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Subject: Re: A random thought about bitboards

Author: Tony Werten

Date: 10:35:48 10/24/01

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On October 24, 2001 at 09:40:15, Robert Hyatt wrote:

>On October 24, 2001 at 05:38:21, Ricardo Gibert wrote:
>
>>I originally posted this on CTF by mistake. On Tina's suggestion, I've reposted
>>it here.
>>
>>
>>I know very little about bit boards, but I had random thought about what you
>>could do with a cpu that has 128 bit words. Does it make any sense to use 128
>>bits instead of 64 bits in a bitboard approach that is analogous to 0x88? Would
>>rotated bitboards still be necessary?
>>
>>Okay, I know these are random thoughts indeed. So what advantage if any would
>>128 bits have for bitboards?
>
>Rotated bitboards would still be useful.  But now it would take one operation
>to update two of them at once.  IE normal and rotated 90 in one 128-bit
>word, the two diagonal rotations in another 128 bit word.  Would work fine.
>
>Although 128 bit microprocessors are probably 20 years away or longer...

Why 20 ? The amount of bits seem to have doubled every 10 years until now.

Tony



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