DS: Fix some quirks in the NDS build system, remove some dead code

* remove (S)RAM save code (it has not been in use for quite some time)
* remove the lz compressor (was only used by ram save code)
* OPT_SPEED was set incorrectly
* dsmain.cpp was misspelled as ds_main.cpp
* remove unsed arm9 libcartreset (the copy in the arm7 directory
  still is around, though)

svn-id: r50741

10 files changed, 13 insertions, 1567 deletions

diff --git a/backends/platform/ds/arm9/source/compressor/lz.cpp b/backends/platform/ds/arm9/source/compressor/lz.cpp
deleted file mode 100644
index 47a36646c6..0000000000
--- a/backends/platform/ds/arm9/source/compressor/lz.cpp
+++ /dev/null
@@ -1,539 +0,0 @@
-/*************************************************************************
-* Name:        lz.c
-* Author:      Marcus Geelnard
-* Description: LZ77 coder/decoder implementation.
-* Reentrant:   Yes
-* $Id$
-*
-* The LZ77 compression scheme is a substitutional compression scheme
-* proposed by Abraham Lempel and Jakob Ziv in 1977. It is very simple in
-* its design, and uses no fancy bit level compression.
-*
-* This is my first attempt at an implementation of a LZ77 code/decoder.
-*
-* The principle of the LZ77 compression algorithm is to store repeated
-* occurrences of strings as references to previous occurrences of the same
-* string. The point is that the reference consumes less space than the
-* string itself, provided that the string is long enough (in this
-* implementation, the string has to be at least 4 bytes long, since the
-* minimum coded reference is 3 bytes long). Also note that the term
-* "string" refers to any kind of byte sequence (it does not have to be
-* an ASCII string, for instance).
-*
-* The coder uses a brute force approach to finding string matches in the
-* history buffer (or "sliding window", if you wish), which is very, very
-* slow. I recon the complexity is somewhere between O(n^2) and O(n^3),
-* depending on the input data.
-*
-* There is also a faster implementation that uses a large working buffer
-* in which a "jump table" is stored, which is used to quickly find
-* possible string matches (see the source code for LZ_CompressFast() for
-* more information). The faster method is an order of magnitude faster,
-* and also does a full string search in the entire input buffer (it does
-* not use a sliding window).
-*
-* The upside is that decompression is very fast, and the compression ratio
-* is often very good.
-*
-* The reference to a string is coded as a (length,offset) pair, where the
-* length indicates the length of the string, and the offset gives the
-* offset from the current data position. To distinguish between string
-* references and literal strings (uncompressed bytes), a string reference
-* is preceded by a marker byte, which is chosen as the least common byte
-* symbol in the input data stream (this marker byte is stored in the
-* output stream as the first byte).
-*
-* Occurrences of the marker byte in the stream are encoded as the marker
-* byte followed by a zero byte, which means that occurrences of the marker
-* byte have to be coded with two bytes.
-*
-* The lengths and offsets are coded in a variable length fashion, allowing
-* values of any magnitude (up to 4294967295 in this implementation).
-*
-* With this compression scheme, the worst case compression result is
-* (257/256)*insize + 1.
-*
-*-------------------------------------------------------------------------
-* Copyright (c) 2003-2004 Marcus Geelnard
-*
-* This software is provided 'as-is', without any express or implied
-* warranty. In no event will the authors be held liable for any damages
-* arising from the use of this software.
-*
-* Permission is granted to anyone to use this software for any purpose,
-* including commercial applications, and to alter it and redistribute it
-* freely, subject to the following restrictions:
-*
-* 1. The origin of this software must not be misrepresented; you must not
-*    claim that you wrote the original software. If you use this software
-*    in a product, an acknowledgment in the product documentation would
-*    be appreciated but is not required.
-*
-* 2. Altered source versions must be plainly marked as such, and must not
-*    be misrepresented as being the original software.
-*
-* 3. This notice may not be removed or altered from any source
-*    distribution.
-*
-* Marcus Geelnard
-* marcus.geelnard at home.se
-*************************************************************************/
-
-
-/*************************************************************************
-* Constants used for LZ77 coding
-*************************************************************************/
-
-/* Maximum offset (can be any size < 2^32). Lower values gives faster
-   compression, while higher values gives better compression.
-   NOTE: LZ_CompressFast does not use this constant. */
-#define LZ_MAX_OFFSET 512
-
-
-
-/*************************************************************************
-*                           INTERNAL FUNCTIONS                           *
-*************************************************************************/
-
-
-/*************************************************************************
-* _LZ_StringCompare() - Return maximum length string match.
-*************************************************************************/
-
-inline static unsigned int _LZ_StringCompare( unsigned char * str1,
-  unsigned char * str2, unsigned int minlen, unsigned int maxlen )
-{
-    unsigned int len;
-
-    for ( len = minlen; (len < maxlen) && (str1[len] == str2[len]); ++ len );
-
-    return len;
-}
-
-
-/*************************************************************************
-* _LZ_WriteVarSize() - Write unsigned integer with variable number of
-* bytes depending on value.
-*************************************************************************/
-
-inline static int _LZ_WriteVarSize( unsigned int x, unsigned char * buf )
-{
-    unsigned int y;
-    int num_bytes, i, b;
-
-    /* Determine number of bytes needed to store the number x */
-    y = x >> 3;
-    for ( num_bytes = 5; num_bytes >= 2; -- num_bytes )
-    {
-        if ( y & 0xfe000000 ) break;
-        y <<= 7;
-    }
-
-    /* Write all bytes, seven bits in each, with 8:th bit set for all */
-    /* but the last byte. */
-    for ( i = num_bytes-1; i >= 0; -- i )
-    {
-        b = (x >> (i*7)) & 0x0000007f;
-        if ( i > 0 )
-        {
-            b |= 0x00000080;
-        }
-        *buf ++ = (unsigned char) b;
-    }
-
-    /* Return number of bytes written */
-    return num_bytes;
-}
-
-
-/*************************************************************************
-* _LZ_ReadVarSize() - Read unsigned integer with variable number of
-* bytes depending on value.
-*************************************************************************/
-
-inline static int _LZ_ReadVarSize( unsigned int * x, unsigned char * buf )
-{
-    unsigned int y, b, num_bytes;
-
-    /* Read complete value (stop when byte contains zero in 8:th bit) */
-    y = 0;
-    num_bytes = 0;
-    do
-    {
-        b = (unsigned int) (*buf ++);
-        y = (y << 7) | (b & 0x0000007f);
-        ++ num_bytes;
-    }
-    while ( b & 0x00000080 );
-
-    /* Store value in x */
-    *x = y;
-
-    /* Return number of bytes read */
-    return num_bytes;
-}
-
-
-
-/*************************************************************************
-*                            PUBLIC FUNCTIONS                            *
-*************************************************************************/
-
-
-/*************************************************************************
-* LZ_Compress() - Compress a block of data using an LZ77 coder.
-*  in     - Input (uncompressed) buffer.
-*  out    - Output (compressed) buffer. This buffer must be 0.4% larger
-*           than the input buffer, plus one byte.
-*  insize - Number of input bytes.
-* The function returns the size of the compressed data.
-*************************************************************************/
-
-int LZ_Compress( unsigned char *in, unsigned char *out,
-    unsigned int insize )
-{
-    unsigned char marker, symbol;
-    unsigned int  inpos, outpos, bytesleft, i;
-    unsigned int  maxoffset, offset, bestoffset;
-    unsigned int  maxlength, length, bestlength;
-    unsigned int  histogram[ 256 ];
-    unsigned char *ptr1, *ptr2;
-
-    /* Do we have anything to compress? */
-    if ( insize < 1 )
-    {
-        return 0;
-    }
-
-    /* Create histogram */
-    for ( i = 0; i < 256; ++ i )
-    {
-        histogram[ i ] = 0;
-    }
-    for ( i = 0; i < insize; ++ i )
-    {
-        ++ histogram[ in[ i ] ];
-    }
-
-    /* Find the least common byte, and use it as the code marker */
-    marker = 0;
-    for ( i = 1; i < 256; ++ i )
-    {
-        if ( histogram[ i ] < histogram[ marker ] )
-        {
-            marker = i;
-        }
-    }
-
-    /* Remember the repetition marker for the decoder */
-    out[ 0 ] = marker;
-
-    /* Start of compression */
-    inpos = 0;
-    outpos = 1;
-
-    /* Main compression loop */
-    bytesleft = insize;
-    do
-    {
-        /* Determine most distant position */
-        if ( inpos > LZ_MAX_OFFSET ) maxoffset = LZ_MAX_OFFSET;
-        else                        maxoffset = inpos;
-
-        /* Get pointer to current position */
-        ptr1 = &in[ inpos ];
-
-        /* Search history window for maximum length string match */
-        bestlength = 3;
-        bestoffset = 0;
-        for ( offset = 3; offset <= maxoffset; ++ offset )
-        {
-            /* Get pointer to candidate string */
-            ptr2 = &ptr1[ -offset ];
-
-            /* Quickly determine if this is a candidate (for speed) */
-            if ( (ptr1[ 0 ] == ptr2[ 0 ]) &&
-                (ptr1[ bestlength ] == ptr2[ bestlength ]) )
-            {
-                /* Determine maximum length for this offset */
-                maxlength = (bytesleft < offset ? bytesleft : offset);
-
-                /* Count maximum length match at this offset */
-                length = _LZ_StringCompare( ptr1, ptr2, 0, maxlength );
-
-                /* Better match than any previous match? */
-                if ( length > bestlength )
-                {
-                    bestlength = length;
-                    bestoffset = offset;
-                }
-            }
-        }
-
-        /* Was there a good enough match? */
-        if ( (bestlength >= 8) ||
-            ((bestlength == 4) && (bestoffset <= 0x0000007f)) ||
-            ((bestlength == 5) && (bestoffset <= 0x00003fff)) ||
-            ((bestlength == 6) && (bestoffset <= 0x001fffff)) ||
-            ((bestlength == 7) && (bestoffset <= 0x0fffffff)) )
-        {
-            out[ outpos ++ ] = (unsigned char) marker;
-            outpos += _LZ_WriteVarSize( bestlength, &out[ outpos ] );
-            outpos += _LZ_WriteVarSize( bestoffset, &out[ outpos ] );
-            inpos += bestlength;
-            bytesleft -= bestlength;
-        }
-        else
-        {
-            /* Output single byte (or two bytes if marker byte) */
-            symbol = in[ inpos ++ ];
-            out[ outpos ++ ] = symbol;
-            if ( symbol == marker )
-            {
-                out[ outpos ++ ] = 0;
-            }
-            -- bytesleft;
-        }
-    }
-    while ( bytesleft > 3 );
-
-    /* Dump remaining bytes, if any */
-    while ( inpos < insize )
-    {
-        if ( in[ inpos ] == marker )
-        {
-            out[ outpos ++ ] = marker;
-            out[ outpos ++ ] = 0;
-        }
-        else
-        {
-            out[ outpos ++ ] = in[ inpos ];
-        }
-        ++ inpos;
-    }
-
-    return outpos;
-}
-
-
-/*************************************************************************
-* LZ_CompressFast() - Compress a block of data using an LZ77 coder.
-*  in     - Input (uncompressed) buffer.
-*  out    - Output (compressed) buffer. This buffer must be 0.4% larger
-*           than the input buffer, plus one byte.
-*  insize - Number of input bytes.
-*  work   - Pointer to a temporary buffer (internal working buffer), which
-*           must be able to hold (insize+65536) unsigned integers.
-* The function returns the size of the compressed data.
-*************************************************************************/
-
-int LZ_CompressFast( unsigned char *in, unsigned char *out,
-    unsigned int insize, unsigned int *work )
-{
-    unsigned char marker, symbol;
-    unsigned int  inpos, outpos, bytesleft, i, index, symbols;
-    unsigned int  offset, bestoffset;
-    unsigned int  maxlength, length, bestlength;
-    unsigned int  histogram[ 256 ], *lastindex, *jumptable;
-    unsigned char *ptr1, *ptr2;
-
-    /* Do we have anything to compress? */
-    if ( insize < 1 )
-    {
-        return 0;
-    }
-
-    /* Assign arrays to the working area */
-    lastindex = work;
-    jumptable = &work[ 65536 ];
-
-    /* Build a "jump table". Here is how the jump table works:
-       jumptable[i] points to the nearest previous occurrence of the same
-       symbol pair as in[i]:in[i+1], so in[i] == in[jumptable[i]] and
-       in[i+1] == in[jumptable[i]+1]. Following the jump table gives a
-       dramatic boost for the string search'n'match loop compared to doing
-       a brute force search. */
-    for ( i = 0; i < 65536; ++ i )
-    {
-        lastindex[ i ] = 0xffffffff;
-    }
-    for ( i = 0; i < insize-1; ++ i )
-    {
-        symbols = (((unsigned int)in[i]) << 8) | ((unsigned int)in[i+1]);
-        index = lastindex[ symbols ];
-        lastindex[ symbols ] = i;
-        jumptable[ i ] = index;
-    }
-    jumptable[ insize-1 ] = 0xffffffff;
-
-    /* Create histogram */
-    for ( i = 0; i < 256; ++ i )
-    {
-        histogram[ i ] = 0;
-    }
-    for ( i = 0; i < insize; ++ i )
-    {
-        ++ histogram[ in[ i ] ];
-    }
-
-    /* Find the least common byte, and use it as the code marker */
-    marker = 0;
-    for ( i = 1; i < 256; ++ i )
-    {
-        if ( histogram[ i ] < histogram[ marker ] )
-        {
-            marker = i;
-        }
-    }
-
-    /* Remember the repetition marker for the decoder */
-    out[ 0 ] = marker;
-
-    /* Start of compression */
-    inpos = 0;
-    outpos = 1;
-
-    /* Main compression loop */
-    bytesleft = insize;
-    do
-    {
-        /* Get pointer to current position */
-        ptr1 = &in[ inpos ];
-
-        /* Search history window for maximum length string match */
-        bestlength = 3;
-        bestoffset = 0;
-        index = jumptable[ inpos ];
-        while ( index != 0xffffffff )
-        {
-            /* Get pointer to candidate string */
-            ptr2 = &in[ index ];
-
-            /* Quickly determine if this is a candidate (for speed) */
-            if ( ptr2[ bestlength ] == ptr1[ bestlength ] )
-            {
-                /* Determine maximum length for this offset */
-                offset = inpos - index;
-                maxlength = (bytesleft < offset ? bytesleft : offset);
-
-                /* Count maximum length match at this offset */
-                length = _LZ_StringCompare( ptr1, ptr2, 2, maxlength );
-
-                /* Better match than any previous match? */
-                if ( length > bestlength )
-                {
-                    bestlength = length;
-                    bestoffset = offset;
-                }
-            }
-
-            /* Get next possible index from jump table */
-            index = jumptable[ index ];
-        }
-
-        /* Was there a good enough match? */
-        if ( (bestlength >= 8) ||
-            ((bestlength == 4) && (bestoffset <= 0x0000007f)) ||
-            ((bestlength == 5) && (bestoffset <= 0x00003fff)) ||
-            ((bestlength == 6) && (bestoffset <= 0x001fffff)) ||
-            ((bestlength == 7) && (bestoffset <= 0x0fffffff)) )
-        {
-            out[ outpos ++ ] = (unsigned char) marker;
-            outpos += _LZ_WriteVarSize( bestlength, &out[ outpos ] );
-            outpos += _LZ_WriteVarSize( bestoffset, &out[ outpos ] );
-            inpos += bestlength;
-            bytesleft -= bestlength;
-        }
-        else
-        {
-            /* Output single byte (or two bytes if marker byte) */
-            symbol = in[ inpos ++ ];
-            out[ outpos ++ ] = symbol;
-            if ( symbol == marker )
-            {
-                out[ outpos ++ ] = 0;
-            }
-            -- bytesleft;
-        }
-    }
-    while ( bytesleft > 3 );
-
-    /* Dump remaining bytes, if any */
-    while ( inpos < insize )
-    {
-        if ( in[ inpos ] == marker )
-        {
-            out[ outpos ++ ] = marker;
-            out[ outpos ++ ] = 0;
-        }
-        else
-        {
-            out[ outpos ++ ] = in[ inpos ];
-        }
-        ++ inpos;
-    }
-
-    return outpos;
-}
-
-
-/*************************************************************************
-* LZ_Uncompress() - Uncompress a block of data using an LZ77 decoder.
-*  in      - Input (compressed) buffer.
-*  out     - Output (uncompressed) buffer. This buffer must be large
-*            enough to hold the uncompressed data.
-*  insize  - Number of input bytes.
-*************************************************************************/
-
-void LZ_Uncompress( unsigned char *in, unsigned char *out,
-    unsigned int insize )
-{
-    unsigned char marker, symbol;
-    unsigned int  i, inpos, outpos, length, offset;
-
-    /* Do we have anything to compress? */
-    if ( insize < 1 )
-    {
-        return;
-    }
-
-    /* Get marker symbol from input stream */
-    marker = in[ 0 ];
-    inpos = 1;
-
-    /* Main decompression loop */
-    outpos = 0;
-    do
-    {
-        symbol = in[ inpos ++ ];
-        if ( symbol == marker )
-        {
-            /* We had a marker byte */
-            if ( in[ inpos ] == 0 )
-            {
-                /* It was a single occurrence of the marker byte */
-                out[ outpos ++ ] = marker;
-                ++ inpos;
-            }
-            else
-            {
-                /* Extract true length and offset */
-                inpos += _LZ_ReadVarSize( &length, &in[ inpos ] );
-                inpos += _LZ_ReadVarSize( &offset, &in[ inpos ] );
-
-                /* Copy corresponding data from history window */
-                for ( i = 0; i < length; ++ i )
-                {
-                    out[ outpos ] = out[ outpos - offset ];
-                    ++ outpos;
-                }
-            }
-        }
-        else
-        {
-            /* No marker, plain copy */
-            out[ outpos ++ ] = symbol;
-        }
-    }
-    while ( inpos < insize );
-}
diff --git a/backends/platform/ds/arm9/source/compressor/lz.h b/backends/platform/ds/arm9/source/compressor/lz.h
deleted file mode 100644
index e7ea1567ca..0000000000
--- a/backends/platform/ds/arm9/source/compressor/lz.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*************************************************************************
-* Name:        lz.h
-* Author:      Marcus Geelnard
-* Description: LZ77 coder/decoder interface.
-* Reentrant:   Yes
-* $Id$
-*-------------------------------------------------------------------------
-* Copyright (c) 2003-2004 Marcus Geelnard
-*
-* This software is provided 'as-is', without any express or implied
-* warranty. In no event will the authors be held liable for any damages
-* arising from the use of this software.
-*
-* Permission is granted to anyone to use this software for any purpose,
-* including commercial applications, and to alter it and redistribute it
-* freely, subject to the following restrictions:
-*
-* 1. The origin of this software must not be misrepresented; you must not
-*    claim that you wrote the original software. If you use this software
-*    in a product, an acknowledgment in the product documentation would
-*    be appreciated but is not required.
-*
-* 2. Altered source versions must be plainly marked as such, and must not
-*    be misrepresented as being the original software.
-*
-* 3. This notice may not be removed or altered from any source
-*    distribution.
-*
-* Marcus Geelnard
-* marcus.geelnard at home.se
-*************************************************************************/
-
-#ifndef _lz_h_
-#define _lz_h_
-
-
-
-/*************************************************************************
-* Function prototypes
-*************************************************************************/
-
-int LZ_Compress( unsigned char *in, unsigned char *out,
-                 unsigned int insize );
-int LZ_CompressFast( unsigned char *in, unsigned char *out,
-                     unsigned int insize, unsigned int *work );
-void LZ_Uncompress( unsigned char *in, unsigned char *out,
-                    unsigned int insize );
-
-
-#endif /* _lz_h_ */
diff --git a/backends/platform/ds/arm9/source/dsmain.cpp b/backends/platform/ds/arm9/source/dsmain.cpp
index 8d51eff3da..95bfdfe40a 100644
--- a/backends/platform/ds/arm9/source/dsmain.cpp
+++ b/backends/platform/ds/arm9/source/dsmain.cpp
@@ -73,8 +73,6 @@
 
 
 
-//#define USE_LIBCARTRESET
-
 #include <nds.h>
 #include <nds/registers_alt.h>
 #include <nds/arm9/exceptions.h>
@@ -100,9 +98,7 @@
 #ifdef USE_DEBUGGER
 #include "user_debugger.h"
 #endif
-#include "ramsave.h"
 #include "blitters.h"
-#include "libcartreset/cartreset_nolibfat.h"
 #include "keys.h"
 #ifdef USE_PROFILER
 #include "profiler/cyg-profile.h"
@@ -2775,31 +2771,6 @@ GLvector getPenPos() {
 	return v;
 }
 
-#ifdef GBA_SRAM_SAVE
-
-void formatSramOption() {
-	consolePrintf("The following files are present in save RAM:\n");
-	DSSaveFileManager::instance()->listFiles();
-
-	consolePrintf("\nAre you sure you want to\n");
-	consolePrintf("DELETE all files?\n");
-	consolePrintf("A = Yes, X = No\n");
-
-	while (true) {
-		if (keysHeld() & KEY_A) {
-			DSSaveFileManager::instance()->formatSram();
-			consolePrintf("SRAM cleared!\n");
-			return;
-		}
-
-		if (keysHeld() & KEY_X) {
-			consolePrintf("Whew, that was close!\n");
-			return;
-		}
-	}
-}
-#endif
-
 void setIndyFightState(bool st) {
 	indyFightState = st;
 	indyFightRight = true;
@@ -2884,61 +2855,6 @@ void debug_print_stub(char *string) {
 }
 #endif
 
-#ifdef USE_LIBCARTRESET
-
-struct cardTranslate {
-	int cartResetId;
-	int svmId;
-	char dldiId[5];
-};
-
-cardTranslate cardReaderTable[] = {
-	{DEVICE_TYPE_M3SD,		DEVICE_M3SD,	"M3SD"},
-	{DEVICE_TYPE_M3CF,		DEVICE_M3CF,	"M3CF"},
-	{DEVICE_TYPE_MPCF,		DEVICE_MPCF,	"MPCF"},
-	{DEVICE_TYPE_SCCF,		DEVICE_SCCF,	"SCCF"},
-	{DEVICE_TYPE_SCSD,		DEVICE_SCSD,	"SCSD"},
-	{DEVICE_TYPE_SCSD,		DEVICE_SCSD,	"SCLT"},
-	{DEVICE_TYPE_NMMC,		DEVICE_NMMC,	"NMMC"},
-};
-
-void reboot() {
-	int deviceType = -1;
-
-
-	if (disc_getDeviceId() == DEVICE_DLDI) {
-
-		char id[6];
-		disc_getDldiId(id);
-
-		consolePrintf("DLDI Device ID: %s\n", id);
-
-		for (int r = 0; r < ARRAYSIZE(cardReaderTable); r++) {
-			if (!stricmp(id, cardReaderTable[r].dldiId)) {
-				deviceType = cardReaderTable[r].cartResetId;
-			}
-		}
-	} else {
-		for (int r = 0; r < ARRAYSIZE(cardReaderTable); r++) {
-			if (disc_getDeviceId() == cardReaderTable[r].svmId) {
-				deviceType = cardReaderTable[r].cartResetId;
-			}
-		}
-	}
-
-
-	consolePrintf("Device number: %x\n", deviceType);
-
-	if (deviceType == -1) {
-		IPC->reset = true;				// Send message to ARM7 to turn power off
-	} else {
-		cartSetMenuMode(deviceType);
-		passmeloopEnter();
-	}
-
-	while (true);		// Stop the program continuing beyond this point
-}
-#endif
 
 void powerOff() {
 	while (keysHeld() != 0) {		// Wait for all keys to be released.
@@ -2953,12 +2869,10 @@ void powerOff() {
 		while (true);
 	} else {
 
-#ifdef USE_LIBCARTRESET
-		reboot();
-#else
 		IPC->reset = true;				// Send message to ARM7 to turn power off
-		while (true);		// Stop the program continuing beyond this point
-#endif
+		while (true) {
+			// Stop the program from continuing beyond this point
+		}
 	}
 }
 
@@ -2979,7 +2893,7 @@ void dsExceptionHandler() {
 
 	int offset = 8;
 
-	if ( currentMode == 0x17 ) {
+	if (currentMode == 0x17) {
 		consolePrintf("\x1b[10Cdata abort!\n\n");
 		codeAddress = exceptionRegisters[15] - offset;
 		if (	(codeAddress > 0x02000000 && codeAddress < 0x02400000) ||
@@ -3002,16 +2916,19 @@ void dsExceptionHandler() {
 
 
 	int i;
-	for ( i=0; i < 8; i++ ) {
+	for (i = 0; i < 8; i++) {
 		consolePrintf("  %s: %08X   %s: %08X\n",
 					registerNames[i], exceptionRegisters[i],
 					registerNames[i+8],exceptionRegisters[i+8]);
 	}
-	while(1);
+
+	while(1)
+		;	// endles loop
+
 	u32 *stack = (u32 *)exceptionRegisters[13];
 
 
-	for ( i=0; i<10; i++ ) {
+	for (i = 0; i < 10; i++) {
 		consolePrintf("%08X %08X %08X\n", stack[i*3], stack[i*3+1], stack[(i*3)+2] );
 	}
 
@@ -3262,12 +3179,6 @@ int main(void) {
 	g_system = new OSystem_DS();
 	assert(g_system);
 
-#ifdef GBA_SRAM_SAVE
-	if ((keysHeld() & KEY_L) && (keysHeld() & KEY_R)) {
-		formatSramOption();
-	}
-#endif
-
 	IPC->adpcm.semaphore = false;
 
 //	printf("'%s'", Common::ConfigManager::kTransientDomain.c_str());
diff --git a/backends/platform/ds/arm9/source/gbampsave.h b/backends/platform/ds/arm9/source/gbampsave.h
index fd16b72e4c..ad929236cd 100644
--- a/backends/platform/ds/arm9/source/gbampsave.h
+++ b/backends/platform/ds/arm9/source/gbampsave.h
@@ -27,6 +27,7 @@
 #define _GBAMPSAVE_H_
 
 #include "common/system.h"
+#include "common/savefile.h"
 #include "backends/fs/ds/ds-fs.h"
 
 #define SAVE_BUFFER_SIZE 100000
diff --git a/backends/platform/ds/arm9/source/libcartreset/cartreset.c b/backends/platform/ds/arm9/source/libcartreset/cartreset.c
deleted file mode 100644
index 6fb906b86d..0000000000
--- a/backends/platform/ds/arm9/source/libcartreset/cartreset.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/**********************************
-  Copyright (C) Rick Wong (Lick)
-  http://licklick.wordpress.com/
-***********************************/
-#include <cartreset_nolibfat.h>
-
-
-#ifdef ARM9
-
-bool cartSetMenuMode(u32 _deviceType)
-{
-    *(vu16*)(0x04000204) &= ~0x0880;    //sysSetBusOwners(true, true);
-    u32 deviceType = _deviceType;
-
-    *((vu32*)0x027FFFF8) = 0x080000C0; // ARM7 reset address
-
-    if(deviceType == DEVICE_TYPE_EFA2)
-    {
-        *(u16 *)0x9FE0000 = 0xD200;
-        *(u16 *)0x8000000 = 0x1500;
-        *(u16 *)0x8020000 = 0xD200;
-        *(u16 *)0x8040000 = 0x1500;
-        *(u16 *)0x9880000 = 1 << 15;
-        *(u16 *)0x9FC0000 = 0x1500;
-        return true;
-    }
-    else if(deviceType == DEVICE_TYPE_MPCF)
-    {
-        return true;
-    }
-    else if(deviceType == DEVICE_TYPE_EZSD)
-    {
-        return true;
-    }
-    else if(deviceType == DEVICE_TYPE_M3CF || deviceType == DEVICE_TYPE_M3SD)
-    {
-        u32 mode = 0x00400004;
-	    vu16 tmp;
-        tmp = *(vu16*)(0x08E00002);
-        tmp = *(vu16*)(0x0800000E);
-        tmp = *(vu16*)(0x08801FFC);
-        tmp = *(vu16*)(0x0800104A);
-        tmp = *(vu16*)(0x08800612);
-        tmp = *(vu16*)(0x08000000);
-        tmp = *(vu16*)(0x08801B66);
-        tmp = *(vu16*)(0x08000000 + (mode << 1));
-        tmp = *(vu16*)(0x0800080E);
-        tmp = *(vu16*)(0x08000000);
-
-        tmp = *(vu16*)(0x080001E4);
-        tmp = *(vu16*)(0x080001E4);
-        tmp = *(vu16*)(0x08000188);
-        tmp = *(vu16*)(0x08000188);
-        return true;
-    }
-    else if(deviceType == DEVICE_TYPE_SCCF || deviceType == DEVICE_TYPE_SCSD)
-    {
-        *(vu16*)0x09FFFFFE = 0xA55A;
-        *(vu16*)0x09FFFFFE = 0xA55A;
-        *(vu16*)0x09FFFFFE = 0;
-        *(vu16*)0x09FFFFFE = 0;
-        *((vu32*)0x027FFFF8) = 0x08000000; // Special ARM7 reset address
-        return true;
-    }
-
-    return false;
-}
-
-
-
-void passmeloopEnter()
-{
-    *(vu16*)(0x04000208) = 0;           //REG_IME = IME_DISABLE;
-    *(vu16*)(0x04000204) |= 0x0880;     //sysSetBusOwners(false, false);
-    *((vu32*)0x027FFFFC) = 0;
-    *((vu32*)0x027FFE04) = (u32)0xE59FF018;
-    *((vu32*)0x027FFE24) = (u32)0x027FFE04;
-    asm("swi 0x00");                    //swiSoftReset();
-    asm("bx lr");
-}
-
-#endif
-
-
-#ifdef ARM7
-
-bool passmeloopQuery()
-{
-    if(*((vu32*)0x027FFE24) == (u32)0x027FFE04)
-        return true;
-    return false;
-}
-
-
-
-void cartExecute()
-{
-    *(vu16*)(0x04000208) = 0;       //REG_IME = IME_DISABLE;
-    *((vu32*)0x027FFE34) = *((vu32*)0x027FFFF8);
-    asm("swi 0x00");                //swiSoftReset();
-    asm("bx lr");
-}
-
-#endif
-
-
-
diff --git a/backends/platform/ds/arm9/source/libcartreset/cartreset_nolibfat.h b/backends/platform/ds/arm9/source/libcartreset/cartreset_nolibfat.h
deleted file mode 100644
index ddc4b1d4c2..0000000000
--- a/backends/platform/ds/arm9/source/libcartreset/cartreset_nolibfat.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/**********************************
-  Copyright (C) Rick Wong (Lick)
-  http://licklick.wordpress.com/
-***********************************/
-#ifndef CARTRESET_H
-#define CARTRESET_H
-
-//#include <fat.h>
-#include <nds.h>
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#ifdef ARM9
-// Auto detect:
-#define DEVICE_TYPE_AUTO        0x00000000 // doesn't work in libcartreset "nolibfat" version
-
-// Not supported:
-#define DEVICE_TYPE_FCSR        0x52534346
-#define DEVICE_TYPE_MMCF        0x46434D4D
-#define DEVICE_TYPE_NJSD        0x44534A4E
-#define DEVICE_TYPE_NMMC        0x434D4D4E
-
-// Supported:
-#define DEVICE_TYPE_EFA2        0x32414645
-#define DEVICE_TYPE_MPCF        0x4643504D
-#define DEVICE_TYPE_M3CF        0x4643334D
-#define DEVICE_TYPE_M3SD        0x4453334D
-#define DEVICE_TYPE_SCCF        0x46434353
-#define DEVICE_TYPE_SCSD        0x44534353
-
-// Supported, but libfat doesn't detect the device:
-#define DEVICE_TYPE_EZSD        0x44535A45
-
-
-bool cartSetMenuMode(u32 _deviceType);
-void passmeloopEnter();
-
-#endif
-
-
-#ifdef ARM7
-
-bool passmeloopQuery();
-void cartExecute();
-
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
diff --git a/backends/platform/ds/arm9/source/osystem_ds.cpp b/backends/platform/ds/arm9/source/osystem_ds.cpp
index 09617c17b0..55475b0bff 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.cpp
+++ b/backends/platform/ds/arm9/source/osystem_ds.cpp
@@ -729,26 +729,10 @@ void OSystem_DS::quit() {
 }
 
 Common::SaveFileManager *OSystem_DS::getSavefileManager() {
-	bool forceSram;
-
-	if (ConfMan.hasKey("forcesramsave", "ds")) {
-		forceSram = ConfMan.getBool("forcesramsave", "ds");
-	} else {
-		forceSram = false;
-	}
-	if (forceSram) {
-		consolePrintf("Using SRAM save method!\n");
-	}
-
-	if (DS::isGBAMPAvailable() && (!forceSram)) {
+	if (DS::isGBAMPAvailable()) {
 		return &mpSaveManager;
-	} else {
-#ifdef GBA_SRAM_SAVE
-		return &saveManager;
-#else
-		return NULL;
-#endif
 	}
+	return NULL;
 }
 
 
diff --git a/backends/platform/ds/arm9/source/osystem_ds.h b/backends/platform/ds/arm9/source/osystem_ds.h
index a899c966fc..65ac3f4f7e 100644
--- a/backends/platform/ds/arm9/source/osystem_ds.h
+++ b/backends/platform/ds/arm9/source/osystem_ds.h
@@ -30,7 +30,6 @@
 #include "backends/base-backend.h"
 #include "common/events.h"
 #include "nds.h"
-#include "ramsave.h"
 #include "gbampsave.h"
 #include "backends/saves/default/default-saves.h"
 #include "backends/timer/default/default-timer.h"
@@ -47,9 +46,6 @@ protected:
 	Common::Event eventQueue[96];
 	int queuePos;
 
-#ifdef GBA_SRAM_SAVE
-	DSSaveFileManager saveManager;
-#endif
 	GBAMPSaveFileManager mpSaveManager;
 	Audio::MixerImpl *_mixer;
 	DefaultTimerManager *_timer;
diff --git a/backends/platform/ds/arm9/source/ramsave.cpp b/backends/platform/ds/arm9/source/ramsave.cpp
deleted file mode 100644
index d8e74d7445..0000000000
--- a/backends/platform/ds/arm9/source/ramsave.cpp
+++ /dev/null
@@ -1,538 +0,0 @@
-/* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
- */
-#ifdef GBA_SRAM_SAVE
-
-
-#include "ramsave.h"
-#include "nds.h"
-#include "compressor/lz.h"
-
-#define CART_RAM ((vu8 *) (0x0A000000))
-#define SRAM_SAVE_MAX (65533)
-
-DSSaveFile::DSSaveFile() {
-	ptr = 0;
-	saveCompressed = false;
-	save.isValid = false;
-	ownsData = false;
-	isOpenFlag = true;
-	isTempFile = false;
-}
-
-DSSaveFile::DSSaveFile(SCUMMSave *s, bool compressed, u8 *data) {
-	save = *s;
-	saveData = data;
-	ptr = 0;
-	saveCompressed = compressed;
-	isOpenFlag = true;
-
-	if (saveCompressed) {
-		u8 *uncompressed = new unsigned char[save.size];
-		if (!uncompressed) consolePrintf("Out of memory allocating %d!\n", save.size);
-		LZ_Uncompress(saveData, uncompressed, save.compressedSize);
-		saveData = uncompressed;
-		ownsData = true;
-		saveCompressed = false;
-//		consolePrintf("Decompressed. name=%s size=%d (%d)", save.name, save.size, save.compressedSize);
-
-	} else {
-		ownsData = false;
-		origHeader = s;
-	}
-
-	if (save.magic == (int) 0xBEEFCAFE) {
-		save.isValid = true;
-	} else {
-		save.isValid = false;
-	}
-
-	isTempFile = false;
-	eosReached = false;
-}
-
-DSSaveFile::~DSSaveFile() {
-	if (!ownsData) {
-		*origHeader = save;
-		DSSaveFileManager::instance()->flushToSaveRAM();
-	}
-	if (ownsData) {
-		delete[] saveData;
-	}
-}
-
-bool DSSaveFile::loadFromSaveRAM(vu8 *address) {
-
-	SCUMMSave newSave;
-
-	for (int t = 0; t < (int) sizeof(newSave); t++) {
-		((char *) (&newSave))[t] = *(address + t);
-	}
-
-	if (newSave.magic == 0xBEEFCAFE) {
-		newSave.isValid = true;
-
-		*((u16 *) (0x4000204)) |= 0x3;
-
-		saveData = new unsigned char[newSave.compressedSize];
-
-		for (int t = 0; t < (int) newSave.compressedSize; t++) {
-			((char *) (saveData))[t] = *(address + t + sizeof(newSave));
-		}
-
-		if (ownsData) delete[] this->saveData;
-		save = newSave;
-		saveCompressed = true;
-		this->saveData = saveData;
-		ownsData = true;
-		ptr = 0;
-
-		return true;
-	}
-
-	return false;
-}
-
-void DSSaveFile::compress() {
-	if (!saveCompressed) {
-		unsigned char *compBuffer = new unsigned char[(save.size * 110) / 100];
-		int compSize = LZ_Compress((u8 *) saveData, compBuffer, save.size);
-		save.compressedSize = compSize;
-
-
-
-		delete[] saveData;
-
-		// Make the save smaller
-		saveData = (u8 *) realloc(compBuffer, save.compressedSize);
-		saveCompressed = true;
-	}
-}
-
-int DSSaveFile::saveToSaveRAM(vu8 *address) {
-
-	unsigned char *compBuffer;
-	bool failed;
-
-
-	int compSize;
-
-	compress();
-
-	compSize = save.compressedSize;
-	compBuffer = saveData;
-
-	if (DSSaveFileManager::instance()->getBytesFree() >= getRamUsage()) {
-
-		DSSaveFileManager::instance()->addBytesFree(-getRamUsage());
-
-		// Write header
-		for (int t = 0; t < sizeof(save); t++) {
-			while (*(address + t) != ((char *) (&save))[t]) {
-				*(address + t) = ((char *) (&save))[t];
-			}
-		}
-
-		// Write compressed buffer
-		for (int t = sizeof(save); t < (int) sizeof(save) + compSize; t++) {
-			while (*(address + t) != compBuffer[t - sizeof(save)]) {
-				*(address + t) = compBuffer[t - sizeof(save)];
-			}
-		}
-
-		failed = false;
-	} else {
-		failed = true;
-	}
-
-
-	return failed? 0: compSize + sizeof(save);
-
-}
-
-void DSSaveFile::reset() {
-	ptr = 0;
-	eosReached = false;
-}
-
-uint32 DSSaveFile::read(void *buf, uint32 size) {
-	if (ptr + size > save.size) {
-		size = save.size - ptr;
-		eosReached = true;
-		if (size < 0) size = 0;
-	}
-	memcpy(buf, saveData + ptr, size);
-//	consolePrintf("byte: %d ", ((u8 *) (buf))[0]);
-
-	ptr += size;
-	return size;
-}
-
-int32 DSSaveFile::pos() const {
-	return ptr;
-}
-
-int32 DSSaveFile::size() const {
-	return save.size;
-}
-
-bool DSSaveFile::seek(int32 pos, int whence) {
-	switch (whence) {
-		case SEEK_SET: {
-			ptr = pos;
-			break;
-		}
-		case SEEK_CUR: {
-			ptr += pos;
-			break;
-		}
-		case SEEK_END: {
-			ptr = save.size + pos;
-			break;
-		}
-	}
-	eosReached = false;
-	return true;
-}
-
-bool DSSaveFile::eos() const {
-	return eosReached;
-}
-
-void DSSaveFile::clearErr() {
-	eosReached = false;
-}
-
-bool DSSaveFile::skip(uint32 bytes) {
-	ptr = ptr + bytes;
-	if (ptr > (int) save.size) ptr = save.size;
-	return true;
-}
-
-uint32 DSSaveFile::write(const void *buf, uint32 size) {
-
-	if (ptr + size > DS_MAX_SAVE_SIZE) {
-		size = DS_MAX_SAVE_SIZE - ptr;
-	}
-
-	memcpy(saveData + ptr, buf, size);
-	ptr += size;
-	save.size += size;
-	return size;
-}
-
-bool DSSaveFile::matches(const char *prefix, int num) {
-	char str[16];
-	if (isValid()) {
-		sprintf(str, "%s%02d", prefix, num);
-		if (!strcmp(str, save.name)) {
-			return true;
-		} else {
-			return false;
-		}
-	} else {
-		return false;
-	}
-}
-
-bool DSSaveFile::matches(const char *filename) {
-	if (isValid()) {
-		return !strcmp(save.name, filename);
-	} else {
-		return false;
-	}
-}
-
-void DSSaveFile::setName(char *name) {
-	save.isValid = true;
-	save.magic = 0xBEEFCAFE;
-	ownsData = true;
-	save.size = 0;
-	save.compressedSize = 0;
-	saveData = new unsigned char[DS_MAX_SAVE_SIZE];
-	strcpy(save.name, name);
-
-	if ((strstr(name, ".s99")) || (strstr(name, ".c"))) {
-		isTempFile = true;
-	} else {
-		isTempFile = false;
-	}
-}
-
-void DSSaveFile::clearData() {
-	save.size = 0;
-
-	if (saveCompressed) {
-		if (ownsData) {
-			delete[] saveData;
-			DSSaveFileManager::instance()->addBytesFree(getRamUsage());
-		}
-		saveData = new unsigned char[DS_MAX_SAVE_SIZE];
-		saveCompressed = false;
-		ownsData = true;
-	}
-
-}
-
-void DSSaveFile::deleteFile() {
-	if (isValid()) {
-		if (ownsData) {
-			DSSaveFileManager::instance()->addBytesFree(getRamUsage());
-			delete[] saveData;
-			saveData = NULL;
-		}
-		ptr = 0;
-		saveCompressed = false;
-		save.isValid = false;
-		ownsData = false;
-		isOpenFlag = true;
-	}
-}
-
-DSSaveFileManager::DSSaveFileManager() {
-	instancePtr = this;
-
-	*((u16 *) (0x4000204)) |= 0x3;
-	swiWaitForVBlank();
-
-	loadAllFromSRAM();
-}
-
-DSSaveFileManager::~DSSaveFileManager() {
-	instancePtr = NULL;
-}
-
-void DSSaveFileManager::loadAllFromSRAM() {
-	int addr = 1;
-
-	for (int r = 0; r < 8; r++) {
-		gbaSave[r].deleteFile();
-	}
-
-	sramBytesFree = SRAM_SAVE_MAX;
-
-	// Try to find saves in save RAM
-	for (int r = 0; r < 8; r++) {
-		if (gbaSave[r].loadFromSaveRAM(CART_RAM + addr)) {
-			addr += gbaSave[r].getRamUsage();
-			sramBytesFree -= gbaSave[r].getRamUsage();
-		}
-	}
-
-}
-
-void DSSaveFileManager::formatSram() {
-	for (int r = 0; r < SRAM_SAVE_MAX; r++) {
-		*(CART_RAM + r) = 0;
-	}
-
-	loadAllFromSRAM();
-}
-
-void DSSaveFileManager::listFiles() {
-	for (int r = 0; r < 8; r++) {
-		if (gbaSave[r].isValid()) {
-			consolePrintf("'%s': %d bytes\n", gbaSave[r].getName(), gbaSave[r].getRamUsage());
-		}
-	}
-	consolePrintf("SRAM free: %d bytes\n", getBytesFree());
-}
-
-DSSaveFileManager *DSSaveFileManager::instancePtr = NULL;
-
-DSSaveFile *DSSaveFileManager::openSavefile(const char *filename, bool saveOrLoad) {
-	for (int r = 0; r < 8; r++) {
-		if (gbaSave[r].isValid() && (gbaSave[r].matches(filename))) {
-//			consolePrintf("Matched save %d (%d)\n", r, gbaSave[r].getSize());
-			gbaSave[r].reset();
-			//consolePrintf("reset ");
-			if (saveOrLoad) gbaSave[r].clearData();
-//			consolePrintf("cleared ");
-			return gbaSave[r].clone();
-		}
-	}
-
-	if (saveOrLoad) {
-		return makeSaveFile(filename, saveOrLoad);
-	} else {
-		return NULL;
-	}
-}
-
-
-
-DSSaveFile *DSSaveFile::clone() {
-//	consolePrintf("Clone %s %d\n", save.name, save.size);
-	return new DSSaveFile(&save, saveCompressed, saveData);
-}
-
-void DSSaveFileManager::deleteFile(const char *name) {
-//	consolePrintf("Deleting %s", name);
-	for (int r = 0; r < 8; r++) {
-		if (gbaSave[r].isValid() && (gbaSave[r].matches(name))) {
-			gbaSave[r].deleteFile();
-		}
-	}
-	flushToSaveRAM();
-}
-
-bool DSSaveFileManager::removeSavefile(const Common::String &filename) {
-	consolePrintf("DSSaveFileManager::removeSavefile : Not implemented yet.\n");
-	assert(false);
-	//TODO: Implement this. Most likely, you just have to use the code of deleteFile?
-	return false;
-}
-
-
-Common::StringArray DSSaveFileManager::listSavefiles(const Common::String &pattern) {
-	consolePrintf("DSSaveFileManager::listSavefiles : Not implemented yet.\n");
-	assert(false);
-	return Common::StringArray();
-	/*
-	TODO: Implement this. If you don't understand what it should do, just ask
-	(e.g. on scummvm-devel or Fingolfin). It should be pretty simple if you
-	use Common::matchString from common/util.h and read the Doxygen docs,
-	then combine this with the old code below...
-	*/
-}
-
-
-/*
-void DSSaveFileManager::listSavefiles(const char *prefix, bool *marks, int num) {
-	memset(marks, true, num * sizeof(bool));
-	return;
-
-	memset(marks, false, num*sizeof(bool));
-
-	for (int saveNum = 0; saveNum < num; saveNum++) {
-		for (int r = 0; r < 8; r++) {
-			if (gbaSave[r].isValid() && (gbaSave[r].matches(prefix, saveNum))) {
-				marks[saveNum] = true;
-			}
-		}
-	}
-
-}
-*/
-
-
-DSSaveFile *DSSaveFileManager::makeSaveFile(const char *filename, bool saveOrLoad) {
-
-	// Find a free save slot
-	int r = 0;
-
-	while ((r < 8) && (gbaSave[r].isValid())) {
-		r++;
-	}
-
-	if ((r == 8) && (gbaSave[r].isValid())) {
-		// No more saves
-		return NULL;
-	} else {
-		// Allocate this save
-//		consolePrintf("Allocated save %d\n", r);
-		gbaSave[r].setName((char *) filename);
-		gbaSave[r].reset();
-		return gbaSave[r].clone();
-	}
-}
-
-void DSSaveFileManager::flushToSaveRAM() {
-	int cartAddr = 1;
-	int s;
-	int extraData = DSSaveFileManager::getExtraData();
-
-	*((u16 *) (0x4000204)) |= 0x3;
-
-	swiWaitForVBlank();
-
-	int size = 0;
-	for (int r = 0; (r < 8); r++) {
-		if (gbaSave[r].isValid()) {
-			gbaSave[r].compress();
-			if (!gbaSave[r].isTemp()) size += gbaSave[r].getRamUsage();
-		}
-	}
-
-	if (size <= SRAM_SAVE_MAX) {
-
-		for (int r = 0; r < SRAM_SAVE_MAX; r++) {
-			*(CART_RAM + r) = 0;
-		}
-
-		sramBytesFree = SRAM_SAVE_MAX;
-
-		for (int r = 0; (r < 8); r++) {
-			if (gbaSave[r].isValid() && (!gbaSave[r].isTemp())) {
-
-				cartAddr += s = gbaSave[r].saveToSaveRAM(CART_RAM + cartAddr);
-
-	/*			if (s == 0) {
-					consolePrintf("WARNING: Save didn't fit in cart RAM and has been lost!!  Delete files and save again.", gbaSave[r].getName());
-					failed = true;
-				}*/
-			}
-		}
-	} else {
-
-		consolePrintf("WARNING: Save didn't fit in cart RAM and has been lost!!  Delete files and save again.");
-		loadAllFromSRAM();
-
-	}
-
-	DSSaveFileManager::setExtraData(extraData);
-//	consolePrintf("SRAM free: %d bytes\n", getBytesFree());
-}
-
-void DSSaveFileManager::setExtraData(int data) {
-	// Offset of extra data is 31.  This overlaps the padding and reserved bytes of the first save entry.
-	// which have not been used up until now.  So it should be safe.
-
-	vu8 *sram = CART_RAM + 31;
-
-	*(sram + 0) = 0xF0;		// This is an identifier to check
-	*(sram + 1) = 0x0D;		// that extra data is present.
-
-	*(sram + 2) = (data & 0xFF000000) >> 24;		// Now write the actual data
-	*(sram + 3) = (data & 0x00FF0000) >> 16;		// taking care to use single
-	*(sram + 4) = (data & 0x0000FF00) >> 8;			// byte writes (it's an 8-bit bus)
-	*(sram + 5) = (data & 0x000000FF);
-}
-
-bool DSSaveFileManager::isExtraDataPresent() {
-	vu8 *sram = CART_RAM + 31;
-
-	// Check for the identifier
-	return ((*(sram + 0) == 0xF0) && (*(sram + 1) == 0x0D));
-}
-
-int DSSaveFileManager::getExtraData() {
-	vu8 *sram = CART_RAM + 31;
-
-	if (isExtraDataPresent()) {
-		int value = (*(sram + 2) << 24) | (*(sram + 3) << 16) | (*(sram + 4) << 8) | (*(sram + 5));
-		return value;
-	} else {
-		return 0;
-	}
-}
-
-#endif
diff --git a/backends/platform/ds/arm9/source/ramsave.h b/backends/platform/ds/arm9/source/ramsave.h
deleted file mode 100644
index f2cfe0fc0b..0000000000
--- a/backends/platform/ds/arm9/source/ramsave.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/* 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 _RAMSAVE_H_
-#define _RAMSAVE_H_
-
-#include <nds/ndstypes.h>
-#include "common/system.h"
-#include "common/savefile.h"
-
-
-// SaveFileManager class
-
-#define DS_MAX_SAVE_SIZE 150000
-
-class DSSaveFile : public Common::InSaveFile, public Common::OutSaveFile {
-	int address;
-	int ptr;
-	bool ownsData;
-	bool saveCompressed;
-
-	struct SCUMMSave {
-		u32 magic;		// 4
-		bool isValid;	// 5
-		bool pad;		// 6
-		char name[16];	// 22
-		u32 size;		// 26
-		u32 compressedSize; // 30
-		u16 extraMagic;	// 32
-		u32 reserved;	// 36
-	} __attribute__ ((packed));
-
-	SCUMMSave save;
-	u8 *saveData;
-	SCUMMSave *origHeader;
-	bool isOpenFlag;
-	bool isTempFile;
-	bool eosReached;
-
-public:
-	DSSaveFile();
-	DSSaveFile(SCUMMSave *s, bool saveCompressed, u8 *data);
-	~DSSaveFile();
-
-	void reset();
-
-	bool isOpen() const { return isOpenFlag; }
-	virtual bool eos() const;
-	virtual void clearErr();
-	virtual bool skip(uint32 size);
-
-	virtual int32 pos() const;
-	virtual int32 size() const;
-	virtual bool seek(int32 pos, int whence);
-
-	uint32 read(void *buf, uint32 size);
-	uint32 write(const void *buf, uint32 size);
-
-	void setName(char *name);
-	char *getName() { return save.name; }
-
-	bool isValid() { return save.isValid; }
-	bool isTemp() { return isTempFile; }
-	bool matches(const char *prefix, int num);
-	bool matches(const char *filename);
-
-	void clearData();
-	void compress();
-
-	int getRamUsage() { return sizeof(save) + save.compressedSize; }
-	char *getRamImage() { return (char *) &save; }
-
-	int getSize() { return save.size; }
-
-	DSSaveFile *clone();
-
-	bool loadFromSaveRAM(vu8 *address);
-	int saveToSaveRAM(vu8 *address);
-
-
-
-	void deleteFile();
-
-	void operator delete(void *p) {
-//		consolePrintf("Finished! size=%d\n", ((DSSaveFile *) (p))->save->size);
-	}
-
-
-
-};
-
-
-
-class DSSaveFileManager : public Common::SaveFileManager {
-
-	DSSaveFile gbaSave[8];
-	static DSSaveFileManager *instancePtr;
-	int sramBytesFree;
-
-public:
-	DSSaveFileManager();
-	~DSSaveFileManager();
-
-	static DSSaveFileManager *instance() { return instancePtr; }
-
-	DSSaveFile *openSavefile(const char *filename, bool saveOrLoad);
-
-	virtual Common::OutSaveFile *openForSaving(const Common::String &filename) { return openSavefile(filename.c_str(), true); }
-	virtual Common::InSaveFile *openForLoading(const Common::String &filename) { return openSavefile(filename.c_str(), false); }
-
-	virtual bool removeSavefile(const Common::String &filename);
-	virtual Common::StringArray listSavefiles(const Common::String &pattern);
-
-	void flushToSaveRAM();
-
-	void addBytesFree(int size) { sramBytesFree += size; }
-	int getBytesFree() { return sramBytesFree; }
-
-	void deleteFile(char *name);
-	void listFiles();
-	void formatSram();
-
-	void loadAllFromSRAM();
-
-	static bool isExtraDataPresent();
-	static int getExtraData();
-	static void setExtraData(int data);
-
-protected:
-	DSSaveFile *makeSaveFile(const Common::String &filename, bool saveOrLoad);
-};
-
-#endif