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
VINSERTI64x4
Inserts four 64-bit integer values from a source operand into a destination YMM register, controlled by an immediate byte that specifies the insertion index.
The following table covers what the source and destinations can be:
| source | destination(s) |
|---|---|
| xmm reg | ymm reg |
| m128 | ymm reg |
DO NOT support LOCK
This instruction is only available in 64-bit mode. It is not supported in compatibility mode.
The immediate operand SHALL be a value between 0 and 3. If the immediate value is outside this range, the instruction is invalid. The source operand MUST be a 128-bit register or memory location; however, only the relevant 64-bit elements are inserted into the 256-bit destination register. Using an unsupported immediate value SHALL result in an invalid opcode exception.