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// license:BSD-3-Clause
// copyright-holders:Carl
#ifndef MAME_MACHINE_M20_8086_H
#define MAME_MACHINE_M20_8086_H
#include "cpu/i86/i86.h"
#include "machine/pic8259.h"
class m20_8086_device : public device_t
{
public:
m20_8086_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ16_MEMBER(z8000_io_r);
DECLARE_WRITE16_MEMBER(z8000_io_w);
DECLARE_WRITE_LINE_MEMBER(vi_w);
DECLARE_WRITE_LINE_MEMBER(nvi_w);
DECLARE_WRITE16_MEMBER(handshake_w);
void halt() { m_8086->set_input_line(INPUT_LINE_HALT, ASSERT_LINE); }
bool halted() const { return m_8086_halt; }
void i86_io(address_map &map);
void i86_prog(address_map &map);
protected:
void device_start() override;
void device_reset() override;
virtual const tiny_rom_entry *device_rom_region() const override;
virtual void device_add_mconfig(machine_config &config) override;
private:
required_device<cpu_device> m_8086;
required_device<cpu_device> m_maincpu;
required_device<pic8259_device> m_pic;
bool m_8086_halt;
int m_nvi, m_vi;
IRQ_CALLBACK_MEMBER(int_cb);
};
DECLARE_DEVICE_TYPE(M20_8086, m20_8086_device)
#endif // MAME_MACHINE_M20_8086_H
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