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EmuCR:Bochs Bochs v2.6.10 is released. Bochs is a highly portable open source IA-32 (x86) PC emulator written in C++, that runs on most popular platforms. It includes emulation of the Intel x86 CPU, common I/O devices, and a custom BIOS. Currently, Bochs can be compiled to emulate a 386, 486, Pentium/PentiumII/PentiumIII/Pentium4 or x86-64 CPU including optional MMX, SSEx and 3DNow! instructions.

Bochs is capable of running most Operating Systems inside the emulation including Linux, DOS, Windows® 95/98 and Windows® NT/2000/XP or Windows Vista. Bochs was written by Kevin Lawton and is currently maintained by this project.

Bochs can be compiled and used in a variety of modes, some which are still in development. The 'typical' use of bochs is to provide complete x86 PC emulation, including the x86 processor, hardware devices, and memory. This allows you to run OS's and software within the emulator on your workstation, much like you have a machine inside of a machine. For instance, let's say your workstation is a Unix/X11 workstation, but you want to run Win'95 applications. Bochs will allow you to run Win 95 and associated software on your Unix/X11 workstation, displaying a window on your workstation, simulating a monitor on a PC.

Bochs v2.6.10 Changelog:

Brief summary :
- CPU: Bugfixes for CPU emulation correctness (critical bugfixes for PCID, ADCX/ADOX, MOVBE, AVX/AVX-512 and VMX emulation)
- CPU: implemented AVX-512 VBMI2/VNNI/BITALG, VAES, VPCLMULQDQ / GFNI instructions emulation
- VMX: Implement EPT-Based Sub-Page Protection
- CPUID: Added new CPU models Skylake-X, Cannonlake and Icelake-U
- CPUID: Implemented side-channel attack prevention reporting and corresponding MSR registers, enabled for Icelake-U
- Added basic support for the i440BX PCI/AGP chipset.
- Added basic Voodoo Banshee / Voodoo3 emulation support.
- Added basic DDC support for the VGA-compatible adapters.
- Implemented HPET emulation (ported from Qemu).

Detailed change log :

- General
- Disabled legacy "load32bitOShack" feature.
- Improved NSIS win32 installer script.

- CPU / CPUDB
- Significant speedup to simulation of milti-threaded guest (patch by Luigu.B)
- Bugfixes for CPU emulation correctness (critical bugfixes for PCID, ADCX/ADOX, MOVBE, AVX/AVX-512 and VMX emulation)
! x87: implemented FOPCODE and FDP deprecation features
! AVX-512: implemented AVX-512 VBMI2/VNNI/BITALG instructions
! Crypto: Implemented VAES instructions / VPCLMULQDQ / GFNI instruction
! VMX: Implement EPT-Based Sub-Page Protection
! CPUID: Added Skylake-X CPU definition (features AVX-512 support)
! CPUID: Added Cannonlake CPU definition (features more AVX-512 levels, UMIP, SHA, PKU support)
! CPUID: Added Icelake-U CPU definition (features more AVX-512 levels, UMIP, SHA, GFNI, VAES, PKU support)
! CPUID: Implemented SCA (Side-Channel-Attack) Prevention reporting and corresponding MSR registers, enabled for Icelake-U CPU definition

- Bochs Debugger and Instrumentation
- Added support for conditional breakpoints and conditional step/continue to Bochs debugger
- Support 'info tab' command for 64-bit mode as well
- Bochs debugger improvements patch by Doug Gale
- better handling of 64-bit addresses in the debugger, added support for 64 bit symbols,
added more symbol lookups.

- I/O Devices
- PCI
- Added basic support for the i440BX PCI/AGP chipset.
- Timers
- Implemented HPET emulation (ported from Qemu).
- Hard drive / HD image
- Added support for unlocking disk images (locks leftover from previous
Bochs session) with the new command line argument '-unlock'.
- Added ATAPI command "get event status notification".
- Bugfix: undoable/volatile mode images now inherit the base image geometry
if present.
- Voodoo
- Voodoo1 emulation speedup with combined PCI / memory FIFO implementation
and multi-threading support (separate FIFO thread).
- Voodoo2 model now working after some fixes and implementation of the
CMDFIFO (using FIFO thread) and one of the bitBLT functions.
- Added Voodoo Banshee / Voodoo3 emulation support (still under construction,
but basicly usable). The AGP models are available if chipset is i440BX.
- Display (general)
- Added basic DDC support for Bochs VBE, Cirrus and Voodoo Banshee / Voodoo3
adapters (reporting plug&play monitor "Bochs Screen").
- USB
- Now creating separate plugins for each USB device implementation.
- Added sector size option for USB disks (size 1024 and 4096 supported).
- Networking
- bxhub: Added DNS service support for the server "vnet" and connected
clients.
- Sound
- PC speaker now can play digitized sound by driving speaker gate.

- GUI and display libraries
- Added new win32 gui option "traphotkeys" for fullscreen mode.
- wx: Fixes and updates for wxWidgets 3.0 support.
- Removed legacy guis "macos" and "svga" from display library auto-
detection (still available using --with-XXX option).

- LGPL'd VGABIOS updated from CVS (VESA extension 'read EDID' for Bochs VBE
and Cirrus added).

- Misc
- Added sector size option to bximage for creating flat, sparse and growing
mode images with big sectors (size 1024 and 4096 currently supported).

Download: Bochs v2.6.10
Source: Here

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