gnu/dist/gdb6/opcodes/cgen-ops.h

   1 /* Semantics ops support for CGEN-based opcode libraries.
   2    Copyright (C) 2005 Free Software Foundation, Inc.
   3    Contributed by Red Hat.
   4
   5 This file is part of the GNU opcodes library.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with this program; if not, write to the Free Software Foundation, Inc.,
  19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20
  21 */
  22
  23 #ifndef CGEN_SEM_OPS_H
  24 #define CGEN_SEM_OPS_H
  25
  26 #include <assert.h>
  27
  28 #if defined (__GNUC__) && ! defined (SEMOPS_DEFINE_INLINE)
  29 #define SEMOPS_DEFINE_INLINE
  30 #define SEMOPS_INLINE extern inline
  31 #else
  32 #define SEMOPS_INLINE
  33 #endif
  34
  35 /* TODO: Lazy encoding/decoding of fp values.  */
  36
  37 /* These don't really have a mode.  */
  38 #define ANDIF(x, y) ((x) && (y))
  39 #define ORIF(x, y) ((x) || (y))
  40
  41 #define SUBBI(x, y) ((x) - (y))
  42 #define ANDBI(x, y) ((x) & (y))
  43 #define ORBI(x, y) ((x) | (y))
  44 #define XORBI(x, y) ((x) ^ (y))
  45 #define NEGBI(x) (- (x))
  46 #define NOTBI(x) (! (BI) (x))
  47 #define INVBI(x) (~ (x))
  48 #define EQBI(x, y) ((BI) (x) == (BI) (y))
  49 #define NEBI(x, y) ((BI) (x) != (BI) (y))
  50 #define LTBI(x, y) ((BI) (x) < (BI) (y))
  51 #define LEBI(x, y) ((BI) (x) <= (BI) (y))
  52 #define GTBI(x, y) ((BI) (x) > (BI) (y))
  53 #define GEBI(x, y) ((BI) (x) >= (BI) (y))
  54 #define LTUBI(x, y) ((BI) (x) < (BI) (y))
  55 #define LEUBI(x, y) ((BI) (x) <= (BI) (y))
  56 #define GTUBI(x, y) ((BI) (x) > (BI) (y))
  57 #define GEUBI(x, y) ((BI) (x) >= (BI) (y))
  58 \f
  59 #define ADDQI(x, y) ((x) + (y))
  60 #define SUBQI(x, y) ((x) - (y))
  61 #define MULQI(x, y) ((x) * (y))
  62 #define DIVQI(x, y) ((QI) (x) / (QI) (y))
  63 #define UDIVQI(x, y) ((UQI) (x) / (UQI) (y))
  64 #define MODQI(x, y) ((QI) (x) % (QI) (y))
  65 #define UMODQI(x, y) ((UQI) (x) % (UQI) (y))
  66 #define SRAQI(x, y) ((QI) (x) >> (y))
  67 #define SRLQI(x, y) ((UQI) (x) >> (y))
  68 #define SLLQI(x, y) ((UQI) (x) << (y))
  69 extern QI RORQI (QI, int);
  70 extern QI ROLQI (QI, int);
  71 #define ANDQI(x, y) ((x) & (y))
  72 #define ORQI(x, y) ((x) | (y))
  73 #define XORQI(x, y) ((x) ^ (y))
  74 #define NEGQI(x) (- (x))
  75 #define NOTQI(x) (! (QI) (x))
  76 #define INVQI(x) (~ (x))
  77 #define ABSQI(x) ((x) < 0 ? -(x) : (x))
  78 #define EQQI(x, y) ((QI) (x) == (QI) (y))
  79 #define NEQI(x, y) ((QI) (x) != (QI) (y))
  80 #define LTQI(x, y) ((QI) (x) < (QI) (y))
  81 #define LEQI(x, y) ((QI) (x) <= (QI) (y))
  82 #define GTQI(x, y) ((QI) (x) > (QI) (y))
  83 #define GEQI(x, y) ((QI) (x) >= (QI) (y))
  84 #define LTUQI(x, y) ((UQI) (x) < (UQI) (y))
  85 #define LEUQI(x, y) ((UQI) (x) <= (UQI) (y))
  86 #define GTUQI(x, y) ((UQI) (x) > (UQI) (y))
  87 #define GEUQI(x, y) ((UQI) (x) >= (UQI) (y))
  88 \f
  89 #define ADDHI(x, y) ((x) + (y))
  90 #define SUBHI(x, y) ((x) - (y))
  91 #define MULHI(x, y) ((x) * (y))
  92 #define DIVHI(x, y) ((HI) (x) / (HI) (y))
  93 #define UDIVHI(x, y) ((UHI) (x) / (UHI) (y))
  94 #define MODHI(x, y) ((HI) (x) % (HI) (y))
  95 #define UMODHI(x, y) ((UHI) (x) % (UHI) (y))
  96 #define SRAHI(x, y) ((HI) (x) >> (y))
  97 #define SRLHI(x, y) ((UHI) (x) >> (y))
  98 #define SLLHI(x, y) ((UHI) (x) << (y))
  99 extern HI RORHI (HI, int);
 100 extern HI ROLHI (HI, int);
 101 #define ANDHI(x, y) ((x) & (y))
 102 #define ORHI(x, y) ((x) | (y))
 103 #define XORHI(x, y) ((x) ^ (y))
 104 #define NEGHI(x) (- (x))
 105 #define NOTHI(x) (! (HI) (x))
 106 #define INVHI(x) (~ (x))
 107 #define ABSHI(x) ((x) < 0 ? -(x) : (x))
 108 #define EQHI(x, y) ((HI) (x) == (HI) (y))
 109 #define NEHI(x, y) ((HI) (x) != (HI) (y))
 110 #define LTHI(x, y) ((HI) (x) < (HI) (y))
 111 #define LEHI(x, y) ((HI) (x) <= (HI) (y))
 112 #define GTHI(x, y) ((HI) (x) > (HI) (y))
 113 #define GEHI(x, y) ((HI) (x) >= (HI) (y))
 114 #define LTUHI(x, y) ((UHI) (x) < (UHI) (y))
 115 #define LEUHI(x, y) ((UHI) (x) <= (UHI) (y))
 116 #define GTUHI(x, y) ((UHI) (x) > (UHI) (y))
 117 #define GEUHI(x, y) ((UHI) (x) >= (UHI) (y))
 118 \f
 119 #define ADDSI(x, y) ((x) + (y))
 120 #define SUBSI(x, y) ((x) - (y))
 121 #define MULSI(x, y) ((x) * (y))
 122 #define DIVSI(x, y) ((SI) (x) / (SI) (y))
 123 #define UDIVSI(x, y) ((USI) (x) / (USI) (y))
 124 #define MODSI(x, y) ((SI) (x) % (SI) (y))
 125 #define UMODSI(x, y) ((USI) (x) % (USI) (y))
 126 #define SRASI(x, y) ((SI) (x) >> (y))
 127 #define SRLSI(x, y) ((USI) (x) >> (y))
 128 #define SLLSI(x, y) ((USI) (x) << (y))
 129 extern SI RORSI (SI, int);
 130 extern SI ROLSI (SI, int);
 131 #define ANDSI(x, y) ((x) & (y))
 132 #define ORSI(x, y) ((x) | (y))
 133 #define XORSI(x, y) ((x) ^ (y))
 134 #define NEGSI(x) (- (x))
 135 #define NOTSI(x) (! (SI) (x))
 136 #define INVSI(x) (~ (x))
 137 #define ABSSI(x) ((x) < 0 ? -(x) : (x))
 138 #define EQSI(x, y) ((SI) (x) == (SI) (y))
 139 #define NESI(x, y) ((SI) (x) != (SI) (y))
 140 #define LTSI(x, y) ((SI) (x) < (SI) (y))
 141 #define LESI(x, y) ((SI) (x) <= (SI) (y))
 142 #define GTSI(x, y) ((SI) (x) > (SI) (y))
 143 #define GESI(x, y) ((SI) (x) >= (SI) (y))
 144 #define LTUSI(x, y) ((USI) (x) < (USI) (y))
 145 #define LEUSI(x, y) ((USI) (x) <= (USI) (y))
 146 #define GTUSI(x, y) ((USI) (x) > (USI) (y))
 147 #define GEUSI(x, y) ((USI) (x) >= (USI) (y))
 148 \f
 149 #ifdef DI_FN_SUPPORT
 150 extern DI ADDDI (DI, DI);
 151 extern DI SUBDI (DI, DI);
 152 extern DI MULDI (DI, DI);
 153 extern DI DIVDI (DI, DI);
 154 extern DI UDIVDI (DI, DI);
 155 extern DI MODDI (DI, DI);
 156 extern DI UMODDI (DI, DI);
 157 extern DI SRADI (DI, int);
 158 extern UDI SRLDI (UDI, int);
 159 extern UDI SLLDI (UDI, int);
 160 extern DI RORDI (DI, int);
 161 extern DI ROLDI (DI, int);
 162 extern DI ANDDI (DI, DI);
 163 extern DI ORDI (DI, DI);
 164 extern DI XORDI (DI, DI);
 165 extern DI NEGDI (DI);
 166 extern int NOTDI (DI);
 167 extern DI INVDI (DI);
 168 extern int EQDI (DI, DI);
 169 extern int NEDI (DI, DI);
 170 extern int LTDI (DI, DI);
 171 extern int LEDI (DI, DI);
 172 extern int GTDI (DI, DI);
 173 extern int GEDI (DI, DI);
 174 extern int LTUDI (UDI, UDI);
 175 extern int LEUDI (UDI, UDI);
 176 extern int GTUDI (UDI, UDI);
 177 extern int GEUDI (UDI, UDI);
 178 #else /* ! DI_FN_SUPPORT */
 179 #define ADDDI(x, y) ((x) + (y))
 180 #define SUBDI(x, y) ((x) - (y))
 181 #define MULDI(x, y) ((x) * (y))
 182 #define DIVDI(x, y) ((DI) (x) / (DI) (y))
 183 #define UDIVDI(x, y) ((UDI) (x) / (UDI) (y))
 184 #define MODDI(x, y) ((DI) (x) % (DI) (y))
 185 #define UMODDI(x, y) ((UDI) (x) % (UDI) (y))
 186 #define SRADI(x, y) ((DI) (x) >> (y))
 187 #define SRLDI(x, y) ((UDI) (x) >> (y))
 188 #define SLLDI(x, y) ((UDI) (x) << (y))
 189 extern DI RORDI (DI, int);
 190 extern DI ROLDI (DI, int);
 191 #define ANDDI(x, y) ((x) & (y))
 192 #define ORDI(x, y) ((x) | (y))
 193 #define XORDI(x, y) ((x) ^ (y))
 194 #define NEGDI(x) (- (x))
 195 #define NOTDI(x) (! (DI) (x))
 196 #define INVDI(x) (~ (x))
 197 #define ABSDI(x) ((x) < 0 ? -(x) : (x))
 198 #define EQDI(x, y) ((DI) (x) == (DI) (y))
 199 #define NEDI(x, y) ((DI) (x) != (DI) (y))
 200 #define LTDI(x, y) ((DI) (x) < (DI) (y))
 201 #define LEDI(x, y) ((DI) (x) <= (DI) (y))
 202 #define GTDI(x, y) ((DI) (x) > (DI) (y))
 203 #define GEDI(x, y) ((DI) (x) >= (DI) (y))
 204 #define LTUDI(x, y) ((UDI) (x) < (UDI) (y))
 205 #define LEUDI(x, y) ((UDI) (x) <= (UDI) (y))
 206 #define GTUDI(x, y) ((UDI) (x) > (UDI) (y))
 207 #define GEUDI(x, y) ((UDI) (x) >= (UDI) (y))
 208 #endif /* DI_FN_SUPPORT */
 209 \f
 210 #define EXTBIQI(x) ((QI) (BI) (x))
 211 #define EXTBIHI(x) ((HI) (BI) (x))
 212 #define EXTBISI(x) ((SI) (BI) (x))
 213 #if defined (DI_FN_SUPPORT)
 214 extern DI EXTBIDI (BI);
 215 #else
 216 #define EXTBIDI(x) ((DI) (BI) (x))
 217 #endif
 218 #define EXTQIHI(x) ((HI) (QI) (x))
 219 #define EXTQISI(x) ((SI) (QI) (x))
 220 #if defined (DI_FN_SUPPORT)
 221 extern DI EXTQIDI (QI);
 222 #else
 223 #define EXTQIDI(x) ((DI) (QI) (x))
 224 #endif
 225 #define EXTHIHI(x) ((HI) (HI) (x))
 226 #define EXTHISI(x) ((SI) (HI) (x))
 227 #define EXTSISI(x) ((SI) (SI) (x))
 228 #if defined (DI_FN_SUPPORT)
 229 extern DI EXTHIDI (HI);
 230 #else
 231 #define EXTHIDI(x) ((DI) (HI) (x))
 232 #endif
 233 #if defined (DI_FN_SUPPORT)
 234 extern DI EXTSIDI (SI);
 235 #else
 236 #define EXTSIDI(x) ((DI) (SI) (x))
 237 #endif
 238 \f
 239 #define ZEXTBIQI(x) ((QI) (BI) (x))
 240 #define ZEXTBIHI(x) ((HI) (BI) (x))
 241 #define ZEXTBISI(x) ((SI) (BI) (x))
 242 #if defined (DI_FN_SUPPORT)
 243 extern DI ZEXTBIDI (BI);
 244 #else
 245 #define ZEXTBIDI(x) ((DI) (BI) (x))
 246 #endif
 247 #define ZEXTQIHI(x) ((HI) (UQI) (x))
 248 #define ZEXTQISI(x) ((SI) (UQI) (x))
 249 #if defined (DI_FN_SUPPORT)
 250 extern DI ZEXTQIDI (QI);
 251 #else
 252 #define ZEXTQIDI(x) ((DI) (UQI) (x))
 253 #endif
 254 #define ZEXTHISI(x) ((SI) (UHI) (x))
 255 #define ZEXTHIHI(x) ((HI) (UHI) (x))
 256 #define ZEXTSISI(x) ((SI) (USI) (x))
 257 #if defined (DI_FN_SUPPORT)
 258 extern DI ZEXTHIDI (HI);
 259 #else
 260 #define ZEXTHIDI(x) ((DI) (UHI) (x))
 261 #endif
 262 #if defined (DI_FN_SUPPORT)
 263 extern DI ZEXTSIDI (SI);
 264 #else
 265 #define ZEXTSIDI(x) ((DI) (USI) (x))
 266 #endif
 267 \f
 268 #define TRUNCQIBI(x) ((BI) (QI) (x))
 269 #define TRUNCHIBI(x) ((BI) (HI) (x))
 270 #define TRUNCHIQI(x) ((QI) (HI) (x))
 271 #define TRUNCSIBI(x) ((BI) (SI) (x))
 272 #define TRUNCSIQI(x) ((QI) (SI) (x))
 273 #define TRUNCSIHI(x) ((HI) (SI) (x))
 274 #define TRUNCSISI(x) ((SI) (SI) (x))
 275 #if defined (DI_FN_SUPPORT)
 276 extern BI TRUNCDIBI (DI);
 277 #else
 278 #define TRUNCDIBI(x) ((BI) (DI) (x))
 279 #endif
 280 #if defined (DI_FN_SUPPORT)
 281 extern QI TRUNCDIQI (DI);
 282 #else
 283 #define TRUNCDIQI(x) ((QI) (DI) (x))
 284 #endif
 285 #if defined (DI_FN_SUPPORT)
 286 extern HI TRUNCDIHI (DI);
 287 #else
 288 #define TRUNCDIHI(x) ((HI) (DI) (x))
 289 #endif
 290 #if defined (DI_FN_SUPPORT)
 291 extern SI TRUNCDISI (DI);
 292 #else
 293 #define TRUNCDISI(x) ((SI) (DI) (x))
 294 #endif
 295 \f
 296 /* Composing/decomposing the various types.
 297    Word ordering is endian-independent.  Words are specified most to least
 298    significant and word number 0 is the most significant word.
 299    ??? May also wish an endian-dependent version.  Later.  */
 300
 301 QI SUBWORDSIQI (SI, int);
 302 HI SUBWORDSIHI (SI, int);
 303 SI SUBWORDSFSI (SF);
 304 SF SUBWORDSISF (SI);
 305 DI SUBWORDDFDI (DF);
 306 DF SUBWORDDIDF (DI);
 307 QI SUBWORDDIQI (DI, int);
 308 HI SUBWORDDIHI (DI, int);
 309 SI SUBWORDDISI (DI, int);
 310 SI SUBWORDDFSI (DF, int);
 311 SI SUBWORDXFSI (XF, int);
 312 SI SUBWORDTFSI (TF, int);
 313
 314 UQI SUBWORDSIUQI (SI, int);
 315 UQI SUBWORDDIUQI (DI, int);
 316
 317 #ifdef SEMOPS_DEFINE_INLINE
 318
 319 SEMOPS_INLINE SF
 320 SUBWORDSISF (SI in)
 321 {
 322   union { SI in; SF out; } x;
 323   x.in = in;
 324   return x.out;
 325 }
 326
 327 SEMOPS_INLINE DF
 328 SUBWORDDIDF (DI in)
 329 {
 330   union { DI in; DF out; } x;
 331   x.in = in;
 332   return x.out;
 333 }
 334
 335 SEMOPS_INLINE QI
 336 SUBWORDSIQI (SI in, int byte)
 337 {
 338   assert (byte >= 0 && byte <= 3);
 339   return (UQI) (in >> (8 * (3 - byte))) & 0xFF;
 340 }
 341
 342 SEMOPS_INLINE UQI
 343 SUBWORDSIUQI (SI in, int byte)
 344 {
 345   assert (byte >= 0 && byte <= 3);
 346   return (UQI) (in >> (8 * (3 - byte))) & 0xFF;
 347 }
 348
 349 SEMOPS_INLINE QI
 350 SUBWORDDIQI (DI in, int byte)
 351 {
 352   assert (byte >= 0 && byte <= 7);
 353   return (UQI) (in >> (8 * (7 - byte))) & 0xFF;
 354 }
 355
 356 SEMOPS_INLINE HI
 357 SUBWORDDIHI (DI in, int word)
 358 {
 359   assert (word >= 0 && word <= 3);
 360   return (UHI) (in >> (16 * (3 - word))) & 0xFFFF;
 361 }
 362
 363 SEMOPS_INLINE HI
 364 SUBWORDSIHI (SI in, int word)
 365 {
 366   if (word == 0)
 367     return (USI) in >> 16;
 368   else
 369     return in;
 370 }
 371
 372 SEMOPS_INLINE SI
 373 SUBWORDSFSI (SF in)
 374 {
 375   union { SF in; SI out; } x;
 376   x.in = in;
 377   return x.out;
 378 }
 379
 380 SEMOPS_INLINE DI
 381 SUBWORDDFDI (DF in)
 382 {
 383   union { DF in; DI out; } x;
 384   x.in = in;
 385   return x.out;
 386 }
 387
 388 SEMOPS_INLINE UQI
 389 SUBWORDDIUQI (DI in, int byte)
 390 {
 391   assert (byte >= 0 && byte <= 7);
 392   return (UQI) (in >> (8 * (7 - byte)));
 393 }
 394
 395 SEMOPS_INLINE SI
 396 SUBWORDDISI (DI in, int word)
 397 {
 398   if (word == 0)
 399     return (UDI) in >> 32;
 400   else
 401     return in;
 402 }
 403
 404 SEMOPS_INLINE SI
 405 SUBWORDDFSI (DF in, int word)
 406 {
 407   /* Note: typedef UDI DF; */
 408   if (word == 0)
 409     return (UDI) in >> 32;
 410   else
 411     return in;
 412 }
 413
 414 SEMOPS_INLINE SI
 415 SUBWORDXFSI (XF in, int word)
 416 {
 417   /* Note: typedef struct { SI parts[3]; } XF; */
 418   union { XF in; SI out[3]; } x;
 419   x.in = in;
 420   return x.out[word];
 421 }
 422
 423 SEMOPS_INLINE SI
 424 SUBWORDTFSI (TF in, int word)
 425 {
 426   /* Note: typedef struct { SI parts[4]; } TF; */
 427   union { TF in; SI out[4]; } x;
 428   x.in = in;
 429   return x.out[word];
 430 }
 431
 432 #endif /* SUBWORD,JOIN */
 433
 434 #endif /* CGEN_SEM_OPS_H */