rdgsbase

Read GS Base

RDGSBASE r64

Reads the GS base address into a register.

Details

The Read GS Base instruction reads the GS base address into a register.

Pseudocode Operation

// Reads the GS base address into a register

Example

RDGSBASE rax

Encoding

Binary Layout
F3
+0
0F
+1
AE
+2
ModRM
+3
 
Format Legacy
Opcode F3 0F AE /1
Extension FSGSBASE

Operands

  • dest
    64-bit general-purpose register (e.g. RAX)