Your data string is:

        chr    '0' '1' '1' '4' '2' '0' '0'
        ord    48  49  49  52  50  48  48
    intel word lo  lh  hl  hi  lo  lh  hl  ??
Now the A7 template unpacks this string as its ascii characters, just as it was constructed. On the ia-32 architecture native int and native long are both customarily 4 bytes, so you expect i,l to give the same results, as well as I,L, the unsigned variants. If the number is less than 2**31, unsigned, both signed and unsigned give the same results.

Now unpack's repeat count templates give up if the data string is too short to provide all the fields. '0114200' only has enough data for one native int, so that's all you get: 

perl -e'print 52*2**24 + 49*2**16 + 49*2**8 + 48,$/;"
875639088

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After Compline,
Zaxo

In reply to Re: UNPACK help plse by Zaxo
in thread UNPACK help plse by dpenny

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