XSAVE Instructions
4 x86 instructions in this extension - click any row for encoding, pseudocode, and full documentation.
| Mnemonic | Syntax | Format | Summary |
|---|---|---|---|
| xgetbv | XGETBV | Legacy | Reads the state of XCR0 (feature mask) into EDX:EAX. |
| xrstor | XRSTOR m | Legacy | Restores specified state components from memory. |
| xsave | XSAVE m | Legacy | Saves specified state components (AVX, SSE, etc.) to memory. |
| xsetbv | XSETBV | Legacy | Writes EDX:EAX to XCR0 (Enables/disables AVX/SSE states). |