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

ENQCMDS

Enqueues a Cuckoo Monitor Start (CMS) descriptor into the specified queue.

The table after the description covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available when the processor is operating in 64-bit mode. It SHALL NOT be used in compatibility mode.

The destination operand MUST be a valid memory location for a queue that supports the Cuckoo Monitor Start operation. Attempting to execute this instruction on an unsupported memory region MAY result in a general-protection exception (#GP). The queue must be properly initialized according to the architectural specifications for Cuckoo Monitors to avoid undefined behavior.