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https://issues.apache.org/jira/browse/DAFFODIL-2119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Olabusayo Kilo reassigned DAFFODIL-2119:
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Assignee: Olabusayo Kilo
> Debugger RTL data dumps are nibbles-reversed
> --------------------------------------------
>
> Key: DAFFODIL-2119
> URL: https://issues.apache.org/jira/browse/DAFFODIL-2119
> Project: Daffodil
> Issue Type: Bug
> Components: Debugger
> Affects Versions: 2.3.0
> Reporter: Michael Beckerle
> Assignee: Olabusayo Kilo
> Priority: Major
>
> This is what the debugger outputs for parsing one of the tests for
> mil-std-2045, test2045msghdr1.
> It detects that this is bitOrder leastSignificantBitFirst data and so
> presents the data Right-to-Left order, which is good.
> {code:java}
> fedcba9876543210 ffee ddcc bbaa 9988 7766 5544 3322 1100 87654321
> cø€␀␀␀wü␚’gU€␀gä 368f 0800 0000 77cf a129 7655 0800 764e :00000000
> ␀␀␁›¶þ␐HD 00 0010 b96b ef01 8444 :00000010{code}
>
> However, this is gibberish, as the bytes of this data (left-to-right) are E4
> 67 00 80 55....
> So presented Right-to-left the values in the bytes shouldn't change. But if
> you look at the data dump above, the bytes are 4e 76 00 08 55.... which means
> the nibbles of each byte have been swapped.
> That's just plain wrong. Bit order doesn't change the numeric value of any
> byte.
> These displays are useless.
>
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