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Floppy fixes to handle TD0 and IMD images with some kinds of copy protection, fixes eg. F-19 Stealth Fighter from 1988.

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This commit is contained in:
OBattler
2019-12-05 21:36:28 +01:00
parent b6adaff6fd
commit b9a35eb418
20 changed files with 471 additions and 648 deletions
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73
src/floppy/fdd.h
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@@ -1,40 +1,22 @@
/*
* VARCem Virtual ARchaeological Computer EMulator.
* An emulator of (mostly) x86-based PC systems and devices,
* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
* spanning the era between 1981 and 1995.
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the VARCem Project.
* This file is part of the 86Box distribution.
*
* Definitions for the floppy drive emulation.
*
* Version: @(#)fdd.h 1.0.6 2019/02/11
* Version: @(#)fdd.h 1.0.7 2019/12/05
*
* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
* Authors: Sarah Walker, <tommowalker@tommowalker.co.uk>
* Miran Grca, <mgrca8@gmail.com>
* Sarah Walker, <tommowalker@tommowalker.co.uk>
* Fred N. van Kempen, <decwiz@yahoo.com>
*
* Copyright 2018 Fred N. van Kempen.
* Copyright 2016-2018 Miran Grca.
* Copyright 2008-2018 Sarah Walker.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the:
*
* Free Software Foundation, Inc.
* 59 Temple Place - Suite 330
* Boston, MA 02111-1307
* USA.
* Copyright 2016-2018 Miran Grca.
* Copyright 2018 Fred N. van Kempen.
*/
#ifndef EMU_FDD_H
# define EMU_FDD_H
@@ -50,7 +32,7 @@ extern "C" {
extern int fdd_swap;
extern void fdd_set_motor_enable(int drive, int motor_enable);
extern void fdd_set_motor_enable(int drive, int motor_enable);
extern void fdd_do_seek(int drive, int track);
extern void fdd_forced_seek(int drive, int track_diff);
extern void fdd_seek(int drive, int track_diff);
@@ -174,39 +156,6 @@ typedef struct {
} d86f_handler_t;
extern const int gap3_sizes[5][8][48];
extern d86f_handler_t d86f_handler[FDD_NUM];
extern void d86f_setup(int drive);
extern void d86f_destroy(int drive);
extern int d86f_export(int drive, wchar_t *fn);
extern void d86f_unregister(int drive);
extern void d86f_common_handlers(int drive);
extern void d86f_set_version(int drive, uint16_t version);
extern int d86f_is_40_track(int drive);
extern void d86f_reset_index_hole_pos(int drive, int side);
extern uint16_t d86f_prepare_pretrack(int drive, int side, int iso);
extern uint16_t d86f_prepare_sector(int drive, int side, int prev_pos,
uint8_t *id_buf, uint8_t *data_buf,
int data_len, int gap2, int gap3,
int deleted, int bad_crc);
extern void d86f_set_track_pos(int drive, uint32_t track_pos);
extern void d86f_set_cur_track(int drive, int track);
extern void d86f_zero_track(int drive);
extern void d86f_initialize_last_sector_id(int drive, int c, int h,
int r, int n);
extern void d86f_initialize_linked_lists(int drive);
extern void d86f_destroy_linked_lists(int drive, int side);
extern uint16_t *common_encoded_data(int drive, int side);
extern void common_read_revolution(int drive);
extern uint32_t common_get_raw_size(int drive, int side);
extern void null_writeback(int drive);
extern void null_write_data(int drive, int side, uint16_t pos,
uint8_t data);
extern int null_format_conditions(int drive);
extern int32_t null_extra_bit_cells(int drive, int side);
extern void null_set_sector(int drive, int side, uint8_t c, uint8_t h,
uint8_t r, uint8_t n);
extern uint32_t null_index_hole_pos(int drive, int side);
extern const uint8_t dmf_r[21];
extern const uint8_t xdf_physical_sectors[2][2];