@Krem Quay Yeah I get the feeling, I rarely think back because I just don't do nor have the time to do what I used to. I was pretty solid with hex editing data and changing variable with windows apps/emulators along with the headers for those old files too but it was a lifetime(for many) ago now.
I like seeing that update, it'll be fantastic when those executables drop for the various OS versions arrive on there.
I imagine if it fails to play nice again, it has to be my US roms and I'll run a test using the Japanese versions instead, maybe it's some flag, maybe it is encrypted and the pceadvance emulator is so ancient it just can't handle that while modern doesn't care. I'm curious to see where it goes. It's a shame that EZF Omega and others don't have the non-PocketNES/GoombaColor emulator cores added into their package given the age and all.
I saw how to grab it before it was listed, forgot about that, but been struggling since posting trying to figure out how on command line to actually build the rom as it keeps asking for a list. I even tried to make it easy stuffing the PCE roms into the same directory as the tool itself. I think it hates *.pce as a wildcard or I'm missing something. I really don't miss commandline at times like this.
Example:
C:\1>fcabuild *.pce --clean-titles -s splash9.raw -o pce-games.gba
Target: PCEAdvance (PCEAdvance)
fcabuild: error: *.pce: no such file
At this rate it's making me feel stupid, shame it lacks a GUI like the other tool had where it was drag n drop. Feels like a lost cause, it's what I get for not doing stuff like this for probably 15-20 years now.
I think I'll see if I can figure out how to get this to work, it's very specific in its nature for PCE stuff on GBA as it is and is GUI based. If not at some point the headache isn't worth the cost.
https://pdroms.de/files/nintendo-game-boy-advance-gba/pceadvance-v7-5