Ed, >> it will be fun to be able to use it someday (if I live that long...)
I thought the very same - but it is easier for me-It is an excellent instruction when you need to extent an object (of a PDF-file) in the middle. Had to use a work-area with a length of the rest of the object-
But hey- wait a second! Why is there that silly(IMHO) restriction of only the last byte of R0 can be the length(=256)?
Martin