Author Topic: FIFO Overflow Behavior  (Read 522 times)

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Offline avicr

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FIFO Overflow Behavior
« on: May 12, 2021, 12:09 AM »
What happens when the FIFO buffer is full?  Do bytes sent to the full FIFO get dropped, or do new bytes replace old bytes in the buffer?

I'm writing a PC application that streams APU register data over the FIFO to the NES to play music.  It's working fairly well except that the NES occasionally gets malformed packets due to a full buffer.