diff options
Diffstat (limited to 'src/emu/bus/crvision/slot.h')
-rw-r--r-- | src/emu/bus/crvision/slot.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/src/emu/bus/crvision/slot.h b/src/emu/bus/crvision/slot.h new file mode 100644 index 00000000000..8029eba2752 --- /dev/null +++ b/src/emu/bus/crvision/slot.h @@ -0,0 +1,107 @@ +#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 |