// license:LGPL-2.1+ // copyright-holders:Michael Zapf /**************************************************************************** Horizon Ramdisk See horizon.c for documentation Michael Zapf February 2012 *****************************************************************************/ #ifndef MAME_BUS_TI99_PEB_HORIZON_H #define MAME_BUS_TI99_PEB_HORIZON_H #pragma once #include "peribox.h" #include "machine/ram.h" #include "machine/74259.h" namespace bus::ti99::peb { class horizon_ramdisk_device : public device_t, public device_ti99_peribox_card_interface, public device_nvram_interface { public: horizon_ramdisk_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); void readz(offs_t offset, uint8_t *value) override; void write(offs_t offset, uint8_t data) override; void crureadz(offs_t offset, uint8_t *value) override; void cruwrite(offs_t offset, uint8_t data) override; DECLARE_INPUT_CHANGED_MEMBER( hs_changed ); protected: virtual void device_start() override; virtual void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; virtual void nvram_default() override; virtual bool nvram_read(util::read_stream &file) override; virtual bool nvram_write(util::write_stream &file) override; virtual bool nvram_can_write() const override; private: required_device m_ram; required_device m_dsrram; required_device m_optram; required_device m_crulatch_u4; required_device m_crulatch_u3; void get_mem_size(int& ramsize, int& dsrsize); void get_address_prefix(); void read_write(offs_t offset, uint8_t *value, bool write); bool m_32k_installed; bool m_phoenix_accessed; bool m_dsr32k; bool m_128kx8; bool m_geneve_mode; bool m_phoenix_split; bool m_hideswitch; bool m_rambo_supported; // Do not save if nothing was modified. bool m_modified; int m_page; int m_bank; int m_ramsize; int m_cru_base_horizon; int m_cru_base_phoenix; // Debugging int m_current_bank; int m_current_page; }; } // end namespace bus::ti99::peb DECLARE_DEVICE_TYPE_NS(TI99_HORIZON, bus::ti99::peb, horizon_ramdisk_device) #endif // MAME_BUS_TI99_PEB_HORIZON_H