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typedef struct Event Event;
typedef struct MBC3Timer MBC3Timer;
extern u16int curpc;
extern uchar *rom, *back, reg[256], oam[256];
extern MBC3Timer timer;
extern uchar vram[16384];
extern int nrom, nback, nbackbank;
extern u32int pal[64];
extern u8int dma;
extern u32int divclock;
extern Event *elist;
extern ulong clock;
extern u8int ppuy, ppustate, ppuw;
extern u8int apustatus;
extern u8int mode;
extern u8int mbc, feat;
enum {
JOYP = 0x00,
SB = 0x01,
SC = 0x02,
DIV = 0x04,
TIMA = 0x05,
TMA = 0x06,
TAC = 0x07,
IF = 0x0F,
NR10 = 0x10,
NR11 = 0x11,
NR12 = 0x12,
NR13 = 0x13,
NR14 = 0x14,
NR21 = 0x16,
NR22 = 0x17,
NR23 = 0x18,
NR24 = 0x19,
NR30 = 0x1A,
NR31 = 0x1B,
NR32 = 0x1C,
NR33 = 0x1D,
NR34 = 0x1E,
NR41 = 0x20,
NR42 = 0x21,
NR43 = 0x22,
NR44 = 0x23,
NR50 = 0x24,
NR51 = 0x25,
NR52 = 0x26,
WAVE = 0x30,
LCDC = 0x40,
STAT = 0x41,
SCY = 0x42,
SCX = 0x43,
LY = 0x44,
LYC = 0x45,
DMA = 0x46,
BGP = 0x47,
OBP0 = 0x48,
OBP1 = 0x49,
WY = 0x4A,
WX = 0x4B,
KEY1 = 0x4D,
VBK = 0x4F,
RP = 0x56,
HDMASH = 0x51,
HDMASL = 0x52,
HDMADH = 0x53,
HDMADL = 0x54,
HDMAC = 0x55,
BCPS = 0x68,
BCPD = 0x69,
OCPS = 0x6A,
OCPD = 0x6B,
SVBK = 0x70,
IE = 0xFF
};
enum {
LCDEN = 0x80,
WINMAP = 0x40,
WINEN = 0x20,
BGTILE = 0x10,
BGMAP = 0x08,
SPR16 = 0x04,
SPREN = 0x02,
BGEN = 0x01,
BGPRI = 0x01,
IRQLYC = 0x40,
IRQM2 = 0x20,
IRQM1 = 0x10,
IRQM0 = 0x08,
IRQVBL = 1,
IRQLCDS = 2,
IRQTIM = 4,
IRQSER = 8,
IRQJOY = 16,
};
enum {
CGB = 1,
COL = 2,
TURBO = 4,
FORCEDMG = 8,
FEATRAM = 1,
FEATBAT = 2,
FEATTIM = 4,
DMAREADY = 1,
DMAHBLANK = 2,
INIT = -1,
SAVE = -2,
RSTR = -3,
READ = -4,
};
enum {
TIMERSIZ = 18,
PICW = 160,
PICH = 144,
FREQ = 1<<23
};
struct Event {
int time;
void (*f)(void *);
Event *next;
void *aux;
};
extern Event *elist;
struct MBC3Timer {
vlong ns;
u8int sec, min, hr, dl, dh;
};
typedef struct Var Var;
struct Var {
void *a;
int s, n;
};
#define VAR(a) {&a, sizeof(a), 1}
#define ARR(a) {a, sizeof(*a), nelem(a)}
enum { NEVENT = 9 };
extern int (*mapper)(int, int);
extern u32int moncols[4];
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