diff --git a/OSBindings/Mac/Clock SignalTests/FUSETests.swift b/OSBindings/Mac/Clock SignalTests/FUSETests.swift
index c41450627..14c331634 100644
--- a/OSBindings/Mac/Clock SignalTests/FUSETests.swift	
+++ b/OSBindings/Mac/Clock SignalTests/FUSETests.swift	
@@ -28,6 +28,7 @@ fileprivate struct RegisterState {
 	let i: UInt8,		r: UInt8
 	let	iff1: Bool,		iff2: Bool,		interruptMode: Int
 	let isHalted: Bool
+	let memptr: UInt16
 	let tStates: Int
 
 	func set(onMachine machine: CSTestMachineZ80) {
@@ -48,6 +49,7 @@ fileprivate struct RegisterState {
 		machine.setValue(iff1 ? 1 : 0, for: .IFF1)
 		machine.setValue(iff2 ? 1 : 0, for: .IFF2)
 		machine.setValue(UInt16(interruptMode), for: .IM)
+		machine.setValue(memptr, for: .memPtr)
 		// TODO: isHalted
 	}
 
@@ -83,6 +85,7 @@ fileprivate struct RegisterState {
 
 		interruptMode = (dictionary["im"] as! NSNumber).intValue
 		isHalted = (dictionary["halted"] as! NSNumber).boolValue
+		memptr = UInt16(truncating: dictionary["memptr"] as! NSNumber)
 
 		tStates = (dictionary["tStates"] as! NSNumber).intValue
 	}
@@ -115,6 +118,7 @@ fileprivate struct RegisterState {
 
 		isHalted = machine.isHalted
 		tStates = 0			// TODO	 (?)
+		memptr = machine.value(for: .memPtr)
 	}
 }
 
@@ -138,7 +142,8 @@ fileprivate func ==(lhs: RegisterState, rhs: RegisterState) -> Bool {
 			lhs.iff1 == rhs.iff1 &&
 			lhs.iff2 == rhs.iff2 &&
 			lhs.interruptMode == rhs.interruptMode &&
-			lhs.isHalted == rhs.isHalted
+			lhs.isHalted == rhs.isHalted &&
+			lhs.memptr == rhs.memptr
 }
 
 class FUSETests: XCTestCase {
@@ -167,7 +172,7 @@ class FUSETests: XCTestCase {
 
 			let name = itemDictionary["name"] as! String
 
-//			if name != "02" {
+//			if name != "01" {
 //				continue;
 //			}
 //			print("\(name)")