Improved the BusLogic incoming mailbox code;
The BusLogic callback is now three-phases and outgoing mailbox interrupts are emulated correctly;
Fixed the CD-ROM command READ DISC INFORMATION (0x51), fixes NetBSD crashing 86Box with segmentation fault when using the AHA-154x;
Added the CD-ROM command PAUSE/RESUME ALT (0xC2).
ATAPI CD-ROM word reads no longer incorrectly discard the upper 16 bits, fixes the CD-ROM problems;
Significantly rewrote parts of the AHA-154x and BusLogic emulation, NT 3.1 RTM and MS-DOS drivers now works correctly;
The function in cdrom.c to read data blocks from the disc now correctly advances the position of the sector to read in non-passthrough mode, fixes multiblock reads from directly mounted ISO's;
Both ATAPI and SCSI now always check for Unit Attention and Not Ready on command execution.
SCSI LUN is now selectable for the CD-ROM drives;
Made sure every BusLogic RequestSetup ends in a StartMailbox sooner or later, fixes freezes with the DOS BusLogic drivers;
Commented out execess logging from mem.c;
Applied the mainline PCem commit that fixes the Bahamas64 on some boards.
Fixed several ATAPI CD-ROM bugs;
Added some missing CPL override checks to the MMU translate functions;
Tertiary and quaternary IDE controllers are now automatically disabled if not a single device is attached to them;
Changed sleep time on compile from 10 seconds to 2 seconds.
Fixed IDE and ATAPI 8-bit data reads and writes by rewriting the IDE and CD-ROM PIO data read and write code so that the base code is now 8-bit;
Added some compiler directives that if set, will enable togglable logging and log breakpoints;
Empty IDE channels now always report a status of 0x10 rather than 0x20, and do it on port 3F6h/376h/36Eh/3EEh too, fixes OAKCDROM.SYS infinite loop when hitting an empty IDE channel.
Four CD-ROM drives are now emulated;
ATAPI DMA is now emulated;
Unified CD-ROM pass through to host drive handling;
Applied all (applicable) mainline PCem commits.
The port 92 handler in mem.c now flushes MMU cache when toggling the A20 gate;
Added ability to reload previous disc after ejecting it;
Fixed the START/STOP UNIT command for both SCSI and ATAPI;
Applied mainline PCem commit: All XT models can now use 64kb RAM. Patch from ecksemmess .
The tertiary and quaternary IDE controllers are now fully configurable;
The IRQ of the RTL8029AS network card is now configurable;
CopyQM floppy images are now supported.
ATAPI READ TOC PMA ATIP command now uses direct SCSI passthrough when using IOCtl on Windows;
ATAPI READ TOC PMA ATIP command now supports non-MSF raw mode;
ATAPI READ TOC PMA ATIP command now returns the given maximum length if the actual length of the data is above it;
ATAPI READ TOC PMA ATPI command on Windows IOCtl now returns size of data in the returned buffer's header.
Moved CD-ROM read data buffer declaration and definitions to SCSI source files and headers, but still applying to IDE when needed.
SCSI Read commands now return the correct sectors on callback.
DMA bug fixes.
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.
Added the ATAPI READ CD MSF command;
UNIT ATTENTION is now a condition above the SCSI/ATAPI senses so that non-UNIT ATTENTION senses can still be reported if said condition is present, should they occur;
Applies mainline PCem commit: Added code generation for RMW versions of INC/DEC.
Removed the lone Misc menu and mvoed Status to Settings;
Added a SCSI CD-ROM option to the menu;
Removed the atapi_cdrom_enabled option and replaced any usage of it with !scsi_cdrom_enabled;
Disabling/enabling the CD-ROM drive is now separate from the drive's contents;
The tertiary IDE controller now never gets enabled is the CD-ROM drive is either disabled or SCSI.
Fixed FDI stream parameters passed to the 86F handler, FDI stream images now read correctly again;
The National Semiconductors PC87306 SuperI/O chip now supports enhanced FDC mode.
FDI stream images are now also handled by the 86F handler;
Both floppy drives' motors now spin separately;
Added Plantronics ColorPlus emulation per patch from PCem forum;
Applied all mainline PCem commits;
Fixed several bugs.
Japanese HDI hard disk images are now supproted;
FDC FORMAT command now CRC's the correct data, fixes formatting inserted IMG's;
FDC SEEK command now no longer incorrectly reports invalid status when HDSEL (head select) is 1, fixes booting from inserted floppies of any format on boards other than ASUS P/I-P55TVP4.
Fixed the RTL8029AS again (one of my "fixes" broke it);
RTL8029AS PCI register 4 is now written to;
Added incomplete (and currently commented out) emulation of the AWE64 PCI;
Replaced sector-based floppy emulation with more accurate code.
