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230 lines
5.9 KiB
230 lines
5.9 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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#ifndef _ASM_X86_INAT_H |
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#define _ASM_X86_INAT_H |
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/* |
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* x86 instruction attributes |
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* |
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* Written by Masami Hiramatsu <[email protected]> |
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*/ |
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#include <asm/inat_types.h> |
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/* |
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* Internal bits. Don't use bitmasks directly, because these bits are |
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* unstable. You should use checking functions. |
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*/ |
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#define INAT_OPCODE_TABLE_SIZE 256 |
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#define INAT_GROUP_TABLE_SIZE 8 |
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/* Legacy last prefixes */ |
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#define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */ |
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#define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */ |
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#define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */ |
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/* Other Legacy prefixes */ |
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#define INAT_PFX_LOCK 4 /* 0xF0 */ |
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#define INAT_PFX_CS 5 /* 0x2E */ |
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#define INAT_PFX_DS 6 /* 0x3E */ |
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#define INAT_PFX_ES 7 /* 0x26 */ |
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#define INAT_PFX_FS 8 /* 0x64 */ |
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#define INAT_PFX_GS 9 /* 0x65 */ |
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#define INAT_PFX_SS 10 /* 0x36 */ |
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#define INAT_PFX_ADDRSZ 11 /* 0x67 */ |
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/* x86-64 REX prefix */ |
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#define INAT_PFX_REX 12 /* 0x4X */ |
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/* AVX VEX prefixes */ |
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#define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */ |
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#define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */ |
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#define INAT_PFX_EVEX 15 /* EVEX prefix */ |
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#define INAT_LSTPFX_MAX 3 |
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#define INAT_LGCPFX_MAX 11 |
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/* Immediate size */ |
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#define INAT_IMM_BYTE 1 |
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#define INAT_IMM_WORD 2 |
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#define INAT_IMM_DWORD 3 |
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#define INAT_IMM_QWORD 4 |
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#define INAT_IMM_PTR 5 |
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#define INAT_IMM_VWORD32 6 |
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#define INAT_IMM_VWORD 7 |
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/* Legacy prefix */ |
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#define INAT_PFX_OFFS 0 |
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#define INAT_PFX_BITS 4 |
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#define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1) |
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#define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS) |
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/* Escape opcodes */ |
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#define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS) |
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#define INAT_ESC_BITS 2 |
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#define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1) |
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#define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS) |
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/* Group opcodes (1-16) */ |
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#define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS) |
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#define INAT_GRP_BITS 5 |
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#define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1) |
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#define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS) |
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/* Immediates */ |
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#define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS) |
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#define INAT_IMM_BITS 3 |
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#define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS) |
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/* Flags */ |
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#define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS) |
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#define INAT_MODRM (1 << (INAT_FLAG_OFFS)) |
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#define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1)) |
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#define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2)) |
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#define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3)) |
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#define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4)) |
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#define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5)) |
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#define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6)) |
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#define INAT_EVEXONLY (1 << (INAT_FLAG_OFFS + 7)) |
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/* Attribute making macros for attribute tables */ |
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#define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS) |
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#define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS) |
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#define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM) |
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#define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS) |
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/* Identifiers for segment registers */ |
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#define INAT_SEG_REG_IGNORE 0 |
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#define INAT_SEG_REG_DEFAULT 1 |
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#define INAT_SEG_REG_CS 2 |
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#define INAT_SEG_REG_SS 3 |
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#define INAT_SEG_REG_DS 4 |
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#define INAT_SEG_REG_ES 5 |
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#define INAT_SEG_REG_FS 6 |
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#define INAT_SEG_REG_GS 7 |
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/* Attribute search APIs */ |
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extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode); |
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extern int inat_get_last_prefix_id(insn_byte_t last_pfx); |
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extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, |
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int lpfx_id, |
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insn_attr_t esc_attr); |
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extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm, |
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int lpfx_id, |
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insn_attr_t esc_attr); |
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extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, |
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insn_byte_t vex_m, |
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insn_byte_t vex_pp); |
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/* Attribute checking functions */ |
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static inline int inat_is_legacy_prefix(insn_attr_t attr) |
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{ |
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attr &= INAT_PFX_MASK; |
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return attr && attr <= INAT_LGCPFX_MAX; |
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} |
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static inline int inat_is_address_size_prefix(insn_attr_t attr) |
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{ |
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return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ; |
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} |
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static inline int inat_is_operand_size_prefix(insn_attr_t attr) |
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{ |
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return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ; |
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} |
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static inline int inat_is_rex_prefix(insn_attr_t attr) |
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{ |
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return (attr & INAT_PFX_MASK) == INAT_PFX_REX; |
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} |
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static inline int inat_last_prefix_id(insn_attr_t attr) |
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{ |
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if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX) |
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return 0; |
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else |
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return attr & INAT_PFX_MASK; |
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} |
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static inline int inat_is_vex_prefix(insn_attr_t attr) |
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{ |
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attr &= INAT_PFX_MASK; |
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return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3 || |
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attr == INAT_PFX_EVEX; |
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} |
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static inline int inat_is_evex_prefix(insn_attr_t attr) |
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{ |
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return (attr & INAT_PFX_MASK) == INAT_PFX_EVEX; |
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} |
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static inline int inat_is_vex3_prefix(insn_attr_t attr) |
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{ |
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return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3; |
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} |
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static inline int inat_is_escape(insn_attr_t attr) |
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{ |
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return attr & INAT_ESC_MASK; |
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} |
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static inline int inat_escape_id(insn_attr_t attr) |
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{ |
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return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS; |
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} |
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static inline int inat_is_group(insn_attr_t attr) |
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{ |
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return attr & INAT_GRP_MASK; |
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} |
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static inline int inat_group_id(insn_attr_t attr) |
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{ |
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return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS; |
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} |
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static inline int inat_group_common_attribute(insn_attr_t attr) |
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{ |
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return attr & ~INAT_GRP_MASK; |
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} |
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static inline int inat_has_immediate(insn_attr_t attr) |
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{ |
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return attr & INAT_IMM_MASK; |
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} |
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static inline int inat_immediate_size(insn_attr_t attr) |
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{ |
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return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS; |
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} |
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static inline int inat_has_modrm(insn_attr_t attr) |
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{ |
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return attr & INAT_MODRM; |
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} |
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static inline int inat_is_force64(insn_attr_t attr) |
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{ |
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return attr & INAT_FORCE64; |
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} |
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static inline int inat_has_second_immediate(insn_attr_t attr) |
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{ |
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return attr & INAT_SCNDIMM; |
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} |
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static inline int inat_has_moffset(insn_attr_t attr) |
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{ |
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return attr & INAT_MOFFSET; |
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} |
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static inline int inat_has_variant(insn_attr_t attr) |
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{ |
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return attr & INAT_VARIANT; |
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} |
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static inline int inat_accept_vex(insn_attr_t attr) |
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{ |
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return attr & INAT_VEXOK; |
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} |
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static inline int inat_must_vex(insn_attr_t attr) |
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{ |
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return attr & (INAT_VEXONLY | INAT_EVEXONLY); |
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} |
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static inline int inat_must_evex(insn_attr_t attr) |
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{ |
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return attr & INAT_EVEXONLY; |
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} |
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#endif
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