Jump to content

Photo

So apparently there is an opcode to set old computers on fire...


  • Please log in to reply
2 replies to this topic

#1 stackcollision

stackcollision

    Byte

  • Members
  • 34 posts

Posted 21 September 2012 - 09:04 PM

I learned the other day that there is an opcode in the instruction sets of several old processors named HCF. This stands for "Halt, Catch Fire".

It locks the processor from accepting any other instructions, and beginnings toggling the bus lines as rapidly as possible. In some configurations, it's been known to actually burn the lines out and/or set fire to the machine. The only way to stop it is a hard-reboot.

I have no idea why this would ever be included in an instruction set, but it was originally undocumented and later discovered. Thought you guys would find it interesting.

#2 SpleenBeGone

SpleenBeGone

    Deer Leader of the Goriest Revolution

  • Administrators
  • 14,951 posts
  • LocationHouston

Posted 21 September 2012 - 09:31 PM

That sounds pretty interesting. >.>
nmjUGDL.jpg

#3 Guest_ElatedOwl_*

Guest_ElatedOwl_*
  • Guests

Posted 21 September 2012 - 10:23 PM

Good god. o-o; What line was this?