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Diffstat (limited to 'src/mame/drivers/meritm.cpp')
-rw-r--r--src/mame/drivers/meritm.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mame/drivers/meritm.cpp b/src/mame/drivers/meritm.cpp
index 24cdf29546c..f8e90fdcf12 100644
--- a/src/mame/drivers/meritm.cpp
+++ b/src/mame/drivers/meritm.cpp
@@ -1145,13 +1145,15 @@ MACHINE_CONFIG_START(meritm_state::meritm_crt250)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(meritm_state::meritm_crt250_questions, meritm_crt250)
+MACHINE_CONFIG_START(meritm_state::meritm_crt250_questions)
+ meritm_crt250(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(meritm_crt250_questions_map)
MCFG_MACHINE_START_OVERRIDE(meritm_state,meritm_crt250_questions)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(meritm_state::meritm_crt250_crt252_crt258, meritm_crt250_questions)
+MACHINE_CONFIG_START(meritm_state::meritm_crt250_crt252_crt258)
+ meritm_crt250_questions(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_IO_MAP(meritm_crt250_crt258_io_map)
MCFG_MACHINE_START_OVERRIDE(meritm_state,meritm_crt250_crt252_crt258)
@@ -1162,7 +1164,8 @@ MACHINE_CONFIG_DERIVED(meritm_state::meritm_crt250_crt252_crt258, meritm_crt250_
MCFG_MICROTOUCH_TOUCH_CB(meritm_state, meritm_touch_coord_transform)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(meritm_state::meritm_crt260, meritm_crt250)
+MACHINE_CONFIG_START(meritm_state::meritm_crt260)
+ meritm_crt250(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(meritm_map)
MCFG_CPU_IO_MAP(meritm_io_map)