mirror of https://github.com/bsnes-emu/bsnes.git
108 lines
1.8 KiB
C++
108 lines
1.8 KiB
C++
struct PPU : Thread {
|
|
static void Main();
|
|
void main();
|
|
void tick();
|
|
|
|
void scanline();
|
|
void frame();
|
|
|
|
void power();
|
|
void reset();
|
|
|
|
uint8 read(uint16 addr);
|
|
void write(uint16 addr, uint8 data);
|
|
|
|
uint8 ciram_read(uint16 addr);
|
|
void ciram_write(uint16 addr, uint8 data);
|
|
|
|
uint8 cgram_read(uint16 addr);
|
|
void cgram_write(uint16 addr, uint8 data);
|
|
|
|
bool raster_enable() const;
|
|
unsigned nametable_addr() const;
|
|
unsigned scrollx() const;
|
|
unsigned scrolly() const;
|
|
unsigned sprite_height() const;
|
|
|
|
uint8 chr_load(uint16 addr);
|
|
|
|
void scrollx_increment();
|
|
void scrolly_increment();
|
|
|
|
void raster_pixel();
|
|
void raster_sprite();
|
|
void raster_scanline();
|
|
|
|
void serialize(serializer&);
|
|
|
|
struct Status {
|
|
uint8 mdr;
|
|
|
|
bool field;
|
|
unsigned lx;
|
|
unsigned 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;
|
|
unsigned bg_addr;
|
|
unsigned sprite_addr;
|
|
unsigned 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;
|
|
|
|
unsigned oam_iterator;
|
|
unsigned 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;
|