Operations:

Format

Syntax:

Operation:

Operands:

Architecture revision

Opcode

1

paddxh.sh Rd, Rx, Ry 

Rd[31:16] = ASR(SE(Rx[31:16], 17) + SE(Ry[15:0], 17), 1);
Rd[15:0] = ASR(SE(Rx[15:0], 17) + SE(Ry[31:16], 17), 1);
 
{d, x, y} ∈ {0, 1, …, 15}

Rev1+

111

Rx

00000

Ry

001000001110

Rd

3

4

5

4

12

4

Description

Add together the top halfword of Rx with the bottom halfword of Ry and the bottom halfword of Rx with the top halfword of Ry. The resulting halfwords are halved in order to avoid any overflow and then packed together in the destination register.

Status Flags:

Q:

Not affected.

V:

Not affected.

N:

Not affected.

Z:

Not affected.

C:

Not affected.