So, you&#x27;re saying that the mythical HCF instruction[0] was somewhat real?<p>[0] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Halt_and_Catch_Fire" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Halt_and_Catch_Fire</a>