It works, though! There are some bugs that manifest in certain games, but for the most part, they are very playable! Most common mappers are supported. The sound emulation is also pretty decent, but not perfect. It uses SDL 1.2 for audio.
It requires a relatively modern computer. To give you an idea of the speed, it uses 60-70% of the CPU time (of a single core) to run in 2x scaling mode on my i7-8700K! Closer to 50% in 1x scaling mode. Yes, that's horrible.
I also tried it on my LattePanda Alpha 864 SBC which is an m3-7Y30 CPU running at 1.6 GHz, where it pegs the CPU time at right around 100% in 2x scaling. Then on a laptop with an i5-3230M @ 2.6 GHz, it uses around 90% CPU at 2x scaling. I haven't tried it on any other systems yet.
Again, these numbers are all just load on a single core.
If anybody feels like taking a crack at cleaning it up and optimizing it a bit, feel free to have a go!
If your system has stuttering or popping in the audio, you may want to try increasing the buffer size. Find the "buffersize = 6400" in audio.bas, and increase it to maybe 8000 or 10000. This will increase the latency, but make the audio sound cleaner.
DOWNLOAD: http://s000.tinyupload.com/index.php?fi ... 6728243033
Just run it at the command prompt, giving it a ROM file on the command line. Or you can drag and drop a NES ROM onto the executable in explorer.
Default controller keys:
B = Z
A = X
Select = Right shift
Start = Enter
Arrow keys for the D-pad
Press F10 to reconfigure a custom key map.
Press F11 to toggle between 1x and 2x scaling.
F1 to F4 saves state to one of the four quick save slots.
F5 to F8 loads them back up.
