Aeroblasters makes mednafen_pce segfault w/ horizontal overscan is ON

Hi there!

I have just discovered that Aeroblasters (any version) makes mednafen_pce segfault on GNU/Linux, both on aarch64 and x86_64.

However, disabling the “Show horizontal overscan” option, the segfault doesn’t happen anymore.

The game does not cause this segfault on mednafen_pce_fast, only on the non-fast core. So, any idea on what’s going on? Is this a known bug of the non-fast pce core? I would expect this on the fast variation of the core, but it seems to be present on the non-fast version instead, which is puzzling,