1 /* Disassembler structures definitions for the ARC.
2    Copyright (C) 1994-2016 Free Software Foundation, Inc.
3 
4    Contributed by Claudiu Zissulescu (claziss@synopsys.com)
5 
6    This file is part of libopcodes.
7 
8    This library is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3, or (at your option)
11    any later version.
12 
13    It is distributed in the hope that it will be useful, but WITHOUT
14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16    License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with this program; if not, write to the Free Software Foundation,
20    Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
21 
22 #ifndef ARCDIS_H
23 #define ARCDIS_H
24 
25 enum ARC_Debugger_OperandType
26 {
27     ARC_UNDEFINED,
28     ARC_LIMM,
29     ARC_SHIMM,
30     ARC_REGISTER,
31     ARCOMPACT_REGISTER /* Valid only for the
32 			  registers allowed in
33 			  16 bit mode.  */
34 };
35 
36 enum Flow
37 {
38   noflow,
39   direct_jump,
40   direct_call,
41   indirect_jump,
42   indirect_call,
43   invalid_instr
44 };
45 
46 enum NullifyMode
47 {
48   BR_exec_when_no_jump,
49   BR_exec_always,
50   BR_exec_when_jump
51 };
52 
53 enum { allOperandsSize = 256 };
54 
55 struct arcDisState
56 {
57   void *_this;
58   int instructionLen;
59   void (*err)(void*, const char*);
60   const char *(*coreRegName)(void*, int);
61   const char *(*auxRegName)(void*, int);
62   const char *(*condCodeName)(void*, int);
63   const char *(*instName)(void*, int, int, int*);
64 
65   unsigned char* instruction;
66   unsigned index;
67   const char *comm[6]; /* Instr name, cond, NOP, 3 operands.  */
68 
69   union
70   {
71     unsigned int registerNum;
72     unsigned int shortimm;
73     unsigned int longimm;
74   } source_operand;
75   enum ARC_Debugger_OperandType sourceType;
76 
77   int opWidth;
78   int targets[4];
79   /* START ARC LOCAL.  */
80   unsigned int addresses[4];
81   /* END ARC LOCAL.  */
82   /* Set as a side-effect of calling the disassembler.
83      Used only by the debugger.  */
84   enum Flow flow;
85   int register_for_indirect_jump;
86   int ea_reg1, ea_reg2, _offset;
87   int _cond, _opcode;
88   unsigned long words[2];
89   char *commentBuffer;
90   char instrBuffer[40];
91   char operandBuffer[allOperandsSize];
92   char _ea_present;
93   char _addrWriteBack; /* Address writeback.  */
94   char _mem_load;
95   char _load_len;
96   enum NullifyMode nullifyMode;
97   unsigned char commNum;
98   unsigned char isBranch;
99   unsigned char tcnt;
100   unsigned char acnt;
101 };
102 
103 struct arcDisState
104 arcAnalyzeInstr (bfd_vma memaddr, struct disassemble_info *);
105 #endif
106