Value of current location in machine coordinates?

For my toolsetter routines, I'd like to know the value of the current position on the Z-axis in machine coordinates (I know the position of my toolsetter in machine coordinates).

I don't see a way to get this via numbered or named parameters. I don't really want to have to figure out by determining which coordinate system is currently in use and then doing the math, that seems really clunky.

Is there a way?

I suppose I can run my probing routines with G53 on each line…NOPE, can't do that with G38.

Oh, I may have found my answer after more searching: forum.linuxcnc.org/20-g-code/27055-machi...m-g-code-hal-support

You can look up the machine coordinate offset 5221-5390 and add/subtract that from your G53 coordinates to get the position you need. And if you need to look up what machine coordinate system is active there is a parameter for that as well.