Is there an existing gem or script that converts comp-3/packed decimal format to number?

I'm starting a new adventure to convert COBOL program to a Ruby program, I have to convert a a comp-3/packed decimal format to number.

From another pre开发者_运维技巧vious post, there is code that would convert from a number to comp-3, but not the inverse.

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COMP-3 is typically an IBM only method of packed decimal. I have had issues in the past converting the packed decimal on IBM to other formats. I would normally have to pad my destination size by a byte to get the sizes to match up.

I'm not aware of any COMP conversion programs or utilities that would help you on this.