Bochs x86 PC emulator Files

Changes in 2.6.5 (June 1, 2014):

Brief summary :
- CPU: extra 5-10% emulation speedup with new trace linking optimization
- CPU: implemented new instructions (e.g. AVX-512, SHA, XSAVEC)
- CPUDB: added 2 new CPU models
- Bugfixes for CPU emulation correctness (including some critical ones)
- Gui debugger output window now can be used as a log viewer
- Added built-in slirp (user-mode networking) support (ported from Qemu)
- Added global sound config option and volume control support to the devices
- Added new experimental gui 'vncsrv" using the LibVNCServer library
- Rewrite of the bximage utility in C++ for image creation, conversion and resize

Detailed change log :

- CPU
  - Bugfixes for CPU emulation correctness (critical fixes for XSAVE, VMX, TBM/BMI and RDRAND instructions)
  - Implemented FCS/FDS Deprecation CPU feature
  - Implemented SHA instructions emulation
  - Implemented XSAVEC instruction emulation and XINUSE optimization in the XSAVEOPT instruction
  - Implemented AVX-512 instructions emulation (experimental)
  ! CPUDB: Added Intel(R) Core(TM) i7-4770 CPU (Haswell) configuration to CPUDB
  ! CPUDB: Added AMD A8-5600K APU (Trinity) configuration to CPUDB

  - Replace 'SSE' and 'AVX' .bochsrc option with single 'SIMD' option which controls presence
    of all CPU SIMD extensions from SSE to AVX-512

  - Extra 5-10% emulation speedup with new trace linking optimization. The optimization
    is enabled by default when configuring with --enable-all-optimizations option,
    to disable trace linking optimization configure with --disable-trace-linking.
    The optimization require to compile Bochs with at least -O2 optimization level on gcc.

- Bochs Debugger and Instrumentation
  - Added disam for Bochs internal instruction representation, especially useful for instrumentation
  - Updated definition of instrumentation callbacks, see description in
    instrumentation.txt / Fixed instrumentation examples
  - added capability to use the gui debugger output window as a log viewer

- General
  - Increased max. device log prefix size to 6 and added / modified prefixes
  - plugin version now uses the native DLL handling code for all Windows ports
  - critical bugfixes in save/restore functionality

- Configure and compile
  - configure and compilation fixes for Cygwin and Visual Studio environment
  - configure option --enable-cdrom now only controls the presence of
    platform-specific code for device access
  - building plugin version with MSVC nmake now supported

- Config interface
  - Added global sound control option for the driver and wave input/output
  - Added new bochsrc option to control the speaker output mode
  - Added support to specify the initial time for 'clock' option in ctime(3) string format
  - Added support for the LTDL_LIBRARY_PATH variable with MSVC plugins
  - All SB16 / ES1370 options are now changeable at runtime
  - textconfig: added menu item for saving configuration at runtime
  - Added bochsrc option for the Voodoo Graphics emulation (experimental)

- I/O Devices
  - Hard drive / CD-ROM
    - seek latency implemented for ATA/ATAPI read commands
    - portable ISO image file access now available on all platforms
  - Networking
    - added built-in slirp (user-mode networking) support (ported from Qemu)
    - removed the "slirp backend" support (required external slirp binary)
    - slirp/vnet: all supported TFTP extension options implemented now
  - Sound
    - SB16 / ES1370: added volume control support for wave output
    - SB16: fixed audio distortion when playing stereo wave files
    - ES1370: added 'wavemode' support similar to the SB16
    - soundwin: added capability to specify the ID of the MIDI device to use
  - Serial
    - Serial mouse detection fixes
  - Busmouse
    - Non-functional device rewritten to make it work in DOS and Win95 guests
      (use --enable-busmouse to configure and "mouse: type=bus" at runtime)

- ROM BIOS
  - PS/2 mouse function: allow setting mouse packet size to 4 for wheel support

- GUI and display libraries
  - Added new experimental gui 'vncsrv" using the LibVNCServer library
  - RFB: set maximum resolution to 1280x1024 (same as vncsrv)
  - RFB: don't wait for client connection on startup if timeout is set to 0
  - Added mouse wheel support to the rfb, vncsrv and wx guis
  - wx: added viewer window for the Bochs log output
  - win32: fixes and improvements for the fullscreen mode

- Tools
  - bximage utility rewritten in C++ for image creation, conversion, resize
    and redolog commit. Now vmware4 and vpc images can be created.