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Diffstat (limited to 'src/mame/drivers/midtunit.cpp')
-rw-r--r--src/mame/drivers/midtunit.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/mame/drivers/midtunit.cpp b/src/mame/drivers/midtunit.cpp
index c0eedccab22..b3b134419ed 100644
--- a/src/mame/drivers/midtunit.cpp
+++ b/src/mame/drivers/midtunit.cpp
@@ -621,7 +621,8 @@ MACHINE_CONFIG_START(midtunit_state::tunit_core)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(midtunit_state::tunit_adpcm, tunit_core)
+MACHINE_CONFIG_START(midtunit_state::tunit_adpcm)
+ tunit_core(config);
/* basic machine hardware */
MCFG_SPEAKER_STANDARD_MONO("speaker")
@@ -630,7 +631,8 @@ MACHINE_CONFIG_DERIVED(midtunit_state::tunit_adpcm, tunit_core)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(midtunit_state::tunit_dcs, tunit_core)
+MACHINE_CONFIG_START(midtunit_state::tunit_dcs)
+ tunit_core(config);
/* basic machine hardware */
MCFG_DEVICE_ADD("dcs", DCS_AUDIO_2K, 0)