DOS ain't dead

MMX moves (Developers)

posted by Japheth , Germany (South), 18.02.2009, 09:08

> Here a faster version of {block A}
>
> shr ecx,3
> @mmxloop:
> movq mm0,ds:[esi];
> dec ecx
> Lea esi,[esi+8]
> movq es:[edi],mm0
> lea edi,[edi+8];
> jnz @mmxloop

That's probably true, but in reality the effect will be somewhere between "zero" and "virtually zero".

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MS-DOS forever!

Complete thread:

• MMX moves - Laaca, 16.02.2009, 21:20 (Developers)
  • MMX moves - rr, 16.02.2009, 21:34
  • MMX moves - Japheth, 16.02.2009, 22:05
    • MMX moves - rr, 16.02.2009, 22:11
      • MMX moves - Japheth, 17.02.2009, 13:52
        • MMX moves - Laaca, 17.02.2009, 16:29
          • MMX moves - Japheth, 17.02.2009, 17:16
            • MMX moves - Laaca, 17.02.2009, 18:56
      • MMX moves - marcov, 18.02.2009, 09:55
  • MMX moves - FFK, 16.02.2009, 23:04
  • MMX moves - Rugxulo, 17.02.2009, 00:54
  • MMX moves - FFK, 17.02.2009, 21:37
    • MMX moves - Rugxulo, 18.02.2009, 00:48
    • MMX moves - Japheth, 18.02.2009, 09:08
      • MMX moves - FFK, 18.02.2009, 09:44