| /* This file is part of the program psim. |
| |
| Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au> |
| Copyright (C) 1997, Free Software Foundation, Inc. |
| |
| 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 2 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, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| |
| */ |
| |
| |
| #ifndef _SIM_BITS_H_ |
| #define _SIM_BITS_H_ |
| |
| |
| /* Bit manipulation routines: |
| |
| Bit numbering: The bits are numbered according to the target ISA's |
| convention. That being controlled by WITH_TARGET_WORD_MSB. For |
| the PowerPC (WITH_TARGET_WORD_MSB == 0) the numbering is 0..31 |
| while for the MIPS (WITH_TARGET_WORD_MSB == 31) it is 31..0. |
| |
| Size convention: Each macro is in three forms - <MACRO>32 which |
| operates in 32bit quantity (bits are numbered 0..31); <MACRO>64 |
| which operates using 64bit quantites (and bits are numbered 0..63); |
| and <MACRO> which operates using the bit size of the target |
| architecture (bits are still numbered 0..63), with 32bit |
| architectures ignoring the first 32bits leaving bit 32 as the most |
| significant. |
| |
| NB: Use EXTRACTED, MSEXTRACTED and LSEXTRACTED as a guideline for |
| naming. LSMASK and LSMASKED are wrong. |
| |
| BIT*(POS): `*' bit constant with just 1 bit set. |
| |
| LSBIT*(OFFSET): `*' bit constant with just 1 bit set - LS bit is |
| zero. |
| |
| MSBIT*(OFFSET): `*' bit constant with just 1 bit set - MS bit is |
| zero. |
| |
| MASK*(FIRST, LAST): `*' bit constant with bits [FIRST .. LAST] |
| set. The <MACRO> (no size) version permits FIRST >= LAST and |
| generates a wrapped bit mask vis ([0..LAST] | [FIRST..LSB]). |
| |
| LSMASK*(FIRST, LAST): Like MASK - LS bit is zero. |
| |
| MSMASK*(FIRST, LAST): Like MASK - LS bit is zero. |
| |
| MASKED*(VALUE, FIRST, LAST): Masks out all but bits [FIRST |
| .. LAST]. |
| |
| LSMASKED*(VALUE, FIRST, LAST): Like MASKED - LS bit is zero. |
| |
| MSMASKED*(VALUE, FIRST, LAST): Like MASKED - MS bit is zero. |
| |
| EXTRACTED*(VALUE, FIRST, LAST): Masks out bits [FIRST .. LAST] but |
| also right shifts the masked value so that bit LAST becomes the |
| least significant (right most). |
| |
| LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is |
| zero. |
| |
| MSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - MS bit is |
| zero. |
| |
| SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD |
| new NEW. |
| |
| MOVED**(VALUE, OLD_FIRST, OLD_LAST, NEW_FIRST, NEW_LAST): Moves |
| things around so that bits OLD_FIRST..OLD_LAST are masked then |
| moved to NEW_FIRST..NEW_LAST. |
| |
| INSERTED*(VALUE, FIRST, LAST): Takes VALUE and `inserts' the (LAST |
| - FIRST + 1) least significant bits into bit positions [ FIRST |
| .. LAST ]. This is almost the complement to EXTRACTED. |
| |
| IEA_MASKED(SHOULD_MASK, ADDR): Convert the address to the targets |
| natural size. If in 32bit mode, discard the high 32bits. |
| |
| EXTEND*(VALUE): Convert the `*' bit value to the targets natural |
| word size. Sign extend the value if needed. |
| |
| ALIGN_*(VALUE): Round the value upwards so that it is aligned to a |
| `_*' byte boundary. |
| |
| FLOOR_*(VALUE): Truncate the value so that it is aligned to a `_*' |
| byte boundary. |
| |
| ROT*(VALUE, NR_BITS): Return the `*' bit VALUE rotated by NR_BITS |
| right (positive) or left (negative). |
| |
| ROTL*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS |
| left. 0 <= NR_BITS <= `*'. |
| |
| ROTR*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS |
| right. 0 <= NR_BITS <= N. |
| |
| SEXT*(VALUE, SIGN_BIT): Treat SIGN_BIT as VALUEs sign, extend it ti |
| `*' bits. |
| |
| Note: Only the BIT* and MASK* macros return a constant that can be |
| used in variable declarations. |
| |
| */ |
| |
| |
| /* compute the number of bits between START and STOP */ |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _MAKE_WIDTH(START, STOP) (STOP - START + 1) |
| #else |
| #define _MAKE_WIDTH(START, STOP) (START - STOP + 1) |
| #endif |
| |
| |
| |
| /* compute the number shifts required to move a bit between LSB (MSB) |
| and POS */ |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _LSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS) |
| #else |
| #define _LSB_SHIFT(WIDTH, POS) (POS) |
| #endif |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _MSB_SHIFT(WIDTH, POS) (POS) |
| #else |
| #define _MSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS) |
| #endif |
| |
| |
| /* compute the absolute bit position given the OFFSET from the MSB(LSB) |
| NB: _MAKE_xxx_POS (WIDTH, _MAKE_xxx_SHIFT (WIDTH, POS)) == POS */ |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _MSB_POS(WIDTH, SHIFT) (SHIFT) |
| #else |
| #define _MSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT) |
| #endif |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _LSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT) |
| #else |
| #define _LSB_POS(WIDTH, SHIFT) (SHIFT) |
| #endif |
| |
| |
| /* convert a 64 bit position into a corresponding 32bit position. MSB |
| pos handles the posibility that the bit lies beyond the 32bit |
| boundary */ |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _MSB_32(START, STOP) (START <= STOP \ |
| ? (START < 32 ? 0 : START - 32) \ |
| : (STOP < 32 ? 0 : STOP - 32)) |
| #define _MSB_16(START, STOP) (START <= STOP \ |
| ? (START < 48 ? 0 : START - 48) \ |
| : (STOP < 48 ? 0 : STOP - 48)) |
| #else |
| #define _MSB_32(START, STOP) (START >= STOP \ |
| ? (START >= 32 ? 31 : START) \ |
| : (STOP >= 32 ? 31 : STOP)) |
| #define _MSB_16(START, STOP) (START >= STOP \ |
| ? (START >= 16 ? 15 : START) \ |
| : (STOP >= 16 ? 15 : STOP)) |
| #endif |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _LSB_32(START, STOP) (START <= STOP \ |
| ? (STOP < 32 ? 0 : STOP - 32) \ |
| : (START < 32 ? 0 : START - 32)) |
| #define _LSB_16(START, STOP) (START <= STOP \ |
| ? (STOP < 48 ? 0 : STOP - 48) \ |
| : (START < 48 ? 0 : START - 48)) |
| #else |
| #define _LSB_32(START, STOP) (START >= STOP \ |
| ? (STOP >= 32 ? 31 : STOP) \ |
| : (START >= 32 ? 31 : START)) |
| #define _LSB_16(START, STOP) (START >= STOP \ |
| ? (STOP >= 16 ? 15 : STOP) \ |
| : (START >= 16 ? 15 : START)) |
| #endif |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _MSB(START, STOP) (START <= STOP ? START : STOP) |
| #else |
| #define _MSB(START, STOP) (START >= STOP ? START : STOP) |
| #endif |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _LSB(START, STOP) (START <= STOP ? STOP : START) |
| #else |
| #define _LSB(START, STOP) (START >= STOP ? STOP : START) |
| #endif |
| |
| |
| /* LS/MS Bit operations */ |
| |
| #define LSBIT8(POS) ((unsigned8) 1 << (POS)) |
| #define LSBIT16(POS) ((unsigned16)1 << (POS)) |
| #define LSBIT32(POS) ((unsigned32)1 << (POS)) |
| #define LSBIT64(POS) ((unsigned64)1 << (POS)) |
| |
| #if (WITH_TARGET_WORD_BITSIZE == 64) |
| #define LSBIT(POS) LSBIT64 (POS) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 32) |
| #define LSBIT(POS) ((unsigned32)((POS) >= 32 \ |
| ? 0 \ |
| : (1 << ((POS) >= 32 ? 0 : (POS))))) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 16) |
| #define LSBIT(POS) ((unsigned16)((POS) >= 16 \ |
| ? 0 \ |
| : (1 << ((POS) >= 16 ? 0 : (POS))))) |
| #endif |
| |
| |
| #define MSBIT8(POS) ((unsigned8) 1 << ( 8 - 1 - (POS))) |
| #define MSBIT16(POS) ((unsigned16)1 << (16 - 1 - (POS))) |
| #define MSBIT32(POS) ((unsigned32)1 << (32 - 1 - (POS))) |
| #define MSBIT64(POS) ((unsigned64)1 << (64 - 1 - (POS))) |
| |
| #if (WITH_TARGET_WORD_BITSIZE == 64) |
| #define MSBIT(POS) MSBIT64 (POS) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 32) |
| #define MSBIT(POS) ((unsigned32)((POS) < 32 \ |
| ? 0 \ |
| : (1 << ((POS) < 32 ? 0 : (64 - 1) - (POS))))) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 16) |
| #define MSBIT(POS) ((unsigned16)((POS) < 48 \ |
| ? 0 \ |
| : (1 << ((POS) < 48 ? 0 : (64 - 1) - (POS))))) |
| #endif |
| |
| |
| /* Bit operations */ |
| |
| #define BIT4(POS) (1 << _LSB_SHIFT (4, (POS))) |
| #define BIT5(POS) (1 << _LSB_SHIFT (5, (POS))) |
| #define BIT10(POS) (1 << _LSB_SHIFT (10, (POS))) |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define BIT8 MSBIT8 |
| #define BIT16 MSBIT16 |
| #define BIT32 MSBIT32 |
| #define BIT64 MSBIT64 |
| #define BIT MSBIT |
| #else |
| #define BIT8 LSBIT8 |
| #define BIT16 LSBIT16 |
| #define BIT32 LSBIT32 |
| #define BIT64 LSBIT64 |
| #define BIT LSBIT |
| #endif |
| |
| |
| |
| /* multi bit mask */ |
| |
| /* 111111 -> mmll11 -> mm11ll */ |
| #define _MASKn(WIDTH, START, STOP) (((unsigned##WIDTH)(-1) \ |
| >> (_MSB_SHIFT (WIDTH, START) \ |
| + _LSB_SHIFT (WIDTH, STOP))) \ |
| << _LSB_SHIFT (WIDTH, STOP)) |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define _POS_LE(START, STOP) (START <= STOP) |
| #else |
| #define _POS_LE(START, STOP) (STOP <= START) |
| #endif |
| |
| #if (WITH_TARGET_WORD_BITSIZE == 64) |
| #define MASK(START, STOP) \ |
| (_POS_LE ((START), (STOP)) \ |
| ? _MASKn(64, \ |
| _MSB ((START), (STOP)), \ |
| _LSB ((START), (STOP)) ) \ |
| : (_MASKn(64, _MSB_POS (64, 0), (STOP)) \ |
| | _MASKn(64, (START), _LSB_POS (64, 0)))) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 32) |
| #define MASK(START, STOP) \ |
| (_POS_LE ((START), (STOP)) \ |
| ? (_POS_LE ((STOP), _MSB_POS (64, 31)) \ |
| ? 0 \ |
| : _MASKn (32, \ |
| _MSB_32 ((START), (STOP)), \ |
| _LSB_32 ((START), (STOP)))) \ |
| : (_MASKn (32, \ |
| _LSB_32 ((START), (STOP)), \ |
| _LSB_POS (32, 0)) \ |
| | (_POS_LE ((STOP), _MSB_POS (64, 31)) \ |
| ? 0 \ |
| : _MASKn (32, \ |
| _MSB_POS (32, 0), \ |
| _MSB_32 ((START), (STOP)))))) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 16) |
| #define MASK(START, STOP) \ |
| (_POS_LE ((START), (STOP)) \ |
| ? (_POS_LE ((STOP), _MSB_POS (64, 15)) \ |
| ? 0 \ |
| : _MASKn (16, \ |
| _MSB_16 ((START), (STOP)), \ |
| _LSB_16 ((START), (STOP)))) \ |
| : (_MASKn (16, \ |
| _LSB_16 ((START), (STOP)), \ |
| _LSB_POS (16, 0)) \ |
| | (_POS_LE ((STOP), _MSB_POS (64, 15)) \ |
| ? 0 \ |
| : _MASKn (16, \ |
| _MSB_POS (16, 0), \ |
| _MSB_16 ((START), (STOP)))))) |
| #endif |
| #if !defined (MASK) |
| #error "MASK never undefined" |
| #endif |
| |
| |
| /* Multi-bit mask on least significant bits */ |
| |
| #define _LSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \ |
| _LSB_POS (WIDTH, FIRST), \ |
| _LSB_POS (WIDTH, LAST)) |
| |
| #define LSMASK8(FIRST, LAST) _LSMASKn ( 8, (FIRST), (LAST)) |
| #define LSMASK16(FIRST, LAST) _LSMASKn (16, (FIRST), (LAST)) |
| #define LSMASK32(FIRST, LAST) _LSMASKn (32, (FIRST), (LAST)) |
| #define LSMASK64(FIRST, LAST) _LSMASKn (64, (FIRST), (LAST)) |
| |
| #define LSMASK(FIRST, LAST) (MASK (_LSB_POS (64, FIRST), _LSB_POS (64, LAST))) |
| |
| |
| /* Multi-bit mask on most significant bits */ |
| |
| #define _MSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \ |
| _MSB_POS (WIDTH, FIRST), \ |
| _MSB_POS (WIDTH, LAST)) |
| |
| #define MSMASK8(FIRST, LAST) _MSMASKn ( 8, (FIRST), (LAST)) |
| #define MSMASK16(FIRST, LAST) _MSMASKn (16, (FIRST), (LAST)) |
| #define MSMASK32(FIRST, LAST) _MSMASKn (32, (FIRST), (LAST)) |
| #define MSMASK64(FIRST, LAST) _MSMASKn (64, (FIRST), (LAST)) |
| |
| #define MSMASK(FIRST, LAST) (MASK (_MSB_POS (64, FIRST), _MSB_POS (64, LAST))) |
| |
| |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define MASK8 MSMASK8 |
| #define MASK16 MSMASK16 |
| #define MASK32 MSMASK32 |
| #define MASK64 MSMASK64 |
| #else |
| #define MASK8 LSMASK8 |
| #define MASK16 LSMASK16 |
| #define MASK32 LSMASK32 |
| #define MASK64 LSMASK64 |
| #endif |
| |
| |
| |
| /* mask the required bits, leaving them in place */ |
| |
| INLINE_SIM_BITS(unsigned8) LSMASKED8 (unsigned8 word, int first, int last); |
| INLINE_SIM_BITS(unsigned16) LSMASKED16 (unsigned16 word, int first, int last); |
| INLINE_SIM_BITS(unsigned32) LSMASKED32 (unsigned32 word, int first, int last); |
| INLINE_SIM_BITS(unsigned64) LSMASKED64 (unsigned64 word, int first, int last); |
| |
| INLINE_SIM_BITS(unsigned_word) LSMASKED (unsigned_word word, int first, int last); |
| |
| INLINE_SIM_BITS(unsigned8) MSMASKED8 (unsigned8 word, int first, int last); |
| INLINE_SIM_BITS(unsigned16) MSMASKED16 (unsigned16 word, int first, int last); |
| INLINE_SIM_BITS(unsigned32) MSMASKED32 (unsigned32 word, int first, int last); |
| INLINE_SIM_BITS(unsigned64) MSMASKED64 (unsigned64 word, int first, int last); |
| |
| INLINE_SIM_BITS(unsigned_word) MSMASKED (unsigned_word word, int first, int last); |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define MASKED8 MSMASKED8 |
| #define MASKED16 MSMASKED16 |
| #define MASKED32 MSMASKED32 |
| #define MASKED64 MSMASKED64 |
| #define MASKED MSMASKED |
| #else |
| #define MASKED8 LSMASKED8 |
| #define MASKED16 LSMASKED16 |
| #define MASKED32 LSMASKED32 |
| #define MASKED64 LSMASKED64 |
| #define MASKED LSMASKED |
| #endif |
| |
| |
| |
| /* extract the required bits aligning them with the lsb */ |
| |
| INLINE_SIM_BITS(unsigned8) LSEXTRACTED8 (unsigned8 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned16) LSEXTRACTED16 (unsigned16 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned32) LSEXTRACTED32 (unsigned32 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned64) LSEXTRACTED64 (unsigned64 val, int start, int stop); |
| |
| INLINE_SIM_BITS(unsigned_word) LSEXTRACTED (unsigned_word val, int start, int stop); |
| |
| INLINE_SIM_BITS(unsigned8) MSEXTRACTED8 (unsigned8 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned16) MSEXTRACTED16 (unsigned16 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned32) MSEXTRACTED32 (unsigned32 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned64) MSEXTRACTED64 (unsigned64 val, int start, int stop); |
| |
| INLINE_SIM_BITS(unsigned_word) MSEXTRACTED (unsigned_word val, int start, int stop); |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define EXTRACTED8 MSEXTRACTED8 |
| #define EXTRACTED16 MSEXTRACTED16 |
| #define EXTRACTED32 MSEXTRACTED32 |
| #define EXTRACTED64 MSEXTRACTED64 |
| #define EXTRACTED MSEXTRACTED |
| #else |
| #define EXTRACTED8 LSEXTRACTED8 |
| #define EXTRACTED16 LSEXTRACTED16 |
| #define EXTRACTED32 LSEXTRACTED32 |
| #define EXTRACTED64 LSEXTRACTED64 |
| #define EXTRACTED LSEXTRACTED |
| #endif |
| |
| |
| |
| /* move a single bit around */ |
| /* NB: the wierdness (N>O?N-O:0) is to stop a warning from GCC */ |
| #define _SHUFFLEDn(N, WORD, OLD, NEW) \ |
| ((OLD) < (NEW) \ |
| ? (((unsigned##N)(WORD) \ |
| >> (((NEW) > (OLD)) ? ((NEW) - (OLD)) : 0)) \ |
| & MASK32((NEW), (NEW))) \ |
| : (((unsigned##N)(WORD) \ |
| << (((OLD) > (NEW)) ? ((OLD) - (NEW)) : 0)) \ |
| & MASK32((NEW), (NEW)))) |
| |
| #define SHUFFLED32(WORD, OLD, NEW) _SHUFFLEDn (32, WORD, OLD, NEW) |
| #define SHUFFLED64(WORD, OLD, NEW) _SHUFFLEDn (64, WORD, OLD, NEW) |
| |
| #define SHUFFLED(WORD, OLD, NEW) _SHUFFLEDn (_word, WORD, OLD, NEW) |
| |
| |
| /* Insert a group of bits into a bit position */ |
| |
| INLINE_SIM_BITS(unsigned8) LSINSERTED8 (unsigned8 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned16) LSINSERTED16 (unsigned16 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned32) LSINSERTED32 (unsigned32 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned64) LSINSERTED64 (unsigned64 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned_word) LSINSERTED (unsigned_word val, int start, int stop); |
| |
| INLINE_SIM_BITS(unsigned8) MSINSERTED8 (unsigned8 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned16) MSINSERTED16 (unsigned16 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned32) MSINSERTED32 (unsigned32 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned64) MSINSERTED64 (unsigned64 val, int start, int stop); |
| INLINE_SIM_BITS(unsigned_word) MSINSERTED (unsigned_word val, int start, int stop); |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define INSERTED8 MSINSERTED8 |
| #define INSERTED16 MSINSERTED16 |
| #define INSERTED32 MSINSERTED32 |
| #define INSERTED64 MSINSERTED64 |
| #define INSERTED MSINSERTED |
| #else |
| #define INSERTED8 LSINSERTED8 |
| #define INSERTED16 LSINSERTED16 |
| #define INSERTED32 LSINSERTED32 |
| #define INSERTED64 LSINSERTED64 |
| #define INSERTED LSINSERTED |
| #endif |
| |
| |
| |
| /* MOVE bits from one loc to another (combination of extract/insert) */ |
| |
| #define MOVED8(VAL,OH,OL,NH,NL) INSERTED8 (EXTRACTED8 ((VAL), OH, OL), NH, NL) |
| #define MOVED16(VAL,OH,OL,NH,NL) INSERTED16(EXTRACTED16((VAL), OH, OL), NH, NL) |
| #define MOVED32(VAL,OH,OL,NH,NL) INSERTED32(EXTRACTED32((VAL), OH, OL), NH, NL) |
| #define MOVED64(VAL,OH,OL,NH,NL) INSERTED64(EXTRACTED64((VAL), OH, OL), NH, NL) |
| #define MOVED(VAL,OH,OL,NH,NL) INSERTED (EXTRACTED ((VAL), OH, OL), NH, NL) |
| |
| |
| |
| /* Sign extend the quantity to the targets natural word size */ |
| |
| #define EXTEND4(X) (LSSEXT ((X), 3)) |
| #define EXTEND5(X) (LSSEXT ((X), 4)) |
| #define EXTEND8(X) ((signed_word)(signed8)(X)) |
| #define EXTEND11(X) (LSSEXT ((X), 10)) |
| #define EXTEND15(X) (LSSEXT ((X), 14)) |
| #define EXTEND16(X) ((signed_word)(signed16)(X)) |
| #define EXTEND24(X) (LSSEXT ((X), 23)) |
| #define EXTEND32(X) ((signed_word)(signed32)(X)) |
| #define EXTEND64(X) ((signed_word)(signed64)(X)) |
| |
| /* depending on MODE return a 64bit or 32bit (sign extended) value */ |
| #if (WITH_TARGET_WORD_BITSIZE == 64) |
| #define EXTENDED(X) ((signed64)(signed32)(X)) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 32) |
| #define EXTENDED(X) (X) |
| #endif |
| #if (WITH_TARGET_WORD_BITSIZE == 16) |
| #define EXTENDED(X) (X) |
| #endif |
| |
| |
| /* memory alignment macro's */ |
| #define _ALIGNa(A,X) (((X) + ((A) - 1)) & ~((A) - 1)) |
| #define _FLOORa(A,X) ((X) & ~((A) - 1)) |
| |
| #define ALIGN_8(X) _ALIGNa (8, X) |
| #define ALIGN_16(X) _ALIGNa (16, X) |
| |
| #define ALIGN_PAGE(X) _ALIGNa (0x1000, X) |
| #define FLOOR_PAGE(X) ((X) & ~(0x1000 - 1)) |
| |
| |
| /* bit bliting macro's */ |
| #define BLIT32(V, POS, BIT) \ |
| do { \ |
| if (BIT) \ |
| V |= BIT32 (POS); \ |
| else \ |
| V &= ~BIT32 (POS); \ |
| } while (0) |
| #define MBLIT32(V, LO, HI, VAL) \ |
| do { \ |
| (V) = (((V) & ~MASK32 ((LO), (HI))) \ |
| | INSERTED32 (VAL, LO, HI)); \ |
| } while (0) |
| |
| |
| |
| /* some rotate functions. The generic macro's ROT, ROTL, ROTR are |
| intentionally omited. */ |
| |
| |
| INLINE_SIM_BITS(unsigned8) ROT8 (unsigned8 val, int shift); |
| INLINE_SIM_BITS(unsigned16) ROT16 (unsigned16 val, int shift); |
| INLINE_SIM_BITS(unsigned32) ROT32 (unsigned32 val, int shift); |
| INLINE_SIM_BITS(unsigned64) ROT64 (unsigned64 val, int shift); |
| |
| |
| INLINE_SIM_BITS(unsigned8) ROTL8 (unsigned8 val, int shift); |
| INLINE_SIM_BITS(unsigned16) ROTL16 (unsigned16 val, int shift); |
| INLINE_SIM_BITS(unsigned32) ROTL32 (unsigned32 val, int shift); |
| INLINE_SIM_BITS(unsigned64) ROTL64 (unsigned64 val, int shift); |
| |
| |
| INLINE_SIM_BITS(unsigned8) ROTR8 (unsigned8 val, int shift); |
| INLINE_SIM_BITS(unsigned16) ROTR16 (unsigned16 val, int shift); |
| INLINE_SIM_BITS(unsigned32) ROTR32 (unsigned32 val, int shift); |
| INLINE_SIM_BITS(unsigned64) ROTR64 (unsigned64 val, int shift); |
| |
| |
| |
| /* Sign extension operations */ |
| |
| INLINE_SIM_BITS(unsigned8) LSSEXT8 (signed8 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned16) LSSEXT16 (signed16 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned32) LSSEXT32 (signed32 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned64) LSSEXT64 (signed64 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned_word) LSSEXT (signed_word val, int sign_bit); |
| |
| INLINE_SIM_BITS(unsigned8) MSSEXT8 (signed8 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned16) MSSEXT16 (signed16 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned32) MSSEXT32 (signed32 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned64) MSSEXT64 (signed64 val, int sign_bit); |
| INLINE_SIM_BITS(unsigned_word) MSSEXT (signed_word val, int sign_bit); |
| |
| #if (WITH_TARGET_WORD_MSB == 0) |
| #define SEXT8 MSSEXT8 |
| #define SEXT16 MSSEXT16 |
| #define SEXT32 MSSEXT32 |
| #define SEXT64 MSSEXT64 |
| #define SEXT MSSEXT |
| #else |
| #define SEXT8 LSSEXT8 |
| #define SEXT16 LSSEXT16 |
| #define SEXT32 LSSEXT32 |
| #define SEXT64 LSSEXT64 |
| #define SEXT LSSEXT |
| #endif |
| |
| |
| |
| #if H_REVEALS_MODULE_P (SIM_BITS_INLINE) |
| #include "sim-bits.c" |
| #endif |
| |
| #endif /* _SIM_BITS_H_ */ |
