scala-nes

NES emulator written in Scala.

Screenshots

Running

Make sure to have Java and SBT in your PATH environment variable.

$ sbt assembly
$ cp target/scala-2.12/scala-nes.jar .
$ java -XX:AutoBoxCacheMax=0xffff -jar scala-nes.jar src/test/resources/nestest.nes

To print out frames per second:

$ java -XX:AutoBoxCacheMax=0xffff -jar scala-nes.jar src/test/resources/nestest.nes --stats

To enable sound (experimental):

$ java -XX:AutoBoxCacheMax=0xffff -jar scala-nes.jar src/test/resources/nestest.nes --sound

Controls

Keyboard controls are:

Nintendo	Emulator
Up, Down, Left, Right	Arrow Keys
Start	S
Select	A
A	Z
B	X

References

• OneLoneCoder's "NES Emulator From Scratch" YouTube Tutorial: the main source of motivation
• OneLoneCoder/olcNES emulator: video tutorial code
• NesDev: various NES resources
• nestest: famous test ROM