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// license:LGPL-2.1+
// copyright-holders:Michael Zapf
/****************************************************************************
Geneve "Memex" memory expansion
See memex.c for documentation
Michael Zapf, February 2011
February 2012: Rewritten as class
*****************************************************************************/
#ifndef MAME_BUS_TI99_PEB_MEMEX_H
#define MAME_BUS_TI99_PEB_MEMEX_H
#pragma once
#include "peribox.h"
#include "machine/ram.h"
namespace bus::ti99::peb {
class geneve_memex_device : public device_t, public device_ti99_peribox_card_interface
{
public:
geneve_memex_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &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;
virtual ioport_constructor device_input_ports() const override;
private:
bool access_enabled(offs_t offset);
required_device<ram_device> m_ram;
uint8_t m_switches;
};
} // end namespace bus::ti99::peb
DECLARE_DEVICE_TYPE_NS(TI99_MEMEX, bus::ti99::peb, geneve_memex_device)
#endif // MAME_BUS_TI99_PEB_MEMEX_H
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