cpu.h

   1
   2
   3 #ifndef __CPU_H__
   4 #define __CPU_H__
   5
   6
   7
   8 #include "defs.h"
   9
  10
  11 union reg
  12 {
  13         byte b[2][2];
  14         word w[2];
  15         un32 d; /* padding for alignment, carry */
  16 };
  17
  18 struct cpu
  19 {
  20         union reg pc, sp, bc, de, hl, af;
  21         int ime, ima;
  22         int speed;
  23         int halt;
  24         int div, tim;
  25         int lcdc;
  26         int snd;
  27 };
  28
  29 extern struct cpu cpu;
  30
  31 void cpu_reset();
  32 void div_advance(int cnt);
  33 void timer_advance(int cnt);
  34 void lcdc_advance(int cnt);
  35 void sound_advance(int cnt);
  36 void cpu_timers(int cnt);
  37 int cpu_emulate(int cycles);
  38
  39 #endif
  40
  41