started to merge in Chrilith's PalmOS port

svn-id: r7219

14 files changed, 814 insertions, 0 deletions

diff --git a/backends/PalmOS/Src/missing/_stdio.cpp b/backends/PalmOS/Src/missing/_stdio.cpp
new file mode 100644
index 0000000000..5d22b04bbc
--- /dev/null
+++ b/backends/PalmOS/Src/missing/_stdio.cpp
@@ -0,0 +1,344 @@
+#include "stdio.h"
+#include "extend.h"
+///////////////////////////////////////////////////////////////////////////////
+//FileRef gLogFile;
+
+static void DrawStatus(Boolean show)
+{
+	UInt8 x,y;
+	UInt8 *screen = (UInt8 *)(BmpGetBits(WinGetBitmap(WinGetDisplayWindow())));
+	UInt8 color = (show? gVars->indicator.on : gVars->indicator.off);
+
+	if (gVars->screenLocked)
+		if (screen == gVars->flipping.pageAddr1)
+			screen = gVars->flipping.pageAddr2;
+		else
+			screen = gVars->flipping.pageAddr1;
+
+	screen += 320 + 305;
+	for(y=0;y<3;y++)
+	{
+		for(x=0;x<14;x++)
+			screen[x] = color;
+		screen += 319;
+	}
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt16 fclose(FileRef *stream)
+{
+	Err error = VFSFileClose(*stream);
+	
+	if (error == errNone)
+		MemPtrFree(stream);
+
+#ifdef DEBUG
+	FrmCustomAlert(FrmWarnAlert,"error fclose",0,0);
+#endif
+	return error;
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt16 feof(FileRef *stream)
+{
+	Err error = VFSFileEOF(*stream);
+
+#ifdef DEBUG
+		switch (error)
+		{
+			case vfsErrFileEOF:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFileEOF",0,0);
+				break;
+			case expErrNotOpen:
+				FrmCustomAlert(FrmWarnAlert,"expErrNotOpen",0,0);
+				break;
+			case vfsErrFileBadRef:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFileBadRef",0,0);
+				break;
+			case vfsErrIsADirectory:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrIsADirectory",0,0);
+				break;
+			case vfsErrNoFileSystem:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrNoFileSystem",0,0);
+				break;
+		}
+#endif
+
+	return error;
+}
+///////////////////////////////////////////////////////////////////////////////
+Char *fgets(Char *s, UInt32 n, FileRef *stream)
+{
+	UInt32 numBytesRead;
+	DrawStatus(true);
+	Err error = VFSFileRead(*stream, n, s, &numBytesRead);
+	DrawStatus(false);
+	if (error == errNone || error == vfsErrFileEOF) {
+		UInt32 reset = 0;
+		Char *endLine = StrChr(s, '\n');
+		
+		if (endLine >= s) {
+			reset = (endLine - s);
+			s[reset] = 0;
+			reset = numBytesRead - (reset + 1);
+			VFSFileSeek(*stream, vfsOriginCurrent, -reset);
+		}
+	
+		return s;
+	}
+#ifdef DEBUG
+		switch (error)
+		{
+			case expErrNotOpen:
+				FrmCustomAlert(FrmWarnAlert,"expErrNotOpen",0,0);
+				break;
+			case vfsErrFileBadRef:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFileBadRef",0,0);
+				break;
+			case vfsErrFileEOF:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFileEOF",0,0);
+				break;
+			case vfsErrFilePermissionDenied:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFilePermissionDenied",0,0);
+				break;
+			case vfsErrIsADirectory:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrIsADirectory",0,0);
+				break;
+			case vfsErrNoFileSystem:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrNoFileSystem",0,0);
+				break;
+		}
+#endif
+
+	return NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+FileRef *fopen(const Char *filename, const Char *type)
+{
+	Err err;
+	UInt16 openMode;
+	FileRef *fileRefP = (FileRef *)MemPtrNew(sizeof(FileRef *));
+	
+	if (StrCompare(type,"r")==0)
+		openMode = vfsModeRead;
+	else if (StrCompare(type,"rb")==0)
+		openMode = vfsModeRead;
+	else if (StrCompare(type,"w")==0)
+		openMode = vfsModeCreate|vfsModeWrite;
+	else if (StrCompare(type,"wb")==0)
+		openMode = vfsModeCreate|vfsModeWrite;
+	else
+		openMode = vfsModeReadWrite;
+
+	if (openMode & vfsModeRead) {
+		// if read file :
+		// first try to load from the specfied card
+		err = VFSFileOpen (gVars->volRefNum, filename, openMode, fileRefP);
+		//if err (not found ?) parse each avalaible card for the specified file
+		if (err) {
+			UInt16 volRefNum;
+			UInt32 volIterator = vfsIteratorStart;
+			while (volIterator != vfsIteratorStop) {
+				err = VFSVolumeEnumerate(&volRefNum, &volIterator);
+
+				if (!err) {
+					err = VFSFileOpen (volRefNum, filename, openMode, fileRefP);
+					if (!err)
+						return fileRefP;
+				}
+			}
+		} else {
+			return fileRefP;
+		}
+	} else {
+		// if write file :
+		// use only the specified card
+		// FIXME : vfsModeCreate|vfsModeWrite will failed on OS3.5 Clié
+		err = VFSFileDelete(gVars->volRefNum, filename);	// delete it if exists
+		err = VFSFileCreate(gVars->volRefNum, filename);
+		openMode = vfsModeWrite;
+		if (!err) {
+			err = VFSFileOpen (gVars->volRefNum, filename, openMode, fileRefP);
+			if (!err)
+				return fileRefP;
+		}
+	}
+
+#ifdef DEBUG
+	else
+	{
+		switch (err)
+		{
+			case expErrCardReadOnly:
+				FrmCustomAlert(FrmWarnAlert,"expErrCardReadOnly",0,0);
+				break;
+			case expErrNotOpen:
+				FrmCustomAlert(FrmWarnAlert,"expErrNotOpen",0,0);
+				break;
+			case vfsErrBadName:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrBadName",0,0);
+				break;
+			case vfsErrFileNotFound:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFileNotFound",0,0);
+				break;
+			case vfsErrFilePermissionDenied:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrFilePermissionDenied",0,0);
+				break;
+			case vfsErrVolumeBadRef:
+				FrmCustomAlert(FrmWarnAlert,"vfsErrVolumeBadRef",0,0);
+				break;
+			default:
+				FrmCustomAlert(FrmWarnAlert,"unknow",0,0);
+				break;
+		}
+	}
+#endif
+
+	MemPtrFree(fileRefP); // prevent memory leak
+	return NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt32 fread(void *ptr, UInt32 size, UInt32 nitems, FileRef *stream)
+{
+	UInt32 numBytesRead;
+	DrawStatus(true);
+	Err error = VFSFileRead(*stream, size*nitems, ptr, &numBytesRead);
+	DrawStatus(false);
+	if (error == errNone || error == vfsErrFileEOF)
+		return (UInt32)(numBytesRead/size);
+
+#ifdef DEBUG
+		switch (error)
+		{
+			case expErrNotOpen:
+				FrmCustomAlert(FrmWarn,"expErrNotOpen",0,0);
+				break;
+			case vfsErrFileBadRef:
+				FrmCustomAlert(FrmWarn,"vfsErrFileBadRef",0,0);
+				break;
+			case vfsErrFileEOF:
+				FrmCustomAlert(FrmWarn,"vfsErrFileEOF",0,0);
+				break;
+			case vfsErrFilePermissionDenied:
+				FrmCustomAlert(FrmWarn,"vfsErrFilePermissionDenied",0,0);
+				break;
+			case vfsErrIsADirectory:
+				FrmCustomAlert(FrmWarn,"vfsErrIsADirectory",0,0);
+				break;
+			case vfsErrNoFileSystem:
+				FrmCustomAlert(FrmWarn,"vfsErrNoFileSystem",0,0);
+				break;
+		}
+#endif
+	return 0;
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt32 fwrite(const void *ptr, UInt32 size, UInt32 nitems, FileRef *stream)
+{
+	UInt32 numBytesWritten;
+	DrawStatus(true);
+	Err error = VFSFileWrite(*stream, size*nitems, ptr, &numBytesWritten);
+	DrawStatus(false);
+
+	if (error == errNone || error == vfsErrFileEOF)
+		return (UInt32)(numBytesWritten/size);
+
+	return NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+Int32 fseek(FileRef *stream, Int32 offset, Int32 whence)
+{
+	Err error = VFSFileSeek(*stream, whence, offset);
+	return error;
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt32 ftell(FileRef *stream)
+{
+	Err e;
+	UInt32 filePos;
+
+	e = VFSFileTell(*stream,&filePos);
+	if (e != errNone)
+		return e;
+	
+	return filePos;
+}
+///////////////////////////////////////////////////////////////////////////////
+UInt16 fprintf(FileRef *stream, const Char *format, ...)
+{
+	if (!*stream)
+		return 0;
+
+	UInt32 numBytesWritten;
+	Char buf[256];
+	va_list va;
+
+	va_start(va, format);
+	vsprintf(buf, format, va);
+	va_end(va);
+
+	VFSFileWrite (*stream, StrLen(buf), buf, &numBytesWritten);
+	return numBytesWritten;
+}
+///////////////////////////////////////////////////////////////////////////////
+Int16 printf(const Char *format, ...)
+{
+	if (!*stdout)
+		return 0;
+
+	UInt32 numBytesWritten;
+	Char buf[256];
+//	Char *buf = (Char *)MemPtrNew(256);
+	va_list va;
+
+	va_start(va, format);
+	vsprintf(buf, format, va);
+	va_end(va);
+
+	VFSFileWrite (*stdout, StrLen(buf), buf, &numBytesWritten);
+//	MemPtrFree(buf);
+	return numBytesWritten;
+}
+///////////////////////////////////////////////////////////////////////////////
+Int16 sprintf(Char* s, const Char* formatStr, ...)
+{
+	Char buf[256];
+//	Char *buf = (Char *)MemPtrNew(256);
+	Int16 count;
+	va_list va;
+
+	va_start(va, formatStr);
+	count = vsprintf(buf, formatStr, va);
+	va_end(va);
+	
+	StrCopy(s,buf);
+//	MemPtrFree(buf);
+	return count;
+}
+///////////////////////////////////////////////////////////////////////////////
+Int16 vsprintf(Char* s, const Char* formatStr, _Palm_va_list argParam)
+{
+	Char format[256];
+	// TODO : need a better modifier
+	StrCopy(format,formatStr);
+	StrReplace(format, 256, "%ld",	"%d");
+	StrReplace(format, 256, "%li",	"%i");
+	StrReplace(format, 256, "%lx",	"%x");
+	StrReplace(format, 256, "%lx",	"%X");
+	StrReplace(format, 256, "%2ld",	"%2d");
+	StrReplace(format, 256, "%03ld","%.3d");
+	StrReplace(format, 256, "%02ld","%.2d");
+	StrReplace(format, 256, "%01ld","%.1d");
+	StrReplace(format, 256, "%02ld","%02d");
+
+	StrReplace(format, 256, "%2ld","%2d");
+	StrReplace(format, 256, "%3ld","%3d");
+	StrReplace(format, 256, "%4ld","%4d");
+	StrReplace(format, 256, "%5ld","%5d");
+	StrReplace(format, 256, "%6ld","%6d");
+	StrReplace(format, 256, "%02lx","%02x");
+
+	return StrVPrintF(s, format, argParam);;
+}
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
diff --git a/backends/PalmOS/Src/missing/_stdlib.cpp b/backends/PalmOS/Src/missing/_stdlib.cpp
new file mode 100644
index 0000000000..916987a5ca
--- /dev/null
+++ b/backends/PalmOS/Src/missing/_stdlib.cpp
@@ -0,0 +1,213 @@
+#include "stdlib.h"
+#include "MemGlue.h"
+///////////////////////////////////////////////////////////////////////////////
+/*void qsort(void *base, UInt32 nmemb, UInt32 size, ComparF *compar) {
+	
+	SysQSort(base, nmemb, size, compar);
+}*/
+///////////////////////////////////////////////////////////////////////////////
+void *bsearch(const void *key, const void *base, UInt32 nmemb, 
+				UInt32 size, int (*compar)(const void *, const void *)) {
+	UInt32 i;
+
+	for (i=0; i<nmemb; i++) 
+		if (compar(key, (void*)((UInt32)base + size * i)) == 0)
+			return (void*)((UInt32)base + size * i);
+	return NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+static DmOpenRef gExtMemory = NULL;
+
+static UInt16 MemFindHeapID(UInt32 size)
+{
+	UInt32  nFree, maxChunk ;
+	UInt16 maxCards = 1;	//MemNumCards(); process only first card for now
+	UInt16 heapID = -1;		// no heap avaliable
+
+	UInt16 cardNo;
+	UInt16 maxHeaps, heapIndex;
+
+	for (cardNo = 0; cardNo < maxCards; cardNo++)
+	{
+		if (MemNumRAMHeaps(cardNo) > 0)
+		{
+			maxHeaps =  MemNumHeaps(cardNo);
+			for (heapIndex = 0; heapIndex < maxHeaps; heapIndex++)
+			{
+				// Obtain the ID of the heap.
+				heapID = MemHeapID(cardNo, heapIndex);
+				
+				if (!(MemHeapFlags(heapID) & memHeapFlagReadOnly))
+				{
+					MemHeapFreeBytes( heapID, &nFree, &maxChunk );
+					if (maxChunk > size)
+						return heapID;
+				}
+			}
+		}
+	}
+
+	return heapID;
+}
+
+void MemExtInit()
+{
+	if (!gExtMemory)
+	{
+		LocalID localID = DmFindDatabase(0, "ScummVM-Memory");
+		if (localID) DmDeleteDatabase(0, localID);
+		
+		if (DmCreateDatabase (0, "ScummVM-Memory", 'ScVM', 'DATA', false) != errNone)
+			return;
+
+		localID = DmFindDatabase(0, "ScummVM-Memory");
+		gExtMemory = DmOpenDatabase(0, localID, dmModeReadWrite|dmModeExclusive);
+	}
+}
+
+void MemExtCleanup()
+{
+	if (gExtMemory) {
+		DmCloseDatabase(gExtMemory);
+		LocalID localID = DmFindDatabase(0, "ScummVM-Memory");
+		if (localID)
+			DmDeleteDatabase(0, localID);
+	}
+}
+//#define USE_EXTENDEDMEM
+#ifdef USE_EXTENDEDMEM
+
+MemPtr calloc(UInt32 nelem, UInt32 elsize)
+{
+	UInt32 size = nelem*elsize;
+	MemPtr newP = NULL;
+	UInt16 heapID = MemFindHeapID(size);
+
+	if (heapID != NO_HEAP_FOUND)
+	{
+		if (MemHeapDynamic(heapID) && size < 65536-8) // 8 = chunk header size
+			newP = MemPtrNew(size);
+		else
+		{
+			SysAppInfoPtr appInfoP;
+			UInt16 ownerID, large, nmovable;
+			UInt16 attr;
+
+			ownerID = ((SysAppInfoPtr)SysGetAppInfo(&appInfoP, &appInfoP))->memOwnerID; 
+			large	= ((size > 65536-8) ? memNewChunkFlagAllowLarge : 0);
+			nmovable= (MemHeapDynamic(heapID) ? memNewChunkFlagNonMovable : memNewChunkFlagPreLock);
+			attr	=	ownerID|large|nmovable;
+			
+			//MEMORY_RESERVE_ACCESS
+			newP = MemChunkNew(heapID, size, attr);
+			//MEMORY_RELEASE_ACCESS
+
+			if (newP && MemPtrDataStorage(newP)) {		// if storage heap ?
+				if (!gExtMemory) {						// if memory DB doesn't exist
+					MemChunkFree(newP);
+					return NULL;
+				}
+
+				UInt16 index = dmMaxRecordIndex;	// used for record purpose
+				MemHandle newH = MemPtrRecoverHandle(newP);					// exists
+				if (DmAttachRecord(gExtMemory, &index, newH, NULL) != errNone) // attach to DB
+				{
+					MemChunkFree(newP);	// error
+					return NULL;
+				}
+			}
+		}
+	}
+
+	if (newP)
+		MemSet(newP,size,0);
+
+	return newP;
+}
+
+#else
+
+MemPtr calloc(UInt32 nelem, UInt32 elsize)
+{
+	UInt32 size = nelem*elsize;
+	MemPtr newP = NULL;
+
+/*	if (size < 65536-8) 		// 8 = chunk header size
+		newP = MemPtrNew(size);
+	else*/
+/*	{
+		SysAppInfoPtr appInfoP;
+		UInt16 ownerID;
+		UInt16 attr;
+
+		ownerID = ((SysAppInfoPtr)SysGetAppInfo(&appInfoP, &appInfoP))->memOwnerID; 
+		attr	=	ownerID|memNewChunkFlagAllowLarge|memNewChunkFlagNonMovable;
+
+		newP = MemChunkNew(0, size, attr);
+	}
+*/
+	newP = MemGluePtrNew(size);
+
+	if (newP)
+		MemSet(newP,size,0);
+
+	return newP;
+}
+
+#endif
+///////////////////////////////////////////////////////////////////////////////
+#ifdef USE_EXTENDEDMEM
+Err free(MemPtr memP)
+{
+	Err err = memErrInvalidParam;
+
+	if (!memP)
+		return err;
+
+	if (MemPtrDataStorage(memP)) {		// if storage heap ?
+		if (gExtMemory) {				// if memory DB exists
+			DmOpenRef where;
+			MemHandle newH = MemPtrRecoverHandle(memP);
+			UInt16 index = DmSearchRecord(newH, &where);
+			err = DmRemoveRecord(gExtMemory, index);
+		}
+	}
+	else
+		err = MemChunkFree(memP);
+
+	return err;
+}
+#else
+Err free(MemPtr memP)
+{
+	if (memP)
+		return MemPtrFree(memP);
+	
+	return memErrInvalidParam;
+}
+#endif
+///////////////////////////////////////////////////////////////////////////////
+MemPtr realloc(MemPtr oldP, UInt32 size)
+{
+	
+	if (oldP != NULL)
+		if (MemPtrResize(oldP,size) == 0)
+			return oldP;
+
+	MemPtr	newP = MemPtrNew(size);
+	
+	if (oldP!=NULL)
+	{
+		MemMove(newP,oldP,MemPtrSize(oldP));
+		MemPtrFree(oldP);
+	}	
+	return newP;
+}
+///////////////////////////////////////////////////////////////////////////////
+void exit(Int16 status)
+{
+	// need to change this
+	EventType event;
+	event.eType = appStopEvent;
+	EvtAddEventToQueue (&event);
+}
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/_string.cpp b/backends/PalmOS/Src/missing/_string.cpp
new file mode 100644
index 0000000000..6f7ed9bb77
--- /dev/null
+++ b/backends/PalmOS/Src/missing/_string.cpp
@@ -0,0 +1,86 @@
+#include "string.h"
+
+Char *StrTokNext;
+///////////////////////////////////////////////////////////////////////////////
+Char *strtok(Char *str, const Char *sep)
+{
+	Char	*position = NULL,
+			*found,
+			*end;
+
+	UInt16	loop = 0,
+			chars= StrLen(sep);
+
+	str			= (str)?(str):(StrTokNext);
+	StrTokNext	= NULL;
+
+	if (!str)
+		return NULL;
+
+	end = str+StrLen(str);
+
+	while (loop<chars)
+	{
+		found = StrChr(str,sep[loop]);
+		loop++;
+
+		if (found == str)
+		{
+			str++;
+			loop = 0;
+		}
+		else if (position == NULL || position > found)
+			position = found;
+	}
+
+	if (position == NULL)
+		if (str==end)
+			return NULL;
+		else
+			return str;
+
+	position[0] = 0;
+	StrTokNext	= position+1;
+
+	return str;
+}
+///////////////////////////////////////////////////////////////////////////////
+Char *strpbrk(const Char *s1, const Char *s2)
+{
+	Char *found;
+	UInt32 n;
+	
+	for (n=0; n <= StrLen(s2); n++) {
+		found = StrChr(s1, s2[n]);
+		if (found)
+			return found;
+	}
+	
+	return NULL;
+}
+///////////////////////////////////////////////////////////////////////////////
+Char *strrchr(const Char *s, int c)
+{
+	UInt32 chr;
+	UInt32 n = StrLen(s);
+
+	for(chr = n; chr >= 0; chr--)
+		if ( *((UInt8 *)s+chr) == c)
+			return (Char *)(s+chr);
+
+	return NULL;
+} 
+///////////////////////////////////////////////////////////////////////////////
+Char *strdup(const Char *s1)
+{
+	Char* buf = (Char *)MemPtrNew(StrLen(s1)+1);
+
+	if(buf)
+		StrCopy(buf, s1);
+
+	return buf;
+}
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
diff --git a/backends/PalmOS/Src/missing/_time.cpp b/backends/PalmOS/Src/missing/_time.cpp
new file mode 100644
index 0000000000..afac9bce10
--- /dev/null
+++ b/backends/PalmOS/Src/missing/_time.cpp
@@ -0,0 +1,38 @@
+#include "time.h"
+
+// ignore GMT, only device time
+
+time_t time(time_t *tloc) {
+	UInt32 secs = TimGetSeconds();					// since 1/1/1904 12AM.
+	DateTimeType Epoch = {0, 0, 0, 1, 1, 1970, 0};	// form 1/1/1904 12AM to 1/1/1970 12AM
+
+	secs -= TimDateTimeToSeconds (&Epoch);
+	
+	if (tloc)
+		*tloc = secs;
+	
+	return (secs);
+}
+
+
+struct tm *localtime(const time_t *timer) {
+	static struct tm tmDate;
+
+	DateTimeType dt;
+	UInt32 secs = *timer;
+	DateTimeType Epoch = {0, 0, 0, 1, 1, 1970, 0};	// form 1/1/1904 12AM to 1/1/1970 12AM
+	// timer supposed to be based on Epoch
+	secs += TimDateTimeToSeconds(&Epoch);
+
+	TimSecondsToDateTime (secs, &dt);
+	
+	tmDate.tm_sec	= dt.second;
+	tmDate.tm_min	= dt.minute;
+	tmDate.tm_hour	= dt.hour;
+	tmDate.tm_mday	= dt.day;
+	tmDate.tm_mon	= dt.month;
+	tmDate.tm_year	= dt.year;
+	tmDate.tm_wday	= dt.weekDay;
+	
+	return &tmDate;
+}
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/_unistd.cpp b/backends/PalmOS/Src/missing/_unistd.cpp
new file mode 100644
index 0000000000..bf4e0da0d9
--- /dev/null
+++ b/backends/PalmOS/Src/missing/_unistd.cpp
@@ -0,0 +1,14 @@
+#include "unistd.h"
+#include "extend.h"	// for SCUMMVM_SAVEPATH
+
+
+// currently used only to retreive savepath
+Char *getcwd(Char *buf, UInt32 size) {
+	Char *copy = buf;
+	
+	if (!copy)
+		copy = (Char *)MemPtrNew(StrLen(SCUMMVM_SAVEPATH)); // this may never occured
+	
+	StrCopy(copy, SCUMMVM_SAVEPATH);
+	return copy;
+}
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/assert.h b/backends/PalmOS/Src/missing/assert.h
new file mode 100644
index 0000000000..5f021cd6d3
--- /dev/null
+++ b/backends/PalmOS/Src/missing/assert.h
@@ -0,0 +1 @@
+#define assert(a)
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/fcntl.h b/backends/PalmOS/Src/missing/fcntl.h
new file mode 100644
index 0000000000..a6b5294568
--- /dev/null
+++ b/backends/PalmOS/Src/missing/fcntl.h
@@ -0,0 +1 @@
+/* nothing */
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/math.h b/backends/PalmOS/Src/missing/math.h
new file mode 100644
index 0000000000..b527ffcf42
--- /dev/null
+++ b/backends/PalmOS/Src/missing/math.h
@@ -0,0 +1 @@
+#include "mathlib.h"
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/stdio.h b/backends/PalmOS/Src/missing/stdio.h
new file mode 100644
index 0000000000..5a42917d04
--- /dev/null
+++ b/backends/PalmOS/Src/missing/stdio.h
@@ -0,0 +1,34 @@
+#include <PalmOS.h>
+#include <VFSMgr.h>
+#include <stdarg.h>
+#include "globals.h"
+
+//extern UInt16	gVolRefNum;
+//extern FileRef	gLogFile;
+
+typedef FileRef FILE;
+
+#define stdin		0
+#define stdout		(&gVars->logFile)
+#define stderr		(&gVars->logFile)
+
+#define clearerr(a)
+#define fflush(a)
+#define vsnprintf(a,b,c,d)	vsprintf(a,c,d)
+
+#define	SEEK_SET			vfsOriginBeginning 
+#define	SEEK_CUR			vfsOriginCurrent  
+#define	SEEK_END			vfsOriginEnd
+
+UInt16 fclose(FileRef *stream);
+UInt16 feof(FileRef *stream);
+Char *fgets(Char *s, UInt32 n, FileRef *stream);
+FileRef *fopen(const Char *filename, const Char *type);
+UInt32 fread(void *ptr, UInt32 size, UInt32 nitems, FileRef *stream);
+UInt32 fwrite(const void *ptr, UInt32 size, UInt32 nitems, FileRef *stream);
+Int32 fseek(FileRef *stream, Int32 offset, Int32 whence);
+UInt32 ftell(FileRef *stream);
+UInt16 fprintf(FileRef *stream, const Char *format, ...);
+Int16 printf(const Char* formatStr, ...);
+Int16 sprintf(Char* s, const Char* formatStr, ...);
+Int16 vsprintf(Char* s, const Char* formatStr, _Palm_va_list argParam);
diff --git a/backends/PalmOS/Src/missing/stdlib.h b/backends/PalmOS/Src/missing/stdlib.h
new file mode 100644
index 0000000000..b0d0145be0
--- /dev/null
+++ b/backends/PalmOS/Src/missing/stdlib.h
@@ -0,0 +1,38 @@
+#ifndef STDLIB_H
+#define STDLIB_H
+
+#include <PalmOS.h>
+#include "mathlib.h"
+
+//#define memNewChunkFlagNonMovable	0x0200 
+#define memNewChunkFlagAllowLarge	0x1000  // this is not in the sdk *g* 
+#define memHeapFlagReadOnly			0x0001
+
+#define	NO_HEAP_FOUND				-1
+
+SysAppInfoPtr SysGetAppInfo(SysAppInfoPtr *uiAppPP, SysAppInfoPtr *actionCodeAppPP) 
+							SYS_TRAP(sysTrapSysGetAppInfo); 
+
+
+#define atoi				StrAToI
+#define atol				StrAToI
+#define abs(a)				((a) < 0 ? -(a) : (a))
+//#define abs					fabs
+#define	malloc(a)			calloc(a,1)
+//#define free				MemPtrFree
+#define strtol(a,b,c)		StrAToI(a)
+#define qsort(a,b,c,d)
+#define rand()				SysRandom(0)
+
+void MemExtInit();
+void MemExtCleanup();
+
+MemPtr realloc(MemPtr oldP, UInt32 size);
+MemPtr calloc(UInt32 nelem, UInt32 elsize);
+Err free(MemPtr memP);
+void exit(Int16 status);
+void *bsearch(const void *key, const void *base, UInt32 nmemb, 
+				UInt32 size, int (*compar)(const void *, const void *));
+
+
+#endif
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/string.h b/backends/PalmOS/Src/missing/string.h
new file mode 100644
index 0000000000..f19e54ffa1
--- /dev/null
+++ b/backends/PalmOS/Src/missing/string.h
@@ -0,0 +1,22 @@
+#include <PalmOS.h>
+
+#define memcmp			MemCmp
+#define memcpy			MemMove
+#define memmove			MemMove
+#define memset(a,b,c)	MemSet(a,c,b)
+#define strcat			StrCat
+#define strchr			StrChr
+#define strcmp			StrCompare
+#define strcpy			StrCopy
+#define strncpy			StrNCopy
+#define stricmp			StrCaselessCompare
+#define strlen			StrLen
+#define strncmp			StrNCompare
+#define strstr			StrStr
+
+Char *strtok(Char *str, const Char *sep);
+Char *strrchr(const Char *s, int c);
+Char *strdup(const Char *strSource);
+Char *strpbrk(const Char *s1, const Char *s2);
+
+#define StrTok			strtok
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/sys/stat.h b/backends/PalmOS/Src/missing/sys/stat.h
new file mode 100644
index 0000000000..a6b5294568
--- /dev/null
+++ b/backends/PalmOS/Src/missing/sys/stat.h
@@ -0,0 +1 @@
+/* nothing */
\ No newline at end of file
diff --git a/backends/PalmOS/Src/missing/time.h b/backends/PalmOS/Src/missing/time.h
new file mode 100644
index 0000000000..df93e2cdd9
--- /dev/null
+++ b/backends/PalmOS/Src/missing/time.h
@@ -0,0 +1,18 @@
+#include <PalmOS.h>
+
+typedef UInt32 time_t;
+
+struct tm {
+	Int16 tm_sec;		//	seconds [0,61]
+	Int16 tm_min;		//	minutes [0,59]
+	Int16 tm_hour;		//	hour [0,23]
+	Int16 tm_mday;		//	day of month [1,31]
+	Int16 tm_mon;		//	month of year [0,11]
+	Int16 tm_year;		//	years since 1900
+	Int16 tm_wday;		//	day of week [0,6] (Sunday = 0)
+	Int16 tm_yday;		//	day of year [0,365]
+	Int16 tm_isdst;		//	daylight savings flag
+};
+
+time_t time(time_t *tloc);
+struct tm *localtime(const time_t *timer);
diff --git a/backends/PalmOS/Src/missing/unistd.h b/backends/PalmOS/Src/missing/unistd.h
new file mode 100644
index 0000000000..b5111cce98
--- /dev/null
+++ b/backends/PalmOS/Src/missing/unistd.h
@@ -0,0 +1,3 @@
+#include <PalmOS.h>
+
+Char *getcwd(Char *buf, UInt32 size);