Struct EditorLayout 

pub struct EditorLayout {
    pub text_end_ptr: u32,
    pub stack_end_ptr: u32,
    pub cursor: u32,
    pub entry: u32,
    pub line: u32,
    pub keys: u32,
    pub alpha_lock: u32,
    pub program: u32,
    pub message: u32,
    pub message_box: bool,
    pub chars_position: Option<u32>,
}

Where a model’s ROM keeps its editor in RAM (wiki: hardware/command-line). *_ptr fields hold 5-nibble pointers; the others are nibbles whose bits are listed with them.

Fields

text_end_ptr: u32

Pointer just past the text’s first character (the temporary environments, local_vars in the 1991 address list).

stack_end_ptr: u32

Pointer past the data stack, the lowest the text may reach.

cursor: u32

The cursor, 5 nibbles, in characters from the start.

entry: u32

Bit 1 insert mode, bit 2 algebraic entry.

line: u32

Bit 1 a command line is open, bit 2 lowercase lock.

keys: u32

Bit 0 left shift, bit 1 right shift, bit 2 alpha.

alpha_lock: u32

Bit 0 alpha lock.

program: u32

Bit 0 program entry.

message: u32

The message nibble: on the 48 bit 0 is set while the header shows a message (an error); on the 49G it, or the nibble after it, reads #F while an error box has the keyboard.

message_box: bool

Errors show in a box (49G), not in the header (48).

chars_position: Option<u32>

The byte the 49G’s CHARS application opens on (it remembers the last one); None where CHARS always opens on 128 (48GX) or does not exist (48SX).

Implementations

impl EditorLayout

pub const HP48SX: EditorLayout

48SX (ROM J).

pub const HP48GX: EditorLayout

48GX (ROM R).

pub const HP49G: EditorLayout

49G (ROM 2.10).

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

The layout of model, or None for the aplet models, the Pioneers (42S, 27S, 17BII, 17B), the 28S (read by read_hp28) and the 19BII.

pub fn require(model: Model) -> Result<EditorLayout, Error>

The layout of model or Error::NoCommandLine, which names what the model lacks.

Trait Implementations

impl Clone for EditorLayout

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 EditorLayout

impl Debug for EditorLayout

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

Formats the value using the given formatter.

impl Eq for EditorLayout

impl PartialEq for EditorLayout

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EditorLayout