// license:BSD-3-Clause // copyright-holders:Kaz, Fabio Priuli #ifndef MAME_BUS_NES_SUBOR_H #define MAME_BUS_NES_SUBOR_H #pragma once #include "nxrom.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> nes_subor0_device class nes_subor0_device : public nes_nrom_device { public: // construction/destruction nes_subor0_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual void write_h(offs_t offset, uint8_t data) override; virtual void pcb_reset() override; protected: // device-level overrides virtual void device_start() override; private: uint8_t m_reg[4]; }; // ======================> nes_subor1_device class nes_subor1_device : public nes_nrom_device { public: // construction/destruction nes_subor1_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual void write_h(offs_t offset, uint8_t data) override; virtual void pcb_reset() override; protected: // device-level overrides virtual void device_start() override; private: uint8_t m_reg[4]; }; // ======================> nes_subor2_device class nes_subor2_device : public nes_nrom_device { public: // construction/destruction nes_subor2_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); virtual uint8_t nt_r(offs_t offset) override; virtual void write_l(offs_t offset, uint8_t data) override; virtual uint8_t read_l(offs_t offset) override; virtual void ppu_latch(offs_t offset) override; virtual void pcb_reset() override; protected: // device-level overrides virtual void device_start() override; private: void update_banks(); uint8_t m_switch_reg, m_bank_reg, m_chr_banking, m_page; }; // device type definition DECLARE_DEVICE_TYPE(NES_SUBOR0, nes_subor0_device) DECLARE_DEVICE_TYPE(NES_SUBOR1, nes_subor1_device) DECLARE_DEVICE_TYPE(NES_SUBOR2, nes_subor2_device) #endif // MAME_BUS_NES_SUBOR_H