diff options
Diffstat (limited to 'include/opcode/arc.h')
| -rw-r--r-- | include/opcode/arc.h | 321 |
1 files changed, 0 insertions, 321 deletions
diff --git a/include/opcode/arc.h b/include/opcode/arc.h deleted file mode 100644 index b137840..0000000 --- a/include/opcode/arc.h +++ /dev/null @@ -1,321 +0,0 @@ -/* Opcode table for the ARC. - Copyright 1994, 1995, 1997, 2001 Free Software Foundation, Inc. - Contributed by Doug Evans (dje@cygnus.com). - - This file is part of GAS, the GNU Assembler, GDB, the GNU debugger, and - the GNU Binutils. - - GAS/GDB 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 2, or (at your option) - any later version. - - GAS/GDB 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 GAS or GDB; see the file COPYING. If not, write to - the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - - -/* List of the various cpu types. - The tables currently use bit masks to say whether the instruction or - whatever is supported by a particular cpu. This lets us have one entry - apply to several cpus. - - The `base' cpu must be 0. The cpu type is treated independently of - endianness. The complete `mach' number includes endianness. - These values are internal to opcodes/bfd/binutils/gas. */ -#define ARC_MACH_5 0 -#define ARC_MACH_6 1 -#define ARC_MACH_7 2 -#define ARC_MACH_8 4 - -/* Additional cpu values can be inserted here and ARC_MACH_BIG moved down. */ -#define ARC_MACH_BIG 16 - -/* Mask of number of bits necessary to record cpu type. */ -#define ARC_MACH_CPU_MASK (ARC_MACH_BIG - 1) - -/* Mask of number of bits necessary to record cpu type + endianness. */ -#define ARC_MACH_MASK ((ARC_MACH_BIG << 1) - 1) - -/* Type to denote an ARC instruction (at least a 32 bit unsigned int). */ - -typedef unsigned int arc_insn; - -struct arc_opcode { - char *syntax; /* syntax of insn */ - unsigned long mask, value; /* recognize insn if (op&mask) == value */ - int flags; /* various flag bits */ - -/* Values for `flags'. */ - -/* Return CPU number, given flag bits. */ -#define ARC_OPCODE_CPU(bits) ((bits) & ARC_MACH_CPU_MASK) - -/* Return MACH number, given flag bits. */ -#define ARC_OPCODE_MACH(bits) ((bits) & ARC_MACH_MASK) - -/* First opcode flag bit available after machine mask. */ -#define ARC_OPCODE_FLAG_START (ARC_MACH_MASK + 1) - -/* This insn is a conditional branch. */ -#define ARC_OPCODE_COND_BRANCH (ARC_OPCODE_FLAG_START) -#define SYNTAX_3OP (ARC_OPCODE_COND_BRANCH << 1) -#define SYNTAX_LENGTH (SYNTAX_3OP ) -#define SYNTAX_2OP (SYNTAX_3OP << 1) -#define OP1_MUST_BE_IMM (SYNTAX_2OP << 1) -#define OP1_IMM_IMPLIED (OP1_MUST_BE_IMM << 1) -#define SYNTAX_VALID (OP1_IMM_IMPLIED << 1) - -#define I(x) (((x) & 31) << 27) -#define A(x) (((x) & ARC_MASK_REG) << ARC_SHIFT_REGA) -#define B(x) (((x) & ARC_MASK_REG) << ARC_SHIFT_REGB) -#define C(x) (((x) & ARC_MASK_REG) << ARC_SHIFT_REGC) -#define R(x,b,m) (((x) & (m)) << (b)) /* value X, mask M, at bit B */ - -/* These values are used to optimize assembly and disassembly. Each insn - is on a list of related insns (same first letter for assembly, same - insn code for disassembly). */ - - struct arc_opcode *next_asm; /* Next instr to try during assembly. */ - struct arc_opcode *next_dis; /* Next instr to try during disassembly. */ - -/* Macros to create the hash values for the lists. */ -#define ARC_HASH_OPCODE(string) \ - ((string)[0] >= 'a' && (string)[0] <= 'z' ? (string)[0] - 'a' : 26) -#define ARC_HASH_ICODE(insn) \ - ((unsigned int) (insn) >> 27) - - /* Macros to access `next_asm', `next_dis' so users needn't care about the - underlying mechanism. */ -#define ARC_OPCODE_NEXT_ASM(op) ((op)->next_asm) -#define ARC_OPCODE_NEXT_DIS(op) ((op)->next_dis) -}; - -/* this is an "insert at front" linked list per Metaware spec - that new definitions override older ones. */ -struct arc_opcode *arc_ext_opcodes; - -struct arc_operand_value { - char *name; /* eg: "eq" */ - short value; /* eg: 1 */ - unsigned char type; /* index into `arc_operands' */ - unsigned char flags; /* various flag bits */ - -/* Values for `flags'. */ - -/* Return CPU number, given flag bits. */ -#define ARC_OPVAL_CPU(bits) ((bits) & ARC_MACH_CPU_MASK) -/* Return MACH number, given flag bits. */ -#define ARC_OPVAL_MACH(bits) ((bits) & ARC_MACH_MASK) -}; - -struct arc_ext_operand_value { - struct arc_ext_operand_value *next; - struct arc_operand_value operand; -} *arc_ext_operands; - -struct arc_operand { -/* One of the insn format chars. */ - unsigned char fmt; - -/* The number of bits in the operand (may be unused for a modifier). */ - unsigned char bits; - -/* How far the operand is left shifted in the instruction, or - the modifier's flag bit (may be unused for a modifier. */ - unsigned char shift; - -/* Various flag bits. */ - int flags; - -/* Values for `flags'. */ - -/* This operand is a suffix to the opcode. */ -#define ARC_OPERAND_SUFFIX 1 - -/* This operand is a relative branch displacement. The disassembler - prints these symbolically if possible. */ -#define ARC_OPERAND_RELATIVE_BRANCH 2 - -/* This operand is an absolute branch address. The disassembler - prints these symbolically if possible. */ -#define ARC_OPERAND_ABSOLUTE_BRANCH 4 - -/* This operand is an address. The disassembler - prints these symbolically if possible. */ -#define ARC_OPERAND_ADDRESS 8 - -/* This operand is a long immediate value. */ -#define ARC_OPERAND_LIMM 0x10 - -/* This operand takes signed values. */ -#define ARC_OPERAND_SIGNED 0x20 - -/* This operand takes signed values, but also accepts a full positive - range of values. That is, if bits is 16, it takes any value from - -0x8000 to 0xffff. */ -#define ARC_OPERAND_SIGNOPT 0x40 - -/* This operand should be regarded as a negative number for the - purposes of overflow checking (i.e., the normal most negative - number is disallowed and one more than the normal most positive - number is allowed). This flag will only be set for a signed - operand. */ -#define ARC_OPERAND_NEGATIVE 0x80 - -/* This operand doesn't really exist. The program uses these operands - in special ways. */ -#define ARC_OPERAND_FAKE 0x100 - -/* separate flags operand for j and jl instructions */ -#define ARC_OPERAND_JUMPFLAGS 0x200 - -/* allow warnings and errors to be issued after call to insert_xxxxxx */ -#define ARC_OPERAND_WARN 0x400 -#define ARC_OPERAND_ERROR 0x800 - -/* this is a load operand */ -#define ARC_OPERAND_LOAD 0x8000 - -/* this is a store operand */ -#define ARC_OPERAND_STORE 0x10000 - -/* Modifier values. */ -/* A dot is required before a suffix. Eg: .le */ -#define ARC_MOD_DOT 0x1000 - -/* A normal register is allowed (not used, but here for completeness). */ -#define ARC_MOD_REG 0x2000 - -/* An auxiliary register name is expected. */ -#define ARC_MOD_AUXREG 0x4000 - -/* Sum of all ARC_MOD_XXX bits. */ -#define ARC_MOD_BITS 0x7000 - -/* Non-zero if the operand type is really a modifier. */ -#define ARC_MOD_P(X) ((X) & ARC_MOD_BITS) - -/* enforce read/write only register restrictions */ -#define ARC_REGISTER_READONLY 0x01 -#define ARC_REGISTER_WRITEONLY 0x02 -#define ARC_REGISTER_NOSHORT_CUT 0x04 - -/* 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 |= (p & ((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. - - REG is non-NULL when inserting a register value. */ - - arc_insn (*insert) PARAMS ((arc_insn insn, - const struct arc_operand *operand, int mods, - const struct arc_operand_value *reg, long value, - 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 & ARC_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. - - INSN is a pointer to an array of two `arc_insn's. The first element is - the insn, the second is the limm if present. - - Operands that have a printable form like registers and suffixes have - their struct arc_operand_value pointer stored in OPVAL. */ - - long (*extract) PARAMS ((arc_insn *insn, - const struct arc_operand *operand, - int mods, const struct arc_operand_value **opval, - int *invalid)); -}; - -/* Bits that say what version of cpu we have. These should be passed to - arc_init_opcode_tables. At present, all there is is the cpu type. */ - -/* CPU number, given value passed to `arc_init_opcode_tables'. */ -#define ARC_HAVE_CPU(bits) ((bits) & ARC_MACH_CPU_MASK) -/* MACH number, given value passed to `arc_init_opcode_tables'. */ -#define ARC_HAVE_MACH(bits) ((bits) & ARC_MACH_MASK) - -/* Special register values: */ -#define ARC_REG_SHIMM_UPDATE 61 -#define ARC_REG_SHIMM 63 -#define ARC_REG_LIMM 62 - -/* Non-zero if REG is a constant marker. */ -#define ARC_REG_CONSTANT_P(REG) ((REG) >= 61) - -/* Positions and masks of various fields: */ -#define ARC_SHIFT_REGA 21 -#define ARC_SHIFT_REGB 15 -#define ARC_SHIFT_REGC 9 -#define ARC_MASK_REG 63 - -/* Delay slot types. */ -#define ARC_DELAY_NONE 0 /* no delay slot */ -#define ARC_DELAY_NORMAL 1 /* delay slot in both cases */ -#define ARC_DELAY_JUMP 2 /* delay slot only if branch taken */ - -/* Non-zero if X will fit in a signed 9 bit field. */ -#define ARC_SHIMM_CONST_P(x) ((long) (x) >= -256 && (long) (x) <= 255) - -extern const struct arc_operand arc_operands[]; -extern const int arc_operand_count; -extern struct arc_opcode arc_opcodes[]; -extern const int arc_opcodes_count; -extern const struct arc_operand_value arc_suffixes[]; -extern const int arc_suffixes_count; -extern const struct arc_operand_value arc_reg_names[]; -extern const int arc_reg_names_count; -extern unsigned char arc_operand_map[]; - -/* Utility fns in arc-opc.c. */ -int arc_get_opcode_mach PARAMS ((int, int)); - -/* `arc_opcode_init_tables' must be called before `arc_xxx_supported'. */ -void arc_opcode_init_tables PARAMS ((int)); -void arc_opcode_init_insert PARAMS ((void)); -void arc_opcode_init_extract PARAMS ((void)); -const struct arc_opcode *arc_opcode_lookup_asm PARAMS ((const char *)); -const struct arc_opcode *arc_opcode_lookup_dis PARAMS ((unsigned int)); -int arc_opcode_limm_p PARAMS ((long *)); -const struct arc_operand_value *arc_opcode_lookup_suffix - PARAMS ((const struct arc_operand *type, int value)); -int arc_opcode_supported PARAMS ((const struct arc_opcode *)); -int arc_opval_supported PARAMS ((const struct arc_operand_value *)); -int arc_limm_fixup_adjust PARAMS ((arc_insn)); -int arc_insn_is_j PARAMS ((arc_insn)); -int arc_insn_not_jl PARAMS ((arc_insn)); -int arc_operand_type PARAMS ((int)); -struct arc_operand_value *get_ext_suffix PARAMS ((char *)); -int arc_get_noshortcut_flag PARAMS ((void)); |