Struct NesHeader

pub struct NesHeader {
    pub variant: NesVariant,
    pub mapper_num: u16,
    pub submapper_num: u8,
    pub flags: u8,
    pub prg_rom_banks: u16,
    pub chr_rom_banks: u16,
    pub prg_ram_shift: u8,
    pub chr_ram_shift: u8,
    pub tv_mode: u8,
    pub vs_data: u8,
}

An iNES or NES 2.0 formatted header representing hardware specs of a given NES cartridge.

https://wiki.nesdev.org/w/index.php/INES https://wiki.nesdev.org/w/index.php/NES_2.0 https://nesdev.org/NESDoc.pdf (page 28)

Fields

variant: NesVariant

mapper_num: u16

submapper_num: u8

flags: u8

prg_rom_banks: u16

chr_rom_banks: u16

prg_ram_shift: u8

chr_ram_shift: u8

tv_mode: u8

vs_data: u8

Implementations

impl NesHeader

pub fn from_path<P: AsRef<Path>>(path: P) -> Result<Self>

Load NesHeader from a ROM path.

Errors

If the NES header is corrupted, the ROM file cannot be read, or the data does not match the header, then an error is returned.

pub fn load<F: Read>(rom_data: &mut F) -> Result<Self>

Load NesHeader from ROM data.

Errors

If the NES header is invalid, then an error is returned.

pub const fn mapper_board(mapper_num: u16) -> &'static str

Trait Implementations

impl Clone for NesHeader

fn clone(&self) -> NesHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NesHeader

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

Formats the value using the given formatter.

impl Default for NesHeader

fn default() -> NesHeader

Returns the “default value” for a type.

impl PartialEq for NesHeader

fn eq(&self, other: &NesHeader) -> 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 Copy for NesHeader

impl Eq for NesHeader

impl StructuralPartialEq for NesHeader