Author: Sune Fischer
Date: 10:26:15 10/04/02
Go up one level in this thread
On October 04, 2002 at 11:24:40, Vincent Diepeveen wrote:
>On October 03, 2002 at 14:50:23, Bo Persson wrote:
>
>>On October 01, 2002 at 08:19:31, Vincent Diepeveen wrote:
>>
>>> you need loads of inline assembly for nearly any architecture
>>>to keep going and you need a 64 bits processor to not be 2 times slower
>>>than a non-bitboarder.
>>>
>>
>>Do you want to see how much asm I need for a bitboard program?
>
>i'm talking about chess at 32 bits processors, not about
>some checker program which has 32 squares :)
>
>anyway how many moves a second can you generate after
>1.e4,e5 2.d4,d5 :)
A more interesting question would perhaps be how many captures
he could generate...
-S.
>>Here it is, in its entirety:
>>
>> // Assembly helpers
>>
>>// warning C4035: 'BSR' : no return value
>>#pragma warning(disable : 4035)
>>
>> inline unsigned BSR(unsigned Bits)
>> { __asm bsr eax,[Bits] }
>>
>> inline unsigned BSF(unsigned Bits)
>> { __asm bsf eax,[Bits] }
>>
>>#pragma warning(default : 4035)
>>
>>
>>
>>That's it!
>>
>>
>>Bo Persson
>>bop2@telia.com
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