mipsevm

type Addresses struct {
	MIPS         common.Address
	Oracle       common.Address
	Sender       common.Address
	FeeRecipient common.Address
}

type CachedPage struct {
	Data *Page
	// intermediate nodes only
	Cache [PageSize / 32][32]byte
	// true if the intermediate node is valid
	Ok [PageSize / 32]bool
}

type Contract struct {
	DeployedBytecode struct {
		Object    hexutil.Bytes `json:"object"`
		SourceMap string        `json:"sourceMap"`
	} `json:"deployedBytecode"`
}

type Contracts struct {
	MIPS   *Contract
	Oracle *Contract
}

type HexU32 uint32

type InstrMapping struct {
	S int32 // start offset in bytes within source (negative when non-existent!)
	L int32 // length in bytes within source (negative when non-existent!)
	F int32 // file index of source (negative when non-existent!)
	J byte  // jump type (i=into, o=out, -=regular)
	M int32 // modifier depth
}

type InstrumentedState struct {
	// contains filtered or unexported fields
}

type LineCol struct {
	Line uint32
	Col  uint32
}

type LoggingWriter struct {
	Name string
	Log  log.Logger
}

type Memory struct {
	// contains filtered or unexported fields
}

type Metadata struct {
	Symbols []Symbol `json:"symbols"`
}

type Page [PageSize]byte

type PreimageOracle interface {
	Hint(v []byte)
	GetPreimage(k [32]byte) []byte
}

type SourceMap struct {
	// source names
	Sources []string
	// per source, source offset -> line/col
	PosData [][]LineCol
	// per bytecode byte, byte index -> instr
	Instr []InstrMapping
}

type SourceMapTracer struct {
	// contains filtered or unexported fields
}

type State struct {
	Memory *Memory `json:"memory"`

	PreimageKey    common.Hash `json:"preimageKey"`
	PreimageOffset uint32      `json:"preimageOffset"` // note that the offset includes the 8-byte length prefix

	PC     uint32 `json:"pc"`
	NextPC uint32 `json:"nextPC"`
	LO     uint32 `json:"lo"`
	HI     uint32 `json:"hi"`
	Heap   uint32 `json:"heap"` // to handle mmap growth

	ExitCode uint8 `json:"exit"`
	Exited   bool  `json:"exited"`

	Step uint64 `json:"step"`

	Registers [32]uint32 `json:"registers"`

	// LastHint is optional metadata, and not part of the VM state itself.
	// It is used to remember the last pre-image hint,
	// so a VM can start from any state without fetching prior pre-images,
	// and instead just repeat the last hint on setup,
	// to make sure pre-image requests can be served.
	// The first 4 bytes are a uin32 length prefix.
	// Warning: the hint MAY NOT BE COMPLETE. I.e. this is buffered,
	// and should only be read when len(LastHint) > 4 && uint32(LastHint[:4]) >= len(LastHint[4:])
	LastHint hexutil.Bytes `json:"lastHint,omitempty"`
}

type StepWitness struct {
	// encoded state witness
	State []byte

	MemProof []byte

	PreimageKey    [32]byte // zeroed when no pre-image is accessed
	PreimageValue  []byte   // including the 8-byte length prefix
	PreimageOffset uint32
}

type Symbol struct {
	Name  string `json:"name"`
	Start uint32 `json:"start"`
	Size  uint32 `json:"size"`
}