT(POS) ((unsigned32)((POS) < 32 \
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? 0 \
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: (1 << ((POS) < 32 ? 0 : (64 - 1) - (POS)))))
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#define MSBIT(POS) ((unsigned16)((POS) < 48 \
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? 0 \
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: (1 << ((POS) < 48 ? 0 : (64 - 1) - (POS)))))
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#endif
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/* Bit operations */
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#define BIT4(POS) (1 << _LSB_SHIFT (4, (POS)))
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#define BIT5(POS) (1 << _LSB_SHIFT (5, (POS)))
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#define BIT10(POS) (1 << _LSB_SHIFT (10, (POS)))
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#if (WITH_TARGET_WORD_MSB == 0)
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#define BIT8 MSBIT8
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#define BIT16 MSBIT16
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#define BIT32 MSBIT32
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#define BIT64 MSBIT64
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#define BIT MSBIT
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#else
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#define BIT8 LSBIT8
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#define BIT16 LSBIT16
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#define BIT32 LSBIT32
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#define BIT64 LSBIT64
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#define BIT LSBIT
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#endif
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/* multi bit mask */
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/* 111111 -> mmll11 -> mm11ll */
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#define _MASKn(WIDTH, START, STOP) (((unsigned##WIDTH)(-1) \
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>> (_MSB_SHIFT (WIDTH, START) \
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+ _LSB_SHIFT (WIDTH, STOP))) \
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<< _LSB_SHIFT (WIDTH, STOP))
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#if (WITH_TARGET_WORD_MSB == 0)
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#define _POS_LE(START, STOP) (START <= STOP)
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#else
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#define _POS_LE(START, STOP) (STOP <= START)
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 64)
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#define MASK(START, STOP) \
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(_POS_LE ((START), (STOP)) \
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? _MASKn(64, \
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_MSB ((START), (STOP)), \
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_LSB ((START), (STOP)) ) \
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: (_MASKn(64, _MSB_POS (64, 0), (STOP)) \
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| _MASKn(64, (START), _LSB_POS (64, 0))))
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 32)
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#define MASK(START, STOP) \
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(_POS_LE ((START), (STOP)) \
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? (_POS_LE ((STOP), _MSB_POS (64, 31)) \
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? 0 \
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: _MASKn (32, \
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_MSB_32 ((START), (STOP)), \
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_LSB_32 ((START), (STOP)))) \
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: (_MASKn (32, \
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_LSB_32 ((START), (STOP)), \
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_LSB_POS (32, 0)) \
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| (_POS_LE ((STOP), _MSB_POS (64, 31)) \
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? 0 \
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: _MASKn (32, \
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_MSB_POS (32, 0), \
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_MSB_32 ((START), (STOP))))))
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#endif
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#if (WITH_TARGET_WORD_BITSIZE == 16)
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#define MASK(START, STOP) \
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(_POS_LE ((START), (STOP)) \
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? (_POS_LE ((STOP), _MSB_POS (64, 15)) \
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? 0 \
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: _MASKn (16, \
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_MSB_16 ((START), (STOP)), \
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_LSB_16 ((START), (STOP)))) \
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: (_MASKn (16, \
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_LSB_16 ((START), (STOP)), \
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_LSB_POS (16, 0)) \
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| (_POS_LE ((STOP), _MSB_POS (64, 15)) \
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? 0 \
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: _MASKn (16, \
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_MSB_POS (16, 0), \
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_MSB_16 ((START), (STOP))))))
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#endif
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#if !defined (MASK)
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#error "MASK never undefined"
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#endif
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/* Multi-bit mask on least significant bits */
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#define _LSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \
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_LSB_POS (WIDTH, FIRST), \
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_LSB_POS (WIDTH, LAST))
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|
342 |
|
|
#define LSMASK8(FIRST, LAST) _LSMASKn ( 8, (FIRST), (LAST))
|
343 |
|
|
#define LSMASK16(FIRST, LAST) _LSMASKn (16, (FIRST), (LAST))
|
344 |
|
|
#define LSMASK32(FIRST, LAST) _LSMASKn (32, (FIRST), (LAST))
|
345 |
|
|
#define LSMASK64(FIRST, LAST) _LSMASKn (64, (FIRST), (LAST))
|
346 |
|
|
|
347 |
|
|
#define LSMASK(FIRST, LAST) (MASK (_LSB_POS (64, FIRST), _LSB_POS (64, LAST)))
|
348 |
|
|
|
349 |
|
|
|
350 |
|
|
/* Multi-bit mask on most significant bits */
|
351 |
|
|
|
352 |
|
|
#define _MSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \
|
353 |
|
|
_MSB_POS (WIDTH, FIRST), \
|
354 |
|
|
_MSB_POS (WIDTH, LAST))
|
355 |
|
|
|
356 |
|
|
#define MSMASK8(FIRST, LAST) _MSMASKn ( 8, (FIRST), (LAST))
|
357 |
|
|
#define MSMASK16(FIRST, LAST) _MSMASKn (16, (FIRST), (LAST))
|
358 |
|
|
#define MSMASK32(FIRST, LAST) _MSMASKn (32, (FIRST), (LAST))
|
359 |
|
|
#define MSMASK64(FIRST, LAST) _MSMASKn (64, (FIRST), (LAST))
|
360 |
|
|
|
361 |
|
|
#define MSMASK(FIRST, LAST) (MASK (_MSB_POS (64, FIRST), _MSB_POS (64, LAST)))
|
362 |
|
|
|
363 |
|
|
|
364 |
|
|
|
365 |
|
|
#if (WITH_TARGET_WORD_MSB == 0)
|
366 |
|
|
#define MASK8 MSMASK8
|
367 |
|
|
#define MASK16 MSMASK16
|
368 |
|
|
#define MASK32 MSMASK32
|
369 |
|
|
#define MASK64 MSMASK64
|
370 |
|
|
#else
|
371 |
|
|
#define MASK8 LSMASK8
|
372 |
|
|
#define MASK16 LSMASK16
|
373 |
|
|
#define MASK32 LSMASK32
|
374 |
|
|
#define MASK64 LSMASK64
|
375 |
|
|
#endif
|
376 |
|
|
|
377 |
|
|
|
378 |
|
|
|
379 |
|
|
/* mask the required bits, leaving them in place */
|
380 |
|
|
|
381 |
|
|
INLINE_SIM_BITS(unsigned8) LSMASKED8 (unsigned8 word, int first, int last);
|
382 |
|
|
INLINE_SIM_BITS(unsigned16) LSMASKED16 (unsigned16 word, int first, int last);
|
383 |
|
|
INLINE_SIM_BITS(unsigned32) LSMASKED32 (unsigned32 word, int first, int last);
|
384 |
|
|
INLINE_SIM_BITS(unsigned64) LSMASKED64 (unsigned64 word, int first, int last);
|
385 |
|
|
|
386 |
|
|
INLINE_SIM_BITS(unsigned_word) LSMASKED (unsigned_word word, int first, int last);
|
387 |
|
|
|
388 |
|
|
INLINE_SIM_BITS(unsigned8) MSMASKED8 (unsigned8 word, int first, int last);
|
389 |
|
|
INLINE_SIM_BITS(unsigned16) MSMASKED16 (unsigned16 word, int first, int last);
|
390 |
|
|
INLINE_SIM_BITS(unsigned32) MSMASKED32 (unsigned32 word, int first, int last);
|
391 |
|
|
INLINE_SIM_BITS(unsigned64) MSMASKED64 (unsigned64 word, int first, int last);
|
392 |
|
|
|
393 |
|
|
INLINE_SIM_BITS(unsigned_word) MSMASKED (unsigned_word word, int first, int last);
|
394 |
|
|
|
395 |
|
|
#if (WITH_TARGET_WORD_MSB == 0)
|
396 |
|
|
#define MASKED8 MSMASKED8
|
397 |
|
|
#define MASKED16 MSMASKED16
|
398 |
|
|
#define MASKED32 MSMASKED32
|
399 |
|
|
#define MASKED64 MSMASKED64
|
400 |
|
|
#define MASKED MSMASKED
|
401 |
|
|
#else
|
402 |
|
|
#define MASKED8 LSMASKED8
|
403 |
|
|
#define MASKED16 LSMASKED16
|
404 |
|
|
#define MASKED32 LSMASKED32
|
405 |
|
|
#define MASKED64 LSMASKED64
|
406 |
|
|
#define MASKED LSMASKED
|
407 |
|
|
#endif
|
408 |
|
|
|
409 |
|
|
|
410 |
|
|
|
411 |
|
|
/* extract the required bits aligning them with the lsb */
|
412 |
|
|
|
413 |
|
|
INLINE_SIM_BITS(unsigned8) LSEXTRACTED8 (unsigned8 val, int start, int stop);
|
414 |
|
|
INLINE_SIM_BITS(unsigned16) LSEXTRACTED16 (unsigned16 val, int start, int stop);
|
415 |
|
|
INLINE_SIM_BITS(unsigned32) LSEXTRACTED32 (unsigned32 val, int start, int stop);
|
416 |
|
|
INLINE_SIM_BITS(unsigned64) LSEXTRACTED64 (unsigned64 val, int start, int stop);
|
417 |
|
|
|
418 |
|
|
INLINE_SIM_BITS(unsigned_word) LSEXTRACTED (unsigned_word val, int start, int stop);
|
419 |
|
|
|
420 |
|
|
INLINE_SIM_BITS(unsigned8) MSEXTRACTED8 (unsigned8 val, int start, int stop);
|
421 |
|
|
INLINE_SIM_BITS(unsigned16) MSEXTRACTED16 (unsigned16 val, int start, int stop);
|
422 |
|
|
INLINE_SIM_BITS(unsigned32) MSEXTRACTED32 (unsigned32 val, int start, int stop);
|
423 |
|
|
INLINE_SIM_BITS(unsigned64) MSEXTRACTED64 (unsigned64 val, int start, int stop);
|
424 |
|
|
|
425 |
|
|
INLINE_SIM_BITS(unsigned_word) MSEXTRACTED (unsigned_word val, int start, int stop);
|
426 |
|
|
|
427 |
|
|
#if (WITH_TARGET_WORD_MSB == 0)
|
428 |
|
|
#define EXTRACTED8 MSEXTRACTED8
|
429 |
|
|
#define EXTRACTED16 MSEXTRACTED16
|
430 |
|
|
#define EXTRACTED32 MSEXTRACTED32
|
431 |
|
|
#define EXTRACTED64 MSEXTRACTED64
|
432 |
|
|
#define EXTRACTED MSEXTRACTED
|
433 |
|
|
#else
|
434 |
|
|
#define EXTRACTED8 LSEXTRACTED8
|
435 |
|
|
#define EXTRACTED16 LSEXTRACTED16
|
436 |
|
|
#define EXTRACTED32 LSEXTRACTED32
|
437 |
|
|
#define EXTRACTED64 LSEXTRACTED64
|
438 |
|
|
#define EXTRACTED LSEXTRACTED
|
439 |
|
|
#endif
|
440 |
|
|
|
441 |
|
|
|
442 |
|
|
|
443 |
|
|
/* move a single bit around */
|
444 |
|
|
/* NB: the wierdness (N>O?N-O:0) is to stop a warning from GCC */
|
445 |
|
|
#define _SHUFFLEDn(N, WORD, OLD, NEW) \
|
446 |
|
|
((OLD) < (NEW) \
|
447 |
|
|
? (((unsigned##N)(WORD) \
|
448 |
|
|
>> (((NEW) > (OLD)) ? ((NEW) - (OLD)) : 0)) \
|
449 |
|
|
& MASK32((NEW), (NEW))) \
|
450 |
|
|
: (((unsigned##N)(WORD) \
|
451 |
|
|
<< (((OLD) > (NEW)) ? ((OLD) - (NEW)) : 0)) \
|
452 |
|
|
& MASK32((NEW), (NEW))))
|
453 |
|
|
|
454 |
|
|
#define SHUFFLED32(WORD, OLD, NEW) _SHUFFLEDn (32, WORD, OLD, NEW)
|
455 |
|
|
#define SHUFFLED64(WORD, OLD, NEW) _SHUFFLEDn (64, WORD, OLD, NEW)
|
456 |
|
|
|
457 |
|
|
#define SHUFFLED(WORD, OLD, NEW) _SHUFFLEDn (_word, WORD, OLD, NEW)
|
458 |
|
|
|
459 |
|
|
|
460 |
|
|
/* Insert a group of bits into a bit position */
|
461 |
|
|
|
462 |
|
|
INLINE_SIM_BITS(unsigned8) LSINSERTED8 (unsigned8 val, int start, int stop);
|
463 |
|
|
INLINE_SIM_BITS(unsigned16) LSINSERTED16 (unsigned16 val, int start, int stop);
|
464 |
|
|
INLINE_SIM_BITS(unsigned32) LSINSERTED32 (unsigned32 val, int start, int stop);
|
465 |
|
|
INLINE_SIM_BITS(unsigned64) LSINSERTED64 (unsigned64 val, int start, int stop);
|
466 |
|
|
INLINE_SIM_BITS(unsigned_word) LSINSERTED (unsigned_word val, int start, int stop);
|
467 |
|
|
|
468 |
|
|
INLINE_SIM_BITS(unsigned8) MSINSERTED8 (unsigned8 val, int start, int stop);
|
469 |
|
|
INLINE_SIM_BITS(unsigned16) MSINSERTED16 (unsigned16 val, int start, int stop);
|
470 |
|
|
INLINE_SIM_BITS(unsigned32) MSINSERTED32 (unsigned32 val, int start, int stop);
|
471 |
|
|
INLINE_SIM_BITS(unsigned64) MSINSERTED64 (unsigned64 val, int start, int stop);
|
472 |
|
|
INLINE_SIM_BITS(unsigned_word) MSINSERTED (unsigned_word val, int start, int stop);
|
473 |
|
|
|
474 |
|
|
#if (WITH_TARGET_WORD_MSB == 0)
|
475 |
|
|
#define INSERTED8 MSINSERTED8
|
476 |
|
|
#define INSERTED16 MSINSERTED16
|
477 |
|
|
#define INSERTED32 MSINSERTED32
|
478 |
|
|
#define INSERTED64 MSINSERTED64
|
479 |
|
|
#define INSERTED MSINSERTED
|
480 |
|
|
#else
|
481 |
|
|
#define INSERTED8 LSINSERTED8
|
482 |
|
|
#define INSERTED16 LSINSERTED16
|
483 |
|
|
#define INSERTED32 LSINSERTED32
|
484 |
|
|
#define INSERTED64 LSINSERTED64
|
485 |
|
|
#define INSERTED LSINSERTED
|
486 |
|
|
#endif
|
487 |
|
|
|
488 |
|
|
|
489 |
|
|
|
490 |
|
|
/* MOVE bits from one loc to another (combination of extract/insert) */
|
491 |
|
|
|
492 |
|
|
#define MOVED8(VAL,OH,OL,NH,NL) INSERTED8 (EXTRACTED8 ((VAL), OH, OL), NH, NL)
|
493 |
|
|
#define MOVED16(VAL,OH,OL,NH,NL) INSERTED16(EXTRACTED16((VAL), OH, OL), NH, NL)
|
494 |
|
|
#define MOVED32(VAL,OH,OL,NH,NL) INSERTED32(EXTRACTED32((VAL), OH, OL), NH, NL)
|
495 |
|
|
#define MOVED64(VAL,OH,OL,NH,NL) INSERTED64(EXTRACTED64((VAL), OH, OL), NH, NL)
|
496 |
|
|
#define MOVED(VAL,OH,OL,NH,NL) INSERTED (EXTRACTED ((VAL), OH, OL), NH, NL)
|
497 |
|
|
|
498 |
|
|
|
499 |
|
|
|
500 |
|
|
/* Sign extend the quantity to the targets natural word size */
|
501 |
|
|
|
502 |
|
|
#define EXTEND4(X) (LSSEXT ((X), 3))
|
503 |
|
|
#define EXTEND5(X) (LSSEXT ((X), 4))
|
504 |
|
|
#define EXTEND8(X) ((signed_word)(signed8)(X))
|
505 |
|
|
#define EXTEND11(X) (LSSEXT ((X), 10))
|
506 |
|
|
#define EXTEND15(X) (LSSEXT ((X), 14))
|
507 |
|
|
#define EXTEND16(X) ((signed_word)(signed16)(X))
|
508 |
|
|
#define EXTEND24(X) (LSSEXT ((X), 23))
|
509 |
|
|
#define EXTEND32(X) ((signed_word)(signed32)(X))
|
510 |
|
|
#define EXTEND64(X) ((signed_word)(signed64)(X))
|
511 |
|
|
|
512 |
|
|
/* depending on MODE return a 64bit or 32bit (sign extended) value */
|
513 |
|
|
#if (WITH_TARGET_WORD_BITSIZE == 64)
|
514 |
|
|
#define EXTENDED(X) ((signed64)(signed32)(X))
|
515 |
|
|
#endif
|
516 |
|
|
#if (WITH_TARGET_WORD_BITSIZE == 32)
|
517 |
|
|
#define EXTENDED(X) (X)
|
518 |
|
|
#endif
|
519 |
|
|
#if (WITH_TARGET_WORD_BITSIZE == 16)
|
520 |
|
|
#define EXTENDED(X) (X)
|
521 |
|
|
#endif
|
522 |
|
|
|
523 |
|
|
|
524 |
|
|
/* memory alignment macro's */
|
525 |
|
|
#define _ALIGNa(A,X) (((X) + ((A) - 1)) & ~((A) - 1))
|
526 |
|
|
#define _FLOORa(A,X) ((X) & ~((A) - 1))
|
527 |
|
|
|
528 |
|
|
#define ALIGN_8(X) _ALIGNa (8, X)
|
529 |
|
|
#define ALIGN_16(X) _ALIGNa (16, X)
|
530 |
|
|
|
531 |
|
|
#define ALIGN_PAGE(X) _ALIGNa (0x1000, X)
|
532 |
|
|
#define FLOOR_PAGE(X) ((X) & ~(0x1000 - 1))
|
533 |
|
|
|
534 |
|
|
|
535 |
|
|
/* bit bliting macro's */
|
536 |
|
|
#define BLIT32(V, POS, BIT) \
|
537 |
|
|
do { \
|
538 |
|
|
if (BIT) \
|
539 |
|
|
V |= BIT32 (POS); \
|
540 |
|
|
else \
|
541 |
|
|
V &= ~BIT32 (POS); \
|
542 |
|
|
} while (0)
|
543 |
|
|
#define MBLIT32(V, LO, HI, VAL) \
|
544 |
|
|
do { \
|
545 |
|
|
(V) = (((V) & ~MASK32 ((LO), (HI))) \
|
546 |
|
|
| INSERTED32 (VAL, LO, HI)); \
|
547 |
|
|
} while (0)
|
548 |
|
|
|
549 |
|
|
|
550 |
|
|
|
551 |
|
|
/* some rotate functions. The generic macro's ROT, ROTL, ROTR are
|
552 |
|
|
intentionally omited. */
|
553 |
|
|
|
554 |
|
|
|
555 |
|
|
INLINE_SIM_BITS(unsigned8) ROT8 (unsigned8 val, int shift);
|
556 |
|
|
INLINE_SIM_BITS(unsigned16) ROT16 (unsigned16 val, int shift);
|
557 |
|
|
INLINE_SIM_BITS(unsigned32) ROT32 (unsigned32 val, int shift);
|
558 |
|
|
INLINE_SIM_BITS(unsigned64) ROT64 (unsigned64 val, int shift);
|
559 |
|
|
|
560 |
|
|
|
561 |
|
|
INLINE_SIM_BITS(unsigned8) ROTL8 (unsigned8 val, int shift);
|
562 |
|
|
INLINE_SIM_BITS(unsigned16) ROTL16 (unsigned16 val, int shift);
|
563 |
|
|
INLINE_SIM_BITS(unsigned32) ROTL32 (unsigned32 val, int shift);
|
564 |
|
|
INLINE_SIM_BITS(unsigned64) ROTL64 (unsigned64 val, int shift);
|
565 |
|
|
|
566 |
|
|
|
567 |
|
|
INLINE_SIM_BITS(unsigned8) ROTR8 (unsigned8 val, int shift);
|
568 |
|
|
INLINE_SIM_BITS(unsigned16) ROTR16 (unsigned16 val, int shift);
|
569 |
|
|
INLINE_SIM_BITS(unsigned32) ROTR32 (unsigned32 val, int shift);
|
570 |
|
|
INLINE_SIM_BITS(unsigned64) ROTR64 (unsigned64 val, int shift);
|
571 |
|
|
|
572 |
|
|
|
573 |
|
|
|
574 |
|
|
/* Sign extension operations */
|
575 |
|
|
|
576 |
|
|
INLINE_SIM_BITS(unsigned8) LSSEXT8 (signed8 val, int sign_bit);
|
577 |
|
|
INLINE_SIM_BITS(unsigned16) LSSEXT16 (signed16 val, int sign_bit);
|
578 |
|
|
INLINE_SIM_BITS(unsigned32) LSSEXT32 (signed32 val, int sign_bit);
|
579 |
|
|
INLINE_SIM_BITS(unsigned64) LSSEXT64 (signed64 val, int sign_bit);
|
580 |
|
|
INLINE_SIM_BITS(unsigned_word) LSSEXT (signed_word val, int sign_bit);
|
581 |
|
|
|
582 |
|
|
INLINE_SIM_BITS(unsigned8) MSSEXT8 (signed8 val, int sign_bit);
|
583 |
|
|
INLINE_SIM_BITS(unsigned16) MSSEXT16 (signed16 val, int sign_bit);
|
584 |
|
|
INLINE_SIM_BITS(unsigned32) MSSEXT32 (signed32 val, int sign_bit);
|
585 |
|
|
INLINE_SIM_BITS(unsigned64) MSSEXT64 (signed64 val, int sign_bit);
|
586 |
|
|
INLINE_SIM_BITS(unsigned_word) MSSEXT (signed_word val, int sign_bit);
|
587 |
|
|
|
588 |
|
|
#if (WITH_TARGET_WORD_MSB == 0)
|
589 |
|
|
#define SEXT8 MSSEXT8
|
590 |
|
|
#define SEXT16 MSSEXT16
|
591 |
|
|
#define SEXT32 MSSEXT32
|
592 |
|
|
#define SEXT64 MSSEXT64
|
593 |
|
|
#define SEXT MSSEXT
|
594 |
|
|
#else
|
595 |
|
|
#define SEXT8 LSSEXT8
|
596 |
|
|
#define SEXT16 LSSEXT16
|
597 |
|
|
#define SEXT32 LSSEXT32
|
598 |
|
|
#define SEXT64 LSSEXT64
|
599 |
|
|
#define SEXT LSSEXT
|
600 |
|
|
#endif
|
601 |
|
|
|
602 |
|
|
|
603 |
|
|
|
604 |
|
|
#if H_REVEALS_MODULE_P (SIM_BITS_INLINE)
|
605 |
|
|
#include "sim-bits.c"
|
606 |
|
|
#endif
|
607 |
|
|
|
608 |
|
|
#endif /* _SIM_BITS_H_ */
|