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[.Net only] - fast bit operations
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Balint Pfliegel



Joined: 16 Mar 2012
Posts: 69
PostPost subject: Re: [.Net only] - fast bit operations    Posted: Fri Jun 22, 2012 7:20 pm Reply to topic Reply with quote
I retested UInt64 bb = b & (0UL - b); instead of the old code and performs somewhat better. I have a very minimal movegen code and now it's visible - did not detect it when I tested this change on Portfish earlier. But is very logical, one op less.

Thanks anyway! Balint
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Subject Author Date/Time
[.Net only] - fast bit operations Balint Pfliegel Mon Jun 18, 2012 9:59 pm
      Re: [.Net only] - fast bit operations Balint Pfliegel Mon Jun 18, 2012 10:18 pm
            Re: [.Net only] - fast bit operations Balint Pfliegel Thu Jun 21, 2012 10:35 pm
                  Re: [.Net only] - fast bit operations Gerd Isenberg Fri Jun 22, 2012 6:40 am
                        Re: [.Net only] - fast bit operations Balint Pfliegel Fri Jun 22, 2012 6:47 am
                              Re: [.Net only] - fast bit operations Zong Li Fri Jun 22, 2012 5:09 pm
                                    Re: [.Net only] - fast bit operations Balint Pfliegel Fri Jun 22, 2012 5:49 pm
                                          Re: [.Net only] - fast bit operations Balint Pfliegel Fri Jun 22, 2012 7:20 pm
                                                Re: [.Net only] - fast bit operations Zong Li Sat Jun 23, 2012 4:47 pm
                                                      Re: [.Net only] - fast bit operations Balint Pfliegel Mon Jun 25, 2012 5:40 am
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