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authorauth12 <[email protected]>2020-07-19 11:45:43 -0700
committerauth12 <[email protected]>2020-07-19 11:45:43 -0700
commit4e6a09d486ed462ee4cf38c3735a12d530dc09d4 (patch)
treea67ccac41fef7a412b4357fbe54582cc4b692863 /client/asmjit/x86/x86opcode_p.h
parentDeleted asmjit submodule (diff)
downloadloader-4e6a09d486ed462ee4cf38c3735a12d530dc09d4.tar.xz
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+// AsmJit - Machine code generation for C++
+//
+// * Official AsmJit Home Page: https://asmjit.com
+// * Official Github Repository: https://github.com/asmjit/asmjit
+//
+// Copyright (c) 2008-2020 The AsmJit Authors
+//
+// This software is provided 'as-is', without any express or implied
+// warranty. In no event will the authors be held liable for any damages
+// arising from the use of this software.
+//
+// Permission is granted to anyone to use this software for any purpose,
+// including commercial applications, and to alter it and redistribute it
+// freely, subject to the following restrictions:
+//
+// 1. The origin of this software must not be misrepresented; you must not
+// claim that you wrote the original software. If you use this software
+// in a product, an acknowledgment in the product documentation would be
+// appreciated but is not required.
+// 2. Altered source versions must be plainly marked as such, and must not be
+// misrepresented as being the original software.
+// 3. This notice may not be removed or altered from any source distribution.
+
+#ifndef ASMJIT_X86_X86OPCODE_P_H_INCLUDED
+#define ASMJIT_X86_X86OPCODE_P_H_INCLUDED
+
+#include "../x86/x86globals.h"
+
+ASMJIT_BEGIN_SUB_NAMESPACE(x86)
+
+//! \cond INTERNAL
+//! \addtogroup asmjit_x86
+//! \{
+
+// ============================================================================
+// [asmjit::x86::Opcode]
+// ============================================================================
+
+//! Helper class to store and manipulate X86 opcodes.
+//!
+//! The first 8 least significant bits describe the opcode byte as defined in
+//! ISA manuals, all other bits describe other properties like prefixes, see
+//! `Opcode::Bits` for more information.
+struct Opcode {
+ uint32_t v;
+
+ //! Describes a meaning of all bits of AsmJit's 32-bit opcode value.
+ //!
+ //! This schema is AsmJit specific and has been designed to allow encoding of
+ //! all X86 instructions available. X86, MMX, and SSE+ instructions always use
+ //! `MM` and `PP` fields, which are encoded to corresponding prefixes needed
+ //! by X86 or SIMD instructions. AVX+ instructions embed `MMMMM` and `PP` fields
+ //! in a VEX prefix, and AVX-512 instructions embed `MM` and `PP` in EVEX prefix.
+ //!
+ //! The instruction opcode definition uses 1 or 2 bytes as an opcode value. 1
+ //! byte is needed by most of the instructions, 2 bytes are only used by legacy
+ //! X87-FPU instructions. This means that a second byte is free to by used by
+ //! instructions encoded by using VEX and/or EVEX prefix.
+ //!
+ //! The fields description:
+ //!
+ //! - `MM` field is used to encode prefixes needed by the instruction or as
+ //! a part of VEX/EVEX prefix. Described as `mm` and `mmmmm` in instruction
+ //! manuals.
+ //!
+ //! NOTE: Since `MM` field is defined as `mmmmm` (5 bits), but only 2 least
+ //! significant bits are used by VEX and EVEX prefixes, and additional 4th
+ //! bit is used by XOP prefix, AsmJit uses the 3rd and 5th bit for it's own
+ //! purposes. These bits will probably never be used in future encodings as
+ //! AVX512 uses only `000mm` from `mmmmm`.
+ //!
+ //! - `PP` field is used to encode prefixes needed by the instruction or as a
+ //! part of VEX/EVEX prefix. Described as `pp` in instruction manuals.
+ //!
+ //! - `LL` field is used exclusively by AVX+ and AVX512+ instruction sets. It
+ //! describes vector size, which is `L.128` for XMM register, `L.256` for
+ //! for YMM register, and `L.512` for ZMM register. The `LL` field is omitted
+ //! in case that instruction supports multiple vector lengths, however, if the
+ //! instruction requires specific `L` value it must be specified as a part of
+ //! the opcode.
+ //!
+ //! NOTE: `LL` having value `11` is not defined yet.
+ //!
+ //! - `W` field is the most complicated. It was added by 64-bit architecture
+ //! to promote default operation width (instructions that perform 32-bit
+ //! operation by default require to override the width to 64-bit explicitly).
+ //! There is nothing wrong on this, however, some instructions introduced
+ //! implicit `W` override, for example a `cdqe` instruction is basically a
+ //! `cwde` instruction with overridden `W` (set to 1). There are some others
+ //! in the base X86 instruction set. More recent instruction sets started
+ //! using `W` field more often:
+ //!
+ //! - AVX instructions started using `W` field as an extended opcode for FMA,
+ //! GATHER, PERM, and other instructions. It also uses `W` field to override
+ //! the default operation width in instructions like `vmovq`.
+ //!
+ //! - AVX-512 instructions started using `W` field as an extended opcode for
+ //! all new instructions. This wouldn't have been an issue if the `W` field
+ //! of AVX-512 have matched AVX, but this is not always the case.
+ //!
+ //! - `O` field is an extended opcode field (3 bits) embedded in ModR/M BYTE.
+ //!
+ //! - `CDSHL` and `CDTT` fields describe 'compressed-displacement'. `CDSHL` is
+ //! defined for each instruction that is AVX-512 encodable (EVEX) and contains
+ //! a base N shift (base shift to perform the calculation). The `CDTT` field
+ //! is derived from instruction specification and describes additional shift
+ //! to calculate the final `CDSHL` that will be used in SIB byte.
+ //!
+ //! \note Don't reorder any fields here, the shifts and masks were defined
+ //! carefully to make encoding of X86 instructions fast, especially to construct
+ //! REX, VEX, and EVEX prefixes in the most efficient way. Changing values defined
+ //! by these enums many cause AsmJit to emit invalid binary representations of
+ //! instructions passed to `x86::Assembler::_emit`.
+ enum Bits : uint32_t {
+ // MM & VEX & EVEX & XOP
+ // ---------------------
+ //
+ // Two meanings:
+ // * Part of a legacy opcode (prefixes emitted before the main opcode byte).
+ // * `MMMMM` field in VEX|EVEX|XOP instruction.
+ //
+ // AVX reserves 5 bits for `MMMMM` field, however AVX instructions only use
+ // 2 bits and XOP 3 bits. AVX-512 shrinks `MMMMM` field into `MM` so it's
+ // safe to assume that bits [4:2] of `MM` field won't be used in future
+ // extensions, which will most probably use EVEX encoding. AsmJit divides
+ // MM field into this layout:
+ //
+ // [1:0] - Used to describe 0F, 0F38 and 0F3A legacy prefix bytes and
+ // 2 bits of MM field.
+ // [2] - Used to force 3-BYTE VEX prefix, but then cleared to zero before
+ // the prefix is emitted. This bit is not used by any instruction
+ // so it can be used for any purpose by AsmJit. Also, this bit is
+ // used as an extension to `MM` field describing 0F|0F38|0F3A to also
+ // describe 0F01 as used by some legacy instructions (instructions
+ // not using VEX/EVEX prefix).
+ // [3] - Required by XOP instructions, so we use this bit also to indicate
+ // that this is a XOP opcode.
+ kMM_Shift = 8,
+ kMM_Mask = 0x1Fu << kMM_Shift,
+ kMM_00 = 0x00u << kMM_Shift,
+ kMM_0F = 0x01u << kMM_Shift,
+ kMM_0F38 = 0x02u << kMM_Shift,
+ kMM_0F3A = 0x03u << kMM_Shift, // Described also as XOP.M3 in AMD manuals.
+ kMM_0F01 = 0x04u << kMM_Shift, // AsmJit way to describe 0F01 (never VEX/EVEX).
+
+ // `XOP` field is only used to force XOP prefix instead of VEX3 prefix. We
+ // know that only XOP encoding uses bit 0b1000 of MM field and that no VEX
+ // and EVEX instruction uses such bit, so we can use this bit to force XOP
+ // prefix to be emitted instead of VEX3 prefix. See `x86VEXPrefix` defined
+ // in `x86assembler.cpp`.
+ kMM_XOP08 = 0x08u << kMM_Shift, // XOP.M8.
+ kMM_XOP09 = 0x09u << kMM_Shift, // XOP.M9.
+ kMM_XOP0A = 0x0Au << kMM_Shift, // XOP.MA.
+
+ kMM_IsXOP_Shift= kMM_Shift + 3,
+ kMM_IsXOP = kMM_XOP08,
+
+ // NOTE: Force VEX3 allows to force to emit VEX3 instead of VEX2 in some
+ // cases (similar to forcing REX prefix). Force EVEX will force emitting
+ // EVEX prefix instead of VEX2|VEX3. EVEX-only instructions will have
+ // ForceEvex always set, however. instructions that can be encoded by
+ // either VEX or EVEX prefix should not have ForceEvex set.
+
+ kMM_ForceVex3 = 0x04u << kMM_Shift, // Force 3-BYTE VEX prefix.
+ kMM_ForceEvex = 0x10u << kMM_Shift, // Force 4-BYTE EVEX prefix.
+
+ // FPU_2B - Second-Byte of the Opcode used by FPU
+ // ----------------------------------------------
+ //
+ // Second byte opcode. This BYTE is ONLY used by FPU instructions and
+ // collides with 3 bits from `MM` and 5 bits from 'CDSHL' and 'CDTT'.
+ // It's fine as FPU and AVX512 flags are never used at the same time.
+ kFPU_2B_Shift = 10,
+ kFPU_2B_Mask = 0xFF << kFPU_2B_Shift,
+
+ // CDSHL & CDTT
+ // ------------
+ //
+ // Compressed displacement bits.
+ //
+ // Each opcode defines the base size (N) shift:
+ // [0]: BYTE (1 byte).
+ // [1]: WORD (2 bytes).
+ // [2]: DWORD (4 bytes - float/int32).
+ // [3]: QWORD (8 bytes - double/int64).
+ // [4]: OWORD (16 bytes - used by FV|FVM|M128).
+ //
+ // Which is then scaled by the instruction's TT (TupleType) into possible:
+ // [5]: YWORD (32 bytes)
+ // [6]: ZWORD (64 bytes)
+ //
+ // These bits are then adjusted before calling EmitModSib or EmitModVSib.
+ kCDSHL_Shift = 13,
+ kCDSHL_Mask = 0x7u << kCDSHL_Shift,
+
+ kCDSHL__ = 0x0u << kCDSHL_Shift, // Base element size not used.
+ kCDSHL_0 = 0x0u << kCDSHL_Shift, // N << 0.
+ kCDSHL_1 = 0x1u << kCDSHL_Shift, // N << 1.
+ kCDSHL_2 = 0x2u << kCDSHL_Shift, // N << 2.
+ kCDSHL_3 = 0x3u << kCDSHL_Shift, // N << 3.
+ kCDSHL_4 = 0x4u << kCDSHL_Shift, // N << 4.
+ kCDSHL_5 = 0x5u << kCDSHL_Shift, // N << 5.
+
+ // Compressed displacement tuple-type (specific to AsmJit).
+ //
+ // Since we store the base offset independently of CDTT we can simplify the
+ // number of 'TUPLE_TYPE' groups significantly and just handle special cases.
+ kCDTT_Shift = 16,
+ kCDTT_Mask = 0x3u << kCDTT_Shift,
+ kCDTT_None = 0x0u << kCDTT_Shift, // Does nothing.
+ kCDTT_ByLL = 0x1u << kCDTT_Shift, // Scales by LL (1x 2x 4x).
+ kCDTT_T1W = 0x2u << kCDTT_Shift, // Used to add 'W' to the shift.
+ kCDTT_DUP = 0x3u << kCDTT_Shift, // Special 'VMOVDDUP' case.
+
+ // Aliases that match names used in instruction manuals.
+ kCDTT__ = kCDTT_None,
+ kCDTT_FV = kCDTT_ByLL,
+ kCDTT_HV = kCDTT_ByLL,
+ kCDTT_FVM = kCDTT_ByLL,
+ kCDTT_T1S = kCDTT_None,
+ kCDTT_T1F = kCDTT_None,
+ kCDTT_T1_4X = kCDTT_None,
+ kCDTT_T2 = kCDTT_None,
+ kCDTT_T4 = kCDTT_None,
+ kCDTT_T8 = kCDTT_None,
+ kCDTT_HVM = kCDTT_ByLL,
+ kCDTT_QVM = kCDTT_ByLL,
+ kCDTT_OVM = kCDTT_ByLL,
+ kCDTT_128 = kCDTT_None,
+
+ kCDTT_T4X = kCDTT_T1_4X, // Alias to have only 3 letters.
+
+ // `O` Field in ModR/M (??:xxx:???)
+ // --------------------------------
+
+ kModO_Shift = 18,
+ kModO_Mask = 0x7u << kModO_Shift,
+
+ kModO__ = 0x0u,
+ kModO_0 = 0x0u << kModO_Shift,
+ kModO_1 = 0x1u << kModO_Shift,
+ kModO_2 = 0x2u << kModO_Shift,
+ kModO_3 = 0x3u << kModO_Shift,
+ kModO_4 = 0x4u << kModO_Shift,
+ kModO_5 = 0x5u << kModO_Shift,
+ kModO_6 = 0x6u << kModO_Shift,
+ kModO_7 = 0x7u << kModO_Shift,
+
+ // `RM` Field in ModR/M (??:???:xxx)
+ // ---------------------------------
+ //
+ // Second data field used by ModR/M byte. This is only used by few
+ // instructions that use OPCODE+MOD/RM where both values in Mod/RM
+ // are part of the opcode.
+
+ kModRM_Shift = 10,
+ kModRM_Mask = 0x7u << kModRM_Shift,
+
+ kModRM__ = 0x0u,
+ kModRM_0 = 0x0u << kModRM_Shift,
+ kModRM_1 = 0x1u << kModRM_Shift,
+ kModRM_2 = 0x2u << kModRM_Shift,
+ kModRM_3 = 0x3u << kModRM_Shift,
+ kModRM_4 = 0x4u << kModRM_Shift,
+ kModRM_5 = 0x5u << kModRM_Shift,
+ kModRM_6 = 0x6u << kModRM_Shift,
+ kModRM_7 = 0x7u << kModRM_Shift,
+
+ // `PP` Field
+ // ----------
+ //
+ // These fields are stored deliberately right after each other as it makes
+ // it easier to construct VEX prefix from the opcode value stored in the
+ // instruction database.
+ //
+ // Two meanings:
+ // * "PP" field in AVX/XOP/AVX-512 instruction.
+ // * Mandatory Prefix in legacy encoding.
+ //
+ // AVX reserves 2 bits for `PP` field, but AsmJit extends the storage by 1
+ // more bit that is used to emit 9B prefix for some X87-FPU instructions.
+
+ kPP_Shift = 21,
+ kPP_VEXMask = 0x03u << kPP_Shift, // PP field mask used by VEX/EVEX.
+ kPP_FPUMask = 0x07u << kPP_Shift, // Mask used by EMIT_PP, also includes '0x9B'.
+ kPP_00 = 0x00u << kPP_Shift,
+ kPP_66 = 0x01u << kPP_Shift,
+ kPP_F3 = 0x02u << kPP_Shift,
+ kPP_F2 = 0x03u << kPP_Shift,
+
+ kPP_9B = 0x07u << kPP_Shift, // AsmJit specific to emit FPU's '9B' byte.
+
+ // REX|VEX|EVEX B|X|R|W Bits
+ // -------------------------
+ //
+ // NOTE: REX.[B|X|R] are never stored within the opcode itself, they are
+ // reserved by AsmJit are are added dynamically to the opcode to represent
+ // [REX|VEX|EVEX].[B|X|R] bits. REX.W can be stored in DB as it's sometimes
+ // part of the opcode itself.
+
+ // These must be binary compatible with instruction options.
+ kREX_Shift = 24,
+ kREX_Mask = 0x0Fu << kREX_Shift,
+ kB = 0x01u << kREX_Shift, // Never stored in DB, used by encoder.
+ kX = 0x02u << kREX_Shift, // Never stored in DB, used by encoder.
+ kR = 0x04u << kREX_Shift, // Never stored in DB, used by encoder.
+ kW = 0x08u << kREX_Shift,
+ kW_Shift = kREX_Shift + 3,
+
+ kW__ = 0u << kW_Shift, // REX.W/VEX.W is unspecified.
+ kW_x = 0u << kW_Shift, // REX.W/VEX.W is based on instruction operands.
+ kW_I = 0u << kW_Shift, // REX.W/VEX.W is ignored (WIG).
+ kW_0 = 0u << kW_Shift, // REX.W/VEX.W is 0 (W0).
+ kW_1 = 1u << kW_Shift, // REX.W/VEX.W is 1 (W1).
+
+ // EVEX.W Field
+ // ------------
+ //
+ // `W` field used by EVEX instruction encoding.
+
+ kEvex_W_Shift = 28,
+ kEvex_W_Mask = 1u << kEvex_W_Shift,
+
+ kEvex_W__ = 0u << kEvex_W_Shift, // EVEX.W is unspecified (not EVEX instruction).
+ kEvex_W_x = 0u << kEvex_W_Shift, // EVEX.W is based on instruction operands.
+ kEvex_W_I = 0u << kEvex_W_Shift, // EVEX.W is ignored (WIG).
+ kEvex_W_0 = 0u << kEvex_W_Shift, // EVEX.W is 0 (W0).
+ kEvex_W_1 = 1u << kEvex_W_Shift, // EVEX.W is 1 (W1).
+
+ // `L` or `LL` field in AVX/XOP/AVX-512
+ // ------------------------------------
+ //
+ // VEX/XOP prefix can only use the first bit `L.128` or `L.256`. EVEX prefix
+ // prefix makes it possible to use also `L.512`.
+ //
+ // If the instruction set manual describes an instruction by `LIG` it means
+ // that the `L` field is ignored and AsmJit defaults to `0` in such case.
+ kLL_Shift = 29,
+ kLL_Mask = 0x3u << kLL_Shift,
+
+ kLL__ = 0x0u << kLL_Shift, // LL is unspecified.
+ kLL_x = 0x0u << kLL_Shift, // LL is based on instruction operands.
+ kLL_I = 0x0u << kLL_Shift, // LL is ignored (LIG).
+ kLL_0 = 0x0u << kLL_Shift, // LL is 0 (L.128).
+ kLL_1 = 0x1u << kLL_Shift, // LL is 1 (L.256).
+ kLL_2 = 0x2u << kLL_Shift, // LL is 2 (L.512).
+
+ // Opcode Combinations
+ // -------------------
+
+ k0 = 0, // '__' (no prefix, used internally).
+ k000000 = kPP_00 | kMM_00, // '__' (no prefix, to be the same width as others).
+ k000F00 = kPP_00 | kMM_0F, // '0F'
+ k000F01 = kPP_00 | kMM_0F01, // '0F01'
+ k000F0F = kPP_00 | kMM_0F, // '0F0F' - 3DNOW, equal to 0x0F, must have special encoding to take effect.
+ k000F38 = kPP_00 | kMM_0F38, // '0F38'
+ k000F3A = kPP_00 | kMM_0F3A, // '0F3A'
+ k660000 = kPP_66 | kMM_00, // '66'
+ k660F00 = kPP_66 | kMM_0F, // '660F'
+ k660F01 = kPP_66 | kMM_0F01, // '660F01'
+ k660F38 = kPP_66 | kMM_0F38, // '660F38'
+ k660F3A = kPP_66 | kMM_0F3A, // '660F3A'
+ kF20000 = kPP_F2 | kMM_00, // 'F2'
+ kF20F00 = kPP_F2 | kMM_0F, // 'F20F'
+ kF20F01 = kPP_F2 | kMM_0F01, // 'F20F01'
+ kF20F38 = kPP_F2 | kMM_0F38, // 'F20F38'
+ kF20F3A = kPP_F2 | kMM_0F3A, // 'F20F3A'
+ kF30000 = kPP_F3 | kMM_00, // 'F3'
+ kF30F00 = kPP_F3 | kMM_0F, // 'F30F'
+ kF30F01 = kPP_F3 | kMM_0F01, // 'F30F01'
+ kF30F38 = kPP_F3 | kMM_0F38, // 'F30F38'
+ kF30F3A = kPP_F3 | kMM_0F3A, // 'F30F3A'
+ kFPU_00 = kPP_00 | kMM_00, // '__' (FPU)
+ kFPU_9B = kPP_9B | kMM_00, // '9B' (FPU)
+ kXOP_M8 = kPP_00 | kMM_XOP08, // 'M8' (XOP)
+ kXOP_M9 = kPP_00 | kMM_XOP09, // 'M9' (XOP)
+ kXOP_MA = kPP_00 | kMM_XOP0A // 'MA' (XOP)
+ };
+
+ // --------------------------------------------------------------------------
+ // [Opcode Builder]
+ // --------------------------------------------------------------------------
+
+ ASMJIT_INLINE uint32_t get() const noexcept { return v; }
+
+ ASMJIT_INLINE bool hasW() const noexcept { return (v & kW) != 0; }
+ ASMJIT_INLINE bool has66h() const noexcept { return (v & kPP_66) != 0; }
+
+ ASMJIT_INLINE Opcode& add(uint32_t x) noexcept { return operator+=(x); }
+
+ ASMJIT_INLINE Opcode& add66h() noexcept { return operator|=(kPP_66); }
+ template<typename T>
+ ASMJIT_INLINE Opcode& add66hIf(T exp) noexcept { return operator|=(uint32_t(exp) << kPP_Shift); }
+ template<typename T>
+ ASMJIT_INLINE Opcode& add66hBySize(T size) noexcept { return add66hIf(size == 2); }
+
+ ASMJIT_INLINE Opcode& addW() noexcept { return operator|=(kW); }
+ template<typename T>
+ ASMJIT_INLINE Opcode& addWIf(T exp) noexcept { return operator|=(uint32_t(exp) << kW_Shift); }
+ template<typename T>
+ ASMJIT_INLINE Opcode& addWBySize(T size) noexcept { return addWIf(size == 8); }
+
+ template<typename T>
+ ASMJIT_INLINE Opcode& addPrefixBySize(T size) noexcept {
+ static const uint32_t mask[16] = {
+ 0, // #0
+ 0, // #1 -> nothing (already handled or not possible)
+ kPP_66, // #2 -> 66H
+ 0, // #3
+ 0, // #4 -> nothing
+ 0, // #5
+ 0, // #6
+ 0, // #7
+ kW // #8 -> REX.W
+ };
+ return operator|=(mask[size & 0xF]);
+ }
+
+ template<typename T>
+ ASMJIT_INLINE Opcode& addArithBySize(T size) noexcept {
+ static const uint32_t mask[16] = {
+ 0, // #0
+ 0, // #1 -> nothing
+ 1 | kPP_66, // #2 -> NOT_BYTE_OP(1) and 66H
+ 0, // #3
+ 1, // #4 -> NOT_BYTE_OP(1)
+ 0, // #5
+ 0, // #6
+ 0, // #7
+ 1 | kW // #8 -> NOT_BYTE_OP(1) and REX.W
+ };
+ return operator|=(mask[size & 0xF]);
+ }
+
+ //! Extract `O` field (R) from the opcode (specified as /0..7 in instruction manuals).
+ ASMJIT_INLINE uint32_t extractModO() const noexcept {
+ return (v >> kModO_Shift) & 0x07;
+ }
+
+ //! Extract `RM` field (RM) from the opcode (usually specified as another opcode value).
+ ASMJIT_INLINE uint32_t extractModRM() const noexcept {
+ return (v >> kModRM_Shift) & 0x07;
+ }
+
+ //! Extract `REX` prefix from opcode combined with `options`.
+ ASMJIT_INLINE uint32_t extractRex(uint32_t options) const noexcept {
+ // kREX was designed in a way that when shifted there will be no bytes
+ // set except REX.[B|X|R|W]. The returned value forms a real REX prefix byte.
+ // This case should be unit-tested as well.
+ return (v | options) >> kREX_Shift;
+ }
+
+ ASMJIT_INLINE uint32_t extractLLMM(uint32_t options) const noexcept {
+ uint32_t x = v & (kLL_Mask | kMM_Mask);
+ uint32_t y = options & (Inst::kOptionVex3 | Inst::kOptionEvex);
+ return (x | y) >> kMM_Shift;
+ }
+
+ ASMJIT_INLINE Opcode& operator=(uint32_t x) noexcept { v = x; return *this; }
+ ASMJIT_INLINE Opcode& operator+=(uint32_t x) noexcept { v += x; return *this; }
+ ASMJIT_INLINE Opcode& operator-=(uint32_t x) noexcept { v -= x; return *this; }
+ ASMJIT_INLINE Opcode& operator&=(uint32_t x) noexcept { v &= x; return *this; }
+ ASMJIT_INLINE Opcode& operator|=(uint32_t x) noexcept { v |= x; return *this; }
+ ASMJIT_INLINE Opcode& operator^=(uint32_t x) noexcept { v ^= x; return *this; }
+
+ ASMJIT_INLINE uint32_t operator&(uint32_t x) const noexcept { return v & x; }
+ ASMJIT_INLINE uint32_t operator|(uint32_t x) const noexcept { return v | x; }
+ ASMJIT_INLINE uint32_t operator^(uint32_t x) const noexcept { return v ^ x; }
+ ASMJIT_INLINE uint32_t operator<<(uint32_t x) const noexcept { return v << x; }
+ ASMJIT_INLINE uint32_t operator>>(uint32_t x) const noexcept { return v >> x; }
+};
+
+//! \}
+//! \endcond
+
+ASMJIT_END_SUB_NAMESPACE
+
+#endif // ASMJIT_X86_X86OPCODE_P_H_INCLUDED