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- /* v850.h -- Header file for NEC V850 opcode table
- Copyright (C) 1996-2022 Free Software Foundation, Inc.
- Written by J.T. Conklin, Cygnus Support
- This file is part of GDB, GAS, and the GNU binutils.
- GDB, GAS, and the GNU binutils are free software; you can redistribute
- them and/or modify them under the terms of the GNU General Public
- License as published by the Free Software Foundation; either version 3,
- or (at your option) any later version.
- GDB, GAS, and the GNU binutils are distributed in the hope that they
- 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 file; see the file COPYING3. If not, write to the Free
- Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- #ifndef V850_H
- #define V850_H
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* The opcode table is an array of struct v850_opcode. */
- struct v850_opcode
- {
- /* The opcode name. */
- const char *name;
- /* The opcode itself. Those bits which will be filled in with
- operands are zeroes. */
- unsigned long opcode;
- /* The opcode mask. This is used by the disassembler. This is a
- mask containing ones indicating those bits which must match the
- opcode field, and zeroes indicating those bits which need not
- match (and are presumably filled in by operands). */
- unsigned long mask;
- /* An array of operand codes. Each code is an index into the
- operand table. They appear in the order which the operands must
- appear in assembly code, and are terminated by a zero. */
- unsigned char operands[8];
- /* Which (if any) operand is a memory operand. */
- unsigned int memop;
- /* Target processor(s). A bit field of processors which support
- this instruction. Note a bit field is used as some instructions
- are available on multiple, different processor types, whereas
- other instructions are only available on one specific type. */
- unsigned int processors;
- };
- /* Values for architecture number. */
- #define arch_V850 0
- #define arch_V850E (arch_V850 + 1)
- #define arch_V850E1 (arch_V850E + 1)
- #define arch_V850E2 (arch_V850E1 + 1)
- #define arch_V850E2V3 (arch_V850E2 + 1)
- #define arch_V850E3V5 (arch_V850E2V3 + 1)
- #define arch_separator (arch_V850E3V5 + 1)
- #define opt_EXTENSION (arch_separator)
- #define opt_ALIAS (opt_EXTENSION + 1)
- /* Values for the processors field in the v850_opcode structure. */
- #define PROCESSOR_V850 (1 << (arch_V850)) /* Just the V850. */
- #define PROCESSOR_V850E (1 << (arch_V850E)) /* Just the V850E. */
- #define PROCESSOR_V850E1 (1 << (arch_V850E1)) /* Just the V850E1. */
- #define PROCESSOR_V850E2 (1 << (arch_V850E2)) /* Just the V850E2. */
- #define PROCESSOR_V850E2V3 (1 << (arch_V850E2V3)) /* Just the V850E2V3. */
- #define PROCESSOR_V850E3V5 (1 << (arch_V850E3V5)) /* Just the V850E3V5. */
- /* UPPERS */
- #define PROCESSOR_V850E3V5_UP (PROCESSOR_V850E3V5)
- #define PROCESSOR_V850E2V3_UP (PROCESSOR_V850E2V3 | PROCESSOR_V850E3V5_UP)
- #define PROCESSOR_V850E2_UP (PROCESSOR_V850E2 | PROCESSOR_V850E2V3_UP)
- #define PROCESSOR_V850E_UP (PROCESSOR_V850E | PROCESSOR_V850E1 | PROCESSOR_V850E2_UP)
- #define PROCESSOR_ALL (PROCESSOR_V850 | PROCESSOR_V850E_UP)
- #define PROCESSOR_MASK (PROCESSOR_ALL)
- #define PROCESSOR_NOT_V850 (PROCESSOR_ALL & (~ PROCESSOR_V850)) /* Any processor except the V850. */
- #define PROCESSOR_UNKNOWN ~(PROCESSOR_MASK)
- /* OPTIONS */
- #define PROCESSOR_OPTION_EXTENSION (1 << (opt_EXTENSION)) /* Enable extension opcodes. */
- #define PROCESSOR_OPTION_ALIAS (1 << (opt_ALIAS)) /* Enable alias opcodes. */
- #define SET_PROCESSOR_MASK(mask,set) ((mask) = ((mask) & ~PROCESSOR_MASK) | (set))
- /* The table itself is sorted by major opcode number, and is otherwise
- in the order in which the disassembler should consider
- instructions. */
- extern const struct v850_opcode v850_opcodes[];
- extern const int v850_num_opcodes;
- /* The operands table is an array of struct v850_operand. */
- struct v850_operand
- {
- /* The number of bits in the operand. */
- /* If this value is -1 then the operand's bits are in a discontinous
- distribution in the instruction. */
- int bits;
- /* (bits >= 0): How far the operand is left shifted in the instruction. */
- /* (bits == -1): Bit mask of the bits in the operand. */
- int shift;
- /* Insertion function. This is used by the assembler. To insert an
- operand value into an instruction, check this field.
- If it is NULL, execute
- i |= (op & ((1 << o->bits) - 1)) << o->shift;
- (i is the instruction which we are filling in, o is a pointer to
- this structure, and op is the opcode value; this assumes twos
- complement arithmetic).
- If this field is not NULL, then simply call it with the
- instruction and the operand value. It will return the new value
- of the instruction. If the ERRMSG argument is not NULL, then if
- the operand value is illegal, *ERRMSG will be set to a warning
- string (the operand will be inserted in any case). If the
- operand value is legal, *ERRMSG will be unchanged (most operands
- can accept any value). */
- unsigned long (* insert)
- (unsigned long instruction, unsigned long op, const char ** errmsg);
- /* Extraction function. This is used by the disassembler. To
- extract this operand type from an instruction, check this field.
- If it is NULL, compute
- op = o->bits == -1 ? ((i) & o->shift) : ((i) >> o->shift) & ((1 << o->bits) - 1);
- if (o->flags & V850_OPERAND_SIGNED)
- op = (op << (32 - o->bits)) >> (32 - o->bits);
- (i is the instruction, o is a pointer to this structure, and op
- is the result; this assumes twos complement arithmetic).
- If this field is not NULL, then simply call it with the
- instruction value. It will return the value of the operand. If
- the INVALID argument is not NULL, *INVALID will be set to
- non-zero if this operand type can not actually be extracted from
- this operand (i.e., the instruction does not match). If the
- operand is valid, *INVALID will not be changed. */
- unsigned long (* extract) (unsigned long instruction, int * invalid);
- /* One bit syntax flags. */
- int flags;
- int default_reloc;
- };
- /* Elements in the table are retrieved by indexing with values from
- the operands field of the v850_opcodes table. */
- extern const struct v850_operand v850_operands[];
- /* Values defined for the flags field of a struct v850_operand. */
- /* This operand names a general purpose register. */
- #define V850_OPERAND_REG 0x01
- /* This operand is the ep register. */
- #define V850_OPERAND_EP 0x02
- /* This operand names a system register. */
- #define V850_OPERAND_SRG 0x04
- /* Prologue eilogue type instruction, V850E specific. */
- #define V850E_OPERAND_REG_LIST 0x08
- /* This operand names a condition code used in the setf instruction. */
- #define V850_OPERAND_CC 0x10
- #define V850_OPERAND_FLOAT_CC 0x20
- /* This operand names a vector purpose register. */
- #define V850_OPERAND_VREG 0x40
- /* 16 bit immediate follows instruction, V850E specific. */
- #define V850E_IMMEDIATE16 0x80
- /* hi16 bit immediate follows instruction, V850E specific. */
- #define V850E_IMMEDIATE16HI 0x100
- /* 23 bit immediate follows instruction, V850E specific. */
- #define V850E_IMMEDIATE23 0x200
- /* 32 bit immediate follows instruction, V850E specific. */
- #define V850E_IMMEDIATE32 0x400
- /* This is a relaxable operand. Only used for D9->D22 branch relaxing
- right now. We may need others in the future (or maybe handle them like
- promoted operands on the mn10300?). */
- #define V850_OPERAND_RELAX 0x800
- /* This operand takes signed values. */
- #define V850_OPERAND_SIGNED 0x1000
- /* This operand is a displacement. */
- #define V850_OPERAND_DISP 0x2000
- /* This operand is a PC displacement. */
- #define V850_PCREL 0x4000
- /* The register specified must be even number. */
- #define V850_REG_EVEN 0x8000
- /* The register specified must not be r0. */
- #define V850_NOT_R0 0x20000
- /* The register specified must not be 0. */
- #define V850_NOT_IMM0 0x40000
- /* The condition code must not be SA CONDITION. */
- #define V850_NOT_SA 0x80000
- /* The operand has '!' prefix. */
- #define V850_OPERAND_BANG 0x100000
- /* The operand has '%' prefix. */
- #define V850_OPERAND_PERCENT 0x200000
- /* This operand is a cache operation. */
- #define V850_OPERAND_CACHEOP 0x400000
- /* This operand is a prefetch operation. */
- #define V850_OPERAND_PREFOP 0x800000
- /* A PC-relative displacement where a positive value indicates a backwards displacement. */
- #define V850_INVERSE_PCREL 0x1000000
- extern int v850_msg_is_out_of_range (const char *);
- #ifdef __cplusplus
- }
- #endif
- #endif /* V850_H */
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