The way to copy memory on a Cortex-A9

Word by Word memory copy

Load-Multiple memory copy

NEON memory copy

Word by Word memory copy with preload

Load-Multiple memory copy with preload

NEON memory copy with preload


NEONCopyPLD
   PLD [r1, #0xC0]
   VLDM r1!,{d0-d7}
   VSTM r0!,{d0-d7}
   SUBS r2,r2,#0x40 
   BGE NEONCopyPLD


Mixed ARM and NEON memory copy with preload

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[YouTube] Aalto Talk with Linus Torvalds

Linus really doesn't like nVidia.

 

Cisco 1941 Series Integrated Services Routers

Cisco 1941 Series Integrated Services Routers