7days7engines Day 4: Octode 2k15 test1 by irrlicht project

Hadn't written a pin pulse engine in ages, so it was time to change that :) Octode 2k15 is a rewrite of Shiru's 8-channel Octode engine, which fixes the detune issues of the latter by using 16-bit frequency counting. The sound is somewhere half-way between the original Octode and introspec's "XL" mod.

download: https://github.com/utz82/ZX-Spectrum-1-Bit-Routines/blob/master/quattropic.zip?raw=true (includes XM converter)
source: https://github.com/utz82/ZX-Spectrum-1-Bit-Routines/tree/master/octode2k15
7d7e release thread: http://randomflux.info/1bit/viewtopic.php?id=39