adds generation if IMEM space

src/iss/arch/tgc5c.h

@@ -81,7 +81,7 @@ template <> struct traits<tgc5c> {
 
     enum sreg_flag_e { FLAGS };
 
-    enum mem_type_e { MEM, FENCE, RES, CSR };
+    enum mem_type_e { MEM, FENCE, RES, CSR, IMEM = MEM };
     
     enum class opcode_e {
         LUI = 0,