add directory bochs

bochs/Bochs/bochs-2.6.1/README-bochs-2.6.1

@@ -0,0 +1,39 @@
+Changes in 2.6.1 (April 7, 2013):
+
+- CPU / CPUDB
+  - Bochs is fully aligned with rev45 of the of Intel(R) Architecture Manual.
+    - Implemented Supervisor Mode Access Protection (SMAP) support
+    - Implemented VMX APIC Registers Virtualization and VMX Virtual Interrupt Delivery
+    - Implemented VMCS Shadowing and #VE exception secondary VMEXIT controls emulation
+    - Implemented RDRAND and RDSEED instructions
+  ! CPUDB: Added AMD FX-4100 (Zambezi) configuration to CPUDB
+  - Bugfixes for CPU emulation correctness (critical fixes for SVM and AVX2 emulation)
+
+- Bochs Debugger and Instrumentation
+  - Use Enhanced GUI Debugger instead of old-style wx debugger with wx gui.
+    The old-style wx debugger support was deprecated and removed from the source code.
+
+- I/O Devices
+  - Implemented 3dfx Voodoo Graphics card emulation based on DOSBox patch, to enable
+    configure with --enable-voodoo option.
+  - Hard drive / HD image
+    - Added full save restore support for most of the disk image formats
+    - undoable / volatile mode: added support of other types of r/o base images
+    - DLL HD support rewritten and enabled for WIN32 host
+  - PCI chipset
+    - Implemented i430FX chipset emulation
+    - USB UHCI always enabled in the i440FX case
+
+- Config interface
+  - Configure option --enable-misaligned-sse moved to runtime option in .bochsrc. The old
+    option is deprecated and should not be used anymore.
+  - moved 'user_shortcut' bochsrc option to the 'keyboard' option
+  - save log options per device to bochsrc
+  - win32: implemented scrollable dialog items for large parameter lists
+
+- GUI and display libraries
+  - Graphics snapshot feature rewritten to support all kinds of graphics modes
+  - wx: starting a second simulation without closing Bochs now almost possible
+
+- Tools
+  - bxcommit: added support for converting flat to growing mode images