opcodes/arc-ext.h

   1 /* ARC target-dependent stuff. Extension data structures.
   2    Copyright 1995, 1997, 2000, 2001, 2005, 2007 Free Software Foundation, Inc.
   3
   4    This file is part of libopcodes.
   5
   6    This library 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 3, or (at your option)
   9    any later version.
  10
  11    It is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    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., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #ifndef ARCEXT_H
  22 #define ARCEXT_H
  23
  24
  25 enum { INST_HASH_BITS = 6 };
  26 enum {NUM_EXT_CORE = 59-32+1};
  27 enum {NUM_EXT_COND = 0x1f-0x10+1};
  28
  29 enum { INST_HASH_SIZE = 1 << INST_HASH_BITS };
  30 #define INST_HASH(MAJOR,MINOR) \
  31   ((((MAJOR) << 3) ^ (MINOR)) & ((INST_HASH_SIZE) - 1))
  32
  33 enum ExtOperType
  34   {
  35     EXT_INSTRUCTION,
  36     EXT_CORE_REGISTER,
  37     EXT_AUX_REGISTER,
  38     EXT_COND_CODE,
  39     EXT_AC_INSTRUCTION,
  40     EXT_LONG_CORE_REGISTER = 0x06
  41   };
  42
  43 /* Define this if we do not want to encode instructions based on the
  44    ARCompact Programmer's Reference.  */
  45 #define UNMANGLED
  46
  47 struct ExtInstruction
  48 {
  49   char major;
  50   char minor;
  51   char flags;
  52   char *name;
  53   struct ExtInstruction *next;
  54 };
  55
  56 struct ExtAuxRegister
  57 {
  58   long address;
  59   char *name;
  60   struct ExtAuxRegister *next;
  61 };
  62
  63 enum ExtReadWrite
  64   {
  65     REG_INVALID,
  66     REG_READ,
  67     REG_WRITE,
  68     REG_READWRITE
  69   };
  70
  71 struct ExtCoreRegister
  72 {
  73   short number;
  74   enum ExtReadWrite rw;
  75   char *name;
  76 };
  77
  78 struct arcExtMap
  79 {
  80   struct ExtAuxRegister *auxRegisters;
  81   struct ExtInstruction *instructions[INST_HASH_SIZE];
  82   struct ExtCoreRegister coreRegisters[NUM_EXT_CORE];
  83   char *condCodes[NUM_EXT_COND];
  84 };
  85
  86 extern int arcExtMap_add(void*, unsigned long);
  87 extern enum ExtReadWrite arcExtMap_coreReadWrite (int);
  88 extern const char *arcExtMap_coreRegName(int);
  89 extern const char *arcExtMap_auxRegName(long);
  90 extern const char *arcExtMap_condCodeName(int);
  91 extern const char *arcExtMap_instName(int, int, int*);
  92
  93 /* Ravi:
  94    warning: implicit declaration of function `build_ARC_extmap'
  95 */
  96 extern void build_ARC_extmap (bfd *);
  97
  98
  99 #define IGNORE_FIRST_OPD 1
 100
 101 #endif /* __arcExtMap_h__ */