Ok, that was my downfall -- the chr() to turn a 16-bit int (under Win32 Perl) into a 'real' 8-bit byte.

I did initially look at my C books as well as my Perl books to come up with the idea of using a bitfield in my application anyway. Just that I wasn't sure how to deal with it other than through the substr() approach (I've not really used vec() much, if at all, really).

Still, I knew there had to be a simpler way...

Many thanks for all your help, folks... 'tis greatly appreciated.

In reply to Re^2: Decoding Mapped Bitfields by ozboomer
in thread Decoding Mapped Bitfields by ozboomer

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.