fsub

Floating-point Subtract (Double)

FSUB <Dd>, <Dn>, <Dm>

Subtracts two double-precision floating-point registers.

Details

The Floating-point Subtract instruction subtracts two double-precision floating-point registers.

Pseudocode Operation

Dd ← Dn - Dm
// Flags affected: N, Z, C, V

Example

FSUB d0, d1, d2

Encoding

Binary Layout
00011110
011
Rm
001110
Rn
Rd
 
Format Float Data Proc
Opcode 0x1E603800
Extension F.P.

Operands

  • Dd
    Destination 64-bit SIMD/FP register
  • Dn
    First source 64-bit SIMD/FP register
  • Dm
    Second source 64-bit SIMD/FP register