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// license:BSD-3-Clause
// copyright-holders:Nathan Woods
/***************************************************************************
coco_multi.h
Multi-Pak interface emulation
***************************************************************************/
#ifndef MAME_BUS_COCO_COCO_MULTI_H
#define MAME_BUS_COCO_COCO_MULTI_H
#pragma once
#include "cococart.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> coco_multipak_device
class coco_multipak_device :
public device_t,
public device_cococart_interface
{
public:
// construction/destruction
coco_multipak_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
// optional information overrides
virtual machine_config_constructor device_mconfig_additions() const override;
virtual uint8_t* get_cart_base() override;
// these are only public so they can be in a MACHINE_CONFIG_START
// declaration; don't think about them as publically accessable
DECLARE_WRITE_LINE_MEMBER(multi_slot1_cart_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot1_nmi_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot1_halt_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot2_cart_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot2_nmi_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot2_halt_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot3_cart_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot3_nmi_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot3_halt_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot4_cart_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot4_nmi_w);
DECLARE_WRITE_LINE_MEMBER(multi_slot4_halt_w);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
virtual DECLARE_READ8_MEMBER(read) override;
virtual DECLARE_WRITE8_MEMBER(write) override;
virtual void set_sound_enable(bool sound_enable) override;
private:
// device references
required_device_array<cococart_slot_device, 4> m_slots;
// internal state
uint8_t m_select;
// internal accessors
cococart_slot_device &owning_slot();
int active_scs_slot_number() const;
int active_cts_slot_number() const;
cococart_slot_device &slot(int slot_number);
cococart_slot_device &active_scs_slot();
cococart_slot_device &active_cts_slot();
// methods
void set_select(uint8_t new_select);
DECLARE_WRITE8_MEMBER(ff7f_write);
void update_line(int slot_number, cococart_slot_device::line line);
};
// device type definition
DECLARE_DEVICE_TYPE(COCO_MULTIPAK, coco_multipak_device)
#endif // MAME_BUS_COCO_COCO_MULTI_H
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