107 lines
4.2 KiB
C
107 lines
4.2 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Definitions for the 86F floppy image format.
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*
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*
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*
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* Authors: Miran Grca, <mgrca8@gmail.com>
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* Fred N. van Kempen, <decwiz@yahoo.com>
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*
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* Copyright 2016-2019 Miran Grca.
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* Copyright 2018,2019 Fred N. van Kempen.
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*/
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#ifndef EMU_FLOPPY_86F_H
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#define EMU_FLOPPY_86F_H
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#define D86FVER 0x020C
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/* Thesere were borrowed from TeleDisk. */
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#define SECTOR_DUPLICATED 0x01
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#define SECTOR_CRC_ERROR 0x02
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#define SECTOR_DELETED_DATA 0x04
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#define SECTOR_DATA_SKIPPED 0x10
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#define SECTOR_NO_DATA 0x20
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#define SECTOR_NO_ID 0x40
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#define length_gap0 80
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#define length_gap1 50
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#define length_sync 12
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#define length_am 4
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#define length_crc 2
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#define IBM
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#define MFM
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#ifdef IBM
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# define pre_gap1 length_gap0 + length_sync + length_am
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#else
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# define pre_gap1 0
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#endif
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#define pre_track pre_gap1 + length_gap1
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#define pre_gap length_sync + length_am + 4 + length_crc
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#define pre_data length_sync + length_am
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#define post_gap length_crc
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extern d86f_handler_t d86f_handler[FDD_NUM];
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extern void d86f_init(void);
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extern void d86f_load(int drive, char *fn);
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extern void d86f_close(int drive);
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extern void d86f_seek(int drive, int track);
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extern int d86f_hole(int drive);
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extern uint64_t d86f_byteperiod(int drive);
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extern void d86f_stop(int drive);
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extern void d86f_poll(int drive);
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extern int d86f_realtrack(int track, int drive);
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extern void d86f_reset(int drive, int side);
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extern void d86f_readsector(int drive, int sector, int track, int side, int density, int sector_size);
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extern void d86f_writesector(int drive, int sector, int track, int side, int density, int sector_size);
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extern void d86f_comparesector(int drive, int sector, int track, int side, int rate, int sector_size);
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extern void d86f_readaddress(int drive, int side, int density);
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extern void d86f_format(int drive, int side, int density, uint8_t fill);
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extern void d86f_prepare_track_layout(int drive, int side);
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extern void d86f_set_version(int drive, uint16_t version);
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extern uint16_t d86f_side_flags(int drive);
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extern uint16_t d86f_track_flags(int drive);
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extern void d86f_initialize_last_sector_id(int drive, int c, int h, int r, int n);
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extern void d86f_initialize_linked_lists(int drive);
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extern void d86f_destroy_linked_lists(int drive, int side);
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extern uint16_t d86f_prepare_sector(int drive, int side, int prev_pos, uint8_t *id_buf, uint8_t *data_buf,
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int data_len, int gap2, int gap3, int flags);
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extern void d86f_setup(int drive);
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extern void d86f_destroy(int drive);
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extern int d86f_export(int drive, char *fn);
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extern void d86f_unregister(int drive);
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extern void d86f_common_handlers(int drive);
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extern void d86f_set_version(int drive, uint16_t version);
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extern int d86f_is_40_track(int drive);
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extern void d86f_reset_index_hole_pos(int drive, int side);
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extern uint16_t d86f_prepare_pretrack(int drive, int side, int iso);
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extern void d86f_set_track_pos(int drive, uint32_t track_pos);
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extern void d86f_set_cur_track(int drive, int track);
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extern void d86f_zero_track(int drive);
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extern void d86f_initialize_last_sector_id(int drive, int c, int h, int r, int n);
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extern void d86f_initialize_linked_lists(int drive);
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extern void d86f_destroy_linked_lists(int drive, int side);
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extern uint16_t *common_encoded_data(int drive, int side);
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extern void common_read_revolution(int drive);
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extern uint32_t common_get_raw_size(int drive, int side);
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extern void null_writeback(int drive);
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extern void null_write_data(int drive, int side, uint16_t pos, uint8_t data);
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extern int null_format_conditions(int drive);
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extern int32_t null_extra_bit_cells(int drive, int side);
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extern void null_set_sector(int drive, int side, uint8_t c, uint8_t h, uint8_t r, uint8_t n);
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extern uint32_t null_index_hole_pos(int drive, int side);
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#endif /*EMU_FLOPPY_86F_H*/
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