tArgs = {...}

insd = {[4095] = "ppc",
[4094] = "swp",
[4093] = "read",
[4092] = "write",
[4091] = "add",
[4090] = "sub",
[4089] = "jmp",
[4088] = "sez"}
insc = {}
insc.ppc = 4095
insc.swp = 4094
insc.read = 4093
insc.write = 4092
insc.add = 4091
insc.sub = 4090
insc.jmp = 4089
insc.sez = 4088

local f=io.open("ins.def","rb")
local c = "";
if f then
 c=f:read("*a")
 f:close()
 insd,insc = {}, {}
 for l in c:gmatch("(.+)\n") do
  lt = {}
  for w in l:gmatch("%S+") do table.insert(lt,w) end
  insc[lt[2]] = tonumber(lt[1])
  insd[tonumber(lt[1])] = lt[2]
 end
end

if not tArgs[2] then
 error("requires a file argument and a compile/decompile flag")
end
f = io.open(tArgs[2],"rb")
if not f then error("file inaccessable") end
c = f:read("*a")
f:close()

for w in c:gmatch("%S+") do
 if tArgs[1] == "-c" then
  if insc[w] ~= nil then
   print(insc[w])
  else
   print(w)
  end
 elseif tArgs[1] == "-d" then
  if insd[tonumber(w)] ~= nil then
   print(insd[tonumber(w)])
  else
   print(w)
  end
 end
end