Confusing byte format in APU docs
Posted: Sat Apr 22, 2017 11:34 am
I'm reading through the triangle generator docs here and I had a question about the following snippet:
I'm confused by the formats used for address and length calculations—What does the "%" prefix mean, and what's the significance of the period? It's unlike any format I've seen while reading through the PPU docs, so I want to make sure I'm interpreting it correctly.DPCM samples must begin in the memory range $C000-FFFF at an address set by register $4012 (address = %11AAAAAA.AA000000).
The length of the sample in bytes is set by register $4013 (length = %LLLL.LLLL0001).