Added mock gdbstub implementation

src/main.c

@@ -2,6 +2,7 @@
 #include "memory/memory.h"
 #include "bootloader/bootloader.h"
 #include "cpu/rv32cpu.h"
+#include "gdbstub/gdbstub.h"
 
 char* CURRENT_NAME;
 
@@ -20,6 +21,12 @@ int main(int argc, char** argv)
     cpu_init();
     cpu0->pc = entry_point;
 
+    if(gdbstub)
+    {
+        gdbstub_start();
+        gdbstub_wait_for_connection();
+    }
+
     // CPU simulation
     cpu_loop(cpu0);