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// license: BSD-3-Clause
// copyright-holders: Dirk Best
/***************************************************************************
Data East IRQ Controller
***************************************************************************/
#ifndef MAME_MACHINE_DECO_IRQ_H
#define MAME_MACHINE_DECO_IRQ_H
#pragma once
#include "screen.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class deco_irq_device : public device_t
{
public:
// construction/destruction
deco_irq_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// configuration
auto lightgun1_callback() { return m_lightgun1_cb.bind(); }
auto lightgun2_callback() { return m_lightgun2_cb.bind(); }
auto lightgun_irq_callback() { return m_lightgun_irq_cb.bind(); }
auto raster1_irq_callback() { return m_raster1_irq_cb.bind(); }
auto raster2_irq_callback() { return m_raster2_irq_cb.bind(); }
auto vblank_irq_callback() { return m_vblank_irq_cb.bind(); }
// configuration
template <typename T> void set_screen_tag(T &&tag) { m_screen.set_tag(std::forward<T>(tag)); }
TIMER_CALLBACK_MEMBER(scanline_callback);
void map(address_map &map);
void control_w(u8 data);
u8 scanline_r();
void scanline_w(u8 data);
u8 raster_irq_ack_r();
void vblank_irq_ack_w(u8 data);
u8 status_r();
void raster_irq_ack();
DECLARE_WRITE_LINE_MEMBER(lightgun1_trigger_w);
DECLARE_WRITE_LINE_MEMBER(lightgun2_trigger_w);
DECLARE_WRITE_LINE_MEMBER(lightgun_irq_ack_w);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
private:
required_device<screen_device> m_screen;
emu_timer *m_scanline_timer;
enum
{
RASTER1_IRQ = 1,
RASTER2_IRQ = 0
};
// callbacks
devcb_read8 m_lightgun1_cb;
devcb_read8 m_lightgun2_cb;
devcb_write_line m_lightgun_irq_cb;
devcb_write_line m_raster1_irq_cb;
devcb_write_line m_raster2_irq_cb;
devcb_write_line m_vblank_irq_cb;
bool m_lightgun_irq, m_raster_irq, m_vblank_irq;
int m_raster_irq_target;
bool m_raster_irq_masked;
u8 m_raster_irq_scanline;
int m_lightgun_latch;
};
// device type definition
DECLARE_DEVICE_TYPE(DECO_IRQ, deco_irq_device)
#endif // MAME_MACHINE_DECO_IRQ_H
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