Fix 32KB DLDI workaround for homebrew made with libnds2

DS-Homebrew · Nov 14, 2024 · d852daa · d852daa
1 parent 7d8b4c9
commit d852daa
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/bootloader/source/dldi_patcher.c b/bootloader/source/dldi_patcher.c
@@ -155,7 +155,11 @@ bool dldiPatchBinary (data_t *binData, u32 binSize) {
 	const bool largeDldi = (pDH[DO_driverSize] > pAH[DO_allocatedSpace]);
 
 	if (largeDldi) {
-		if (memOffset < 0x02000000 || memOffset >= 0x03000000) {
+		const u32 a9exeAddress = *(u32*)0x02FFFE24;
+		u32* a9exe = (u32*)a9exeAddress;
+		const bool libnds2 = (a9exe[0] == 0xEA000007 && a9exe[1] == 0x39444F4D);
+
+		if (!libnds2 && (memOffset < 0x02000000 || memOffset >= 0x03000000)) {
 			// Not enough space for patch in arm7 WRAM
 			return false;
 		}