tlbia

TLB Invalidate All

tlbia

Invalidates the entire Translation Lookaside Buffer.

Details

Invalidates all entries in the Translation Lookaside Buffer (TLB), flushing all virtual-to-physical address translations. This is a privileged instruction used for memory management and typically follows changes to page tables. No condition registers are modified; the instruction may have latency on some implementations.

Pseudocode Operation

for each TLB entry: InvalidateEntry()

Example

tlbia

Encoding

Binary Layout
31
0
/
6
/
11
/
16
370
21
/
31
 
Format X-form
Opcode 0x7C0002E4
Extension Privileged

Operands