apps/plugins/rockboy/cpu-gb.h

   1
   2
   3 #ifndef __CPU_GB_H__
   4 #define __CPU_GB_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 #ifdef DYNAREC
  21     union reg a,b,c,d,e,hl,f,sp,pc;
  22 #else
  23     union reg pc, sp, bc, de, hl, af;
  24 #endif
  25     int ime, ima;
  26     unsigned int speed;
  27     unsigned int halt;
  28     unsigned int div;
  29     int tim;
  30     int lcdc;
  31     int snd;
  32 };
  33
  34 extern struct cpu cpu;
  35
  36 #ifdef DYNAREC
  37 struct dynarec_block {
  38     union reg address;
  39     void *block;
  40     int length;
  41     struct dynarec_block *next;
  42 };
  43
  44 #define HASH_SIGNIFICANT_LOWER_BITS 8
  45 #define HASH_BITMASK ((1<<HASH_SIGNIFICANT_LOWER_BITS)-1)
  46
  47 extern struct dynarec_block *address_map[1<<HASH_SIGNIFICANT_LOWER_BITS];
  48 extern int blockclen;
  49 #endif
  50
  51 void cpu_reset(void);
  52 void cpu_timers(int cnt) ICODE_ATTR;
  53 int cpu_emulate(int cycles) ICODE_ATTR;
  54
  55 #endif