The INC istruction

%section code .romtext
        entry _start    ; Entry point
_start:

        clr     r0
loop:
        inc	r0
	r2o	r0,o0
        j	loop

%endsection

%meta cpdef	cpu	romcode: code, ramsize:8
%meta ioatt     testio cp: cpu, index:0, type:output
%meta ioatt     testio cp: bm, index:0, type:output
%meta bmdef	global registersize:8