AsmJit
Low-Latency Machine Code Generation
asmjit::x86::Mem Class Reference [¶]
Inheritance diagram for asmjit::x86::Mem:
Memory operand specific to X86 and X86_64 architecture.
Public Types
Constants
enum AdditionalBits : uint32_t
enum class AddrType : uint32_t
enum class Broadcast : uint32_t
Public Types inherited from asmjit::Operand_Member Functions
Construction & Destruction
constexpr Mem(const Signature& signature, uint32_t baseId, uint32_t indexId, int32_t offset) noexcept
constexpr Mem(const Label& base, int32_t off, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
constexpr Mem(const Label& base, const BaseReg& index, uint32_t shift, int32_t off, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
constexpr Mem(const BaseReg& base, int32_t off, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
constexpr Mem(const BaseReg& base, const BaseReg& index, uint32_t shift, int32_t off, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
constexpr Mem(uint64_t base, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
constexpr Mem(uint64_t base, const BaseReg& index, uint32_t shift = 0, uint32_t size = 0, Signature signature = OperandSignature {0}) noexcept
Overloaded Operators
Clone
Base & Index
Memory Size
Address Type
Segment
Shift
Broadcast
Public Member Functions inherited from asmjit::BaseMem Public Member Functions inherited from asmjit::Operand Public Member Functions inherited from asmjit::Operand_Additional Inherited Members
Public Attributes inherited from asmjit::Operand_ Static Public Member Functions inherited from asmjit::Operand_x86::Mem::AdditionalBits : uint32_tenum[¶]
Additional bits of operand's signature used by x86::Mem.
class x86::Mem::AddrType : uint32_tenumstrong[¶]
class x86::Mem::Broadcast : uint32_tenumstrong[¶]
x86::Mem::Mem()constexprnoexcept[¶]
Creates a default Mem operand that points to [0].
Mem x86::Mem::cloneAdjusted(int64_t off) constnoexcept[¶]
Creates a copy of this memory operand adjusted by off.
Mem x86::Mem::cloneResized(uint32_t size) constnoexcept[¶]
Creates a copy of this memory operand resized to size.
Mem x86::Mem::cloneBroadcasted(Broadcast bcst) constconstexprnoexcept[¶]
Creates a copy of this memory operand with a broadcast bcst.
Reg x86::Mem::baseReg() constnoexcept[¶]
Converts memory baseType and baseId to x86::Reg instance.
The memory must have a valid base register otherwise the result will be wrong.
Reg x86::Mem::indexReg() constnoexcept[¶]
Converts memory indexType and indexId to x86::Reg instance.
The memory must have a valid index register otherwise the result will be wrong.
bool x86::Mem::hasSize() constconstexprnoexcept[1/2][¶]
Tests whether the memory operand specifies a size (i.e. the size is not zero).
bool x86::Mem::hasSize(uint32_t s) constconstexprnoexcept[2/2][¶]
Tests whether the memory operand size matches size s.
uint32_t x86::Mem::size() constconstexprnoexcept[¶]
Returns the size of the memory operand in bytes.
- Note
- Most instructions would deduce the size of the memory operand, so in most cases it's expected that the returned value would be zero. However, some instruction require the size to select between multiple variations, so in some cases size is required would be non-zero (for example
inc [mem], immediaterequires size to distinguish between 8-bit, 16-bit, 32-bit, and 64-bit increments.
void x86::Mem::setSize(uint32_t size)noexcept[¶]
Sets the memory operand size (in bytes).
AddrType x86::Mem::addrType() constconstexprnoexcept[¶]
Returns the address type of the memory operand.
By default, address type of newly created memory operands is always AddrType::kDefault.
void x86::Mem::resetAddrType()noexcept[¶]
Resets the address type to AddrType::kDefault.
bool x86::Mem::isAbs() constconstexprnoexcept[¶]
Tests whether the address type is AddrType::kAbs.
void x86::Mem::setAbs()noexcept[¶]
Sets the address type to AddrType::kAbs.
bool x86::Mem::isRel() constconstexprnoexcept[¶]
Tests whether the address type is AddrType::kRel.
void x86::Mem::setRel()noexcept[¶]
Sets the address type to AddrType::kRel.
bool x86::Mem::hasSegment() constconstexprnoexcept[¶]
Tests whether the memory operand has a segment override.
SReg x86::Mem::segment() constconstexprnoexcept[¶]
Returns the associated segment override as SReg operand.
uint32_t x86::Mem::segmentId() constconstexprnoexcept[¶]
Returns segment override register id, see SReg::Id.
void x86::Mem::setSegment(uint32_t rId)noexcept[2/2][¶]
Sets the segment override to id.
void x86::Mem::resetSegment()noexcept[¶]
Resets the segment override.
bool x86::Mem::hasShift() constconstexprnoexcept[¶]
Tests whether the memory operand has shift (aka scale) value.
uint32_t x86::Mem::shift() constconstexprnoexcept[¶]
Returns the memory operand's shift (aka scale) value.
void x86::Mem::setShift(uint32_t shift)noexcept[¶]
Sets the memory operand's shift (aka scale) value.
void x86::Mem::resetShift()noexcept[¶]
Resets the memory operand's shift (aka scale) value to zero.
bool x86::Mem::hasBroadcast() constconstexprnoexcept[¶]
Tests whether the memory operand has broadcast {1tox}.
Broadcast x86::Mem::getBroadcast() constconstexprnoexcept[¶]
Returns the memory operand's broadcast.
void x86::Mem::resetBroadcast()noexcept[¶]
Resets the memory operand's broadcast to none.
Mem x86::Mem::_1to1() constconstexprnoexcept[¶]
Returns a new Mem without a broadcast (the possible broadcast is cleared).
Mem x86::Mem::_1to16() constconstexprnoexcept[¶]
Returns a new Mem with {1to16} broadcast (AVX-512).
Mem x86::Mem::_1to32() constconstexprnoexcept[¶]
Returns a new Mem with {1to32} broadcast (AVX-512).