diff --git a/lib/CPUs/MIPS/tools/Makefile b/lib/CPUs/MIPS/tools/Makefile
index 1c8ef53..852df6b 100644
--- a/lib/CPUs/MIPS/tools/Makefile
+++ b/lib/CPUs/MIPS/tools/Makefile
@@ -10,13 +10,11 @@ ramgen: ./src/ramgen.c
 	$(CC) $(CFLAGS) ./src/ramgen.c -lm -o ./ramgen
 
 flashgen: ./src/flashgen.c
-	$(CC) $(CFLAGS) ./src/flashgen.c -lm -o ./flashgen_el
-	$(CC) $(CFLAGS) -DTARGET_IS_BIG_ENDIAN ./src/flashgen.c -lm -o ./flashgen_eb
+	$(CC) $(CFLAGS) ./src/flashgen.c -lm -o ./flashgen
 
 install:
 	cp romgen $(PREFIX)/bin
 	cp ramgen $(PREFIX)/bin
-	cp flashgen_el $(PREFIX)/bin
-	cp flashgen_eb $(PREFIX)/bin
+	cp flashgen $(PREFIX)/bin
 clean:
 	rm -rf romgen* ramgen* flashgen*
diff --git a/lib/CPUs/MIPS/tools/src/flashgen.c b/lib/CPUs/MIPS/tools/src/flashgen.c
index cc775a7..a6b5470 100644
--- a/lib/CPUs/MIPS/tools/src/flashgen.c
+++ b/lib/CPUs/MIPS/tools/src/flashgen.c
@@ -17,6 +17,9 @@
 #define SDRAM_BASE			0x40000000
 #define	FLASH_OFFSET		0x00000000
 
+#define	MAGIC_EB	0x4A464931	// "JFI1" in big-endian;
+#define	MAGIC_EL	0x3149464A	// "JFI1" in little-endian;
+
 UINT32 conv_endian32(UINT32 src)
 {
 	UINT32 dst;
@@ -29,28 +32,10 @@ UINT32 conv_endian32(UINT32 src)
 	return dst;
 };
 
-UINT32 to_big_endian32(UINT32 src)
-{
-#ifndef NATIVE_IS_BIG_ENDIAN
-	return conv_endian32(src);
-#else
-	return src;
-#endif
-}
-
-UINT32 from_big_endian32(UINT32 src)
-{
-#ifndef NATIVE_IS_BIG_ENDIAN
-	return conv_endian32(src);
-#else
-	return src;
-#endif
-}
-
 // --------------------------------------------------------------
 typedef struct _sflash_img_hdr_t
 {
-	UINT8 magic[4];
+	UINT32 magic;
 	UINT32 target_addr;
 	UINT32 img_offset;
 	UINT32 img_size;
@@ -84,6 +69,7 @@ int main(int argc, char *argv[])
 	char name_flash[1024];
 	char name_prj[1024];
 	char *pBuf;
+	UINT32 *pBuf32;
 	flash_img_hdr_t img_hdr = {0};
 
 	FILE *pFile;
@@ -93,7 +79,7 @@ int main(int argc, char *argv[])
 
 	if (argc < 2)
 	{
-		fprintf(stderr, "Usage: flashgen <input file>\n");
+		fprintf(stderr, "Usage: flashgen <input file> [-{EL|EB}]\n");
 		return 1;
 	}
 
@@ -128,21 +114,22 @@ int main(int argc, char *argv[])
 		return 1;
 	}
 
-	img_hdr.magic[0] = 'J';
-	img_hdr.magic[1] = 'F';
-	img_hdr.magic[2] = 'I';
-	img_hdr.magic[3] = '1';
-#ifdef TARGET_IS_BIG_ENDIAN
-	img_hdr.target_addr = to_big_endian32(SDRAM_BASE);
-	img_hdr.img_size = to_big_endian32(filesize);
-	img_hdr.img_offset = to_big_endian32(FLASH_OFFSET + sizeof(flash_img_hdr_t));
-	img_hdr.hdr_next = to_big_endian32(FLASH_OFFSET);
-#else
+	img_hdr.magic = MAGIC_EL;
 	img_hdr.target_addr = SDRAM_BASE;
 	img_hdr.img_size = filesize;
 	img_hdr.img_offset = FLASH_OFFSET + sizeof(flash_img_hdr_t);
 	img_hdr.hdr_next = FLASH_OFFSET;
-#endif
+
+	if (argc == 3)
+	{
+		if ((argv[2][0] == '-') && (toupper(argv[2][1]) == 'E') && (toupper(argv[2][2]) == 'B'))
+		{
+			img_hdr.magic = MAGIC_EB;
+			pBuf32 = (UINT32*)pBuf;
+			for (i=0; i < filesize/4; i ++)
+				pBuf32[i] = conv_endian32(pBuf32[i]);
+		}
+	}
 	fwrite(&img_hdr, sizeof(flash_img_hdr_t), 1, pFile);
 	fwrite(pBuf, 1, filesize, pFile);
 
diff --git a/lib/CPUs/MIPS/tools/src/romgen.c b/lib/CPUs/MIPS/tools/src/romgen.c
index 60c00c3..f674a6a 100644
--- a/lib/CPUs/MIPS/tools/src/romgen.c
+++ b/lib/CPUs/MIPS/tools/src/romgen.c
@@ -399,7 +399,7 @@ int main(int argc, char *argv[])
 
 	if (argc < 2)
 	{
-		fprintf(stderr, "Usage: romgen <input file> <num. word address bits> [{EL|EB}]\n");
+		fprintf(stderr, "Usage: romgen <input file> <num. word address bits> [-{EL|EB}]\n");
 		return 1;
 	}
 
@@ -409,11 +409,10 @@ int main(int argc, char *argv[])
 	g_endianess_EB = 0;
 	if (argc == 4)
 	{
-		if ((toupper(argv[3][0]) == 'E') && (toupper(argv[3][1]) == 'B'))
+		if ((argv[3][0] == '-') && (toupper(argv[3][1]) == 'E') && (toupper(argv[3][2]) == 'B'))
 			g_endianess_EB = 1;
 	}
 
-
 	basename(pFilenameIn, name_prj);
 	sprintf(name_rom, "%s.vhd", name_prj);
 	sprintf(name_rom_v4ld, "%s_ld.vhd", name_prj);