// license:BSD-3-Clause // copyright-holders:Fabio Priuli #ifndef MAME_BUS_NES_GGENIE_H #define MAME_BUS_NES_GGENIE_H #pragma once #include "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_t clock); virtual DECLARE_READ8_MEMBER(read_l) override; virtual DECLARE_READ8_MEMBER(read_m) override; virtual DECLARE_READ8_MEMBER(read_h) override; virtual DECLARE_WRITE8_MEMBER(write_l) override; virtual DECLARE_WRITE8_MEMBER(write_m) override; virtual DECLARE_WRITE8_MEMBER(write_h) override; virtual DECLARE_READ8_MEMBER(chr_r) override; virtual DECLARE_WRITE8_MEMBER(chr_w) override; virtual DECLARE_READ8_MEMBER(nt_r) override; virtual DECLARE_WRITE8_MEMBER(nt_w) override; void hblank_irq(int scanline, int vblank, int blanked) override { 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) override { if (m_gg_bypass && m_ggslot->m_cart) m_ggslot->m_cart->scanline_irq(scanline, vblank, blanked); } void ppu_latch(offs_t offset) override { if (m_gg_bypass && m_ggslot->m_cart) m_ggslot->m_cart->ppu_latch(offset); } virtual void pcb_reset() override; virtual void pcb_start(running_machine &machine, uint8_t *ciram_ptr, bool cart_mounted) override; protected: // device-level overrides virtual void device_start() override; virtual void device_add_mconfig(machine_config &config) override; private: // emulate the Game Genie! required_device m_ggslot; int m_gg_bypass; // GG codes uint16_t m_gg_addr[3]; uint8_t m_gg_repl[3]; uint8_t m_gg_comp[3]; int m_gg_disable[3]; int m_gg_is_comp[3]; }; // device type definition DECLARE_DEVICE_TYPE(NES_GGENIE, nes_ggenie_device) #endif // MAME_BUS_NES_GGENIE_H