Can successfully run scripts/draw to gui without ROM

output/luaScripts/Emugators_HelloWorld.lua

@@ -1,10 +1,14 @@
-	emu.print("okay, but where does this one go?")
-	local y = 6
+	emu.print("Go Gators!")
+	local y = 0
+
 while(true) do
 	gui.drawtext(0, y, "Hello World")
-	y = y + 1
-	soup("this is cool")
-	emugator.yieldwithflag();
-	
+	if(y < 256) then
+		y = y + 1
+	else
+		y = 0
+	end
+	print(y)
+	emugator.yieldwithflag(); -- call this if you want the script to run without emulation (game running)
 	--emu.frameadvance()
 end

src/drivers/win/main.cpp

@@ -965,18 +965,17 @@ doloopy:
 		RedrawWindow(hAppWnd,0,0,RDW_ERASE|RDW_INVALIDATE);
 	}
 	else if (luaYieldFlag) {
-		RedrawWindow(hAppWnd, 0, 0, RDW_ERASE | RDW_VALIDATE);
-
-		while (luaYieldFlag && !exiting) {
-			UpdateFCEUWindow();
+		FCEUI_ResetPalette();
+		while (luaYieldFlag && !exiting && !GameInfo) {
 			luaYieldFlag = false;
+			UpdateFCEUWindow();
 			UpdateRawInputAndHotkeys();
 
 			uint8* gfx = 0;
 			FCEUI_AdvanceNoFrame(&gfx);
 			FCEUD_BlitScreen(gfx);
 
-			Sleep(50);
+			Sleep(25);
 		}
 	}
 	else {

src/drivers/win/window.cpp

@@ -1167,6 +1167,7 @@ bool ALoad(const char *nameo, char* innerFilename, bool silent)
 	updateGameDependentMenus();
 	updateGameDependentMenusDebugger();
 	EmulationPaused = oldPaused;
+
 	return true;
 }
 
@@ -2703,7 +2704,7 @@ void ByebyeWindow()
 	DestroyWindow(hAppWnd);
 }
 
-/// reates the main window.
+/// Creates the main window.
 /// @return Flag that indicates failure (0) or success (1)
 int CreateMainWindow()
 {

src/fceu.cpp

@@ -478,7 +478,7 @@ FCEUGI *FCEUI_LoadGameVirtual(const char *name, int OverwriteVidMode, bool silen
 	if (fp->archiveFilename != "")
 		GameInfo->archiveFilename = strdup(fp->archiveFilename.c_str());
 	GameInfo->archiveCount = fp->archiveCount;
-
+	
 	GameInfo->soundchan = 0;
 	GameInfo->soundrate = 0;
 	GameInfo->name = 0;
@@ -487,7 +487,7 @@ FCEUGI *FCEUI_LoadGameVirtual(const char *name, int OverwriteVidMode, bool silen
 	GameInfo->input[0] = GameInfo->input[1] = SI_UNSET;
 	GameInfo->inputfc = SIFC_UNSET;
 	GameInfo->cspecial = SIS_NONE;
-
+	
 	//try to load each different format
 	bool FCEUXLoad(const char *name, FCEUFILE * fp);
 
@@ -556,7 +556,7 @@ FCEUGI *FCEUI_LoadGameVirtual(const char *name, int OverwriteVidMode, bool silen
 		}
 
 		if (GameInfo->type != GIT_NSF && !disableAutoLSCheats)
-			FCEU_LoadGameCheats(0);
+			//FCEU_LoadGameCheats(0);
 
 		if (AutoResumePlay)
 		{
@@ -886,6 +886,10 @@ void FCEUI_AdvanceNoFrame(uint8** pXBuf) {
 	*pXBuf = XBuf;
 }
 
+void FCEUI_ResetPalette(void) {
+	FCEU_ResetPalette();
+}
+
 void FCEUI_CloseGame(void) {
 	if (!FCEU_IsValidUI(FCEUI_CLOSEGAME))
 		return;

src/fceu.h

@@ -151,8 +151,10 @@ void SetNESDeemph_OldHacky(uint8 d, int force);
 void DrawTextTrans(uint8 *dest, uint32 width, uint8 *textmsg, uint8 fgcolor);
 void FCEU_PutImage(void);
 
-void FCEUI_AdvanceNoFrame(uint8** pXBuf); // - emugator
-void FCEU_ClearScreen(void); // -emugator
+// - emugator
+void FCEUI_AdvanceNoFrame(uint8** pXBuf); 
+void FCEU_ClearScreen(void);
+void FCEUI_ResetPalette(void);
 
 #ifdef FRAMESKIP
 void FCEU_PutImageDummy(void);

src/ines.cpp

@@ -940,9 +940,9 @@ int iNESLoad(const char *name, FCEUFILE *fp, int OverwriteVidMode) {
 	trainerpoo = NULL;
 	ExtraNTARAM = NULL;
 	return LOADER_HANDLED_ERROR;
-
+	
 init_ok:
-
+	
 	GameInfo->mappernum = MapperNo;
 	FCEU_LoadGameSave(&iNESCart);
 

src/lua-engine.cpp

@@ -6469,7 +6469,6 @@ int FCEU_LoadLuaCode(const char *filename, const char *arg)
 
 		// register a few utility functions outside of libraries (in the global namespace)
 		lua_register(L, "print", print);
-		lua_register(L, "soup", print); //emugatordebug
 		lua_register(L, "gethash", gethash),
 		lua_register(L, "tostring", tostring);
 		lua_register(L, "tobitstring", tobitstring);

src/palette.cpp

@@ -71,6 +71,7 @@ static pal *default_palette[8]=
 static void CalculatePalette(void);
 static void ChoosePalette(void);
 static void WritePalette(void);
+static void UseDefaultPalette(void);
 
 //points to the actually selected current palette
 pal *palo = NULL;
@@ -500,6 +501,11 @@ void FCEU_ResetPalette(void)
 		ChoosePalette();
 		WritePalette();
 	}
+	else if (luaYieldFlag) {
+		UseDefaultPalette();
+		WritePalette();
+	}
+
 }
 
 static void ChoosePalette(void)
@@ -552,6 +558,12 @@ static void ChoosePalette(void)
 	}
 }
 
+static void UseDefaultPalette(void) {
+	palo = default_palette[default_palette_selection];
+	//need to calcualte a deemph on the fly.. sorry. maybe support otherwise later
+	ApplyDeemphasisComplete(palo);
+}
+
 void WritePalette(void)
 {
 	int x;