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#ifndef __NES_GGENIE_H
#define __NES_GGENIE_H
#include "machine/nes_nxrom.h"
// ======================> nes_ggenie_device
class nes_ggenie_device : public nes_nrom_device
{
public:
// construction/destruction
nes_ggenie_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// device-level overrides
virtual void device_start();
virtual DECLARE_READ8_MEMBER(read_l);
virtual DECLARE_READ8_MEMBER(read_m);
virtual DECLARE_READ8_MEMBER(read_h);
virtual DECLARE_WRITE8_MEMBER(write_l);
virtual DECLARE_WRITE8_MEMBER(write_m);
virtual DECLARE_WRITE8_MEMBER(write_h);
virtual DECLARE_READ8_MEMBER(chr_r);
virtual DECLARE_WRITE8_MEMBER(chr_w);
virtual DECLARE_READ8_MEMBER(nt_r);
virtual DECLARE_WRITE8_MEMBER(nt_w);
void hblank_irq(int scanline, int vblank, int blanked) { if (m_gg_bypass && m_ggslot->m_cart) m_ggslot->m_cart->hblank_irq(scanline, vblank, blanked); }
void scanline_irq(int scanline, int vblank, int blanked) { if (m_gg_bypass && m_ggslot->m_cart) m_ggslot->m_cart->scanline_irq(scanline, vblank, blanked); }
void ppu_latch(offs_t offset) { if (m_gg_bypass && m_ggslot->m_cart) m_ggslot->m_cart->ppu_latch(offset); }
virtual machine_config_constructor device_mconfig_additions() const;
virtual void pcb_reset();
private:
// emulate the Game Genie!
required_device<nes_cart_slot_device> m_ggslot;
int m_gg_bypass;
// GG codes
UINT16 m_gg_addr[3];
UINT8 m_gg_repl[3];
UINT8 m_gg_comp[3];
int m_gg_disable[3];
int m_gg_is_comp[3];
};
// device type definition
extern const device_type NES_GGENIE;
#endif
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