#! /usr/bin/env python

import sys
out = sys.stdout.write

IO = '\t\n'
STACK = ' '
ARITHMETIC = '\t '
HEAP = '\t\t'
FLOW = '\n'

def number(num):
	if num < 0:
		s = ['\t']
	else:
		s = [' ']
	s += [' ' if x == '0' else '\t' for x in bin(num)[2:]]
	return ''.join(s+['\n'])

def compi(line):
	if line.startswith('--'):
		return
	if '-v' in sys.argv:
		out(line.replace(' ', ''.replace('\t', '')))

	if line == 'READ CHAR':
		# Read character and place it to location given by the top of the stack
		out(IO + '\t ')
	elif line == 'READ NUMBER':
		# Read a number and place it in the location given by the top of the stack
		out(IO + '\t\t')
	elif line == 'OUTPUT CHAR':
		# Output the character at the top of the stack
		out(IO + '  ')
	elif line == 'OUTPUT NUMBER':
		# Output the number at the top of the stack
		out(IO + ' \t')

	elif line.startswith('PUSH '):
		num = int(line[5:])
		out(STACK + ' ' + number(num))
	elif line == 'DUPLICATE':
		out(STACK + '\n ')
	elif line == 'SWAP':
		out(STACK + '\n\t')
	elif line == 'DISCARD':
		out(STACK + '\n\n')

	elif line == 'ADD':
		out(ARITHMETIC + '  ')
	elif line == 'SUB':
		out(ARITHMETIC + ' \t')
	elif line == 'MUL':
		out(ARITHMETIC + ' \n')
	elif line == 'IDIV':
		out(ARITHMETIC + '\t ')
	elif line == 'MOD':
		out(ARITHMETIC + '\t\t')

	elif line == 'STORE':
		out (HEAP + ' ')
	elif line == 'RETRIEVE':
		out(HEAP + '\t')

	elif line.startswith('MARK '):
		out(FLOW + '  ' + number(int(line[5:])))
	elif line.startswith('CALL '):
		out(FLOW + ' \t' + number(int(line[5:])))
	elif line.startswith('JMP '):
		out(FLOW + ' \n' + number(int(line[4:])))
	elif line.startswith('JZ '):
		out(FLOW + '\t ' + number(int(line[3:])))
	elif line.startswith('JN '):
		out(FLOW + '\t\t' + number(int(line[3:])))
	elif line == 'RETURN':
		out(FLOW + '\t\n')
	elif line == 'END':
		out(FLOW + '\n\n')

if __name__ == '__main__':
	if len(sys.argv) < 2:
		print 'Usage: %s <filename> [-v]' % sys.argv[0]
		raise SystemExit
	with open(sys.argv[1], 'r') as f:
		for line in f:
			compi(line.strip())