Several bug fixes;
Preliminar addition of the SDL 2 renderer (does not yet work correctly in full screen mode);
SCSI devices no longer have configurable LUN's (this matches the configurability of real SCSI devices);
SCSI LUN's are now handed by the device's handler;
Removed all unused strings;
Removed some unused code files;
Significantly rewrote the bus mouse emulation.
Fixes to various hard disk controllers;
Added the Packard Bell PB640;
Fixed the InPort mouse emulation - now it works correctly on Windows NT 3.1;
Removed the status window and the associated variables;
Completely removed the Green B 486 machine;
Fixed the MDSI Genius;
Fixed the single-sided 5.25" floppy drive;
Ported a CPU-related commit from VARCem.
Re-worked the system pathnames (pc.c), renamed cfg_path to usr_path.
Other small things here and there.
Logitech bus mouse re-worked, should be OK now.
IBM.H is gone, video stuff re-organized. Keyboard stuff reorganized.
Machines that have their own video, mouse and/or keyboard now have all this in their machine file.
Fixed and other cleanups here and there.
The FDC now correctly turns off the drive icon's activity light on finishing the READ SECTOR ID command;
Pentium, i686, and some 486 machines now have realistic (per their documentations) minimum and maximum RAM sizes and RAM granularities.
The AT keyboard "write to mouse" command now returns 0xFF (error) when no PS/2 mouse is attached - fixes hangs on AOpen AP53, ASUS P/I-P55T2S, and Tyan Titan Pro/ATX when not using PS/2 mouse;
Fixed the emulation of the SMC FDC37C669 Super I/O chip - serial ports now work correctly on the AOpen AP53 and the ASUS P/I-P55T2S.
Thoroughly clean up the code to vastly reduce the number of compiler warnings and found and fixed several bugs in the process;
Applied all mainline PCem commits;
Added SCSI hard disk emulation;
Commented out all unfinished machines and graphics cards;
Added the AOpen AP53 and ASUS P/I-P55T2 machines as well as another Tyan 440FX machine, all three with AMI WinBIOS (patch from TheCollector1995);
Added the Diamond Stealth 3D 3000 (S3 ViRGE/VX) graphics card (patch from TheCollector1995);
Added the PS/2 XT IDE (AccuLogic) HDD Controller (patch from TheCollector1995);
Added Microsoft/Logitech Bus Mouse emulation (patch from waltje);
Overhauled the makefiles (patch from waltje);
Added the Adaptec AHA-1542CF SCSI controller (patch from waltje);
Added preliminary (but still unfinished) Adaptec AHA-154x SCSI controller BIOS support (patch from waltje);
Added an ISABugger debugging device (patch from waltje);
Added sanity checks to the Direct3D code.
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.
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.
