End .asm file with infinite loop

gistfile1.rb

# Checking if the command type is a label in my driver loop
end_condition = true
if index != instruction_array.length-1
   end_condition = false
end
code_writer.write_label(end_condition, arg_1)

# At the end of my driver loop
# If the last instruction isn't a label, an infinite loop is still made
if index == instruction_array.length-1 && command_type != :C_LABEL
   code_writer.write_label()
end

# In my write_label method
@asm_file << "(" + arg_1 + ")\n"             #arg_1 is given a default value
if end_condition                             #end_condition is given a default true
   @asm_file << "@" + arg_1 + "\n0;JMP\n"
end