add various optimizations

sim/gate.lua

@@ -1,14 +1,20 @@
 
+local ffi = FFI
+
 Gate = {}
 
 function Gate.new(objref, definition)
 	local o = {
+		--in_queue = ffi.new("bool", false),
+		--in_queue = false,
+		--in_queue = ffi.new("long long", 0),
+		in_queue = 0,
+		port_nets = {},
+		logic = definition.logic,
+		ports = {},
+		
 		objref = objref,
 		definition = definition,
-		ports = {},
-		port_nets = {},
-		in_queue = false,
-		logic = definition.logic,
 	}
 	return o
 end