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/* v850.h -- Header file for NEC V850 opcode table |
Copyright 1996-2013 Free Software Foundation, Inc. |
Written by J.T. Conklin, Cygnus Support |
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This file is part of GDB, GAS, and the GNU binutils. |
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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. |
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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. |
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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. */ |
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#ifndef V850_H |
#define V850_H |
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/* The opcode table is an array of struct v850_opcode. */ |
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struct v850_opcode |
{ |
/* The opcode name. */ |
const char *name; |
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/* The opcode itself. Those bits which will be filled in with |
operands are zeroes. */ |
unsigned long opcode; |
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/* 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; |
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/* 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]; |
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/* Which (if any) operand is a memory operand. */ |
unsigned int memop; |
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/* 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; |
}; |
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/* 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) |
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#define opt_EXTENSION (arch_separator) |
#define opt_ALIAS (opt_EXTENSION + 1) |
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/* 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. */ |
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/* 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) |
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#define PROCESSOR_MASK (PROCESSOR_ALL) |
#define PROCESSOR_NOT_V850 (PROCESSOR_ALL & (~ PROCESSOR_V850)) /* Any processor except the V850. */ |
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#define PROCESSOR_UNKNOWN ~(PROCESSOR_MASK) |
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/* OPTIONS */ |
#define PROCESSOR_OPTION_EXTENSION (1 << (opt_EXTENSION)) /* Enable extension opcodes. */ |
#define PROCESSOR_OPTION_ALIAS (1 << (opt_ALIAS)) /* Enable alias opcodes. */ |
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#define SET_PROCESSOR_MASK(mask,set) ((mask) = ((mask) & ~PROCESSOR_MASK) | (set)) |
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/* 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; |
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/* The operands table is an array of struct v850_operand. */ |
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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; |
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/* (bits >= 0): How far the operand is left shifted in the instruction. */ |
/* (bits == -1): Bit mask of the bits in the operand. */ |
int shift; |
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/* Insertion function. This is used by the assembler. To insert an |
operand value into an instruction, check this field. |
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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). |
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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, long op, const char ** errmsg); |
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/* Extraction function. This is used by the disassembler. To |
extract this operand type from an instruction, check this field. |
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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). |
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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); |
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/* One bit syntax flags. */ |
int flags; |
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int default_reloc; |
}; |
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/* Elements in the table are retrieved by indexing with values from |
the operands field of the v850_opcodes table. */ |
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extern const struct v850_operand v850_operands[]; |
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/* Values defined for the flags field of a struct v850_operand. */ |
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/* This operand names a general purpose register. */ |
#define V850_OPERAND_REG 0x01 |
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/* This operand is the ep register. */ |
#define V850_OPERAND_EP 0x02 |
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/* This operand names a system register. */ |
#define V850_OPERAND_SRG 0x04 |
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/* Prologue eilogue type instruction, V850E specific. */ |
#define V850E_OPERAND_REG_LIST 0x08 |
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/* This operand names a condition code used in the setf instruction. */ |
#define V850_OPERAND_CC 0x10 |
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#define V850_OPERAND_FLOAT_CC 0x20 |
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/* This operand names a vector purpose register. */ |
#define V850_OPERAND_VREG 0x40 |
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/* 16 bit immediate follows instruction, V850E specific. */ |
#define V850E_IMMEDIATE16 0x80 |
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/* hi16 bit immediate follows instruction, V850E specific. */ |
#define V850E_IMMEDIATE16HI 0x100 |
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/* 23 bit immediate follows instruction, V850E specific. */ |
#define V850E_IMMEDIATE23 0x200 |
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/* 32 bit immediate follows instruction, V850E specific. */ |
#define V850E_IMMEDIATE32 0x400 |
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/* 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 |
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/* This operand takes signed values. */ |
#define V850_OPERAND_SIGNED 0x1000 |
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/* This operand is a displacement. */ |
#define V850_OPERAND_DISP 0x2000 |
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/* This operand is a PC displacement. */ |
#define V850_PCREL 0x4000 |
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/* The register specified must be even number. */ |
#define V850_REG_EVEN 0x8000 |
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/* The register specified must not be r0. */ |
#define V850_NOT_R0 0x20000 |
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/* The register specified must not be 0. */ |
#define V850_NOT_IMM0 0x40000 |
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/* The condition code must not be SA CONDITION. */ |
#define V850_NOT_SA 0x80000 |
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/* The operand has '!' prefix. */ |
#define V850_OPERAND_BANG 0x100000 |
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/* The operand has '%' prefix. */ |
#define V850_OPERAND_PERCENT 0x200000 |
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/* This operand is a cache oparation. */ |
#define V850_OPERAND_CACHEOP 0x400000 |
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/* This operand is a prefetch oparation. */ |
#define V850_OPERAND_PREFOP 0x800000 |
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/* A PC-relative displacement where a positive value indicates a backwards displacement. */ |
#define V850_INVERSE_PCREL 0x1000000 |
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extern int v850_msg_is_out_of_range (const char *); |
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#endif /* V850_H */ |