From: Martin Schreiber <[EMAIL PROTECTED]> To: FPC developers' list <fpc- [EMAIL PROTECTED]> Subject: Re: [fpc-devel] Patch to speed up Uppercase/Lowercase functions Date sent: Sun, 12 Jun 2005 00:12:44 +0200
> Some more test results with PII 350MHz and > two additional implementations with lookup table: > > Kylix: > lowercase execution time: 336887 > lowercase 1 execution time: 380923 > lowercase 2 execution time: 375411 > lowercase 3 execution time: 369814 > lowercase 4 execution time: 320665 > lowercase 5 execution time: 300580 > lowercase 6 execution time: 219047 > lowercase 7 execution time: 356606 > lowercase 8 execution time: 249913 > lowercase 9 execution time: 252431 > > FPC -OG1 > lowercase execution time: 474871 > lowercase 1 execution time: 497440 > lowercase 2 execution time: 464547 > lowercase 3 execution time: 488088 > lowercase 4 execution time: 322630 > lowercase 5 execution time: 321486 > lowercase 6 execution time: 299599 > lowercase 7 execution time: 279863 > lowercase 8 execution time: 282185 > lowercase 9 execution time: 181006 What's the intended purpose of jz in the following fragment from lowercase9: mov ecx,[ebx-4] //length jz @l1 As far as I know, mov instruction doesn't set zero flag. Zero length is checked earlier in the code, though, so it doesn't matter for that - just the jz instruction seems to be useless there. Tomas _______________________________________________ fpc-devel maillist - fpc-devel@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-devel