mls

Multiply Subtract (Thumb)

MLS <Rd>, <Rm>, <Ra>, <Rn>

Rd = Rn - (Rm * Ra).

Details

The Multiply Subtract instruction rd = Rn - (Rm * Ra).

Pseudocode Operation

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

Example

MLS r0, r2, r5, r1

Encoding

Binary Layout
111110110000
Rm
Ra
Rd
01
Rn
 
Format Thumb Mul
Opcode 0xFB000010
Extension A32 (Base)

Operands

  • Rd
    Destination general-purpose register
  • Rm
    Second source / offset general-purpose register
  • Ra
    Accumulator general-purpose register (multiply-add)
  • Rn
    Acc