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(nasm.info)Section B.4.10

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B.4.10. `ANDNPS': Bitwise Logical AND NOT of Packed Single-Precision FP Values
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     ANDNPS xmm1,xmm2/mem128       ; 0F 55 /r        [KATMAI,SSE]

   `ANDNPS' inverts the bits of the four single-precision floating-point
values in the destination register, and then performs a logical AND
between the four single-precision floating-point values in the source
operand and the temporary inverted result, storing the result in the
destination register.

        dst[0-31]   := src[0-31]   AND NOT dst[0-31],
        dst[32-63]  := src[32-63]  AND NOT dst[32-63],
        dst[64-95]  := src[64-95]  AND NOT dst[64-95],
        dst[96-127] := src[96-127] AND NOT dst[96-127].

   The destination is an `XMM' register. The source operand can be
either an `XMM' register or a 128-bit memory location.