xsetbv

Set Value of Extended Control Register

XSETBV

Writes EDX:EAX to XCR0 (Enables/disables AVX/SSE states).

Details

The Set Value of Extended Control Register instruction writes EDX:EAX to XCR0 (Enables/disables AVX/SSE states).

Pseudocode Operation

// Writes EDX:EAX to XCR0 (Enables/disables AVX/SSE states)

Example

XSETBV

Encoding

Binary Layout
0F
+0
01
+1
D1
+2
 
Format Legacy
Opcode 0F 01 D1
Extension XSAVE

Operands