// license:BSD-3-Clause // copyright-holders: F. Ulivi /********************************************************************* img_dsk.h "IMG" disk format for SSDD Intel MDS-II 8" disks *********************************************************************/ #ifndef MAME_FORMATS_IMG_DSK_H #define MAME_FORMATS_IMG_DSK_H #pragma once #include "flopimg.h" #include class img_format : public floppy_image_format_t { public: // Geometry constants static constexpr unsigned TRACKS = 77; static constexpr unsigned HEADS = 1; static constexpr unsigned SECTORS = 52; static constexpr unsigned SECTOR_SIZE = 128; img_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; private: uint16_t m_crc; static std::vector interleaved_sectors(unsigned il_factor); void write_mmfm_bit(std::vector &buffer , bool data_bit , bool clock_bit); void write_mmfm_byte(std::vector &buffer , uint8_t data , uint8_t clock = 0); void write_sync(std::vector &buffer); void write_crc(std::vector &buffer , uint16_t crc); void write_gap(std::vector &buffer , unsigned size_00 , unsigned size_ff); void write_sector(std::vector &buffer , uint8_t track_no , uint8_t sect_no , const uint8_t *sect_data); void fill_with_gap4(std::vector &buffer); std::vector get_next_id_n_block(const uint8_t *bitstream , int bitstream_size , int& pos , int& start_pos); bool get_next_sector(const uint8_t *bitstream , int bitstream_size , int& pos , unsigned& track , unsigned& sector , uint8_t *sector_data); }; extern const floppy_format_type FLOPPY_IMG_FORMAT; #endif // MAME_FORMATS_IMG_DSK_H