1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2013 Free Software Foundation, Inc.
3 Contributed by Andes Technology Corporation.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
26 /* Constant values for assembler. */
29 /* Error code for assembling an instruction. */
34 NASM_ERR_OUT_OF_RANGE
,
38 /* Results of parse_operand. */
43 /* Flags for open description. */
44 NASM_OPEN_ARCH_V1
= 0x0,
45 NASM_OPEN_ARCH_V2
= 0x1,
46 NASM_OPEN_ARCH_V3
= 0x2,
47 NASM_OPEN_ARCH_V3M
= 0x3,
48 NASM_OPEN_ARCH_MASK
= 0xf,
49 NASM_OPEN_REDUCED_REG
= 0x10,
51 /* Common attributes. */
52 NASM_ATTR_ISA_V1
= 0x01,
53 NASM_ATTR_ISA_V2
= 0x02,
54 NASM_ATTR_ISA_V3
= 0x04,
55 NASM_ATTR_ISA_V3M
= 0x08,
56 NASM_ATTR_ISA_ALL
= 0x0f,
58 /* Attributes for instructions. */
59 NASM_ATTR_MAC
= 0x0000100,
60 NASM_ATTR_DIV
= 0x0000200,
61 NASM_ATTR_FPU
= 0x0000400,
62 NASM_ATTR_FPU_SP_EXT
= 0x0000800,
63 NASM_ATTR_FPU_DP_EXT
= 0x0001000,
64 NASM_ATTR_STR_EXT
= 0x0002000,
65 NASM_ATTR_PERF_EXT
= 0x0004000,
66 NASM_ATTR_PERF2_EXT
= 0x0008000,
67 NASM_ATTR_AUDIO_ISAEXT
= 0x0010000,
68 NASM_ATTR_IFC_EXT
= 0x0020000,
69 NASM_ATTR_EX9_EXT
= 0x0040000,
70 NASM_ATTR_FPU_FMA
= 0x0080000,
71 NASM_ATTR_DXREG
= 0x0100000,
72 NASM_ATTR_BRANCH
= 0x0200000,
73 NASM_ATTR_RELAXABLE
= 0x0400000,
74 NASM_ATTR_PCREL
= 0x0800000,
75 NASM_ATTR_GPREL
= 0x1000000,
77 /* Attributes for relocations. */
78 NASM_ATTR_HI20
= 0x10000000,
79 NASM_ATTR_LO12
= 0x20000000,
80 NASM_ATTR_LO20
= 0x40000000,
82 /* Attributes for registers. */
83 NASM_ATTR_RDREG
= 0x000100
86 /* Macro for instruction attribute. */
87 #define ATTR(attr) NASM_ATTR_ ## attr
89 #define ATTR_PCREL (ATTR (PCREL) | ATTR (BRANCH))
91 #define ATTR_ALL (ATTR (ISA_ALL))
92 #define ATTR_V2UP (ATTR_ALL & ~(ATTR (ISA_V1)))
93 #define ATTR_V3MUP (ATTR (ISA_V3) | ATTR (ISA_V3M))
94 #define ATTR_V3 (ATTR (ISA_V3))
95 #define ATTR_V3MEX_V1 (ATTR_ALL & ~(ATTR (ISA_V3M)))
96 #define ATTR_V3MEX_V2 (ATTR_V2UP & ~(ATTR (ISA_V3M)))
98 /* Lexical element in parsed syntax. */
101 /* Common header for hash entries. */
102 struct nds32_hash_entry
107 typedef struct nds32_keyword
114 typedef struct nds32_opcode
116 /* Opcode for the instruction. */
118 /* Human readable string of this instruction. */
119 const char *instruction
;
120 /* Base value of this instruction. */
122 /* The byte-size of the instruction. */
124 /* Attributes of this instruction. */
126 /* Implicit define/use. */
128 /* Parsed string for assembling. */
130 /* Number of variant. */
132 /* Next form of the same mnemonic. */
133 struct nds32_opcode
*next
;
134 /* TODO: Extra constrains and verification.
135 For example, `mov55 $sp, $sp' is not allowed in v3. */
138 typedef struct nds32_asm_insn
140 /* Assembled instruction bytes. */
142 /* The opcode structure for this instruction. */
143 struct nds32_opcode
*opcode
;
144 /* The field need special fix-up, used for relocation. */
145 const struct nds32_field
*field
;
146 /* Attributes for relocation. */
148 /* Application-dependent data, e.g., expression. */
150 /* Input/output registers. */
154 typedef struct nds32_asm_desc
156 /* The callback provided by assembler user for parse an operand,
157 e.g., parse integer. */
158 int (*parse_operand
) (struct nds32_asm_desc
*,
159 struct nds32_asm_insn
*,
162 /* Result of assembling. */
165 /* The mach for this assembling. */
171 /* The field information for an operand. */
172 typedef struct nds32_field
174 /* Name of the field. */
182 int (*parse
) (struct nds32_asm_desc
*,
183 struct nds32_asm_insn
*,
187 extern void nds32_assemble (nds32_asm_desc_t
*, nds32_asm_insn_t
*, char *);
188 extern void nds32_asm_init (nds32_asm_desc_t
*, int);
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