mirror of
https://github.com/holub/mame
synced 2025-05-22 05:38:52 +03:00
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
// license:BSD-3-Clause
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// copyright-holders:Olivier Galibert
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#ifndef MFI_DSK_H
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#define MFI_DSK_H
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#include "flopimg.h"
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class mfi_format : public floppy_image_format_t
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{
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public:
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mfi_format();
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virtual int identify(io_generic *io, UINT32 form_factor) override;
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virtual bool load(io_generic *io, UINT32 form_factor, floppy_image *image) override;
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virtual bool save(io_generic *io, floppy_image *image) override;
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virtual const char *name() const override;
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virtual const char *description() const override;
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virtual const char *extensions() const override;
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virtual bool supports_save() const override;
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private:
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enum {
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TIME_MASK = 0x0fffffff,
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MG_MASK = 0xf0000000,
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MG_SHIFT = 28,
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MG_A = (0 << MG_SHIFT),
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MG_B = (1 << MG_SHIFT),
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MG_N = (2 << MG_SHIFT),
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MG_D = (3 << MG_SHIFT),
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RESOLUTION_SHIFT = 30,
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CYLINDER_MASK = 0x3fffffff
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};
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static const char sign[16];
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struct header {
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char sign[16];
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unsigned int cyl_count, head_count;
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unsigned int form_factor, variant;
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};
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struct entry {
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unsigned int offset, compressed_size, uncompressed_size, write_splice;
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};
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};
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extern const floppy_format_type FLOPPY_MFI_FORMAT;
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#endif /* MFI_DSK_H */
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