more optimizations: move port states into gates, inline net queue checks

sim/gate.lua

@@ -5,13 +5,11 @@ 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 = {},
+		port_nets = {},
+		port_states = {},
 		
 		objref = objref,
 		definition = definition,
@@ -19,30 +17,33 @@ function Gate.new(objref, definition)
 	return o
 end
 
-function Gate.addport(gate, port)
-	gate.ports[#gate.ports+1] = port
-	Port.setgate(port, gate)
-end
-
 -- Logic Critical
 function Gate.getportstate(gate, index)
+	--return gate[index*2].state
 	return gate.port_nets[index].state
 end
 
 -- Logic Critical
 function Gate.setportstate(gate, index, state)
-	local port = gate.ports[index]
-	if state ~= port.state then
-		local group = port.group
-		group.state_num = group.state_num - port.state + state
-		port.state = state
+	--if state ~= gate[index*2+1] then
+	if state ~= gate.port_states[index] then
+		--local group = gate[index*2]
+		local group = gate.port_nets[index]
+		--group.state_num = group.state_num - gate[index*2+1] + state
+		group.state_num = group.state_num - gate.port_states[index] + state
+		--gate[index*2+1] = state
+		gate.port_states[index] = state
 		
-		if (group.state_num>0) ~= (group.state==1) then
+		if (group.state_num>0) ~= (group.state==1) and (group.in_queue==0) then
 			Simulation.queuegroup(GSim, group)
 		end
 	end
 end
 
+function Gate.preinit(gate)
+	
+end
+
 function Gate.initdata(gate)
 	gate.data = {}
 end

sim/gatedef.lua

@@ -82,7 +82,13 @@ function GateDefinition.constructgate(def, objref, position, rotation)
 			pos[2] = x
 		end
 		
-		Gate.addport(gate, Port.new(type, dir, {position[1]+pos[1], position[2]+pos[2], position[3]+pos[3]}, portd.causeupdate, i))
+		local port = Port.new(type, dir, {position[1]+pos[1], position[2]+pos[2], position[3]+pos[3]}, portd.causeupdate, i, gate)
+		
+		gate.ports[port.idx] = port
+		--gate[port.idx*2] = nil
+		--gate[port.idx*2+1] = 0
+		gate.port_nets[port.idx] = nil
+		gate.port_states[port.idx] = 0
 	end
 	
 	return gate

sim/group.lua

@@ -5,13 +5,8 @@ Group = {}
 
 function Group.new()
 	local o = {
-		--state = ffi.new("long long", 0),
 		state = 0,
-		--state_num = ffi.new("long long", 0),
 		state_num = 0,
-		--in_queue = ffi.new("bool", false),
-		--in_queue = false,
-		--in_queue = ffi.new("long long", 0),
 		in_queue = 0,
 		gates_update = {},
 		num_gates_update = 0,
@@ -44,10 +39,12 @@ function Group.addwire(group, wire)
 			Wire.setgroup(wire, group)
 			Wire.update(wire)
 			
+			if group.in_queue==0 then
 				Simulation.queuegroup(GSim, group)
 			end
 		end
 	end
+end
 
 function Group.removewire(group, wire)
 	Wire.setgroup(wire, nil)
@@ -186,11 +183,9 @@ function Group.setstate(group, state)
 		group.state = state
 		group.update_tick = sim.current_tick
 		
-		--for k, gate in ipairs(group.gates_update) do
 		local len = group.num_gates_update
 		for i = 1, len do
-			local gate = group.gates_update[i]
-			Simulation.queuegate(sim, gate)
+			Simulation.queuegate(sim, group.gates_update[i])
 		end
 		
 		Simulation.queuegroupfx(sim, group)

sim/network.lua

@@ -205,8 +205,6 @@ function network_update()
 			i = i + 1
 		end
 	elseif err == "closed" then
-		--sim = Simulation.new(Simulation)
-		--acceptclient()
 		print("Connection closed")
 		error()
 	end

sim/port.lua

@@ -17,17 +17,15 @@ PortDirections = {
 
 Port = {}
 
-function Port.new(type, direction, position, causeupdate, idx)
+function Port.new(type, direction, position, causeupdate, idx, gate)
 	local o = {
-		--state = ffi.new("long long", 0),
-		state = 0,
 		group = nil,
 		
 		type = type,
 		direction = direction,
 		position = position,
 		causeupdate = causeupdate,
-		gate = nil,
+		gate = gate,
 		idx = idx,
 	}
 	return o
@@ -50,12 +48,9 @@ function Port.getgate(port)
 	return port.gate
 end
 
-function Port.setgate(port, gate)
-	port.gate = gate
-end
-
 function Port.setgroup(port, group)
 	port.group = group
+	--Port.getgate(port)[port.idx*2] = group
 	Port.getgate(port).port_nets[port.idx] = group
 end
 
@@ -68,5 +63,5 @@ function Port.gettype(port)
 end
 
 function Port.getstate(port)
-	return port.state
+	return Port.getgate(port).port_states[port.idx]
 end

sim/simulation.lua

@@ -116,6 +116,7 @@ function Simulation.addgate(sim, gate)
 
 	sim.ngates = sim.ngates + 1
 	
+	Gate.preinit(gate)
 	Simulation.queuegateinit(sim, gate)
 	Simulation.queuegate(sim, gate)
 end
@@ -239,7 +240,8 @@ end
 -- Logic Critical
 function Simulation.queuegate(sim, gate)
 	if gate.in_queue==0 then
-		table.insert(sim.gatequeue, gate)
+		--table.insert(sim.gatequeue, gate)
+		sim.gatequeue[sim.num_gatequeue+1] = gate
 		sim.num_gatequeue = sim.num_gatequeue + 1
 		gate.in_queue = 1
 	end
@@ -265,12 +267,11 @@ end
 
 -- Logic Critical
 function Simulation.queuegroup(sim, group)
-	if group.in_queue==0 then
-		--table.insert(sim.groupqueue, group)
+	--if group.in_queue==0 then
 		sim.groupqueue[sim.num_groupqueue+1] = group
 		sim.num_groupqueue = sim.num_groupqueue + 1
 		group.in_queue = 1
-	end
+	--end
 end
 
 function Simulation.dequeuegroup(sim, group)
@@ -306,7 +307,6 @@ end
 
 -- Logic Critical
 function Simulation.ticklogic(sim)
-	--for k, group in ipairs(sim.groupqueue) do
 	local len = sim.num_groupqueue
 	for i = 1, len do
 		local group = sim.groupqueue[i]
@@ -323,7 +323,6 @@ function Simulation.ticklogic(sim)
 		sim.tickqueue[sim.current_tick] = nil
 	end
 	
-	--for k, gate in ipairs(sim.gatequeue) do
 	local len = sim.num_gatequeue
 	for i = 1, len do
 		local gate = sim.gatequeue[i]