// license:LGPL-2.1+ // copyright-holders:Michael Zapf /**************************************************************************** TI-99 SuperAMS memory expansion See samsmem.c for documentation Michael Zapf September 2010 February 2012: Rewritten as class *****************************************************************************/ #ifndef MAME_BUS_TI99_PEB_SAMSMEM_H #define MAME_BUS_TI99_PEB_SAMSMEM_H #pragma once #include "peribox.h" #include "machine/74259.h" #include "machine/ram.h" namespace bus::ti99::peb { class sams_memory_expansion_device : public device_t, public device_ti99_peribox_card_interface { public: sams_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; void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; private: DECLARE_WRITE_LINE_MEMBER(access_mapper_w); DECLARE_WRITE_LINE_MEMBER(map_mode_w); // Console RAM required_device m_ram; required_device m_crulatch; int m_mapper[16]; bool m_map_mode; bool m_access_mapper; }; } // end namespace bus::ti99::peb DECLARE_DEVICE_TYPE_NS(TI99_SAMSMEM, bus::ti99::peb, sams_memory_expansion_device) #endif // MAME_BUS_TI99_PEB_SAMSMEM_H