View difference between Paste ID: kXJ002ya and Dh7mfnJS

 local function shell()
   dofile("rom/programs/shell")
 end
 
 local function pop(tab,index)
   local size = #tab
   tab[index] = nil
   for i=index+1,size do
     tab[i-1] = tab[i]
     tab[i] = nil
   end
 end
 
 
 threads = {}
 threads.main = {}
 
 threads.add = function(func,name)
   name = name or "[Untitled]"
   local threadid = coroutine.create(func)
   local threadTable = {}
   threadTable[1] = name
   threadTable[2] = threadid
   threads.main[#threads.main+1] = threadTable
 end
 
 threads.pullEvent = function(event)
   local ret = {coroutine.yield(event)}
   return table.unpack(ret)
 end
 
 threads.stop = function()
   coroutine.yield("end")
 end
 
 threads.run = function()
   os.queueEvent("start")
   while true do
     local event = {os.pullEventRaw())
 	if threads[event[1]] then
-      local newEvent = coroutine.resume(v[2],table.unpack(event))
+
-      if not (newEvent == nil) then
+
-        if not threads[newEvent] then
+        if not newEvent then newEvent =  "main" end
-          threads[newEvent] = {}
+		if not (event[1] == newEvent) then
-        end
+			if not threads[newEvent] then
-        threads[newEvent][#threads[newEvent]+1] = v
+				threads[newEvent] = {}
-        pop(threads.main,i)
+			end
 			threads[newEvent][#threads[newEvent]+1] = v
 			if newEvent == "main" then v[3] = false end
-    if threads[event[1]] then
+			pop(threads[event[1]],i)
 		end
 	  end
-        if not newEvent then newEvent
+	end
     for i,v in pairs(threads.main) do
 	  if v[3] == nil then v[3] = true end
 	  if v[3] then
-threads.add(function() dofile("rom/programs/shell") end)
+		local newEvent = coroutine.resume(v[2],table.unpack(event))
 		if not (newEvent == nil) then
 			if not threads[newEvent] then
 				threads[newEvent] = {}
 			end
 			threads[newEvent][#threads[newEvent]+1] = v
 			pop(threads.main,i)
 		end
       end
 	  v[3] = true
     end
   end
 end
 
 
 
 os.pullEvent = threads.pullEvent
 threads.add(function() dofile("rom/programs/shell") end)
 threads.run()