diff options
Diffstat (limited to 'src/mame/drivers/dsb46.cpp')
-rw-r--r-- | src/mame/drivers/dsb46.cpp | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/src/mame/drivers/dsb46.cpp b/src/mame/drivers/dsb46.cpp index 7e40b29a3f1..5ef235552ab 100644 --- a/src/mame/drivers/dsb46.cpp +++ b/src/mame/drivers/dsb46.cpp @@ -43,17 +43,14 @@ public: dsb46_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); DECLARE_WRITE8_MEMBER(port1a_w); DECLARE_DRIVER_INIT(dsb46); DECLARE_MACHINE_RESET(dsb46); private: required_device<cpu_device> m_maincpu; - required_device<z80sio_device> m_sio; }; static ADDRESS_MAP_START( dsb46_mem, AS_PROGRAM, 8, dsb46_state ) @@ -97,13 +94,6 @@ WRITE8_MEMBER( dsb46_state::port1a_w ) membank("read")->set_entry(data & 1); } -// source of baud frequency is unknown, so we invent a clock -WRITE_LINE_MEMBER( dsb46_state::clock_tick ) -{ - m_sio->txca_w(state); - m_sio->rxca_w(state); -} - static const z80_daisy_config daisy_chain[] = { { "ctc1" }, @@ -123,7 +113,8 @@ static MACHINE_CONFIG_START( dsb46 ) /* video hardware */ MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600) - MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(dsb46_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_4MHz, 0, 0, 0, 0) |