summaryrefslogblamecommitdiffstatshomepage
path: root/src/lib/formats/g64_dsk.h
blob: 1c032a097593f28492caf4614314bfbdf21f7681 (plain) (tree)
1
2
3
4
5
6
7
8
9

                               



                                                                      
                                             

                                                                      

                              
 
            

                    
                     
 

                                               

                     
 

                                                                                              





                                                                        

          

            










                                         

          
                                                
 
                                                                                                                             



                                                  
                                
// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*********************************************************************

    formats/g64_dsk.h

    Commodore 1541/1571 GCR disk image format

*********************************************************************/
#ifndef MAME_FORMATS_G64_DSK_H
#define MAME_FORMATS_G64_DSK_H

#pragma once

#include "flopimg.h"
#include "imageutl.h"

class g64_format : public floppy_image_format_t
{
public:
	g64_format();

	virtual int identify(io_generic *io, uint32_t form_factor) override;
	virtual bool load(io_generic *io, uint32_t form_factor, floppy_image *image) override;
	virtual bool save(io_generic *io, floppy_image *image) override;

	virtual const char *name() const override;
	virtual const char *description() const override;
	virtual const char *extensions() const override;
	virtual bool supports_save() const override { return true; }

protected:
	enum
	{
		POS_SIGNATURE = 0x0,
		POS_VERSION = 0x8,
		POS_TRACK_COUNT = 0x9,
		POS_MAX_TRACK_SIZE = 0xa,
		POS_TRACK_OFFSET = 0xc
	};

	enum
	{
		TRACK_LENGTH = 0x1ef8,
		TRACK_COUNT = 84
	};

	static const uint32_t c1541_cell_size[];

	int generate_bitstream(int track, int head, int speed_zone, uint8_t *trackbuf, int &track_size, floppy_image *image);
};

extern const floppy_format_type FLOPPY_G64_FORMAT;

#endif // MAME_FORMATS_G64_DSK_H