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Diffstat (limited to 'src/mame/drivers/jtc.cpp')
-rw-r--r--src/mame/drivers/jtc.cpp12
1 files changed, 8 insertions, 4 deletions
diff --git a/src/mame/drivers/jtc.cpp b/src/mame/drivers/jtc.cpp
index f728bb9c396..ec4ae25d00e 100644
--- a/src/mame/drivers/jtc.cpp
+++ b/src/mame/drivers/jtc.cpp
@@ -746,7 +746,8 @@ MACHINE_CONFIG_START(jtc_state::basic)
MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(jtc_state, write_centronics_busy))
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(jtc_state::jtc, basic)
+MACHINE_CONFIG_START(jtc_state::jtc)
+ basic(config);
/* video hardware */
MCFG_SCREEN_ADD(SCREEN_TAG, RASTER)
MCFG_SCREEN_REFRESH_RATE(50)
@@ -763,7 +764,8 @@ MACHINE_CONFIG_DERIVED(jtc_state::jtc, basic)
MCFG_RAM_DEFAULT_SIZE("2K")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(jtces88_state::jtces88, jtc)
+MACHINE_CONFIG_START(jtces88_state::jtces88)
+ jtc(config);
/* basic machine hardware */
MCFG_CPU_MODIFY(UB8830D_TAG)
MCFG_CPU_PROGRAM_MAP(jtc_es1988_mem)
@@ -773,7 +775,8 @@ MACHINE_CONFIG_DERIVED(jtces88_state::jtces88, jtc)
MCFG_RAM_DEFAULT_SIZE("4K")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(jtces23_state::jtces23, basic)
+MACHINE_CONFIG_START(jtces23_state::jtces23)
+ basic(config);
/* basic machine hardware */
MCFG_CPU_MODIFY(UB8830D_TAG)
MCFG_CPU_PROGRAM_MAP(jtc_es23_mem)
@@ -795,7 +798,8 @@ MACHINE_CONFIG_DERIVED(jtces23_state::jtces23, basic)
MCFG_RAM_DEFAULT_SIZE("4K")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(jtces40_state::jtces40, basic)
+MACHINE_CONFIG_START(jtces40_state::jtces40)
+ basic(config);
/* basic machine hardware */
MCFG_CPU_MODIFY(UB8830D_TAG)
MCFG_CPU_PROGRAM_MAP(jtc_es40_mem)