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Diffstat (limited to 'src/mame/drivers/mephisto_montec.cpp')
-rw-r--r--src/mame/drivers/mephisto_montec.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/mephisto_montec.cpp b/src/mame/drivers/mephisto_montec.cpp
index 300fc794adf..3bccddca35e 100644
--- a/src/mame/drivers/mephisto_montec.cpp
+++ b/src/mame/drivers/mephisto_montec.cpp
@@ -520,9 +520,9 @@ INPUT_PORTS_END
void mephisto_montec_state::montec(machine_config &config)
{
- M65C02(config, m_maincpu, XTAL(4'000'000));
+ M65C02(config, m_maincpu, XTAL(8'000'000) / 2);
m_maincpu->set_addrmap(AS_PROGRAM, &mephisto_montec_state::montec_mem);
- m_maincpu->set_periodic_int(FUNC(mephisto_montec_state::nmi_line_assert), attotime::from_hz(XTAL(4'000'000) / (1 << 13)));
+ m_maincpu->set_periodic_int(FUNC(mephisto_montec_state::nmi_line_assert), attotime::from_hz(XTAL(8'000'000) / (1 << 14)));
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);