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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
DataBoard 4106 Minifloppy interface emulation
*********************************************************************/
#include "emu.h"
#include "db4106.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define Z80_TAG "maincpu"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(DATABOARD_4106, databoard_4106_device, "abc_db4106", "DataBoard 4106 Minifloppy interface")
//-------------------------------------------------
// ROM( databoard_4106 )
//-------------------------------------------------
ROM_START( databoard_4106 )
ROM_REGION( 0x800, Z80_TAG, 0 )
ROM_LOAD("databoard-4106-a5.12-floppy-cont.bin", 0x000, 0x800, CRC(708f2a2f) SHA1(3f99ea2ef301d9e3415db152dad79171dc62cc2d) ) // single track controller
ROM_END
//-------------------------------------------------
// rom_region - device-specific ROM region
//-------------------------------------------------
const tiny_rom_entry *databoard_4106_device::device_rom_region() const
{
return ROM_NAME( databoard_4106 );
}
//-------------------------------------------------
// ADDRESS_MAP( databoard_4106_mem )
//-------------------------------------------------
void databoard_4106_device::databoard_4106_mem(address_map &map)
{
map(0x0000, 0x07ff).rom().region(Z80_TAG, 0);
}
//-------------------------------------------------
// ADDRESS_MAP( databoard_4106_io )
//-------------------------------------------------
void databoard_4106_device::databoard_4106_io(address_map &map)
{
}
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void databoard_4106_device::device_add_mconfig(machine_config &config)
{
Z80(config, m_maincpu, XTAL::u(4000000));
m_maincpu->set_memory_map(&databoard_4106_device::databoard_4106_mem);
m_maincpu->set_io_map(&databoard_4106_device::databoard_4106_io);
}
//-------------------------------------------------
// INPUT_PORTS( databoard_4106 )
//-------------------------------------------------
INPUT_PORTS_START( databoard_4106 )
INPUT_PORTS_END
//-------------------------------------------------
// input_ports - device-specific input ports
//-------------------------------------------------
ioport_constructor databoard_4106_device::device_input_ports() const
{
return INPUT_PORTS_NAME( databoard_4106 );
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// databoard_4106_device - constructor
//-------------------------------------------------
databoard_4106_device::databoard_4106_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock) :
device_t(mconfig, DATABOARD_4106, tag, owner, clock),
device_abcbus_card_interface(mconfig, *this),
m_maincpu(*this, Z80_TAG)
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void databoard_4106_device::device_start()
{
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void databoard_4106_device::device_reset()
{
m_cs = false;
}
//**************************************************************************
// ABC BUS INTERFACE
//**************************************************************************
//-------------------------------------------------
// abcbus_cs -
//-------------------------------------------------
void databoard_4106_device::abcbus_cs(uint8_t data)
{
}
//-------------------------------------------------
// abcbus_stat -
//-------------------------------------------------
uint8_t databoard_4106_device::abcbus_stat()
{
uint8_t data = 0xff;
if (m_cs)
{
}
return data;
}
//-------------------------------------------------
// abcbus_inp -
//-------------------------------------------------
uint8_t databoard_4106_device::abcbus_inp()
{
uint8_t data = 0xff;
if (m_cs)
{
}
return data;
}
//-------------------------------------------------
// abcbus_out -
//-------------------------------------------------
void databoard_4106_device::abcbus_out(uint8_t data)
{
if (!m_cs) return;
}
//-------------------------------------------------
// abcbus_c1 -
//-------------------------------------------------
void databoard_4106_device::abcbus_c1(uint8_t data)
{
if (m_cs)
{
}
}
//-------------------------------------------------
// abcbus_c3 -
//-------------------------------------------------
void databoard_4106_device::abcbus_c3(uint8_t data)
{
if (m_cs)
{
m_maincpu->reset();
}
}
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