Question: Why is the 10bit oscillator function relocated from data?

[furroy]

I don't understand why the 10bit oscillator was stored as data and relocated to $340 at runtime ? I rewrote it to live anywhere in memory and seems to work fine. Effectively this just obfuscated what was going on. I was pleasantly surprised to find the irq player hidden in there as well, as this is exactly what i needed for my game.