Ok Done it now including the decimal codes and I'd previously seen both hex
and hax so...this should keep me busy for a while :).

(in "/home/me/test_fl.txt"
   (until (eof)
      (setq B (rd 1))
      (prinl B  )
      (if (= (key) "x") (quit))))

On 14 February 2017 at 15:50, dean <deangwillia...@gmail.com> wrote:

> This is the closest I've got i.e. the first byte seems to go into B now
> but then I'm in an endless loop with B's value stuck with that first byte

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