Just out of curiosity. Is there a way to tell the linker that ISRs have the same priority and thus cannot interrupt each other and can safely be overlayed?
P.S.: And what is the correct passive form of 'to overlay'?
I expanded my overlay generating script to do this:
Before: Program Size: data=61.3 xdata=246 const=231 code=15429 After: Program Size: data=61.0 xdata=246 const=231 code=15425 Scripted: Program Size: data=60.6 xdata=246 const=231 code=15408
It's still not much, but it's something.