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/* AArch64 assembler/disassembler support.
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Copyright 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
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Contributed by ARM Ltd.
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This file is part of GNU Binutils.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the license, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING3. If not,
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see <http://www.gnu.org/licenses/>. */
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#ifndef OPCODE_AARCH64_H
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#define OPCODE_AARCH64_H
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#include "bfd_stdint.h"
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/* The offset for pc-relative addressing is currently defined to be 0. */
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#define AARCH64_PCREL_OFFSET 0
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typedef uint32_t aarch64_insn;
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/* The following bitmasks control CPU features. */
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#define AARCH64_FEATURE_V8 0x00000001 /* All processors. */
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#define AARCH64_FEATURE_CRYPTO 0x00010000 /* Crypto instructions. */
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#define AARCH64_FEATURE_FP 0x00020000 /* FP instructions. */
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#define AARCH64_FEATURE_SIMD 0x00040000 /* SIMD instructions. */
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#define AARCH64_FEATURE_CRC 0x00080000 /* CRC instructions. */
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/* Architectures are the sum of the base and extensions. */
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#define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
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| AARCH64_FEATURE_SIMD)
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#define AARCH64_ARCH_NONE AARCH64_FEATURE (0, 0)
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#define AARCH64_ANY AARCH64_FEATURE (-1, 0) /* Any basic core. */
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/* CPU-specific features. */
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typedef unsigned long aarch64_feature_set;
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#define AARCH64_CPU_HAS_FEATURE(CPU,FEAT) \
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(((CPU) & (FEAT)) != 0)
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#define AARCH64_MERGE_FEATURE_SETS(TARG,F1,F2) \
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(TARG) = (F1) | (F2); \
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#define AARCH64_CLEAR_FEATURE(TARG,F1,F2) \
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(TARG) = (F1) &~ (F2); \
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#define AARCH64_FEATURE(core,coproc) ((core) | (coproc))
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#define AARCH64_OPCODE_HAS_FEATURE(OPC,FEAT) \
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(((OPC) & (FEAT)) != 0)
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enum aarch64_operand_class
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AARCH64_OPND_CLASS_NIL,
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AARCH64_OPND_CLASS_INT_REG,
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AARCH64_OPND_CLASS_MODIFIED_REG,
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AARCH64_OPND_CLASS_FP_REG,
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AARCH64_OPND_CLASS_SIMD_REG,
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AARCH64_OPND_CLASS_SIMD_ELEMENT,
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AARCH64_OPND_CLASS_SISD_REG,
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AARCH64_OPND_CLASS_SIMD_REGLIST,
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AARCH64_OPND_CLASS_CP_REG,
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AARCH64_OPND_CLASS_ADDRESS,
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AARCH64_OPND_CLASS_IMMEDIATE,
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AARCH64_OPND_CLASS_SYSTEM,
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/* Operand code that helps both parsing and coding.
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Keep AARCH64_OPERANDS synced. */
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AARCH64_OPND_NIL, /* no operand---MUST BE FIRST!*/
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AARCH64_OPND_Rd, /* Integer register as destination. */
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AARCH64_OPND_Rn, /* Integer register as source. */
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AARCH64_OPND_Rm, /* Integer register as source. */
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AARCH64_OPND_Rt, /* Integer register used in ld/st instructions. */
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AARCH64_OPND_Rt2, /* Integer register used in ld/st pair instructions. */
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AARCH64_OPND_Rs, /* Integer register used in ld/st exclusive. */
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AARCH64_OPND_Ra, /* Integer register used in ddp_3src instructions. */
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AARCH64_OPND_Rt_SYS, /* Integer register used in system instructions. */
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AARCH64_OPND_Rd_SP, /* Integer Rd or SP. */
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AARCH64_OPND_Rn_SP, /* Integer Rn or SP. */
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AARCH64_OPND_Rm_EXT, /* Integer Rm extended. */
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AARCH64_OPND_Rm_SFT, /* Integer Rm shifted. */
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AARCH64_OPND_Fd, /* Floating-point Fd. */
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AARCH64_OPND_Fn, /* Floating-point Fn. */
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AARCH64_OPND_Fm, /* Floating-point Fm. */
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AARCH64_OPND_Fa, /* Floating-point Fa. */
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AARCH64_OPND_Ft, /* Floating-point Ft. */
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AARCH64_OPND_Ft2, /* Floating-point Ft2. */
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AARCH64_OPND_Sd, /* AdvSIMD Scalar Sd. */
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AARCH64_OPND_Sn, /* AdvSIMD Scalar Sn. */
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AARCH64_OPND_Sm, /* AdvSIMD Scalar Sm. */
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AARCH64_OPND_Vd, /* AdvSIMD Vector Vd. */
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AARCH64_OPND_Vn, /* AdvSIMD Vector Vn. */
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AARCH64_OPND_Vm, /* AdvSIMD Vector Vm. */
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AARCH64_OPND_VdD1, /* AdvSIMD <Vd>.D[1]; for FMOV only. */
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AARCH64_OPND_VnD1, /* AdvSIMD <Vn>.D[1]; for FMOV only. */
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AARCH64_OPND_Ed, /* AdvSIMD Vector Element Vd. */
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AARCH64_OPND_En, /* AdvSIMD Vector Element Vn. */
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AARCH64_OPND_Em, /* AdvSIMD Vector Element Vm. */
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AARCH64_OPND_LVn, /* AdvSIMD Vector register list used in e.g. TBL. */
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AARCH64_OPND_LVt, /* AdvSIMD Vector register list used in ld/st. */
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AARCH64_OPND_LVt_AL, /* AdvSIMD Vector register list for loading single
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structure to all lanes. */
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AARCH64_OPND_LEt, /* AdvSIMD Vector Element list. */
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AARCH64_OPND_Cn, /* Co-processor register in CRn field. */
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AARCH64_OPND_Cm, /* Co-processor register in CRm field. */
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AARCH64_OPND_IDX, /* AdvSIMD EXT index operand. */
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AARCH64_OPND_IMM_VLSL,/* Immediate for shifting vector registers left. */
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AARCH64_OPND_IMM_VLSR,/* Immediate for shifting vector registers right. */
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AARCH64_OPND_SIMD_IMM,/* AdvSIMD modified immediate without shift. */
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AARCH64_OPND_SIMD_IMM_SFT, /* AdvSIMD modified immediate with shift. */
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AARCH64_OPND_SIMD_FPIMM,/* AdvSIMD 8-bit fp immediate. */
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AARCH64_OPND_SHLL_IMM,/* Immediate shift for AdvSIMD SHLL instruction
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AARCH64_OPND_IMM0, /* Immediate for #0. */
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AARCH64_OPND_FPIMM0, /* Immediate for #0.0. */
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AARCH64_OPND_FPIMM, /* Floating-point Immediate. */
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AARCH64_OPND_IMMR, /* Immediate #<immr> in e.g. BFM. */
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AARCH64_OPND_IMMS, /* Immediate #<imms> in e.g. BFM. */
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AARCH64_OPND_WIDTH, /* Immediate #<width> in e.g. BFI. */
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AARCH64_OPND_IMM, /* Immediate. */
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AARCH64_OPND_UIMM3_OP1,/* Unsigned 3-bit immediate in the op1 field. */
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AARCH64_OPND_UIMM3_OP2,/* Unsigned 3-bit immediate in the op2 field. */
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AARCH64_OPND_UIMM4, /* Unsigned 4-bit immediate in the CRm field. */
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AARCH64_OPND_UIMM7, /* Unsigned 7-bit immediate in the CRm:op2 fields. */
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AARCH64_OPND_BIT_NUM, /* Immediate. */
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AARCH64_OPND_EXCEPTION,/* imm16 operand in exception instructions. */
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AARCH64_OPND_CCMP_IMM,/* Immediate in conditional compare instructions. */
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AARCH64_OPND_NZCV, /* Flag bit specifier giving an alternative value for
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each condition flag. */
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AARCH64_OPND_LIMM, /* Logical Immediate. */
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AARCH64_OPND_AIMM, /* Arithmetic immediate. */
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AARCH64_OPND_HALF, /* #<imm16>{, LSL #<shift>} operand in move wide. */
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AARCH64_OPND_FBITS, /* FP #<fbits> operand in e.g. SCVTF */
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AARCH64_OPND_IMM_MOV, /* Immediate operand for the MOV alias. */
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AARCH64_OPND_COND, /* Standard condition as the last operand. */
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AARCH64_OPND_ADDR_ADRP, /* Memory address for ADRP */
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AARCH64_OPND_ADDR_PCREL14, /* 14-bit PC-relative address for e.g. TBZ. */
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AARCH64_OPND_ADDR_PCREL19, /* 19-bit PC-relative address for e.g. LDR. */
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AARCH64_OPND_ADDR_PCREL21, /* 21-bit PC-relative address for e.g. ADR. */
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AARCH64_OPND_ADDR_PCREL26, /* 26-bit PC-relative address for e.g. BL. */
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AARCH64_OPND_ADDR_SIMPLE, /* Address of ld/st exclusive. */
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AARCH64_OPND_ADDR_REGOFF, /* Address of register offset. */
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AARCH64_OPND_ADDR_SIMM7, /* Address of signed 7-bit immediate. */
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AARCH64_OPND_ADDR_SIMM9, /* Address of signed 9-bit immediate. */
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AARCH64_OPND_ADDR_SIMM9_2, /* Same as the above, but the immediate is
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negative or unaligned and there is
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no writeback allowed. This operand code
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is only used to support the programmer-
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friendly feature of using LDR/STR as the
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the mnemonic name for LDUR/STUR instructions
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wherever there is no ambiguity. */
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AARCH64_OPND_ADDR_UIMM12, /* Address of unsigned 12-bit immediate. */
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AARCH64_OPND_SIMD_ADDR_SIMPLE,/* Address of ld/st multiple structures. */
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AARCH64_OPND_SIMD_ADDR_POST, /* Address of ld/st multiple post-indexed. */
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AARCH64_OPND_SYSREG, /* System register operand. */
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AARCH64_OPND_PSTATEFIELD, /* PSTATE field name operand. */
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AARCH64_OPND_SYSREG_AT, /* System register <at_op> operand. */
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AARCH64_OPND_SYSREG_DC, /* System register <dc_op> operand. */
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AARCH64_OPND_SYSREG_IC, /* System register <ic_op> operand. */
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AARCH64_OPND_SYSREG_TLBI, /* System register <tlbi_op> operand. */
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AARCH64_OPND_BARRIER, /* Barrier operand. */
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AARCH64_OPND_BARRIER_ISB, /* Barrier operand for ISB. */
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AARCH64_OPND_PRFOP, /* Prefetch operation. */
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/* Qualifier constrains an operand. It either specifies a variant of an
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operand type or limits values available to an operand type.
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N.B. Order is important; keep aarch64_opnd_qualifiers synced. */
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enum aarch64_opnd_qualifier
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/* Indicating no further qualification on an operand. */
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AARCH64_OPND_QLF_NIL,
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/* Qualifying an operand which is a general purpose (integer) register;
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indicating the operand data size or a specific register. */
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AARCH64_OPND_QLF_W, /* Wn, WZR or WSP. */
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AARCH64_OPND_QLF_X, /* Xn, XZR or XSP. */
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AARCH64_OPND_QLF_WSP, /* WSP. */
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AARCH64_OPND_QLF_SP, /* SP. */
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/* Qualifying an operand which is a floating-point register, a SIMD
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vector element or a SIMD vector element list; indicating operand data
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size or the size of each SIMD vector element in the case of a SIMD
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These qualifiers are also used to qualify an address operand to
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indicate the size of data element a load/store instruction is
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They are also used for the immediate shift operand in e.g. SSHR. Such
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a use is only for the ease of operand encoding/decoding and qualifier
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sequence matching; such a use should not be applied widely; use the value
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constraint qualifiers for immediate operands wherever possible. */
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AARCH64_OPND_QLF_S_B,
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AARCH64_OPND_QLF_S_H,
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AARCH64_OPND_QLF_S_S,
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AARCH64_OPND_QLF_S_D,
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AARCH64_OPND_QLF_S_Q,
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/* Qualifying an operand which is a SIMD vector register or a SIMD vector
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register list; indicating register shape.
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They are also used for the immediate shift operand in e.g. SSHR. Such
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a use is only for the ease of operand encoding/decoding and qualifier
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sequence matching; such a use should not be applied widely; use the value
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constraint qualifiers for immediate operands wherever possible. */
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AARCH64_OPND_QLF_V_8B,
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AARCH64_OPND_QLF_V_16B,
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AARCH64_OPND_QLF_V_4H,
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AARCH64_OPND_QLF_V_8H,
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AARCH64_OPND_QLF_V_2S,
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AARCH64_OPND_QLF_V_4S,
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AARCH64_OPND_QLF_V_1D,
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AARCH64_OPND_QLF_V_2D,
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AARCH64_OPND_QLF_V_1Q,
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/* Constraint on value. */
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AARCH64_OPND_QLF_imm_0_7,
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AARCH64_OPND_QLF_imm_0_15,
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AARCH64_OPND_QLF_imm_0_31,
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AARCH64_OPND_QLF_imm_0_63,
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AARCH64_OPND_QLF_imm_1_32,
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AARCH64_OPND_QLF_imm_1_64,
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/* Indicate whether an AdvSIMD modified immediate operand is shift-zeros
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AARCH64_OPND_QLF_LSL,
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AARCH64_OPND_QLF_MSL,
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/* Special qualifier helping retrieve qualifier information during the
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decoding time (currently not in use). */
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AARCH64_OPND_QLF_RETRIEVE,
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/* Instruction class. */
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enum aarch64_insn_class
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ldst_imm9, /* immpost or immpre */
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/* Opcode enumerators. */
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OP_MOV_IMM_LOG, /* MOV alias for moving bitmask immediate. */
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OP_MOV_IMM_WIDE, /* MOV alias for moving wide immediate. */
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OP_MOV_IMM_WIDEN, /* MOV alias for moving wide immediate (negated). */
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OP_MOV_V, /* MOV alias for moving vector register. */
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OP_FCVTXN_S, /* Scalar version. */
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OP_TOTAL_NUM, /* Pseudo. */
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/* Maximum number of operands an instruction can have. */
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#define AARCH64_MAX_OPND_NUM 6
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/* Maximum number of qualifier sequences an instruction can have. */
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#define AARCH64_MAX_QLF_SEQ_NUM 10
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/* Operand qualifier typedef; optimized for the size. */
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typedef unsigned char aarch64_opnd_qualifier_t;
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/* Operand qualifier sequence typedef. */
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typedef aarch64_opnd_qualifier_t \
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aarch64_opnd_qualifier_seq_t [AARCH64_MAX_OPND_NUM];
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/* FIXME: improve the efficiency. */
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static inline bfd_boolean
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empty_qualifier_sequence_p (const aarch64_opnd_qualifier_t *qualifiers)
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for (i = 0; i < AARCH64_MAX_OPND_NUM; ++i)
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if (qualifiers[i] != AARCH64_OPND_QLF_NIL)
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/* This structure holds information for a particular opcode. */
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struct aarch64_opcode
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/* The name of the mnemonic. */
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/* The opcode itself. Those bits which will be filled in with
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operands are zeroes. */
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/* The opcode mask. This is used by the disassembler. This is a
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mask containing ones indicating those bits which must match the
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opcode field, and zeroes indicating those bits which need not
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match (and are presumably filled in by operands). */
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/* Instruction class. */
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enum aarch64_insn_class iclass;
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/* Enumerator identifier. */
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/* Which architecture variant provides this instruction. */
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const aarch64_feature_set *avariant;
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/* An array of operand codes. Each code is an index into the
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operand table. They appear in the order which the operands must
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appear in assembly code, and are terminated by a zero. */
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enum aarch64_opnd operands[AARCH64_MAX_OPND_NUM];
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/* A list of operand qualifier code sequence. Each operand qualifier
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code qualifies the corresponding operand code. Each operand
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qualifier sequence specifies a valid opcode variant and related
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constraint on operands. */
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aarch64_opnd_qualifier_seq_t qualifiers_list[AARCH64_MAX_QLF_SEQ_NUM];
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/* Flags providing information about this instruction */
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typedef struct aarch64_opcode aarch64_opcode;
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/* Table describing all the AArch64 opcodes. */
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extern aarch64_opcode aarch64_opcode_table[];
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#define F_ALIAS (1 << 0)
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#define F_HAS_ALIAS (1 << 1)
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/* Disassembly preference priority 1-3 (the larger the higher). If nothing
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is specified, it is the priority 0 by default, i.e. the lowest priority. */
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#define F_P1 (1 << 2)
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#define F_P2 (2 << 2)
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#define F_P3 (3 << 2)
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/* Flag an instruction that is truly conditional executed, e.g. b.cond. */
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#define F_COND (1 << 4)
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/* Instruction has the field of 'sf'. */
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#define F_SF (1 << 5)
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/* Instruction has the field of 'size:Q'. */
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#define F_SIZEQ (1 << 6)
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/* Floating-point instruction has the field of 'type'. */
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#define F_FPTYPE (1 << 7)
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/* AdvSIMD scalar instruction has the field of 'size'. */
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#define F_SSIZE (1 << 8)
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/* AdvSIMD vector register arrangement specifier encoded in "imm5<3:0>:Q". */
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/* Size of GPR operand in AdvSIMD instructions encoded in Q. */
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#define F_GPRSIZE_IN_Q (1 << 10)
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/* Size of Rt load signed instruction encoded in opc[0], i.e. bit 22. */
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#define F_LDS_SIZE (1 << 11)
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/* Optional operand; assume maximum of 1 operand can be optional. */
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#define F_OPD0_OPT (1 << 12)
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#define F_OPD1_OPT (2 << 12)
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#define F_OPD2_OPT (3 << 12)
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#define F_OPD3_OPT (4 << 12)
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#define F_OPD4_OPT (5 << 12)
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/* Default value for the optional operand when omitted from the assembly. */
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#define F_DEFAULT(X) (((X) & 0x1f) << 15)
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/* Instruction that is an alias of another instruction needs to be
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encoded/decoded by converting it to/from the real form, followed by
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the encoding/decoding according to the rules of the real opcode.
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This compares to the direct coding using the alias's information.
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N.B. this flag requires F_ALIAS to be used together. */
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#define F_CONV (1 << 20)
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/* Use together with F_ALIAS to indicate an alias opcode is a programmer
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friendly pseudo instruction available only in the assembly code (thus will
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not show up in the disassembly). */
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#define F_PSEUDO (1 << 21)
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/* Instruction has miscellaneous encoding/decoding rules. */
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#define F_MISC (1 << 22)
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/* Instruction has the field of 'N'; used in conjunction with F_SF. */
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#define F_N (1 << 23)
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/* Opcode dependent field. */
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#define F_OD(X) (((X) & 0x7) << 24)
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/* Next bit is 27. */
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static inline bfd_boolean
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alias_opcode_p (const aarch64_opcode *opcode)
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return (opcode->flags & F_ALIAS) ? TRUE : FALSE;
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static inline bfd_boolean
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opcode_has_alias (const aarch64_opcode *opcode)
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return (opcode->flags & F_HAS_ALIAS) ? TRUE : FALSE;
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/* Priority for disassembling preference. */
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opcode_priority (const aarch64_opcode *opcode)
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return (opcode->flags >> 2) & 0x3;
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static inline bfd_boolean
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pseudo_opcode_p (const aarch64_opcode *opcode)
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return (opcode->flags & F_PSEUDO) != 0lu ? TRUE : FALSE;
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static inline bfd_boolean
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optional_operand_p (const aarch64_opcode *opcode, unsigned int idx)
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return (((opcode->flags >> 12) & 0x7) == idx + 1)
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static inline aarch64_insn
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get_optional_operand_default_value (const aarch64_opcode *opcode)
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return (opcode->flags >> 15) & 0x1f;
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static inline unsigned int
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get_opcode_dependent_value (const aarch64_opcode *opcode)
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return (opcode->flags >> 24) & 0x7;
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static inline bfd_boolean
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opcode_has_special_coder (const aarch64_opcode *opcode)
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return (opcode->flags & (F_SF | F_SIZEQ | F_FPTYPE | F_SSIZE | F_T
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| F_GPRSIZE_IN_Q | F_LDS_SIZE | F_MISC | F_N | F_COND)) ? TRUE
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struct aarch64_name_value_pair
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extern const struct aarch64_name_value_pair aarch64_operand_modifiers [];
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extern const struct aarch64_name_value_pair aarch64_sys_regs [];
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extern const struct aarch64_name_value_pair aarch64_pstatefields [];
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extern const struct aarch64_name_value_pair aarch64_barrier_options [16];
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extern const struct aarch64_name_value_pair aarch64_prfops [32];
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const char *template;
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} aarch64_sys_ins_reg;
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extern const aarch64_sys_ins_reg aarch64_sys_regs_ic [];
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extern const aarch64_sys_ins_reg aarch64_sys_regs_dc [];
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extern const aarch64_sys_ins_reg aarch64_sys_regs_at [];
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extern const aarch64_sys_ins_reg aarch64_sys_regs_tlbi [];
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/* Shift/extending operator kinds.
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N.B. order is important; keep aarch64_operand_modifiers synced. */
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enum aarch64_modifier_kind
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aarch64_extend_operator_p (enum aarch64_modifier_kind);
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enum aarch64_modifier_kind
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aarch64_get_operand_modifier (const struct aarch64_name_value_pair *);
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/* A list of names with the first one as the disassembly preference;
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terminated by NULL if fewer than 3. */
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const char *names[3];
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extern const aarch64_cond aarch64_conds[16];
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const aarch64_cond* get_cond_from_value (aarch64_insn value);
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const aarch64_cond* get_inverted_cond (const aarch64_cond *cond);
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/* Structure representing an operand. */
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struct aarch64_opnd_info
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enum aarch64_opnd type;
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aarch64_opnd_qualifier_t qualifier;
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unsigned first_regno : 5;
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unsigned num_regs : 3;
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/* 1 if it is a list of reg element. */
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unsigned has_index : 1;
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/* Lane index; valid only when has_index is 1. */
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/* e.g. immediate or pc relative address offset. */
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/* e.g. address in STR (register offset). */
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unsigned pcrel : 1; /* PC-relative. */
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unsigned writeback : 1;
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unsigned preind : 1; /* Pre-indexed. */
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unsigned postind : 1; /* Post-indexed. */
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const aarch64_cond *cond;
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/* The encoding of the system register. */
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/* The encoding of the PSTATE field. */
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aarch64_insn pstatefield;
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const aarch64_sys_ins_reg *sysins_op;
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const struct aarch64_name_value_pair *barrier;
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const struct aarch64_name_value_pair *prfop;
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/* Operand shifter; in use when the operand is a register offset address,
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add/sub extended reg, etc. e.g. <R><m>{, <extend> {#<amount>}}. */
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enum aarch64_modifier_kind kind;
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unsigned operator_present: 1; /* Only valid during encoding. */
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/* Value of the 'S' field in ld/st reg offset; used only in decoding. */
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unsigned amount_present: 1;
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unsigned skip:1; /* Operand is not completed if there is a fixup needed
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to be done on it. In some (but not all) of these
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cases, we need to tell libopcodes to skip the
746
constraint checking and the encoding for this
747
operand, so that the libopcodes can pick up the
748
right opcode before the operand is fixed-up. This
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flag should only be used during the
750
assembling/encoding. */
751
unsigned present:1; /* Whether this operand is present in the assembly
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line; not used during the disassembly. */
755
typedef struct aarch64_opnd_info aarch64_opnd_info;
757
/* Structure representing an instruction.
759
It is used during both the assembling and disassembling. The assembler
760
fills an aarch64_inst after a successful parsing and then passes it to the
761
encoding routine to do the encoding. During the disassembling, the
762
disassembler calls the decoding routine to decode a binary instruction; on a
763
successful return, such a structure will be filled with information of the
764
instruction; then the disassembler uses the information to print out the
769
/* The value of the binary instruction. */
772
/* Corresponding opcode entry. */
773
const aarch64_opcode *opcode;
775
/* Condition for a truly conditional-executed instrutions, e.g. b.cond. */
776
const aarch64_cond *cond;
778
/* Operands information. */
779
aarch64_opnd_info operands[AARCH64_MAX_OPND_NUM];
782
typedef struct aarch64_inst aarch64_inst;
784
/* Diagnosis related declaration and interface. */
786
/* Operand error kind enumerators.
788
AARCH64_OPDE_RECOVERABLE
789
Less severe error found during the parsing, very possibly because that
790
GAS has picked up a wrong instruction template for the parsing.
792
AARCH64_OPDE_SYNTAX_ERROR
793
General syntax error; it can be either a user error, or simply because
794
that GAS is trying a wrong instruction template.
796
AARCH64_OPDE_FATAL_SYNTAX_ERROR
797
Definitely a user syntax error.
799
AARCH64_OPDE_INVALID_VARIANT
800
No syntax error, but the operands are not a valid combination, e.g.
803
AARCH64_OPDE_OUT_OF_RANGE
804
Error about some immediate value out of a valid range.
806
AARCH64_OPDE_UNALIGNED
807
Error about some immediate value not properly aligned (i.e. not being a
808
multiple times of a certain value).
810
AARCH64_OPDE_REG_LIST
811
Error about the register list operand having unexpected number of
814
AARCH64_OPDE_OTHER_ERROR
815
Error of the highest severity and used for any severe issue that does not
816
fall into any of the above categories.
818
The enumerators are only interesting to GAS. They are declared here (in
819
libopcodes) because that some errors are detected (and then notified to GAS)
820
by libopcodes (rather than by GAS solely).
822
The first three errors are only deteced by GAS while the
823
AARCH64_OPDE_INVALID_VARIANT error can only be spotted by libopcodes as
824
only libopcodes has the information about the valid variants of each
827
The enumerators have an increasing severity. This is helpful when there are
828
multiple instruction templates available for a given mnemonic name (e.g.
829
FMOV); this mechanism will help choose the most suitable template from which
830
the generated diagnostics can most closely describe the issues, if any. */
832
enum aarch64_operand_error_kind
835
AARCH64_OPDE_RECOVERABLE,
836
AARCH64_OPDE_SYNTAX_ERROR,
837
AARCH64_OPDE_FATAL_SYNTAX_ERROR,
838
AARCH64_OPDE_INVALID_VARIANT,
839
AARCH64_OPDE_OUT_OF_RANGE,
840
AARCH64_OPDE_UNALIGNED,
841
AARCH64_OPDE_REG_LIST,
842
AARCH64_OPDE_OTHER_ERROR
845
/* N.B. GAS assumes that this structure work well with shallow copy. */
846
struct aarch64_operand_error
848
enum aarch64_operand_error_kind kind;
851
int data[3]; /* Some data for extra information. */
854
typedef struct aarch64_operand_error aarch64_operand_error;
856
/* Encoding entrypoint. */
859
aarch64_opcode_encode (const aarch64_opcode *, const aarch64_inst *,
860
aarch64_insn *, aarch64_opnd_qualifier_t *,
861
aarch64_operand_error *);
863
extern const aarch64_opcode *
864
aarch64_replace_opcode (struct aarch64_inst *,
865
const aarch64_opcode *);
867
/* Given the opcode enumerator OP, return the pointer to the corresponding
870
extern const aarch64_opcode *
871
aarch64_get_opcode (enum aarch64_op);
873
/* Generate the string representation of an operand. */
875
aarch64_print_operand (char *, size_t, bfd_vma, const aarch64_opcode *,
876
const aarch64_opnd_info *, int, int *, bfd_vma *);
878
/* Miscellaneous interface. */
881
aarch64_operand_index (const enum aarch64_opnd *, enum aarch64_opnd);
883
extern aarch64_opnd_qualifier_t
884
aarch64_get_expected_qualifier (const aarch64_opnd_qualifier_seq_t *, int,
885
const aarch64_opnd_qualifier_t, int);
888
aarch64_num_of_operands (const aarch64_opcode *);
891
aarch64_stack_pointer_p (const aarch64_opnd_info *);
894
int aarch64_zero_register_p (const aarch64_opnd_info *);
896
/* Given an operand qualifier, return the expected data element size
897
of a qualified operand. */
899
aarch64_get_qualifier_esize (aarch64_opnd_qualifier_t);
901
extern enum aarch64_operand_class
902
aarch64_get_operand_class (enum aarch64_opnd);
905
aarch64_get_operand_name (enum aarch64_opnd);
908
aarch64_get_operand_desc (enum aarch64_opnd);
911
extern int debug_dump;
914
aarch64_verbose (const char *, ...) __attribute__ ((format (printf, 1, 2)));
916
#define DEBUG_TRACE(M, ...) \
919
aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \
922
#define DEBUG_TRACE_IF(C, M, ...) \
924
if (debug_dump && (C)) \
925
aarch64_verbose ("%s: " M ".", __func__, ##__VA_ARGS__); \
927
#else /* !DEBUG_AARCH64 */
928
#define DEBUG_TRACE(M, ...) ;
929
#define DEBUG_TRACE_IF(C, M, ...) ;
930
#endif /* DEBUG_AARCH64 */
932
#endif /* OPCODE_AARCH64_H */