Low-pass equalization parameters (see notes.txt)

DMA state machine

Processor flags */

Mono_Buffer uses a single buffer and outputs mono samples.

Multi_Buffer is an interface to one or more Blip_Buffers mapped to one or more channels consisting of left, center, and right buffers.

Nes_Dmc

Nes_Noise

Use to make samples non-linear in Blip_Buffer used for triangle, noise, and DMC only

Nes_Square

Nes_Triangle

Save state support - get/set PPU internal registers

Simple SDL sound wrapper that has a synchronous interface

Sprite buffer */

Main save state structure

Stereo_Buffer uses three buffers (one for center) and outputs stereo sample pairs.