The best way to describe it would be to say that I store the alphabet as a singly linked list, with a few pointers to "well used" parts so that I don't always start at the beginning. Pointers to "A" (the song), "L" (el-em-en-o-pee), "T" (I guess because of the hard sound), and "X" (xyz).

When going backwards, I did a section, went back to my closest pointer, went forward until I found my last backwards, keeping as much as I could in a small short term memory space (say an array of 5 to 7 elements).

As a side note, doing the alphabet forward was not traversing each element as I needed it, but a rather efficient block load which pulled in a "mouthful" of elements, spitting them out autonomously so that there were no I/O blocking.

Damn I feel geeky. 8)

=Blue
...you might be eaten by a grue...

In reply to RE: RE: More About Memory -- case study by Blue
in thread More About Memory -- case study by japhy

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