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VEXTRACTF32x4
Extracts four single-precision floating-point values from a 128-bit lane of a YMM register and stores them in a XMM register.
The following table covers the supported source and destinations.
| source | destination(s) |
|---|---|
| reg (ymm) | reg (xmm) |
| imm (u8) | #I |
| mN | #I |
DO NOT support LOCK
The instruction requires AVX support. It is available in both 64-bit and compatibility mode. The immediate operand MUST be either 0 or 1, specifying which 128-bit half of the ymm register to extract; any other value is an invalid operation.
The destination XMM register is completely overwritten by the extracted 128-bit lane. Users MUST ensure the source YMM register is properly aligned if it was loaded from memory prior to this operation to avoid performance penalties, although the instruction itself operates only on registers.