ASCII to EBCDIC conversion and vice versa

i'm currently developing a utility to convert ASCII to EBCDIC (to support translation of some bits in a legacy system). really stuck over here.

some sample codes are appreciated. hope someone here can guide me (either conceptually or otherwise).
emily_myAsked:
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pagladasuConnect With a Mentor Commented:
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CEHJCommented:
Conceptually, what you need to do is build a conversion table. For EBCDIC to ASCII, you would read a character in EBCDIC, find the ASCII equivalent in the table and write that out to a stream or file. The process would be reversed for ASCII to EBCDIC.
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pagladasuCommented:
here is a link to a piece of code in C that might be useful to you.
http://www.room42.com/store/computer_center/c_translate.shtml
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CEHJCommented:
pagladasu, that certainly is a start, but there are some problems: in descending order of importance:

1. If performance is an issue, e.g. in decoding long streams, constantly iterating the array like this is inefficient. In this respect, the C code is better.
2. The Java code uses proprietary code.
3. It doesn't translate both ways, as claimed

emily_my, you only need (maybe) to concern yourself with the first point.
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