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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Atari Portfolio Memory Card port emulation
**********************************************************************
Pin COMMON RAM OPTROM Mask ROM
32k 64k 128k
1 A16
2 A15
3 VBB VPP NC VPP NC
4 A12
5 A7
6 A6
7 A5
8 A4
9 A3
10 A2
11 A1
12 A0
13 D0
14 D1
15 D2
16 GND
17 D3
18 D4
19 D5
20 D6
21 D7
22 CE
23 A10
24 OE OE OE/VPP OE OE
25 A11
26 A9
27 A8
28 A13
29 A14
30 WE NC NC PGM NC
31 VCC
32 CDET
**********************************************************************/
#pragma once
#ifndef __PORTFOLIO_MEMORY_CARD_SLOT__
#define __PORTFOLIO_MEMORY_CARD_SLOT__
#include "emu.h"
#include "softlist_dev.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define PORTFOLIO_MEMORY_CARD_SLOT_A_TAG "ccma"
#define PORTFOLIO_MEMORY_CARD_SLOT_B_TAG "ccmb"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_PORTFOLIO_MEMORY_CARD_SLOT_ADD(_tag, _slot_intf, _def_slot) \
MCFG_DEVICE_ADD(_tag, PORTFOLIO_MEMORY_CARD_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> device_portfolio_memory_card_slot_interface
class portfolio_memory_card_slot_t;
class device_portfolio_memory_card_slot_interface : public device_slot_card_interface
{
friend class portfolio_memory_card_slot_t;
public:
// construction/destruction
device_portfolio_memory_card_slot_interface(const machine_config &mconfig, device_t &device);
virtual ~device_portfolio_memory_card_slot_interface() { }
virtual bool cdet() { return 1; }
virtual UINT8 nrdi_r(address_space &space, offs_t offset) { return 0xff; };
virtual void nwri_w(address_space &space, offs_t offset, UINT8 data) { };
protected:
optional_shared_ptr<UINT8> m_rom;
optional_shared_ptr<UINT8> m_nvram;
portfolio_memory_card_slot_t *m_slot;
};
// ======================> portfolio_memory_card_slot_t
class portfolio_memory_card_slot_t : public device_t,
public device_slot_interface,
public device_image_interface
{
public:
// construction/destruction
portfolio_memory_card_slot_t(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~portfolio_memory_card_slot_t() { }
// computer interface
bool cdet_r() { return (m_card != nullptr) ? m_card->cdet() : 1; }
DECLARE_READ8_MEMBER( nrdi_r ) { return (m_card != nullptr) ? m_card->nrdi_r(space, offset) : 0xff; }
DECLARE_WRITE8_MEMBER( nwri_w ) { if (m_card != nullptr) m_card->nwri_w(space, offset, data); }
protected:
// device-level overrides
virtual void device_config_complete() override { update_names(); }
virtual void device_start() override;
// image-level overrides
virtual image_init_result call_load() override;
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 1; }
virtual bool is_creatable() const override { return 1; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 1; }
virtual const char *image_interface() const override { return "pofo_card"; }
virtual const char *file_extensions() const override { return "rom,bin"; }
// slot interface overrides
virtual std::string get_default_card_software() override;
device_portfolio_memory_card_slot_interface *m_card;
};
// device type definition
extern const device_type PORTFOLIO_MEMORY_CARD_SLOT;
SLOT_INTERFACE_EXTERN( portfolio_memory_cards );
#endif
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