diff --git a/sim/gate.lua b/sim/gate.lua
index 5b11b8a..25d7821 100644
--- a/sim/gate.lua
+++ b/sim/gate.lua
@@ -5,6 +5,7 @@ Gate = {}
 
 function Gate.new(objref, definition)
 	local o = {
+		-- Logic Critical
 		in_queue = 0,
 		logic = definition.logic,
 		ports = {},
diff --git a/sim/group.lua b/sim/group.lua
index e7c9c99..417c387 100644
--- a/sim/group.lua
+++ b/sim/group.lua
@@ -5,6 +5,7 @@ Group = {}
 
 function Group.new()
 	local o = {
+		-- Logic Critical
 		state = 0,
 		state_num = 0,
 		in_queue = 0,
@@ -193,6 +194,7 @@ function Group.setstate(group, state)
 	end
 end
 
+-- Logic Critical
 function Group.update(group)
 	Group.setstate(group, group.state_num>0 and 1 or 0)
 end
diff --git a/sim/port.lua b/sim/port.lua
index 59a724d..305c80a 100644
--- a/sim/port.lua
+++ b/sim/port.lua
@@ -20,7 +20,6 @@ Port = {}
 function Port.new(type, direction, position, causeupdate, idx, gate)
 	local o = {
 		group = nil,
-		
 		type = type,
 		direction = direction,
 		position = position,