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MC6846 uses the E clock too (nw)

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This commit is contained in:
AJR 2018-08-06 21:03:20 -04:00
parent 42f3d26e1e
commit 69a8ee58d4
2 changed files with 6 additions and 6 deletions
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10
src/devices/machine/mc6846.cpp
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@ -129,7 +129,7 @@ inline uint16_t mc6846_device::counter()
if ( m_timer_started )
{
attotime delay = m_interval ->remaining( );
return delay.as_ticks(1000000) / FACTOR;
return attotime_to_clocks(delay) / FACTOR;
}
else
return m_preset;
@ -201,7 +201,7 @@ inline void mc6846_device::timer_launch()
case 0x20: /* single-shot */
m_cto = 0;
m_one_shot->reset( attotime::from_usec(FACTOR) );
m_one_shot->reset(clocks_to_attotime(FACTOR));
break;
case 0x30: /* cascaded single-shot */
@ -214,7 +214,7 @@ inline void mc6846_device::timer_launch()
return;
}
m_interval->reset( attotime::from_usec(delay) );
m_interval->reset(clocks_to_attotime(delay));
m_timer_started = 1;
m_csr &= ~1;
@ -255,12 +255,12 @@ TIMER_CALLBACK_MEMBER( mc6846_device::timer_expire )
default:
logerror( "mc6846 timer mode %i not implemented\n", MODE );
m_interval->reset( );
m_interval->reset();
m_timer_started = 0;
return;
}
m_interval->reset( attotime::from_usec(delay) );
m_interval->reset(clocks_to_attotime(delay));
m_csr |= 1;
update_cto();

2
src/mame/drivers/thomson.cpp
View File

@ -667,7 +667,7 @@ MACHINE_CONFIG_START(thomson_state::to7)
MCFG_CASSETTE_INTERFACE("to_cass")
/* timer */
MCFG_DEVICE_ADD("mc6846", MC6846, 0)
MCFG_DEVICE_ADD("mc6846", MC6846, 16_MHz_XTAL / 16)
MCFG_MC6846_OUT_PORT_CB(WRITE8(*this, thomson_state, to7_timer_port_out))
MCFG_MC6846_OUT_CP2_CB(WRITELINE("buzzer", dac_bit_interface, write))
MCFG_MC6846_IN_PORT_CB(READ8(*this, thomson_state, to7_timer_port_in))