mirror of
https://github.com/holub/mame
synced 2025-04-17 05:53:36 +03:00
119 lines
3.3 KiB
C++
119 lines
3.3 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Fabio Priuli
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#ifndef __M5_SLOT_H
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#define __M5_SLOT_H
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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/* PCB */
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enum
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{
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EM_5 = 1,
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MEM64KBI,
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MEM64KBF,
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MEM64KRX
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};
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#define M5_STD 0
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// ======================> device_m5_cart_interface
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class device_m5_cart_interface : public device_slot_card_interface
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{
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public:
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// construction/destruction
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device_m5_cart_interface(const machine_config &mconfig, device_t &device);
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virtual ~device_m5_cart_interface();
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// reading and writing
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virtual DECLARE_READ8_MEMBER(read_rom) { return 0xff; }
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virtual DECLARE_READ8_MEMBER(read_ram) { return 0xff; }
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virtual DECLARE_WRITE8_MEMBER(write_ram) {}
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void rom_alloc(UINT32 size, const char *tag);
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void ram_alloc(UINT32 size);
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UINT8* get_rom_base() { return m_rom; }
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UINT8* get_ram_base() { return &m_ram[0]; }
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UINT32 get_rom_size() { return m_rom_size; }
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UINT32 get_ram_size() { return m_ram.size(); }
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void save_ram() { device().save_item(NAME(m_ram)); }
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protected:
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// internal state
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UINT8 *m_rom;
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UINT32 m_rom_size;
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dynamic_buffer m_ram;
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};
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// ======================> m5_cart_slot_device
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class m5_cart_slot_device : public device_t,
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public device_image_interface,
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public device_slot_interface
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{
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public:
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// construction/destruction
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m5_cart_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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virtual ~m5_cart_slot_device();
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// device-level overrides
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virtual void device_start() override;
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virtual void device_config_complete() override;
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// image-level overrides
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virtual bool call_load() override;
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virtual void call_unload() override {}
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virtual bool call_softlist_load(software_list_device &swlist, const char *swname, const rom_entry *start_entry) override;
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int get_type() { return m_type; }
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void save_ram() { if (m_cart && m_cart->get_ram_size()) m_cart->save_ram(); }
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virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
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virtual bool is_readable() const override { return 1; }
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virtual bool is_writeable() const override { return 0; }
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virtual bool is_creatable() const override { return 0; }
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virtual bool must_be_loaded() const override { return 0; }
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virtual bool is_reset_on_load() const override { return 1; }
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virtual const option_guide *create_option_guide() const override { return NULL; }
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virtual const char *image_interface() const override { return "m5_cart"; }
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virtual const char *file_extensions() const override { return "bin,rom"; }
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// slot interface overrides
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virtual std::string get_default_card_software() override;
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// reading and writing
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virtual DECLARE_READ8_MEMBER(read_rom);
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virtual DECLARE_READ8_MEMBER(read_ram);
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virtual DECLARE_WRITE8_MEMBER(write_ram);
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protected:
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int m_type;
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device_m5_cart_interface* m_cart;
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};
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// device type definition
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extern const device_type M5_CART_SLOT;
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/***************************************************************************
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DEVICE CONFIGURATION MACROS
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***************************************************************************/
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#define M5SLOT_ROM_REGION_TAG ":cart:rom"
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#define MCFG_M5_CARTRIDGE_ADD(_tag,_slot_intf,_def_slot) \
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MCFG_DEVICE_ADD(_tag, M5_CART_SLOT, 0) \
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MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
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#endif
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