fix pc invalid jump

Author: ChippyPlus

main.kar

@@ -1,3 +1,3 @@
 str f1 "Hello!"
 call println
-jmp -1
+lit i8 -

src/main/kotlin/engine/Parser.kt

@@ -173,9 +173,9 @@ fun parser(vm: Vm, file: List<String>): List<InstructData> {
 //				throw e
 				val x = e.message!!.split(" ")[3].substring(1, e.message!!.split(" ").size - 1).toRegisterType()
 				if (x == null) {
-					vm.errors.InvalidArgumentFormatException(badType = "BigLong", shouldBe = "Long")
+					vm.errors.InvalidArgumentFormatException(badType = "Any", shouldBe = "Long")
 				} else {
-					vm.errors.InvalidArgumentFormatException(badType = "Long", shouldBe = "Long")
+					vm.errors.InvalidArgumentFormatException(badType = "Long", shouldBe = "Register")
 				}
 			} catch (_: IllegalStateException) {
 				vm.errors.InvalidArgumentFormatException(

src/main/kotlin/engine/execution/Execute.kt

@@ -35,6 +35,11 @@ class Execute(val vm: Vm) {
 			sleep(hertz)
 
 			vm.pc++
+
+			if (vm.pc - 1 < 0) {
+				vm.errors.InvalidPcValueException((vm.pc - 1).toString())
+			}
+
 			if (vm.pc - 1L == command.size.toLong()) {
 				break
 			}

src/main/kotlin/internals/Vm.kt

@@ -57,8 +57,8 @@ class Pc(val vm: Vm) {
 
 
 	operator fun getValue(thisRef: Any?, property: KProperty<*>): Long {
-
-		return RegisterType.I8.read(vm)
+		val value = RegisterType.I8.read(vm)
+		return value
 	}
 
 	operator fun setValue(thisRef: Any?, property: KProperty<*>, value: Long) = kotlin.run {