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
VPMOVSQB
Moves a quadword from the source operand to the destination operand.
The following table covers what the source and destinations can be.
| source | destination(s) |
|---|---|
| xmm | xmm |
| m8 | xmm |
| #I | imm |
DO NOT support LOCK
This instruction is available only in 64-bit mode. It is not supported in compatibility mode.
The instruction requires the destination to be an XMM register. When the source is a memory operand (m8), it is treated as a quadword access to the address specified. Failure to align memory operands according to the architectural requirements may result in performance degradation or alignment check exceptions depending on the CR0.AMD setting.