Gopher2600 v0.56.0 is released. Gopher2600 is an emulator for the Atari 2600. Whilst the performance is not as efficient as some other emulators it is none-the-less suitable for playing games, on a reasonably modern computer, at the required 60fps. (The development machine for Gopher2600 has been an i3-3225, dating from around 2012.)

Gopher2600 changelog:
Display
more even scaling of screen. particularly noticeable in "Pixel Perfect" mode
better handling of flicker kernels when monitor is faster than emulated TV
synchronise with monitor option
not useful unless monitor runs close to speed of emulated TV
Debugger
improved cursor dragging in TV window
improved magnification window
shows cursor information and can be used to position emulation just like the main TV window
peripherals window now includes a basic peripheral visualisation
only supports stick and gamepad currently
Devcard
added Atari 7800 devcard support
this cartridge could be used to develop 2600 games with banks larger than 4k
some 2600 prototypes exist that expect the 7800 architecture
Tracker
improved tracking of audio register changes
experimental saving of tracker history to JSON file
Disassembly
auto-labels no longer clobber DASM symbols
corrected disassembly of moviecart core program
the way the moviecart implementation shared the binary information with the disassembly pacakge was incorrect
Coprocessor Developer Tools
global variables can now be added to a hotlist
useful if the there are a lot of global variables and you only want to focus on some
hotlist automatically saved and loaded on following sessions
fixed lobal variable strobing
Bugfixes
CDFJ+ audio register was not serviced properly
no current games affected
breakpoints with multiple conditions are only skipped if all conditions are unchanged
this fixes a bug which caused PC breakpoints on specific banks to be ignored if the bank had not changed
the bug would have been seen when setting a breakpoint through the disasm window on a multibank cart
timeline window no longer causes crash when emulation has been rewound past the limits of the timeline window
Apple Silicon Support
thanks to @dionoid for adding a build action for MacOS on Apple Silicon

Download: Gopher2600 v0.56.0
Source:Here