removed typedef, use default_time instead of fixed time

src/BASE_ISA.cpp

@@ -8,7 +8,7 @@
 
 #include "BASE_ISA.h"
 
-typedef enum {
+enum {
 	LUI = 0b0110111,
 	AUIPC = 0b0010111,
 	JAL = 0b1101111,

src/CPU.cpp

@@ -196,7 +196,7 @@ void CPU::CPU_thread(void) {
 			m_qk->sync();
 		}
 #else
-		sc_core::wait(10, sc_core::SC_NS);
+		sc_core::wait(default_time);
 #endif
 	} // while(1)
 } // CPU_thread