1 files changed, 11 insertions, 0 deletions
diff --git a/src/vcpu.h b/src/vcpu.h
index fccd397..3da6b37 100644
--- a/src/vcpu.h
+++ b/src/vcpu.h
@@ -1,5 +1,8 @@
 #pragma once
 
+#define VCPU_FREQ 600
+#define DTST_FREQ 60
+#define SCREEN_FREQ 60
 #define REG_FLAG 0xF
 
 typedef struct VCPU_State {
@@ -30,11 +33,19 @@ typedef struct VCPU_State {
   unsigned char N;
   unsigned char NN;
   unsigned short NNN;
+
+  // Keypressed
+  int keypress;
+  
+  // Count VCPU ticks
+  int dtst_ticks;
+  int screen_ticks;
 } VCPU_State;
 
 void VCPUInit();
 void VCPUFetch();
 void VCPUDecode();
 void VCPUExecute();
+void VCPUTick();
 void VCPUDoubleDabble(unsigned char x, unsigned char *u, unsigned char *t, unsigned char *h);
 void VCPUDump();