2017-05-30 03:38:38 +02:00
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/*
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2019-12-05 21:36:28 +01:00
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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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2017-05-30 03:38:38 +02:00
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*
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2019-12-05 21:36:28 +01:00
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* This file is part of the 86Box distribution.
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2017-05-30 03:38:38 +02:00
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*
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* Implementation of the NEC uPD-765 and compatible floppy disk
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* controller.
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*
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2020-03-25 00:46:02 +02:00
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*
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2017-05-30 03:38:38 +02:00
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*
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2019-12-05 21:36:28 +01:00
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* Authors: Sarah Walker, <tommowalker@tommowalker.co.uk>
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* Miran Grca, <mgrca8@gmail.com>
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2019-10-09 16:42:25 +02:00
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* Fred N. van Kempen, <decwiz@yahoo.com>
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2018-03-19 01:02:04 +01:00
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*
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2020-02-29 19:12:23 +01:00
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* Copyright 2008-2020 Sarah Walker.
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* Copyright 2016-2020 Miran Grca.
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* Copyright 2018-2020 Fred N. van Kempen.
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2017-05-30 03:38:38 +02:00
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*/
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2017-08-24 01:14:39 -04:00
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#ifndef EMU_FDC_H
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# define EMU_FDC_H
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2017-05-30 03:38:38 +02:00
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2020-06-16 16:25:23 +02:00
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extern int fdc_type;
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2018-01-17 18:43:36 +01:00
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#define FDC_FLAG_PCJR 0x01 /* PCjr */
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#define FDC_FLAG_DISKCHG_ACTLOW 0x02 /* Amstrad, PS/1, PS/2 ISA */
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#define FDC_FLAG_AT 0x04 /* AT+, PS/x */
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#define FDC_FLAG_PS1 0x08 /* PS/1, PS/2 ISA */
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#define FDC_FLAG_SUPERIO 0x10 /* Super I/O chips */
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#define FDC_FLAG_START_RWC_1 0x20 /* W83877F, W83977F */
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#define FDC_FLAG_MORE_TRACKS 0x40 /* W83877F, W83977F, PC87306, PC87309 */
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#define FDC_FLAG_NSC 0x80 /* PC87306, PC87309 */
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2018-09-22 01:38:38 +02:00
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#define FDC_FLAG_TOSHIBA 0x100 /* T1000, T1200 */
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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#define FDC_FLAG_AMSTRAD 0x200 /* Non-AT Amstrad machines */
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2020-06-16 16:25:23 +02:00
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#define FDC_FLAG_NSDP 0x400 /* DP8473N, DP8473V */
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2018-01-17 18:43:36 +01:00
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2018-03-19 01:02:04 +01:00
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typedef struct {
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2020-06-23 18:48:16 +02:00
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uint8_t dor, stat, command, processed_cmd, dat, st0, swap, dtl;
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PIC rewrite, proper SMRAM API, complete SiS 471 rewrite and addition of 40x, 460, and 461, changes to mem.c/h, disabled Voodoo memory dumping on exit, bumped SDL Hardware scale quality to 2, bumped IDE/ATAPI drives to ATA-6, finally bumped emulator version to 3.0, redid the bus type ID's to allow for planned ATAPI hard disks, made SST flash set its high mappings to the correct address if the CPU is 16-bit, and added the SiS 401 AMI 486 Clone, AOpen Vi15G, and the Soyo 4SA2 (486 with SiS 496/497 that can boot from CD-ROM), assorted 286+ protected mode fixes (for slightly more accuracy), and fixes to 808x emulation (MS Word 1.0 and 1.10 for DOS now work correctly from floppy).
2020-10-14 23:15:01 +02:00
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uint8_t swwp, disable_write, st5, st6, error;
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2020-06-20 22:34:51 +02:00
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uint8_t params[8], res[11];
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uint8_t specify[2];
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2018-01-17 18:43:36 +01:00
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uint8_t config, pretrk;
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uint8_t fifobuf[16];
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uint16_t base_address;
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int head, sector, drive, lastdrive;
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2020-06-20 22:34:51 +02:00
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int pcn[4], eot[4];
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2018-01-17 18:43:36 +01:00
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int rw_track, pos;
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int pnum, ptot;
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int rate, reset_stat;
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int lock, perp;
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int format_state, format_n;
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2018-04-25 23:51:13 +02:00
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int step, seek_dir;
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2020-06-23 18:48:16 +02:00
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int tc, noprec;
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2018-01-17 18:43:36 +01:00
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int data_ready, inread;
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int bitcell_period, enh_mode;
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int rwc[4], drvrate[4];
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int boot_drive, dma;
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int densel_polarity, densel_force;
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int fifo, tfifo;
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int fifobufpos, drv2en;
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2020-06-23 18:48:16 +02:00
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int gap;
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2018-01-17 18:43:36 +01:00
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int enable_3f1, format_sectors;
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int max_track, mfm;
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int deleted, wrong_am;
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int sc, satisfying_sectors;
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int fintr, rw_drive;
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int flags, interrupt;
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int irq; /* Should be 6 by default. */
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int dma_ch; /* Should be 2 by default. */
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int bit_rate; /* Should be 250 at start. */
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int paramstogo;
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2020-06-20 22:34:51 +02:00
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sector_id_t read_track_sector, format_sector_id;
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2018-01-17 18:43:36 +01:00
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2020-06-20 22:34:51 +02:00
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uint64_t watchdog_count;
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pc_timer_t timer, watchdog_timer;
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2018-01-17 18:43:36 +01:00
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} fdc_t;
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2018-03-19 01:02:04 +01:00
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2018-01-17 18:43:36 +01:00
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extern void fdc_remove(fdc_t *fdc);
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extern void fdc_poll(fdc_t *fdc);
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extern void fdc_abort(fdc_t *fdc);
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extern void fdc_set_dskchg_activelow(fdc_t *fdc);
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extern void fdc_3f1_enable(fdc_t *fdc, int enable);
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extern int fdc_get_bit_rate(fdc_t *fdc);
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extern int fdc_get_bitcell_period(fdc_t *fdc);
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2016-06-26 00:34:39 +02:00
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/* A few functions to communicate between Super I/O chips and the FDC. */
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2018-01-17 18:43:36 +01:00
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extern void fdc_update_enh_mode(fdc_t *fdc, int enh_mode);
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extern int fdc_get_rwc(fdc_t *fdc, int drive);
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extern void fdc_update_rwc(fdc_t *fdc, int drive, int rwc);
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extern int fdc_get_boot_drive(fdc_t *fdc);
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extern void fdc_update_boot_drive(fdc_t *fdc, int boot_drive);
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extern void fdc_update_densel_polarity(fdc_t *fdc, int densel_polarity);
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extern uint8_t fdc_get_densel_polarity(fdc_t *fdc);
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extern void fdc_update_densel_force(fdc_t *fdc, int densel_force);
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extern void fdc_update_drvrate(fdc_t *fdc, int drive, int drvrate);
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extern void fdc_update_drv2en(fdc_t *fdc, int drv2en);
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extern void fdc_noidam(fdc_t *fdc);
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extern void fdc_nosector(fdc_t *fdc);
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extern void fdc_nodataam(fdc_t *fdc);
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extern void fdc_cannotformat(fdc_t *fdc);
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extern void fdc_wrongcylinder(fdc_t *fdc);
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extern void fdc_badcylinder(fdc_t *fdc);
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extern void fdc_writeprotect(fdc_t *fdc);
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extern void fdc_datacrcerror(fdc_t *fdc);
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extern void fdc_headercrcerror(fdc_t *fdc);
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extern void fdc_nosector(fdc_t *fdc);
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extern int real_drive(fdc_t *fdc, int drive);
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extern sector_id_t fdc_get_read_track_sector(fdc_t *fdc);
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extern int fdc_get_compare_condition(fdc_t *fdc);
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extern int fdc_is_deleted(fdc_t *fdc);
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extern int fdc_is_sk(fdc_t *fdc);
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extern void fdc_set_wrong_am(fdc_t *fdc);
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extern int fdc_get_drive(fdc_t *fdc);
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extern int fdc_get_perp(fdc_t *fdc);
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extern int fdc_get_format_n(fdc_t *fdc);
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extern int fdc_is_mfm(fdc_t *fdc);
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extern double fdc_get_hut(fdc_t *fdc);
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extern double fdc_get_hlt(fdc_t *fdc);
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extern void fdc_request_next_sector_id(fdc_t *fdc);
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extern void fdc_stop_id_request(fdc_t *fdc);
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extern int fdc_get_gap(fdc_t *fdc);
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extern int fdc_get_gap2(fdc_t *fdc, int drive);
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extern int fdc_get_dtl(fdc_t *fdc);
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extern int fdc_get_format_sectors(fdc_t *fdc);
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extern uint8_t fdc_get_swwp(fdc_t *fdc);
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extern void fdc_set_swwp(fdc_t *fdc, uint8_t swwp);
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extern uint8_t fdc_get_diswr(fdc_t *fdc);
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extern void fdc_set_diswr(fdc_t *fdc, uint8_t diswr);
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extern uint8_t fdc_get_swap(fdc_t *fdc);
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extern void fdc_set_swap(fdc_t *fdc, uint8_t swap);
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extern void fdc_finishcompare(fdc_t *fdc, int satisfying);
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extern void fdc_finishread(fdc_t *fdc);
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extern void fdc_sector_finishcompare(fdc_t *fdc, int satisfying);
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extern void fdc_sector_finishread(fdc_t *fdc);
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extern void fdc_track_finishread(fdc_t *fdc, int condition);
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extern int fdc_is_verify(fdc_t *fdc);
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extern void fdc_overrun(fdc_t *fdc);
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extern void fdc_set_base(fdc_t *fdc, int base);
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2020-02-29 19:12:23 +01:00
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extern void fdc_set_irq(fdc_t *fdc, int irq);
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2020-10-22 17:45:31 -03:00
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extern void fdc_set_dma_ch(fdc_t *fdc, int dma_ch);
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2018-01-17 18:43:36 +01:00
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extern int fdc_getdata(fdc_t *fdc, int last);
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extern int fdc_data(fdc_t *fdc, uint8_t data);
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2018-03-19 01:02:04 +01:00
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extern void fdc_sectorid(fdc_t *fdc, uint8_t track, uint8_t side,
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uint8_t sector, uint8_t size, uint8_t crc1,
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uint8_t crc2);
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2018-01-17 18:43:36 +01:00
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2018-03-02 19:33:02 +01:00
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extern uint8_t fdc_read(uint16_t addr, void *priv);
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2018-01-17 18:43:36 +01:00
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extern void fdc_reset(void *priv);
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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extern uint8_t fdc_get_current_drive(void);
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2018-01-17 18:43:36 +01:00
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#ifdef EMU_DEVICE_H
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2018-03-19 01:02:04 +01:00
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extern const device_t fdc_xt_device;
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2018-09-22 01:38:38 +02:00
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extern const device_t fdc_xt_t1x00_device;
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Added the IBM 5161 ISA expansion for PC and XT;
Cleaned up the parallel port emulation, added IRQ support, and made enabling/disabling per port;
Added the Award 430NX and the Intel Classic/PCI (Alfredo, 420TX);
Finished the 586MC1;
Added 8087 emulation;
Moved Cyrix 6x86'es to the Dev branch;
Sanitized/cleaned up memregs.c/h and intel.c/h;
Split the chipsets from machines and sanitized Port 92 emulation;
Added support for the 15bpp mode to the Compaq ATI 28800;
Moved the MR 386DX and 486 machines to the Dev branch;
Ported the new dynamic recompiler from PCem, but it remains in Dev branch until after v2.00;
Ported the new timer code from PCem;
Cleaned up the CPU table of unused stuff and better optimized its structure;
Ported the Open-XT and Open-AT from VARCem, the Open-AT is in the Dev branch;
Ported the XT MFM controller rewrite and adding of more controllers (incl. two RLL ones), from VARCem;
Added the AHA-1540A and the BusTek BT-542B;
Moved the Sumo SCSI-AT to the Dev branch;
Minor IDE, FDC, and floppy drive code clean-ups;
Made NCR 5380/53C400-based cards' BIOS address configurable;
Got rid of the legacy romset variable;
Unified (video) buffer and buffer32 into one and make the unified buffer 32-bit;
Added the Amstead PPC512 per PCem patch by John Elliott;
Switched memory mapping granularity from 16k to 4k (less than 1k not possible due to internal pages);
Rewrote the CL-GD 54xx blitter, fixes Win-OS/2 on the 54x6 among other thing;
Added the Image Manager 1024 and Professional Graphics Controller per PCem patch by John Elliott and work done on VARCem;
Added Headland HT-216, GC-205 and Video 7 VGA 1024i emulation based on PCem commit;
Implemented the fuction keys for the Toshiba T1000/T1200/T3100 enhancement;
Amstrad MegaPC does now works correctly with non-internal graphics card;
The SLiRP code no longer casts a packed struct type to a non-packed struct type;
The Xi8088 and PB410a no longer hang on 86Box when PS/2 mouse is not present;
The S3 Virge on BeOS is no longer broken (was broken by build #1591);
OS/2 2.0 build 6.167 now sees key presses again;
Xi8088 now work on CGA again;
86F images converted from either the old or new variants of the HxC MFM format now work correctly;
Hardware interrupts with a vector of 0xFF are now handled correctly;
OPTi 495SX boards no longer incorrectly have 64 MB maximum RAM when 32 MB is correct;
Fixed VNC keyboard input bugs;
Fixed AT RTC periodic interrupt - Chicago 58s / 73f / 73g / 81 MIDI play no longer hangs with the build's own VTD driver;
Fixed mouse polling with internal mice - Amstrad and Olivetti mice now work correctly;
Triones ATAPI DMA driver now correctly reads a file at the end of a CD image with a sectors number not divisible by 4;
Compaq Portable now works with all graphics cards;
Fixed various MDSI Genius bugs;
Added segment limit checks and improved page fault checks for several CPU instructions - Memphis 15xx WINSETUP and Chicago 58s WINDISK.CPL no longer issue a GPF, and some S3 drivers that used to have glitches, now work correctly;
Further improved the 808x emulation, also fixes the noticably choppy sound when using 808x CPU's, also fixes #355;
OS/2 installer no logner locks up on splash screen on PS/2 Model 70 and 80, fixes #400.
Fixed several Amstead bugs, GEM no longer crashes on the Amstrad 1640, fixes #391.
Ported John Elliott's Amstrad fixes and improvement from PCem, and fixed the default language so it's correctly Engliish, fixes #278, fixes #389.
Fixed a minor IDE timing bug, fixes #388.
Fixed Toshiba T1000 RAM issues, fixes #379.
Fixed EGA/(S)VGA overscan border handling, fixes #378;
Got rid of the now long useless IDE channel 2 auto-removal, fixes #370;
Fixed the BIOS files used by the AMSTRAD PC1512, fixes #366;
Ported the Unicode CD image file name fix from VARCem, fixes #365;
Fixed high density floppy disks on the Xi8088, fixes #359;
Fixed some bugs in the Hercules emulation, fixes #346, fixes #358;
Fixed the SCSI hard disk mode sense pages, fixes #356;
Removed the AMI Unknown 386SX because of impossibility to identify the chipset, closes #349;
Fixed bugs in the serial mouse emulation, fixes #344;
Compiled 86Box binaries now include all the required .DLL's, fixes #341;
Made some combo boxes in the Settings dialog slightly wider, fixes #276.
2019-09-20 14:02:30 +02:00
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extern const device_t fdc_xt_amstrad_device;
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2018-03-19 01:02:04 +01:00
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extern const device_t fdc_pcjr_device;
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extern const device_t fdc_at_device;
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extern const device_t fdc_at_actlow_device;
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extern const device_t fdc_at_ps1_device;
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extern const device_t fdc_at_smc_device;
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extern const device_t fdc_at_winbond_device;
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extern const device_t fdc_at_nsc_device;
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2020-06-16 16:25:23 +02:00
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extern const device_t fdc_dp8473_device;
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2018-01-17 18:43:36 +01:00
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#endif
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2016-09-03 18:07:46 +02:00
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2017-08-24 01:14:39 -04:00
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#endif /*EMU_FDC_H*/
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