This posting may win some sort of award for ambiguity. What do "first" and "last" mean? Are the "first" the most significant, and the "last" the least significant? If, as the OP added, "it's 8 bits", which 8 bits? The most/least significant? If you strip away leading 0's, as the OP did, is it the 8 bits whose most significant bit is a 1 (which, of course, may not yield 8 bits)? There are many reasonable suggestions here, just as there are many reasonable interpretations of what the heck the OP wants. It doesn't help that the OP offered several suggestions on what the result should be.

In reply to Re: first 5 bits and last 3 bits by jpl
in thread first 5 bits and last 3 bits by pashanoid

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.