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// 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_t clock);
virtual ~coco_vhd_image_device();
// image-level overrides
virtual image_init_result call_load() override;
virtual iodevice_t image_type() const override { return IO_HARDDISK; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 1; }
virtual bool is_creatable() const override { return 1; }
virtual bool must_be_loaded() const override { return 0; }
virtual bool is_reset_on_load() const override { return 0; }
virtual const char *file_extensions() const override { return "vhd"; }
// specific implementation
DECLARE_READ8_MEMBER(read) { return read(offset); }
DECLARE_WRITE8_MEMBER(write) { write(offset, data); }
uint8_t read(offs_t offset);
void write(offs_t offset, uint8_t data);
protected:
// device-level overrides
virtual void device_config_complete() override;
virtual void device_start() override;
void coco_vhd_readwrite(uint8_t data);
private:
cpu_device * m_cpu;
address_space * m_cpu_space;
uint32_t m_logical_record_number;
uint32_t m_buffer_address;
uint8_t 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 */
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