dc46480aa4
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.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* Copyright holders: Sarah Walker, Tenshi
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see COPYING for more details
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*/
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void d86f_init();
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void d86f_load(int drive, char *fn);
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void d86f_close(int drive);
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void d86f_seek(int drive, int track);
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int d86f_hole(int drive);
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double d86f_byteperiod(int drive);
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void d86f_stop(int drive);
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void d86f_poll();
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int d86f_realtrack(int track, int drive);
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void d86f_reset(int drive, int side);
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void d86f_readsector(int drive, int sector, int track, int side, int density, int sector_size);
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void d86f_writesector(int drive, int sector, int track, int side, int density, int sector_size);
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void d86f_comparesector(int drive, int sector, int track, int side, int rate, int sector_size);
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void d86f_readaddress(int drive, int sector, int side, int density);
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void d86f_format(int drive, int sector, int side, int density, uint8_t fill);
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void d86f_prepare_track_layout(int drive, int side);
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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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#if 0
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extern int raw_tsize[2];
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extern int gap2_size[2];
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extern int gap3_size[2];
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extern int gap4_size[2];
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#endif
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