Struct HdmaCtrl 

pub struct HdmaCtrl(/* private fields */);

Available on crate feature cgb only.

VRAM DMA length, mode, and start (HDMA5).

Bit	Field	Access	Meaning
7	hblank	R/W	Write: set = HBlank DMA, clear = general-purpose. Read: set = no transfer active.
6-0	blocks	R/W	Transfer length in 16-byte blocks, minus one (0 = one block).

Implementations

impl HdmaCtrl

pub const fn new() -> Self

Creates a new default initialized bitfield.

pub const fn from_bits(bits: u8) -> Self

Convert from bits.

pub const fn into_bits(self) -> u8

Convert into bits.

pub const fn blocks(&self) -> u8

Transfer length in 16-byte blocks, minus one (0 means one block).

Bits: 0..7

pub const fn with_blocks_checked(self, value: u8) -> Result<Self, ()>

Transfer length in 16-byte blocks, minus one (0 means one block).

Bits: 0..7

pub const fn with_blocks(self, value: u8) -> Self

Transfer length in 16-byte blocks, minus one (0 means one block).

Bits: 0..7

pub const fn set_blocks(&mut self, value: u8)

Transfer length in 16-byte blocks, minus one (0 means one block).

Bits: 0..7

pub const fn set_blocks_checked(&mut self, value: u8) -> Result<(), ()>

Transfer length in 16-byte blocks, minus one (0 means one block).

Bits: 0..7

pub const fn hblank(&self) -> bool

On write: true selects HBlank DMA, false general-purpose DMA. On read: true means no transfer is currently active.

Bits: 7..8

pub const fn with_hblank_checked(self, value: bool) -> Result<Self, ()>

On write: true selects HBlank DMA, false general-purpose DMA. On read: true means no transfer is currently active.

Bits: 7..8

pub const fn with_hblank(self, value: bool) -> Self

On write: true selects HBlank DMA, false general-purpose DMA. On read: true means no transfer is currently active.

Bits: 7..8

pub const fn set_hblank(&mut self, value: bool)

On write: true selects HBlank DMA, false general-purpose DMA. On read: true means no transfer is currently active.

Bits: 7..8

pub const fn set_hblank_checked(&mut self, value: bool) -> Result<(), ()>

On write: true selects HBlank DMA, false general-purpose DMA. On read: true means no transfer is currently active.

Bits: 7..8

Trait Implementations

impl Clone for HdmaCtrl

fn clone(&self) -> HdmaCtrl

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HdmaCtrl

impl Debug for HdmaCtrl

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

Formats the value using the given formatter.

impl Default for HdmaCtrl

fn default() -> Self

Returns the “default value” for a type.

impl Eq for HdmaCtrl

impl From<HdmaCtrl> for u8

fn from(v: HdmaCtrl) -> Self

Converts to this type from the input type.

impl From<u8> for HdmaCtrl

fn from(v: u8) -> Self

Converts to this type from the input type.

impl PartialEq for HdmaCtrl

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for HdmaCtrl