umlal

Unsigned Multiply-Accumulate Long

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

Multiplies unsigned narrow vectors and adds to wide destination.

Details

The Unsigned Multiply-Accumulate Long instruction multiplies unsigned narrow vectors and adds to wide destination.

Pseudocode Operation

// Multiplies unsigned narrow vectors and adds to wide destination

Example

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

Encoding

Binary Layout
0
Q
101110
size
1
0000
Rm
1000
Rn
Rd
 
Format SIMD Three Register Diff
Opcode 0x2E208000
Extension NEON (SIMD)

Operands

  • Vd
    Dest/Acc
  • Vn
    First source SIMD/FP vector register
  • Vm
    Second source SIMD/FP vector register