x86 Instruction Set Reference

Performs an SIMD computation of the square roots of the two packed double-precision floatingpoint values in the source operand (second operand) stores the packed double-precision floatingpoint results in the destination operand. The source operand can be an XMM register or a 128- bit memory location. The destination operand is an XMM register. See Figure 11-3 in the IA-32 Intel Architecture Software Developer's Manual, Volume 1 for an illustration of an SIMD double-precision floating-point operation.

Destination[0..63] = SquareRoot(Source[0..63]);
Destination[64..127] = SquareRoot(Source[64..127]);