opcode

Documentation

Index

• func IsValid(op Opcode) bool
• type Opcode
  • func FromString(s string) (Opcode, error)
  • func (i Opcode) String() string

Functions

func IsValid

func IsValid(op Opcode) bool

IsValid returns true if the opcode passed is valid (defined in the VM).

Types

type Opcode

type Opcode byte

Opcode represents a single operation code for the NEO virtual machine.

const (
	// Constants.
	PUSHINT8   Opcode = 0x00
	PUSHINT16  Opcode = 0x01
	PUSHINT32  Opcode = 0x02
	PUSHINT64  Opcode = 0x03
	PUSHINT128 Opcode = 0x04
	PUSHINT256 Opcode = 0x05

	PUSHA    Opcode = 0x0A
	PUSHNULL Opcode = 0x0B

	PUSHDATA1 Opcode = 0x0C
	PUSHDATA2 Opcode = 0x0D
	PUSHDATA4 Opcode = 0x0E

	PUSHM1 Opcode = 0x0F
	PUSH0  Opcode = 0x10
	PUSHF  Opcode = PUSH0
	PUSH1  Opcode = 0x11
	PUSHT  Opcode = PUSH1
	PUSH2  Opcode = 0x12
	PUSH3  Opcode = 0x13
	PUSH4  Opcode = 0x14
	PUSH5  Opcode = 0x15
	PUSH6  Opcode = 0x16
	PUSH7  Opcode = 0x17
	PUSH8  Opcode = 0x18
	PUSH9  Opcode = 0x19
	PUSH10 Opcode = 0x1A
	PUSH11 Opcode = 0x1B
	PUSH12 Opcode = 0x1C
	PUSH13 Opcode = 0x1D
	PUSH14 Opcode = 0x1E
	PUSH15 Opcode = 0x1F
	PUSH16 Opcode = 0x20

	// Flow control.
	NOP       Opcode = 0x21
	JMP       Opcode = 0x22
	JMPL      Opcode = 0x23 // JMP_L
	JMPIF     Opcode = 0x24
	JMPIFL    Opcode = 0x25 // JMPIF_L
	JMPIFNOT  Opcode = 0x26
	JMPIFNOTL Opcode = 0x27 // JMPIFNOT_L
	JMPEQ     Opcode = 0x28
	JMPEQL    Opcode = 0x29 // JMPEQ_L
	JMPNE     Opcode = 0x2A
	JMPNEL    Opcode = 0x2B // JMPNE_L
	JMPGT     Opcode = 0x2C
	JMPGTL    Opcode = 0x2D // JMPGT_L
	JMPGE     Opcode = 0x2E
	JMPGEL    Opcode = 0x2F // JMPGE_L
	JMPLT     Opcode = 0x30
	JMPLTL    Opcode = 0x31 // JMPLT_L
	JMPLE     Opcode = 0x32
	JMPLEL    Opcode = 0x33 // JMPLE_L
	CALL      Opcode = 0x34
	CALLL     Opcode = 0x35 // CALL_L
	CALLA     Opcode = 0x36
	CALLT     Opcode = 0x37

	// Exceptions.
	ABORT      Opcode = 0x38
	ASSERT     Opcode = 0x39
	THROW      Opcode = 0x3A
	TRY        Opcode = 0x3B
	TRYL       Opcode = 0x3C // TRY_L
	ENDTRY     Opcode = 0x3D
	ENDTRYL    Opcode = 0x3E // ENDTRY_L
	ENDFINALLY Opcode = 0x3F

	RET     Opcode = 0x40
	SYSCALL Opcode = 0x41

	// Stack.
	DEPTH    Opcode = 0x43
	DROP     Opcode = 0x45
	NIP      Opcode = 0x46
	XDROP    Opcode = 0x48
	CLEAR    Opcode = 0x49
	DUP      Opcode = 0x4A
	OVER     Opcode = 0x4B
	PICK     Opcode = 0x4D
	TUCK     Opcode = 0x4E
	SWAP     Opcode = 0x50
	ROT      Opcode = 0x51
	ROLL     Opcode = 0x52
	REVERSE3 Opcode = 0x53
	REVERSE4 Opcode = 0x54
	REVERSEN Opcode = 0x55

	// Slots.
	INITSSLOT Opcode = 0x56
	INITSLOT  Opcode = 0x57
	LDSFLD0   Opcode = 0x58
	LDSFLD1   Opcode = 0x59
	LDSFLD2   Opcode = 0x5A
	LDSFLD3   Opcode = 0x5B
	LDSFLD4   Opcode = 0x5C
	LDSFLD5   Opcode = 0x5D
	LDSFLD6   Opcode = 0x5E
	LDSFLD    Opcode = 0x5F
	STSFLD0   Opcode = 0x60
	STSFLD1   Opcode = 0x61
	STSFLD2   Opcode = 0x62
	STSFLD3   Opcode = 0x63
	STSFLD4   Opcode = 0x64
	STSFLD5   Opcode = 0x65
	STSFLD6   Opcode = 0x66
	STSFLD    Opcode = 0x67
	LDLOC0    Opcode = 0x68
	LDLOC1    Opcode = 0x69
	LDLOC2    Opcode = 0x6A
	LDLOC3    Opcode = 0x6B
	LDLOC4    Opcode = 0x6C
	LDLOC5    Opcode = 0x6D
	LDLOC6    Opcode = 0x6E
	LDLOC     Opcode = 0x6F
	STLOC0    Opcode = 0x70
	STLOC1    Opcode = 0x71
	STLOC2    Opcode = 0x72
	STLOC3    Opcode = 0x73
	STLOC4    Opcode = 0x74
	STLOC5    Opcode = 0x75
	STLOC6    Opcode = 0x76
	STLOC     Opcode = 0x77
	LDARG0    Opcode = 0x78
	LDARG1    Opcode = 0x79
	LDARG2    Opcode = 0x7A
	LDARG3    Opcode = 0x7B
	LDARG4    Opcode = 0x7C
	LDARG5    Opcode = 0x7D
	LDARG6    Opcode = 0x7E
	LDARG     Opcode = 0x7F
	STARG0    Opcode = 0x80
	STARG1    Opcode = 0x81
	STARG2    Opcode = 0x82
	STARG3    Opcode = 0x83
	STARG4    Opcode = 0x84
	STARG5    Opcode = 0x85
	STARG6    Opcode = 0x86
	STARG     Opcode = 0x87

	// Splice.
	NEWBUFFER Opcode = 0x88
	MEMCPY    Opcode = 0x89
	CAT       Opcode = 0x8B
	SUBSTR    Opcode = 0x8C
	LEFT      Opcode = 0x8D
	RIGHT     Opcode = 0x8E

	// Bitwise logic.
	INVERT   Opcode = 0x90
	AND      Opcode = 0x91
	OR       Opcode = 0x92
	XOR      Opcode = 0x93
	EQUAL    Opcode = 0x97
	NOTEQUAL Opcode = 0x98

	// Arithmetic.
	SIGN        Opcode = 0x99
	ABS         Opcode = 0x9A
	NEGATE      Opcode = 0x9B
	INC         Opcode = 0x9C
	DEC         Opcode = 0x9D
	ADD         Opcode = 0x9E
	SUB         Opcode = 0x9F
	MUL         Opcode = 0xA0
	DIV         Opcode = 0xA1
	MOD         Opcode = 0xA2
	POW         Opcode = 0xA3
	SQRT        Opcode = 0xA4
	SHL         Opcode = 0xA8
	SHR         Opcode = 0xA9
	NOT         Opcode = 0xAA
	BOOLAND     Opcode = 0xAB
	BOOLOR      Opcode = 0xAC
	NZ          Opcode = 0xB1
	NUMEQUAL    Opcode = 0xB3
	NUMNOTEQUAL Opcode = 0xB4
	LT          Opcode = 0xB5
	LE          Opcode = 0xB6
	GT          Opcode = 0xB7
	GE          Opcode = 0xB8
	MIN         Opcode = 0xB9
	MAX         Opcode = 0xBA
	WITHIN      Opcode = 0xBB

	// Advanced data structures (arrays, structures, maps).
	PACK         Opcode = 0xC0
	UNPACK       Opcode = 0xC1
	NEWARRAY0    Opcode = 0xC2
	NEWARRAY     Opcode = 0xC3
	NEWARRAYT    Opcode = 0xC4 // NEWARRAY_T
	NEWSTRUCT0   Opcode = 0xC5
	NEWSTRUCT    Opcode = 0xC6
	NEWMAP       Opcode = 0xC8
	SIZE         Opcode = 0xCA
	HASKEY       Opcode = 0xCB
	KEYS         Opcode = 0xCC
	VALUES       Opcode = 0xCD
	PICKITEM     Opcode = 0xCE
	APPEND       Opcode = 0xCF
	SETITEM      Opcode = 0xD0
	REVERSEITEMS Opcode = 0xD1
	REMOVE       Opcode = 0xD2
	CLEARITEMS   Opcode = 0xD3
	POPITEM      Opcode = 0xD4

	// Types.
	ISNULL  Opcode = 0xD8
	ISTYPE  Opcode = 0xD9
	CONVERT Opcode = 0xDB
)

Viable list of supported instruction constants.

func FromString

func FromString(s string) (Opcode, error)

FromString converts string representation to and opcode itself.

func (Opcode) String

func (i Opcode) String() string