diff --git a/src/mame/drivers/mc8020.cpp b/src/mame/drivers/mc8020.cpp
index 2bc2c00bacb..dd249bea3ad 100644
--- a/src/mame/drivers/mc8020.cpp
+++ b/src/mame/drivers/mc8020.cpp
@@ -45,6 +45,7 @@ private:
 	void mem_map(address_map &map);
 
 	u8 m_row;
+	virtual void machine_start() override;
 	required_shared_ptr<u8> m_p_videoram;
 	required_device<z80_device> m_maincpu;
 	required_ioport_array<7> m_keyboard;
@@ -177,6 +178,11 @@ void mc8020_state::port_b_w(u8 data)
 {
 }
 
+void mc8020_state::machine_start()
+{
+	save_item(NAME(m_row));
+}
+
 
 // This is not a content of U402 510
 // but order is fine
@@ -371,4 +377,4 @@ ROM_END
 /* Driver */
 
 //    YEAR  NAME    PARENT  COMPAT  MACHINE  INPUT   CLASS         INIT        COMPANY                FULLNAME       FLAGS
-COMP( 198?, mc8020, 0,      0,      mc8020,  mc8020, mc8020_state, empty_init, "VEB Elektronik Gera", "MC-80.21/22", MACHINE_NO_SOUND )
+COMP( 198?, mc8020, 0,      0,      mc8020,  mc8020, mc8020_state, empty_init, "VEB Elektronik Gera", "MC-80.21/22", MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/drivers/savia84.cpp b/src/mame/drivers/savia84.cpp
index 44ec8d70b83..bd26fcf9631 100644
--- a/src/mame/drivers/savia84.cpp
+++ b/src/mame/drivers/savia84.cpp
@@ -57,7 +57,7 @@ private:
 
 	uint8_t m_digit;
 	uint8_t m_seg;
-	void machine_start() override;
+	virtual void machine_start() override;
 	required_device<cpu_device> m_maincpu;
 	required_device<i8255_device> m_ppi8255;
 	required_device<pwm_display_device> m_display;
@@ -201,4 +201,4 @@ ROM_END
 /* Driver */
 
 //    YEAR  NAME     PARENT  COMPAT  MACHINE  INPUT    CLASS          INIT        COMPANY      FULLNAME    FLAGS
-COMP( 1984, savia84, 0,      0,      savia84, savia84, savia84_state, empty_init, "J.T. Hyan", "Savia 84", MACHINE_NO_SOUND_HW)
+COMP( 1984, savia84, 0,      0,      savia84, savia84, savia84_state, empty_init, "J.T. Hyan", "Savia 84", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )
diff --git a/src/mame/drivers/z80dev.cpp b/src/mame/drivers/z80dev.cpp
index 0dfd9da0e0e..0a9defc0d11 100644
--- a/src/mame/drivers/z80dev.cpp
+++ b/src/mame/drivers/z80dev.cpp
@@ -143,4 +143,4 @@ ROM_END
 /* Driver */
 
 /*    YEAR  NAME    PARENT  COMPAT  MACHINE  INPUT   CLASS         INIT        COMPANY      FULLNAME         FLAGS */
-COMP( 198?, z80dev, 0,      0,      z80dev,  z80dev, z80dev_state, empty_init, "<unknown>", "Z80 dev board", MACHINE_NO_SOUND_HW)
+COMP( 198?, z80dev, 0,      0,      z80dev,  z80dev, z80dev_state, empty_init, "<unknown>", "Z80 dev board", MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )