PRGM test to check whether in 4STK or NSTK mode?

[spiff72]

Is there a way within a program to check whether the calculator is in 4STK or NSTK mode?

I am playing around with some simple programs and I think it would be helpful to be able to change the way the program functions based on the 4STK/NSTK toggle.

[Thomas Okken]

Yes: flag 80

See also: https://thomasokken.com/free42/#flags

[spiff72]

Perfect - thanks!  I checked that page and I must have been looking for "NSTK" in my mind instead of "Big Stack".

[MickM]

Just to put a cherry on top of this, would it be possible to add the capability to map a new annunciator in the gif and layout files to a FLAG setting? I've often thought of fully converting myself to NSTK but it would be a nice touch to have a visual cue to confirm I'm in that mode.

[Thomas Okken]

You can tell you're in NSTK mode because the X register is labeled 1: instead of X:. No annunciator necessary. I will die on that hill. :-)

[MickM]

Oh - that's perfect then. I've never used the bigger stack before and didn't know that numbering nomenclature was in effect. It's actually kind of intuitive :-).