[fpc-pascal] FPC Graphics options?

[Ryan Joseph]

> On May 19, 2017, at 3:48 AM, Florian Klämpfl <florian at freepascal.org> wrote:
> 
> Well, the reason are the linux calling conventions: there are no callee saved xmm registers. This
> means FPC does not use any single/double register variables. I have some prototype fixes in my local
> git mirror, but they are neither finished nor tested.

Can you please explain how do calling conventions affect this? I failed to run this at all on my Mac but I’m not sure why and even more confused how this would decimate speeds like this.

Regards,
	Ryan Joseph