M CHANGES → CHANGES

@@ -8,6 +8,7 @@ - GB MBC: Fix MBC1 RAM enable bit selection
  - GB MBC: Fix MBC2 bit selection
  - GB Video: Always initialize palette
  - GBA BIOS: Fix reloading video registers after reset (fixes mgba.io/i/1808)
+ - GBA Savedata: Fix potential corruption when loading a 1Mbit flash save
  - GBA Video: Fix invalid read in mode 4 mosaic
  - GBA Video: Fix color of disabled screen
  - SM83: Fix flags on little endian PowerPC

M src/gba/savedata.c → src/gba/savedata.c

@@ -599,7 +599,6 @@ }
 
 void _flashSwitchBank(struct GBASavedata* savedata, int bank) {
 	mLOG(GBA_SAVE, DEBUG, "Performing flash bank switch to bank %i", bank);
-	savedata->currentBank = &savedata->data[bank << 16];
 	if (bank > 0 && savedata->type == SAVEDATA_FLASH512) {
 		mLOG(GBA_SAVE, INFO, "Updating flash chip from 512kb to 1Mb");
 		savedata->type = SAVEDATA_FLASH1M;
@@ -614,6 +613,7 @@ savedata->data = savedata->vf->map(savedata->vf, SIZE_CART_FLASH1M, MAP_WRITE);
 			}
 		}
 	}
+	savedata->currentBank = &savedata->data[bank << 16];
 }
 
 void _flashErase(struct GBASavedata* savedata) {