SMLAL Instruction Produces Incorrect Result: Expected r2=r3=0, Actual r2=0, r3=4

An issue has been detected where the smlal instruction does not produce the expected result.

```
mov     r0, #4
mov     r1, #-8
mov     r2, #32
mov     r3, #0
smlal   r2, r3, r0, r1
```

The expected result of this is r2=r3=0, but instead, r2=0 and r3=4, which is an incorrect result.