diff --git a/sim/compiled_sim.c b/sim/compiled_sim.c
index 3a2eb51..09b28bd 100644
--- a/sim/compiled_sim.c
+++ b/sim/compiled_sim.c
@@ -12,6 +12,9 @@ struct Gate {
 	int** port_net_in_queue;
 	struct Net** port_nets_c;
 	int objref;
+	int logic_function;
+	int data_size;
+	int* data;
 };
 struct Net {
 	int* state;
@@ -23,16 +26,35 @@ struct Net {
 	int id;
 };
 
-
-void sim_set_data(struct Net** net_queue, int* num_net_queue, struct Gate** gate_queue, int* num_gate_queue, int* current_tick, int queue_max);
-void sim_update_nets();
-
 struct Net** net_queue;
 int* num_net_queue;
 struct Gate** gate_queue;
 int* num_gate_queue;
 int* current_tick;
-int queue_max;
+static const int queue_max = 65536;
+
+typedef void(*GateFunc)(struct Gate*);
+int sim_gate_get_port(struct Gate* gate, int port);
+void sim_gate_set_port(struct Gate* gate, int port, int val);
+int sim_gate_get_data(struct Gate* gate, int addr);
+void sim_gate_set_data(struct Gate* gate, int addr, int val);
+#define GATEFUNCID(name) GateFunc_##name##_F
+#define GATEFUNC(name) void GATEFUNCID(name)(struct Gate* gate)
+#define setport(i, v) sim_gate_set_port(gate, i, v)
+#define getport(i) sim_gate_get_port(gate, i)
+#define setdata(i, v) sim_gate_set_data(gate, i, v)
+#define getdata(i) sim_gate_get_data(gate, i)
+
+#include "compiled_sim_gates.c"
+
+#undef setport
+#undef getport
+
+void sim_set_data(struct Net** net_queue, int* num_net_queue, struct Gate** gate_queue, int* num_gate_queue, int* current_tick, int queue_max);
+void sim_update_nets();
+void sim_update_gates();
+
+////
 
 void sim_set_data(struct Net** net_queue_in, int* num_net_queue_in, struct Gate** gate_queue_in, int* num_gate_queue_in, int* current_tick_in, int queue_max_in) {
 	net_queue = net_queue_in;
@@ -40,7 +62,7 @@ void sim_set_data(struct Net** net_queue_in, int* num_net_queue_in, struct Gate*
 	gate_queue = gate_queue_in;
 	num_gate_queue = num_gate_queue_in;
 	current_tick = current_tick_in;
-	queue_max = queue_max_in;
+	//queue_max = queue_max_in;
 }
 
 void sim_update_net(struct Net* net);
@@ -54,14 +76,39 @@ void sim_update_nets() {
 	*num_net_queue = 0;
 }
 
+void sim_update_gate(struct Gate* gate);
+void sim_dequeue_gate(int i) {
+	gate_queue[i] = gate_queue[*num_gate_queue-1];
+	gate_queue[*num_gate_queue-1] = 0;
+	(*num_gate_queue)--;
+}
+void sim_update_gates() {
+	for(int i=0; i<*num_gate_queue; i++) {
+		struct Gate* gate = gate_queue[i];
+		if(gate->logic_function != 0) {
+			sim_dequeue_gate(i);
+			sim_logic_functions[gate->logic_function](gate);
+			i--;
+		}
+	}
+}
+
 ////
 
 void sim_queue_gate(struct Gate* gate) {
-	assert(*num_gate_queue < queue_max);
-	gate_queue[*num_gate_queue++] = gate;
+	assert(*num_gate_queue < queue_max - 1);
+	gate_queue[(*num_gate_queue)++] = gate;
 	*(gate->in_queue) = 1;
 }
 
+void sim_queue_net(struct Net* net) {
+	assert(*num_net_queue < queue_max - 1);
+	net_queue[(*num_net_queue)++] = net;
+	*(net->in_queue) = 1;
+}
+
+////
+
 void sim_update_net(struct Net* net) {
 	int state = *(net->state_num) > 0;
 	if(state != *(net->state)) {
@@ -76,3 +123,29 @@ void sim_update_net(struct Net* net) {
 		}
 	}
 }
+
+////
+
+int sim_gate_get_port(struct Gate* gate, int port) {
+	return *(gate->port_net_state[port]);
+}
+void sim_gate_set_port(struct Gate* gate, int port, int state) {
+	if(state != gate->port_states[port]) {
+		*(gate->port_net_state_num[port]) += state - gate->port_states[port];
+		gate->port_states[port] = state;
+		
+		if(
+			( (*(gate->port_net_state_num[port]) > 0) != *(gate->port_net_state[port]) ) &&
+			( !*(gate->port_net_in_queue[port]) )
+		) {
+			sim_queue_net(gate->port_nets_c[port]);
+		}
+	}
+}
+
+int sim_gate_get_data(struct Gate* gate, int addr) {
+	return gate->data[addr];
+}
+void sim_gate_set_data(struct Gate* gate, int addr, int val) {
+	gate->data[addr] = val;
+}
diff --git a/sim/compiled_sim.dll b/sim/compiled_sim.dll
index 1df7ad1..0f5eb7f 100644
Binary files a/sim/compiled_sim.dll and b/sim/compiled_sim.dll differ
diff --git a/sim/compiled_sim_gates.c b/sim/compiled_sim_gates.c
new file mode 100644
index 0000000..f7a7213
--- /dev/null
+++ b/sim/compiled_sim_gates.c
@@ -0,0 +1,21 @@
+
+GATEFUNC(Diode) {
+	setport(2, getport(1));
+}
+GATEFUNC(Not) {
+	setport(2, !getport(1));
+}
+
+////
+
+enum GateFuncs {
+	GateFunc_None,
+	GateFunc_Diode,
+	GateFunc_Not,
+};
+
+GateFunc sim_logic_functions[] = {
+	0,
+	GATEFUNCID(Diode),
+	GATEFUNCID(Not),
+};
diff --git a/sim/gate.lua b/sim/gate.lua
index 56a8537..0d9e609 100644
--- a/sim/gate.lua
+++ b/sim/gate.lua
@@ -13,6 +13,9 @@ ffi.cdef [[
 		int** port_net_in_queue;
 		struct Net** port_nets_c;
 		int objref;
+		int logic_function;
+		int data_size;
+		int* data;
 	};
 ]]
 
@@ -34,6 +37,10 @@ function Gate.new(objref, definition)
 	}
 	gate.in_queue[0] = 0
 	
+	if definition.data_size_c > 0 then
+		gate.data_c = ffi.new("int["..(definition.data_size_c).."]")
+	end
+	
 	gate.c = ffi.new("struct Gate")
 	gate.c.in_queue = gate.in_queue
 	gate.c.port_states = gate.port_states
@@ -42,6 +49,9 @@ function Gate.new(objref, definition)
 	gate.c.port_net_in_queue = gate.port_net_in_queue
 	gate.c.port_nets_c = gate.port_nets_c
 	gate.c.objref = gate.objref
+	gate.c.logic_function = definition.logic_function_c
+	gate.c.data_size = definition.data_size_c
+	gate.c.data = gate.data_c
 	
 	return gate
 end
diff --git a/sim/gatedef.lua b/sim/gatedef.lua
index 9c4cf21..d654ce2 100644
--- a/sim/gatedef.lua
+++ b/sim/gatedef.lua
@@ -13,9 +13,6 @@ function GateDefinition.new(objref, name, description, init, logic, input, globa
 	input = collapseescape(input)
 	global = collapseescape(global)
 	description = collapseescape(description)
-	--code = collapseescape(code)
-	
-	--local compiled_size, compiled_code = Simulation.compile_code(nil, code)
 	
 	local def = {
 		objref = objref,
@@ -24,8 +21,8 @@ function GateDefinition.new(objref, name, description, init, logic, input, globa
 		ports = ports or {},
 		num_in_ports = 0,
 		num_out_ports = 0,
-		--compiled_program_code = compiled_code,
-		--compiled_program_size = compiled_size,
+		data_size_c = 0, -- todo
+		logic_function_c = 0, -- todo
 	}
 	
 	local initfunc = loadstring(tostring(init))
diff --git a/sim/network.lua b/sim/network.lua
index 2732921..ecfad58 100644
--- a/sim/network.lua
+++ b/sim/network.lua
@@ -73,7 +73,6 @@ function network_update()
 				local logic = data[i+5]
 				local input = data[i+6]
 				local global = data[i+7]
-				--local code = data[i+8]
 				local numports = tonumber(data[i+8])
 				local ports = {}
 				
diff --git a/sim/simulation.lua b/sim/simulation.lua
index 466003a..57f9b06 100644
--- a/sim/simulation.lua
+++ b/sim/simulation.lua
@@ -6,6 +6,7 @@ ffi.cdef [[
 	struct Net;
 	void sim_set_data(struct Net** net_queue, int* num_net_queue, struct Gate** gate_queue, int* num_gate_queue, int* current_tick, int queue_max);
 	void sim_update_nets();
+	void sim_update_gates();
 ]]
 local csim = ffi.load("compiled_sim.dll")
 
@@ -350,14 +351,6 @@ end
 
 -- Logic Critical
 function Simulation.ticklogic(sim)
-	-- Now implemented in C
-	--for i = 0, sim.num_groupqueue[0]-1 do
-	--	local cnet = sim.groupqueue[i]
-	--	Group.update_c(cnet, sim.current_tick[0])
-	--	cnet.in_queue[0] = 0
-	--	sim.groupqueue[i] = nil
-	--end
-	--sim.num_groupqueue[0] = 0
 	csim.sim_update_nets()
 	
 	if sim.tickqueue[sim.current_tick[0]] ~= nil then
@@ -369,6 +362,7 @@ function Simulation.ticklogic(sim)
 		sim.tickqueue[sim.current_tick[0]] = nil
 	end
 	
+	csim.sim_update_gates() -- handle any leftover gates, those without c logic functions
 	for i = 0, sim.num_gatequeue[0]-1 do
 		local cgate = sim.gatequeue[i]
 		local gate = Simulation.gate_from_cgate(sim, cgate)