dmb

Data Memory Barrier (A32)

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
1111
0101
0111
1111
1111
0000
0101
option
 
Format System
Opcode 0xF57FF050
Extension A32 (Base)

Operands

  • option
    SY, ISH, etc