cpu/frv.opc

   1 /* Fujitsu FRV opcode support, for GNU Binutils.  -*- C -*-
   2
   3    Copyright 2000, 2001, 2003 Free Software Foundation, Inc.
   4
   5    Contributed by Red Hat Inc; developed under contract from Fujitsu.
   6
   7    This file is part of the GNU Binutils.
   8
   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 2 of the License, or
  12    (at your option) any later version.
  13
  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.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22
  23 */
  24
  25 /* This file is an addendum to frv.cpu.  Heavy use of C code isn't
  26    appropriate in .cpu files, so it resides here.  This especially applies
  27    to assembly/disassembly where parsing/printing can be quite involved.
  28    Such things aren't really part of the specification of the cpu, per se,
  29    so .cpu files provide the general framework and .opc files handle the
  30    nitty-gritty details as necessary.
  31
  32    Each section is delimited with start and end markers.
  33
  34    <arch>-opc.h additions use: "-- opc.h"
  35    <arch>-opc.c additions use: "-- opc.c"
  36    <arch>-asm.c additions use: "-- asm.c"
  37    <arch>-dis.c additions use: "-- dis.c"
  38    <arch>-ibd.h additions use: "-- ibd.h"
  39 */
  40 \f
  41 /* -- opc.h */
  42
  43 #undef  CGEN_DIS_HASH_SIZE
  44 #define CGEN_DIS_HASH_SIZE 128
  45 #undef  CGEN_DIS_HASH
  46 #define CGEN_DIS_HASH(buffer, value) (((value) >> 18) & 127)
  47
  48 /* Allows reason codes to be output when assembler errors occur.  */
  49 #define CGEN_VERBOSE_ASSEMBLER_ERRORS
  50
  51 /* Vliw support.  */
  52 #define FRV_VLIW_SIZE 8 /* fr550 has largest vliw size of 8.  */
  53 #define PAD_VLIW_COMBO ,UNIT_NIL,UNIT_NIL,UNIT_NIL,UNIT_NIL
  54 typedef CGEN_ATTR_VALUE_TYPE VLIW_COMBO[FRV_VLIW_SIZE];
  55
  56 typedef struct
  57 {
  58   int                   next_slot;
  59   int                   constraint_violation;
  60   unsigned long         mach;
  61   unsigned long         elf_flags;
  62   CGEN_ATTR_VALUE_TYPE *unit_mapping;
  63   VLIW_COMBO           *current_vliw;
  64   CGEN_ATTR_VALUE_TYPE  major[FRV_VLIW_SIZE];
  65   const CGEN_INSN*      insn[FRV_VLIW_SIZE];
  66 } FRV_VLIW;
  67
  68 int frv_is_branch_major PARAMS ((CGEN_ATTR_VALUE_TYPE, unsigned long));
  69 int frv_is_float_major  PARAMS ((CGEN_ATTR_VALUE_TYPE, unsigned long));
  70 int frv_is_media_major  PARAMS ((CGEN_ATTR_VALUE_TYPE, unsigned long));
  71 int frv_is_branch_insn  PARAMS ((const CGEN_INSN *));
  72 int frv_is_float_insn   PARAMS ((const CGEN_INSN *));
  73 int frv_is_media_insn   PARAMS ((const CGEN_INSN *));
  74 void frv_vliw_reset     PARAMS ((FRV_VLIW *, unsigned long mach, unsigned long elf_flags));
  75 int frv_vliw_add_insn   PARAMS ((FRV_VLIW *, const CGEN_INSN *));
  76 int spr_valid           PARAMS ((long));
  77 /* -- */
  78 \f
  79 /* -- opc.c */
  80 #include "elf/frv.h"
  81 #include <stdio.h>
  82
  83 static int match_unit
  84   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE, CGEN_ATTR_VALUE_TYPE));
  85 static int match_vliw
  86   PARAMS ((VLIW_COMBO *, VLIW_COMBO *, int));
  87 static VLIW_COMBO * add_next_to_vliw
  88   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
  89 static int find_major_in_vliw
  90   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
  91 static int fr400_check_insn_major_constraints
  92   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
  93 static int fr500_check_insn_major_constraints
  94   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE));
  95 static int fr550_check_insn_major_constraints
  96   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE, const CGEN_INSN *));
  97 static int check_insn_major_constraints
  98   PARAMS ((FRV_VLIW *, CGEN_ATTR_VALUE_TYPE, const CGEN_INSN *));
  99
 100 int
 101 frv_is_branch_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach)
 102 {
 103   switch (mach)
 104     {
 105     case bfd_mach_fr400:
 106       if (major >= FR400_MAJOR_B_1 && major <= FR400_MAJOR_B_6)
 107         return 1; /* is a branch */
 108       break;
 109     default:
 110       if (major >= FR500_MAJOR_B_1 && major <= FR500_MAJOR_B_6)
 111         return 1; /* is a branch */
 112       break;
 113     }
 114
 115   return 0; /* not a branch */
 116 }
 117
 118 int
 119 frv_is_float_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach)
 120 {
 121   switch (mach)
 122     {
 123     case bfd_mach_fr400:
 124       return 0; /* No float insns */
 125     default:
 126       if (major >= FR500_MAJOR_F_1 && major <= FR500_MAJOR_F_8)
 127         return 1; /* is a float insn */
 128       break;
 129     }
 130
 131   return 0; /* not a branch */
 132 }
 133
 134 int
 135 frv_is_media_major (CGEN_ATTR_VALUE_TYPE major, unsigned long mach)
 136 {
 137   switch (mach)
 138     {
 139     case bfd_mach_fr400:
 140       if (major >= FR400_MAJOR_M_1 && major <= FR400_MAJOR_M_2)
 141         return 1; /* is a media insn */
 142       break;
 143     default:
 144       if (major >= FR500_MAJOR_M_1 && major <= FR500_MAJOR_M_8)
 145         return 1; /* is a media insn */
 146       break;
 147     }
 148
 149   return 0; /* not a branch */
 150 }
 151
 152 int
 153 frv_is_branch_insn (const CGEN_INSN *insn)
 154 {
 155   if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
 156                            bfd_mach_fr400))
 157     return 1;
 158   if (frv_is_branch_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
 159                            bfd_mach_fr500))
 160     return 1;
 161
 162   return 0;
 163 }
 164
 165 int
 166 frv_is_float_insn (const CGEN_INSN *insn)
 167 {
 168   if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
 169                           bfd_mach_fr400))
 170     return 1;
 171   if (frv_is_float_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
 172                           bfd_mach_fr500))
 173     return 1;
 174
 175   return 0;
 176 }
 177
 178 int
 179 frv_is_media_insn (const CGEN_INSN *insn)
 180 {
 181   if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR),
 182                           bfd_mach_fr400))
 183     return 1;
 184   if (frv_is_media_major (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR),
 185                           bfd_mach_fr500))
 186     return 1;
 187
 188   return 0;
 189 }
 190
 191 /* This table represents the allowable packing for vliw insns for the fr400.
 192    The fr400 has only 2 vliw slots. Represent this by not allowing any insns
 193    in the extra slots.
 194    Subsets of any given row are also allowed.  */
 195 static VLIW_COMBO fr400_allowed_vliw[] =
 196 {
 197   /*  slot0       slot1       slot2       slot3    */
 198   {  UNIT_I0,    UNIT_I1,    UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 199   {  UNIT_I0,    UNIT_FM0,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 200   {  UNIT_I0,    UNIT_B0,    UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 201   {  UNIT_FM0,   UNIT_FM1,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 202   {  UNIT_FM0,   UNIT_B0,    UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 203   {  UNIT_B0,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 204   {  UNIT_C,     UNIT_NIL,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 205   {  UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO }
 206 };
 207
 208 /* This table represents the allowable packing for vliw insns for the fr500.
 209    The fr500 has only 4 vliw slots. Represent this by not allowing any insns
 210    in the extra slots.
 211    Subsets of any given row are also allowed.  */
 212 static VLIW_COMBO fr500_allowed_vliw[] =
 213 {
 214   /*  slot0       slot1       slot2       slot3    */
 215   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1  PAD_VLIW_COMBO },
 216   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_B0   PAD_VLIW_COMBO },
 217   {  UNIT_I0,    UNIT_FM0,   UNIT_FM1,   UNIT_B0   PAD_VLIW_COMBO },
 218   {  UNIT_I0,    UNIT_FM0,   UNIT_B0,    UNIT_B1   PAD_VLIW_COMBO },
 219   {  UNIT_I0,    UNIT_I1,    UNIT_B0,    UNIT_B1   PAD_VLIW_COMBO },
 220   {  UNIT_I0,    UNIT_B0,    UNIT_B1,    UNIT_NIL  PAD_VLIW_COMBO },
 221   {  UNIT_FM0,   UNIT_FM1,   UNIT_B0,    UNIT_B1   PAD_VLIW_COMBO },
 222   {  UNIT_FM0,   UNIT_B0,    UNIT_B1,    UNIT_NIL  PAD_VLIW_COMBO },
 223   {  UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 224   {  UNIT_C,     UNIT_NIL,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO },
 225   {  UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL  PAD_VLIW_COMBO }
 226 };
 227
 228 /* This table represents the allowable packing for vliw insns for the fr550.
 229    Subsets of any given row are also allowed.  */
 230 static VLIW_COMBO fr550_allowed_vliw[] =
 231 {
 232   /*  slot0       slot1       slot2       slot3       slot4       slot5       slot6       slot7   */
 233   {  UNIT_I0,    UNIT_I1,    UNIT_I2,    UNIT_I3,    UNIT_B0,    UNIT_B1 ,   UNIT_NIL,   UNIT_NIL },
 234   {  UNIT_I0,    UNIT_I1,    UNIT_I2,    UNIT_B0,    UNIT_B1 ,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 235   {  UNIT_I0,    UNIT_I1,    UNIT_B0,    UNIT_B1 ,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 236   {  UNIT_I0,    UNIT_B0,    UNIT_B1 ,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 237   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_FM2,   UNIT_I3,    UNIT_FM3 },
 238   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_FM2,   UNIT_I3,    UNIT_B0  },
 239   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_FM2,   UNIT_FM3,   UNIT_B0  },
 240   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_FM2,   UNIT_B0,    UNIT_B1  },
 241   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_I3,    UNIT_B0,    UNIT_B1  },
 242   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_I2,    UNIT_B0,    UNIT_B1,    UNIT_NIL },
 243   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_FM2,   UNIT_FM3,   UNIT_B0,    UNIT_B1  },
 244   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_FM2,   UNIT_FM3,   UNIT_B0,    UNIT_B1  },
 245   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_FM2,   UNIT_B0,    UNIT_B1,    UNIT_NIL },
 246   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_FM1,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL },
 247   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_I2,    UNIT_I3,    UNIT_B0,    UNIT_B1,    UNIT_NIL },
 248   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_I2,    UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL },
 249   {  UNIT_I0,    UNIT_FM0,   UNIT_I1,    UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 250   {  UNIT_I0,    UNIT_FM0,   UNIT_FM1,   UNIT_FM2,   UNIT_FM3,   UNIT_B0,    UNIT_B1,    UNIT_NIL },
 251   {  UNIT_I0,    UNIT_FM0,   UNIT_FM1,   UNIT_FM2,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL },
 252   {  UNIT_I0,    UNIT_FM0,   UNIT_FM1,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 253   {  UNIT_I0,    UNIT_FM0,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 254   {  UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 255   {  UNIT_C,     UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 256   {  UNIT_FM0,   UNIT_FM1,   UNIT_FM2,   UNIT_FM3,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL },
 257   {  UNIT_FM0,   UNIT_FM1,   UNIT_FM2,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 258   {  UNIT_FM0,   UNIT_FM1,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 259   {  UNIT_FM0,   UNIT_B0,    UNIT_B1,    UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL },
 260   {  UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL,   UNIT_NIL }
 261 };
 262
 263 /* Some insns are assigned specialized implementation units which map to
 264    different actual implementation units on different machines.  These
 265    tables perform that mapping.  */
 266 static CGEN_ATTR_VALUE_TYPE fr400_unit_mapping[] =
 267 {
 268 /* unit in insn    actual unit */
 269 /* NIL      */     UNIT_NIL,
 270 /* I0       */     UNIT_I0,
 271 /* I1       */     UNIT_I1,
 272 /* I01      */     UNIT_I01,
 273 /* I2       */     UNIT_NIL, /* no I2 or I3 unit */
 274 /* I3       */     UNIT_NIL,
 275 /* IALL     */     UNIT_I01, /* only I0 and I1 units */
 276 /* FM0      */     UNIT_FM0,
 277 /* FM1      */     UNIT_FM1,
 278 /* FM01     */     UNIT_FM01,
 279 /* FM2      */     UNIT_NIL, /* no F2 or M2 units */
 280 /* FM3      */     UNIT_NIL, /* no F3 or M3 units */
 281 /* FMALL    */     UNIT_FM01,/* Only F0,F1,M0,M1 units */
 282 /* FMLOW    */     UNIT_FM0, /* Only F0,M0 units */
 283 /* B0       */     UNIT_B0,  /* branches only in B0 unit.  */
 284 /* B1       */     UNIT_B0,
 285 /* B01      */     UNIT_B0,
 286 /* C        */     UNIT_C,
 287 /* MULT-DIV */     UNIT_I0,  /* multiply and divide only in I0  unit.  */
 288 /* LOAD     */     UNIT_I0,  /* load                only in I0  unit.  */
 289 /* STORE    */     UNIT_I0,  /* store               only in I0  unit.  */
 290 /* SCAN     */     UNIT_I0,  /* scan                only in I0  unit.  */
 291 /* DCPL     */     UNIT_C,   /* dcpl                only in C   unit.  */
 292 /* MDUALACC */     UNIT_FM0, /* media dual acc insn only in FM0 unit.  */
 293 /* MCLRACC-1*/     UNIT_FM0  /* mclracc,A==1   insn only in FM0 unit.  */
 294 };
 295
 296 static CGEN_ATTR_VALUE_TYPE fr500_unit_mapping[] =
 297 {
 298 /* unit in insn    actual unit */
 299 /* NIL      */     UNIT_NIL,
 300 /* I0       */     UNIT_I0,
 301 /* I1       */     UNIT_I1,
 302 /* I01      */     UNIT_I01,
 303 /* I2       */     UNIT_NIL, /* no I2 or I3 unit */
 304 /* I3       */     UNIT_NIL,
 305 /* IALL     */     UNIT_I01, /* only I0 and I1 units */
 306 /* FM0      */     UNIT_FM0,
 307 /* FM1      */     UNIT_FM1,
 308 /* FM01     */     UNIT_FM01,
 309 /* FM2      */     UNIT_NIL, /* no F2 or M2 units */
 310 /* FM3      */     UNIT_NIL, /* no F3 or M2 units */
 311 /* FMALL    */     UNIT_FM01,/* Only F0,F1,M0,M1 units */
 312 /* FMLOW    */     UNIT_FM0, /* Only F0,M0 units */
 313 /* B0       */     UNIT_B0,
 314 /* B1       */     UNIT_B1,
 315 /* B01      */     UNIT_B01,
 316 /* C        */     UNIT_C,
 317 /* MULT-DIV */     UNIT_I01, /* multiply and divide in I0 or I1 unit.  */
 318 /* LOAD     */     UNIT_I01, /* load                in I0 or I1 unit.  */
 319 /* STORE    */     UNIT_I0,  /* store               only in I0 unit.  */
 320 /* SCAN     */     UNIT_I01, /* scan                in I0 or I1 unit.  */
 321 /* DCPL     */     UNIT_C,   /* dcpl                only in C unit.  */
 322 /* MDUALACC */     UNIT_FM0, /* media dual acc insn only in FM0 unit.  */
 323 /* MCLRACC-1*/     UNIT_FM01 /* mclracc,A==1 in FM0 or FM1 unit.  */
 324 };
 325
 326 static CGEN_ATTR_VALUE_TYPE fr550_unit_mapping[] =
 327 {
 328 /* unit in insn    actual unit */
 329 /* NIL      */     UNIT_NIL,
 330 /* I0       */     UNIT_I0,
 331 /* I1       */     UNIT_I1,
 332 /* I01      */     UNIT_I01,
 333 /* I2       */     UNIT_I2,
 334 /* I3       */     UNIT_I3,
 335 /* IALL     */     UNIT_IALL,
 336 /* FM0      */     UNIT_FM0,
 337 /* FM1      */     UNIT_FM1,
 338 /* FM01     */     UNIT_FM01,
 339 /* FM2      */     UNIT_FM2,
 340 /* FM3      */     UNIT_FM3,
 341 /* FMALL    */     UNIT_FMALL,
 342 /* FMLOW    */     UNIT_FM01, /* Only F0,F1,M0,M1 units */
 343 /* B0       */     UNIT_B0,
 344 /* B1       */     UNIT_B1,
 345 /* B01      */     UNIT_B01,
 346 /* C        */     UNIT_C,
 347 /* MULT-DIV */     UNIT_I01,  /* multiply and divide in I0 or I1 unit.    */
 348 /* LOAD     */     UNIT_I01,  /* load                in I0 or I1 unit.    */
 349 /* STORE    */     UNIT_I01,  /* store               in I0 or I1 unit.    */
 350 /* SCAN     */     UNIT_IALL, /* scan                in any integer unit. */
 351 /* DCPL     */     UNIT_I0,   /* dcpl                only in I0 unit.     */
 352 /* MDUALACC */     UNIT_FMALL,/* media dual acc insn in all media units   */
 353 /* MCLRACC-1*/     UNIT_FM01  /* mclracc,A==1 in FM0 or FM1 unit.         */
 354 };
 355
 356 void
 357 frv_vliw_reset (FRV_VLIW *vliw, unsigned long mach, unsigned long elf_flags)
 358 {
 359   vliw->next_slot = 0;
 360   vliw->constraint_violation = 0;
 361   vliw->mach = mach;
 362   vliw->elf_flags = elf_flags;
 363
 364   switch (mach)
 365     {
 366     case bfd_mach_fr400:
 367       vliw->current_vliw = fr400_allowed_vliw;
 368       vliw->unit_mapping = fr400_unit_mapping;
 369       break;
 370     case bfd_mach_fr550:
 371       vliw->current_vliw = fr550_allowed_vliw;
 372       vliw->unit_mapping = fr550_unit_mapping;
 373       break;
 374     default:
 375       vliw->current_vliw = fr500_allowed_vliw;
 376       vliw->unit_mapping = fr500_unit_mapping;
 377       break;
 378     }
 379 }
 380
 381 /* Return 1 if unit1 is a match for unit2.
 382    Unit1 comes from the insn's UNIT attribute. unit2 comes from one of the
 383    *_allowed_vliw tables above.  */
 384 static int
 385 match_unit (FRV_VLIW *vliw,
 386             CGEN_ATTR_VALUE_TYPE unit1, CGEN_ATTR_VALUE_TYPE unit2)
 387 {
 388   /* Map any specialized implementation units to actual ones.  */
 389   unit1 = vliw->unit_mapping[unit1];
 390
 391   if (unit1 == unit2)
 392     return 1;
 393   if (unit1 < unit2)
 394     return 0;
 395
 396   switch (unit1)
 397     {
 398     case UNIT_I01:
 399     case UNIT_FM01:
 400     case UNIT_B01:
 401       /* The 01 versions of these units are within 2 enums of the 0 or 1
 402          versions.  */
 403       if (unit1 - unit2 <= 2)
 404         return 1;
 405       break;
 406     case UNIT_IALL:
 407     case UNIT_FMALL:
 408       /* The ALL versions of these units are within 5 enums of the 0, 1, 2 or 3
 409          versions.  */
 410       if (unit1 - unit2 <= 5)
 411         return 1;
 412       break;
 413     default:
 414       break;
 415     }
 416
 417   return 0;
 418 }
 419
 420 /* Return 1 if the vliws match, 0 otherwise.  */
 421
 422 static int
 423 match_vliw (VLIW_COMBO *vliw1, VLIW_COMBO *vliw2, int vliw_size)
 424 {
 425   int i;
 426
 427   for (i = 0; i < vliw_size; ++i)
 428     {
 429       if ((*vliw1)[i] != (*vliw2)[i])
 430         return 0;
 431     }
 432
 433   return 1;
 434 }
 435
 436 /* Find the next vliw vliw in the table that can accomodate the new insn.
 437    If one is found then return it. Otherwise return NULL.  */
 438
 439 static VLIW_COMBO *
 440 add_next_to_vliw (FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE unit)
 441 {
 442   int           next    = vliw->next_slot;
 443   VLIW_COMBO    *current = vliw->current_vliw;
 444   VLIW_COMBO    *potential;
 445
 446   if (next <= 0)
 447     {
 448       fprintf (stderr, "frv-opc.c line %d: bad vliw->next_slot value.\n",
 449                __LINE__);
 450       abort (); /* Should never happen */
 451     }
 452
 453   /* The table is sorted by units allowed within slots, so vliws with
 454      identical starting sequences are together.  */
 455   potential = current;
 456   do
 457     {
 458       if (match_unit (vliw, unit, (*potential)[next]))
 459         return potential;
 460       ++potential;
 461     }
 462   while (match_vliw (potential, current, next));
 463
 464   return NULL;
 465 }
 466
 467 /* Look for the given major insn type in the given vliw. Return 1 if found,
 468    return 0 otherwise.  */
 469
 470 static int
 471 find_major_in_vliw (FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major)
 472 {
 473   int i;
 474
 475   for (i = 0; i < vliw->next_slot; ++i)
 476     if (vliw->major[i] == major)
 477       return 1;
 478
 479   return 0;
 480 }
 481
 482 /* Check for constraints between the insns in the vliw due to major insn
 483    types.  */
 484
 485 static int
 486 fr400_check_insn_major_constraints (
 487   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major
 488 )
 489 {
 490   /* In the cpu file, all media insns are represented as being allowed in
 491      both media units. This makes it easier since this is the case for fr500.
 492      Catch the invalid combinations here.  Insns of major class FR400_MAJOR_M_2
 493      cannot coexist with any other media insn in a vliw.  */
 494   switch (major)
 495     {
 496     case FR400_MAJOR_M_2:
 497       return ! find_major_in_vliw (vliw, FR400_MAJOR_M_1)
 498         &&   ! find_major_in_vliw (vliw, FR400_MAJOR_M_2);
 499     default:
 500       break;
 501     }
 502   return 1;
 503 }
 504
 505 static int
 506 find_unit_in_vliw (
 507   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE unit
 508 )
 509 {
 510   int i;
 511   for (i = 0; i < vliw->next_slot; ++i)
 512     if (CGEN_INSN_ATTR_VALUE (vliw->insn[i], CGEN_INSN_UNIT) == unit)
 513       return 1;
 514
 515   return 0; /* not found */
 516 }
 517
 518 static int
 519 find_major_in_slot (
 520   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major, CGEN_ATTR_VALUE_TYPE slot
 521 )
 522 {
 523   int i;
 524
 525   for (i = 0; i < vliw->next_slot; ++i)
 526     if (vliw->major[i] == major && (*vliw->current_vliw)[i] == slot)
 527       return 1;
 528
 529   return 0;
 530 }
 531
 532 static int
 533 fr550_find_media_in_vliw (FRV_VLIW *vliw)
 534 {
 535   int i;
 536
 537   for (i = 0; i < vliw->next_slot; ++i)
 538     {
 539       if (vliw->major[i] < FR550_MAJOR_M_1 || vliw->major[i] > FR550_MAJOR_M_5)
 540         continue;
 541
 542       /* Found a media insn, however, MNOP and MCLRACC don't count.  */
 543       if (CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MNOP
 544           || CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MCLRACC_0
 545           || CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_MCLRACC_1)
 546         continue;
 547
 548       return 1; /* found one */
 549     }
 550
 551   return 0;
 552 }
 553
 554 static int
 555 fr550_find_float_in_vliw (FRV_VLIW *vliw)
 556 {
 557   int i;
 558
 559   for (i = 0; i < vliw->next_slot; ++i)
 560     {
 561       if (vliw->major[i] < FR550_MAJOR_F_1 || vliw->major[i] > FR550_MAJOR_F_4)
 562         continue;
 563
 564       /* Found a floating point insn, however, FNOP doesn't count.  */
 565       if (CGEN_INSN_NUM (vliw->insn[i]) == FRV_INSN_FNOP)
 566         continue;
 567
 568       return 1; /* found one */
 569     }
 570
 571   return 0;
 572 }
 573
 574 static int
 575 fr550_check_insn_major_constraints (
 576   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major, const CGEN_INSN *insn
 577 )
 578 {
 579   CGEN_ATTR_VALUE_TYPE unit;
 580   CGEN_ATTR_VALUE_TYPE slot = (*vliw->current_vliw)[vliw->next_slot];
 581   switch (slot)
 582     {
 583     case UNIT_I2:
 584       /* If it's a store, then there must be another store in I1 */
 585       unit = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_UNIT);
 586       if (unit == UNIT_STORE)
 587         return find_unit_in_vliw (vliw, UNIT_STORE);
 588       break;
 589     case UNIT_FM2:
 590     case UNIT_FM3:
 591       /* Floating point insns other than FNOP in slot f2 or f3 cannot coexist with
 592          media insns.  */
 593       if (major >= FR550_MAJOR_F_1 && major <= FR550_MAJOR_F_4
 594           && CGEN_INSN_NUM (insn) != FRV_INSN_FNOP)
 595         return ! fr550_find_media_in_vliw (vliw);
 596       /* Media insns other than MNOP in slot m2 or m3 cannot coexist with
 597          floating point insns.  */
 598       if (major >= FR550_MAJOR_M_1 && major <= FR550_MAJOR_M_5
 599           && CGEN_INSN_NUM (insn) != FRV_INSN_MNOP)
 600         return ! fr550_find_float_in_vliw (vliw);
 601       /* F-2 in slot f2 or f3 cannot coexist with F-2 or F-4 in slot f1 or f2
 602          respectively.
 603        */
 604       if (major == FR550_MAJOR_F_2)
 605         return ! find_major_in_slot (vliw, FR550_MAJOR_F_2, slot - (UNIT_FM2 - UNIT_FM0))
 606           &&   ! find_major_in_slot (vliw, FR550_MAJOR_F_4, slot - (UNIT_FM2 - UNIT_FM0));
 607       /* M-2 or M-5 in slot m2 or m3 cannot coexist with M-2 in slot m1 or m2
 608          respectively.  */
 609       if (major == FR550_MAJOR_M_2 || major == FR550_MAJOR_M_5)
 610         return ! find_major_in_slot (vliw, FR550_MAJOR_M_2, slot - (UNIT_FM2 - UNIT_FM0));
 611       /* M-4 in slot m2 or m3 cannot coexist with M-4 in slot m1 or m2
 612          respectively.  */
 613       if (major == FR550_MAJOR_M_4)
 614         return ! find_major_in_slot (vliw, FR550_MAJOR_M_4, slot - (UNIT_FM2 - UNIT_FM0));
 615       break;
 616     default:
 617       break;
 618     }
 619   return 1; /* all ok */
 620 }
 621
 622 static int
 623 fr500_check_insn_major_constraints (
 624   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major
 625 )
 626 {
 627   /* TODO: A table might be faster for some of the more complex instances
 628      here.  */
 629   switch (major)
 630     {
 631     case FR500_MAJOR_I_1:
 632     case FR500_MAJOR_I_4:
 633     case FR500_MAJOR_I_5:
 634     case FR500_MAJOR_I_6:
 635     case FR500_MAJOR_B_1:
 636     case FR500_MAJOR_B_2:
 637     case FR500_MAJOR_B_3:
 638     case FR500_MAJOR_B_4:
 639     case FR500_MAJOR_B_5:
 640     case FR500_MAJOR_B_6:
 641     case FR500_MAJOR_F_4:
 642     case FR500_MAJOR_F_8:
 643     case FR500_MAJOR_M_8:
 644       return 1; /* OK */
 645     case FR500_MAJOR_I_2:
 646       /* Cannot coexist with I-3 insn.  */
 647       return ! find_major_in_vliw (vliw, FR500_MAJOR_I_3);
 648     case FR500_MAJOR_I_3:
 649       /* Cannot coexist with I-2 insn.  */
 650       return ! find_major_in_vliw (vliw, FR500_MAJOR_I_2);
 651     case FR500_MAJOR_F_1:
 652     case FR500_MAJOR_F_2:
 653       /* Cannot coexist with F-5, F-6, or M-7 insn.  */
 654       return ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
 655         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
 656         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 657     case FR500_MAJOR_F_3:
 658       /* Cannot coexist with F-7, or M-7 insn.  */
 659       return ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
 660         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 661     case FR500_MAJOR_F_5:
 662       /* Cannot coexist with F-1, F-2, F-6, F-7, or M-7 insn.  */
 663       return ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
 664         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
 665         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
 666         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
 667         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 668     case FR500_MAJOR_F_6:
 669       /* Cannot coexist with F-1, F-2, F-5, F-6, or M-7 insn.  */
 670       return ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
 671         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
 672         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
 673         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
 674         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 675     case FR500_MAJOR_F_7:
 676       /* Cannot coexist with F-3, F-5, F-7, or M-7 insn.  */
 677       return ! find_major_in_vliw (vliw, FR500_MAJOR_F_3)
 678         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
 679         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_7)
 680         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 681     case FR500_MAJOR_M_1:
 682       /* Cannot coexist with M-7 insn.  */
 683       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 684     case FR500_MAJOR_M_2:
 685     case FR500_MAJOR_M_3:
 686       /* Cannot coexist with M-5, M-6 or M-7 insn.  */
 687       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
 688         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
 689         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 690     case FR500_MAJOR_M_4:
 691       /* Cannot coexist with M-6 insn.  */
 692       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_6);
 693     case FR500_MAJOR_M_5:
 694       /* Cannot coexist with M-2, M-3, M-5, M-6  or M-7 insn.  */
 695       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
 696         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
 697         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
 698         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
 699         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 700     case FR500_MAJOR_M_6:
 701       /* Cannot coexist with M-2, M-3, M-4, M-5, M-6  or M-7 insn.  */
 702       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
 703         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
 704         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_4)
 705         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
 706         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
 707         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7);
 708     case FR500_MAJOR_M_7:
 709       /* Cannot coexist with M-1, M-2, M-3, M-5, M-6  or M-7 insn.  */
 710       return ! find_major_in_vliw (vliw, FR500_MAJOR_M_1)
 711         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_2)
 712         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_3)
 713         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_5)
 714         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_6)
 715         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_M_7)
 716         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_1)
 717         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_2)
 718         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_3)
 719         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_5)
 720         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_6)
 721         &&   ! find_major_in_vliw (vliw, FR500_MAJOR_F_7);
 722     default:
 723       fprintf (stderr, "frv-opc.c, line %d: bad major code, aborting.\n",
 724                __LINE__);
 725       abort ();
 726       break;
 727     }
 728   return 1;
 729 }
 730
 731 static int
 732 check_insn_major_constraints (
 733   FRV_VLIW *vliw, CGEN_ATTR_VALUE_TYPE major, const CGEN_INSN *insn
 734 )
 735 {
 736   int rc;
 737   switch (vliw->mach)
 738     {
 739     case bfd_mach_fr400:
 740       rc = fr400_check_insn_major_constraints (vliw, major);
 741       break;
 742     case bfd_mach_fr550:
 743       rc = fr550_check_insn_major_constraints (vliw, major, insn);
 744       break;
 745     default:
 746       rc = fr500_check_insn_major_constraints (vliw, major);
 747       break;
 748     }
 749   return rc;
 750 }
 751
 752 /* Add in insn to the VLIW vliw if possible. Return 0 if successful,
 753    non-zero otherwise.  */
 754 int
 755 frv_vliw_add_insn (FRV_VLIW *vliw, const CGEN_INSN *insn)
 756 {
 757   int index;
 758   CGEN_ATTR_VALUE_TYPE major;
 759   CGEN_ATTR_VALUE_TYPE unit;
 760   VLIW_COMBO *new_vliw;
 761
 762   if (vliw->constraint_violation || CGEN_INSN_INVALID_P (insn))
 763     return 1;
 764
 765   index = vliw->next_slot;
 766   if (index >= FRV_VLIW_SIZE)
 767     return 1;
 768
 769   unit = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_UNIT);
 770   if (unit == UNIT_NIL)
 771     {
 772       fprintf (stderr, "frv-opc.c line %d: bad insn unit.\n",
 773                __LINE__);
 774       abort (); /* no UNIT specified for this insn in frv.cpu  */
 775     }
 776
 777   switch (vliw->mach)
 778     {
 779     case bfd_mach_fr400:
 780       major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR400_MAJOR);
 781       break;
 782     case bfd_mach_fr550:
 783       major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR550_MAJOR);
 784       break;
 785     default:
 786       major = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_FR500_MAJOR);
 787       break;
 788     }
 789
 790   if (index <= 0)
 791     {
 792       /* Any insn can be added to slot 0.  */
 793       while (! match_unit (vliw, unit, (*vliw->current_vliw)[0]))
 794         ++vliw->current_vliw;
 795       vliw->major[0] = major;
 796       vliw->insn[0] = insn;
 797       vliw->next_slot = 1;
 798       return 0;
 799     }
 800
 801   /* If there are already insns in the vliw(s) check to see that
 802      this one can be added.  Do this by finding an allowable vliw
 803      combination that can accept the new insn.  */
 804   if (! (vliw->elf_flags & EF_FRV_NOPACK))
 805     {
 806       new_vliw = add_next_to_vliw (vliw, unit);
 807       if (new_vliw && check_insn_major_constraints (vliw, major, insn))
 808         {
 809           vliw->current_vliw = new_vliw;
 810           vliw->major[index] = major;
 811           vliw->insn[index] = insn;
 812           vliw->next_slot++;
 813           return 0;
 814         }
 815
 816       /* The frv machine supports all packing conbinations.  If we fail,
 817          to add the insn, then it could not be handled as if it was the fr500.
 818          Just return as if it was handled ok.  */
 819       if (vliw->mach == bfd_mach_frv)
 820         return 0;
 821     }
 822
 823   vliw->constraint_violation = 1;
 824   return 1;
 825 }
 826
 827 int
 828 spr_valid (regno)
 829      long regno;
 830 {
 831   if (regno < 0)     return 0;
 832   if (regno <= 4095) return 1;
 833   return 0;
 834 }
 835 /* -- */
 836 \f
 837 /* -- asm.c */
 838 static const char * parse_ulo16
 839   PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
 840 static const char * parse_uslo16
 841   PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
 842 static const char * parse_uhi16
 843   PARAMS ((CGEN_CPU_DESC, const char **, int, unsigned long *));
 844 static long parse_register_number
 845   PARAMS ((const char **));
 846 static const char * parse_spr
 847   PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *));
 848 static const char * parse_d12
 849   PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 850 static const char * parse_s12
 851   PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 852 static const char * parse_u12
 853   PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 854 static const char * parse_even_register
 855   PARAMS ((CGEN_CPU_DESC, const char **, CGEN_KEYWORD *, long *));
 856 static const char * parse_A0
 857   PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 858 static const char * parse_A1
 859   PARAMS ((CGEN_CPU_DESC, const char **, int, long *));
 860 static const char * parse_A
 861   PARAMS ((CGEN_CPU_DESC, const char **, int, long *, long));
 862
 863 static const char *
 864 parse_ulo16 (cd, strp, opindex, valuep)
 865      CGEN_CPU_DESC cd;
 866      const char **strp;
 867      int opindex;
 868      unsigned long *valuep;
 869 {
 870   const char *errmsg;
 871   enum cgen_parse_operand_result result_type;
 872   bfd_vma value;
 873
 874   if (**strp == '#' || **strp == '%')
 875     {
 876       if (strncasecmp (*strp + 1, "lo(", 3) == 0)
 877         {
 878           *strp += 4;
 879           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16,
 880                                        &result_type, &value);
 881           if (**strp != ')')
 882             return "missing `)'";
 883           ++*strp;
 884           if (errmsg == NULL
 885               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 886             value &= 0xffff;
 887           *valuep = value;
 888           return errmsg;
 889         }
 890       if (strncasecmp (*strp + 1, "gprello(", 8) == 0)
 891         {
 892           *strp += 9;
 893           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO,
 894                                        &result_type, &value);
 895           if (**strp != ')')
 896             return "missing ')'";
 897           ++*strp;
 898           if (errmsg == NULL
 899               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 900             value >>= 16;
 901           *valuep = value;
 902           return errmsg;
 903         }
 904     }
 905   return cgen_parse_signed_integer (cd, strp, opindex, valuep);
 906 }
 907
 908 static const char *
 909 parse_uslo16 (cd, strp, opindex, valuep)
 910      CGEN_CPU_DESC cd;
 911      const char **strp;
 912      int opindex;
 913      unsigned long *valuep;
 914 {
 915   const char *errmsg;
 916   enum cgen_parse_operand_result result_type;
 917   bfd_vma value;
 918
 919   if (**strp == '#' || **strp == '%')
 920     {
 921       if (strncasecmp (*strp + 1, "lo(", 3) == 0)
 922         {
 923           *strp += 4;
 924           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_LO16,
 925                                        &result_type, &value);
 926           if (**strp != ')')
 927             return "missing `)'";
 928           ++*strp;
 929           if (errmsg == NULL
 930               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 931             value &= 0xffff;
 932           *valuep = value;
 933           return errmsg;
 934         }
 935       else if (strncasecmp (*strp + 1, "gprello(", 8) == 0)
 936         {
 937           *strp += 9;
 938           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELLO,
 939                                        &result_type, &value);
 940           if (**strp != ')')
 941             return "missing ')'";
 942           ++*strp;
 943           if (errmsg == NULL
 944               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 945             value &= 0xffff;
 946           *valuep = value;
 947           return errmsg;
 948         }
 949     }
 950   return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
 951 }
 952
 953 static const char *
 954 parse_uhi16 (cd, strp, opindex, valuep)
 955      CGEN_CPU_DESC cd;
 956      const char **strp;
 957      int opindex;
 958      unsigned long *valuep;
 959 {
 960   const char *errmsg;
 961   enum cgen_parse_operand_result result_type;
 962   bfd_vma value;
 963
 964   if (**strp == '#' || **strp == '%')
 965     {
 966       if (strncasecmp (*strp + 1, "hi(", 3) == 0)
 967         {
 968           *strp += 4;
 969           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_HI16,
 970                                        &result_type, &value);
 971           if (**strp != ')')
 972             return "missing `)'";
 973           ++*strp;
 974           if (errmsg == NULL
 975               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 976             value >>= 16;
 977           *valuep = value;
 978           return errmsg;
 979         }
 980       else if (strncasecmp (*strp + 1, "gprelhi(", 8) == 0)
 981         {
 982           *strp += 9;
 983           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELHI,
 984                                        &result_type, &value);
 985           if (**strp != ')')
 986             return "missing ')'";
 987           ++*strp;
 988           if (errmsg == NULL
 989               && result_type == CGEN_PARSE_OPERAND_RESULT_NUMBER)
 990             value >>= 16;
 991           *valuep = value;
 992           return errmsg;
 993         }
 994     }
 995   return cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
 996 }
 997
 998 static long
 999 parse_register_number (strp)
1000      const char **strp;
1001 {
1002   int regno;
1003   if (**strp < '0' || **strp > '9')
1004     return -1; /* error */
1005
1006   regno = **strp - '0';
1007   for (++*strp; **strp >= '0' && **strp <= '9'; ++*strp)
1008     regno = regno * 10 + (**strp - '0');
1009
1010   return regno;
1011 }
1012
1013 static const char *
1014 parse_spr (cd, strp, table, valuep)
1015      CGEN_CPU_DESC cd;
1016      const char **strp;
1017      CGEN_KEYWORD * table;
1018      long *valuep;
1019 {
1020   const char *save_strp;
1021   long regno;
1022
1023   /* Check for spr index notation.  */
1024   if (strncasecmp (*strp, "spr[", 4) == 0)
1025     {
1026       *strp += 4;
1027       regno = parse_register_number (strp);
1028       if (**strp != ']')
1029         return "missing `]'";
1030       ++*strp;
1031       if (! spr_valid (regno))
1032         return "Special purpose register number is out of range";
1033       *valuep = regno;
1034       return NULL;
1035     }
1036
1037   save_strp = *strp;
1038   regno = parse_register_number (strp);
1039   if (regno != -1)
1040     {
1041       if (! spr_valid (regno))
1042         return "Special purpose register number is out of range";
1043       *valuep = regno;
1044       return NULL;
1045     }
1046
1047   *strp = save_strp;
1048   return cgen_parse_keyword (cd, strp, table, valuep);
1049 }
1050
1051 static const char *
1052 parse_d12 (cd, strp, opindex, valuep)
1053      CGEN_CPU_DESC cd;
1054      const char **strp;
1055      int opindex;
1056      long *valuep;
1057 {
1058   const char *errmsg;
1059   enum cgen_parse_operand_result result_type;
1060   bfd_vma value;
1061
1062   /* Check for small data reference.  */
1063   if (**strp == '#' || **strp == '%')
1064     {
1065       if (strncasecmp (*strp + 1, "gprel12(", 8) == 0)
1066         {
1067           *strp += 9;
1068           errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12,
1069                                        &result_type, &value);
1070           if (**strp != ')')
1071             return "missing `)'";
1072           ++*strp;
1073           *valuep = value;
1074           return errmsg;
1075         }
1076     }
1077   return cgen_parse_signed_integer (cd, strp, opindex, valuep);
1078 }
1079
1080 static const char *
1081 parse_s12 (cd, strp, opindex, valuep)
1082      CGEN_CPU_DESC cd;
1083      const char **strp;
1084      int opindex;
1085      long *valuep;
1086 {
1087   const char *errmsg;
1088   enum cgen_parse_operand_result result_type;
1089   bfd_vma value;
1090
1091   /* Check for small data reference.  */
1092   if ((**strp == '#' || **strp == '%')
1093       && strncasecmp (*strp + 1, "gprel12(", 8) == 0)
1094     {
1095       *strp += 9;
1096       errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPREL12,
1097                                     &result_type, &value);
1098       if (**strp != ')')
1099         return "missing `)'";
1100       ++*strp;
1101       *valuep = value;
1102       return errmsg;
1103     }
1104   else
1105     {
1106       if (**strp == '#')
1107         ++*strp;
1108       return cgen_parse_signed_integer (cd, strp, opindex, valuep);
1109     }
1110 }
1111
1112 static const char *
1113 parse_u12 (cd, strp, opindex, valuep)
1114      CGEN_CPU_DESC cd;
1115      const char **strp;
1116      int opindex;
1117      long *valuep;
1118 {
1119   const char *errmsg;
1120   enum cgen_parse_operand_result result_type;
1121   bfd_vma value;
1122
1123   /* Check for small data reference.  */
1124   if ((**strp == '#' || **strp == '%')
1125       && strncasecmp (*strp + 1, "gprel12(", 8) == 0)
1126     {
1127       *strp += 9;
1128       errmsg = cgen_parse_address (cd, strp, opindex, BFD_RELOC_FRV_GPRELU12,
1129                                     &result_type, &value);
1130       if (**strp != ')')
1131         return "missing `)'";
1132       ++*strp;
1133       *valuep = value;
1134       return errmsg;
1135     }
1136   else
1137     {
1138       if (**strp == '#')
1139         ++*strp;
1140       return cgen_parse_signed_integer (cd, strp, opindex, valuep);
1141     }
1142 }
1143
1144 static const char *
1145 parse_A (cd, strp, opindex, valuep, A)
1146      CGEN_CPU_DESC cd;
1147      const char **strp;
1148      int opindex;
1149      long *valuep;
1150      long A;
1151 {
1152   const char *errmsg;
1153
1154   if (**strp == '#')
1155     ++*strp;
1156
1157   errmsg = cgen_parse_unsigned_integer (cd, strp, opindex, valuep);
1158   if (errmsg)
1159     return errmsg;
1160
1161   if (*valuep != A)
1162     return "Value of A operand must be 0 or 1";
1163
1164   return NULL;
1165 }
1166
1167 static const char *
1168 parse_A0 (cd, strp, opindex, valuep)
1169      CGEN_CPU_DESC cd;
1170      const char **strp;
1171      int opindex;
1172      long *valuep;
1173 {
1174   return parse_A (cd, strp, opindex, valuep, 0);
1175 }
1176
1177 static const char *
1178 parse_A1 (cd, strp, opindex, valuep)
1179      CGEN_CPU_DESC cd;
1180      const char **strp;
1181      int opindex;
1182      long *valuep;
1183 {
1184   return parse_A (cd, strp, opindex, valuep, 1);
1185 }
1186
1187 static const char *
1188 parse_even_register (cd, strP, tableP, valueP)
1189      CGEN_CPU_DESC  cd;
1190      const char **  strP;
1191      CGEN_KEYWORD * tableP;
1192      long *         valueP;
1193 {
1194   const char * errmsg;
1195   const char * saved_star_strP = * strP;
1196
1197   errmsg = cgen_parse_keyword (cd, strP, tableP, valueP);
1198
1199   if (errmsg == NULL && ((* valueP) & 1))
1200     {
1201       errmsg = _("register number must be even");
1202       * strP = saved_star_strP;
1203     }
1204
1205   return errmsg;
1206 }
1207 /* -- */
1208 \f
1209 /* -- dis.c */
1210 static void print_spr
1211   PARAMS ((CGEN_CPU_DESC, PTR, CGEN_KEYWORD *, long, unsigned));
1212 static void print_hi
1213   PARAMS ((CGEN_CPU_DESC, PTR, long, unsigned, bfd_vma, int));
1214 static void print_lo
1215   PARAMS ((CGEN_CPU_DESC, PTR, long, unsigned, bfd_vma, int));
1216
1217 static void
1218 print_spr (cd, dis_info, names, regno, attrs)
1219      CGEN_CPU_DESC cd;
1220      PTR dis_info;
1221      CGEN_KEYWORD *names;
1222      long regno;
1223      unsigned int attrs;
1224 {
1225   /* Use the register index format for any unnamed registers.  */
1226   if (cgen_keyword_lookup_value (names, regno) == NULL)
1227     {
1228       disassemble_info *info = (disassemble_info *) dis_info;
1229       (*info->fprintf_func) (info->stream, "spr[%ld]", regno);
1230     }
1231   else
1232     print_keyword (cd, dis_info, names, regno, attrs);
1233 }
1234
1235 static void
1236 print_hi (cd, dis_info, value, attrs, pc, length)
1237      CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
1238      PTR dis_info;
1239      long value;
1240      unsigned int attrs ATTRIBUTE_UNUSED;
1241      bfd_vma pc ATTRIBUTE_UNUSED;
1242      int length ATTRIBUTE_UNUSED;
1243 {
1244   disassemble_info *info = (disassemble_info *) dis_info;
1245   if (value)
1246     (*info->fprintf_func) (info->stream, "0x%lx", value);
1247   else
1248     (*info->fprintf_func) (info->stream, "hi(0x%lx)", value);
1249 }
1250
1251 static void
1252 print_lo (cd, dis_info, value, attrs, pc, length)
1253      CGEN_CPU_DESC cd ATTRIBUTE_UNUSED;
1254      PTR dis_info;
1255      long value;
1256      unsigned int attrs ATTRIBUTE_UNUSED;
1257      bfd_vma pc ATTRIBUTE_UNUSED;
1258      int length ATTRIBUTE_UNUSED;
1259 {
1260   disassemble_info *info = (disassemble_info *) dis_info;
1261   if (value)
1262     (*info->fprintf_func) (info->stream, "0x%lx", value);
1263   else
1264     (*info->fprintf_func) (info->stream, "lo(0x%lx)", value);
1265 }
1266
1267 /* -- */