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VRSQRTSH

Computes the approximate reciprocal square root of a packed signed short floating-point value.

The table after the description covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available when the AVX-512 foundation (F) is supported. It operates on packed signed short (16-bit) floating-point numbers.

The result of the approximation is an estimate; users SHALL use the VRSQRTSH instruction only for initial guesses in iterative refinement methods (such as Newton-Raphson) if higher precision is required. The precision of the result is subject to the current rounding mode in the MXCSR register, and may trigger a #P exception.