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Effects of running out of memory
I just added another (hopefully the final!) screen to my game and after compilation it locked up at the menu screen. I suspect that this is because of a lack of memory - my compiled code is now 28932 bytes long, so starting at the default of 32768 that takes me up to 61700. The heap is 4k still, yes? So there's not actually enough space to allocate it, I suspect. Compiling with -O2 took the size down a little and allowed it to run for longer, but I was still getting lockups.

I fixed this by moving the ramtop up to 30000 and now it seems fine. However, is there any way for me to be sure that this is enough space? And is there anything I should watch out for now that I've had to use some contended memory?

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