doOp v (LExternal so) [] | so == sUN "prim__stdout" = v ++ "MKPTR(vm, stdout)"
doOp v (LExternal so) [] | so == sUN "prim__stdout" = v ++ "MKPTR(vm, stdout)"
doOp v (LExternal so) [] | so == sUN "prim__stdout" = v ++ "MKPTR(vm, stdout)"