Struct Stall 

pub struct Stall {
    pub cycles: u32,
    pub cause: Interlock,
}

A stall request: how long, and what caused it.

ADR 0007 describes an interlock as (cycles, resume_stage). The resume half is deliberately absent until it can be load-bearing. Today Pipeline::advance always runs the full cascade when not stalled, so a stored resume would be read by nothing — and a field that looks like it carries information while carrying none is the exact hazard docs/engineering-lessons.md §3.2 is about. Bus::poll_irq_at_phase was removed for the same reason rather than left in place looking wired.

It lands with T-11-002, when stages can stall independently and a partial resume becomes meaningful.

Fields

cycles: u32

PCycles remaining.

cause: Interlock

Which documented interlock caused it.

Trait Implementations

impl Clone for Stall

fn clone(&self) -> Stall

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Stall

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Stall

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Stall

fn eq(&self, other: &Stall) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Stall

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Stall

impl Eq for Stall

impl StructuralPartialEq for Stall