diff --git a/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.h b/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.h
index bf08b825c..fa3b379f5 100644
--- a/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.h	
+++ b/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.h	
@@ -40,6 +40,7 @@ extern const uint8_t CSTestMachine6502JamOpcode;
 - (nonnull instancetype)initWithProcessor:(CSTestMachine6502Processor)processor;
 
 - (void)setData:(nonnull NSData *)data atAddress:(uint32_t)startAddress;
+- (nonnull NSData *)dataAtAddress:(uint32_t)address length:(uint32_t)length;
 - (void)runForNumberOfCycles:(int)cycles;
 - (void)runForNumberOfInstructions:(int)instructions;
 
diff --git a/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.mm b/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.mm
index 4d567cd53..ae7768f8b 100644
--- a/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.mm	
+++ b/OSBindings/Mac/Clock SignalTests/Bridges/TestMachine6502.mm	
@@ -93,6 +93,12 @@ static CPU::MOS6502::Register registerForRegister(CSTestMachine6502Register reg)
 	_processor->set_data_at_address(startAddress, data.length, (const uint8_t *)data.bytes);
 }
 
+- (nonnull NSData *)dataAtAddress:(uint32_t)address length:(uint32_t)length {
+	NSMutableData *data = [[NSMutableData alloc] initWithLength:length];
+	_processor->get_data_at_address(address, length, (uint8_t *)data.mutableBytes);
+	return data;
+}
+
 - (BOOL)isJammed {
 	return _processor->is_jammed();
 }
diff --git a/OSBindings/Mac/Clock SignalTests/NeskellTests.swift b/OSBindings/Mac/Clock SignalTests/NeskellTests.swift
index 82981e11c..523bb5170 100644
--- a/OSBindings/Mac/Clock SignalTests/NeskellTests.swift	
+++ b/OSBindings/Mac/Clock SignalTests/NeskellTests.swift	
@@ -44,6 +44,10 @@ class NeskellTests: XCTestCase {
 	func testAHX_TAS_SHX_SHY() {
 		if let result = runTest(resource: "ahx_tas_shx_shy_test") {
 			XCTAssertEqual(result.value(for: .stackPointer), 0xf2)
+
+			let stackData = result.data(atAddress: 0x1f3, length: 0x200 - 0x1f3)
+			XCTAssertEqual(stackData,
+				Data([0x01, 0xC9, 0x01, 0x80, 0xC0, 0xE0, 0x01, 0x55, 0x80, 0x80, 0x01, 0x34, 0x10]));
 		}
 	}
 }