tlbivax

TLB Invalidate Virtual Address Indexed

tlbivax RA, RB

Invalidates a TLB entry by virtual address.

Details

Invalidates a TLB entry matching the virtual address formed by RA and RB. This instruction is privileged and causes any TLB entry with a matching virtual address to be marked invalid. The exact behavior depends on the MMU implementation and may invalidate one or multiple entries.

Pseudocode Operation

EA ← (RA) + (RB)
for each TLB entry matching EA do
  TLB[entry].V ← 0
end for

Example

tlbivax r4, r5

Encoding

Binary Layout
31
0
/
6
RA
11
RB
16
786
21
/
31
 
Format X-form
Opcode 0x7C000622
Extension Embedded

Operands

  • RA
    Base
  • RB
    Index