safety: null checks

[Ola Fosheim Grøstad]

On Tuesday, 24 November 2020 at 08:47:03 UTC, Patrick Schluter 
wrote:
> Understanding this as meaning the 68000 trap# instruction can 
> only be done either in bad faith, either from stupidity*.

I don't know what you are problem is here.

Motorola terminology: trap
Intel terminology: exception

Both mean interrupt.

I chose to use the term "trap" to avoid confusion.