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// license:BSD-3-Clause
// copyright-holders:Rob Justice, R. Belmont
/*********************************************************************
softcard3.h
Implementation of the Microsoft SoftCard /// Z-80 card
*********************************************************************/
#ifndef MAME_BUS_A2BUS_SOFTCARD3_H
#define MAME_BUS_A2BUS_SOFTCARD3_H
#include "a2bus.h"
#include "machine/timer.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class a2bus_softcard3_device:
public device_t,
public device_a2bus_card_interface
{
public:
// construction/destruction
a2bus_softcard3_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
void z80_io_w(offs_t offset, uint8_t data);
protected:
a2bus_softcard3_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, const XTAL &clock);
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry *device_rom_region() const override;
// overrides of standard a2bus slot functions
virtual uint8_t read_c0nx(uint8_t offset) override;
virtual void write_c0nx(uint8_t offset, uint8_t data) override;
virtual bool take_c800() override;
virtual u8 read_inh_rom(u16 offset) override;
virtual bool inh_check(uint16_t offset, bool bIsWrite) override;
TIMER_DEVICE_CALLBACK_MEMBER(timercallback);
private:
required_device<cpu_device> m_z80;
required_region_ptr<u8> m_prom;
required_device<timer_device> m_timer;
bool m_bEnabled;
bool m_reset;
bool m_enable_fffx;
uint8_t dma_r(offs_t offset);
void dma_w(offs_t offset, uint8_t data);
void z80_io(address_map &map);
void z80_mem(address_map &map);
};
// device type definition
DECLARE_DEVICE_TYPE(A2BUS_SOFTCARD3, a2bus_softcard3_device)
#endif // MAME_BUS_A2BUS_SOFTCARD3_H
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