qsub16

Saturating Subtract 16

QSUB16<c> <Rd>, <Rn>, <Rm>

Parallel saturating subtract of 2 signed halfwords.

Details

The Saturating Subtract 16 instruction parallel saturating subtract of 2 signed halfwords.

Pseudocode Operation

Rd ← Rn - Rm
// Flags affected: N, Z, C, V

Example

QSUB16 r0, r1, r2

Encoding

Binary Layout
cond
01100010
Rn
Rd
1111
0111
Rm
 
Format SIMD Integer
Opcode 0x06200F70
Extension A32 (DSP)

Operands

  • Rd
    Destination general-purpose register
  • Rn
    First source / base general-purpose register
  • Rm
    Second source / offset general-purpose register