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Instruction simd
(Page:4)
PSADBW (Sum of absolute differences)
PSHUFW (Shuffle packed integer word in MMX technology register)
SFENCE (Store Fence)
SHUFPS (Shuffle packed single-precision floating-point)
SQRTPS (Square root packed single-precision floating-point)
SQRTSS (Square root scalar single-precision floating-point)
SUBPS (Subtract packed single-precision floating-point)
SUBSS (Subtract scalar single-precision floating-point)
UNPCKHPS (Unpacked high packed single-precision floating-point)
UNPCKLPS (Unpacked low packed single-precision floating-point)
XORPS (Bit-wise packed logical XOR for single-precision floating-point)
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Instruction simd - PSADBW (Sum of absolute differences)

instruction computes the absolute difference for each pair of sub-operand byte sources and then accumulates the 8 differences into a single 16-bit result.
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