include/opcode/ppc.h

   1 /* ppc.h -- Header file for PowerPC opcode table
   2    Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   3    2007, 2008, 2009, 2010, 2012 Free Software Foundation, Inc.
   4    Written by Ian Lance Taylor, Cygnus Support
   5
   6    This file is part of GDB, GAS, and the GNU binutils.
   7
   8    GDB, GAS, and the GNU binutils are free software; you can redistribute
   9    them and/or modify them under the terms of the GNU General Public
  10    License as published by the Free Software Foundation; either version 3,
  11    or (at your option) any later version.
  12
  13    GDB, GAS, and the GNU binutils are distributed in the hope that they
  14    will be useful, but WITHOUT ANY WARRANTY; without even the implied
  15    warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
  16    the GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this file; see the file COPYING3.  If not, write to the Free
  20    Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #ifndef PPC_H
  24 #define PPC_H
  25
  26 #include "bfd_stdint.h"
  27
  28 typedef uint64_t ppc_cpu_t;
  29
  30 /* The opcode table is an array of struct powerpc_opcode.  */
  31
  32 struct powerpc_opcode
  33 {
  34   /* The opcode name.  */
  35   const char *name;
  36
  37   /* The opcode itself.  Those bits which will be filled in with
  38      operands are zeroes.  */
  39   unsigned long opcode;
  40
  41   /* The opcode mask.  This is used by the disassembler.  This is a
  42      mask containing ones indicating those bits which must match the
  43      opcode field, and zeroes indicating those bits which need not
  44      match (and are presumably filled in by operands).  */
  45   unsigned long mask;
  46
  47   /* One bit flags for the opcode.  These are used to indicate which
  48      specific processors support the instructions.  The defined values
  49      are listed below.  */
  50   ppc_cpu_t flags;
  51
  52   /* One bit flags for the opcode.  These are used to indicate which
  53      specific processors no longer support the instructions.  The defined
  54      values are listed below.  */
  55   ppc_cpu_t deprecated;
  56
  57   /* An array of operand codes.  Each code is an index into the
  58      operand table.  They appear in the order which the operands must
  59      appear in assembly code, and are terminated by a zero.  */
  60   unsigned char operands[8];
  61 };
  62
  63 /* The table itself is sorted by major opcode number, and is otherwise
  64    in the order in which the disassembler should consider
  65    instructions.  */
  66 extern const struct powerpc_opcode powerpc_opcodes[];
  67 extern const int powerpc_num_opcodes;
  68 extern const struct powerpc_opcode vle_opcodes[];
  69 extern const int vle_num_opcodes;
  70
  71 /* Values defined for the flags field of a struct powerpc_opcode.  */
  72
  73 /* Opcode is defined for the PowerPC architecture.  */
  74 #define PPC_OPCODE_PPC                   1
  75
  76 /* Opcode is defined for the POWER (RS/6000) architecture.  */
  77 #define PPC_OPCODE_POWER                 2
  78
  79 /* Opcode is defined for the POWER2 (Rios 2) architecture.  */
  80 #define PPC_OPCODE_POWER2                4
  81
  82 /* Opcode is supported by the Motorola PowerPC 601 processor.  The 601
  83    is assumed to support all PowerPC (PPC_OPCODE_PPC) instructions,
  84    but it also supports many additional POWER instructions.  */
  85 #define PPC_OPCODE_601                   8
  86
  87 /* Opcode is supported in both the Power and PowerPC architectures
  88    (ie, compiler's -mcpu=common or assembler's -mcom).  More than just
  89    the intersection of PPC_OPCODE_PPC with the union of PPC_OPCODE_POWER
  90    and PPC_OPCODE_POWER2 because many instructions changed mnemonics
  91    between POWER and POWERPC.  */
  92 #define PPC_OPCODE_COMMON             0x10
  93
  94 /* Opcode is supported for any Power or PowerPC platform (this is
  95    for the assembler's -many option, and it eliminates duplicates).  */
  96 #define PPC_OPCODE_ANY                0x20
  97
  98 /* Opcode is only defined on 64 bit architectures.  */
  99 #define PPC_OPCODE_64                 0x40
 100
 101 /* Opcode is supported as part of the 64-bit bridge.  */
 102 #define PPC_OPCODE_64_BRIDGE          0x80
 103
 104 /* Opcode is supported by Altivec Vector Unit */
 105 #define PPC_OPCODE_ALTIVEC           0x100
 106
 107 /* Opcode is supported by PowerPC 403 processor.  */
 108 #define PPC_OPCODE_403               0x200
 109
 110 /* Opcode is supported by PowerPC BookE processor.  */
 111 #define PPC_OPCODE_BOOKE             0x400
 112
 113 /* Opcode is supported by PowerPC 440 processor.  */
 114 #define PPC_OPCODE_440               0x800
 115
 116 /* Opcode is only supported by Power4 architecture.  */
 117 #define PPC_OPCODE_POWER4           0x1000
 118
 119 /* Opcode is only supported by Power7 architecture.  */
 120 #define PPC_OPCODE_POWER7           0x2000
 121
 122 /* Opcode is only supported by e500x2 Core.  */
 123 #define PPC_OPCODE_SPE              0x4000
 124
 125 /* Opcode is supported by e500x2 Integer select APU.  */
 126 #define PPC_OPCODE_ISEL             0x8000
 127
 128 /* Opcode is an e500 SPE floating point instruction.  */
 129 #define PPC_OPCODE_EFS             0x10000
 130
 131 /* Opcode is supported by branch locking APU.  */
 132 #define PPC_OPCODE_BRLOCK          0x20000
 133
 134 /* Opcode is supported by performance monitor APU.  */
 135 #define PPC_OPCODE_PMR             0x40000
 136
 137 /* Opcode is supported by cache locking APU.  */
 138 #define PPC_OPCODE_CACHELCK        0x80000
 139
 140 /* Opcode is supported by machine check APU.  */
 141 #define PPC_OPCODE_RFMCI          0x100000
 142
 143 /* Opcode is only supported by Power5 architecture.  */
 144 #define PPC_OPCODE_POWER5         0x200000
 145
 146 /* Opcode is supported by PowerPC e300 family.  */
 147 #define PPC_OPCODE_E300           0x400000
 148
 149 /* Opcode is only supported by Power6 architecture.  */
 150 #define PPC_OPCODE_POWER6         0x800000
 151
 152 /* Opcode is only supported by PowerPC Cell family.  */
 153 #define PPC_OPCODE_CELL          0x1000000
 154
 155 /* Opcode is supported by CPUs with paired singles support.  */
 156 #define PPC_OPCODE_PPCPS         0x2000000
 157
 158 /* Opcode is supported by Power E500MC */
 159 #define PPC_OPCODE_E500MC        0x4000000
 160
 161 /* Opcode is supported by PowerPC 405 processor.  */
 162 #define PPC_OPCODE_405           0x8000000
 163
 164 /* Opcode is supported by Vector-Scalar (VSX) Unit */
 165 #define PPC_OPCODE_VSX          0x10000000
 166
 167 /* Opcode is supported by A2.  */
 168 #define PPC_OPCODE_A2           0x20000000
 169
 170 /* Opcode is supported by PowerPC 476 processor.  */
 171 #define PPC_OPCODE_476          0x40000000
 172
 173 /* Opcode is supported by AppliedMicro Titan core */
 174 #define PPC_OPCODE_TITAN        0x80000000
 175
 176 /* Opcode which is supported by the e500 family */
 177 #define PPC_OPCODE_E500        0x100000000ull
 178
 179 /* Opcode is supported by Extended Altivec Vector Unit */
 180 #define PPC_OPCODE_ALTIVEC2    0x200000000ull
 181
 182 /* Opcode is supported by Power E6500 */
 183 #define PPC_OPCODE_E6500       0x400000000ull
 184
 185 /* Opcode is supported by Thread management APU */
 186 #define PPC_OPCODE_TMR         0x800000000ull
 187
 188 /* Opcode which is supported by the VLE extension.  */
 189 #define PPC_OPCODE_VLE        0x1000000000ull
 190
 191 /* A macro to extract the major opcode from an instruction.  */
 192 #define PPC_OP(i) (((i) >> 26) & 0x3f)
 193
 194 /* A macro to determine if the instruction is a 2-byte VLE insn.  */
 195 #define PPC_OP_SE_VLE(m) ((m) <= 0xffff)
 196
 197 /* A macro to extract the major opcode from a VLE instruction.  */
 198 #define VLE_OP(i,m) (((i) >> ((m) <= 0xffff ? 10 : 26)) & 0x3f)
 199
 200 /* A macro to convert a VLE opcode to a VLE opcode segment.  */
 201 #define VLE_OP_TO_SEG(i) ((i) >> 1)
 202 \f
 203 /* The operands table is an array of struct powerpc_operand.  */
 204
 205 struct powerpc_operand
 206 {
 207   /* A bitmask of bits in the operand.  */
 208   unsigned int bitm;
 209
 210   /* The shift operation to be applied to the operand.  No shift
 211      is made if this is zero.  For positive values, the operand
 212      is shifted left by SHIFT.  For negative values, the operand
 213      is shifted right by -SHIFT.  Use PPC_OPSHIFT_INV to indicate
 214      that BITM and SHIFT cannot be used to determine where the
 215      operand goes in the insn.  */
 216   int shift;
 217
 218   /* Insertion function.  This is used by the assembler.  To insert an
 219      operand value into an instruction, check this field.
 220
 221      If it is NULL, execute
 222          if (o->shift >= 0)
 223            i |= (op & o->bitm) << o->shift;
 224          else
 225            i |= (op & o->bitm) >> -o->shift;
 226      (i is the instruction which we are filling in, o is a pointer to
 227      this structure, and op is the operand value).
 228
 229      If this field is not NULL, then simply call it with the
 230      instruction and the operand value.  It will return the new value
 231      of the instruction.  If the ERRMSG argument is not NULL, then if
 232      the operand value is illegal, *ERRMSG will be set to a warning
 233      string (the operand will be inserted in any case).  If the
 234      operand value is legal, *ERRMSG will be unchanged (most operands
 235      can accept any value).  */
 236   unsigned long (*insert)
 237     (unsigned long instruction, long op, ppc_cpu_t dialect, const char **errmsg);
 238
 239   /* Extraction function.  This is used by the disassembler.  To
 240      extract this operand type from an instruction, check this field.
 241
 242      If it is NULL, compute
 243          if (o->shift >= 0)
 244            op = (i >> o->shift) & o->bitm;
 245          else
 246            op = (i << -o->shift) & o->bitm;
 247          if ((o->flags & PPC_OPERAND_SIGNED) != 0)
 248            sign_extend (op);
 249      (i is the instruction, o is a pointer to this structure, and op
 250      is the result).
 251
 252      If this field is not NULL, then simply call it with the
 253      instruction value.  It will return the value of the operand.  If
 254      the INVALID argument is not NULL, *INVALID will be set to
 255      non-zero if this operand type can not actually be extracted from
 256      this operand (i.e., the instruction does not match).  If the
 257      operand is valid, *INVALID will not be changed.  */
 258   long (*extract) (unsigned long instruction, ppc_cpu_t dialect, int *invalid);
 259
 260   /* One bit syntax flags.  */
 261   unsigned long flags;
 262 };
 263
 264 /* Elements in the table are retrieved by indexing with values from
 265    the operands field of the powerpc_opcodes table.  */
 266
 267 extern const struct powerpc_operand powerpc_operands[];
 268 extern const unsigned int num_powerpc_operands;
 269
 270 /* Use with the shift field of a struct powerpc_operand to indicate
 271      that BITM and SHIFT cannot be used to determine where the operand
 272      goes in the insn.  */
 273 #define PPC_OPSHIFT_INV (-1 << 31)
 274
 275 /* Values defined for the flags field of a struct powerpc_operand.  */
 276
 277 /* This operand takes signed values.  */
 278 #define PPC_OPERAND_SIGNED (0x1)
 279
 280 /* This operand takes signed values, but also accepts a full positive
 281    range of values when running in 32 bit mode.  That is, if bits is
 282    16, it takes any value from -0x8000 to 0xffff.  In 64 bit mode,
 283    this flag is ignored.  */
 284 #define PPC_OPERAND_SIGNOPT (0x2)
 285
 286 /* This operand does not actually exist in the assembler input.  This
 287    is used to support extended mnemonics such as mr, for which two
 288    operands fields are identical.  The assembler should call the
 289    insert function with any op value.  The disassembler should call
 290    the extract function, ignore the return value, and check the value
 291    placed in the valid argument.  */
 292 #define PPC_OPERAND_FAKE (0x4)
 293
 294 /* The next operand should be wrapped in parentheses rather than
 295    separated from this one by a comma.  This is used for the load and
 296    store instructions which want their operands to look like
 297        reg,displacement(reg)
 298    */
 299 #define PPC_OPERAND_PARENS (0x8)
 300
 301 /* This operand may use the symbolic names for the CR fields, which
 302    are
 303        lt  0    gt  1   eq  2   so  3   un  3
 304        cr0 0    cr1 1   cr2 2   cr3 3
 305        cr4 4    cr5 5   cr6 6   cr7 7
 306    These may be combined arithmetically, as in cr2*4+gt.  These are
 307    only supported on the PowerPC, not the POWER.  */
 308 #define PPC_OPERAND_CR_BIT (0x10)
 309
 310 /* This operand names a register.  The disassembler uses this to print
 311    register names with a leading 'r'.  */
 312 #define PPC_OPERAND_GPR (0x20)
 313
 314 /* Like PPC_OPERAND_GPR, but don't print a leading 'r' for r0.  */
 315 #define PPC_OPERAND_GPR_0 (0x40)
 316
 317 /* This operand names a floating point register.  The disassembler
 318    prints these with a leading 'f'.  */
 319 #define PPC_OPERAND_FPR (0x80)
 320
 321 /* This operand is a relative branch displacement.  The disassembler
 322    prints these symbolically if possible.  */
 323 #define PPC_OPERAND_RELATIVE (0x100)
 324
 325 /* This operand is an absolute branch address.  The disassembler
 326    prints these symbolically if possible.  */
 327 #define PPC_OPERAND_ABSOLUTE (0x200)
 328
 329 /* This operand is optional, and is zero if omitted.  This is used for
 330    example, in the optional BF field in the comparison instructions.  The
 331    assembler must count the number of operands remaining on the line,
 332    and the number of operands remaining for the opcode, and decide
 333    whether this operand is present or not.  The disassembler should
 334    print this operand out only if it is not zero.  */
 335 #define PPC_OPERAND_OPTIONAL (0x400)
 336
 337 /* This flag is only used with PPC_OPERAND_OPTIONAL.  If this operand
 338    is omitted, then for the next operand use this operand value plus
 339    1, ignoring the next operand field for the opcode.  This wretched
 340    hack is needed because the Power rotate instructions can take
 341    either 4 or 5 operands.  The disassembler should print this operand
 342    out regardless of the PPC_OPERAND_OPTIONAL field.  */
 343 #define PPC_OPERAND_NEXT (0x800)
 344
 345 /* This operand should be regarded as a negative number for the
 346    purposes of overflow checking (i.e., the normal most negative
 347    number is disallowed and one more than the normal most positive
 348    number is allowed).  This flag will only be set for a signed
 349    operand.  */
 350 #define PPC_OPERAND_NEGATIVE (0x1000)
 351
 352 /* This operand names a vector unit register.  The disassembler
 353    prints these with a leading 'v'.  */
 354 #define PPC_OPERAND_VR (0x2000)
 355
 356 /* This operand is for the DS field in a DS form instruction.  */
 357 #define PPC_OPERAND_DS (0x4000)
 358
 359 /* This operand is for the DQ field in a DQ form instruction.  */
 360 #define PPC_OPERAND_DQ (0x8000)
 361
 362 /* Valid range of operand is 0..n rather than 0..n-1.  */
 363 #define PPC_OPERAND_PLUS1 (0x10000)
 364
 365 /* Xilinx APU and FSL related operands */
 366 #define PPC_OPERAND_FSL (0x20000)
 367 #define PPC_OPERAND_FCR (0x40000)
 368 #define PPC_OPERAND_UDI (0x80000)
 369
 370 /* This operand names a vector-scalar unit register.  The disassembler
 371    prints these with a leading 'vs'.  */
 372 #define PPC_OPERAND_VSR (0x100000)
 373
 374 /* This is a CR FIELD that does not use symbolic names.  */
 375 #define PPC_OPERAND_CR_REG (0x200000)
 376 \f
 377 /* The POWER and PowerPC assemblers use a few macros.  We keep them
 378    with the operands table for simplicity.  The macro table is an
 379    array of struct powerpc_macro.  */
 380
 381 struct powerpc_macro
 382 {
 383   /* The macro name.  */
 384   const char *name;
 385
 386   /* The number of operands the macro takes.  */
 387   unsigned int operands;
 388
 389   /* One bit flags for the opcode.  These are used to indicate which
 390      specific processors support the instructions.  The values are the
 391      same as those for the struct powerpc_opcode flags field.  */
 392   ppc_cpu_t flags;
 393
 394   /* A format string to turn the macro into a normal instruction.
 395      Each %N in the string is replaced with operand number N (zero
 396      based).  */
 397   const char *format;
 398 };
 399
 400 extern const struct powerpc_macro powerpc_macros[];
 401 extern const int powerpc_num_macros;
 402
 403 extern ppc_cpu_t ppc_parse_cpu (ppc_cpu_t, ppc_cpu_t *, const char *);
 404
 405 #endif /* PPC_H */