M src/gb/core.c → src/gb/core.c

@@ -170,6 +170,12 @@ static bool _GBCoreLoadSave(struct mCore* core, struct VFile* vf) {
 	return GBLoadSave(core->board, vf);
 }
 
+static bool _GBCoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
+	struct GB* gb = core->board;
+	GBSavedataMask(gb, vf);
+	return true; // TODO: Return a real value
+}
+
 static bool _GBCoreLoadPatch(struct mCore* core, struct VFile* vf) {
 	if (!vf) {
 		return false;
@@ -459,6 +465,7 @@ core->isROM = GBIsROM;
 	core->loadROM = _GBCoreLoadROM;
 	core->loadBIOS = _GBCoreLoadBIOS;
 	core->loadSave = _GBCoreLoadSave;
+	core->loadTemporarySave = _GBCoreLoadTemporarySave;
 	core->loadPatch = _GBCoreLoadPatch;
 	core->unloadROM = _GBCoreUnloadROM;
 	core->reset = _GBCoreReset;

M src/gb/gb.c → src/gb/gb.c

@@ -99,6 +99,7 @@ }
 
 bool GBLoadSave(struct GB* gb, struct VFile* vf) {
 	gb->sramVf = vf;
+	gb->sramRealVf = vf;
 	if (vf) {
 		// TODO: Do this in bank-switching code
 		if (vf->size(vf) < 0x20000) {
@@ -109,6 +110,31 @@ }
 	return gb->memory.sram;
 }
 
+static void GBSramDeinit(struct GB* gb) {
+	if (gb->sramVf) {
+		gb->sramVf->unmap(gb->sramVf, gb->memory.sram, 0x20000);
+		gb->sramVf = 0;
+	} else if (gb->memory.sram) {
+		mappedMemoryFree(gb->memory.sram, 0x20000);
+	}
+	gb->memory.sram = 0;
+}
+
+void GBSavedataMask(struct GB* gb, struct VFile* vf) {
+	GBSramDeinit(gb);
+	gb->sramVf = vf;
+	gb->memory.sram = vf->map(vf, 0x20000, MAP_READ);
+}
+
+void GBSavedataUnmask(struct GB* gb) {
+	GBSramDeinit(gb);
+	if (gb->sramVf == gb->sramRealVf) {
+		return;
+	}
+	gb->sramVf = gb->sramRealVf;
+	gb->memory.sram = gb->sramVf->map(gb->sramVf, 0x20000, MAP_WRITE);
+}
+
 void GBUnloadROM(struct GB* gb) {
 	// TODO: Share with GBAUnloadROM
 	if (gb->memory.rom && gb->memory.romBase != gb->memory.rom) {
@@ -131,13 +157,7 @@ gb->pristineRom = 0;
 		gb->romVf = 0;
 	}
 
-	if (gb->sramVf) {
-		gb->sramVf->unmap(gb->sramVf, gb->memory.sram, 0x8000);
-		gb->sramVf = 0;
-	} else if (gb->memory.sram) {
-		mappedMemoryFree(gb->memory.sram, 0x8000);
-	}
-	gb->memory.sram = 0;
+	GBSramDeinit(gb);
 }
 
 void GBLoadBIOS(struct GB* gb, struct VFile* vf) {
@@ -262,6 +282,8 @@ GBTimerReset(&gb->timer);
 	GBIOReset(gb);
 	GBAudioReset(&gb->audio);
 	GBSIOReset(&gb->sio);
+
+	GBSavedataUnmask(gb);
 }
 
 void GBUpdateIRQs(struct GB* gb) {

M src/gb/gb.h → src/gb/gb.h

@@ -66,6 +66,7 @@ uint32_t romCrc32;
 	struct VFile* romVf;
 	struct VFile* biosVf;
 	struct VFile* sramVf;
+	struct VFile* sramRealVf;
 
 	struct mAVStream* stream;
 
@@ -112,6 +113,9 @@ void GBYankROM(struct GB* gb);
 void GBUnloadROM(struct GB* gb);
 
 void GBLoadBIOS(struct GB* gb, struct VFile* vf);
+
+void GBSavedataMask(struct GB* gb, struct VFile* vf);
+void GBSavedataUnmask(struct GB* gb);
 
 struct Patch;
 void GBApplyPatch(struct GB* gb, struct Patch* patch);

M src/platform/qt/Window.cpp → src/platform/qt/Window.cpp

@@ -891,7 +891,6 @@
 	QAction* loadTemporarySave = new QAction(tr("Load temporary save..."), fileMenu);
 	connect(loadTemporarySave, &QAction::triggered, [this]() { this->selectSave(true); });
 	m_gameActions.append(loadTemporarySave);
-	m_gbaActions.append(loadTemporarySave);
 	addControlledAction(fileMenu, loadTemporarySave, "loadTemporarySave");
 
 	addControlledAction(fileMenu, fileMenu->addAction(tr("Load &patch..."), this, SLOT(selectPatch())), "loadPatch");