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86Box/src/disc_86f.h

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Added my name to all the emulator's files that I touched; Unfinished JEGA emulation based on akm's DOSVAX (AX-emulating fork of DOSBox), not yet hooked into the reset of the emulator.
2017-05-30 03:38:38 +02:00
/*
* 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 86Box distribution.
*
* Implementation of the 86F floppy image format (stores the
* data in the form of FM/MFM-encoded transitions) which also
* forms the core of the emulator's floppy disk emulation.
*
* Version: @(#)disc_86f.h 1.0.0 2017/05/30
*
* Author: Miran Grca, <mgrca8@gmail.com>
* Copyright 2016-2017 Miran Grca.
*/
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
void d86f_init();
Made the emulator even more Unicode then before - configuration files are now Unicode, and floppy images, CD/DVD .ISO images, and hard disk images can now be in paths with non-Latin characters; Fixed a few minor UI bugs; Brought IDE IDENTIFY command behavior back in line with Mainline PCEM, in hopes to reduce bugs.
2017-05-05 22:36:10 +02:00
void d86f_load(int drive, wchar_t *fn);
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
void d86f_close(int drive);
void d86f_seek(int drive, int track);
int d86f_hole(int drive);
Added support for the D86F floppy image format I invented that allows things not possible with IMG images; Applied all mainline PCem commits; Settings dialog now says 86Box instead of PCem; Manifest renamed from PCem to 86Box.
2016-08-31 22:49:56 +02:00
double d86f_byteperiod(int drive);
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
void d86f_stop(int drive);
void d86f_poll();
int d86f_realtrack(int track, int drive);
void d86f_reset(int drive, int side);
void d86f_readsector(int drive, int sector, int track, int side, int density, int sector_size);
void d86f_writesector(int drive, int sector, int track, int side, int density, int sector_size);
Added the FDC SCAN EQUAL, SCAN LOW OR EQUAL, and SCAN HIGH OR EQUAL commands.
2016-10-05 05:37:07 +02:00
void d86f_comparesector(int drive, int sector, int track, int side, int rate, int sector_size);
Fixed the FDC's behavior of the DOR register and the RECALIBRATE and SEEK command to more accurately replicate that of a real FDC, fixes Windows 98 and (hopefully) NetBSD.
2016-12-24 05:37:14 +01:00
void d86f_readaddress(int drive, int side, int density);
void d86f_format(int drive, int side, int density, uint8_t fill);
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
void d86f_prepare_track_layout(int drive, int side);
New turbo floppy poller, should be a bit faster than before.
2017-07-26 00:16:54 +02:00
void d86f_set_version(int drive, uint16_t version);
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
#define length_gap0 80
#define length_gap1 50
#define length_sync 12
#define length_am 4
#define length_crc 2
#define IBM
#define MFM
#ifdef IBM
#define pre_gap1 length_gap0 + length_sync + length_am
#else
#define pre_gap1 0
#endif
#define pre_track pre_gap1 + length_gap1
#define pre_gap length_sync + length_am + 4 + length_crc
#define pre_data length_sync + length_am
#define post_gap length_crc
Applied all mainline PCem commits; Added experimental NVidia Riva TNT2 emulation (patch from MoochMcGee); ASUS P/I-P54TP4XE, ASUS P/I-P55T2P4, and ASUS P/I-P55TVP4 are back; National Semiconductor PC87306 Super I/O chip now correctly reenables devices after a chip power cycle; Several FDC improvements and the behavior is now a bit closer to real hardware (based on actual tests); Added MR Intel Advanced/ATX with Microid Research BIOS with support for 4 floppy drives and up to 4 IDE controllers; Added floppy drives 3 and 4, bringing the maximum to 4; You can now connect hard disks to the tertiary IDE controller; Correct undocumented behavior of the LEA instruction with register is back on 286 and later CPU's; Pentium-rea models with Intel chipsets now have port 92 (with alternate reset and alternate A20 toggle); Overhauled DMA channel read and write routines and fixed cascading; Improved IMG detection of a bad BPB (or complete lack of a BPB); Added preliminary emulation of PS/2 1.44 MB and PC-98 1.25 MB 3-mode drives (both have an inverted DENSEL pin); Removed the incorrect Amstrad mouse patch from TheCollector1995; Fixed ATAPI CD-ROM disk change detection; Windows IOCTL CD-ROM handler now tries to use direct SCSI passthrough for more things, including obtaining CD-ROM capacity; The Diamond Stealth32 (ET4000/W32p) now also works correctly on the two Award SiS 496/497 boxes; The (S)VGA handler now converts 6-bit RAMDAC RGB channels to standard 8-bit RGB using a lookup table generated at emulator start, calculated using the correct intensity conversion method and treating intensity 64 as equivalent to 63; Moved a few options from the Configuration dialog box to the menu; SIO, PIIX, and PIIX3 now have the reset control register on port CF9 as they should; Several bugfixes.
2016-12-23 03:16:24 +01:00
#if 0
Rewrote the disc sector poller again for simplified code and more accuracy; Floppy formats are now accurately timed and also more accurately implemented; Applied all mainline PCem commits.
2016-08-20 03:40:12 +02:00
extern int raw_tsize[2];
extern int gap2_size[2];
extern int gap3_size[2];
extern int gap4_size[2];
Applied all mainline PCem commits; Added experimental NVidia Riva TNT2 emulation (patch from MoochMcGee); ASUS P/I-P54TP4XE, ASUS P/I-P55T2P4, and ASUS P/I-P55TVP4 are back; National Semiconductor PC87306 Super I/O chip now correctly reenables devices after a chip power cycle; Several FDC improvements and the behavior is now a bit closer to real hardware (based on actual tests); Added MR Intel Advanced/ATX with Microid Research BIOS with support for 4 floppy drives and up to 4 IDE controllers; Added floppy drives 3 and 4, bringing the maximum to 4; You can now connect hard disks to the tertiary IDE controller; Correct undocumented behavior of the LEA instruction with register is back on 286 and later CPU's; Pentium-rea models with Intel chipsets now have port 92 (with alternate reset and alternate A20 toggle); Overhauled DMA channel read and write routines and fixed cascading; Improved IMG detection of a bad BPB (or complete lack of a BPB); Added preliminary emulation of PS/2 1.44 MB and PC-98 1.25 MB 3-mode drives (both have an inverted DENSEL pin); Removed the incorrect Amstrad mouse patch from TheCollector1995; Fixed ATAPI CD-ROM disk change detection; Windows IOCTL CD-ROM handler now tries to use direct SCSI passthrough for more things, including obtaining CD-ROM capacity; The Diamond Stealth32 (ET4000/W32p) now also works correctly on the two Award SiS 496/497 boxes; The (S)VGA handler now converts 6-bit RAMDAC RGB channels to standard 8-bit RGB using a lookup table generated at emulator start, calculated using the correct intensity conversion method and treating intensity 64 as equivalent to 63; Moved a few options from the Configuration dialog box to the menu; SIO, PIIX, and PIIX3 now have the reset control register on port CF9 as they should; Several bugfixes.
2016-12-23 03:16:24 +01:00
#endif
New turbo floppy poller, should be a bit faster than before.
2017-07-26 00:16:54 +02:00
#define D86FVER 0x020B
void d86f_initialize_last_sector_id(int drive, int c, int h, int r, int n);
void d86f_zero_bit_field(int drive, int side);
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