there is hope for tiny code!

Ture enough, although presumably it worked often enough for Epson to think it useful to put in the manuals. But I remmber with affection 'Control-F J103' :-) An explanation : The first CP/M machine I used was a thing called an RML 380Z. It had a very nice software 'front panel' (machine code monitor, memory editor, etc) in ROM that you could enter by typing Control-F at just about any point. The BASIC on that machine (presumably a Microsoft derrivative) had a cold start entry point (cleared your program, etc) at 100h (not suprisingly) but also a warm-start (preserved the program) at 103 (presumable locations 100,101,102 contained a JP instruction, but I don't really remember). So, provided the TPA had not been clobbered, yuu could get back to BASIC by doing Control F (to enter the monitor) followed by J103 (to jump to the warm start point). -tony