TONY: Beginnings of refactoring Tony engine's threads to use coroutines

12 files changed, 1262 insertions, 201 deletions

diff --git a/engines/tony/coroutine.cpp b/engines/tony/coroutine.cpp
new file mode 100644
index 0000000000..504dc2a3fd
--- /dev/null
+++ b/engines/tony/coroutine.cpp
@@ -0,0 +1,82 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include "tony/coroutine.h"
+#include "common/hashmap.h"
+#include "common/hash-str.h"
+
+namespace Tony {
+
+
+CoroContext nullContext = NULL;	// FIXME: Avoid non-const global vars
+
+
+#if COROUTINE_DEBUG
+namespace {
+static int s_coroCount = 0;
+
+typedef Common::HashMap<Common::String, int> CoroHashMap;
+static CoroHashMap *s_coroFuncs = 0;
+
+static void changeCoroStats(const char *func, int change) {
+	if (!s_coroFuncs)
+		s_coroFuncs = new CoroHashMap();
+
+	(*s_coroFuncs)[func] += change;
+}
+
+static void displayCoroStats() {
+	debug("%d active coros", s_coroCount);
+
+	// Loop over s_coroFuncs and print info about active coros
+	if (!s_coroFuncs)
+		return;
+	for (CoroHashMap::const_iterator it = s_coroFuncs->begin();
+		it != s_coroFuncs->end(); ++it) {
+		if (it->_value != 0)
+			debug("  %3d x %s", it->_value, it->_key.c_str());
+	}
+}
+
+}
+#endif
+
+CoroBaseContext::CoroBaseContext(const char *func)
+	: _line(0), _sleep(0), _subctx(0) {
+#if COROUTINE_DEBUG
+	_funcName = func;
+	changeCoroStats(_funcName, +1);
+	s_coroCount++;
+#endif
+}
+
+CoroBaseContext::~CoroBaseContext() {
+#if COROUTINE_DEBUG
+	s_coroCount--;
+	changeCoroStats(_funcName, -1);
+	debug("Deleting coro in %s at %p (subctx %p)",
+		_funcName, (void *)this, (void *)_subctx);
+	displayCoroStats();
+#endif
+	delete _subctx;
+}
+
+} // End of namespace Tony
diff --git a/engines/tony/coroutine.h b/engines/tony/coroutine.h
new file mode 100644
index 0000000000..24742a22f9
--- /dev/null
+++ b/engines/tony/coroutine.h
@@ -0,0 +1,271 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef TONY_COROUTINE_H
+#define TONY_COROUTINE_H
+
+#include "common/scummsys.h"
+#include "common/util.h"	// for SCUMMVM_CURRENT_FUNCTION
+
+namespace Tony {
+
+/**
+ * @defgroup TonyCoroutines	Coroutine support for Tony engine
+ *
+ * The following is loosely based on an article by Simon Tatham:
+ *   <http://www.chiark.greenend.org.uk/~sgtatham/coroutines.html>.
+ * However, many improvements and tweaks have been made, in particular
+ * by taking advantage of C++ features not available in C.
+ */
+//@{
+
+
+// Enable this macro to enable some debugging support in the coroutine code.
+//#define COROUTINE_DEBUG	1
+
+/**
+ * The core of any coroutine context which captures the 'state' of a coroutine.
+ * Private use only.
+ */
+struct CoroBaseContext {
+	int _line;
+	int _sleep;
+	CoroBaseContext *_subctx;
+#if COROUTINE_DEBUG
+	const char *_funcName;
+#endif
+	CoroBaseContext(const char *func);
+	~CoroBaseContext();
+};
+
+typedef CoroBaseContext *CoroContext;
+
+
+// FIXME: Document this!
+extern CoroContext nullContext;
+
+/**
+ * Wrapper class which holds a pointer to a pointer to a CoroBaseContext.
+ * The interesting part is the destructor, which kills the context being held,
+ * but ONLY if the _sleep val of that context is zero. This way, a coroutine
+ * can just 'return' w/o having to worry about freeing the allocated context
+ * (in Simon Tatham's original code, one had to use a special macro to
+ * return from a coroutine).
+ */
+class CoroContextHolder {
+	CoroContext &_ctx;
+public:
+	CoroContextHolder(CoroContext &ctx) : _ctx(ctx) {
+		assert(ctx);
+		assert(ctx->_sleep >= 0);
+		ctx->_sleep = 0;
+	}
+	~CoroContextHolder() {
+		if (_ctx && _ctx->_sleep == 0) {
+			delete _ctx;
+			_ctx = 0;
+		}
+	}
+};
+
+
+#define CORO_PARAM    CoroContext &coroParam
+
+
+/**
+ * Begin the declaration of a coroutine context.
+ * This allows declaring variables which are 'persistent' during the
+ * lifetime of the coroutine. An example use would be:
+ *
+ *  CORO_BEGIN_CONTEXT;
+ *    int var;
+ *    char *foo;
+ *  CORO_END_CONTEXT(_ctx);
+ *
+ * It is not possible to initialize variables here, due to the way this
+ * macro is implemented. Furthermore, to use the variables declared in
+ * the coroutine context, you have to access them via the context variable
+ * name that was specified as parameter to CORO_END_CONTEXT, e.g.
+ *   _ctx->var = 0;
+ *
+ * @see CORO_END_CONTEXT
+ *
+ * @note We declare a variable 'DUMMY' to allow the user to specify an 'empty'
+ * context, and so compilers won't complain about ";" following the macro.
+ */
+#define CORO_BEGIN_CONTEXT  \
+	struct CoroContextTag : CoroBaseContext { \
+		CoroContextTag() : CoroBaseContext(SCUMMVM_CURRENT_FUNCTION) {} \
+		int DUMMY
+
+/**
+ * End the declaration of a coroutine context.
+ * @param x	name of the coroutine context
+ * @see CORO_BEGIN_CONTEXT
+ */
+#define CORO_END_CONTEXT(x)    } *x = (CoroContextTag *)coroParam
+
+/**
+ * Begin the code section of a coroutine.
+ * @param x	name of the coroutine context
+ * @see CORO_BEGIN_CODE
+ */
+#define CORO_BEGIN_CODE(x) \
+		if (&coroParam == &nullContext) assert(!nullContext);\
+		if (!x) {coroParam = x = new CoroContextTag();}\
+		CoroContextHolder tmpHolder(coroParam);\
+		switch (coroParam->_line) { case 0:;
+
+/**
+ * End the code section of a coroutine.
+ * @see CORO_END_CODE
+ */
+#define CORO_END_CODE \
+			if (&coroParam == &nullContext) { \
+				delete nullContext; \
+				nullContext = NULL; \
+			} \
+		}
+
+/**
+ * Sleep for the specified number of scheduler cycles.
+ */
+#define CORO_SLEEP(delay) do {\
+			coroParam->_line = __LINE__;\
+			coroParam->_sleep = delay;\
+			assert(&coroParam != &nullContext);\
+			return; case __LINE__:;\
+		} while (0)
+
+#define CORO_GIVE_WAY do { g_scheduler->giveWay(); CORO_SLEEP(1); } while (0)
+#define CORO_RESCHEDULE do { g_scheduler->reschedule(); CORO_SLEEP(1); } while (0)
+
+/**
+ * Stop the currently running coroutine and all calling coroutines.
+ *
+ * This sets _sleep to -1 rather than 0 so that the context doesn't get
+ * deleted by CoroContextHolder, since we want CORO_INVOKE_ARGS to
+ * propogate the _sleep value and return immediately (the scheduler will
+ * then delete the entire coroutine's state, including all subcontexts).
+ */
+#define CORO_KILL_SELF() \
+		do { if (&coroParam != &nullContext) { coroParam->_sleep = -1; } return; } while (0)
+
+
+/**
+ * This macro is to be used in conjunction with CORO_INVOKE_ARGS and
+ * similar macros for calling coroutines-enabled subroutines.
+ */
+#define CORO_SUBCTX   coroParam->_subctx
+
+/**
+ * Invoke another coroutine.
+ *
+ * If the subcontext still exists after the coroutine is invoked, it has
+ * either yielded/slept or killed itself, and so we copy the _sleep value
+ * to our own context and return (execution will continue at the case
+ * statement below, where we loop and call the coroutine again).
+ * If the subcontext is null, the coroutine ended normally, and we can
+ * simply break out of the loop and continue execution.
+ *
+ * @param subCoro	name of the coroutine-enabled function to invoke
+ * @param ARGS		list of arguments to pass to subCoro
+ *
+ * @note ARGS must be surrounded by parentheses, and the first argument
+ *       in this list must always be CORO_SUBCTX. For example, the
+ *       regular function call
+ *          myFunc(a, b);
+ *       becomes the following:
+ *          CORO_INVOKE_ARGS(myFunc, (CORO_SUBCTX, a, b));
+ */
+#define CORO_INVOKE_ARGS(subCoro, ARGS)  \
+		do {\
+			coroParam->_line = __LINE__;\
+			coroParam->_subctx = 0;\
+			do {\
+				subCoro ARGS;\
+				if (!coroParam->_subctx) break;\
+				coroParam->_sleep = coroParam->_subctx->_sleep;\
+				assert(&coroParam != &nullContext);\
+				return; case __LINE__:;\
+			} while (1);\
+		} while (0)
+
+/**
+ * Invoke another coroutine. Similar to CORO_INVOKE_ARGS,
+ * but allows specifying a return value which is returned
+ * if invoked coroutine yields (thus causing the current
+ * coroutine to yield, too).
+ */
+#define CORO_INVOKE_ARGS_V(subCoro, RESULT, ARGS)  \
+		do {\
+			coroParam->_line = __LINE__;\
+			coroParam->_subctx = 0;\
+			do {\
+				subCoro ARGS;\
+				if (!coroParam->_subctx) break;\
+				coroParam->_sleep = coroParam->_subctx->_sleep;\
+				assert(&coroParam != &nullContext);\
+				return RESULT; case __LINE__:;\
+			} while (1);\
+		} while (0)
+
+/**
+ * Convenience wrapper for CORO_INVOKE_ARGS for invoking a coroutine
+ * with no parameters.
+ */
+#define CORO_INVOKE_0(subCoroutine) \
+			CORO_INVOKE_ARGS(subCoroutine,(CORO_SUBCTX))
+
+/**
+ * Convenience wrapper for CORO_INVOKE_ARGS for invoking a coroutine
+ * with one parameter.
+ */
+#define CORO_INVOKE_1(subCoroutine, a0) \
+			CORO_INVOKE_ARGS(subCoroutine,(CORO_SUBCTX,a0))
+
+/**
+ * Convenience wrapper for CORO_INVOKE_ARGS for invoking a coroutine
+ * with two parameters.
+ */
+#define CORO_INVOKE_2(subCoroutine, a0,a1) \
+			CORO_INVOKE_ARGS(subCoroutine,(CORO_SUBCTX,a0,a1))
+
+/**
+ * Convenience wrapper for CORO_INVOKE_ARGS for invoking a coroutine
+ * with three parameters.
+ */
+#define CORO_INVOKE_3(subCoroutine, a0,a1,a2) \
+			CORO_INVOKE_ARGS(subCoroutine,(CORO_SUBCTX,a0,a1,a2))
+
+/**
+ * Convenience wrapper for CORO_INVOKE_ARGS for invoking a coroutine
+ * with four parameters.
+ */
+#define CORO_INVOKE_4(subCoroutine, a0,a1,a2,a3) \
+			CORO_INVOKE_ARGS(subCoroutine,(CORO_SUBCTX,a0,a1,a2,a3))
+
+//@}
+
+} // End of namespace Tony
+
+#endif		// TONY_COROUTINE_H
diff --git a/engines/tony/custom.cpp b/engines/tony/custom.cpp
index 3400235563..1d28fa9ece 100644
--- a/engines/tony/custom.cpp
+++ b/engines/tony/custom.cpp
@@ -297,38 +297,38 @@ void CharsLoadAll(Common::InSaveFile *f) {
 	}
 }
 
-DECLARE_CUSTOM_FUNCTION(FaceToMe)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(FaceToMe)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->SetPattern(Tony->PAT_STANDDOWN);
 }
 
-DECLARE_CUSTOM_FUNCTION(BackToMe)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(BackToMe)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->SetPattern(Tony->PAT_STANDUP);
 }
 
-DECLARE_CUSTOM_FUNCTION(LeftToMe)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(LeftToMe)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->SetPattern(Tony->PAT_STANDLEFT);
 }
 
-DECLARE_CUSTOM_FUNCTION(RightToMe)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(RightToMe)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->SetPattern(Tony->PAT_STANDRIGHT);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonySetPalesati)(uint32 bStatus, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySetPalesati)(CORO_PARAM, uint32 bStatus, uint32, uint32, uint32) {
 	SetPalesati(bStatus);	
 }
 
-DECLARE_CUSTOM_FUNCTION(MySleep)(uint32 dwTime, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MySleep)(CORO_PARAM, uint32 dwTime, uint32, uint32, uint32) {
 	if (bSkipIdle) return;
 	Sleep(dwTime);
 }
 
-DECLARE_CUSTOM_FUNCTION(SetAlwaysDisplay)(uint32 val, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SetAlwaysDisplay)(CORO_PARAM, uint32 val, uint32, uint32, uint32) {
 	bAlwaysDisplay = (val != 0);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(SetPointer)(uint32 dwPointer, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SetPointer)(CORO_PARAM, uint32 dwPointer, uint32, uint32, uint32) {
 	switch (dwPointer) {
 		case 1:
 			Pointer->SetSpecialPointer(Pointer->PTR_FRECCIASU);
@@ -369,7 +369,7 @@ VoiceHeader *SearchVoiceHeader(uint32 codehi, uint32 codelo) {
 }
 
 
-DECLARE_CUSTOM_FUNCTION(SendTonyMessage)(uint32 dwMessage, uint32 nX, uint32 nY, uint32) {
+DECLARE_CUSTOM_FUNCTION(SendTonyMessage)(CORO_PARAM, uint32 dwMessage, uint32 nX, uint32 nY, uint32) {
 	RMMessage msg(dwMessage);
 	int i;
 	int curOffset = 0;
@@ -476,12 +476,12 @@ DECLARE_CUSTOM_FUNCTION(SendTonyMessage)(uint32 dwMessage, uint32 nX, uint32 nY,
 	Tony->EndTalk();
 }
 
-DECLARE_CUSTOM_FUNCTION(ChangeBoxStatus)(uint32 nLoc, uint32 nBox, uint32 nStatus, uint32) {
+DECLARE_CUSTOM_FUNCTION(ChangeBoxStatus)(CORO_PARAM, uint32 nLoc, uint32 nBox, uint32 nStatus, uint32) {
 	Boxes->ChangeBoxStatus(nLoc,nBox,nStatus);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(CustLoadLocation)(uint32 nLoc, uint32 tX, uint32 tY, uint32 bUseStartPos) {
+DECLARE_CUSTOM_FUNCTION(CustLoadLocation)(CORO_PARAM, uint32 nLoc, uint32 tX, uint32 tY, uint32 bUseStartPos) {
 	HANDLE h;
 
 	Freeze();
@@ -504,7 +504,7 @@ DECLARE_CUSTOM_FUNCTION(CustLoadLocation)(uint32 nLoc, uint32 tX, uint32 tY, uin
 RMPoint SFM_pt;
 int SFM_nLoc;
 
-DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgStart)(uint32 nMsg, uint32 nFont, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgStart)(CORO_PARAM, uint32 nMsg, uint32 nFont, uint32, uint32) {
 	RMMessage msg(nMsg);
 	RMGfxClearTask clear;
 	int i;
@@ -554,14 +554,14 @@ DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgStart)(uint32 nMsg, uint32 nFont, uint3
 	}
 }
 
-DECLARE_CUSTOM_FUNCTION(ClearScreen)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(ClearScreen)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	RMGfxClearTask clear;
 
 	LinkGraphicTask(&clear);
 	WaitFrame();
 }
 
-DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgEnd)(uint32 bNotEnableTony, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgEnd)(CORO_PARAM, uint32 bNotEnableTony, uint32, uint32, uint32) {
 	Freeze();
 	LoadLocation(SFM_nLoc,RMPoint(SFM_pt.x,SFM_pt.y),RMPoint(-1,-1));
 	if (!bNotEnableTony)
@@ -573,18 +573,25 @@ DECLARE_CUSTOM_FUNCTION(SendFullscreenMsgEnd)(uint32 bNotEnableTony, uint32, uin
 }
 
 
-DECLARE_CUSTOM_FUNCTION(SendFullscreenMessage)(uint32 nMsg, uint32 nFont, uint32, uint32) {
-	SendFullscreenMsgStart(nMsg,nFont,0,0);
-	SendFullscreenMsgEnd(0, 0, 0, 0);
+DECLARE_CUSTOM_FUNCTION(SendFullscreenMessage)(CORO_PARAM, uint32 nMsg, uint32 nFont, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
+	CORO_INVOKE_4(SendFullscreenMsgStart, nMsg, nFont, 0, 0);
+	CORO_INVOKE_4(SendFullscreenMsgEnd, 0, 0, 0, 0);
+
+	CORO_END_CODE;
 }
 
 bool bNoOcchioDiBue = false;
 
-DECLARE_CUSTOM_FUNCTION(NoOcchioDiBue)(uint32, uint32, uint32, uint32) {
- bNoOcchioDiBue = true;
+DECLARE_CUSTOM_FUNCTION(NoOcchioDiBue)(CORO_PARAM, uint32, uint32, uint32, uint32) {
+	bNoOcchioDiBue = true;
 }
 
-DECLARE_CUSTOM_FUNCTION(CloseLocation)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(CloseLocation)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	if (!bNoOcchioDiBue) {
 	  InitWipe(1);
 	  WaitWipeEnd();
@@ -598,7 +605,7 @@ DECLARE_CUSTOM_FUNCTION(CloseLocation)(uint32, uint32, uint32, uint32) {
 }
 
 
-DECLARE_CUSTOM_FUNCTION(ChangeLocation)(uint32 nLoc, uint32 tX, uint32 tY, uint32 bUseStartPos) {
+DECLARE_CUSTOM_FUNCTION(ChangeLocation)(CORO_PARAM, uint32 nLoc, uint32 tX, uint32 tY, uint32 bUseStartPos) {
 	HANDLE h;
 
 	if (!bNoOcchioDiBue) {
@@ -647,40 +654,48 @@ DECLARE_CUSTOM_FUNCTION(ChangeLocation)(uint32 nLoc, uint32 tX, uint32 tY, uint3
 
 }
 
-DECLARE_CUSTOM_FUNCTION(SetLocStartPosition)(uint32 nLoc, uint32 lX, uint32 lY, uint32) {
+DECLARE_CUSTOM_FUNCTION(SetLocStartPosition)(CORO_PARAM, uint32 nLoc, uint32 lX, uint32 lY, uint32) {
 	StartLocPos[nLoc].Set(lX,lY);	
 }
 
-DECLARE_CUSTOM_FUNCTION(SaveTonyPosition)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SaveTonyPosition)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	saveTonyPos = Tony->Position();
 	saveTonyLoc = Loc->TEMPGetNumLoc();
 }
 
-DECLARE_CUSTOM_FUNCTION(RestoreTonyPosition)(uint32, uint32, uint32, uint32) {
-	ChangeLocation(saveTonyLoc, saveTonyPos.x, saveTonyPos.y, 0);
+DECLARE_CUSTOM_FUNCTION(RestoreTonyPosition)(CORO_PARAM, uint32, uint32, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
+	CORO_INVOKE_4(ChangeLocation, saveTonyLoc, saveTonyPos.x, saveTonyPos.y, 0);
+	
 	MCharResetCodes();
+
+	CORO_END_CODE;
 }
 
 
-DECLARE_CUSTOM_FUNCTION(DisableInput)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(DisableInput)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	MainDisableInput();
 }
 
 
-DECLARE_CUSTOM_FUNCTION(EnableInput)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(EnableInput)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	MainEnableInput();
 }
 
-DECLARE_CUSTOM_FUNCTION(StopTony)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(StopTony)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->StopNoAction();
 }
 
 
-DECLARE_CUSTOM_FUNCTION(CustEnableGUI)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(CustEnableGUI)(CORO_PARAM, uint32, uint32, uint32, uint32) {
   EnableGUI();
 }
 
-DECLARE_CUSTOM_FUNCTION(CustDisableGUI)(uint32, uint32, uint32, uint32)
+DECLARE_CUSTOM_FUNCTION(CustDisableGUI)(CORO_PARAM, uint32, uint32, uint32, uint32)
 {
   DisableGUI();
 }
@@ -731,31 +746,31 @@ void TonyGenericPut2(uint32 nDirection) {
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeUp1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeUp1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake1(0);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeMid1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeMid1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake1(1);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeDown1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeDown1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake1(2);
 }
 
 
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeUp2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeUp2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake2(0);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeMid2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeMid2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake2(1);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyTakeDown2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyTakeDown2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericTake2(2);
 }
 
@@ -765,42 +780,42 @@ DECLARE_CUSTOM_FUNCTION(TonyTakeDown2)(uint32, uint32, uint32, uint32) {
 
 
 
-DECLARE_CUSTOM_FUNCTION(TonyPutUp1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutUp1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut1(0);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonyPutMid1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutMid1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut1(1);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyPutDown1)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutDown1)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut1(2);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyPutUp2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutUp2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut2(0);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(TonyPutMid2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutMid2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut2(1);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyPutDown2)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPutDown2)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	TonyGenericPut2(2);
 }
 
 
 
-DECLARE_CUSTOM_FUNCTION(TonyPerTerra)(uint32 dwParte, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPerTerra)(CORO_PARAM, uint32 dwParte, uint32, uint32, uint32) {
 	if (dwParte== 0)
 		Tony->SetPattern(Tony->PAT_PERTERRALEFT);
 	else
 		Tony->SetPattern(Tony->PAT_PERTERRARIGHT);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySiRialza)(uint32 dwParte, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySiRialza)(CORO_PARAM, uint32 dwParte, uint32, uint32, uint32) {
 	if (dwParte== 0)
 		Tony->SetPattern(Tony->PAT_SIRIALZALEFT);
 	else
@@ -810,11 +825,11 @@ DECLARE_CUSTOM_FUNCTION(TonySiRialza)(uint32 dwParte, uint32, uint32, uint32) {
 		Tony->WaitForEndPattern();
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyPastorella)(uint32 bIsPast, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyPastorella)(CORO_PARAM, uint32 bIsPast, uint32, uint32, uint32) {
   Tony->SetPastorella(bIsPast);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyFischietto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyFischietto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->SetPattern(Tony->PAT_FISCHIETTORIGHT);
 	if (!bSkipIdle)
 		Tony->WaitForEndPattern();
@@ -827,182 +842,182 @@ void TonySetNumTexts(uint32 dwText) {
 	bTonyInTexts = false;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyRide)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyRide)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_RIDE;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyRidacchia)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyRidacchia)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_RIDE2;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyFianchi)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyFianchi)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_FIANCHI;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyCanta)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyCanta)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CANTA;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySiIndica)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySiIndica)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_SIINDICA;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySpaventatoConMani)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySpaventatoConMani)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_SPAVENTATO;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySpaventatoSenzaMani)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySpaventatoSenzaMani)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_SPAVENTATO2;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConMartello)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConMartello)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONMARTELLO;
 	Tony->SetPattern(Tony->PAT_CONMARTELLO);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConBicchiere)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConBicchiere)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONBICCHIERE;
 	Tony->SetPattern(Tony->PAT_CONBICCHIERE);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConVerme)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConVerme)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONVERME;
 	Tony->SetPattern(Tony->PAT_CONVERME);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConCorda)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConCorda)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONCORDA;
 	Tony->SetPattern(Tony->PAT_CONCORDA);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConSegretaria)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConSegretaria)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONSEGRETARIA;
 	Tony->SetPattern(Tony->PAT_CONSEGRETARIA);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConConiglioANIM)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConConiglioANIM)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONCONIGLIO;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConRicettaANIM)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConRicettaANIM)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONRICETTA;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConCarteANIM)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConCarteANIM)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONCARTE;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConPupazzoANIM)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConPupazzoANIM)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_CONPUPAZZO;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConPupazzoStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConPupazzoStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONPUPAZZOSTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONPUPAZZOSTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConPupazzoEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConPupazzoEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONPUPAZZOSTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConConiglioStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConConiglioStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONCONIGLIOSTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONCONIGLIOSTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConConiglioEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConConiglioEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONCONIGLIOSTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConRicettaStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConRicettaStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONRICETTASTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONRICETTASTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConRicettaEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConRicettaEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONRICETTASTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConCarteStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConCarteStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONCARTESTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONCARTESTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConCarteEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConCarteEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONCARTESTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConTaccuinoStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConTaccuinoStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONTACCUINOSTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONTACCUINOSTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConTaccuinoEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConTaccuinoEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONTACCUINOSTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConMegafonoStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConMegafonoStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONMEGAFONOSTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONMEGAFONOSTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConMegafonoEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConMegafonoEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONMEGAFONOSTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConBarbaStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConBarbaStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_CONBARBASTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_CONBARBASTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyConBarbaEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyConBarbaEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_CONBARBASTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySpaventatoStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySpaventatoStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	nTonyNextTalkType = Tony->TALK_SPAVENTATOSTATIC;
 	bStaticTalk = true;
 	Tony->StartStatic(Tony->TALK_SPAVENTATOSTATIC);
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySpaventatoEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySpaventatoEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->EndStatic(Tony->TALK_SPAVENTATOSTATIC);
 	bStaticTalk = false;
 	nTonyNextTalkType = Tony->TALK_NORMAL;
@@ -1010,29 +1025,43 @@ DECLARE_CUSTOM_FUNCTION(TonySpaventatoEnd)(uint32, uint32, uint32, uint32) {
 
 
 
-DECLARE_CUSTOM_FUNCTION(TonySchifato)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySchifato)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
 	TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_SCHIFATO;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySniffaLeft)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySniffaLeft)(CORO_PARAM, uint32, uint32, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
 	Tony->SetPattern(Tony->PAT_SNIFFA_LEFT);
 	Tony->WaitForEndPattern();
-	LeftToMe(0, 0, 0, 0);
+	CORO_INVOKE_4(LeftToMe, 0, 0, 0, 0);
+
+	CORO_END_CODE;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonySniffaRight)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonySniffaRight)(CORO_PARAM, uint32, uint32, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
 	Tony->SetPattern(Tony->PAT_SNIFFA_RIGHT);
 	Tony->WaitForEndPattern();
-	RightToMe(0, 0, 0, 0);
+	CORO_INVOKE_4(RightToMe, 0, 0, 0, 0);
+
+	CORO_END_CODE;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyNaah)(uint32 dwText, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyNaah)(CORO_PARAM, uint32 dwText, uint32, uint32, uint32) {
   TonySetNumTexts(dwText);
 	nTonyNextTalkType = Tony->TALK_NAAH;
 }
 
-DECLARE_CUSTOM_FUNCTION(TonyMacbeth)(uint32 nPos, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TonyMacbeth)(CORO_PARAM, uint32 nPos, uint32, uint32, uint32) {
 	switch (nPos) {
 	case 1:
 		nTonyNextTalkType = Tony->TALK_MACBETH1;
@@ -1065,15 +1094,15 @@ DECLARE_CUSTOM_FUNCTION(TonyMacbeth)(uint32 nPos, uint32, uint32, uint32) {
 }
 
 
-DECLARE_CUSTOM_FUNCTION(EnableTony)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(EnableTony)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Tony->Show();
 }
 
-DECLARE_CUSTOM_FUNCTION(DisableTony)(uint32 bShowOmbra, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(DisableTony)(CORO_PARAM, uint32 bShowOmbra, uint32, uint32, uint32) {
 	Tony->Hide(bShowOmbra);
 }
 
-DECLARE_CUSTOM_FUNCTION(WaitForPatternEnd)(uint32 nItem, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(WaitForPatternEnd)(CORO_PARAM, uint32 nItem, uint32, uint32, uint32) {
 	RMItem *item = Loc->GetItemFromCode(nItem);
 	
 	if (!bSkipIdle && item != NULL)
@@ -1081,22 +1110,22 @@ DECLARE_CUSTOM_FUNCTION(WaitForPatternEnd)(uint32 nItem, uint32, uint32, uint32)
 }
 
 
-DECLARE_CUSTOM_FUNCTION(SetTonyPosition)(uint32 nX, uint32 nY, uint32 nLoc, uint32) {
+DECLARE_CUSTOM_FUNCTION(SetTonyPosition)(CORO_PARAM, uint32 nX, uint32 nY, uint32 nLoc, uint32) {
 	Tony->SetPosition(RMPoint(nX, nY), nLoc);
 }
 
-DECLARE_CUSTOM_FUNCTION(MoveTonyAndWait)(uint32 nX, uint32 nY, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MoveTonyAndWait)(CORO_PARAM, uint32 nX, uint32 nY, uint32, uint32) {
 	Tony->Move(RMPoint(nX, nY));
 	
 	if (!bSkipIdle)
 		Tony->WaitForEndMovement();
 }
 
-DECLARE_CUSTOM_FUNCTION(MoveTony)(uint32 nX, uint32 nY, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MoveTony)(CORO_PARAM, uint32 nX, uint32 nY, uint32, uint32) {
 	Tony->Move(RMPoint(nX, nY));
 }
 
-DECLARE_CUSTOM_FUNCTION(ScrollLocation)(uint32 nX, uint32 nY, uint32 sX, uint32 sY) {
+DECLARE_CUSTOM_FUNCTION(ScrollLocation)(CORO_PARAM, uint32 nX, uint32 nY, uint32 sX, uint32 sY) {
 	int lx, ly;
 	RMPoint pt;
 
@@ -1133,7 +1162,7 @@ DECLARE_CUSTOM_FUNCTION(ScrollLocation)(uint32 nX, uint32 nY, uint32 sX, uint32
 	}
 }
 
-DECLARE_CUSTOM_FUNCTION(SyncScrollLocation)(uint32 nX, uint32 nY, uint32 sX, uint32 sY) {
+DECLARE_CUSTOM_FUNCTION(SyncScrollLocation)(CORO_PARAM, uint32 nX, uint32 nY, uint32 sX, uint32 sY) {
 	int lx, ly;
 	RMPoint pt, startpt;
 	uint32 dwStartTime, dwCurTime, dwTotalTime;
@@ -1231,7 +1260,7 @@ DECLARE_CUSTOM_FUNCTION(SyncScrollLocation)(uint32 nX, uint32 nY, uint32 sX, uin
 }
 
 
-DECLARE_CUSTOM_FUNCTION(ChangeHotspot)(uint32 dwCode, uint32 nX, uint32 nY, uint32) {
+DECLARE_CUSTOM_FUNCTION(ChangeHotspot)(CORO_PARAM, uint32 dwCode, uint32 nX, uint32 nY, uint32) {
 	int i;
 
 	for (i = 0; i < curChangedHotspot; i++)
@@ -1252,15 +1281,15 @@ DECLARE_CUSTOM_FUNCTION(ChangeHotspot)(uint32 dwCode, uint32 nX, uint32 nY, uint
 }
 
 
-DECLARE_CUSTOM_FUNCTION(AutoSave)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(AutoSave)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->AutoSave();
 }
 
-DECLARE_CUSTOM_FUNCTION(Abort)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(Abort)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->Abort();
 }
 
-DECLARE_CUSTOM_FUNCTION(TremaSchermo)(uint32 nScosse, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TremaSchermo)(CORO_PARAM, uint32 nScosse, uint32, uint32, uint32) {
 	uint32 i;
 	uint32 curTime = _vm->GetTime();
 	int dirx,diry;
@@ -1296,7 +1325,7 @@ DECLARE_CUSTOM_FUNCTION(TremaSchermo)(uint32 nScosse, uint32, uint32, uint32) {
  *	Personaggi
  */
 
-DECLARE_CUSTOM_FUNCTION(CharSetCode)(uint32 nChar, uint32 nCode, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(CharSetCode)(CORO_PARAM, uint32 nChar, uint32 nCode, uint32, uint32) {
 	assert(nChar < 16);
 	Character[nChar].code = nCode;
 	Character[nChar].item = Loc->GetItemFromCode(nCode);
@@ -1311,26 +1340,26 @@ DECLARE_CUSTOM_FUNCTION(CharSetCode)(uint32 nChar, uint32 nCode, uint32, uint32)
 	IsMChar[nChar] = false;
 }
 
-DECLARE_CUSTOM_FUNCTION(CharSetColor)(uint32 nChar, uint32 r, uint32 g, uint32 b) {
+DECLARE_CUSTOM_FUNCTION(CharSetColor)(CORO_PARAM, uint32 nChar, uint32 r, uint32 g, uint32 b) {
 	assert(nChar<16);
 	Character[nChar].r = r;
 	Character[nChar].g = g;
 	Character[nChar].b = b;
 }
 
-DECLARE_CUSTOM_FUNCTION(CharSetTalkPattern)(uint32 nChar, uint32 tp, uint32 sp, uint32) {
+DECLARE_CUSTOM_FUNCTION(CharSetTalkPattern)(CORO_PARAM, uint32 nChar, uint32 tp, uint32 sp, uint32) {
 	assert(nChar<16);
 	Character[nChar].talkpattern = tp;
 	Character[nChar].standpattern = sp;
 }
 
-DECLARE_CUSTOM_FUNCTION(CharSetStartEndTalkPattern)(uint32 nChar, uint32 sp, uint32 ep, uint32) {
+DECLARE_CUSTOM_FUNCTION(CharSetStartEndTalkPattern)(CORO_PARAM, uint32 nChar, uint32 sp, uint32 ep, uint32) {
 	assert(nChar<16);
 	Character[nChar].starttalkpattern=sp;
 	Character[nChar].endtalkpattern=ep;
 }
 
-DECLARE_CUSTOM_FUNCTION(CharSendMessage)(uint32 nChar, uint32 dwMessage, uint32 bIsBack, uint32) {
+DECLARE_CUSTOM_FUNCTION(CharSendMessage)(CORO_PARAM, uint32 nChar, uint32 dwMessage, uint32 bIsBack, uint32) {
 	RMMessage msg(dwMessage);
 	int i;
 	RMPoint pt;
@@ -1433,15 +1462,15 @@ DECLARE_CUSTOM_FUNCTION(CharSendMessage)(uint32 nChar, uint32 dwMessage, uint32
 	Unfreeze();
 }
 
-DECLARE_CUSTOM_FUNCTION(AddInventory)(uint32 dwCode, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(AddInventory)(CORO_PARAM, uint32 dwCode, uint32, uint32, uint32) {
 	Inventory->AddItem(dwCode);	
 }
 
-DECLARE_CUSTOM_FUNCTION(RemoveInventory)(uint32 dwCode, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(RemoveInventory)(CORO_PARAM, uint32 dwCode, uint32, uint32, uint32) {
 	Inventory->RemoveItem(dwCode);
 }
 
-DECLARE_CUSTOM_FUNCTION(ChangeInventoryStatus)(uint32 dwCode, uint32 dwStatus, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(ChangeInventoryStatus)(CORO_PARAM, uint32 dwCode, uint32 dwStatus, uint32, uint32) {
   Inventory->ChangeItemStatus(dwCode,dwStatus);
 }
 
@@ -1452,7 +1481,7 @@ DECLARE_CUSTOM_FUNCTION(ChangeInventoryStatus)(uint32 dwCode, uint32 dwStatus, u
  *	Mastri Personaggi
  */
 
-DECLARE_CUSTOM_FUNCTION(MCharSetCode)(uint32 nChar, uint32 nCode, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharSetCode)(CORO_PARAM, uint32 nChar, uint32 nCode, uint32, uint32) {
 	assert(nChar < 10);
 	MCharacter[nChar].code=nCode;
 	if (nCode== 0)
@@ -1474,19 +1503,19 @@ DECLARE_CUSTOM_FUNCTION(MCharSetCode)(uint32 nChar, uint32 nCode, uint32, uint32
 	IsMChar[nChar] = true;
 }
 
-DECLARE_CUSTOM_FUNCTION(MCharResetCode)(uint32 nChar, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharResetCode)(CORO_PARAM, uint32 nChar, uint32, uint32, uint32) {
 	MCharacter[nChar].item=Loc->GetItemFromCode(MCharacter[nChar].code);
 }
 
 
-DECLARE_CUSTOM_FUNCTION(MCharSetPosition)(uint32 nChar, uint32 nX, uint32 nY, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharSetPosition)(CORO_PARAM, uint32 nChar, uint32 nX, uint32 nY, uint32) {
 	assert(nChar < 10);
 	MCharacter[nChar].x=nX;
 	MCharacter[nChar].y=nY;
 }
 
 
-DECLARE_CUSTOM_FUNCTION(MCharSetColor)(uint32 nChar, uint32 r, uint32 g, uint32 b) {
+DECLARE_CUSTOM_FUNCTION(MCharSetColor)(CORO_PARAM, uint32 nChar, uint32 r, uint32 g, uint32 b) {
 	assert(nChar < 10);
 	MCharacter[nChar].r=r;
 	MCharacter[nChar].g=g;
@@ -1494,7 +1523,7 @@ DECLARE_CUSTOM_FUNCTION(MCharSetColor)(uint32 nChar, uint32 r, uint32 g, uint32
 }
 
 
-DECLARE_CUSTOM_FUNCTION(MCharSetNumTalksInGroup)(uint32 nChar, uint32 nGroup, uint32 nTalks, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharSetNumTalksInGroup)(CORO_PARAM, uint32 nChar, uint32 nGroup, uint32 nTalks, uint32) {
   assert(nChar < 10);
 	assert(nGroup < 10);
 
@@ -1502,7 +1531,7 @@ DECLARE_CUSTOM_FUNCTION(MCharSetNumTalksInGroup)(uint32 nChar, uint32 nGroup, ui
 }
 
 
-DECLARE_CUSTOM_FUNCTION(MCharSetCurrentGroup)(uint32 nChar, uint32 nGroup, uint32, uint32)
+DECLARE_CUSTOM_FUNCTION(MCharSetCurrentGroup)(CORO_PARAM, uint32 nChar, uint32 nGroup, uint32, uint32)
 {
   assert(nChar < 10);
 	assert(nGroup < 10);
@@ -1510,21 +1539,21 @@ DECLARE_CUSTOM_FUNCTION(MCharSetCurrentGroup)(uint32 nChar, uint32 nGroup, uint3
 	MCharacter[nChar].curgroup = nGroup;
 }
 
-DECLARE_CUSTOM_FUNCTION(MCharSetNumTexts)(uint32 nChar, uint32 nTexts, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharSetNumTexts)(CORO_PARAM, uint32 nChar, uint32 nTexts, uint32, uint32) {
 	assert(nChar < 10);
 
 	MCharacter[nChar].numtexts=nTexts-1;
 	MCharacter[nChar].bInTexts = false;
 }
 
-DECLARE_CUSTOM_FUNCTION(MCharSetAlwaysBack)(uint32 nChar, uint32 bAlwaysBack, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MCharSetAlwaysBack)(CORO_PARAM, uint32 nChar, uint32 bAlwaysBack, uint32, uint32) {
 	assert(nChar < 10);
 
 	MCharacter[nChar].bAlwaysBack=bAlwaysBack;
 }
 
 
-DECLARE_CUSTOM_FUNCTION(MCharSendMessage)(uint32 nChar, uint32 dwMessage, uint32 bIsBack, uint32 nFont) {
+DECLARE_CUSTOM_FUNCTION(MCharSendMessage)(CORO_PARAM, uint32 nChar, uint32 dwMessage, uint32 bIsBack, uint32 nFont) {
 	RMMessage msg(dwMessage);
 	int i;
 	int parm;
@@ -1645,7 +1674,7 @@ DECLARE_CUSTOM_FUNCTION(MCharSendMessage)(uint32 nChar, uint32 dwMessage, uint32
 
 int curDialog;
 
-DECLARE_CUSTOM_FUNCTION(SendDialogMessage)(uint32 nPers, uint32 nMsg, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(SendDialogMessage)(CORO_PARAM, uint32 nPers, uint32 nMsg, uint32, uint32) {
 	LPSTR string;
 	RMTextDialog* text;
 	int parm;
@@ -1822,7 +1851,7 @@ DECLARE_CUSTOM_FUNCTION(SendDialogMessage)(uint32 nPers, uint32 nMsg, uint32, ui
 
 // @@@@ QUESTA NON SI PUO' SKIPPARE!!!!!!!!!!!!!!!!!!!
 
-DECLARE_CUSTOM_FUNCTION(StartDialog)(uint32 nDialog, uint32 nStartGroup, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(StartDialog)(CORO_PARAM, uint32 nDialog, uint32 nStartGroup, uint32, uint32) {
 	int nChoice;
 	uint32 *sl;
 	int i,num;
@@ -1897,12 +1926,12 @@ DECLARE_CUSTOM_FUNCTION(StartDialog)(uint32 nDialog, uint32 nStartGroup, uint32,
  *	Sync tra idle e mpal
  */
 
-DECLARE_CUSTOM_FUNCTION(TakeOwnership)(uint32 num, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(TakeOwnership)(CORO_PARAM, uint32 num, uint32, uint32, uint32) {
 //	EnterCriticalSection(&cs[num]);
 	WaitForSingleObject(mut[num],INFINITE);
 }
 
-DECLARE_CUSTOM_FUNCTION(ReleaseOwnership)(uint32 num, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(ReleaseOwnership)(CORO_PARAM, uint32 num, uint32, uint32, uint32) {
 //	LeaveCriticalSection(&cs[num]);
 //	g_system->unlockMutex(mut[num]);
 	warning("TODO: ReleaseOwnership");
@@ -1975,46 +2004,46 @@ void ThreadFadeOutMusic(void *nMusic) {
 	_endthread();
 }
 
-DECLARE_CUSTOM_FUNCTION(FadeInSonoriz)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(FadeInSonoriz)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_beginthread(ThreadFadeInMusic, 10240, (void*)curSonoriz);
 }
 
-DECLARE_CUSTOM_FUNCTION(FadeOutSonoriz)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(FadeOutSonoriz)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	bFadeOutStop = false;
 	_beginthread(ThreadFadeOutMusic, 10240, (void *)curSonoriz);
 }
 
-DECLARE_CUSTOM_FUNCTION(FadeOutStacchetto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(FadeOutStacchetto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	bFadeOutStop = false;
 	_beginthread(ThreadFadeOutMusic, 10240, (void*)2);
 }
 
-DECLARE_CUSTOM_FUNCTION(FadeInStacchetto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(FadeInStacchetto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_beginthread(ThreadFadeInMusic, 10240, (void*)2);
 }
 
-DECLARE_CUSTOM_FUNCTION(StopSonoriz)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(StopSonoriz)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->StopMusic(curSonoriz);
 }
 
-DECLARE_CUSTOM_FUNCTION(StopStacchetto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(StopStacchetto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->StopMusic(2);
 }
 
-DECLARE_CUSTOM_FUNCTION(MuteSonoriz)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MuteSonoriz)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->SetMusicVolume(curSonoriz, 0);
 }
 
-DECLARE_CUSTOM_FUNCTION(DemuteSonoriz)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(DemuteSonoriz)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	bFadeOutStop = true;
 	_vm->SetMusicVolume(curSonoriz, 64);
 }
 
-DECLARE_CUSTOM_FUNCTION(MuteStacchetto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MuteStacchetto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->SetMusicVolume(2, 0);
 }
 
-DECLARE_CUSTOM_FUNCTION(DemuteStacchetto)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(DemuteStacchetto)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	_vm->SetMusicVolume(2, 64);
 }
 
@@ -2139,7 +2168,7 @@ void CustPlayMusic(uint32 nChannel, const char *mFN, uint32 nFX, bool bLoop, int
 	debug("End CustPlayMusic\n");
 }
 
-DECLARE_CUSTOM_FUNCTION(PlaySonoriz)(uint32 nMusic, uint32 nFX, uint32 bNoLoop, uint32) {
+DECLARE_CUSTOM_FUNCTION(PlaySonoriz)(CORO_PARAM, uint32 nMusic, uint32 nFX, uint32 bNoLoop, uint32) {
 	if (nFX == 0 || nFX == 1 || nFX==2) {
 		debug("PlaySonoriz stop fadeout\n");
 		bFadeOutStop = true;
@@ -2149,11 +2178,11 @@ DECLARE_CUSTOM_FUNCTION(PlaySonoriz)(uint32 nMusic, uint32 nFX, uint32 bNoLoop,
 	CustPlayMusic(curSonoriz, musicFiles[nMusic].name, nFX, bNoLoop ? false : true, musicFiles[nMusic].sync);
 }
 
-DECLARE_CUSTOM_FUNCTION(PlayStacchetto)(uint32 nMusic, uint32 nFX, uint32 bLoop, uint32) {
+DECLARE_CUSTOM_FUNCTION(PlayStacchetto)(CORO_PARAM, uint32 nMusic, uint32 nFX, uint32 bLoop, uint32) {
 	CustPlayMusic(2,staccFileNames[nMusic],nFX,bLoop);
 }
 
-DECLARE_CUSTOM_FUNCTION(PlayItemSfx)(uint32 nItem, uint32 nSFX, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(PlayItemSfx)(CORO_PARAM, uint32 nItem, uint32 nSFX, uint32, uint32) {
 	if (nItem== 0) {
 		Tony->PlaySfx(nSFX);
 	} else {
@@ -2165,7 +2194,7 @@ DECLARE_CUSTOM_FUNCTION(PlayItemSfx)(uint32 nItem, uint32 nSFX, uint32, uint32)
 
 
 void RestoreMusic(void) {
-	PlaySonoriz(lastMusic, 0, 0, 0);
+	PlaySonoriz(nullContext, lastMusic, 0, 0, 0);
 	if (lastTappeto != 0)
 		CustPlayMusic(4, tappetiFile[lastTappeto], 0, true);
 }
@@ -2181,49 +2210,63 @@ void LoadMusic(Common::InSaveFile *f) {
 }
 
 
-DECLARE_CUSTOM_FUNCTION(StacchettoFadeStart)(uint32 nStacc, uint32 bLoop, uint32, uint32) {
-	FadeOutSonoriz(0, 0, 0, 0);
-	MuteStacchetto(0, 0, 0, 0);
-	PlayStacchetto(nStacc, 0, bLoop, 0);
-	FadeInStacchetto(0, 0, 0, 0);	
+DECLARE_CUSTOM_FUNCTION(StacchettoFadeStart)(CORO_PARAM, uint32 nStacc, uint32 bLoop, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
+	CORO_INVOKE_4(FadeOutSonoriz, 0, 0, 0, 0);
+	CORO_INVOKE_4(MuteStacchetto, 0, 0, 0, 0);
+	CORO_INVOKE_4(PlayStacchetto, nStacc, 0, bLoop, 0);
+	CORO_INVOKE_4(FadeInStacchetto, 0, 0, 0, 0);	
+
+	CORO_END_CODE;
 }
 
-DECLARE_CUSTOM_FUNCTION(StacchettoFadeEnd)(uint32 nStacc, uint32 bLoop, uint32, uint32) {
-	FadeOutStacchetto(0, 0, 0, 0);
-	FadeInSonoriz(0, 0, 0, 0);
+DECLARE_CUSTOM_FUNCTION(StacchettoFadeEnd)(CORO_PARAM, uint32 nStacc, uint32 bLoop, uint32, uint32) {
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	CORO_BEGIN_CODE(_ctx);
+
+	CORO_INVOKE_4(FadeOutStacchetto, 0, 0, 0, 0);
+	CORO_INVOKE_4(FadeInSonoriz, 0, 0, 0, 0);
+
+	CORO_END_CODE;
 }
 
 
 
 
-DECLARE_CUSTOM_FUNCTION(MustSkipIdleStart)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MustSkipIdleStart)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	bSkipIdle = true;
 	SetEvent(hSkipIdle);
 }
 
-DECLARE_CUSTOM_FUNCTION(MustSkipIdleEnd)(uint32, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(MustSkipIdleEnd)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	bSkipIdle = false;
 	ResetEvent(hSkipIdle);
 }
 
-DECLARE_CUSTOM_FUNCTION(PatIrqFreeze)(uint32 bStatus, uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(PatIrqFreeze)(CORO_PARAM, uint32 bStatus, uint32, uint32, uint32) {
 	bPatIrqFreeze = bStatus;
 }
 
-DECLARE_CUSTOM_FUNCTION(OpenInitLoadMenu)(uint32 , uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(OpenInitLoadMenu)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Freeze();
 	_vm->OpenInitLoadMenu();
 	Unfreeze();
 }
 
-DECLARE_CUSTOM_FUNCTION(OpenInitOptions)(uint32 , uint32, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(OpenInitOptions)(CORO_PARAM, uint32, uint32, uint32, uint32) {
 	Freeze();
 	_vm->OpenInitOptions();
 	Unfreeze();
 }
 
 
-DECLARE_CUSTOM_FUNCTION(DoCredits)(uint32 nMsg, uint32 dwTime, uint32, uint32) {
+DECLARE_CUSTOM_FUNCTION(DoCredits)(CORO_PARAM, uint32 nMsg, uint32 dwTime, uint32, uint32) {
 	RMMessage msg(nMsg);
 	RMTextDialog *text;
 	HANDLE hDisable = CreateEvent(NULL, true, false, NULL);
diff --git a/engines/tony/custom.h b/engines/tony/custom.h
index 57d726f70e..a9f4ac2aab 100644
--- a/engines/tony/custom.h
+++ b/engines/tony/custom.h
@@ -67,10 +67,10 @@ typedef uint32 HWND;
 #define DECLARE_CUSTOM_FUNCTION(x)		void x
 
 #define BEGIN_CUSTOM_FUNCTION_MAP()																					\
-	static void AssignError(HWND hWnd, int num)	{ \
+	static void AssignError(int num)	{ \
 		error("Custom function %u has been already assigned!", num);		\
 	}																																					\
-	void INIT_CUSTOM_FUNCTION(HWND hWnd, LPCUSTOMFUNCTION *lpMap) \
+	void INIT_CUSTOM_FUNCTION(LPCUSTOMFUNCTION *lpMap) \
 	{																																				
 
 
@@ -78,10 +78,10 @@ typedef uint32 HWND;
 	}
 
 
-#define ASSIGN(num,func)																										\
-	if (lpMap[num]!=NULL)																											\
-		AssignError(hWnd,num);																									\
-	lpMap[num]=func;																													
+#define ASSIGN(num, func)																										\
+	if (lpMap[num] != NULL)																											\
+		AssignError(num);																									\
+	lpMap[num] = func;																													
 
 class RMTony;
 class RMPointer;
@@ -90,7 +90,7 @@ class RMLocation;
 class RMInventory;
 class RMInput;
 
-void INIT_CUSTOM_FUNCTION(HWND hWnd, LPCUSTOMFUNCTION *lpMap);
+void INIT_CUSTOM_FUNCTION(LPCUSTOMFUNCTION *lpMap);
 void SetupGlobalVars(RMTony *tony, RMPointer *ptr, RMGameBoxes *box, RMLocation *loc, RMInventory *inv, RMInput *input);
 
 #endif
diff --git a/engines/tony/module.mk b/engines/tony/module.mk
index af0b3acd2c..24e7f70557 100644
--- a/engines/tony/module.mk
+++ b/engines/tony/module.mk
@@ -1,6 +1,7 @@
 MODULE := engines/tony
 
 MODULE_OBJS := \
+	coroutine.o \
 	custom.o \
 	detection.o \
 	font.o \
@@ -10,6 +11,7 @@ MODULE_OBJS := \
 	input.o \
 	inventory.o \
 	loc.o \
+	sched.o \
 	sound.o \
 	tony.o \
 	tonychar.o \
diff --git a/engines/tony/mpal/mpal.cpp b/engines/tony/mpal/mpal.cpp
index b977feb03b..3757cdddcf 100644
--- a/engines/tony/mpal/mpal.cpp
+++ b/engines/tony/mpal/mpal.cpp
@@ -51,11 +51,12 @@
 #include "common/file.h"
 #include "common/savefile.h"
 #include "common/system.h"
+#include "tony/sched.h"
 #include "tony/tony.h"
-#include "lzo.h"	
-#include "mpal.h"
-#include "mpaldll.h"
-#include "stubs.h"
+#include "tony/mpal/lzo.h"	
+#include "tony/mpal/mpal.h"
+#include "tony/mpal/mpaldll.h"
+#include "tony/mpal/stubs.h"
 
 namespace Tony {
 
@@ -829,7 +830,10 @@ static LPITEM GetItemData(uint32 nOrdItem) {
 \****************************************************************************/
 
 void PASCAL CustomThread(LPCFCALL p) {
-	lplpFunctions[p->nCf](p->arg1, p->arg2, p->arg3, p->arg4);
+	// FIXME: Convert to proper corotuine call
+	warning("FIXME: CustomThread call");
+
+	lplpFunctions[p->nCf](nullContext, p->arg1, p->arg2, p->arg3, p->arg4);
 	GlobalFree(p);
 	ExitThread(1);
 //	_endthread();
@@ -939,50 +943,69 @@ void PASCAL ScriptThread(LPMPALSCRIPT s) {
 *
 \****************************************************************************/
 
-void PASCAL ActionThread(LPMPALITEM item) {
-	int j, k;
+void ActionThread(CORO_PARAM, const void *param) {
+	// COROUTINE
+	CORO_BEGIN_CONTEXT;
+		int j, k;
+	CORO_END_CONTEXT(_ctx);
 
-	for (j = 0;j<item->Action[item->dwRes].nCmds; j++) {
-		k=item->Action[item->dwRes].CmdNum[j];
+	const LPMPALITEM item = *(const LPMPALITEM *)param;
 
-		switch (item->Command[k].type) {
-		case 1:
-			// Funzione custom
-			lplpFunctions[item->Command[k].nCf](
-				item->Command[k].arg1,
-				item->Command[k].arg2,
-				item->Command[k].arg3,
-				item->Command[k].arg4
-			);
-			break;
+	CORO_BEGIN_CODE(_ctx);
+
+	mpalError = 0;
+	for (_ctx->j = 0; _ctx->j < item->Action[item->dwRes].nCmds; _ctx->j++) {
+		_ctx->k = item->Action[item->dwRes].CmdNum[_ctx->j];
+
+		if (item->Command[_ctx->k].type == 1) {
+			// Custom function
+			CORO_INVOKE_4(lplpFunctions[item->Command[_ctx->k].nCf],
+				item->Command[_ctx->k].arg1,
+				item->Command[_ctx->k].arg2,
+				item->Command[_ctx->k].arg3,
+				item->Command[_ctx->k].arg4
 
-		case 2:
+			);
+		} else if (item->Command[_ctx->k].type == 2) {
 			// Variable assign
 			LockVar();
-			varSetValue(item->Command[k].lpszVarName, EvaluateExpression(item->Command[k].expr));
+			varSetValue(item->Command[_ctx->k].lpszVarName, EvaluateExpression(item->Command[_ctx->k].expr));
 			UnlockVar();
 			break;
 
-		default:
+		} else {
 			mpalError = 1;
-			ExitThread(0);
-//			_endthread();
+			break;
 		}
 	}
 
 	GlobalFree(item);
-	//bExecutingAction = false;
+	
+	CORO_KILL_SELF();
 
-	ExitThread(1);
-// _endthread();
+	CORO_END_CODE;
 }
 
-void PASCAL ShutUpActionThread(HANDLE hThread) {
+/**
+ * This thread monitors a created action to detect when it ends.
+ * @remarks				Since actions can spawn sub-actions, this needs to be a
+ *						separate thread to determine when the outer action is done
+ */
+void ShutUpActionThread(CORO_PARAM, const void *param) {
+	// COROUTINE
+	CORO_BEGIN_CONTEXT;
+	CORO_END_CONTEXT(_ctx);
+
+	HANDLE hThread = *(const HANDLE *)param;
+
+	CORO_BEGIN_CODE(_ctx);
+
 	WaitForSingleObject(hThread, INFINITE);
 	bExecutingAction = false;
 
-	ExitThread(1);
-// _endthread();
+	CORO_KILL_SELF();
+
+	CORO_END_CODE;
 }
 
 /****************************************************************************\
@@ -1241,7 +1264,8 @@ void PASCAL LocationPollThread(uint32 id) {
 */
 
 	// Set idle skip on
-	lplpFunctions[200](0, 0, 0, 0);
+	// FIXME: Convert to co-routine
+	lplpFunctions[200](nullContext, 0, 0, 0, 0);
 
 	for (i = 0; i < nRealItems; i++)
 		if (MyThreads[i].nItem != 0) {
@@ -1252,7 +1276,8 @@ void PASCAL LocationPollThread(uint32 id) {
 		}
 
 	// Set idle skip off
-	lplpFunctions[201](0, 0, 0, 0);
+	// FIXME: Convert to co-routine
+	lplpFunctions[201](nullContext, 0, 0, 0, 0);
 
 	/* Abbiamo finito */
 	GlobalFree(MyThreads);
@@ -1324,7 +1349,9 @@ void PASCAL GroupThread(uint32 nGroup) {
 				switch (dialog->Command[k].type) {
 				/* Funzione custom: la richiama */
 				case 1:
+					// FIXME: Convert to co-routine
 					lplpFunctions[dialog->Command[k].nCf](
+						nullContext,
 						dialog->Command[k].arg1,
 						dialog->Command[k].arg2,
 						dialog->Command[k].arg3,
@@ -1488,8 +1515,7 @@ static HANDLE DoAction(uint32 nAction, uint32 ordItem, uint32 dwParam) {
 	LPMPALITEM item = lpmiItems;
 	int i;
 	LPMPALITEM newitem;
-	uint32 dwId;
-	HANDLE h;
+	PROCESS *h;
 
 	item+=ordItem;
 	Common::String buf = Common::String::format("Status.%u", item->nObj);
@@ -1510,7 +1536,7 @@ static HANDLE DoAction(uint32 nAction, uint32 ordItem, uint32 dwParam) {
 
 		// Ora abbiamo trova l'azione giusta che deve essere eseguita.
 		// Duplichiamo l'item corrente e copiamo la azione #i nella #0
-		newitem=(LPMPALITEM)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, sizeof(MPALITEM));
+		newitem = (LPMPALITEM)GlobalAlloc(GMEM_FIXED | GMEM_ZEROINIT, sizeof(MPALITEM));
 		if (newitem == NULL)
 			return INVALID_HANDLE_VALUE;
 
@@ -1524,12 +1550,11 @@ static HANDLE DoAction(uint32 nAction, uint32 ordItem, uint32 dwParam) {
 		// E finalmente possiamo richiamare il thread, che eseguira' l'azione
 		// 0 dell'item, e poi liberera' la memoria con la GlobalFree()
 
-/* !!! Nuova gestione dei thread
-*/
-		if ((h = CreateThread(NULL, 10240, (LPTHREAD_START_ROUTINE)ActionThread, (void *)newitem, 0, &dwId)) == NULL)
+		// !!! New thread management
+		if ((h = g_scheduler->createProcess(ActionThread, newitem)) == NULL)
 			return INVALID_HANDLE_VALUE;
 
-		if ((h = CreateThread(NULL, 10240,(LPTHREAD_START_ROUTINE)ShutUpActionThread, (void *)h, 0, &dwId)) == NULL)
+		if ((h = g_scheduler->createProcess(0, ShutUpActionThread, &h, sizeof(PROCESS *))) == NULL)
 			return INVALID_HANDLE_VALUE;
 
 /*
@@ -1543,7 +1568,7 @@ static HANDLE DoAction(uint32 nAction, uint32 ordItem, uint32 dwParam) {
 		nExecutingAction = item->nObj;
 		bExecutingAction = true;
 
-		return h;
+		return (HANDLE)h;
 	}
 
 	return INVALID_HANDLE_VALUE;
@@ -1674,7 +1699,7 @@ bool mpalInit(const char *lpszMpcFileName, const char *lpszMprFileName, LPLPCUST
  //printf("Dialog: %lu\n", sizeof(MPALDIALOG));
 
 	/* Si salva l'array delle funzioni custom */
-	lplpFunctions=lplpcfArray;
+	lplpFunctions = lplpcfArray;
 
 	/* Apre il file MPC in lettura */
 	if (!hMpc.open(lpszMpcFileName))
diff --git a/engines/tony/mpal/mpal.h b/engines/tony/mpal/mpal.h
index e66f1fdb7e..3c2e62d992 100644
--- a/engines/tony/mpal/mpal.h
+++ b/engines/tony/mpal/mpal.h
@@ -119,6 +119,7 @@
 
 #include "common/scummsys.h"
 #include "common/rect.h"
+#include "tony/coroutine.h"
 
 namespace Tony {
 
@@ -220,7 +221,7 @@ typedef ITEM *LPITEM;
 *              to perform various controls as a result of an action
 \****************************************************************************/
 
-typedef void (*LPCUSTOMFUNCTION)(uint32, uint32, uint32, uint32);
+typedef void (*LPCUSTOMFUNCTION)(CORO_PARAM, uint32, uint32, uint32, uint32);
 typedef LPCUSTOMFUNCTION *LPLPCUSTOMFUNCTION;
 
 
diff --git a/engines/tony/sched.cpp b/engines/tony/sched.cpp
new file mode 100644
index 0000000000..7f259b7a5b
--- /dev/null
+++ b/engines/tony/sched.cpp
@@ -0,0 +1,498 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Process scheduler.
+ */
+
+#include "common/textconsole.h"
+#include "common/util.h"
+#include "tony/sched.h"
+
+namespace Tony {
+
+Scheduler *g_scheduler = 0;
+
+//--------------------- FUNCTIONS ------------------------
+
+Scheduler::Scheduler() {
+	processList = NULL;
+	pFreeProcesses = NULL;
+	pCurrent = NULL;
+
+#ifdef DEBUG
+	// diagnostic process counters
+	numProcs = 0;
+	maxProcs = 0;
+#endif
+
+	pRCfunction = 0;
+
+	active = new PROCESS;
+	active->pPrevious = NULL;
+	active->pNext = NULL;
+
+	g_scheduler = this;	// FIXME HACK
+}
+
+Scheduler::~Scheduler() {
+	// Kill all running processes (i.e. free memory allocated for their state).
+	PROCESS *pProc = active->pNext;
+	while (pProc != NULL) {
+		delete pProc->state;
+		pProc->state = 0;
+		pProc = pProc->pNext;
+	}
+
+	free(processList);
+	processList = NULL;
+
+	delete active;
+	active = 0;
+}
+
+/**
+ * Kills all processes and places them on the free list.
+ */
+void Scheduler::reset() {
+
+#ifdef DEBUG
+	// clear number of process in use
+	numProcs = 0;
+#endif
+
+	if (processList == NULL) {
+		// first time - allocate memory for process list
+		processList = (PROCESS *)calloc(MAX_PROCESSES, sizeof(PROCESS));
+
+		// make sure memory allocated
+		if (processList == NULL) {
+			error("Cannot allocate memory for process data");
+		}
+
+		// fill with garbage
+		memset(processList, 'S', MAX_PROCESSES * sizeof(PROCESS));
+	}
+
+	// Kill all running processes (i.e. free memory allocated for their state).
+	PROCESS *pProc = active->pNext;
+	while (pProc != NULL) {
+		delete pProc->state;
+		pProc->state = 0;
+		pProc = pProc->pNext;
+	}
+
+	// no active processes
+	pCurrent = active->pNext = NULL;
+
+	// place first process on free list
+	pFreeProcesses = processList;
+
+	// link all other processes after first
+	for (int i = 1; i <= NUM_PROCESS; i++) {
+		processList[i - 1].pNext = (i == NUM_PROCESS) ? NULL : processList + i;
+		processList[i - 1].pPrevious = (i == 1) ? active : processList + (i - 2);
+	}
+}
+
+
+#ifdef	DEBUG
+/**
+ * Shows the maximum number of process used at once.
+ */
+void Scheduler::printStats() {
+	debug("%i process of %i used", maxProcs, NUM_PROCESS);
+}
+#endif
+
+#ifdef DEBUG
+/**
+ * Checks both the active and free process list to insure all the links are valid,
+ * and that no processes have been lost
+ */
+void Scheduler::CheckStack() {
+	Common::List<PROCESS *> pList;
+
+	// Check both the active and free process lists
+	for (int i = 0; i < 2; ++i) {
+		PROCESS *p = (i == 0) ? active : pFreeProcesses;
+
+		if (p != NULL) {
+			// Make sure the linkages are correct
+			while (p->pNext != NULL) {
+				assert(p->pNext->pPrevious == p);
+				pList.push_back(p);
+				p = p->pNext;
+			}
+			pList.push_back(p);
+		}
+	}
+
+	// Make sure all processes are accounted for
+	for (int idx = 0; idx < NUM_PROCESS; idx++) {
+		bool found = false;
+		for (Common::List<PROCESS *>::iterator i = pList.begin(); i != pList.end(); ++i) {
+			PROCESS *pTemp = *i;
+			if (*i == &processList[idx]) {
+				found = true;
+				break;
+			}
+		}
+
+		assert(found);
+	}
+}
+#endif
+
+/**
+ * Give all active processes a chance to run
+ */
+void Scheduler::schedule() {
+	// start dispatching active process list
+	PROCESS *pNext;
+	PROCESS *pProc = active->pNext;
+	while (pProc != NULL) {
+		pNext = pProc->pNext;
+
+		if (--pProc->sleepTime <= 0) {
+			// process is ready for dispatch, activate it
+			pCurrent = pProc;
+			pProc->coroAddr(pProc->state, pProc->param);
+
+			if (!pProc->state || pProc->state->_sleep <= 0) {
+				// Coroutine finished
+				pCurrent = pCurrent->pPrevious;
+				killProcess(pProc);
+			} else {
+				pProc->sleepTime = pProc->state->_sleep;
+			}
+
+			// pCurrent may have been changed
+			pNext = pCurrent->pNext;
+			pCurrent = NULL;
+		}
+
+		pProc = pNext;
+	}
+}
+
+/**
+ * Reschedules all the processes to run again this query
+ */
+void Scheduler::rescheduleAll() {
+	assert(pCurrent);
+
+	// Unlink current process
+	pCurrent->pPrevious->pNext = pCurrent->pNext;
+	if (pCurrent->pNext)
+		pCurrent->pNext->pPrevious = pCurrent->pPrevious;
+
+	// Add process to the start of the active list
+	pCurrent->pNext = active->pNext;
+	active->pNext->pPrevious = pCurrent;
+	active->pNext = pCurrent;
+	pCurrent->pPrevious = active;
+}
+
+/**
+ * If the specified process has already run on this tick, make it run
+ * again on the current tick.
+ */
+void Scheduler::reschedule(PPROCESS pReSchedProc) {
+	// If not currently processing the schedule list, then no action is needed
+	if (!pCurrent)
+		return;
+
+	if (!pReSchedProc)
+		pReSchedProc = pCurrent;
+
+	PPROCESS pEnd;
+
+	// Find the last process in the list.
+	// But if the target process is down the list from here, do nothing
+	for (pEnd = pCurrent; pEnd->pNext != NULL; pEnd = pEnd->pNext) {
+		if (pEnd->pNext == pReSchedProc)
+			return;
+	}
+
+	assert(pEnd->pNext == NULL);
+
+	// Could be in the middle of a KillProc()!
+	// Dying process was last and this process was penultimate
+	if (pReSchedProc->pNext == NULL)
+		return;
+
+	// If we're moving the current process, move it back by one, so that the next
+	// schedule() iteration moves to the now next one
+	if (pCurrent == pReSchedProc)
+		pCurrent = pCurrent->pPrevious;
+
+	// Unlink the process, and add it at the end
+	pReSchedProc->pPrevious->pNext = pReSchedProc->pNext;
+	pReSchedProc->pNext->pPrevious = pReSchedProc->pPrevious;
+	pEnd->pNext = pReSchedProc;
+	pReSchedProc->pPrevious = pEnd;
+	pReSchedProc->pNext = NULL;
+}
+
+/**
+ * Moves the specified process to the end of the dispatch queue
+ * allowing it to run again within the current game cycle.
+ * @param pGiveProc		Which process
+ */
+void Scheduler::giveWay(PPROCESS pReSchedProc) {
+	// If not currently processing the schedule list, then no action is needed
+	if (!pCurrent)
+		return;
+
+	if (!pReSchedProc)
+		pReSchedProc = pCurrent;
+
+	// If the process is already at the end of the queue, nothing has to be done
+	if (!pReSchedProc->pNext)
+		return;
+
+	PPROCESS pEnd;
+
+	// Find the last process in the list.
+	for (pEnd = pCurrent; pEnd->pNext != NULL; pEnd = pEnd->pNext)
+		;
+	assert(pEnd->pNext == NULL);
+
+
+	// If we're moving the current process, move it back by one, so that the next
+	// schedule() iteration moves to the now next one
+	if (pCurrent == pReSchedProc)
+		pCurrent = pCurrent->pPrevious;
+
+	// Unlink the process, and add it at the end
+	pReSchedProc->pPrevious->pNext = pReSchedProc->pNext;
+	pReSchedProc->pNext->pPrevious = pReSchedProc->pPrevious;
+	pEnd->pNext = pReSchedProc;
+	pReSchedProc->pPrevious = pEnd;
+	pReSchedProc->pNext = NULL;
+}
+
+/**
+ * Creates a new process.
+ *
+ * @param pid	process identifier
+ * @param CORO_ADDR	coroutine start address
+ * @param pParam	process specific info
+ * @param sizeParam	size of process specific info
+ */
+PROCESS *Scheduler::createProcess(int pid, CORO_ADDR coroAddr, const void *pParam, int sizeParam) {
+	PROCESS *pProc;
+
+	// get a free process
+	pProc = pFreeProcesses;
+
+	// trap no free process
+	assert(pProc != NULL); // Out of processes
+
+#ifdef DEBUG
+	// one more process in use
+	if (++numProcs > maxProcs)
+		maxProcs = numProcs;
+#endif
+
+	// get link to next free process
+	pFreeProcesses = pProc->pNext;
+	if (pFreeProcesses)
+		pFreeProcesses->pPrevious = NULL;
+
+	if (pCurrent != NULL) {
+		// place new process before the next active process
+		pProc->pNext = pCurrent->pNext;
+		if (pProc->pNext)
+			pProc->pNext->pPrevious = pProc;
+
+		// make this new process the next active process
+		pCurrent->pNext = pProc;
+		pProc->pPrevious = pCurrent;
+
+	} else {	// no active processes, place process at head of list
+		pProc->pNext = active->pNext;
+		pProc->pPrevious = active;
+
+		if (pProc->pNext)
+			pProc->pNext->pPrevious = pProc;
+		active->pNext = pProc;
+
+	}
+
+	// set coroutine entry point
+	pProc->coroAddr = coroAddr;
+
+	// clear coroutine state
+	pProc->state = 0;
+
+	// wake process up as soon as possible
+	pProc->sleepTime = 1;
+
+	// set new process id
+	pProc->pid = pid;
+
+	// set new process specific info
+	if (sizeParam) {
+		assert(sizeParam > 0 && sizeParam <= PARAM_SIZE);
+
+		// set new process specific info
+		memcpy(pProc->param, pParam, sizeParam);
+	}
+
+	// return created process
+	return pProc;
+}
+
+/**
+ * Kills the specified process.
+ *
+ * @param pKillProc	which process to kill
+ */
+void Scheduler::killProcess(PROCESS *pKillProc) {
+	// make sure a valid process pointer
+	assert(pKillProc >= processList && pKillProc <= processList + NUM_PROCESS - 1);
+
+	// can not kill the current process using killProcess !
+	assert(pCurrent != pKillProc);
+
+#ifdef DEBUG
+	// one less process in use
+	--numProcs;
+	assert(numProcs >= 0);
+#endif
+
+	// Free process' resources
+	if (pRCfunction != NULL)
+		(pRCfunction)(pKillProc);
+
+	delete pKillProc->state;
+	pKillProc->state = 0;
+
+	// Take the process out of the active chain list
+	pKillProc->pPrevious->pNext = pKillProc->pNext;
+	if (pKillProc->pNext)
+		pKillProc->pNext->pPrevious = pKillProc->pPrevious;
+
+	// link first free process after pProc
+	pKillProc->pNext = pFreeProcesses;
+	if (pFreeProcesses)
+		pKillProc->pNext->pPrevious = pKillProc;
+	pKillProc->pPrevious = NULL;
+
+	// make pKillProc the first free process
+	pFreeProcesses = pKillProc;
+}
+
+
+
+/**
+ * Returns a pointer to the currently running process.
+ */
+PROCESS *Scheduler::getCurrentProcess() {
+	return pCurrent;
+}
+
+/**
+ * Returns the process identifier of the specified process.
+ *
+ * @param pProc	which process
+ */
+int Scheduler::getCurrentPID() const {
+	PROCESS *pProc = pCurrent;
+
+	// make sure a valid process pointer
+	assert(pProc >= processList && pProc <= processList + NUM_PROCESS - 1);
+
+	// return processes PID
+	return pProc->pid;
+}
+
+/**
+ * Kills any process matching the specified PID. The current
+ * process cannot be killed.
+ *
+ * @param pidKill	process identifier of process to kill
+ * @param pidMask	mask to apply to process identifiers before comparison
+ * @return The number of processes killed is returned.
+ */
+int Scheduler::killMatchingProcess(int pidKill, int pidMask) {
+	int numKilled = 0;
+	PROCESS *pProc, *pPrev;	// process list pointers
+
+	for (pProc = active->pNext, pPrev = active; pProc != NULL; pPrev = pProc, pProc = pProc->pNext) {
+		if ((pProc->pid & pidMask) == pidKill) {
+			// found a matching process
+
+			// dont kill the current process
+			if (pProc != pCurrent) {
+				// kill this process
+				numKilled++;
+
+				// Free the process' resources
+				if (pRCfunction != NULL)
+					(pRCfunction)(pProc);
+
+				delete pProc->state;
+				pProc->state = 0;
+
+				// make prev point to next to unlink pProc
+				pPrev->pNext = pProc->pNext;
+				if (pProc->pNext)
+					pPrev->pNext->pPrevious = pPrev;
+
+				// link first free process after pProc
+				pProc->pNext = pFreeProcesses;
+				pProc->pPrevious = NULL;
+				pFreeProcesses->pPrevious = pProc;
+
+				// make pProc the first free process
+				pFreeProcesses = pProc;
+
+				// set to a process on the active list
+				pProc = pPrev;
+			}
+		}
+	}
+
+#ifdef DEBUG
+	// adjust process in use
+	numProcs -= numKilled;
+	assert(numProcs >= 0);
+#endif
+
+	// return number of processes killed
+	return numKilled;
+}
+
+/**
+ * Set pointer to a function to be called by killProcess().
+ *
+ * May be called by a resource allocator, the function supplied is
+ * called by killProcess() to allow the resource allocator to free
+ * resources allocated to the dying process.
+ *
+ * @param pFunc	Function to be called by killProcess()
+ */
+void Scheduler::setResourceCallback(VFPTRPP pFunc) {
+	pRCfunction = pFunc;
+}
+
+} // End of namespace Tony
diff --git a/engines/tony/sched.h b/engines/tony/sched.h
new file mode 100644
index 0000000000..9bc6d052da
--- /dev/null
+++ b/engines/tony/sched.h
@@ -0,0 +1,128 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Data structures used by the process scheduler
+ */
+
+#ifndef TONY_SCHED_H
+#define TONY_SCHED_H
+
+#include "tony/coroutine.h"
+
+namespace Tony {
+
+// the size of process specific info
+#define	PARAM_SIZE	32
+
+// the maximum number of processes
+#define	NUM_PROCESS	100
+#define MAX_PROCESSES 100
+
+typedef void (*CORO_ADDR)(CoroContext &, const void *);
+
+/** process structure */
+struct PROCESS {
+	PROCESS *pNext;	///< pointer to next process in active or free list
+	PROCESS *pPrevious;	///< pointer to previous process in active or free list
+
+	CoroContext state;		///< the state of the coroutine
+	CORO_ADDR  coroAddr;	///< the entry point of the coroutine
+
+	int sleepTime;		///< number of scheduler cycles to sleep
+	int pid;		///< process ID
+	char param[PARAM_SIZE];	///< process specific info
+};
+typedef PROCESS *PPROCESS;
+
+struct INT_CONTEXT;
+
+/**
+ * Create and manage "processes" (really coroutines).
+ */
+class Scheduler {
+public:
+	/** Pointer to a function of the form "void function(PPROCESS)" */
+	typedef void (*VFPTRPP)(PROCESS *);
+
+private:
+
+	/** list of all processes */
+	PROCESS *processList;
+
+	/** active process list - also saves scheduler state */
+	PROCESS *active;
+
+	/** pointer to free process list */
+	PROCESS *pFreeProcesses;
+
+	/** the currently active process */
+	PROCESS *pCurrent;
+
+#ifdef DEBUG
+	// diagnostic process counters
+	int numProcs;
+	int maxProcs;
+
+	void CheckStack();
+#endif
+
+	/**
+	 * Called from killProcess() to enable other resources
+	 * a process may be allocated to be released.
+	 */
+	VFPTRPP pRCfunction;
+
+
+public:
+
+	Scheduler();
+	~Scheduler();
+
+	void reset();
+
+	#ifdef	DEBUG
+	void printStats();
+	#endif
+
+	void schedule();
+	void rescheduleAll();
+	void reschedule(PPROCESS pReSchedProc = NULL);
+	void giveWay(PPROCESS pReSchedProc = NULL);
+
+	PROCESS *createProcess(int pid, CORO_ADDR coroAddr, const void *pParam, int sizeParam);
+	PROCESS *createProcess(CORO_ADDR coroAddr, const void *pParam) {
+		return createProcess(0, coroAddr, &pParam, sizeof(void *));
+	}
+	void killProcess(PROCESS *pKillProc);
+
+	PROCESS *getCurrentProcess();
+	int getCurrentPID() const;
+	int killMatchingProcess(int pidKill, int pidMask = -1);
+
+
+	void setResourceCallback(VFPTRPP pFunc);
+
+};
+
+extern Scheduler *g_scheduler;	// FIXME: Temporary global var, to be used until everything has been OOifyied
+
+} // End of namespace Tony
+
+#endif		// TONY_SCHED_H
diff --git a/engines/tony/tony.cpp b/engines/tony/tony.cpp
index cf746dc978..ab6592342d 100644
--- a/engines/tony/tony.cpp
+++ b/engines/tony/tony.cpp
@@ -26,6 +26,7 @@
 #include "common/events.h"
 #include "common/file.h"
 #include "tony/tony.h"
+#include "tony/custom.h"
 #include "tony/game.h"
 #include "tony/mpal/mpal.h"
 
@@ -67,11 +68,15 @@ Common::ErrorCode TonyEngine::Init() {
 	m_bDrawLocation = true;
 	m_startTime = g_system->getMillis();
 
+	// Reset the scheduler
+	_scheduler.reset();
+
 	// Initialise the graphics window
 	_window.Init();
 
 	// Initialise the function list
 	Common::fill(FuncList, FuncList + 300, (LPCUSTOMFUNCTION)NULL);
+	InitCustomFunctionMap();
 
 	// Initializes MPAL system, passing the custom functions list
 	Common::File f;
@@ -127,6 +132,10 @@ Common::ErrorCode TonyEngine::Init() {
 	return Common::kNoError;
 }
 
+void TonyEngine::InitCustomFunctionMap() {
+	INIT_CUSTOM_FUNCTION(FuncList);
+}
+
 /**
  * Display an error message
  */
@@ -385,6 +394,9 @@ void TonyEngine::Play(void) {
 		while (g_system->getEventManager()->pollEvent(evt))
 			;
 
+		// Call any scheduled processes
+		_scheduler.schedule();
+
   		// Call the engine to handle the next frame
 		_theEngine.DoFrame(m_bDrawLocation);
 
@@ -468,8 +480,7 @@ void TonyEngine::FreezeTime(void) {
 	m_nTimeFreezed = GetTime() - m_startTime;
 }
 
-void TonyEngine::UnfreezeTime(void)
-{
+void TonyEngine::UnfreezeTime(void) {
 	m_bTimeFreezed = false;
 }
 
diff --git a/engines/tony/tony.h b/engines/tony/tony.h
index e1526db026..1eafe54afb 100644
--- a/engines/tony/tony.h
+++ b/engines/tony/tony.h
@@ -35,6 +35,7 @@
 #include "tony/mpal/memory.h"
 #include "tony/gfxengine.h"
 #include "tony/loc.h"
+#include "tony/sched.h"
 #include "tony/utils.h"
 #include "tony/window.h"
 
@@ -80,6 +81,7 @@ private:
 	void CloseMusic();
 	bool OpenVoiceDatabase();
 	void CloseVoiceDatabase();
+	void InitCustomFunctionMap();
 protected:
 	// Engine APIs
 	virtual Common::Error run();
@@ -93,6 +95,7 @@ public:
 	Common::File _vdbFP;
 	Common::Array<VoiceHeader> _voices;
 	FPSOUND	_theSound;
+	Scheduler _scheduler;
 
 	enum DATADIR {
 		DD_BASE = 1,
@@ -140,9 +143,6 @@ public:
 	// Loop che gestisce i messaggi quando siamo in pausa
 	void PauseLoop(void);
 
-	// Carica un modulo e le sue funzioni custom
-	void InitCustomDll(LPCUSTOMFUNCTION *FuncList);
-
 	void Play();
 	void Close();
 	void Abort();
diff --git a/engines/tony/tonychar.cpp b/engines/tony/tonychar.cpp
index a2648318fe..e4f334d0e5 100644
--- a/engines/tony/tonychar.cpp
+++ b/engines/tony/tonychar.cpp
@@ -224,7 +224,7 @@ void RMTony::ExecuteAction(int nAction, int nActionItem, int nParm) {
 			}
 		}
 	} else {
-		// Esegue l'azione
+		// Perform the action
 		hThread = mpalQueryDoAction(nAction, nActionItem, 0); 
 	}