pmull

Polynomial Multiply Long

PMULL <Vd>.<Td>, <Vn>.<Ts>, <Vm>.<Ts>

Performs polynomial multiplication over {0,1} producing wide result (Used for GCM).

Details

The Polynomial Multiply Long instruction performs polynomial multiplication over {0,1} producing wide result (Used for GCM).

Pseudocode Operation

// Performs polynomial multiplication over {0,1} producing wide result (Used for GCM)

Example

PMULL v0.4s.Td, v1.4s.Ts, v2.4s.Ts

Encoding

Binary Layout
0
Q
001110
size
1
0000
Rm
1110
Rn
Rd
 
Format SIMD Three Register Diff
Opcode 0x0E20E000
Extension NEON (Crypto/SIMD)

Operands

  • Vd
    Dest (Wide)
  • Vn
    First source SIMD/FP vector register
  • Vm
    Second source SIMD/FP vector register