ref: 23fe5dd09ffe2e3c2d925945bc1adcbf6fc6fc97
dir: /dat.h/
extern u32int irq;
extern u8int reg[16];
extern u8int z80bus, z80irq;
extern u16int spc, scurpc;
extern u16int ram[32768];
extern u8int *prg;
extern u8int *rom;
extern u8int *mem;
extern int nbank;
extern int slotaddr[3];
extern u16int ram_bank;
extern u8int ram_enabled;
extern u8int vram[32768], vsram[40];
extern u8int cram[64];
extern u32int cramc[64];
extern int vdpx, vdpy, frame, intla;
extern u8int portDC;
extern u8int portDD;
enum {
MODE1 = 0x00,
MODE2 = 0x01,
PANT = 0x02,
PWNT = 0x03,
PBNT = 0x04,
SPRTAB = 0x05,
SPRADDR = 0x06,
BGCOL = 0x07,
HORSCR = 0x08,
VERSCR = 0x09,
HORCTR = 0x0a,
IE0 = 0x20,
IE1 = 0x10,
STATCOLL= 0x20,
STATOVR = 0x40,
STATINT = 0x80,
};
enum {
BUSREQ = 1,
BUSACK = 2,
RESET = 4,
INTVBL = 1,
INTHOR = 2,
};
enum {
PSGCLOCK = 3579545,
FREQ = PSGCLOCK * 12,
Z80DIV = 12,
RATE = 44100,
SAMPDIV = FREQ / RATE,
SAVEFREQ = FREQ / 4,
PSGDIV = 16,
};
enum {
SRAM = 0x01,
BATTERY = 0x02,
ADDRMASK = 0x0c,
ADDRBOTH = 0x00,
ADDREVEN = 0x08,
ADDRODD = 0x0c,
SRAMEN = 0x10,
};