[−][src]Trait spectrusty::chip::FrameState

pub trait FrameState {
    fn current_frame(&self) -> u64;
    fn set_frame_counter(&mut self, fc: u64);
    fn frame_tstate(&self) -> (u64, i32);
    fn current_tstate(&self) -> i32;
    fn set_frame_tstate(&mut self, ts: i32);
    fn is_frame_over(&self) -> bool;
}

The trait for reading and modifying the state of frame and cycle counters.

Required methods

`fn current_frame(&self) -> u64`

Returns the value of the current execution frame counter. The FrameState implementation should count passing frames infinitely wrapping at 2^64.

`fn set_frame_counter(&mut self, fc: u64)`

Sets the frame counter to the specified value.

`fn frame_tstate(&self) -> (u64, i32)`

Returns a normalized frame counter and a T-state counter as a tuple.

T-states are counted from 0 at the start of each frame. This method never returns the T-state counter value below 0 or past the frame counter limit.

`fn current_tstate(&self) -> i32`

Returns the current value of the T-state counter.

Unlike in FrameState::frame_tstate, values return by this method can sometimes be negative as well as exceeding the maximum number of T-states per frame.

`fn set_frame_tstate(&mut self, ts: i32)`

Sets the T-state counter to the specified value modulo <Self as Video>::FRAME_TSTATES_COUNT.

`fn is_frame_over(&self) -> bool`

Returns true if the value of the current T-state counter has reached a certain arbitrary limit which is very close to the maximum number of T-states per frame.

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