Conversion to hexadecimal character

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hi guys ,
quisera convert hexadecimal comes in ascii , ie block in series sees aparerecer monitor hexadecimal code , displayed name.
i'm trying find way not know if there function realize such instruction.

probably best show have far, can propose best approach based on context / data exists.

e.g. if in char[] array, break each byte apart high , low nybbles - asciiize it...!


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