diff options
Diffstat (limited to 'src/mame/drivers/zsbc3.cpp')
-rw-r--r-- | src/mame/drivers/zsbc3.cpp | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/src/mame/drivers/zsbc3.cpp b/src/mame/drivers/zsbc3.cpp index 3060d52c07e..7190a109203 100644 --- a/src/mame/drivers/zsbc3.cpp +++ b/src/mame/drivers/zsbc3.cpp @@ -48,15 +48,11 @@ public: zsbc3_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") - , m_sio(*this, "sio") { } - DECLARE_WRITE_LINE_MEMBER(clock_tick); - private: virtual void machine_reset() override; required_device<cpu_device> m_maincpu; - required_device<z80sio_device> m_sio; }; @@ -84,13 +80,6 @@ void zsbc3_state::machine_reset() { } -// source of baud frequency is unknown, so we invent a clock -WRITE_LINE_MEMBER( zsbc3_state::clock_tick ) -{ - m_sio->txca_w(state); - m_sio->rxca_w(state); -} - static MACHINE_CONFIG_START( zsbc3 ) /* basic machine hardware */ @@ -100,7 +89,8 @@ static MACHINE_CONFIG_START( zsbc3 ) /* video hardware */ MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600) - MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(zsbc3_state, clock_tick)) + MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("sio", z80sio_device, txca_w)) + MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("sio", z80sio_device, rxca_w)) /* Devices */ MCFG_Z80SIO_ADD("sio", XTAL_16MHz / 4, 0, 0, 0, 0) |