[OpenBIOS] Re: [PATCH] escc: explicitly mark variable containing incoming keyboard character as volatile

[Segher Boessenkool]

On Fri, Oct 18, 2019 at 08:48:53AM +0100, Mark Cave-Ayland wrote:
> Otherwise the compiler may not understand that a read from the assigned buffer
> is comming from memory-mapped IO space and fail to update accordingly.

I think you should not tell the compiler that whatever writes to ch writes
the same value multiple times in sequence, instead?

Segher