opcode

package
v0.0.0-...-15b4445 Latest Latest
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 Go to latest Published: Jun 6, 2022 License: Apache-2.0 Imports: 8 Imported by: 0

Documentation

Overview

Package opcode holds all the opcodes that are to be interpreted by the replay virtual machine.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func PackAPIIndexFunctionID 

func PackAPIIndexFunctionID(index uint8, id uint16) uint32

PackAPIIndexFunctionID packs the API index and the function ID together.

Types

type Add 

type Add struct {
	Count uint32 // Number of top value stack elements to pop and sum.
}

Add represents the ADD virtual machine opcode.

func (Add) Encode 

func (c Add) Encode(w binary.Writer) error

func (Add) String 

func (c Add) String() string

type Call 

type Call struct {
	PushReturn bool   // Should the return value be pushed onto the stack?
	ApiIndex   uint8  // The index of the API this call belongs to.
	FunctionID uint16 // The function identifier to call.
}

Call represents the CALL virtual machine opcode.

func (Call) Encode 

func (c Call) Encode(w binary.Writer) error

func (Call) String 

func (c Call) String() string

type Clone 

type Clone struct {
	Index uint32 // Index of element from top of stack to clone.
}

Clone represents the CLONE virtual machine opcode.

func (Clone) Encode 

func (c Clone) Encode(w binary.Writer) error

func (Clone) String 

func (c Clone) String() string

type Copy 

type Copy struct {
	Count uint32 // Number of bytes to copy.
}

Copy represents the COPY virtual machine opcode.

func (Copy) Encode 

func (c Copy) Encode(w binary.Writer) error

func (Copy) String 

func (c Copy) String() string

type Extend 

type Extend struct {
	Value uint32 // 26 bit value to extend the top of the stack by.
}

Extend represents the EXTEND virtual machine opcode.

func (Extend) Encode 

func (c Extend) Encode(w binary.Writer) error

func (Extend) String 

func (c Extend) String() string

type InlineResource 

type InlineResource struct {
	Data            []uint32
	DataSize        uint32
	ValuePatchUps   []InlineResourceValuePatchUp
	PointerPatchUps []InlineResourcePointerPatchUp
	Resolver        value.PointerResolver
	Ctx             context.Context
}

Resource represents the RESOURCE virtual machine opcode.

func DecodeInlineResource 

func DecodeInlineResource(opcode uint32, reader binary.Reader) InlineResource

func (InlineResource) Encode 

func (c InlineResource) Encode(w binary.Writer) error

func (InlineResource) String 

func (c InlineResource) String() string

type InlineResourcePointerPatchUp 

type InlineResourcePointerPatchUp struct {
	Destination value.Pointer
	Source      value.Value
}

type InlineResourceValuePatchUp 

type InlineResourceValuePatchUp struct {
	Destination value.Pointer
	Value       value.Value
}

type JumpLabel 

type JumpLabel struct {
	Label uint32 // 26 bit jump label.
}

JumpLabel represents the JumpLabel virtual machine opcode.

func (JumpLabel) Encode 

func (c JumpLabel) Encode(w binary.Writer) error

func (JumpLabel) String 

func (c JumpLabel) String() string

type JumpNZ 

type JumpNZ struct {
	Label uint32 // 26 bit jump label.
}

JumpNZ represents the JumpNZ virtual machine opcode.

func (JumpNZ) Encode 

func (c JumpNZ) Encode(w binary.Writer) error

func (JumpNZ) String 

func (c JumpNZ) String() string

type JumpZ 

type JumpZ struct {
	Label uint32 // 26 bit jump label.
}

JumpZ represents the JumpZ virtual machine opcode.

func (JumpZ) Encode 

func (c JumpZ) Encode(w binary.Writer) error

func (JumpZ) String 

func (c JumpZ) String() string

type Label 

type Label struct {
	Value uint32 // 26 bit label name.
}

Label represents the LABEL virtual machine opcode.

func (Label) Encode 

func (c Label) Encode(w binary.Writer) error

func (Label) String 

func (c Label) String() string

type Load 

type Load struct {
	DataType protocol.Type // The value types to load.
}

Load represents the LOAD virtual machine opcode.

func (Load) Encode 

func (c Load) Encode(w binary.Writer) error

func (Load) String 

func (c Load) String() string

type LoadC 

type LoadC struct {
	DataType protocol.Type // The value type to load.
	Address  uint32        // The pointer to the value in constant address-space.
}

LoadC represents the LOAD_C virtual machine opcode.

func (LoadC) Encode 

func (c LoadC) Encode(w binary.Writer) error

func (LoadC) String 

func (c LoadC) String() string

type LoadV 

type LoadV struct {
	DataType protocol.Type // The value type to load.
	Address  uint32        // The pointer to the value in volatile address-space.
}

LoadV represents the LOAD_V virtual machine opcode.

func (LoadV) Encode 

func (c LoadV) Encode(w binary.Writer) error

func (LoadV) String 

func (c LoadV) String() string

type Notification 

type Notification struct{}

Notification represents the NOTIFICATION virtual machine opcode.

func (Notification) Encode 

func (c Notification) Encode(w binary.Writer) error

func (Notification) String 

func (c Notification) String() string

type Opcode 

type Opcode interface {
	// contains filtered or unexported methods
}

Opcode represents a single opcode used by GAPIR.

func Decode 

func Decode(r binary.Reader) (Opcode, error)

Decode returns the opcode decoded from decoder d.

func Disassemble 

func Disassemble(r io.Reader, byteOrder device.Endian) ([]Opcode, error)

Disassemble disassembles and returns the stream of encoded Opcodes from r, stopping once an EOF is reached.

type Pop 

type Pop struct {
	Count uint32 // Number of elements to pop from the top of the stack.
}

Pop represents the POP virtual machine opcode.

func (Pop) Encode 

func (c Pop) Encode(w binary.Writer) error

func (Pop) String 

func (c Pop) String() string

type Post 

type Post struct{}

Post represents the POST virtual machine opcode.

func (Post) Encode 

func (c Post) Encode(w binary.Writer) error

func (Post) String 

func (c Post) String() string

type PushI 

type PushI struct {
	DataType protocol.Type // The value type to push.
	Value    uint32        // The value to push packed into the low 20 bits.
}

PushI represents the PUSH_I virtual machine opcode.

func (PushI) Encode 

func (c PushI) Encode(w binary.Writer) error

func (PushI) String 

func (c PushI) String() string

type Resource 

type Resource struct {
	ID uint32 // The index of the resource identifier.
}

Resource represents the RESOURCE virtual machine opcode.

func (Resource) Encode 

func (c Resource) Encode(w binary.Writer) error

func (Resource) String 

func (c Resource) String() string

type Store 

type Store struct{}

Store represents the STORE virtual machine opcode.

func (Store) Encode 

func (c Store) Encode(w binary.Writer) error

func (Store) String 

func (c Store) String() string

type StoreV 

type StoreV struct {
	Address uint32 // Pointer in volatile address-space.
}

StoreV represents the STORE_V virtual machine opcode.

func (StoreV) Encode 

func (c StoreV) Encode(w binary.Writer) error

func (StoreV) String 

func (c StoreV) String() string

type Strcpy 

type Strcpy struct {
	MaxSize uint32 // Maximum size in bytes to copy.
}

Strcpy represents the STRCPY virtual machine opcode.

func (Strcpy) Encode 

func (c Strcpy) Encode(w binary.Writer) error

func (Strcpy) String 

func (c Strcpy) String() string

type SwitchThread 

type SwitchThread struct {
	Index uint32 // 26 bit thread index.
}

SwitchThread represents the SwitchThread virtual machine opcode.

func (SwitchThread) Encode 

func (c SwitchThread) Encode(w binary.Writer) error

func (SwitchThread) String 

func (c SwitchThread) String() string

type TrivialPointer 

type TrivialPointer struct {
	Value uint32
}

func (TrivialPointer) Get 

func (t TrivialPointer) Get(value.PointerResolver) (ty protocol.Type, val uint64, onStack bool)

func (TrivialPointer) IsValid 

func (t TrivialPointer) IsValid() bool

func (TrivialPointer) Offset 

func (t TrivialPointer) Offset(v uint64) value.Pointer

type TrivialPointerResolver 

type TrivialPointerResolver struct{}

func (TrivialPointerResolver) ResolveObservedPointer 

func (r TrivialPointerResolver) ResolveObservedPointer(value.ObservedPointer) (protocol.Type, uint64)

func (TrivialPointerResolver) ResolvePointerIndex 

func (r TrivialPointerResolver) ResolvePointerIndex(value.PointerIndex) (protocol.Type, uint64)

func (TrivialPointerResolver) ResolveTemporaryPointer 

func (r TrivialPointerResolver) ResolveTemporaryPointer(value.TemporaryPointer) value.VolatilePointer

type TrivialValue 

type TrivialValue struct {
	Value uint32
}

func (TrivialValue) Get 

func (t TrivialValue) Get(value.PointerResolver) (ty protocol.Type, val uint64, onStack bool)

type Wait 

type Wait struct {
	ID uint32 // 26 bit fence ID.
}

Wait represents the Wait virtual machine opcode.

func (Wait) Encode 

func (c Wait) Encode(w binary.Writer) error

func (Wait) String 

func (c Wait) String() string

Source Files

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