// license:LGPL-2.1+ // copyright-holders:Angelo Salese #ifndef MAME_VIDEO_MB_VCU_H #define MAME_VIDEO_MB_VCU_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> mb_vcu_device class mb_vcu_device : public device_t, public device_memory_interface, public device_video_interface, public device_palette_interface { public: // construction/destruction mb_vcu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // configuration template void set_host_space(T &&tag, int spacenum) { m_host_space.set_tag(std::forward(tag), spacenum); } // I/O operations void write_vregs(offs_t offset, uint8_t data); uint8_t read_ram(offs_t offset); void write_ram(offs_t offset, uint8_t data); uint8_t load_params(offs_t offset); uint8_t load_gfx(offs_t offset); uint8_t load_set_clr(offs_t offset); void background_color_w(uint8_t data); uint8_t status_r(); void vbank_w(uint8_t data); void vbank_clear_w(uint8_t data); uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); void screen_eof(); protected: // device-level overrides virtual void device_validity_check(validity_checker &valid) const override; virtual void device_start() override ATTR_COLD; virtual void device_reset() override ATTR_COLD; virtual space_config_vector memory_space_config() const override; virtual uint32_t palette_entries() const noexcept override { return 256 + 1; } virtual uint32_t palette_indirect_entries() const noexcept override { return 256; } private: inline uint8_t read_byte(offs_t address); inline void write_byte(offs_t address, uint8_t data); inline uint8_t read_io(offs_t address); inline void write_io(offs_t address, uint8_t data); uint8_t paletteram_r(offs_t offset); void paletteram_w(offs_t offset, uint8_t data); void pal_ram(address_map &map) ATTR_COLD; void vram(address_map &map) ATTR_COLD; const address_space_config m_videoram_space_config; const address_space_config m_paletteram_space_config; required_address_space m_host_space; memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_memory; uint8_t m_status; std::unique_ptr m_ram; std::unique_ptr m_palram; uint16_t m_param_offset_latch; int16_t m_xpos, m_ypos; uint16_t m_color; uint8_t m_mode; uint16_t m_pix_xsize, m_pix_ysize; uint8_t m_vregs[4]; uint8_t m_bk_color; uint8_t m_vbank; }; // device type definition DECLARE_DEVICE_TYPE(MB_VCU, mb_vcu_device) #endif // MAME_VIDEO_MB_VCU_H