See explanation
## nop
This snippet, just like the previous, is equivalent to doing nothing.
the value of `rax` in incremented and negated (using [two's complement](https://en.wikipedia.org/wiki/Two%27s_complement)), twice. In other words:
```
-(-(rax+1)+1)
```
which is equivalent to
```
-(-rax-1+1)
```
which is equivalent to
```
rax+1-1
```
which is equivalent to
```
rax
```