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
KMOVD
Moves a doubleword immediate value into a 64-bit register.
The following table covers the supported source and destinations.
| source | destination(s) |
|---|---|
| imm | r64 |
| reg | #I |
| memory | #I |
DO NOT support LOCK
This instruction SHALL only be used in 64-bit mode. It is NOT supported in compatibility mode.
The immediate value is treated as a signed 32-bit integer and is sign-extended to 64 bits before being stored in the destination register. Failure to account for sign extension when moving values larger than $2^{31}-1$ MAY result in unexpected values in the upper 32 bits of the r64 register.