st64b

Single-copy Atomic 64-byte Store

ST64B <Xt>, [<Xn|SP>]

Stores a 64-byte block of data atomically.

Details

The Single-copy Atomic 64-byte Store instruction stores a 64-byte block of data atomically.

Pseudocode Operation

// Stores a 64-byte block of data atomically

Example

ST64B x3, [x1]

Encoding

Binary Layout
11111000
001
11111
10
00
Rn
Rt
 
Format Load/Store
Opcode 0xF81F7800
Extension LSE (Atomics)

Operands

  • Xt
    Src (First of 8 regs)
  • Xn
    First source / base 64-bit integer register