// license:BSD-3-Clause // copyright-holders:Nathan Woods /*************************************************************************** coco_vhd.h Color Computer Virtual Hard Drives ***************************************************************************/ #ifndef COCOVHD_H #define COCOVHD_H /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ // ======================> coco_vhd_image_device class coco_vhd_image_device : public device_t, public device_image_interface { public: // construction/destruction coco_vhd_image_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); virtual ~coco_vhd_image_device(); // image-level overrides virtual bool call_load(); virtual iodevice_t image_type() const { return IO_HARDDISK; } virtual bool is_readable() const { return 1; } virtual bool is_writeable() const { return 1; } virtual bool is_creatable() const { return 1; } virtual bool must_be_loaded() const { return 0; } virtual bool is_reset_on_load() const { return 0; } virtual const char *image_interface() const { return nullptr; } virtual const char *file_extensions() const { return "vhd"; } virtual const option_guide *create_option_guide() const { return nullptr; } // specific implementation DECLARE_READ8_MEMBER(read) { return read(offset); } DECLARE_WRITE8_MEMBER(write) { write(offset, data); } UINT8 read(offs_t offset); void write(offs_t offset, UINT8 data); protected: // device-level overrides virtual void device_config_complete(); virtual void device_start(); void coco_vhd_readwrite(UINT8 data); private: cpu_device * m_cpu; address_space * m_cpu_space; UINT32 m_logical_record_number; UINT32 m_buffer_address; UINT8 m_status; }; // device type definition extern const device_type COCO_VHD; /*************************************************************************** DEVICE CONFIGURATION MACROS ***************************************************************************/ #define MCFG_COCO_VHD_ADD(_tag) \ MCFG_DEVICE_ADD(_tag, COCO_VHD, 0) #endif /* COCOVHD_H */