1 /* The common simulator framework for GDB, the GNU Debugger.
3 Copyright 2002-2021 Free Software Foundation, Inc.
5 Contributed by Andrew Cagney and Red Hat.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
27 /* Bit manipulation routines:
29 Bit numbering: The bits are numbered according to the target ISA's
30 convention. That being controlled by WITH_TARGET_WORD_MSB. For
31 the PowerPC (WITH_TARGET_WORD_MSB == 0) the numbering is 0..31
32 while for the MIPS (WITH_TARGET_WORD_MSB == 31) it is 31..0.
34 Size convention: Each macro is in three forms - <MACRO>32 which
35 operates in 32bit quantity (bits are numbered 0..31); <MACRO>64
36 which operates using 64bit quantites (and bits are numbered 0..63);
37 and <MACRO> which operates using the bit size of the target
38 architecture (bits are still numbered 0..63), with 32bit
39 architectures ignoring the first 32bits leaving bit 32 as the most
42 NB: Use EXTRACTED, MSEXTRACTED and LSEXTRACTED as a guideline for
43 naming. LSMASK and LSMASKED are wrong.
45 BIT*(POS): `*' bit constant with just 1 bit set.
47 LSBIT*(OFFSET): `*' bit constant with just 1 bit set - LS bit is
50 MSBIT*(OFFSET): `*' bit constant with just 1 bit set - MS bit is
53 MASK*(FIRST, LAST): `*' bit constant with bits [FIRST .. LAST]
54 set. The <MACRO> (no size) version permits FIRST >= LAST and
55 generates a wrapped bit mask vis ([0..LAST] | [FIRST..LSB]).
57 LSMASK*(FIRST, LAST): Like MASK - LS bit is zero.
59 MSMASK*(FIRST, LAST): Like MASK - LS bit is zero.
61 MASKED*(VALUE, FIRST, LAST): Masks out all but bits [FIRST
64 LSMASKED*(VALUE, FIRST, LAST): Like MASKED - LS bit is zero.
66 MSMASKED*(VALUE, FIRST, LAST): Like MASKED - MS bit is zero.
68 EXTRACTED*(VALUE, FIRST, LAST): Masks out bits [FIRST .. LAST] but
69 also right shifts the masked value so that bit LAST becomes the
70 least significant (right most).
72 LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is
75 MSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - MS bit is
78 SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD
81 MOVED**(VALUE, OLD_FIRST, OLD_LAST, NEW_FIRST, NEW_LAST): Moves
82 things around so that bits OLD_FIRST..OLD_LAST are masked then
83 moved to NEW_FIRST..NEW_LAST.
85 INSERTED*(VALUE, FIRST, LAST): Takes VALUE and `inserts' the (LAST
86 - FIRST + 1) least significant bits into bit positions [ FIRST
87 .. LAST ]. This is almost the complement to EXTRACTED.
89 IEA_MASKED(SHOULD_MASK, ADDR): Convert the address to the targets
90 natural size. If in 32bit mode, discard the high 32bits.
92 EXTEND*(VALUE): Convert the `*' bit value to the targets natural
93 word size. Sign extend the value if needed.
95 align_*(VALUE, BYTES): Round the value so that it is aligned to a
98 ROT*(VALUE, NR_BITS): Return the `*' bit VALUE rotated by NR_BITS
99 right (positive) or left (negative).
101 ROTL*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS
102 left. 0 <= NR_BITS <= `*'.
104 ROTR*(VALUE, NR_BITS): Return the `*' bit value rotated by NR_BITS
105 right. 0 <= NR_BITS <= N.
107 SEXT*(VALUE, SIGN_BIT): Treat SIGN_BIT as VALUEs sign, extend it ti
110 Note: Only the BIT* and MASK* macros return a constant that can be
111 used in variable declarations.
116 /* compute the number of bits between START and STOP */
118 #if (WITH_TARGET_WORD_MSB == 0)
119 #define _MAKE_WIDTH(START, STOP) (STOP - START + 1)
121 #define _MAKE_WIDTH(START, STOP) (START - STOP + 1)
126 /* compute the number shifts required to move a bit between LSB (MSB)
129 #if (WITH_TARGET_WORD_MSB == 0)
130 #define _LSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS)
132 #define _LSB_SHIFT(WIDTH, POS) (POS)
135 #if (WITH_TARGET_WORD_MSB == 0)
136 #define _MSB_SHIFT(WIDTH, POS) (POS)
138 #define _MSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS)
142 /* compute the absolute bit position given the OFFSET from the MSB(LSB)
143 NB: _MAKE_xxx_POS (WIDTH, _MAKE_xxx_SHIFT (WIDTH, POS)) == POS */
145 #if (WITH_TARGET_WORD_MSB == 0)
146 #define _MSB_POS(WIDTH, SHIFT) (SHIFT)
148 #define _MSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT)
151 #if (WITH_TARGET_WORD_MSB == 0)
152 #define _LSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT)
154 #define _LSB_POS(WIDTH, SHIFT) (SHIFT)
158 /* convert a 64 bit position into a corresponding 32bit position. MSB
159 pos handles the posibility that the bit lies beyond the 32bit
162 #if (WITH_TARGET_WORD_MSB == 0)
163 #define _MSB_32(START, STOP) (START <= STOP \
164 ? (START < 32 ? 0 : START - 32) \
165 : (STOP < 32 ? 0 : STOP - 32))
166 #define _MSB_16(START, STOP) (START <= STOP \
167 ? (START < 48 ? 0 : START - 48) \
168 : (STOP < 48 ? 0 : STOP - 48))
170 #define _MSB_32(START, STOP) (START >= STOP \
171 ? (START >= 32 ? 31 : START) \
172 : (STOP >= 32 ? 31 : STOP))
173 #define _MSB_16(START, STOP) (START >= STOP \
174 ? (START >= 16 ? 15 : START) \
175 : (STOP >= 16 ? 15 : STOP))
178 #if (WITH_TARGET_WORD_MSB == 0)
179 #define _LSB_32(START, STOP) (START <= STOP \
180 ? (STOP < 32 ? 0 : STOP - 32) \
181 : (START < 32 ? 0 : START - 32))
182 #define _LSB_16(START, STOP) (START <= STOP \
183 ? (STOP < 48 ? 0 : STOP - 48) \
184 : (START < 48 ? 0 : START - 48))
186 #define _LSB_32(START, STOP) (START >= STOP \
187 ? (STOP >= 32 ? 31 : STOP) \
188 : (START >= 32 ? 31 : START))
189 #define _LSB_16(START, STOP) (START >= STOP \
190 ? (STOP >= 16 ? 15 : STOP) \
191 : (START >= 16 ? 15 : START))
194 #if (WITH_TARGET_WORD_MSB == 0)
195 #define _MSB(START, STOP) (START <= STOP ? START : STOP)
197 #define _MSB(START, STOP) (START >= STOP ? START : STOP)
200 #if (WITH_TARGET_WORD_MSB == 0)
201 #define _LSB(START, STOP) (START <= STOP ? STOP : START)
203 #define _LSB(START, STOP) (START >= STOP ? STOP : START)
207 /* LS/MS Bit operations */
209 #define LSBIT8(POS) ((unsigned8) 1 << (POS))
210 #define LSBIT16(POS) ((unsigned16)1 << (POS))
211 #define LSBIT32(POS) ((unsigned32)1 << (POS))
212 #define LSBIT64(POS) ((unsigned64)1 << (POS))
214 #if (WITH_TARGET_WORD_BITSIZE == 64)
215 #define LSBIT(POS) LSBIT64 (POS)
217 #if (WITH_TARGET_WORD_BITSIZE == 32)
218 #define LSBIT(POS) ((unsigned32)((POS) >= 32 \
220 : (1 << ((POS) >= 32 ? 0 : (POS)))))
222 #if (WITH_TARGET_WORD_BITSIZE == 16)
223 #define LSBIT(POS) ((unsigned16)((POS) >= 16 \
225 : (1 << ((POS) >= 16 ? 0 : (POS)))))
229 #define MSBIT8(POS) ((unsigned8) 1 << ( 8 - 1 - (POS)))
230 #define MSBIT16(POS) ((unsigned16)1 << (16 - 1 - (POS)))
231 #define MSBIT32(POS) ((unsigned32)1 << (32 - 1 - (POS)))
232 #define MSBIT64(POS) ((unsigned64)1 << (64 - 1 - (POS)))
234 #if (WITH_TARGET_WORD_BITSIZE == 64)
235 #define MSBIT(POS) MSBIT64 (POS)
237 #if (WITH_TARGET_WORD_BITSIZE == 32)
238 #define MSBIT(POS) ((unsigned32)((POS) < 32 \
240 : (1 << ((POS) < 32 ? 0 : (64 - 1) - (POS)))))
242 #if (WITH_TARGET_WORD_BITSIZE == 16)
243 #define MSBIT(POS) ((unsigned16)((POS) < 48 \
245 : (1 << ((POS) < 48 ? 0 : (64 - 1) - (POS)))))
251 #define BIT4(POS) (1 << _LSB_SHIFT (4, (POS)))
252 #define BIT5(POS) (1 << _LSB_SHIFT (5, (POS)))
253 #define BIT10(POS) (1 << _LSB_SHIFT (10, (POS)))
255 #if (WITH_TARGET_WORD_MSB == 0)
257 #define BIT16 MSBIT16
258 #define BIT32 MSBIT32
259 #define BIT64 MSBIT64
263 #define BIT16 LSBIT16
264 #define BIT32 LSBIT32
265 #define BIT64 LSBIT64
273 /* 111111 -> mmll11 -> mm11ll */
274 #define _MASKn(WIDTH, START, STOP) (((unsigned##WIDTH)(-1) \
275 >> (_MSB_SHIFT (WIDTH, START) \
276 + _LSB_SHIFT (WIDTH, STOP))) \
277 << _LSB_SHIFT (WIDTH, STOP))
279 #if (WITH_TARGET_WORD_MSB == 0)
280 #define _POS_LE(START, STOP) (START <= STOP)
282 #define _POS_LE(START, STOP) (STOP <= START)
285 #if (WITH_TARGET_WORD_BITSIZE == 64)
286 #define MASK(START, STOP) \
287 (_POS_LE ((START), (STOP)) \
289 _MSB ((START), (STOP)), \
290 _LSB ((START), (STOP)) ) \
291 : (_MASKn(64, _MSB_POS (64, 0), (STOP)) \
292 | _MASKn(64, (START), _LSB_POS (64, 0))))
294 #if (WITH_TARGET_WORD_BITSIZE == 32)
295 #define MASK(START, STOP) \
296 (_POS_LE ((START), (STOP)) \
297 ? (_POS_LE ((STOP), _MSB_POS (64, 31)) \
300 _MSB_32 ((START), (STOP)), \
301 _LSB_32 ((START), (STOP)))) \
303 _LSB_32 ((START), (STOP)), \
305 | (_POS_LE ((STOP), _MSB_POS (64, 31)) \
309 _MSB_32 ((START), (STOP))))))
311 #if (WITH_TARGET_WORD_BITSIZE == 16)
312 #define MASK(START, STOP) \
313 (_POS_LE ((START), (STOP)) \
314 ? (_POS_LE ((STOP), _MSB_POS (64, 15)) \
317 _MSB_16 ((START), (STOP)), \
318 _LSB_16 ((START), (STOP)))) \
320 _LSB_16 ((START), (STOP)), \
322 | (_POS_LE ((STOP), _MSB_POS (64, 15)) \
326 _MSB_16 ((START), (STOP))))))
329 #error "MASK never undefined"
333 /* Multi-bit mask on least significant bits */
335 #define _LSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \
336 _LSB_POS (WIDTH, FIRST), \
337 _LSB_POS (WIDTH, LAST))
339 #define LSMASK8(FIRST, LAST) _LSMASKn ( 8, (FIRST), (LAST))
340 #define LSMASK16(FIRST, LAST) _LSMASKn (16, (FIRST), (LAST))
341 #define LSMASK32(FIRST, LAST) _LSMASKn (32, (FIRST), (LAST))
342 #define LSMASK64(FIRST, LAST) _LSMASKn (64, (FIRST), (LAST))
344 #define LSMASK(FIRST, LAST) (MASK (_LSB_POS (64, FIRST), _LSB_POS (64, LAST)))
347 /* Multi-bit mask on most significant bits */
349 #define _MSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \
350 _MSB_POS (WIDTH, FIRST), \
351 _MSB_POS (WIDTH, LAST))
353 #define MSMASK8(FIRST, LAST) _MSMASKn ( 8, (FIRST), (LAST))
354 #define MSMASK16(FIRST, LAST) _MSMASKn (16, (FIRST), (LAST))
355 #define MSMASK32(FIRST, LAST) _MSMASKn (32, (FIRST), (LAST))
356 #define MSMASK64(FIRST, LAST) _MSMASKn (64, (FIRST), (LAST))
358 #define MSMASK(FIRST, LAST) (MASK (_MSB_POS (64, FIRST), _MSB_POS (64, LAST)))
362 #if (WITH_TARGET_WORD_MSB == 0)
363 #define MASK8 MSMASK8
364 #define MASK16 MSMASK16
365 #define MASK32 MSMASK32
366 #define MASK64 MSMASK64
368 #define MASK8 LSMASK8
369 #define MASK16 LSMASK16
370 #define MASK32 LSMASK32
371 #define MASK64 LSMASK64
376 /* mask the required bits, leaving them in place */
378 INLINE_SIM_BITS(unsigned8
) LSMASKED8 (unsigned8 word
, int first
, int last
);
379 INLINE_SIM_BITS(unsigned16
) LSMASKED16 (unsigned16 word
, int first
, int last
);
380 INLINE_SIM_BITS(unsigned32
) LSMASKED32 (unsigned32 word
, int first
, int last
);
381 INLINE_SIM_BITS(unsigned64
) LSMASKED64 (unsigned64 word
, int first
, int last
);
383 INLINE_SIM_BITS(unsigned_word
) LSMASKED (unsigned_word word
, int first
, int last
);
385 INLINE_SIM_BITS(unsigned8
) MSMASKED8 (unsigned8 word
, int first
, int last
);
386 INLINE_SIM_BITS(unsigned16
) MSMASKED16 (unsigned16 word
, int first
, int last
);
387 INLINE_SIM_BITS(unsigned32
) MSMASKED32 (unsigned32 word
, int first
, int last
);
388 INLINE_SIM_BITS(unsigned64
) MSMASKED64 (unsigned64 word
, int first
, int last
);
390 INLINE_SIM_BITS(unsigned_word
) MSMASKED (unsigned_word word
, int first
, int last
);
392 #if (WITH_TARGET_WORD_MSB == 0)
393 #define MASKED8 MSMASKED8
394 #define MASKED16 MSMASKED16
395 #define MASKED32 MSMASKED32
396 #define MASKED64 MSMASKED64
397 #define MASKED MSMASKED
399 #define MASKED8 LSMASKED8
400 #define MASKED16 LSMASKED16
401 #define MASKED32 LSMASKED32
402 #define MASKED64 LSMASKED64
403 #define MASKED LSMASKED
408 /* extract the required bits aligning them with the lsb */
410 INLINE_SIM_BITS(unsigned8
) LSEXTRACTED8 (unsigned8 val
, int start
, int stop
);
411 INLINE_SIM_BITS(unsigned16
) LSEXTRACTED16 (unsigned16 val
, int start
, int stop
);
412 INLINE_SIM_BITS(unsigned32
) LSEXTRACTED32 (unsigned32 val
, int start
, int stop
);
413 INLINE_SIM_BITS(unsigned64
) LSEXTRACTED64 (unsigned64 val
, int start
, int stop
);
415 INLINE_SIM_BITS(unsigned_word
) LSEXTRACTED (unsigned_word val
, int start
, int stop
);
417 INLINE_SIM_BITS(unsigned8
) MSEXTRACTED8 (unsigned8 val
, int start
, int stop
);
418 INLINE_SIM_BITS(unsigned16
) MSEXTRACTED16 (unsigned16 val
, int start
, int stop
);
419 INLINE_SIM_BITS(unsigned32
) MSEXTRACTED32 (unsigned32 val
, int start
, int stop
);
420 INLINE_SIM_BITS(unsigned64
) MSEXTRACTED64 (unsigned64 val
, int start
, int stop
);
422 INLINE_SIM_BITS(unsigned_word
) MSEXTRACTED (unsigned_word val
, int start
, int stop
);
424 #if (WITH_TARGET_WORD_MSB == 0)
425 #define EXTRACTED8 MSEXTRACTED8
426 #define EXTRACTED16 MSEXTRACTED16
427 #define EXTRACTED32 MSEXTRACTED32
428 #define EXTRACTED64 MSEXTRACTED64
429 #define EXTRACTED MSEXTRACTED
431 #define EXTRACTED8 LSEXTRACTED8
432 #define EXTRACTED16 LSEXTRACTED16
433 #define EXTRACTED32 LSEXTRACTED32
434 #define EXTRACTED64 LSEXTRACTED64
435 #define EXTRACTED LSEXTRACTED
440 /* move a single bit around */
441 /* NB: the wierdness (N>O?N-O:0) is to stop a warning from GCC */
442 #define _SHUFFLEDn(N, WORD, OLD, NEW) \
444 ? (((unsigned##N)(WORD) \
445 >> (((NEW) > (OLD)) ? ((NEW) - (OLD)) : 0)) \
446 & MASK32((NEW), (NEW))) \
447 : (((unsigned##N)(WORD) \
448 << (((OLD) > (NEW)) ? ((OLD) - (NEW)) : 0)) \
449 & MASK32((NEW), (NEW))))
451 #define SHUFFLED32(WORD, OLD, NEW) _SHUFFLEDn (32, WORD, OLD, NEW)
452 #define SHUFFLED64(WORD, OLD, NEW) _SHUFFLEDn (64, WORD, OLD, NEW)
454 #define SHUFFLED(WORD, OLD, NEW) _SHUFFLEDn (_word, WORD, OLD, NEW)
457 /* Insert a group of bits into a bit position */
459 INLINE_SIM_BITS(unsigned8
) LSINSERTED8 (unsigned8 val
, int start
, int stop
);
460 INLINE_SIM_BITS(unsigned16
) LSINSERTED16 (unsigned16 val
, int start
, int stop
);
461 INLINE_SIM_BITS(unsigned32
) LSINSERTED32 (unsigned32 val
, int start
, int stop
);
462 INLINE_SIM_BITS(unsigned64
) LSINSERTED64 (unsigned64 val
, int start
, int stop
);
463 INLINE_SIM_BITS(unsigned_word
) LSINSERTED (unsigned_word val
, int start
, int stop
);
465 INLINE_SIM_BITS(unsigned8
) MSINSERTED8 (unsigned8 val
, int start
, int stop
);
466 INLINE_SIM_BITS(unsigned16
) MSINSERTED16 (unsigned16 val
, int start
, int stop
);
467 INLINE_SIM_BITS(unsigned32
) MSINSERTED32 (unsigned32 val
, int start
, int stop
);
468 INLINE_SIM_BITS(unsigned64
) MSINSERTED64 (unsigned64 val
, int start
, int stop
);
469 INLINE_SIM_BITS(unsigned_word
) MSINSERTED (unsigned_word val
, int start
, int stop
);
471 #if (WITH_TARGET_WORD_MSB == 0)
472 #define INSERTED8 MSINSERTED8
473 #define INSERTED16 MSINSERTED16
474 #define INSERTED32 MSINSERTED32
475 #define INSERTED64 MSINSERTED64
476 #define INSERTED MSINSERTED
478 #define INSERTED8 LSINSERTED8
479 #define INSERTED16 LSINSERTED16
480 #define INSERTED32 LSINSERTED32
481 #define INSERTED64 LSINSERTED64
482 #define INSERTED LSINSERTED
487 /* MOVE bits from one loc to another (combination of extract/insert) */
489 #define MOVED8(VAL,OH,OL,NH,NL) INSERTED8 (EXTRACTED8 ((VAL), OH, OL), NH, NL)
490 #define MOVED16(VAL,OH,OL,NH,NL) INSERTED16(EXTRACTED16((VAL), OH, OL), NH, NL)
491 #define MOVED32(VAL,OH,OL,NH,NL) INSERTED32(EXTRACTED32((VAL), OH, OL), NH, NL)
492 #define MOVED64(VAL,OH,OL,NH,NL) INSERTED64(EXTRACTED64((VAL), OH, OL), NH, NL)
493 #define MOVED(VAL,OH,OL,NH,NL) INSERTED (EXTRACTED ((VAL), OH, OL), NH, NL)
497 /* Sign extend the quantity to the targets natural word size */
499 #define EXTEND4(X) (LSSEXT ((X), 3))
500 #define EXTEND5(X) (LSSEXT ((X), 4))
501 #define EXTEND6(X) (LSSEXT ((X), 5))
502 #define EXTEND8(X) ((signed_word)(signed8)(X))
503 #define EXTEND11(X) (LSSEXT ((X), 10))
504 #define EXTEND12(X) (LSSEXT ((X), 11))
505 #define EXTEND15(X) (LSSEXT ((X), 14))
506 #define EXTEND16(X) ((signed_word)(signed16)(X))
507 #define EXTEND24(X) (LSSEXT ((X), 23))
508 #define EXTEND25(X) (LSSEXT ((X), 24))
509 #define EXTEND32(X) ((signed_word)(signed32)(X))
510 #define EXTEND64(X) ((signed_word)(signed64)(X))
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))
516 #if (WITH_TARGET_WORD_BITSIZE == 32)
517 #define EXTENDED(X) (X)
519 #if (WITH_TARGET_WORD_BITSIZE == 16)
520 #define EXTENDED(X) (X)
524 /* memory alignment macro's */
525 #define align_up(v, n) (((v) + (n) - 1) & -(n))
526 #define align_down(v, n) ((v) & -(n))
529 /* bit bliting macro's */
530 #define BLIT32(V, POS, BIT) \
537 #define MBLIT32(V, LO, HI, VAL) \
539 (V) = (((V) & ~MASK32 ((LO), (HI))) \
540 | INSERTED32 (VAL, LO, HI)); \
545 /* some rotate functions. The generic macro's ROT, ROTL, ROTR are
546 intentionally omited. */
549 INLINE_SIM_BITS(unsigned8
) ROT8 (unsigned8 val
, int shift
);
550 INLINE_SIM_BITS(unsigned16
) ROT16 (unsigned16 val
, int shift
);
551 INLINE_SIM_BITS(unsigned32
) ROT32 (unsigned32 val
, int shift
);
552 INLINE_SIM_BITS(unsigned64
) ROT64 (unsigned64 val
, int shift
);
555 INLINE_SIM_BITS(unsigned8
) ROTL8 (unsigned8 val
, int shift
);
556 INLINE_SIM_BITS(unsigned16
) ROTL16 (unsigned16 val
, int shift
);
557 INLINE_SIM_BITS(unsigned32
) ROTL32 (unsigned32 val
, int shift
);
558 INLINE_SIM_BITS(unsigned64
) ROTL64 (unsigned64 val
, int shift
);
561 INLINE_SIM_BITS(unsigned8
) ROTR8 (unsigned8 val
, int shift
);
562 INLINE_SIM_BITS(unsigned16
) ROTR16 (unsigned16 val
, int shift
);
563 INLINE_SIM_BITS(unsigned32
) ROTR32 (unsigned32 val
, int shift
);
564 INLINE_SIM_BITS(unsigned64
) ROTR64 (unsigned64 val
, int shift
);
568 /* Sign extension operations */
570 INLINE_SIM_BITS(unsigned8
) LSSEXT8 (signed8 val
, int sign_bit
);
571 INLINE_SIM_BITS(unsigned16
) LSSEXT16 (signed16 val
, int sign_bit
);
572 INLINE_SIM_BITS(unsigned32
) LSSEXT32 (signed32 val
, int sign_bit
);
573 INLINE_SIM_BITS(unsigned64
) LSSEXT64 (signed64 val
, int sign_bit
);
574 INLINE_SIM_BITS(unsigned_word
) LSSEXT (signed_word val
, int sign_bit
);
576 INLINE_SIM_BITS(unsigned8
) MSSEXT8 (signed8 val
, int sign_bit
);
577 INLINE_SIM_BITS(unsigned16
) MSSEXT16 (signed16 val
, int sign_bit
);
578 INLINE_SIM_BITS(unsigned32
) MSSEXT32 (signed32 val
, int sign_bit
);
579 INLINE_SIM_BITS(unsigned64
) MSSEXT64 (signed64 val
, int sign_bit
);
580 INLINE_SIM_BITS(unsigned_word
) MSSEXT (signed_word val
, int sign_bit
);
582 #if (WITH_TARGET_WORD_MSB == 0)
583 #define SEXT8 MSSEXT8
584 #define SEXT16 MSSEXT16
585 #define SEXT32 MSSEXT32
586 #define SEXT64 MSSEXT64
589 #define SEXT8 LSSEXT8
590 #define SEXT16 LSSEXT16
591 #define SEXT32 LSSEXT32
592 #define SEXT64 LSSEXT64
598 #if H_REVEALS_MODULE_P (SIM_BITS_INLINE)
599 #include "sim-bits.c"
602 #endif /* SIM_BITS_H */
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