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// license:BSD-3-Clause
// copyright-holders:etabeta
#ifndef __CRVISION_SLOT_H
#define __CRVISION_SLOT_H
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/* PCB */
enum
{
CRV_4K = 0,
CRV_6K,
CRV_8K,
CRV_10K,
CRV_12K,
CRV_16K,
CRV_18K
};
// ======================> device_crvision_cart_interface
class device_crvision_cart_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_crvision_cart_interface(const machine_config &mconfig, device_t &device);
virtual ~device_crvision_cart_interface();
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom40) { return 0xff; }
virtual DECLARE_READ8_MEMBER(read_rom80) { return 0xff; }
void rom_alloc(UINT32 size, const char *tag);
UINT8* get_rom_base() { return m_rom; }
UINT32 get_rom_size() { return m_rom_size; }
protected:
// internal state
UINT8 *m_rom;
UINT32 m_rom_size;
};
// ======================> crvision_cart_slot_device
class crvision_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
crvision_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~crvision_cart_slot_device();
// device-level overrides
virtual void device_start();
virtual void device_config_complete();
// image-level overrides
virtual bool call_load();
virtual void call_unload() {}
virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry);
int get_type() { return m_type; }
virtual iodevice_t image_type() const { return IO_CARTSLOT; }
virtual bool is_readable() const { return 1; }
virtual bool is_writeable() const { return 0; }
virtual bool is_creatable() const { return 0; }
virtual bool must_be_loaded() const { return 0; }
virtual bool is_reset_on_load() const { return 1; }
virtual const option_guide *create_option_guide() const { return NULL; }
virtual const char *image_interface() const { return "crvision_cart"; }
virtual const char *file_extensions() const { return "bin,rom"; }
// slot interface overrides
virtual void get_default_card_software(astring &result);
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom40);
virtual DECLARE_READ8_MEMBER(read_rom80);
protected:
int m_type;
device_crvision_cart_interface* m_cart;
};
// device type definition
extern const device_type CRVISION_CART_SLOT;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define CRVSLOT_ROM_REGION_TAG ":cart:rom"
#define MCFG_CRVISION_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
MCFG_DEVICE_ADD(_tag, CRVISION_CART_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) \
#endif
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