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(nasm.info)Section B.4.268

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B.4.268. `RCPPS': Packed Single-Precision FP Reciprocal
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     RCPPS xmm1,xmm2/m128          ; 0F 53 /r        [KATMAI,SSE]

   `RCPPS' returns an approximation of the reciprocal of the packed
single-precision FP values from xmm2/m128. The maximum error for this
approximation is: |Error| <= 1.5 x 2^-12