Useful Instructions

Useful instructions, when you want to keep things isolated to certain ports.

2 in, 1 out destructive

| Instruction | Latency | Ports | | imul | 3 | p1 |

1 in, 1 out non-destructive | Instruction | Latency | Ports | Description | | cqo or cdq | 1 | p06 | Sign-extend rax into rdx |