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
CVTPS2PD
Converts the lowest two single-precision floating-point values from a packed source to two double-precision floating-point values in a destination.
The following table covers what the source and destinations can be:
| source | destination(s) |
|---|---|
| xmm | xmm |
| m128 | xmm |
DO NOT support LOCK
This instruction is available in 64-bit mode and 32-bit mode. It requires the SSE3 instruction set extension.
The instruction only operates on the lowest 64 bits of the destination xmm register; the upper bits of the destination register are undefined. Precision and rounding are controlled by the MXCSR register. If the conversion results in a value that cannot be represented in the destination format, it SHALL trigger #O. If the result is inexact, it SHALL trigger #P.