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Diffstat (limited to 'src')
| -rw-r--r-- | src/alpha.h | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/src/alpha.h b/src/alpha.h deleted file mode 100644 index 22c85a1..0000000 --- a/src/alpha.h +++ /dev/null @@ -1,237 +0,0 @@ -/* alpha.h -- Header file for Alpha opcode table - Copyright 1996, 1999, 2001, 2003 Free Software Foundation, Inc. - Contributed by Richard Henderson <rth@tamu.edu>, - patterned after the PPC opcode table written by Ian Lance Taylor. - -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 -1, 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 COPYING. If not, write to the Free -Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifndef OPCODE_ALPHA_H -#define OPCODE_ALPHA_H - -/* The opcode table is an array of struct alpha_opcode. */ - -struct alpha_opcode -{ - /* The opcode name. */ - const char *name; - - /* The opcode itself. Those bits which will be filled in with - operands are zeroes. */ - unsigned 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 mask; - - /* One bit flags for the opcode. These are primarily used to - indicate specific processors and environments support the - instructions. The defined values are listed below. */ - unsigned flags; - - /* 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[4]; -}; - -/* 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 alpha_opcode alpha_opcodes[]; -extern const unsigned alpha_num_opcodes; - -/* Values defined for the flags field of a struct alpha_opcode. */ - -/* CPU Availability */ -#define AXP_OPCODE_BASE 0x0001 /* Base architecture -- all cpus. */ -#define AXP_OPCODE_EV4 0x0002 /* EV4 specific PALcode insns. */ -#define AXP_OPCODE_EV5 0x0004 /* EV5 specific PALcode insns. */ -#define AXP_OPCODE_EV6 0x0008 /* EV6 specific PALcode insns. */ -#define AXP_OPCODE_BWX 0x0100 /* Byte/word extension (amask bit 0). */ -#define AXP_OPCODE_CIX 0x0200 /* "Count" extension (amask bit 1). */ -#define AXP_OPCODE_MAX 0x0400 /* Multimedia extension (amask bit 8). */ - -#define AXP_OPCODE_NOPAL (~(AXP_OPCODE_EV4|AXP_OPCODE_EV5|AXP_OPCODE_EV6)) - -/* A macro to extract the major opcode from an instruction. */ -#define AXP_OP(i) (((i) >> 26) & 0x3F) - -/* The total number of major opcodes. */ -#define AXP_NOPS 0x40 - - -/* The operands table is an array of struct alpha_operand. */ - -struct alpha_operand -{ - /* The number of bits in the operand. */ - unsigned int bits : 5; - - /* How far the operand is left shifted in the instruction. */ - unsigned int shift : 5; - - /* The default relocation type for this operand. */ - signed int default_reloc : 16; - - /* One bit syntax flags. */ - unsigned int flags : 16; - - /* 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 (*insert) (unsigned instruction, int 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 = ((i) >> o->shift) & ((1 << o->bits) - 1); - if ((o->flags & AXP_OPERAND_SIGNED) != 0 - && (op & (1 << (o->bits - 1))) != 0) - op -= 1 << 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. */ - int (*extract) (unsigned instruction, int *invalid); -}; - -/* Elements in the table are retrieved by indexing with values from - the operands field of the alpha_opcodes table. */ - -extern const struct alpha_operand alpha_operands[]; -extern const unsigned alpha_num_operands; - -/* Values defined for the flags field of a struct alpha_operand. */ - -/* Mask for selecting the type for typecheck purposes */ -#define AXP_OPERAND_TYPECHECK_MASK \ - (AXP_OPERAND_PARENS | AXP_OPERAND_COMMA | AXP_OPERAND_IR | \ - AXP_OPERAND_FPR | AXP_OPERAND_RELATIVE | AXP_OPERAND_SIGNED | \ - AXP_OPERAND_UNSIGNED) - -/* This operand does not actually exist in the assembler input. This - is used to support extended mnemonics, for which two operands fields - are identical. The assembler should call the insert function with - any op value. The disassembler should call the extract function, - ignore the return value, and check the value placed in the invalid - argument. */ -#define AXP_OPERAND_FAKE 01 - -/* The operand should be wrapped in parentheses rather than separated - from the previous by a comma. This is used for the load and store - instructions which want their operands to look like "Ra,disp(Rb)". */ -#define AXP_OPERAND_PARENS 02 - -/* Used in combination with PARENS, this supresses the supression of - the comma. This is used for "jmp Ra,(Rb),hint". */ -#define AXP_OPERAND_COMMA 04 - -/* This operand names an integer register. */ -#define AXP_OPERAND_IR 010 - -/* This operand names a floating point register. */ -#define AXP_OPERAND_FPR 020 - -/* This operand is a relative branch displacement. The disassembler - prints these symbolically if possible. */ -#define AXP_OPERAND_RELATIVE 040 - -/* This operand takes signed values. */ -#define AXP_OPERAND_SIGNED 0100 - -/* This operand takes unsigned values. This exists primarily so that - a flags value of 0 can be treated as end-of-arguments. */ -#define AXP_OPERAND_UNSIGNED 0200 - -/* Supress overflow detection on this field. This is used for hints. */ -#define AXP_OPERAND_NOOVERFLOW 0400 - -/* Mask for optional argument default value. */ -#define AXP_OPERAND_OPTIONAL_MASK 07000 - -/* This operand defaults to zero. This is used for jump hints. */ -#define AXP_OPERAND_DEFAULT_ZERO 01000 - -/* This operand should default to the first (real) operand and is used - in conjunction with AXP_OPERAND_OPTIONAL. This allows - "and $0,3,$0" to be written as "and $0,3", etc. I don't like - it, but it's what DEC does. */ -#define AXP_OPERAND_DEFAULT_FIRST 02000 - -/* Similarly, this operand should default to the second (real) operand. - This allows "negl $0" instead of "negl $0,$0". */ -#define AXP_OPERAND_DEFAULT_SECOND 04000 - - -/* Register common names */ - -#define AXP_REG_V0 0 -#define AXP_REG_T0 1 -#define AXP_REG_T1 2 -#define AXP_REG_T2 3 -#define AXP_REG_T3 4 -#define AXP_REG_T4 5 -#define AXP_REG_T5 6 -#define AXP_REG_T6 7 -#define AXP_REG_T7 8 -#define AXP_REG_S0 9 -#define AXP_REG_S1 10 -#define AXP_REG_S2 11 -#define AXP_REG_S3 12 -#define AXP_REG_S4 13 -#define AXP_REG_S5 14 -#define AXP_REG_FP 15 -#define AXP_REG_A0 16 -#define AXP_REG_A1 17 -#define AXP_REG_A2 18 -#define AXP_REG_A3 19 -#define AXP_REG_A4 20 -#define AXP_REG_A5 21 -#define AXP_REG_T8 22 -#define AXP_REG_T9 23 -#define AXP_REG_T10 24 -#define AXP_REG_T11 25 -#define AXP_REG_RA 26 -#define AXP_REG_PV 27 -#define AXP_REG_T12 27 -#define AXP_REG_AT 28 -#define AXP_REG_GP 29 -#define AXP_REG_SP 30 -#define AXP_REG_ZERO 31 - -#endif /* OPCODE_ALPHA_H */ |