A beeper engine in 86 bytes :o This is the last installment in the 7days7engines project. Not a really serious one, but I had to fill the week somehow ;)

download: https://github.com/utz82/ZX-Spectrum-1-Bit-Routines/blob/master/nanobeep.zip?raw=true (includes XM convert)
source: https://github.com/utz82/ZX-Spectrum-1-Bit-Routines/tree/master/nanobeep
7d7e release thread: http://randomflux.info/1bit/viewtopic.php?id=39

7days7engines Day 7: nanobeep test1

1-bit fanatic, sound driver coder, calculator abuser, binary modulation researcher

7days7engines Day 7: nanobeep test1

irrlicht project