void bitgraph_state::bg_ppu(machine_config &config)
{
i8035_device &ppu(I8035(config, PPU_TAG, XTAL(6'900'000)));
ppu.set_addrmap(AS_IO, &bitgraph_state::ppu_io);
// ppu.t0_in_cb().set(FUNC(bitgraph_state::ppu_t0_r));
ppu.prog_out_cb().set("i8243", FUNC(i8243_device::prog_w));
i8243_device &i8243(I8243(config, "i8243"));
i8243.read_handler().set_nop();
i8243.write_handler().set(FUNC(bitgraph_state::ppu_i8243_w));
CENTRONICS(config, m_centronics, centronics_devices, "printer");
m_centronics->ack_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit6));
m_centronics->busy_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit7));
m_centronics->fault_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit4));
m_centronics->perror_handler().set("cent_status_in", FUNC(input_buffer_device::write_bit5));
INPUT_BUFFER(config, "cent_status_in");
output_latch_device ¢_data_out(OUTPUT_LATCH(config, "cent_data_out"));
m_centronics->set_output_latch(cent_data_out);
}
MCFG_DEVICE_ADD(EAROM_TAG, ER2055, 0)
SPEAKER(config, "mono").front_center();
MCFG_DEVICE_ADD(PSG_TAG, AY8912, XTAL(1'294'400))
MCFG_AY8910_PORT_A_WRITE_CB(WRITE8(*this, bitgraph_state, earom_write))
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
MACHINE_CONFIG_END
#ifdef UNUSED_FUNCTION
MACHINE_CONFIG_START(bitgraph_state::bg_ppu)
MCFG_DEVICE_ADD(PPU_TAG, I8035, XTAL(6'900'000))
MCFG_DEVICE_IO_MAP(ppu_io)
// MCFG_MCS48_PORT_T0_IN_CB(READLINE(*this, bitgraph_state, ppu_t0_r))
MCFG_MCS48_PORT_PROG_OUT_CB(WRITELINE("i8243", i8243_device, prog_w))
i8243_device &i8243(I8243(config, "i8243"));
i8243.read_handler().set_nop();
i8243.write_handler().set(FUNC(bitgraph_state::ppu_i8243_w));
MCFG_CENTRONICS_ADD("centronics", centronics_devices, "printer")
MCFG_CENTRONICS_ACK_HANDLER(WRITELINE("cent_status_in", input_buffer_device, write_bit6))
MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE("cent_status_in", input_buffer_device, write_bit7))
MCFG_CENTRONICS_FAULT_HANDLER(WRITELINE("cent_status_in", input_buffer_device, write_bit4))
MCFG_CENTRONICS_PERROR_HANDLER(WRITELINE("cent_status_in", input_buffer_device, write_bit5))
MCFG_DEVICE_ADD("cent_status_in", INPUT_BUFFER, 0)
MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics")
MACHINE_CONFIG_END
#endif
