How to get the body of a function/asm statement in hexadecimal

[Ruby the Roobster]

I'm trying to do something like

```d
void main()
{
     auto d = &c;
     *d.writeln;
}

void c()
{
}
```

In an attempt to get the hexadecimal representation of the 
machine code of a function.  Of course, function pointers cannot 
be dereferenced.  What do?

Furthermore, I would like to be able to do the same for an `asm` 
statement.