Trait spectrusty::chip::EarIn

source · 
pub trait EarIn {
    fn set_ear_in(&mut self, ear_in: bool, delta_fts: u32);
    fn feed_ear_in<I>(
        &mut self,
        fts_deltas: I,
        max_frames_threshold: Option<usize>
    )
    where
        I: Iterator<Item = NonZeroU32>;
    fn purge_ear_in_changes(&mut self, ear_in: bool);
    fn read_ear_in_count(&self) -> u32;

    fn read_ear_mode(&self) -> ReadEarMode { ... }
    fn set_read_ear_mode(&mut self, _mode: ReadEarMode) { ... }
}
Expand description

A trait for feeding the EAR line input.

Required Methods§

Sets EAR IN bit state after the provided interval in ∆ T-states counted from the last recorded change.

Feeds the EAR IN buffer with changes.

The provided iterator should yield time intervals measured in T-state ∆ differences after which the state of the EAR IN bit should be toggled.

max_frames_threshold may be optionally provided as a number of frames to limit the buffered changes. This is useful if the given iterator provides data largely exceeding the duration of a single frame.

Removes all buffered so far EAR IN changes.

Changes are usually consumed only when a call is made to crate::chip::ControlUnit::ensure_next_frame. Provide the current value of EAR IN bit as ear_in.

This may be useful when tape data is already buffered but the user decided to stop the tape playback immediately.

Returns the counter of how many times the EAR input line was read since the beginning of the current frame.

This can be used to help to implement the autoloading of tape data.

Provided Methods§

Returns the current mode.

Changes the current mode.

Implementors§