Introduction to ARM

Architecture 6

v6
Mixed endian data handling: SETEND, REV, REV16, REVSH.
60+ new SIMD instructions: SMUSD, SMUADX, USAD8, USADA8.
Unaligned data handling.
New multiprocessing instructions: LDREX, STREX.
v6T2
Thumb-2.

Remarks

Mandates the “TEJ” features for this and all subsequent architectures.

USADxx: Sum of absolute differences.

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