nmachhws

Negative Multiply Accumulate High Halfword Signed

nmachhws RT, RA, RB

Negate product of high halfwords and add to accumulator (Signed Saturation).

Details

The Negative Multiply Accumulate High Halfword Signed instruction negate product of high halfwords and add to accumulator (Signed Saturation).

Pseudocode Operation

// Negate product of high halfwords and add to accumulator (Signed Saturation)

Example

nmachhws r3, r4, r5

Encoding

Binary Layout
4
0
RT
6
RA
11
RB
16
110
21
0
31
 
Format XO-form
Opcode 0x1000006E
Extension Embedded

Operands

  • RT
    Acc/Dest
  • RA
    Src A
  • RB
    Src B