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Diffstat (limited to 'src/devices/bus/bbc/fdc/cumana.cpp')
-rw-r--r--src/devices/bus/bbc/fdc/cumana.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/bus/bbc/fdc/cumana.cpp b/src/devices/bus/bbc/fdc/cumana.cpp
index 7cec0c2e391..23cecd3ebcf 100644
--- a/src/devices/bus/bbc/fdc/cumana.cpp
+++ b/src/devices/bus/bbc/fdc/cumana.cpp
@@ -61,7 +61,7 @@ ROM_END
void bbc_cumana1_device::device_add_mconfig(machine_config &config)
{
- MB8877(config, m_fdc, 16_MHz_XTAL / 16);
+ MB8877(config, m_fdc, DERIVED_CLOCK(1, 8));
m_fdc->intrq_wr_callback().set(FUNC(bbc_cumanafdc_device::fdc_intrq_w));
m_fdc->drq_wr_callback().set(FUNC(bbc_cumanafdc_device::fdc_drq_w));
m_fdc->hld_wr_callback().set(FUNC(bbc_cumanafdc_device::motor_w));
@@ -72,7 +72,7 @@ void bbc_cumana1_device::device_add_mconfig(machine_config &config)
void bbc_cumana2_device::device_add_mconfig(machine_config &config)
{
- MB8877(config, m_fdc, 16_MHz_XTAL / 16);
+ MB8877(config, m_fdc, DERIVED_CLOCK(1, 8));
m_fdc->intrq_wr_callback().set(FUNC(bbc_cumanafdc_device::fdc_intrq_w));
m_fdc->drq_wr_callback().set(FUNC(bbc_cumanafdc_device::fdc_drq_w));
m_fdc->hld_wr_callback().set(FUNC(bbc_cumanafdc_device::motor_w));