(SOLVED) 41CL - DOUBLE HEPAX ACCESS and MMU CONFIG

[rprosperi]

(08-23-2019 08:52 PM)Monte Dalrymple Wrote:  

(08-23-2019 08:38 PM)rprosperi Wrote:  So, I have to ask: how can HEPAX create and use a custom OpCode, since the 41's CPU is fixed; i.e. how is the CPU's vocabulary extended?

Any opcode that the CPU doesn't recognized is executed as a NOP as far as the CPU is concerned.

That makes sense (though I did not know that, so thx) but how does a non-std OpCode, which is treated as NOP, let HEPAX do things like remap portions of code? Is it simply a marker for other code to recognize and then act upon?