fix(npc): fix branch, load memory and slt related instructions

npc/csrc/Flow/main.cpp

@@ -133,7 +133,7 @@ int main(int argc, char **argv, char **env) {
     std::filesystem::path ref{config.lib_ref};
     RefTrmInterface ref_interface{ref};
     DifftestTrmInterface diff_interface{NPC::npc_interface, ref_interface,
-                                        pmem_get(), 1024};
+                                        pmem_get(), 128 * 1024};
     SDB::SDB sdb_diff{diff_interface};
 
     int t = 8;