diff --git a/src/mess/includes/apple3.h b/src/mess/includes/apple3.h
index 98d22c64a99..8c8cd529bd1 100644
--- a/src/mess/includes/apple3.h
+++ b/src/mess/includes/apple3.h
@@ -65,7 +65,6 @@ public:
 	DECLARE_WRITE8_MEMBER(apple3_indexed_write);
 	UINT8 apple3_profile_r(offs_t offset);
 	void apple3_profile_w(offs_t offset, UINT8 data);
-	DECLARE_DIRECT_UPDATE_MEMBER(apple3_opbase);
 	DECLARE_DRIVER_INIT(apple3);
 	DECLARE_MACHINE_RESET(apple3);
 	DECLARE_VIDEO_START(apple3);
diff --git a/src/mess/machine/apple3.c b/src/mess/machine/apple3.c
index 2fe2bdae2d0..bec096e1e39 100644
--- a/src/mess/machine/apple3.c
+++ b/src/mess/machine/apple3.c
@@ -521,22 +521,6 @@ WRITE8_MEMBER(apple3_state::apple3_indexed_write)
 }
 
 
-
-DIRECT_UPDATE_MEMBER(apple3_state::apple3_opbase)
-{
-	UINT8 *opptr;
-
-	if ((address & 0xFF00) == 0x0000)
-	{
-		opptr = apple3_get_zpa_addr(address);
-		direct.explicit_configure(address, address, ~0, opptr - address);
-		address = ~0;
-	}
-	return address;
-}
-
-
-
 static void apple3_update_drives(device_t *device)
 {
 	apple3_state *state = device->machine().driver_data<apple3_state>();
@@ -622,8 +606,6 @@ DRIVER_INIT_MEMBER(apple3_state,apple3)
 	m_via_1->write_pb7(1);
 
 	apple3_update_memory();
-
-	m_maincpu->space(AS_PROGRAM).set_direct_update_handler(direct_update_delegate(FUNC(apple3_state::apple3_opbase), this));
 }
 
 READ8_MEMBER(apple3_state::apple3_memory_r)