bsnes/higan/fc/ppu/ppu.hpp

109 lines
2.0 KiB
C++

struct PPU : Thread {
static auto Enter() -> void;
auto main() -> void;
auto tick() -> void;
auto scanline() -> void;
auto frame() -> void;
auto refresh() -> void;
auto power() -> void;
auto reset() -> void;
auto readIO(uint16 addr) -> uint8;
auto writeIO(uint16 addr, uint8 data) -> void;
auto ciram_read(uint16 addr) -> uint8;
auto ciram_write(uint16 addr, uint8 data) -> void;
auto cgram_read(uint16 addr) -> uint8;
auto cgram_write(uint16 addr, uint8 data) -> void;
auto raster_enable() const -> bool;
auto nametable_addr() const -> uint;
auto scrollx() const -> uint;
auto scrolly() const -> uint;
auto sprite_height() const -> uint;
auto chr_load(uint16 addr) -> uint8;
auto scrollx_increment() -> void;
auto scrolly_increment() -> void;
auto raster_pixel() -> void;
auto raster_sprite() -> void;
auto raster_scanline() -> void;
auto serialize(serializer&) -> void;
struct Status {
uint8 mdr;
bool field;
uint lx;
uint ly;
uint8 bus_data;
bool address_latch;
uint15 vaddr;
uint15 taddr;
uint8 xaddr;
bool nmi_hold;
bool nmi_flag;
//$2000
bool nmi_enable;
bool master_select;
bool sprite_size;
uint bg_addr;
uint sprite_addr;
uint vram_increment;
//$2001
uint3 emphasis;
bool sprite_enable;
bool bg_enable;
bool sprite_edge_enable;
bool bg_edge_enable;
bool grayscale;
//$2002
bool sprite_zero_hit;
bool sprite_overflow;
//$2003
uint8 oam_addr;
} status;
struct Raster {
uint16 nametable;
uint16 attribute;
uint16 tiledatalo;
uint16 tiledatahi;
uint oam_iterator;
uint oam_counter;
struct OAM {
uint8 id;
uint8 y;
uint8 tile;
uint8 attr;
uint8 x;
uint8 tiledatalo;
uint8 tiledatahi;
} oam[8], soam[8];
} raster;
uint32 buffer[256 * 262];
uint8 ciram[2048];
uint8 cgram[32];
uint8 oam[256];
};
extern PPU ppu;