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// license:LGPL-2.1+
// copyright-holders:Michael Zapf
/****************************************************************************
Multi cartridge connector.
We set the number of slots to 4, although we may have up to 16. From a
logical point of view we could have 256, but the operating system only checks
the first 16 banks.
*****************************************************************************/
#ifndef MAME_BUS_TI99_GROMPORT_MULTICONN_H
#define MAME_BUS_TI99_GROMPORT_MULTICONN_H
#pragma once
#include "bus/ti99/ti99defs.h"
#include "cartridges.h"
namespace bus { namespace ti99 { namespace gromport {
class ti99_multi_cart_conn_device : public cartridge_connector_device
{
public:
ti99_multi_cart_conn_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
DECLARE_READ8Z_MEMBER(readz) override;
DECLARE_WRITE8_MEMBER(write) override;
DECLARE_READ8Z_MEMBER(crureadz) override;
DECLARE_WRITE8_MEMBER(cruwrite) override;
DECLARE_WRITE_LINE_MEMBER(romgq_line) override;
void set_gromlines(line_state mline, line_state moline, line_state gsq) override;
DECLARE_WRITE_LINE_MEMBER(gclock_in) override;
void insert(int index, ti99_cartridge_device* cart) override;
void remove(int index) override;
DECLARE_INPUT_CHANGED_MEMBER( switch_changed );
bool is_grom_idle() override;
protected:
static constexpr unsigned NUMBER_OF_CARTRIDGE_SLOTS = 4;
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;
private:
bool m_readrom;
int m_active_slot;
int m_fixed_slot;
int m_next_free_slot;
ti99_cartridge_device* m_cartridge[NUMBER_OF_CARTRIDGE_SLOTS];
void set_slot(int slotnumber);
int get_active_slot(bool changebase, offs_t offset);
};
} } } // end namespace bus::ti99::gromport
DECLARE_DEVICE_TYPE_NS(TI99_GROMPORT_MULTI, bus::ti99::gromport, ti99_multi_cart_conn_device)
#endif // MAME_BUS_TI99_GROMPORT_MULTICONN_H
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