This content has not been validated; it was AI-generated following the x86-64 ISA Documentation generation process to maintain high quality. However, as no human has verified this data, errors may exist. If the accuracy of this data is critical, please consult the Intel SDM. The model used to generate this is gemma4:31b

VCVTW2PH

Converts a signed word integer value to a half-precision floating-point value.

The following table covers what the source and destinations can be.

DO NOT support LOCK

This instruction is available only in 64-bit mode. It requires the AVX-512 FP16 instruction set extension.

The operation is subject to the following details:

• The conversion follows the IEEE 754 standard for rounding.
• If the source value is too large to be represented as a half-precision float, the result is set to $\pm\infty$ and #O is signaled.
• Precision loss during conversion will signal #P.