diff --git a/Core/Cpu.Instructions.cpp b/Core/Cpu.Instructions.cpp
index d3de8a4..c2f7323 100644
--- a/Core/Cpu.Instructions.cpp
+++ b/Core/Cpu.Instructions.cpp
@@ -916,12 +916,12 @@ void Cpu::TCS()
 
 void Cpu::TDC()
 {
-	SetRegister(_state.A, _state.D, CheckFlag(ProcFlags::MemoryMode8));
+	SetRegister(_state.A, _state.D, false);
 }
 
 void Cpu::TSC()
 {
-	SetRegister(_state.A, _state.SP, CheckFlag(ProcFlags::MemoryMode8));
+	SetRegister(_state.A, _state.SP, false);
 }
 
 void Cpu::TSX()