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MOVHPD
Moves the high double-precision floating-point value from the source operand to the high double-precision floating-point value of the destination operand.
The following table covers what the source and destinations can be.
| source | destination(s) |
|---|---|
| m8 | #I |
| m16 | #I |
| m32 | #I |
| m64 | #I |
| m128 | xmm |
| xmm | xmm |
| imm | #I |
DO NOT support LOCK
This instruction SHALL only be used in 64-bit mode or 32-bit mode. It is not supported in 16-bit mode.
The destination operand MUST be an XMM register; memory destinations are NOT supported. To avoid unexpected behavior or faults, the memory source operand MUST be aligned on a 16-byte boundary unless the processor supports unaligned memory accesses (SSE2). Failure to align the memory source MAY result in a general-protection exception.