Tom Marchant wrote:
I spent a *lot* of time in the microfiche, reading the CVOL code. Whatever the reason was for concatenating the generation data sets in reverse order, I don't think it was for performance.
The names were stored in the catalog in inverse order (the "nnnn" portion was complemented; i.e. C'0123' became X'0F0E0D0C'). This placed the entries with latest generation first, and explains why it was easiest to retrieve them in that sequence.
Gerhard Postpischil Bradford, VT ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
