Arithmetic

code/code.go

@@ -13,6 +13,10 @@ type Opcode byte
 const (
 	OpConstant Opcode = iota
 	OpAdd
+	OpPop
+	OpSub
+	OpMul
+	OpDiv
 )
 
 type Definition struct {
@@ -23,6 +27,10 @@ type Definition struct {
 var definitions = map[Opcode]*Definition{
 	OpConstant: {"OpConstant", []int{2}},
 	OpAdd:      {"OpAdd", []int{}},
+	OpPop:      {"OpPop", []int{}},
+	OpSub:      {"OpSub", []int{}},
+	OpMul:      {"OpMul", []int{}},
+	OpDiv:      {"OpDiv", []int{}},
 }
 
 func Lookup(op byte) (*Definition, error) {