Author: Roy Eassa
Date: 10:03:19 01/05/01
Go up one level in this thread
On January 05, 2001 at 12:11:05, Ian Osgood wrote: >On January 04, 2001 at 12:07:27, Christophe Theron wrote: > >>You can allocate as much as you want, but in small chunks (max 64Kb). For hash >>table management, having to deal with a large hash table split into small chunks >>is not really a problem. >> >> >> >> Christophe > >Interesting... is this heap allocation (SDRAM) or storage allocation (Flash)? I >was under the impression that current Palm devices had only small amounts of RAM >for the running program storage and heap (<= 1MB) and that the advertised 8MB >storage of a Palm device was all Flash memory. Flash memory is unsuitable for >transposition tables because 1) it is slow and power hungry to write to, 2) you >have to write (and maybe read) large blocks of data at a time, and 3) Flash >memory wears out after too much writing (maybe a million writes the the same >address?). The Handspring Visor I have advertises (if I remember correctly) that it doesn't use flash memory at all. It has 8 MB total and runs at 33 MHz, so I'd think a pretty decent chess program could be written for it (or Chess Genius could support moderate sized hash tables).
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