if args_len > 1 and args_len < 4:
# Must provide atleast input file
input_file = args[1]
# Is file valid
if path.exists(input_file):
# Create instance
ls8 = CPU()
# Initialize keyboard
keyboard = Keyboard(ls8)
# Load program
ls8.load(input_file)
# Connect keyboard (starts polling thread)
keyboard.connect()
# Run without debug trace mode
if args_len == 2:
ls8.run()
# Run with debug trace mode
elif args_len == 3:
if args[2] == "-d":
ls8.run(trace_cycle=True)
else:
print_usage("Invalid flag set")
else:
print_usage("input_file not found")
else:
