On 11/3/24 14:48, Mike Katz via cctalk wrote:
  Though not Halt and Catch Fire you guys are forgetting
the joy of self
 modifying code. 
Indeed, this was the *only* way to do things on early first- and
second-generation systems.  Even the lowly 1620 CADET, without the
optional indirect addressing feature mandated use of code modification.
--Chuck