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Index ⭢ Assembler ⭢ asmjit::OperandSignature

asmjit::OperandSignature Struct Reference

Operand signature is a 32-bit number describing Operand and some of its payload.

In AsmJit operand signature is used to store additional payload of register, memory, and immediate operands. In practice the biggest pressure on OperandSignature is from BaseMem and architecture specific memory operands that need to store additional payload that cannot be stored elsewhere as values of all other members are fully specified by BaseMem.

Public Members

Members

uint32_t _bits

Static Public Attributes

Constants

static constexpr uint32_t kOpTypeShift = 0

static constexpr uint32_t kOpTypeMask = 0x07u<<kOpTypeShift

static constexpr uint32_t kRegTypeShift = 3

static constexpr uint32_t kRegTypeMask = 0x1Fu<<kRegTypeShift

static constexpr uint32_t kRegGroupShift = 8

static constexpr uint32_t kRegGroupMask = 0x0Fu<<kRegGroupShift

static constexpr uint32_t kMemBaseTypeShift = 3

static constexpr uint32_t kMemBaseTypeMask = 0x1Fu<<kMemBaseTypeShift

static constexpr uint32_t kMemIndexTypeShift = 8

static constexpr uint32_t kMemIndexTypeMask = 0x1Fu<<kMemIndexTypeShift

static constexpr uint32_t kMemBaseIndexShift = 3

static constexpr uint32_t kMemBaseIndexMask = 0x3FFu<<kMemBaseIndexShift

static constexpr uint32_t kMemRegHomeShift = 13

static constexpr uint32_t kMemRegHomeFlag = 0x01u<<kMemRegHomeShift

static constexpr uint32_t kImmTypeShift = 3

static constexpr uint32_t kImmTypeMask = 0x01u<<kImmTypeShift

static constexpr uint32_t kPredicateShift = 20

static constexpr uint32_t kPredicateMask = 0x0Fu<<kPredicateShift

static constexpr uint32_t kSizeShift = 24

static constexpr uint32_t kSizeMask = 0xFFu<<kSizeShift

Member Functions

Overloaded Operators

Overloaded operators make OperandSignature behave like regular integer.

constexpr bool operator!() const noexcept

constexpr operator bool() const noexcept

constexpr OperandSignature& operator| = (uint32_t x) noexcept

constexpr OperandSignature& operator& = (uint32_t x) noexcept

constexpr OperandSignature& operator^ = (uint32_t x) noexcept

constexpr OperandSignature& operator| = (const OperandSignature& other) noexcept

constexpr OperandSignature& operator& = (const OperandSignature& other) noexcept

constexpr OperandSignature& operator^ = (const OperandSignature& other) noexcept

constexpr OperandSignature operator~() const noexcept

constexpr OperandSignature operator|(uint32_t x) const noexcept

constexpr OperandSignature operator&(uint32_t x) const noexcept

constexpr OperandSignature operator^(uint32_t x) const noexcept

constexpr OperandSignature operator|(const OperandSignature& other) const noexcept

constexpr OperandSignature operator&(const OperandSignature& other) const noexcept

constexpr OperandSignature operator^(const OperandSignature& other) const noexcept

constexpr bool operator==(uint32_t x) const noexcept

constexpr bool operator!=(uint32_t x) const noexcept

constexpr bool operator==(const OperandSignature& other) const noexcept

constexpr bool operator!=(const OperandSignature& other) const noexcept

Accessors

constexpr void reset() noexcept

constexpr uint32_t bits() const noexcept

constexpr void setBits(uint32_t bits) noexcept

template<uint32_t kFieldMask>

constexpr bool hasField() const noexcept

template<uint32_t kFieldMask>

constexpr bool hasField(uint32_t value) const noexcept

template<uint32_t kFieldMask>

constexpr uint32_t getField() const noexcept

template<uint32_t kFieldMask>

constexpr void setField(uint32_t value) noexcept

constexpr OperandSignature subset(uint32_t mask) const noexcept

template<uint32_t kFieldMask, uint32_t kFieldShift = Support::ConstCTZ<kFieldMask>::value>

constexpr OperandSignature replacedValue(uint32_t value) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesSignature(const OperandSignature& signature) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesFields(uint32_t bits) const noexcept

template<uint32_t kFieldMask>

constexpr bool matchesFields(const OperandSignature& fields) const noexcept

constexpr bool isValid() const noexcept

constexpr OperandType opType() const noexcept

constexpr RegType regType() const noexcept

constexpr RegGroup regGroup() const noexcept

constexpr RegType memBaseType() const noexcept

constexpr RegType memIndexType() const noexcept

constexpr uint32_t predicate() const noexcept

constexpr uint32_t size() const noexcept

constexpr void setOpType(OperandType opType) noexcept

constexpr void setRegType(RegType regType) noexcept

constexpr void setRegGroup(RegGroup regGroup) noexcept

constexpr void setMemBaseType(RegType baseType) noexcept

constexpr void setMemIndexType(RegType indexType) noexcept

constexpr void setPredicate(uint32_t predicate) noexcept

constexpr void setSize(uint32_t size) noexcept

Static Functions

Static Constructors

static constexpr OperandSignature fromBits(uint32_t bits) noexcept

template<uint32_t kFieldMask, typename T>

static constexpr OperandSignature fromValue(const T& value) noexcept

static constexpr OperandSignature fromOpType(OperandType opType) noexcept

static constexpr OperandSignature fromRegType(RegType regType) noexcept

static constexpr OperandSignature fromRegGroup(RegGroup regGroup) noexcept

static constexpr OperandSignature fromRegTypeAndGroup(RegType regType, RegGroup regGroup) noexcept

static constexpr OperandSignature fromMemBaseType(RegType baseType) noexcept

static constexpr OperandSignature fromMemIndexType(RegType indexType) noexcept

static constexpr OperandSignature fromPredicate(uint32_t predicate) noexcept

static constexpr OperandSignature fromSize(uint32_t size) noexcept

bool OperandSignature::isValid() constconstexprnoexcept

Tests whether the operand signature is valid (describes a valid operand, and not OperandType::kNone.

OperandType OperandSignature::opType() constconstexprnoexcept

Returns operand type this operand signature describes.

OperandSignature OperandSignature::fromBits(

uint32_t bits

)constexprstaticnoexcept

Constructs operand signature from the given bits.

template<uint32_t kFieldMask, typename T>

OperandSignature OperandSignature::fromValue(

const T& value

)constexprstaticnoexcept

Constructs operand signature from the given value, use kFieldMask to describe where the value is in the signature.

OperandSignature OperandSignature::fromOpType(

OperandType opType

)constexprstaticnoexcept

Constructs operand signature describing the given operand type opType.

OperandSignature OperandSignature::fromRegType(

RegType regType

)constexprstaticnoexcept

Constructs operand signature describing the given register type regType.

OperandSignature OperandSignature::fromRegGroup(

RegGroup regGroup

)constexprstaticnoexcept

Constructs operand signature describing the given register group regGroup.

OperandSignature OperandSignature::fromRegTypeAndGroup(

RegType regType,

RegGroup regGroup

)constexprstaticnoexcept

Constructs operand signature describing both register type regType and register group regGroup.

OperandSignature OperandSignature::fromMemBaseType(

RegType baseType

)constexprstaticnoexcept

Constructs operand signature describing a memory base type baseType.

OperandSignature OperandSignature::fromMemIndexType(

RegType indexType

)constexprstaticnoexcept

Constructs operand signature describing a memory index type indexType.

OperandSignature OperandSignature::fromPredicate(

uint32_t predicate

)constexprstaticnoexcept

Constructs operand signature describing a predicate.

OperandSignature OperandSignature::fromSize(

uint32_t size

)constexprstaticnoexcept

Constructs operand signature describing a size.

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