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// license:BSD-3-Clause
// copyright-holders:Brian Johnson
/*******************************************************************
*
* NABU PC HDD Card
*
*******************************************************************/
#include "emu.h"
#include "hdd.h"
#include "machine/wd1000.h"
//**************************************************************************
// NABU PC HDD DEVICE
//**************************************************************************
namespace {
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
/* NABU PC HDD Device */
class hdd_device : public device_t, public bus::nabupc::device_option_expansion_interface
{
public:
// construction/destruction
hdd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// device_option_expansion_interface implementation
virtual uint8_t read(offs_t offset) override;
virtual void write(offs_t offset, uint8_t data) override;
protected:
// device_t implementation
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual void device_start() override ATTR_COLD;
private:
required_device<wd1000_device> m_hdd;
};
//-------------------------------------------------
// hdd_device - constructor
//-------------------------------------------------
hdd_device::hdd_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, NABUPC_OPTION_HDD, tag, owner, clock),
device_option_expansion_interface(mconfig, *this),
m_hdd(*this, "hdd")
{
}
//-------------------------------------------------
// device_add_mconfig - device-specific config
//-------------------------------------------------
void hdd_device::device_add_mconfig(machine_config &config)
{
WD1000(config, m_hdd, 0);
HARDDISK(config, "hdd:0", 0);
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void hdd_device::device_start()
{
}
uint8_t hdd_device::read(offs_t offset)
{
uint8_t result = 0xff;
switch(offset) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
result = m_hdd->read(offset);
break;
case 0x0f:
result = 0xe8;
break;
}
return result;
}
void hdd_device::write(offs_t offset, uint8_t data)
{
switch(offset) {
case 0x00:
case 0x01:
case 0x02:
case 0x03:
case 0x04:
case 0x05:
case 0x06:
case 0x07:
m_hdd->write(offset, data);
break;
}
}
} // anonymous namespace
DEFINE_DEVICE_TYPE_PRIVATE(NABUPC_OPTION_HDD, bus::nabupc::device_option_expansion_interface, hdd_device, "nabupc_option_hdd", "NABU PC Hard Disk Controller")
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