[Coco] os9 intercept call from C

[Walter Zambotti]

Alex.

My understanding is signal takes a signal number to trap but intercept
does not. Intercept traps all signals. With intercept it's up to your
trap handler to determine what signal was sent.

The other major difference between signal and intercept is that you must
re-register the same signal with the same function if you want to trap
that signal consecutively.  With intercept on the other hand it keeps
the trap registered and you must de-register the trap by passing a
function pointer of zero if you wish to stop the behavior.

Walter

On 2020-04-19 04:09, Alex Evans wrote:
> Walter, if you do ever want to make signal intercept the assembly way,
> I would guess that the signal number will be in the B register, though
> I can't actually fully confirm it from teh docs I have.
>