// license:BSD-3-Clause // copyright-holders:Olivier Galibert, R. Belmont /********************************************************************* ap2_dsk.h Apple II disk images *********************************************************************/ #ifndef MAME_FORMATS_AP2_DSK_H #define MAME_FORMATS_AP2_DSK_H #pragma once #include "flopimg.h" #include "flopimg_legacy.h" /*************************************************************************** Constants ***************************************************************************/ #define APPLE2_NIBBLE_SIZE 416 #define APPLE2_SMALL_NIBBLE_SIZE 374 #define APPLE2_STD_TRACK_COUNT 35 #define APPLE2_TRACK_COUNT 40 #define APPLE2_SECTOR_COUNT 16 #define APPLE2_SECTOR_SIZE 256 /**************************************************************************/ LEGACY_FLOPPY_OPTIONS_EXTERN(apple2); // new style code class a2_16sect_format : public floppy_image_format_t { public: a2_16sect_format(bool prodos_order); virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector &variants) const override; virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector &variants, floppy_image *image) const override; virtual bool save(util::random_read_write &io, const std::vector &variants, floppy_image *image) const override; virtual bool supports_save() const override; private: const bool m_prodos_order; static uint8_t gb(const std::vector &buf, int &pos, int &wrap); }; class a2_16sect_dos_format : public a2_16sect_format { public: a2_16sect_dos_format(); virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; }; class a2_16sect_prodos_format : public a2_16sect_format { public: a2_16sect_prodos_format(); virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; }; extern const a2_16sect_dos_format FLOPPY_A216S_DOS_FORMAT; extern const a2_16sect_prodos_format FLOPPY_A216S_PRODOS_FORMAT; class a2_rwts18_format : public floppy_image_format_t { public: a2_rwts18_format(); virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector &variants) const override; virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector &variants, floppy_image *image) const override; virtual bool save(util::random_read_write &io, const std::vector &variants, floppy_image *image) const 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: static const desc_e mac_gcr[]; static uint8_t gb(const std::vector &buf, int &pos, int &wrap); }; extern const a2_rwts18_format FLOPPY_RWTS18_FORMAT; class a2_edd_format : public floppy_image_format_t { public: a2_edd_format(); virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector &variants) const override; virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector &variants, floppy_image *image) const override; virtual bool supports_save() const override; virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; private: static uint8_t pick(const uint8_t *data, int pos); }; extern const a2_edd_format FLOPPY_EDD_FORMAT; class a2_woz_format : public floppy_image_format_t { public: a2_woz_format(); virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector &variants) const override; virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector &variants, floppy_image *image) const override; virtual bool save(util::random_read_write &io, const std::vector &variants, floppy_image *image) const override; virtual bool supports_save() const override; virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; private: static const uint8_t signature[8]; static const uint8_t signature2[8]; static uint32_t r32(const std::vector &data, uint32_t offset); static uint16_t r16(const std::vector &data, uint32_t offset); static uint8_t r8(const std::vector &data, uint32_t offset); static void w32(std::vector &data, int offset, uint32_t value); static void w16(std::vector &data, int offset, uint16_t value); static uint32_t crc32r(const uint8_t *data, uint32_t size); static uint32_t find_tag(const std::vector &data, uint32_t tag); }; extern const a2_woz_format FLOPPY_WOZ_FORMAT; class a2_nib_format : public floppy_image_format_t { public: a2_nib_format(); virtual int identify(util::random_read &io, uint32_t form_factor, const std::vector &variants) const override; virtual bool load(util::random_read &io, uint32_t form_factor, const std::vector &variants, floppy_image *image) const override; virtual bool supports_save() const override; virtual const char *name() const override; virtual const char *description() const override; virtual const char *extensions() const override; private: static constexpr size_t nibbles_per_track = 0x1a00; static constexpr size_t min_sync_bytes = 4; static constexpr auto expected_size_35t = 35 * nibbles_per_track; static constexpr auto expected_size_40t = 40 * nibbles_per_track; static std::vector generate_levels_from_nibbles(const std::vector& nibbles); }; extern const a2_nib_format FLOPPY_NIB_FORMAT; #endif // MAME_FORMATS_AP2_DSK_H