| /* 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 */ |
