Re: ROL and ROR for RPN

"Kiss Gabor (Bitman)" <[email protected]> Mon, 28 Apr 2014 09:05:51 +0200 (CEST)

Newsgroups	gmane.comp.db.rrdtool.devel
Message-ID	<[email protected]>

> your function always affects 3 values ... would there be any gain
> in makeing this call more generic ?
> 
> a,b,c,d,x,y,ROL rotate the last x values on the stack by y steps to
> the left. and maybe have -y role to the right?

IMHO it would be useful to have a look at Postcript
stack manipulation operators.
http://www.ugrad.math.ubc.ca/Flat/stack-ref.html

Gabor