gbapatcher: Add fix for *Top Gun: Combat Zones*

Fix by @Dartz150

Author: RocketRobz

README.md

@@ -96,6 +96,7 @@ You can help translate TWiLight Menu++ on the [Crowdin project](https://crowdin.
 - [ahezard](https://github.com/ahezard): NDMA code from nds-bootstrap
 - Another World & Yellow Wood Goblin: The original akMenu/Wood UI
 - [Arisotura](https://github.com/Arisotura): ROM list from melonDS, and BIOS dumper code from [dsibiosdumper](https://github.com/Arisotura/dsibiosdumper)
+- [Dartz150](https://github.com/Dartz150): Provided fix for *Top Gun: Combat Zones* GBA game
 - [devkitPro](https://github.com/devkitPro): Code used in nds-hb-menu, and the use of the bootloader, devkitARM, libnds, and libfat
 - [edo9300](https://github.com/edo9300): DS Phat check code
 - [Gericom](https://github.com/Gericom), TrolleyDave, and FAST6191: GBA SRAM-patching code, used in gbapatcher ([SRAM patching thread at GBAtemp](https://gbatemp.net/threads/reverse-engineering-gba-patching.60168/))

gbapatcher/arm9/source/main.cpp

@@ -27,6 +27,7 @@ u8 borderData[0x30000] = {0};
 std::string gbaBorder = "default.png";
 
 u32 romSize = 0;
+bool savingAllowed = true;
 
 u32 greenSwapPatch[8] = {
 	0xE59F000C,	// LDR  R0, =0x4000002
@@ -461,6 +462,13 @@ void gptc_patchRom()
 		//Fix white screen crash
 		if (*(u16*)(0x08000000 + 0xBB9F8) == 0x8008)
 			*(u16*)(0x08000000 + 0xBB9F8) = 0x46C0;
+	} else if (gameCode == 0x45593241) {
+		//Top Gun - Combat Zones (USA)
+		//Fix softlock when attempting to save (original cartridge does not have a save chip)
+		if (*(u16*)(0x08000000 + 0x88816) == 0x3501)
+			*(u16*)(0x08000000 + 0x88816) = 0x3401;
+
+		savingAllowed = false;
 	} else if (gameCode == 0x45415741 || gameCode == 0x4A415741) {
 		//Wario Land 4/Advance (USA/Europe/Japan)
 		//Fix white screen crash
@@ -630,7 +638,7 @@ int main(int argc, char **argv) {
 			//iprintf("ROM patched\n");
 		}
 
-		const save_type_t* saveType = save_findTag();
+		const save_type_t* saveType = savingAllowed ? save_findTag() : NULL;
 		//iprintf("Save tag found\n");
 		if (saveType != NULL && saveType->patchFunc != NULL) {
 			if (saveType->patchFunc(saveType) && *(u16*)(0x020000C0) == 0x5A45) {