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Core Selector for XR Gate Switch Not Working

weissmf

Hello Smart Reaktor People –

I am trying to implement an XR Gate in Core that gets switched on or off depending on a 0,1,2,3,4 input. I am using colB's core macro as illustrated on this thread from 2025.
Here's the thing: I can't get it to work. The latches are sending correct values in response to the "select" input, but the merge module is not passing that value through to its output. See screenshots. These are three de-bug views of the same event. The first shows the 0 select state; the second shows the latch sending the 1 value; the third shows the merge failing to send the 1 value and instead sending 0.
Maybe I am misunderstanding how colB's original macro is supposed to work? Or I am missing some other important detail.
Thanks!

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colB

That's not what I posted in the other thread

Look again and see if you can spot the important difference

(maybe have a quick read of the core manual section on how merges work)

weissmf

Thank you, colB!
OK, I think I get it.
The merge is not able to sort out all those events in the way that I want because each latch mechanism will send an output every time there's a new event coming from "select." And the merge will prioritize events at the lower input if they all arrive simultaneously, according to the manual.
So, I probably need to maintain the separate merges for each latch mechanism and then sum them using an add module afterwards and then send the output to the XR gate.
Am I on the right track with that?
Thanks!

colB

Yep, you got it right!

Not sure I would sum them though? what exactly is it that you are trying to do?

weissmf

Thank you, colB! This has helped me to think a little more clearly about what the merge module does.

My intention with this structure is to use the output(s) from the colB macro to clock gate one other module based upon the value presented at "select." So, if select = 0, 1, 2, or 4, then the colB macro sends the value 1 to an XR Gate and the other module is switched on, so to speak. That's why I want to sum the individual outputs of the macro. This is part of a larger effort to optimize CPU usage for the ensemble I'm building.

I am naïvely thinking that an add module would be best for achieving this, but your comment seems to indicate there may be a better approach. What do you recommend, based upon what I've described?

colB

https://community.native-instruments.com/discussion/comment/265574#Comment_265574

So 0, 1, 2 or 4 gives gate of 1, what other values are possible and make the gate 0?

weissmf

Thanks, colB.
OK, actually I misspoke. I want "select" values of 0, 1, 2 to produce a macro output of 1. And the I want "select" values of 3, 4 to produce a macro output of 0.
I have plugged a 0 into the latch input of the final two mechanisms. You'll see it if you look closely. That is how I am trying to make possible the 0 gate output.

colB

Something like this should work (untested)

That original macro from the thread was intended to control three separate clock gates with only one active at a time. This is a much more simple context, so a simple solution is best.

Cpu wise, this sort of thing is rarely an issue, mostly its only audio rate processing where cpu efficiency is a consideration. For non audio stuff, its usually about:

1 get it working as simple as possible

2 make it easy to understand

3 test the F@%k out of it.. so throw everything you can think of at it, and make sure it does exactly what you expect. I often do this with a knob at the input and a numeric display at the output. Usually building and testing it in isolation from the rest of the main structure at first (for anything non-trivial).

weissmf

Thank you, colB! Your advice is invaluable. I'll try out this solution and reply back if I have further questions.
I have been testing everything in isolation, and that does seem to be a good method.
Thanks again, really appreciate it. NI should send you on an all expenses paid cruise down the Rhine or something for the contribution you make.

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