| Parameter | Description |
|---|---|
| a | Vector a |
int Integer
Set each bit of mask dst based on the most significant bit of the corresponding packed double-precision (64-bit) floating-point element in a.
____ VMOVMSKPD r32, ymm2 Extracts the sign bits from the packed double-precision floating-point values in the source operand, formats them into a 4-bit mask, and stores the mask in the destination