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Home » Developing U++ » U++ Developers corner » SSE2 and SVO optimization (Painter, memcpy....)
Re: BufferPainter::Clear() optimization [message #53979 is a reply to message #53977] Tue, 19 May 2020 08:59 Go to previous messageGo to previous message
Tom1
Messages: 1303
Registered: March 2007
Ultimate Contributor
Hi,

Fill6 fails integrity check due to a small indexing glitch here:
	if(len & 8) {
		Set4(0);
		Set4(8); // << Should be 4
		t += 8;
	}


However, Fill3T is still faster below 64 and mostly on par above that on my i7.

And thanks! I do indeed enjoy the final alignment trick! Smile Very clever!

Best regards,

Tom
 
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