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Long Hex ASCII string to decimal ASCII


Using the C51 tools, I am trying to convert a long Hex number, entered as an ASCII string, to its decimal equivalent.
For example:
the string could be:
"ABCDEF1234565"
And I would need to convert to the string:
"188900967593046"

The problem I have found is that since there does not seem to be a true 'double' variable type, I cannot do a direct conversion of the number. Which would consist of converting the ASCII hex to a variable, and then printing it out as decimal.

I have tried several methods, but cannot get past needing variable storage larger than 32bits.

Any suggestions on how to achieve this would be greatly appreciated...

Thanks!

David Marten

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