1 /* ARC target-dependent stuff. Extension data structures.
2 Copyright (C) 1995-2016 Free Software Foundation, Inc.
4 This file is part of libopcodes.
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)
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.
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. */
21 /*This header file defines a table of extensions to the ARC processor
22 architecture. These extensions are read from the '.arcextmap' or
23 '.gnu.linkonce.arcextmap.<type>.<N>' sections in the ELF file which
24 is identified by the bfd parameter to the build_ARC_extmap function.
26 These extensions may include:
32 Once the table has been constructed, accessor functions may be used
33 to retrieve information from it.
35 The build_ARC_extmap constructor function build_ARC_extmap may be
36 called as many times as required; it will re-initialize the table
39 #ifndef ARC_EXTENSIONS_H
40 #define ARC_EXTENSIONS_H
42 #include "opcode/arc.h"
44 #define IGNORE_FIRST_OPD 1
46 /* Define this if we do not want to encode instructions based on the
47 ARCompact Programmer's Reference. */
50 /* This defines the kinds of extensions which may be read from the
51 ections in the executable files. */
55 EXT_CORE_REGISTER
= 1,
58 EXT_INSTRUCTION32
= 4,
59 EXT_AC_INSTRUCTION
= 4,
60 EXT_REMOVE_CORE_REG
= 5,
61 EXT_LONG_CORE_REGISTER
= 6,
62 EXT_AUX_REGISTER_EXTENDED
= 7,
63 EXT_INSTRUCTION32_EXTENDED
= 8,
64 EXT_CORE_REGISTER_CLASS
= 9
75 /* Macro used when generating the patterns for an extension
77 #define INSERT_XOP(OP, NAME, CODE, MASK, CPU, ARG, FLG) \
80 (OP)->opcode = CODE; \
83 (OP)->class = ARITH; \
84 (OP)->subclass = NONE; \
85 memcpy ((OP)->operands, (ARG), MAX_INSN_ARGS); \
86 memcpy ((OP)->flags, (FLG), MAX_INSN_FLGS); \
90 /* Typedef to hold the extension instruction definition. */
91 typedef struct ExtInstruction
99 /* Minor(sub) opcode. */
102 /* Flags, holds the syntax class and modifiers. */
105 /* Syntax class. Use by assembler. */
106 unsigned char syntax
;
108 /* Syntax class modifier. Used by assembler. */
109 unsigned char modsyn
;
111 /* Suffix class. Used by assembler. */
112 unsigned char suffix
;
114 /* Pointer to the next extension instruction. */
115 struct ExtInstruction
* next
;
118 /* Constructor function. */
119 extern void build_ARC_extmap (bfd
*);
121 /* Accessor functions. */
122 extern enum ExtReadWrite
arcExtMap_coreReadWrite (int);
123 extern const char * arcExtMap_coreRegName (int);
124 extern const char * arcExtMap_auxRegName (long);
125 extern const char * arcExtMap_condCodeName (int);
126 extern const extInstruction_t
*arcExtMap_insn (int, int);
127 extern struct arc_opcode
*arcExtMap_genOpcode (const extInstruction_t
*,
129 const char **errmsg
);
131 /* Dump function (for debugging). */
132 extern void dump_ARC_extmap (void);
134 #endif /* ARC_EXTENSIONS_H */