dmb

Data Memory Barrier

DMB <option>

Ensures memory access ordering.

Details

The Data Memory Barrier instruction ensures memory access ordering.

Pseudocode Operation

// Memory/instruction barrier

Example

DMB option

Encoding

Binary Layout
11010101
000
00011
0011
CRm
1011111
 
Format System
Opcode 0xD50330BF
Extension Base

Operands

  • option
    Barrier type (SY, ISH, etc)