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Diffstat (limited to 'src/mame/drivers/xerox820.cpp')
-rw-r--r--src/mame/drivers/xerox820.cpp9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mame/drivers/xerox820.cpp b/src/mame/drivers/xerox820.cpp
index f60a90a1e0b..5de55077cf3 100644
--- a/src/mame/drivers/xerox820.cpp
+++ b/src/mame/drivers/xerox820.cpp
@@ -612,7 +612,8 @@ MACHINE_CONFIG_START(xerox820_state::xerox820)
MCFG_SOFTWARE_LIST_ADD("flop_list", "xerox820")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(bigboard_state::bigboard, xerox820)
+MACHINE_CONFIG_START(bigboard_state::bigboard)
+ xerox820(config);
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("beeper", BEEP, 950)
@@ -714,7 +715,8 @@ MACHINE_CONFIG_START(xerox820ii_state::xerox820ii)
MCFG_SOFTWARE_LIST_ADD("flop_list", "xerox820ii")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(xerox820ii_state::xerox168, xerox820ii)
+MACHINE_CONFIG_START(xerox820ii_state::xerox168)
+ xerox820ii(config);
MCFG_CPU_ADD(I8086_TAG, I8086, 4770000)
MCFG_CPU_PROGRAM_MAP(xerox168_mem)
@@ -724,7 +726,8 @@ MACHINE_CONFIG_DERIVED(xerox820ii_state::xerox168, xerox820ii)
MCFG_RAM_EXTRA_OPTIONS("320K")
MACHINE_CONFIG_END
-MACHINE_CONFIG_DERIVED(xerox820_state::mk83, xerox820)
+MACHINE_CONFIG_START(xerox820_state::mk83)
+ xerox820(config);
MCFG_CPU_MODIFY(Z80_TAG)
MCFG_CPU_PROGRAM_MAP(mk83_mem)
MACHINE_CONFIG_END