ekeeke
commented
1 year ago It seems some of the MSU-MD patches have an additional patch to change the "SEGA MEGADRIVE" or "SEGA GENESIS" string in the ROM header into "SEGA MEGASD", presumably to fix some incorrect detection when using MSU-MD games on MegaSD flashcarts. Unfortunately, this makes this emulator thinks that the game supports MegaSD hardware features (which are also emulated by this emulator) instead of normal "CD mode 1" as with MSU-MD games, which results in both Sega CD hardware and MegaSD hardware being emulated and, for savestate, with both hardware states being saved, which overrides the fixed state buffer size.
I will need to fix the way emulated hardware is detected when this specific string is found, as it seems (from MegaSD dev manual at least) that CD hardware should be fully emulated when this string is found, and MegaSD hardware features are limited to some enhanced mapper that allo for ROM writes (which no existing hacks or games use for now).
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*** Running: /opt/galauncher/galauncher.sh retroarch megadrive "/home/arcade/shared/roms/megadrive/Road Rash II MSU-MD.bin" Prelaunching Retroarch
error: XDG_RUNTIME_DIR is invalid or not set in the environment.
retroarch: malloc.c:2617: sysmalloc: Assertion ``(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.
/opt/galauncher/emulators/retroarch.sh: line 7: 215796 Aborted (core dumped) retroarch --verbose --log-file "$LOG_DIR"/retroarch.log -L "$core_file" "$rom" ${@:3}
Postlaunching Retroarch
retroarch.log