| 1 | /* This file is part of the program psim. |
| 2 | |
| 3 | Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au> |
| 4 | Copyright (C) 1997, Free Software Foundation, Inc. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 | |
| 20 | */ |
| 21 | |
| 22 | |
| 23 | #ifndef _SIM_BITS_H_ |
| 24 | #define _SIM_BITS_H_ |
| 25 | |
| 26 | |
| 27 | /* bit manipulation routines: |
| 28 | |
| 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. |
| 33 | |
| 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 |
| 40 | significant. |
| 41 | |
| 42 | NB: Use EXTRACTED, MSEXTRACTED and LSEXTRACTED as a guideline for |
| 43 | naming. LSMASK and LSMASKED are wrong. |
| 44 | |
| 45 | BIT*(POS): Constant with just 1 bit set. |
| 46 | |
| 47 | LSBIT*(OFFSET): Constant with just 1 bit set - LS bit is zero. |
| 48 | |
| 49 | MSBIT*(OFFSET): Constant with just 1 bit set - MS bit is zero. |
| 50 | |
| 51 | MASK*(FIRST, LAST): Constant with bits [FIRST .. LAST] set. The |
| 52 | <MACRO> (no size) version permits FIRST >= LAST and generates a |
| 53 | wrapped bit mask vis ([0..LAST] | [FIRST..LSB]). |
| 54 | |
| 55 | LSMASK*(FIRST, LAST): Like MASK - LS bit is zero. |
| 56 | |
| 57 | MSMASK*(FIRST, LAST): Like MASK - LS bit is zero. |
| 58 | |
| 59 | MASKED*(VALUE, FIRST, LAST): Masks out all but bits [FIRST |
| 60 | .. LAST]. |
| 61 | |
| 62 | LSMASKED*(VALUE, FIRST, LAST): Like MASKED - LS bit is zero. |
| 63 | |
| 64 | MSMASKED*(VALUE, FIRST, LAST): Like MASKED - MS bit is zero. |
| 65 | |
| 66 | EXTRACTED*(VALUE, FIRST, LAST): Masks out bits [FIRST .. LAST] but |
| 67 | also right shifts the masked value so that bit LAST becomes the |
| 68 | least significant (right most). |
| 69 | |
| 70 | LSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - LS bit is |
| 71 | zero. |
| 72 | |
| 73 | MSEXTRACTED*(VALUE, FIRST, LAST): Same as extracted - MS bit is |
| 74 | zero. |
| 75 | |
| 76 | SHUFFLED**(VALUE, OLD, NEW): Mask then move a single bit from OLD |
| 77 | new NEW. |
| 78 | |
| 79 | MOVED**(VALUE, OLD_FIRST, OLD_LAST, NEW_FIRST, NEW_LAST): Moves |
| 80 | things around so that bits OLD_FIRST..OLD_LAST are masked then |
| 81 | moved to NEW_FIRST..NEW_LAST. |
| 82 | |
| 83 | INSERTED*(VALUE, FIRST, LAST): Takes VALUE and `inserts' the (LAST |
| 84 | - FIRST + 1) least significant bits into bit positions [ FIRST |
| 85 | .. LAST ]. This is almost the complement to EXTRACTED. |
| 86 | |
| 87 | IEA_MASKED(SHOULD_MASK, ADDR): Convert the address to the targets |
| 88 | natural size. If in 32bit mode, discard the high 32bits. |
| 89 | |
| 90 | EXTENDED*(VALUE): Convert the `*' bit value to the targets natural |
| 91 | word size. Sign extned the value if needed. |
| 92 | |
| 93 | ALIGN_*(VALUE): Round upwards the value so that it is aligned. |
| 94 | |
| 95 | FLOOR_*(VALUE): Truncate the value so that it is aligned. |
| 96 | |
| 97 | ROTL*(VALUE, NR_BITS): Return the value rotated by NR_BITS left. |
| 98 | |
| 99 | ROTR*(VALUE, NR_BITS): Return the value rotated by NR_BITS right. |
| 100 | |
| 101 | SEXT*(VAL, SIGN_BIT): Treat SIGN_BIT as the sign, extend it. |
| 102 | |
| 103 | Note: Only the BIT* and MASK* macros return a constant that can be |
| 104 | used in variable declarations. |
| 105 | |
| 106 | */ |
| 107 | |
| 108 | |
| 109 | /* compute the number of bits between START and STOP */ |
| 110 | |
| 111 | #if (WITH_TARGET_WORD_MSB == 0) |
| 112 | #define _MAKE_WIDTH(START, STOP) (STOP - START + 1) |
| 113 | #else |
| 114 | #define _MAKE_WIDTH(START, STOP) (START - STOP + 1) |
| 115 | #endif |
| 116 | |
| 117 | |
| 118 | |
| 119 | /* compute the number shifts required to move a bit between LSB (MSB) |
| 120 | and POS */ |
| 121 | |
| 122 | #if (WITH_TARGET_WORD_MSB == 0) |
| 123 | #define _LSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS) |
| 124 | #else |
| 125 | #define _LSB_SHIFT(WIDTH, POS) (POS) |
| 126 | #endif |
| 127 | |
| 128 | #if (WITH_TARGET_WORD_MSB == 0) |
| 129 | #define _MSB_SHIFT(WIDTH, POS) (POS) |
| 130 | #else |
| 131 | #define _MSB_SHIFT(WIDTH, POS) (WIDTH - 1 - POS) |
| 132 | #endif |
| 133 | |
| 134 | |
| 135 | /* compute the absolute bit position given the OFFSET from the MSB(LSB) |
| 136 | NB: _MAKE_xxx_POS (WIDTH, _MAKE_xxx_SHIFT (WIDTH, POS)) == POS */ |
| 137 | |
| 138 | #if (WITH_TARGET_WORD_MSB == 0) |
| 139 | #define _MSB_POS(WIDTH, SHIFT) (SHIFT) |
| 140 | #else |
| 141 | #define _MSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT) |
| 142 | #endif |
| 143 | |
| 144 | #if (WITH_TARGET_WORD_MSB == 0) |
| 145 | #define _LSB_POS(WIDTH, SHIFT) (WIDTH - 1 - SHIFT) |
| 146 | #else |
| 147 | #define _LSB_POS(WIDTH, SHIFT) (SHIFT) |
| 148 | #endif |
| 149 | |
| 150 | |
| 151 | /* convert a 64 bit position into a corresponding 32bit position. MSB |
| 152 | pos handles the posibility that the bit lies beyond the 32bit |
| 153 | boundary */ |
| 154 | |
| 155 | #if (WITH_TARGET_WORD_MSB == 0) |
| 156 | #define _MSB_32(START, STOP) (START <= STOP \ |
| 157 | ? (START < 32 ? 0 : START - 32) \ |
| 158 | : (STOP < 32 ? 0 : STOP - 32)) |
| 159 | #else |
| 160 | #define _MSB_32(START, STOP) (START >= STOP \ |
| 161 | ? (START >= 32 ? 31 : START) \ |
| 162 | : (STOP >= 32 ? 31 : STOP)) |
| 163 | #endif |
| 164 | |
| 165 | #if (WITH_TARGET_WORD_MSB == 0) |
| 166 | #define _LSB_32(START, STOP) (START <= STOP \ |
| 167 | ? (STOP < 32 ? 0 : STOP - 32) \ |
| 168 | : (START < 32 ? 0 : START - 32)) |
| 169 | #else |
| 170 | #define _LSB_32(START, STOP) (START >= STOP \ |
| 171 | ? (STOP >= 32 ? 31 : STOP) \ |
| 172 | : (START >= 32 ? 31 : START)) |
| 173 | #endif |
| 174 | |
| 175 | #if (WITH_TARGET_WORD_MSB == 0) |
| 176 | #define _MSB(START, STOP) (START <= STOP ? START : STOP) |
| 177 | #else |
| 178 | #define _MSB(START, STOP) (START >= STOP ? START : STOP) |
| 179 | #endif |
| 180 | |
| 181 | #if (WITH_TARGET_WORD_MSB == 0) |
| 182 | #define _LSB(START, STOP) (START <= STOP ? STOP : START) |
| 183 | #else |
| 184 | #define _LSB(START, STOP) (START >= STOP ? STOP : START) |
| 185 | #endif |
| 186 | |
| 187 | |
| 188 | /* LS/MS Bit operations */ |
| 189 | |
| 190 | #define LSBIT8(POS) ((unsigned8)1 << (POS)) |
| 191 | #define LSBIT16(POS) ((unsigned16)1 << (POS)) |
| 192 | #define LSBIT32(POS) ((unsigned32)1 << (POS)) |
| 193 | #define LSBIT64(POS) ((unsigned64)1 << (POS)) |
| 194 | #define LSBIT(POS) ((unsigned_word)1 << (POS)) |
| 195 | |
| 196 | #define MSBIT8(POS) ((unsigned8)1 << (8 - 1 - (POS))) |
| 197 | #define MSBIT16(POS) ((unsigned16)1 << (16 - 1 - (POS))) |
| 198 | #define MSBIT32(POS) ((unsigned32)1 << (32 - 1 - (POS))) |
| 199 | #define MSBIT64(POS) ((unsigned64)1 << (64 - 1 - (POS))) |
| 200 | #define MSBIT(POS) ((unsigned_word)1 << (WITH_TARGET_WORD_BITSIZE - 1 - (POS))) |
| 201 | |
| 202 | |
| 203 | /* Bit operations */ |
| 204 | |
| 205 | #define _BITn(WIDTH, POS) ((natural##WIDTH)1 \ |
| 206 | << _LSB_SHIFT (WIDTH, POS)) |
| 207 | |
| 208 | #define BIT4(POS) (1 << _LSB_SHIFT (4, (POS))) |
| 209 | #define BIT5(POS) (1 << _LSB_SHIFT (5, (POS))) |
| 210 | #define BIT8(POS) (1 << _LSB_SHIFT (8, (POS))) |
| 211 | #define BIT10(POS) (1 << _LSB_SHIFT (10, (POS))) |
| 212 | #define BIT16(POS) _BITn (16, (POS)) |
| 213 | #define BIT32(POS) _BITn (32, (POS)) |
| 214 | #define BIT64(POS) _BITn (64, (POS)) |
| 215 | |
| 216 | #if (WITH_TARGET_WORD_BITSIZE == 64) |
| 217 | #define BIT(POS) BIT64(POS) |
| 218 | #endif |
| 219 | #if (WITH_TARGET_WORD_BITSIZE == 32) |
| 220 | #if (WITH_TARGET_WORD_MSB == 0) |
| 221 | #define BIT(POS) ((POS) < 32 \ |
| 222 | ? 0 \ |
| 223 | : (1 << ((POS) < 32 ? 0 : _LSB_SHIFT(64, (POS))))) |
| 224 | #else |
| 225 | #define BIT(POS) ((POS) >= 32 \ |
| 226 | ? 0 \ |
| 227 | : (1 << ((POS) >= 32 ? 0 : (POS)))) |
| 228 | #endif |
| 229 | #endif |
| 230 | #if !defined (BIT) |
| 231 | #error "BIT never defined" |
| 232 | #endif |
| 233 | |
| 234 | |
| 235 | /* multi bit mask */ |
| 236 | |
| 237 | /* 111111 -> mmll11 -> mm11ll */ |
| 238 | #define _MASKn(WIDTH, START, STOP) (((unsigned##WIDTH)(-1) \ |
| 239 | >> (_MSB_SHIFT (WIDTH, START) \ |
| 240 | + _LSB_SHIFT (WIDTH, STOP))) \ |
| 241 | << _LSB_SHIFT (WIDTH, STOP)) |
| 242 | |
| 243 | #if (WITH_TARGET_WORD_MSB == 0) |
| 244 | #define _POS_LE(START, STOP) (START <= STOP) |
| 245 | #else |
| 246 | #define _POS_LE(START, STOP) (STOP <= START) |
| 247 | #endif |
| 248 | |
| 249 | #if (WITH_TARGET_WORD_BITSIZE == 64) |
| 250 | #define MASK(START, STOP) \ |
| 251 | (_POS_LE ((START), (STOP)) \ |
| 252 | ? _MASKn(64, \ |
| 253 | _MSB ((START), (STOP)), \ |
| 254 | _LSB ((START), (STOP)) ) \ |
| 255 | : (_MASKn(64, _MSB_POS (64, 0), (STOP)) \ |
| 256 | | _MASKn(64, (START), _LSB_POS (64, 0)))) |
| 257 | #endif |
| 258 | #if (WITH_TARGET_WORD_BITSIZE == 32) |
| 259 | #define MASK(START, STOP) \ |
| 260 | (_POS_LE ((START), (STOP)) \ |
| 261 | ? (_POS_LE ((STOP), _MSB_POS (64, 31)) \ |
| 262 | ? 0 \ |
| 263 | : _MASKn (32, \ |
| 264 | _MSB_32 ((START), (STOP)), \ |
| 265 | _LSB_32 ((START), (STOP)))) \ |
| 266 | : (_MASKn (32, \ |
| 267 | _LSB_32 ((START), (STOP)), \ |
| 268 | _LSB_POS (32, 0)) \ |
| 269 | | (_POS_LE ((STOP), _MSB_POS (64, 31)) \ |
| 270 | ? 0 \ |
| 271 | : _MASKn (32, \ |
| 272 | _MSB_POS (32, 0), \ |
| 273 | _MSB_32 ((START), (STOP)))))) |
| 274 | #endif |
| 275 | #if !defined (MASK) |
| 276 | #error "MASK never undefined" |
| 277 | #endif |
| 278 | |
| 279 | |
| 280 | /* Multi-bit mask on least significant bits */ |
| 281 | |
| 282 | #define _LSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \ |
| 283 | _LSB_POS (WIDTH, FIRST), \ |
| 284 | _LSB_POS (WIDTH, LAST)) |
| 285 | |
| 286 | #define LSMASK16(FIRST, LAST) _LSMASKn (16, (FIRST), (LAST)) |
| 287 | #define LSMASK32(FIRST, LAST) _LSMASKn (32, (FIRST), (LAST)) |
| 288 | #define LSMASK64(FIRST, LAST) _LSMASKn (64, (FIRST), (LAST)) |
| 289 | |
| 290 | #define LSMASK(FIRST, LAST) (MASK (_LSB_POS (64, FIRST), _LSB_POS (64, LAST))) |
| 291 | |
| 292 | |
| 293 | /* Multi-bit mask on most significant bits */ |
| 294 | |
| 295 | #define _MSMASKn(WIDTH, FIRST, LAST) _MASKn (WIDTH, \ |
| 296 | _MSB_POS (WIDTH, FIRST), \ |
| 297 | _MSB_POS (WIDTH, LAST)) |
| 298 | |
| 299 | #define MSMASK16(FIRST, LAST) _MSMASKn (16, (FIRST), (LAST)) |
| 300 | #define MSMASK32(FIRST, LAST) _MSMASKn (32, (FIRST), (LAST)) |
| 301 | #define MSMASK64(FIRST, LAST) _MSMASKn (64, (FIRST), (LAST)) |
| 302 | |
| 303 | #define MSMASK(FIRST, LAST) (MASK (_MSB_POS (64, FIRST), _MSB_POS (64, LAST))) |
| 304 | |
| 305 | |
| 306 | |
| 307 | #if (WITH_TARGET_WORD_MSB == 0) |
| 308 | #define MASK16 MSMASK16 |
| 309 | #define MASK32 MSMASK32 |
| 310 | #define MASK64 MSMASK64 |
| 311 | #else |
| 312 | #define MASK16 LSMASK16 |
| 313 | #define MASK32 LSMASK32 |
| 314 | #define MASK64 LSMASK64 |
| 315 | #endif |
| 316 | |
| 317 | |
| 318 | |
| 319 | /* mask the required bits, leaving them in place */ |
| 320 | |
| 321 | INLINE_SIM_BITS(unsigned16) LSMASKED16 (unsigned16 word, int first, int last); |
| 322 | INLINE_SIM_BITS(unsigned32) LSMASKED32 (unsigned32 word, int first, int last); |
| 323 | INLINE_SIM_BITS(unsigned64) LSMASKED64 (unsigned64 word, int first, int last); |
| 324 | |
| 325 | INLINE_SIM_BITS(unsigned_word) LSMASKED (unsigned_word word, int first, int last); |
| 326 | |
| 327 | INLINE_SIM_BITS(unsigned16) MSMASKED16 (unsigned16 word, int first, int last); |
| 328 | INLINE_SIM_BITS(unsigned32) MSMASKED32 (unsigned32 word, int first, int last); |
| 329 | INLINE_SIM_BITS(unsigned64) MSMASKED64 (unsigned64 word, int first, int last); |
| 330 | |
| 331 | INLINE_SIM_BITS(unsigned_word) MSMASKED (unsigned_word word, int first, int last); |
| 332 | |
| 333 | #if (WITH_TARGET_WORD_MSB == 0) |
| 334 | #define MASKED16 MSMASKED16 |
| 335 | #define MASKED32 MSMASKED32 |
| 336 | #define MASKED64 MSMASKED64 |
| 337 | #define MASKED MSMASKED |
| 338 | #else |
| 339 | #define MASKED16 LSMASKED16 |
| 340 | #define MASKED32 LSMASKED32 |
| 341 | #define MASKED64 LSMASKED64 |
| 342 | #define MASKED LSMASKED |
| 343 | #endif |
| 344 | |
| 345 | |
| 346 | |
| 347 | /* extract the required bits aligning them with the lsb */ |
| 348 | |
| 349 | INLINE_SIM_BITS(unsigned16) LSEXTRACTED16 (unsigned16 val, int start, int stop); |
| 350 | INLINE_SIM_BITS(unsigned32) LSEXTRACTED32 (unsigned32 val, int start, int stop); |
| 351 | INLINE_SIM_BITS(unsigned64) LSEXTRACTED64 (unsigned64 val, int start, int stop); |
| 352 | |
| 353 | INLINE_SIM_BITS(unsigned_word) LSEXTRACTED (unsigned_word val, int start, int stop); |
| 354 | |
| 355 | INLINE_SIM_BITS(unsigned16) MSEXTRACTED16 (unsigned16 val, int start, int stop); |
| 356 | INLINE_SIM_BITS(unsigned32) MSEXTRACTED32 (unsigned32 val, int start, int stop); |
| 357 | INLINE_SIM_BITS(unsigned64) MSEXTRACTED64 (unsigned64 val, int start, int stop); |
| 358 | |
| 359 | INLINE_SIM_BITS(unsigned_word) MSEXTRACTED (unsigned_word val, int start, int stop); |
| 360 | |
| 361 | #if (WITH_TARGET_WORD_MSB == 0) |
| 362 | #define EXTRACTED16 MSEXTRACTED16 |
| 363 | #define EXTRACTED32 MSEXTRACTED32 |
| 364 | #define EXTRACTED64 MSEXTRACTED64 |
| 365 | #define EXTRACTED MSEXTRACTED |
| 366 | #else |
| 367 | #define EXTRACTED16 LSEXTRACTED16 |
| 368 | #define EXTRACTED32 LSEXTRACTED32 |
| 369 | #define EXTRACTED64 LSEXTRACTED64 |
| 370 | #define EXTRACTED LSEXTRACTED |
| 371 | #endif |
| 372 | |
| 373 | |
| 374 | |
| 375 | /* move a single bit around */ |
| 376 | /* NB: the wierdness (N>O?N-O:0) is to stop a warning from GCC */ |
| 377 | #define _SHUFFLEDn(N, WORD, OLD, NEW) \ |
| 378 | ((OLD) < (NEW) \ |
| 379 | ? (((unsigned##N)(WORD) \ |
| 380 | >> (((NEW) > (OLD)) ? ((NEW) - (OLD)) : 0)) \ |
| 381 | & MASK32((NEW), (NEW))) \ |
| 382 | : (((unsigned##N)(WORD) \ |
| 383 | << (((OLD) > (NEW)) ? ((OLD) - (NEW)) : 0)) \ |
| 384 | & MASK32((NEW), (NEW)))) |
| 385 | |
| 386 | #define SHUFFLED32(WORD, OLD, NEW) _SHUFFLEDn (32, WORD, OLD, NEW) |
| 387 | #define SHUFFLED64(WORD, OLD, NEW) _SHUFFLEDn (64, WORD, OLD, NEW) |
| 388 | |
| 389 | #define SHUFFLED(WORD, OLD, NEW) _SHUFFLEDn (_word, WORD, OLD, NEW) |
| 390 | |
| 391 | |
| 392 | /* move a group of bits around */ |
| 393 | |
| 394 | INLINE_SIM_BITS(unsigned16) INSERTED16 (unsigned16 val, int start, int stop); |
| 395 | INLINE_SIM_BITS(unsigned32) INSERTED32 (unsigned32 val, int start, int stop); |
| 396 | INLINE_SIM_BITS(unsigned64) INSERTED64 (unsigned64 val, int start, int stop); |
| 397 | |
| 398 | INLINE_SIM_BITS(unsigned_word) INSERTED (unsigned_word val, int start, int stop); |
| 399 | |
| 400 | |
| 401 | |
| 402 | /* Sign extend the quantity to the targets natural word size */ |
| 403 | |
| 404 | #define EXTEND8(X) ((signed_word)(signed8)(X)) |
| 405 | #define EXTEND16(X) ((signed_word)(signed16)(X)) |
| 406 | #define EXTEND32(X) ((signed_word)(signed32)(X)) |
| 407 | #define EXTEND64(X) ((signed_word)(signed64)(X)) |
| 408 | |
| 409 | /* depending on MODE return a 64bit or 32bit (sign extended) value */ |
| 410 | #if (WITH_TARGET_WORD_BITSIZE == 64) |
| 411 | #define EXTENDED(X) ((signed64)(signed32)(X)) |
| 412 | #endif |
| 413 | #if (WITH_TARGET_WORD_BITSIZE == 32) |
| 414 | #define EXTENDED(X) (X) |
| 415 | #endif |
| 416 | |
| 417 | |
| 418 | /* memory alignment macro's */ |
| 419 | #define _ALIGNa(A,X) (((X) + ((A) - 1)) & ~((A) - 1)) |
| 420 | #define _FLOORa(A,X) ((X) & ~((A) - 1)) |
| 421 | |
| 422 | #define ALIGN_8(X) _ALIGNa (8, X) |
| 423 | #define ALIGN_16(X) _ALIGNa (16, X) |
| 424 | |
| 425 | #define ALIGN_PAGE(X) _ALIGNa (0x1000, X) |
| 426 | #define FLOOR_PAGE(X) ((X) & ~(0x1000 - 1)) |
| 427 | |
| 428 | |
| 429 | /* bit bliting macro's */ |
| 430 | #define BLIT32(V, POS, BIT) \ |
| 431 | do { \ |
| 432 | if (BIT) \ |
| 433 | V |= BIT32 (POS); \ |
| 434 | else \ |
| 435 | V &= ~BIT32 (POS); \ |
| 436 | } while (0) |
| 437 | #define MBLIT32(V, LO, HI, VAL) \ |
| 438 | do { \ |
| 439 | (V) = (((V) & ~MASK32 ((LO), (HI))) \ |
| 440 | | INSERTED32 (VAL, LO, HI)); \ |
| 441 | } while (0) |
| 442 | |
| 443 | |
| 444 | |
| 445 | /* some rotate functions. The generic macro's ROT, ROTL, ROTR are |
| 446 | intentionally omited. */ |
| 447 | |
| 448 | |
| 449 | INLINE_SIM_BITS(unsigned16) ROT16 (unsigned16 val, int shift); |
| 450 | INLINE_SIM_BITS(unsigned32) ROT32 (unsigned32 val, int shift); |
| 451 | INLINE_SIM_BITS(unsigned64) ROT64 (unsigned64 val, int shift); |
| 452 | |
| 453 | |
| 454 | INLINE_SIM_BITS(unsigned16) ROTL16 (unsigned16 val, int shift); |
| 455 | INLINE_SIM_BITS(unsigned32) ROTL32 (unsigned32 val, int shift); |
| 456 | INLINE_SIM_BITS(unsigned64) ROTL64 (unsigned64 val, int shift); |
| 457 | |
| 458 | |
| 459 | INLINE_SIM_BITS(unsigned16) ROTR16 (unsigned16 val, int shift); |
| 460 | INLINE_SIM_BITS(unsigned32) ROTR32 (unsigned32 val, int shift); |
| 461 | INLINE_SIM_BITS(unsigned64) ROTR64 (unsigned64 val, int shift); |
| 462 | |
| 463 | |
| 464 | |
| 465 | /* Sign extension operations */ |
| 466 | |
| 467 | INLINE_SIM_BITS(unsigned16) SEXT16 (signed16 val, int sign_bit); |
| 468 | INLINE_SIM_BITS(unsigned32) SEXT32 (signed32 val, int sign_bit); |
| 469 | INLINE_SIM_BITS(unsigned64) SEXT64 (signed64 val, int sign_bit); |
| 470 | |
| 471 | INLINE_SIM_BITS(unsigned_word) SEXT (signed_word val, int sign_bit); |
| 472 | |
| 473 | |
| 474 | |
| 475 | #if ((SIM_BITS_INLINE & INCLUDE_MODULE) && (SIM_BITS_INLINE & INCLUDED_BY_MODULE)) |
| 476 | #include "sim-bits.c" |
| 477 | #endif |
| 478 | |
| 479 | #endif /* _SIM_BITS_H_ */ |