sxtah

Signed Extend and Add Halfword

SXTAH<c> <Rd>, <Rn>, <Rm> {, <rotation>}

Sign-extends a halfword and adds to Rn.

Details

The Signed Extend and Add Halfword instruction sign-extends a halfword and adds to Rn.

Pseudocode Operation

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

Example

SXTAH r0, r1, r2

Encoding

Binary Layout
cond
01101011
Rn
Rd
rot
0111
Rm
 
Format Data Proc
Opcode 0x06B00070
Extension A32 (DSP)

Operands

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