working on debug menu

include/cpu.h

@@ -33,6 +33,7 @@ typedef struct {
     bool enabling_ime;
     u8 ie_register;
     u8 int_flags;
+    u16 inst_pc;
 } cpu_context;
 
 typedef struct {
@@ -42,6 +43,8 @@ typedef struct {
 void cpu_save_state(cpu_state*);
 void cpu_load_state(const cpu_state*);
 
+void fetch_instruction(cpu_context *ctx);
+
 void cpu_init();
 bool cpu_step();
 

include/debug.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <common.h>
+
+typedef enum {
+    DS_MAIN,
+    DS_DISASSEMBLE
+} debug_state;
+
+typedef struct {
+    debug_state state;
+    u16 dissasembly_scroll;
+    u16 dissasembly_target; 
+    u16 dissasembly_pc;
+} debug_context;
+
+void debug_update();
+debug_context *debug_get_context();
+void debug_init();

include/emu.h

@@ -9,6 +9,8 @@ typedef struct {
     u64 ticks;
     const char *app_path;
     bool fast_forward;
+    bool debug;
+    u8 step;
 } emu_context;
 
 int emu_run(int, char**);