Accessing emulated calculator stack/state?

[jmbreuer]

I'm looking to extend the Android port of x48 by copy/paste functionality.

Therefore, I'm looking to access the (calculator, ie the one that's displayed on the screen) stack of the emulated device - any suggestions on how to best do that? Are there any docs that would allow me to make heads or tails of the fields in saturn_t e.g.?

An approximation of pasting could probably work by just simulating key press events... (?) From the perspective of people who might have at least some understanding of the architecture of the device and/or the emulator, is there an obvious 'better' approach?