🚀 go-pugleaf

To answer the question from Shaun Case about self modifying code :

One way (the only, to my knowledge) to test wether you have a '88 or a '86
is to modify code five bytes after the program counter. If the processor 
executes the modified code, it is a '88 (the modified code has not been
fetched yet) if the original code (ie. before modification) is executed,
you have a '86 (code already in prefetch queue before modification).

The same test, using an adress slightly further down, can be used to
distinguish the '88-'86 family from the later processors.

Anyway, self-modifying code has always been considered very dangerous and
bad practice. It is even more so with these prefetching processors.

Greetings from Brittany, France !

Finn Jorgensen. 
IFSIC, Universite de RENNES I
Campus de Beaulieu
35042 RENNES CEDEX
FRANCE