What is the state of Microcontroller support in d?

[Dan Walmsley via Digitalmars-d]

On Tuesday, 20 June 2017 at 13:45:31 UTC, Mike wrote:
> On Tuesday, 20 June 2017 at 12:32:46 UTC, Dan Walmsley wrote:
>
>> [...]
>
> Depends on your definition of "usable".  Fixing the bloat issue 
> would remove a current road block, and at least allow progress 
> to continue.
>
> [...]

Mike, I was thinking if you had used memory mapped structs 
instead of classes you probably wouldn't have come up across the 
rtti bloat so hard and it although be annoying wouldn't have been 
a show stopper, was there a particular reason to use classes to 
represent the registers?

Dan