final fantasy series whitescreen patch

[multi-vitamin]

final fantasy series currently runs on scfw with a whitescreen.

I tried patching it with the SC v2.71 program and it runs fine.
I compared it with binary viewer and there is a specific part that is patched.

I don't know exactly if this affects this series only.
This is the data that was replaced.

[FF 1&2, 4]
10 9F E5 04 12 80 E5 -> 10 9F E5 00 00 A0 E1
[FF 5, 6]
10 9F E5 04 12 80 E5 -> 10 9F E5 C0 46 80 E5

[OmDRetro]

Hm... If you look for that specific hex pattern in a hex editor / binary viewer, the offset starts at 11A31 for FF 1&2.

Replacing the last 4 bytes of that pattern with 00 00 A0 E1 will allow the ROM to boot on SCFW(while keeping all kernel settings at default). This sounds similar to the issue both @metroid-maniac and I had when we attempted to run the HVCA emulator for the first time.

Allow me to quote him:

"Like retail games, this emulator tries to increase the ROM speed Which supercard is not compatible with. I just disabled that"

Based on what the SuperCard Patcher does(v2.71), it appears to disable the increase ROM speed feature since the SuperCard is not compatible with that.

In the meantime, you can use that modified ROM to load FF games on SCFW 0.5.2 as this may require a kernel enhancement.

[OmDRetro]

Information carried over from GBA Temp thread

For the ROMs with INCREASE CARTRIDGE SPEED:

Note: this is one of those edge cases where using a patched ROM might be needed as the SuperCard SD is NOT compatible with that feature

• Using SuperCard team's patch tool (Super Card V2.71)
  • Install the patching tool (preferably via Windows XP through a type-2 hypervisor like Oracle's Virtual Box)
  • Open the ROM in the Super Card V2.71 patching tool and deselect all parameters from the ROM properties.
    • We only need to use this tool to disable INCREASE ROM SPEED hence why we deselected every other ROM option as those patches are done automatically via SCFW.
• Ignore the status under the Patch column as that is irrelevant(doesn't matter if it shows FAIL or PASS).
• Ensure that your OUT path is somewhere you can access on your computer.
  • For this example, I'll use the "Desktop"
• Export the patched ROM by pressing the OUT button from within the Game List tab(Lower right of the window)
  • It will export 3 files:
    • {ROM NAME}.SAV
    • {ROM NAME}.SCI
    • {ROM NAME}.BIN
      • Take/Copy ONLY the bin file.
• Rename the exported ROM extension from *.BIN to *.GBA
• Transfer the ROM with the modified extension to your micro SD card.
• Play