History of … one CPU instructions: Part 1. LDDQU/movdqu explained

Once upon the time and back to 2000, Intel brought to market NetBurst microarchitecture ( )  with Pentium 4 CPUs .
At 2004, with its Prescott revision/core and as a part of SSE3 instruction set, we’ve got LDDQU instruction,

Where the main focus area used to be - Video Encoding:
The most compute-intensive part of a video encoder is usually Motion Estimation (ME) where blocks from the
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