Trait ApuBus 

pub trait ApuBus {
    // Required method
    fn dmc_read(&mut self, addr: u16) -> u8;
}

Bus surface seen by the APU. A small subset of the full CPU bus for the DMC’s sample-fetch DMA.

Required Methods

fn dmc_read(&mut self, addr: u16) -> u8

Read one byte for a DMC sample fetch. The bus is responsible for halting the CPU and accounting for the 3- or 4-cycle DMA stall before this is called.

Implementors