>Psychtoolbox>PsychOneliners

resultFlag = IsARM([wantTrueHostArch=0])

By default (if wantTrueHostArch omitted or false) returns true if the
cpu architecture for which Octave or Matlab and Psychtoolbox mex files
are built is ARM. Otherwise it returns false.

If wantTrueHostArch is true, then return the true machine processor
architecture of the host computer and operating system. This matters if
one is running Psychtoolbox on a non-native Octave or Matlab on a ARM
operating system + machine via some emulation layer, e.g., most commonly
Octave/Matlab for Apple Intel Macs on an Apple Silicon Mac via Rosetta2
emulation.

Note: True machine detection is currently only implemented for macOS,
otherwise we assume scripting runtime architecture == true architecture
for now.