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-rw-r--r--src/mame/drivers/compuchess.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mame/drivers/compuchess.cpp b/src/mame/drivers/compuchess.cpp
index 7ea300bc805..c83e642d0aa 100644
--- a/src/mame/drivers/compuchess.cpp
+++ b/src/mame/drivers/compuchess.cpp
@@ -368,18 +368,20 @@ void cmpchess_state::mk1(machine_config &config)
cmpchess(config);
/* basic machine hardware */
- m_maincpu->set_clock(2000000); // JS&A version measured 2.18MHz on average
- subdevice<f3853_device>("smi")->set_clock(2000000);
+ m_maincpu->set_clock(2200000); // JS&A version measured 2.18MHz on average
+ subdevice<f3853_device>("smi")->set_clock(2200000);
config.set_default_layout(layout_novag_mk1);
}
void cmpchess_state::cnc(machine_config &config)
{
- mk1(config);
+ cmpchess(config);
/* basic machine hardware */
m_maincpu->set_addrmap(AS_IO, &cmpchess_state::cnc_io);
+ m_maincpu->set_clock(2000000); // LC circuit, measured 2MHz
+ subdevice<f3853_device>("smi")->set_clock(2000000);
config.set_default_layout(layout_cncchess);