opcode

Documentation

Overview

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

Index

• func PackAPIIndexFunctionID(index uint8, id uint16) uint32
• type Add
  • func (c Add) Encode(w binary.Writer) error
  • func (c Add) String() string
• type Call
  • func (c Call) Encode(w binary.Writer) error
  • func (c Call) String() string
• type Clone
  • func (c Clone) Encode(w binary.Writer) error
  • func (c Clone) String() string
• type Copy
  • func (c Copy) Encode(w binary.Writer) error
  • func (c Copy) String() string
• type Extend
  • func (c Extend) Encode(w binary.Writer) error
  • func (c Extend) String() string
• type JumpLabel
  • func (c JumpLabel) Encode(w binary.Writer) error
  • func (c JumpLabel) String() string
• type JumpNZ
  • func (c JumpNZ) Encode(w binary.Writer) error
  • func (c JumpNZ) String() string
• type Label
  • func (c Label) Encode(w binary.Writer) error
  • func (c Label) String() string
• type Load
  • func (c Load) Encode(w binary.Writer) error
  • func (c Load) String() string
• type LoadC
  • func (c LoadC) Encode(w binary.Writer) error
  • func (c LoadC) String() string
• type LoadV
  • func (c LoadV) Encode(w binary.Writer) error
  • func (c LoadV) String() string
• type Notification
  • func (c Notification) Encode(w binary.Writer) error
  • func (c Notification) String() string
• type Opcode
  • func Decode(r binary.Reader) (Opcode, error)
  • func Disassemble(r io.Reader, byteOrder device.Endian) ([]Opcode, error)
• type Pop
  • func (c Pop) Encode(w binary.Writer) error
  • func (c Pop) String() string
• type Post
  • func (c Post) Encode(w binary.Writer) error
  • func (c Post) String() string
• type PushI
  • func (c PushI) Encode(w binary.Writer) error
  • func (c PushI) String() string
• type Resource
  • func (c Resource) Encode(w binary.Writer) error
  • func (c Resource) String() string
• type Store
  • func (c Store) Encode(w binary.Writer) error
  • func (c Store) String() string
• type StoreV
  • func (c StoreV) Encode(w binary.Writer) error
  • func (c StoreV) String() string
• type Strcpy
  • func (c Strcpy) Encode(w binary.Writer) error
  • func (c Strcpy) String() string
• type SwitchThread
  • func (c SwitchThread) Encode(w binary.Writer) error
  • func (c SwitchThread) String() string

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 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 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