ref: 8e17f816a22547808ca6ef2dc8785b224868015c
dir: /dat.h/
#include <stdint.h>
extern uint32_t irq;
extern uint8_t reg[16];
extern uint8_t z80bus, z80irq;
extern uint16_t pc, curpc;
extern uint16_t ram[32768];
extern uint8_t *prg;
extern uint8_t *rom;
extern uint8_t *mem;
extern uint8_t vram[32768], vsram[40];
extern uint8_t cram[64];
extern uint32_t cramc[64];
extern int vdpx, vdpy, frame, intla;
extern uint8_t portDC;
extern uint8_t portDD;
enum {
MODE1 = 0x00,
MODE2 = 0x01,
PANT = 0x02,
PWNT = 0x03,
PBNT = 0x04,
SPRTAB = 0x05,
BGCOL = 0x07,
HORSCR = 0x08,
VERSCR = 0x09,
HORCTR = 0x0a,
IE0 = 0x20,
IE1 = 0x10,
STATVBL = 0x08,
STATFR = 0x10,
STATCOLL= 0x20,
STATOVR = 0x40,
STATINT = 0x80,
};
enum {
BUSREQ = 1,
BUSACK = 2,
RESET = 4,
INTVBL = 1,
INTHOR = 2,
};
enum {
FREQ = 53203400,
YMDIV = 7 * 6,
CPUDIV = 7,
Z80DIV = 15,
RATE = 44100,
SAMPDIV = FREQ / RATE,
SAVEFREQ = FREQ / 4,
};
enum {
SRAM = 0x01,
BATTERY = 0x02,
ADDRMASK = 0x0c,
ADDRBOTH = 0x00,
ADDREVEN = 0x08,
ADDRODD = 0x0c,
SRAMEN = 0x10,
};