gets(s, z) {
  i;

  while(1) {
    if (i >= z-1)
      break;

    c = getc();
    if (c < 0 || c == '\n')
      break;

    s[i++] = c;
  }

  s[i] = 0;

  return s;
}

getc() {
  c;

  asm("in {c}");

  return c;
}

putc(c) {
  asm("out {c}");
}

putd(n) {
  asm("mov {n} Z");
}

puts(s) {
  for (i=0;s[i];i++)
    putc(s[i]);
}

nl() {
  putc('\n');
}