diff --git a/src/devices/machine/gen_latch.cpp b/src/devices/machine/gen_latch.cpp
index 54982bc7e85..a72305bcaa4 100644
--- a/src/devices/machine/gen_latch.cpp
+++ b/src/devices/machine/gen_latch.cpp
@@ -41,6 +41,16 @@ WRITE8_MEMBER( generic_latch_8_device::write )
 	machine().scheduler().synchronize(timer_expired_delegate(FUNC(generic_latch_8_device::sync_callback), this), data);
 }
 
+WRITE8_MEMBER( generic_latch_8_device::preset_w )
+{
+	m_latched_value = 0xff;
+}
+
+WRITE8_MEMBER( generic_latch_8_device::clear_w )
+{
+	m_latched_value = 0x00;
+}
+
 WRITE_LINE_MEMBER( generic_latch_8_device::preset_w )
 {
 	m_latched_value = 0xff;
@@ -113,6 +123,16 @@ WRITE16_MEMBER( generic_latch_16_device::write )
 	machine().scheduler().synchronize(timer_expired_delegate(FUNC(generic_latch_16_device::sync_callback), this), data);
 }
 
+WRITE16_MEMBER( generic_latch_16_device::preset_w )
+{
+	m_latched_value = 0xffff;
+}
+
+WRITE16_MEMBER( generic_latch_16_device::clear_w )
+{
+	m_latched_value = 0x0000;
+}
+
 WRITE_LINE_MEMBER( generic_latch_16_device::preset_w )
 {
 	m_latched_value = 0xffff;
diff --git a/src/devices/machine/gen_latch.h b/src/devices/machine/gen_latch.h
index 65149fc5985..2da8ca41cfb 100644
--- a/src/devices/machine/gen_latch.h
+++ b/src/devices/machine/gen_latch.h
@@ -35,6 +35,9 @@ public:
 
 	DECLARE_READ8_MEMBER( read );
 	DECLARE_WRITE8_MEMBER( write );
+	
+	DECLARE_WRITE8_MEMBER( preset_w );
+	DECLARE_WRITE8_MEMBER( clear_w );
 	DECLARE_WRITE_LINE_MEMBER( preset_w );
 	DECLARE_WRITE_LINE_MEMBER( clear_w );
 
@@ -61,6 +64,9 @@ public:
 
 	DECLARE_READ16_MEMBER( read );
 	DECLARE_WRITE16_MEMBER( write );
+	
+	DECLARE_WRITE16_MEMBER( preset_w );
+	DECLARE_WRITE16_MEMBER( clear_w );
 	DECLARE_WRITE_LINE_MEMBER( preset_w );
 	DECLARE_WRITE_LINE_MEMBER( clear_w );