Struct GPU

pub struct GPU {
    pub scanline: u32,
    pub crtc: CRTC,
    pub dac: DAC,
    pub font_14: MemoryAddress,
    pub font_16: MemoryAddress,
    pub card: GraphicCard,
    pub mode: VideoModeBlock,
    /* private fields */
}

Fields

scanline: u32

crtc: CRTC

dac: DAC

font_14: MemoryAddress

font_16: MemoryAddress

card: GraphicCard

mode: VideoModeBlock

Implementations

impl GPU

pub fn default() -> Self

pub fn render_frame(&self, mmu: &MMU) -> VideoFrame

pub fn set_mode(&mut self, mmu: &mut MMU, mode: u8)

int 10h, ah = 00h SET VIDEO MODE

pub fn set_active_page(&mut self, mmu: &mut MMU, page: u8)

int 10h, ah = 05h SELECT ACTIVE DISPLAY PAGE

pub fn get_active_page(&self, mmu: &mut MMU) -> u8

returns the active display page value

pub fn set_cursor_pos(&mut self, mmu: &mut MMU, row: u8, col: u8, page: u8)

int 10h, ah = 02h SET CURSOR POSITION

pub fn write_char( &mut self, mmu: &mut MMU, chr: u16, attr: u8, page: u8, count: u16, showattr: bool, )

int 10h, ah = 0Ah WRITE CHARACTER ONLY AT CURSOR POSITION

pub fn teletype_output(&mut self, mmu: &mut MMU, chr: u8, page: u8, attr: u8)

int 10h, ah = 0Eh TELETYPE OUTPUT Display a character on the screen, advancing the cursor and scrolling the screen as necessary

pub fn write_pixel( &mut self, mmu: &mut MMU, x: u16, y: u16, _page: u8, color: u8, )

int 10h, ah = 0Ch WRITE GRAPHICS PIXEL color: if bit 7 is set, value is XOR’ed onto screen except in 256-color modes

pub fn read_dac_block( &mut self, mmu: &mut MMU, index: u16, count: u16, seg: u16, off: u16, )

int 10h, ax = 1017h READ BLOCK OF DAC REGISTERS (VGA/MCGA)

pub fn load_graphics_chars(&mut self, mmu: &mut MMU, row: u8, dl: u8)

int 10h, ax = 1124h GRAPH-MODE CHARGEN - LOAD 8x16 GRAPHICS CHARS (VGA,MCGA)

pub fn write_string( &mut self, mmu: &mut MMU, row: u8, col: u8, flag: u8, attr: u8, str_seg: u16, str_off: u16, count: u16, page: u8, )

int 10h, ah = 13h WRITE STRING (AT and later,EGA)

pub fn get_individual_palette_register(&self, _reg: u8) -> u8

int 10h, ax = 1007h GET INDIVIDUAL PALETTE REGISTER (VGA,UltraVision v2+)

pub fn set_individual_dac_register( &mut self, mmu: &mut MMU, index: u8, r: u8, g: u8, b: u8, )

int 10h, ax = 1010h SET INDIVIDUAL DAC REGISTER (VGA/MCGA) color components in 6-bit values (0-63)

pub fn set_dac_block( &mut self, mmu: &mut MMU, index: u16, count: u16, seg: u16, off: u16, )

int 10, ax = 1012h SET BLOCK OF DAC REGISTERS (VGA/MCGA)

pub fn get_individual_dac_register(&mut self, reg: u8) -> (u8, u8, u8)

int 10h, ax = 1015h READ INDIVIDUAL DAC REGISTER (VGA/MCGA)

pub fn progress_scanline(&mut self)

HACK to have a source of info to toggle CGA status register

pub fn read_cga_status_register(&self) -> u8

CGA status register (0x03DA) color EGA/VGA: input status 1 register

pub fn init(&mut self, mmu: &mut MMU)

Trait Implementations

impl Clone for GPU

fn clone(&self) -> GPU

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Component for GPU

fn in_u8(&mut self, port: u16) -> Option<u8>

returns Some if read was handled

fn out_u8(&mut self, port: u16, data: u8) -> bool

returns true if write was handled

fn out_u16(&mut self, port: u16, data: u16) -> bool

returns true if write was handled

fn int(&mut self, int: u8, cpu: &mut CPU, mmu: &mut MMU) -> bool

returns true if interrupt was handled