GrantM11235[m]: > <@grantm11235:matrix.org> If you replace CommandConstruct with this, you can lazily calculate the values when needed, so you don't need to do redundant work
> ```rust
> #[derive(Clone, Copy, Debug)]
> struct RawCommand(u16);
> 
> impl RawCommand {
>     fn reg_x(self) -> Reg {
>         let nibble = (self.0 >> 8) &0x000F
>         Reg::from_nibble(nibble)
>     }
>     fn reg_y(self) -> Reg {
>         let nibble = (self.0 >> 4) &0x000F
>         Reg::from_nibble(nibble)
>     }
>     fn val4(self) -> u8 {
>         self.0 & 0x000F as u8
>     }
>     fn val8(self) -> u8 {
>         self.0 & 0x00FF as u8
>     }
>     fn val12(self) -> u16 {
>         self.0 & 0x0FFF
>     }
> }
> ```

Wow, I love this.

`Reg::from_nibble(nibble)`