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by mmastrac
1085 days ago
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I was curious about this... "8253 PIT - Recently rewritten after microcontroller-based research. At least one previously undocumented feature discovered. Accurate enough for PCM audio." ... and it turns out that it's this ... https://github.com/dbalsom/martypc/blob/main/core/src/device... // If the counting element was reloaded between load of LSB and MSB, it is an incomplete load.
// Reload the counting element again when we get the MSB.
// Note: This is completely undocumented behavior
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