On Nov 3, 2024, at 4:59 PM, Mychaela Falconia
<falcon(a)freecalypso.org> wrote:
 Paul Koning wrote:
  1. Show a one-word PDP-11 program that writes all
of memory, in reverse order. 
 MOV -(PC),-(PC)
 I remember this one from late-Soviet/early-Russian BK0010 hacker clubs...
 BK0010 was a "home computer" built around 1801VM1 microprocessor, a
 Soviet implementation of basic PDP-11 instruction set.  No idea exactly
 which DEC model it corresponds to, if any.
  2. Show a one-word PDP-11 program that clears all
of memory,
 in forward order, halting on completion. 
 This one I am struggling with - it's been too many decades since I did
 any PDP-11 assembly...