/* 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.
*
* $URL$
* $Id$
*
*/
#ifndef SCI_ENGINE_KERNEL_H
#define SCI_ENGINE_KERNEL_H
#include "common/scummsys.h"
#include "common/debug.h"
#include "common/rect.h"
#include "sci/uinput.h"
#include "sci/vocabulary.h"
namespace Sci {
struct Node; // from vm.h
struct List; // from vm.h
#define AVOIDPATH_DYNMEM_STRING "AvoidPath polyline"
//#define DEBUG_PARSER // enable for parser debugging
struct opcode {
int type;
Common::String name;
};
/* Generic description: */
typedef reg_t KernelFunc(EngineState *s, int funct_nr, int argc, reg_t *argv);
struct KernelFuncWithSignature {
KernelFunc *fun; /**< The actual function */
const char *signature; /**< KernelFunc signature */
Common::String orig_name; /**< Original name, in case we couldn't map it */
};
class Kernel {
public:
Kernel(ResourceManager *resmgr, bool isOldSci0);
~Kernel();
uint getOpcodesSize() const { return _opcodes.size(); }
const opcode &getOpcode(uint opcode) const { return _opcodes[opcode]; }
uint getSelectorNamesSize() const { return _selectorNames.size(); }
const Common::String &getSelectorName(uint selector) const { return _selectorNames[selector]; }
uint getKernelNamesSize() const { return _kernelNames.size(); }
const Common::String &getKernelName(uint number) const { return _kernelNames[number]; }
/* Determines the selector ID of a selector by its name
** (const char *) selectorName: Name of the selector to look up
** Returns : (int) The appropriate selector ID, or -1 on error
*/
int findSelector(const char *selectorName) const;
/* Detects whether a particular kernel function is required in the game
** (const char *) functionName: The name of the desired kernel function
** Returns : (bool) true if the kernel function is listed in the kernel table,
** false otherwise
*/
bool hasKernelFunction(const char *functionName) const;
// Script dissection/dumping functions
void dissectScript(int scriptNumber, Vocabulary *vocab);
void dumpScriptObject(char *data, int seeker, int objsize);
void dumpScriptClass(char *data, int seeker, int objsize);
selector_map_t _selectorMap; /**< Shortcut list for important selectors */
Common::Array<KernelFuncWithSignature> _kernelFuncs; /**< Table of kernel functions */
private:
/**
* Loads the kernel function names.
*
* This function reads the kernel function name table from resource_map,
* and fills the _kernelNames array with them.
* The resulting list has the same format regardless of the format of the
* name table of the resource (the format changed between version 0 and 1).
* @return true on success, false on failure
*/
bool loadKernelNames();
/**
* Loads the kernel selector names.
* Returns true upon success, false otherwise.
*/
bool loadSelectorNames(bool isOldSci0);
/* Maps special selectors
** Returns : (void)
*/
void mapSelectors();
/* Maps kernel functions
** Returns : (void)
*/
void mapFunctions();
/**
* Loads the opcode names (only used for debugging).
* @return true on success, false on failure
*/
bool loadOpcodes();
ResourceManager *_resmgr;
// Kernel-related lists
// List of opcodes, loaded from vocab.998. This list is only used for debugging
// purposes, as we hardcode the list of opcodes in the sci_opcodes enum (script.h)
Common::Array<opcode> _opcodes;
Common::StringList _selectorNames;
Common::StringList _kernelNames;
};
/******************** Selector functionality ********************/
enum SelectorInvocation {
kStopOnInvalidSelector = 0,
kContinueOnInvalidSelector = 1
};
#define GET_SEL32(_o_, _slc_) read_selector(s, _o_, s->_kernel->_selectorMap._slc_, __FILE__, __LINE__)
#define GET_SEL32V(_o_, _slc_) (GET_SEL32(_o_, _slc_).offset)
#define GET_SEL32SV(_o_, _slc_) ((int16)(GET_SEL32(_o_, _slc_).offset))
/* Retrieves a selector from an object
** Parameters: (reg_t) object: The address of the object which the selector should be read from
** (selector_name) selector: The selector to read
** Returns : (int16/uint16/reg_t) The selector value
** This macro halts on error. 'selector' must be a selector name registered in vm.h's
** selector_map_t and mapped in script.c.
*/
#define PUT_SEL32(_o_, _slc_, _val_) write_selector(s, _o_, s->_kernel->_selectorMap._slc_, _val_, __FILE__, __LINE__)
#define PUT_SEL32V(_o_, _slc_, _val_) write_selector(s, _o_, s->_kernel->_selectorMap._slc_, make_reg(0, _val_), __FILE__, __LINE__)
/* Writes a selector value to an object
** Parameters: (reg_t) object: The address of the object which the selector should be written to
** (selector_name) selector: The selector to read
** (int16) value: The value to write
** Returns : (void)
** This macro halts on error. 'selector' must be a selector name registered in vm.h's
** selector_map_t and mapped in script.c.
*/
#define INV_SEL(_object_, _selector_, _noinvalid_) \
s, _object_, s->_kernel->_selectorMap._selector_, _noinvalid_, funct_nr, argv, argc, __FILE__, __LINE__
/* Kludge for use with invoke_selector(). Used for compatibility with compilers that can't
** handle vararg macros.
*/
reg_t read_selector(EngineState *s, reg_t object, Selector selector_id, const char *fname, int line);
void write_selector(EngineState *s, reg_t object, Selector selector_id, reg_t value, const char *fname, int line);
int invoke_selector(EngineState *s, reg_t object, int selector_id, SelectorInvocation noinvalid, int kfunct,
StackPtr k_argp, int k_argc, const char *fname, int line, int argc, ...);
/******************** Text functionality ********************/
char *kernel_lookup_text(EngineState *s, reg_t address, int index);
/* Looks up text referenced by scripts
** Parameters: (EngineState *s): The current state
** (reg_t) address: The address to look up
** (int) index: The relative index
** Returns : (char *): The referenced text, or NULL on error.
** SCI uses two values to reference to text: An address, and an index. The address
** determines whether the text should be read from a resource file, or from the heap,
** while the index either refers to the number of the string in the specified source,
** or to a relative position inside the text.
*/
/******************** Debug functionality ********************/
bool is_object(EngineState *s, reg_t obj);
/* Checks whether a heap address contains an object
** Parameters: (EngineState *) s: The current state
** (reg_t) obj: The address to check
** Returns : (bool) true if it is an object, false otherwise
*/
/******************** Kernel function parameter macros ********************/
/* Returns the parameter value or (alt) if not enough parameters were supplied */
reg_t *kernel_dereference_reg_pointer(EngineState *s, reg_t pointer, int entries);
byte *kernel_dereference_bulk_pointer(EngineState *s, reg_t pointer, int entries);
#define kernel_dereference_char_pointer(state, pointer, entries) (char*)kernel_dereference_bulk_pointer(state, pointer, entries)
/* Dereferences a heap pointer
** Parameters: (EngineState *) s: The state to operate on
** (reg_t ) pointer: The pointer to dereference
** (int) entries: The number of values expected (for checking)
** (use 0 for strings)
** Returns : (reg_t/char *): A physical reference to the address pointed
** to, or NULL on error or if not enugh entries
** were available
** reg_t dereferenciation also assures alignedness of data.
*/
/******************** Priority macros/functions ********************/
int _find_priority_band(EngineState *s, int band);
/* Finds the position of the priority band specified
** Parameters: (EngineState *) s: State to search in
** (int) band: Band to look for
** Returns : (int) Offset at which the band starts
*/
int _find_view_priority(EngineState *s, int y);
/* Does the opposite of _find_priority_band
** Parameters: (EngineState *) s: State
** (int) y: Coordinate to check
** Returns : (int) The priority band y belongs to
*/
#define SCI0_VIEW_PRIORITY_14_ZONES(y) (((y) < s->priority_first)? 0 : (((y) >= s->priority_last)? 14 : 1\
+ ((((y) - s->priority_first) * 14) / (s->priority_last - s->priority_first))))
#define SCI0_PRIORITY_BAND_FIRST_14_ZONES(nr) ((((nr) == 0)? 0 : \
((s->priority_first) + (((nr)-1) * (s->priority_last - s->priority_first)) / 14)))
#define SCI0_VIEW_PRIORITY(y) (((y) < s->priority_first)? 0 : (((y) >= s->priority_last)? 14 : 1\
+ ((((y) - s->priority_first) * 15) / (s->priority_last - s->priority_first))))
#define SCI0_PRIORITY_BAND_FIRST(nr) ((((nr) == 0)? 0 : \
((s->priority_first) + (((nr)-1) * (s->priority_last - s->priority_first)) / 15)))
/******************** Dynamic view list functions ********************/
Common::Rect set_base(EngineState *s, reg_t object);
/* Determines the base rectangle of the specified view object
** Parameters: (EngineState *) s: The state to use
** (reg_t) object: The object to set
** Returns : (abs_rect) The absolute base rectangle
*/
extern Common::Rect get_nsrect(EngineState *s, reg_t object, byte clip);
/* Determines the now-seen rectangle of a view object
** Parameters: (EngineState *) s: The state to use
** (reg_t) object: The object to check
** (byte) clip: Flag to determine wheter priority band
** clipping should be performed
** Returns : (abs_rect) The absolute rectangle describing the
** now-seen area.
*/
void _k_dyn_view_list_prepare_change(EngineState *s);
/* Removes all views in anticipation of a new window or text */
void _k_dyn_view_list_accept_change(EngineState *s);
/* Redraws all views after a new window or text was added */
/******************** Misc functions ********************/
void process_sound_events(EngineState *s); /* Get all sound events, apply their changes to the heap */
Node *lookup_node(EngineState *s, reg_t addr);
/* Resolves an address into a list node
** Parameters: (EngineState *) s: The state to operate on
** (reg_t) addr: The address to resolve
** Returns : (Node *) The list node referenced, or NULL on error
*/
List *lookup_list(EngineState *s, reg_t addr);
/* Resolves a list pointer to a list
** Parameters: (EngineState *) s: The state to operate on
** (reg_t) addr: The address to resolve
** Returns : (List *) The list referenced, or NULL on error
*/
/******************** Constants ********************/
/* Maximum length of a savegame name (including terminator character) */
#define SCI_MAX_SAVENAME_LENGTH 0x24
/* Flags for the signal selector */
#define _K_VIEW_SIG_FLAG_STOP_UPDATE 0x0001
#define _K_VIEW_SIG_FLAG_UPDATED 0x0002
#define _K_VIEW_SIG_FLAG_NO_UPDATE 0x0004
#define _K_VIEW_SIG_FLAG_HIDDEN 0x0008
#define _K_VIEW_SIG_FLAG_FIX_PRI_ON 0x0010
#define _K_VIEW_SIG_FLAG_ALWAYS_UPDATE 0x0020
#define _K_VIEW_SIG_FLAG_FORCE_UPDATE 0x0040
#define _K_VIEW_SIG_FLAG_REMOVE 0x0080
#define _K_VIEW_SIG_FLAG_FROZEN 0x0100
#define _K_VIEW_SIG_FLAG_IS_EXTRA 0x0200
#define _K_VIEW_SIG_FLAG_HIT_OBSTACLE 0x0400
#define _K_VIEW_SIG_FLAG_DOESNT_TURN 0x0800
#define _K_VIEW_SIG_FLAG_NO_CYCLER 0x1000
#define _K_VIEW_SIG_FLAG_IGNORE_HORIZON 0x2000
#define _K_VIEW_SIG_FLAG_IGNORE_ACTOR 0x4000
#define _K_VIEW_SIG_FLAG_DISPOSE_ME 0x8000
#define _K_VIEW_SIG_FLAG_STOPUPD 0x20000000 /* View has been stop-updated */
/* Sound status */
#define _K_SOUND_STATUS_STOPPED 0
#define _K_SOUND_STATUS_INITIALIZED 1
#define _K_SOUND_STATUS_PAUSED 2
#define _K_SOUND_STATUS_PLAYING 3
/* Kernel optimization flags */
#define KERNEL_OPT_FLAG_GOT_EVENT (1<<0)
#define KERNEL_OPT_FLAG_GOT_2NDEVENT (1<<1)
/******************** Kernel functions ********************/
// New kernel functions
reg_t kStrLen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetFarText(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kReadNumber(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kStrCat(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kStrCmp(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetSynonyms(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kLock(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kPalette(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNumCels(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNumLoops(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDrawCel(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCoordPri(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kPriCoord(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kShakeScreen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetCursor(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMoveCursor(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kShow(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kPicNotValid(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kOnControl(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDrawPic(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetPort(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetPort(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNewWindow(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDisposeWindow(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCelWide(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCelHigh(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetJump(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDirLoop(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDoAvoider(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetAngle(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetDistance(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kRandom(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAbs(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSqrt(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kTimesSin(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kTimesCos(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCosMult(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSinMult(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kTimesTan(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kTimesCot(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCosDiv(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSinDiv(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kValidPath(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFOpen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFPuts(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFGets(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFClose(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMapKeyToDir(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGlobalToLocal(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kLocalToGlobal(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kWait(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kRestartGame(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDeviceInfo(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetEvent(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCheckFreeSpace(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFlushResources(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetSaveFiles(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetDebug(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCheckSaveGame(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSaveGame(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kRestoreGame(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFileIO(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetTime(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kHaveMouse(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kJoystick(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGameIsRestarting(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetCWD(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSort(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kStrEnd(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMemory(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAvoidPath(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kParse(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSaid(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kStrCpy(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kStrAt(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kEditControl(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDrawControl(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kHiliteControl(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kClone(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDisposeClone(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kCanBeHere(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetNowSeen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kInitBresen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDoBresen(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kBaseSetter(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAddToPic(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAnimate(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDisplay(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGraph(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFormat(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDoSound(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAddMenu(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetMenu(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetMenu(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDrawStatus(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDrawMenuBar(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMenuSelect(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kLoad(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kUnLoad(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kScriptID(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDisposeScript(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kIsObject(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kRespondsTo(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNewList(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDisposeList(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNewNode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFirstNode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kLastNode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kEmptyList(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNextNode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kPrevNode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kNodeValue(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAddAfter(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAddToFront(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kAddToEnd(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kFindKey(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDeleteKey(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMemoryInfo(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kGetSaveDir(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kTextSize(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kIsItSkip(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kMessage(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDoAudio(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kDoSync(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kResCheck(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetQuitStr(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kShowMovie(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t kSetVideoMode(EngineState *s, int funct_nr, int argc, reg_t *argv);
reg_t k_Unknown(EngineState *s, int funct_nr, int argc, reg_t *argv);
// The Unknown/Unnamed kernel function
reg_t kstub(EngineState *s, int funct_nr, int argc, reg_t *argv);
// for unimplemented kernel functions
reg_t kNOP(EngineState *s, int funct_nr, int argc, reg_t *argv);
// for kernel functions that don't do anything
reg_t kFsciEmu(EngineState *s, int funct_nr, int argc, reg_t *argv);
// Emulating "old" kernel functions on the heap
} // End of namespace Sci
#endif // SCI_ENGIENE_KERNEL_H