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darling-gdb/opcodes/nds32-asm.h
Kuan-Lin Chen 40c7a7cb74 NDS32/opcodes: Add audio ISA extension and modify the disassemble implemnt. 
First, add nds32 audio ISA extension including opcodes and registers.
Second, redesign the disassemble implement.
The original disassemble decode instruction opcode using switch-case.
It is hard to synchronize when adding new instructions.
Therefore, the new implement reuses nds32_opcodes to dump the instructions.
2014-09-16 12:28:11 +08:00

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/* NDS32-specific support for 32-bit ELF.
Copyright (C) 2012-2014 Free Software Foundation, Inc.
Contributed by Andes Technology Corporation.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
#ifndef NDS32_ASM_H
#define NDS32_ASM_H
/* Constant values for assembler. */
enum
{
/* Error code for assembling an instruction. */
NASM_OK = 0,
NASM_ERR_UNKNOWN_OP,
NASM_ERR_SYNTAX,
NASM_ERR_OPERAND,
NASM_ERR_OUT_OF_RANGE,
NASM_ERR_REG_REDUCED,
NASM_ERR_JUNK_EOL,
/* Results of parse_operand. */
NASM_R_CONST,
NASM_R_SYMBOL,
NASM_R_ILLEGAL,
/* Flags for open description. */
NASM_OPEN_ARCH_V1 = 0x0,
NASM_OPEN_ARCH_V2 = 0x1,
NASM_OPEN_ARCH_V3 = 0x2,
NASM_OPEN_ARCH_V3M = 0x3,
NASM_OPEN_ARCH_MASK = 0xf,
NASM_OPEN_REDUCED_REG = 0x10,
/* Common attributes. */
NASM_ATTR_ISA_V1 = 0x01,
NASM_ATTR_ISA_V2 = 0x02,
NASM_ATTR_ISA_V3 = 0x04,
NASM_ATTR_ISA_V3M = 0x08,
NASM_ATTR_ISA_ALL = 0x0f,
/* Attributes for instructions. */
NASM_ATTR_MAC = 0x0000100,
NASM_ATTR_DIV = 0x0000200,
NASM_ATTR_FPU = 0x0000400,
NASM_ATTR_FPU_SP_EXT = 0x0000800,
NASM_ATTR_FPU_DP_EXT = 0x0001000,
NASM_ATTR_STR_EXT = 0x0002000,
NASM_ATTR_PERF_EXT = 0x0004000,
NASM_ATTR_PERF2_EXT = 0x0008000,
NASM_ATTR_AUDIO_ISAEXT = 0x0010000,
NASM_ATTR_IFC_EXT = 0x0020000,
NASM_ATTR_EX9_EXT = 0x0040000,
NASM_ATTR_FPU_FMA = 0x0080000,
NASM_ATTR_DXREG = 0x0100000,
NASM_ATTR_BRANCH = 0x0200000,
NASM_ATTR_SATURATION_EXT = 0x0400000,
NASM_ATTR_PCREL = 0x0800000,
NASM_ATTR_GPREL = 0x1000000,
/* Attributes for relocations. */
NASM_ATTR_HI20 = 0x10000000,
NASM_ATTR_LO12 = 0x20000000,
NASM_ATTR_LO20 = 0x40000000,
/* Attributes for registers. */
NASM_ATTR_RDREG = 0x000100
};
enum
{
/* This is a field (operand) of just a separator char. */
SYN_FIELD = 0x100,
/* This operand is used for input or output. (define or use) */
SYN_INPUT = 0x1000,
SYN_OUTPUT = 0x2000,
SYN_LOPT = 0x4000,
SYN_ROPT = 0x8000,
/* Hardware resources. */
HW_GPR = 0,
HW_USR,
HW_DXR,
HW_SR,
HW_FSR,
HW_FDR,
HW_CP, /* Co-processor ID. */
HW_CPR, /* Co-processor registers. */
HW_ABDIM, /* [ab][di]m? flag for LSMWA?. */
HW_ABM, /* [ab]m? flag for LSMWZB. */
HW_DTITON,
HW_DTITOFF,
HW_DPREF_ST,
HW_CCTL_ST0,
HW_CCTL_ST1,
HW_CCTL_ST2,
HW_CCTL_ST3,
HW_CCTL_ST4,
HW_CCTL_ST5,
HW_CCTL_LV,
HW_TLBOP_ST,
HW_STANDBY_ST,
HW_MSYNC_ST,
HW_AEXT_IM_I,
HW_AEXT_IM_M,
HW_AEXT_ACC,
HW_AEXT_ARIDX,
HW_AEXT_ARIDX2,
HW_AEXT_ARIDXI,
_HW_LAST,
/* TODO: Maybe we should add a new type to distinguish address and
const int. Only the former allows symbols and relocations. */
HW_INT,
HW_UINT
};
/* for audio-extension. */
enum
{
N32_AEXT_AMADD = 0,
N32_AEXT_AMSUB,
N32_AEXT_AMULT,
N32_AEXT_AMFAR,
N32_AEXT_AMADDS,
N32_AEXT_AMSUBS,
N32_AEXT_AMULTS,
N32_AEXT_AMNEGS,
N32_AEXT_AADDL,
N32_AEXT_AMTARI,
N32_AEXT_AMAWBS = 0x0c,
N32_AEXT_AMAWTS,
N32_AEXT_AMWBS,
N32_AEXT_AMWTS,
N32_AEXT_AMABBS,
N32_AEXT_AMABTS,
N32_AEXT_AMATBS,
N32_AEXT_AMATTS,
N32_AEXT_AMBBS,
N32_AEXT_AMBTS,
N32_AEXT_AMTBS,
N32_AEXT_AMTTS
};
/* Macro for instruction attribute. */
#define ATTR(attr) NASM_ATTR_ ## attr
#define ATTR_NONE 0
#define ATTR_PCREL (ATTR (PCREL) | ATTR (BRANCH))
#define ATTR_ALL (ATTR (ISA_ALL))
#define ATTR_V2UP (ATTR_ALL & ~(ATTR (ISA_V1)))
#define ATTR_V3MUP (ATTR (ISA_V3) | ATTR (ISA_V3M))
#define ATTR_V3 (ATTR (ISA_V3))
#define ATTR_V3MEX_V1 (ATTR_ALL & ~(ATTR (ISA_V3M)))
#define ATTR_V3MEX_V2 (ATTR_V2UP & ~(ATTR (ISA_V3M)))
/* Lexical element in parsed syntax. */
typedef int lex_t;
/* Common header for hash entries. */
struct nds32_hash_entry
{
const char *name;
};
typedef struct nds32_keyword
{
const char *name;
int value;
uint64_t attr;
} keyword_t;
typedef struct nds32_opcode
{
/* Opcode for the instruction. */
const char *opcode;
/* Human readable string of this instruction. */
const char *instruction;
/* Base value of this instruction. */
uint32_t value;
/* The byte-size of the instruction. */
int isize;
/* Attributes of this instruction. */
uint64_t attr;
/* Implicit define/use. */
uint64_t defuse;
/* Parsed string for assembling. */
lex_t *syntax;
/* Number of variant. */
int variant;
/* Next form of the same mnemonic. */
struct nds32_opcode *next;
/* TODO: Extra constrains and verification.
For example, `mov55 $sp, $sp' is not allowed in v3. */
} opcode_t;
typedef struct nds32_asm_insn
{
/* Assembled instruction bytes. */
uint32_t insn;
/* The opcode structure for this instruction. */
struct nds32_opcode *opcode;
/* The field need special fix-up, used for relocation. */
const struct nds32_field *field;
/* Attributes for relocation. */
uint64_t attr;
/* Application-dependent data, e.g., expression. */
void *info;
/* Input/output registers. */
uint64_t defuse;
} nds32_asm_insn_t;
typedef struct nds32_asm_desc
{
/* The callback provided by assembler user for parse an operand,
e.g., parse integer. */
int (*parse_operand) (struct nds32_asm_desc *,
struct nds32_asm_insn *,
char **, int64_t *);
/* Result of assembling. */
int result;
/* The mach for this assembling. */
int mach;
int flags;
} nds32_asm_desc_t;
/* The field information for an operand. */
typedef struct nds32_field
{
/* Name of the field. */
const char *name;
int bitpos;
int bitsize;
int shift;
int hw_res;
int (*parse) (struct nds32_asm_desc *,
struct nds32_asm_insn *,
char **, int64_t *);
} field_t;
extern void nds32_assemble (nds32_asm_desc_t *, nds32_asm_insn_t *, char *);
extern void nds32_asm_init (nds32_asm_desc_t *, int);
#define OP6(op6) (N32_OP6_ ## op6 << 25)
#define LSMW(sub) (OP6 (LSMW) | N32_LSMW_ ## sub)
#define JREG(sub) (OP6 (JREG) | N32_JREG_ ## sub)
#define JREG_RET (1 << 5)
#define JREG_IFC (1 << 6)
#define BR2(sub) (OP6 (BR2) | (N32_BR2_ ## sub << 16))
#define SIMD(sub) (OP6 (SIMD) | N32_SIMD_ ## sub)
#define ALU1(sub) (OP6 (ALU1) | N32_ALU1_ ## sub)
#define ALU2(sub) (OP6 (ALU2) | N32_ALU2_ ## sub)
#define MISC(sub) (OP6 (MISC) | N32_MISC_ ## sub)
#define MEM(sub) (OP6 (MEM) | N32_MEM_ ## sub)
#define FPU_RA_IMMBI(sub) (OP6 (sub) | __BIT (12))
#define FS1(sub) (OP6 (COP) | N32_FPU_FS1 | (N32_FPU_FS1_ ## sub << 6))
#define FS1_F2OP(sub) (OP6 (COP) | N32_FPU_FS1 | (N32_FPU_FS1_F2OP << 6) \
| (N32_FPU_FS1_F2OP_ ## sub << 10))
#define FS2(sub) (OP6 (COP) | N32_FPU_FS2 | (N32_FPU_FS2_ ## sub << 6))
#define FD1(sub) (OP6 (COP) | N32_FPU_FD1 | (N32_FPU_FD1_ ## sub << 6))
#define FD1_F2OP(sub) (OP6 (COP) | N32_FPU_FD1 | (N32_FPU_FD1_F2OP << 6) \
| (N32_FPU_FD1_F2OP_ ## sub << 10))
#define FD2(sub) (OP6 (COP) | N32_FPU_FD2 | (N32_FPU_FD2_ ## sub << 6))
#define MFCP(sub) (OP6 (COP) | N32_FPU_MFCP | (N32_FPU_MFCP_ ## sub << 6))
#define MFCP_XR(sub) (OP6 (COP) | N32_FPU_MFCP | (N32_FPU_MFCP_XR << 6) \
| (N32_FPU_MFCP_XR_ ## sub << 10))
#define MTCP(sub) (OP6 (COP) | N32_FPU_MTCP | (N32_FPU_MTCP_ ## sub << 6))
#define MTCP_XR(sub) (OP6 (COP) | N32_FPU_MTCP | (N32_FPU_MTCP_XR << 6) \
| (N32_FPU_MTCP_XR_ ## sub << 10))
#define FPU_MEM(sub) (OP6 (COP) | N32_FPU_ ## sub)
#define FPU_MEMBI(sub) (OP6 (COP) | N32_FPU_ ## sub | 0x1 << 7)
#define AUDIO(sub) (OP6 (AEXT) | (N32_AEXT_ ## sub << 20))
#endif
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