Struct ScreenLayout 

pub struct ScreenLayout {
    pub return_bottom_ptr: u32,
    pub return_top_ptr: u32,
    pub environments_ptr: u32,
    pub shown_grob_ptr: u32,
    pub pict_ptr: u32,
    pub base_depth: u32,
    pub outer_frame: u32,
}

Where a model’s ROM keeps what the screen state is read from (wiki: hardware/ui-state). The *_ptr fields hold 5-nibble pointers.

Fields

return_bottom_ptr: u32

The bottom of the return stack (HeapStart in the 1991 address list).

return_top_ptr: u32

The saved B, the return stack’s top (FramePtr).

environments_ptr: u32

The newest temporary environment (local_vars).

shown_grob_ptr: u32

The GROB the display shows below the header (Stk_56line_GROB_ptr).

pict_ptr: u32

PICT (graph_GROB_ptr).

base_depth: u32

Return-stack entries at the stack with no program halted.

outer_frame: u32

Which entry from the bottom (1 = the bottom one) is the outer loop’s frame.

Implementations

impl ScreenLayout

pub const HP48SX: ScreenLayout

48SX (ROM J): the 1991 address list’s locations.

pub const HP48GX: ScreenLayout

48GX (ROM R): the 48SX’s plus #1017F.

pub const HP49G: ScreenLayout

49G (ROM 2.10): the 48GX’s addresses; one more entry at the bottom.

pub fn of(model: Model) -> Option<ScreenLayout>

The layout of model, or None where there is none (as EditorLayout::of).

Trait Implementations

impl Clone for ScreenLayout

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ScreenLayout

impl Debug for ScreenLayout

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

Formats the value using the given formatter.

impl Eq for ScreenLayout

impl PartialEq for ScreenLayout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ScreenLayout