this new advanced arp macro offers more flexibility and reduces code duplication
it allows you to set each step of the macro to either relative or fixed mode
(instead of just one mode for the entire macro)
the UI is still a work in progress and doesn't work well
this change is big and may break things! further fixes incoming
2 Pulse channels:
- 8 level pulse duty cycle, DAC mode(just ignores duty cycle)/pulse wave mode, 4 bit volume.
- Furnace support PCM playback in pulse channels with duty cycle ignore mode.
Sawtooth:
- nothing but 6 bit volume (8 bit accumulator in technically) and 12 bit frequency (periodic).
VRC6 instrument:
- 6 bit Volume macro for finer sawtooth volume handling, also 3 bit Duty cycle macro for pulse channels.
Duty, PCM mode command and Duty macro affects for pulse channel only.