This one quote was like biting into a madeleine and being transported into a distant past: "The power of being able to re-program ANY and ALL of the registers

This one quote was like biting into a madeleine and being transported into a distant past: "The power of being able to re-program ANY and ALL of the registers of the CPU with one single instruction opens up a whole new world of possibilities. Including, but not limited to:... installing most of the guts of custom TSR's".