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Diffstat (limited to 'src/mame/drivers/myb3k.cpp')
-rw-r--r--src/mame/drivers/myb3k.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mame/drivers/myb3k.cpp b/src/mame/drivers/myb3k.cpp
index a72a4014956..d36f5bb6d06 100644
--- a/src/mame/drivers/myb3k.cpp
+++ b/src/mame/drivers/myb3k.cpp
@@ -1023,15 +1023,17 @@ MACHINE_CONFIG_START(myb3k_state::myb3k)
MCFG_SCREEN_UPDATE_DEVICE("crtc", h46505_device, screen_update)
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(myb3k_state::jb3000, myb3k)
+MACHINE_CONFIG_START(myb3k_state::jb3000)
+ myb3k(config);
/* Keyboard */
MCFG_DEVICE_REPLACE("myb3k_keyboard", JB3000_KEYBOARD, 0)
MCFG_MYB3K_KEYBOARD_CB(PUT(myb3k_state, kbd_set_data_and_interrupt))
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(myb3k_state::stepone, myb3k)
- /* Keyboard */
+MACHINE_CONFIG_START(myb3k_state::stepone)
+ myb3k(config);
+ /* Keyboard */
MCFG_DEVICE_REPLACE("myb3k_keyboard", STEPONE_KEYBOARD, 0)
MCFG_MYB3K_KEYBOARD_CB(PUT(myb3k_state, kbd_set_data_and_interrupt))