Enum EventBpKind 

#[repr(u8)]
pub enum EventBpKind {
    Nmi = 0,
    Irq = 1,
    Sprite0Hit = 2,
    OamDma = 3,
    DmcDma = 4,
    PpuRead = 5,
    PpuWrite = 6,
    ApuRead = 7,
    ApuWrite = 8,
    MapperRead = 9,
    MapperWrite = 10,
}

v1.4.0 Workstream D (D2) — the class of hardware event an event-driven breakpoint can trigger on.

These are tapped at the SAME observational commit points the event-viewer / interrupt-service / bus-access logs already use (Bus::cpu_read, Bus::cpu_write, Bus::notify_irq_service, the DMC-DMA GET, the $4014 write). A hit only RECORDS the event (kind + PPU position); it never mutates emulator-visible state, so the determinism contract holds and the feature-off build is byte-identical.

The 16 categories are packed into a u16 arm mask (see SystemBus::set_event_breakpoints); the bit index is the discriminant.

Variants

Nmi = 0

An NMI service entry ($FFFA), observed at the interrupt-service commit.

Irq = 1

An IRQ / BRK service entry ($FFFE), observed at the same commit.

Sprite0Hit = 2

A sprite-0 hit, observed when the CPU reads $2002 with bit 6 set (the point games actually detect the hit; purely observational).

OamDma = 3

An OAM DMA, observed at the $4014 write that starts it.

DmcDma = 4

A DMC DMA sample fetch (the GET cycle).

PpuRead = 5

A PPU-register read ($2000-$3FFF).

PpuWrite = 6

A PPU-register write ($2000-$3FFF).

ApuRead = 7

An APU / I/O-register read ($4000-$4017).

ApuWrite = 8

An APU / I/O-register write ($4000-$4017).

MapperRead = 9

A mapper-register read ($4020-$FFFF).

MapperWrite = 10

A mapper-register write ($4020-$FFFF).

Implementations

impl EventBpKind

pub const fn bit(self) -> u16

The arm-mask bit for this kind.

pub const fn label(self) -> &'static str

A human-readable label (used by the debugger UI + tests).

pub const fn all() -> [Self; 11]

All categories, in discriminant order (for the UI checkbox list).

Trait Implementations

impl Clone for EventBpKind

fn clone(&self) -> EventBpKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EventBpKind

impl Debug for EventBpKind

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

Formats the value using the given formatter.

impl Eq for EventBpKind

impl PartialEq for EventBpKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EventBpKind