// license:LGPL-2.1+ // copyright-holders:Michael Zapf /**************************************************************************** TI-99 Myarc memory expansion See myarcmem.c for documentation Michael Zapf, September 2010 February 2012: Rewritten as class *****************************************************************************/ #ifndef MAME_BUS_TI99_PEB_MYARCMEM_H #define MAME_BUS_TI99_PEB_MYARCMEM_H #pragma once #include "peribox.h" #include "machine/ram.h" namespace bus::ti99::peb { class myarc_memory_expansion_device : public device_t, public device_ti99_peribox_card_interface { public: myarc_memory_expansion_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; protected: void device_start() override ATTR_COLD; void device_reset() override ATTR_COLD; const tiny_rom_entry *device_rom_region() const override; ioport_constructor device_input_ports() const override; virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; private: int get_base(int offset); required_device m_ram; uint8_t* m_dsrrom; int m_bank; int m_size; }; } // end namespace bus::ti99::peb DECLARE_DEVICE_TYPE_NS(TI99_MYARCMEM, bus::ti99::peb, myarc_memory_expansion_device) #endif // MAME_BUS_TI99_PEB_MYARCMEM_H