fcvtn

Floating-Point Convert Narrow (Single to Half)

FCVTN <Vd>.4H, <Vn>.4S

Converts Single-precision to Half-precision (Bottom).

Details

The Floating-Point Convert Narrow instruction converts Single-precision to Half-precision (Bottom).

Pseudocode Operation

Vd ← convert(Vn)

Example

FCVTN v0.4s.4H, v1.4s.4S

Encoding

Binary Layout
01001110
001
00001
01101
0
Vn
Vd
 
Format NEON FP16
Opcode 0x4E216800
Extension FEAT_FP16 (NEON)

Operands

  • Vd
    Destination SIMD/FP vector register
  • Vn
    First source SIMD/FP vector register