#!/usr/bin/env python3
import sys

from mnems import mnems

def opws(kw):
	for k in range(16):
		mnems.append(kw + str(k))
opws("mark") # who is mark
opws("loc")
opws("ret")
opws("lit")

def dpc(addr):
	print(f"{addr:04x} | ",end='')

def uuu(b):
	u=bin(b)[2:].zfill(16)
	for x in range(0,len(u),4):
		yield u[x:x+4]

def fbin(b):
	return '_'.join(uuu(b))

pc = 0

MASK_CALL = 0b1000_0000_0000_0000
MASK_LIT  = 0b0110_0000_0000_0000
MASK_JMP  = 0b0100_0000_0000_0000
def maskeq(x, m):
	# must be called in the right order
	return (x&m)==m

def main():
	while True:
		global pc
		bys = sys.stdin.buffer.read(2)
		if len(bys) < 2: break
		word = int.from_bytes(bys, 'big')
		dpc(pc)
		dpc(word)
		if maskeq(word, MASK_CALL):
			disasm_call(word)
		elif maskeq(word, MASK_LIT):
			disasm_lit(word)
		elif maskeq(word, MASK_JMP):
			disasm_br(word, pc)
		else:
			disasm_i(word)
		pc += 2

def disasm_call(word):
	addr = word & 0b0111_1111_1111_1111
	addr = addr << 1
	print(f"c {addr:04x}")
def disasm_lit(word):
	val = word & 0b0001_1111_1111_1111
	print(f"l {val:04x}")
def disasm_br(word, pc):
	is_cond = (word & 0b0001_0000_0000_0000) != 0
	char = 'b' if is_cond else 'j'
	rel = (word & 0b0000_1111_1111_1111) - 2048
	target = rel + pc
	print(f"{char} {rel:+05x} ={target:04x}")
def disasm_i(word):
	opc1 = (word&0b0011_1111_1000_0000)>>7
	opc2 = (word&0b0000_0000_0111_1111)
	mnem1 = mnems[opc1]
	mnem2 = mnems[opc2]
	if mnem2 == "nop": mnem2 = ""
	print(f"i {mnem1} {mnem2}")


if __name__ == "__main__":
	main()