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Diffstat (limited to 'src/mame/drivers/mits680b.cpp')
-rw-r--r--src/mame/drivers/mits680b.cpp24
1 files changed, 5 insertions, 19 deletions
diff --git a/src/mame/drivers/mits680b.cpp b/src/mame/drivers/mits680b.cpp
index 9511b933d46..a05ed4fdd42 100644
--- a/src/mame/drivers/mits680b.cpp
+++ b/src/mame/drivers/mits680b.cpp
@@ -33,17 +33,12 @@ public:
mits680b_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
- , m_acia(*this, "acia")
- {
- }
+ { }
DECLARE_READ8_MEMBER(status_check_r);
- DECLARE_WRITE_LINE_MEMBER(clock_tick);
private:
- virtual void machine_reset() override;
required_device<cpu_device> m_maincpu;
- required_device<acia6850_device> m_acia;
};
READ8_MEMBER( mits680b_state::status_check_r )
@@ -51,12 +46,6 @@ READ8_MEMBER( mits680b_state::status_check_r )
return 0; // crashes at start if bit 7 high
}
-WRITE_LINE_MEMBER( mits680b_state::clock_tick )
-{
- m_acia->write_txc(state);
- m_acia->write_rxc(state);
-}
-
static ADDRESS_MAP_START(mits680b_mem, AS_PROGRAM, 8, mits680b_state)
ADDRESS_MAP_UNMAP_HIGH
@@ -72,15 +61,15 @@ static INPUT_PORTS_START( mits680b )
INPUT_PORTS_END
-void mits680b_state::machine_reset()
-{
-}
-
static MACHINE_CONFIG_START( mits680b )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M6800, XTAL_1MHz / 2)
MCFG_CPU_PROGRAM_MAP(mits680b_mem)
+ MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600)
+ MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("acia", acia6850_device, write_txc))
+ MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("acia", acia6850_device, write_rxc))
+
MCFG_DEVICE_ADD("acia", ACIA6850, 0)
MCFG_ACIA6850_TXD_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_txd))
MCFG_ACIA6850_RTS_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_rts))
@@ -88,9 +77,6 @@ static MACHINE_CONFIG_START( mits680b )
MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, "terminal")
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia", acia6850_device, write_rxd))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE("acia", acia6850_device, write_cts))
-
- MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600)
- MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(mits680b_state, clock_tick))
MACHINE_CONFIG_END
/* ROM definition */