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FCEUX 2.2.0 Release

27 November 2012

The 2.2.0 release fixes a lot of bugs and adds many new features to prior releases, increasing game compatibility and enhancing usability of both Windows and SDL ports. The Windows version also includes major improvement of debugging tools and introduces the new powerful toolset - TAS Editor v1.0 - created to boost efficiency and ease of Tool-Assisted Speedrunning.


Fixed crash when using machine with no sound card
Fixed long savestate messages containing path
Soft reset and power switch messages
All onscreen messages are now logged to Message Log
Fixed wrong default palette entry
Fixed bug when loading UNIF games
Improved HUD text rendering wrapping
"Display FPS" option


PAL/NTSC noise channel bug fixed
All latest mapper changes from fceu-mm
Also added mappers 176, 116, 156, 252, 28
Fixed mappers 242, 227, 115, 248, 12, 164, 15, 253, 23, 178, 90, 73 and many others
Straighten out bandai m159/m016 handling and add valid null-EEPROM emulation to get those games booting.
Add ability for CNROM games to choose whether they have bus conflicts (fixes Colorful Dragon (Unl) (Sachen), since it flakes out if bus conflicts are emulated)
Fixed bus conflict emulation, no kage no densetsu bug anymore
Fixed newppu bug which prevented metroid from booting, CHR RAM was not getting initialized to anything
Newppu - fix bug in scroll reg logic causing mis-scrolls in p'radikus conflict


Fixed old bug in "Play Movie From Beginning"
Fixed replay engine bug that doubles the last input of the movie
Fixed movie savestates logic, loading post-movie savestates from different timeline is not allowed in read-only
Fixed savestates filenaming bug when working with a movie
Added support for HUD recording in AVI dumping
Rerecords counter display
Config->Movie options->Always suggest Read-Only replay (for Replay dialog). No more accidental rewrites!
Removed "Lag Counter Reset" hotkey, as it was obsolete since FCEUX 2.0.2


Fixed lua drawing alpha blending
Auto-clearing previous frame drawings (same behaviour as other emulators)
New library: taseditor (Windows-only) - contains 24 functions, see taseditor.chm
New Lua functions: New scripts:


Total revamp of fullscreen support
Fixed graphic tearing with vertical sync enabled
Added "Maintain aspect ratio" option to Video config
Added "Hide mouse cursor" and "Use console BG color for empty areas" options to Video config
Added "Switch fullscreen by double-click" option to GUI config
Added "Force Grayscale" option to Palette config
Fixed crashes and bugs caused by 2.1.5 allowing hotkeys without ROM loaded
Lua console now gets proper file path when selecting a file from the recent menu
Fixed context menus to use rightclicks in context menus correctly
Reload hotkey now also supports removing invalid filenames in Recent ROMs
Replay dialog speedup, it doesn't search for movies in fceux root folder anymore
Support multibyte languages for opening files through drag&drop (except for Lua files)
Loading TAS Editor projects (*.fm3) by drag&drop
Fixed bug with Input Config not displaying some key names
Launch tools hotkeys shown in menu; general cleanup of menu/settings, changed some checkboxes to radiobuttons
Added "Clear" button to Message Log

TAS Editor

Completely rewritten tool with brand new architecture and design. Too many changes to enlist, see TAS Editor Manual


General window layout cleanup; different font; ".DEB files" can be switched off; etc
Deleting a breakpoint/bookmark leaves selection in the list
Fixed mysterious out of bounds condition while editing breakpoints
Fixed RAM peek by a rightclick on left pane
Allow Frame Advancing when Debugger is in breakpoint state
Disabled breakpoints now don't impose slowdown
When a breakpoint is hit, it becomes highlighed (selected) in the breakpoints list
Show the number of breakpoints (enabled and total) above the breakpoints list
">" points at current line in disassembly
Improved stack display
Added "CPU cycles" and "Instructions" counters (cumulative and delta)
Added "Cycles counter exceeds N" and "Instructions counter exceeds N" type of breakpoints
Single click on any address copies this address to the "Seek To" field and "Bookmark Add" field
Double-click on any address prompts "Add Breakpoint here" dialog
"ROM offsets" option displays real ROM addresses in the Disassembly window
Fixed conditional breakpoints bug: the error message didn't appear when editing a breakpoint
Fixed and improved Symbolic debug (Names and Comments display)
Added Bookmarks naming
Cleaned up and vastly improved debugging documentation

Trace Logger

Added "Symbolic trace" option
"RTS" instructions now output the subroutine address/name
Added "Use Stack Pointer for code tabbing (nesting visualization)" option
Added "To the left from disassembly text" option for log format customization
Added "Log current Frame number" option
Added "Log emulator messages" option
Added "Log breakpoint hits" option
Fixed bug with trying to log to file without choosing a filename
Tracer now also updates its window when user pauses the game, not just when Debugger snaps

Code/Data Logger

Now can log data access from RAM code
"Save Unused Data" button complements "Save Stripped iNes Rom" feature
Now can log VROM access (CHR banks of the ROM) when NewPPU is enabled

Hex Editor

Display 0x5000-0x5FFF contents
Ctrl+F opens Find dialog

RAM Watch / RAM Search

Updating list when emulator is paused (on Power or when resetting search)
Fixed loading Data Size and Data Type from a .wch, now corrupted .wch won't crash


Added Compare box to the Cheats window
Don't lose cheat compare value when toggle cheat enables through UI
Parse cheat files with non-ASCII characters properly


gtk 2.24 now recommended
added gtk hotkey configuration dialog
updated/added various gui elements for options
new option: SDL.ShowFPS
new option: SDL.Input..EnableOppositeDirectional - allow/disallow simultaneous right+left/up+down input
fixed various build issues
fixed segfault occuring during particular sequences in the cheat menu
fixed potential segfault with gui
fixed segfault issue on debian/ubuntu with proprietary nvidia drivers
now compatible with llvm/clang++
added build option to dynamically link lua
updated default server configuration file to "fceux-server.conf" (from "fceu-server.conf")
updated manpage and documentation