mame/src/devices/bus/m5/slot.h
Miodrag Milanovic a29920336d real fix (nw)
2016-02-08 19:29:42 +01:00

119 lines
3.3 KiB
C++

// license:BSD-3-Clause
// copyright-holders:Fabio Priuli
#ifndef __M5_SLOT_H
#define __M5_SLOT_H
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
/* PCB */
enum
{
EM_5 = 1,
MEM64KBI,
MEM64KBF,
MEM64KRX
};
#define M5_STD 0
// ======================> device_m5_cart_interface
class device_m5_cart_interface : public device_slot_card_interface
{
public:
// construction/destruction
device_m5_cart_interface(const machine_config &mconfig, device_t &device);
virtual ~device_m5_cart_interface();
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; }
virtual DECLARE_WRITE8_MEMBER(write_ram) {}
void rom_alloc(UINT32 size, const char *tag);
void ram_alloc(UINT32 size);
UINT8* get_rom_base() { return m_rom; }
UINT8* get_ram_base() { return &m_ram[0]; }
UINT32 get_rom_size() { return m_rom_size; }
UINT32 get_ram_size() { return m_ram.size(); }
void save_ram() { device().save_item(NAME(m_ram)); }
protected:
// internal state
UINT8 *m_rom;
UINT32 m_rom_size;
dynamic_buffer m_ram;
};
// ======================> m5_cart_slot_device
class m5_cart_slot_device : public device_t,
public device_image_interface,
public device_slot_interface
{
public:
// construction/destruction
m5_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
virtual ~m5_cart_slot_device();
// device-level overrides
virtual void device_start() override;
virtual void device_config_complete() override;
// image-level overrides
virtual bool call_load() override;
virtual void call_unload() override {}
virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override;
int get_type() { return m_type; }
void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); }
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 0; }
virtual bool is_creatable() const override { return 0; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 1; }
virtual const option_guide *create_option_guide() const override { return NULL; }
virtual const char *image_interface() const override { return "m5_cart"; }
virtual const char *file_extensions() const override { return "bin,rom"; }
// slot interface overrides
virtual std::string get_default_card_software() override;
// reading and writing
virtual DECLARE_READ8_MEMBER(read_rom);
virtual DECLARE_READ8_MEMBER(read_ram);
virtual DECLARE_WRITE8_MEMBER(write_ram);
protected:
int m_type;
device_m5_cart_interface* m_cart;
};
// device type definition
extern const device_type M5_CART_SLOT;
/***************************************************************************
DEVICE CONFIGURATION MACROS
***************************************************************************/
#define M5SLOT_ROM_REGION_TAG ":cart:rom"
#define MCFG_M5_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
MCFG_DEVICE_ADD(_tag, M5_CART_SLOT, 0) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#endif