From 116e6e6ca3a10a236a1d665893aba7864f9d43f8 Mon Sep 17 00:00:00 2001
From: cyberwarriorx <cyberwarriorx@users.sf.net>
Date: Tue, 3 Oct 2006 20:59:50 +0000
Subject: [PATCH] -saves.cpp/saves.hpp has been moved out of /src/windows since
 it isn't port specific. Code has also been made more portable and cleaned up.
 More work still needs to be done.

---
 desmume/src/saves.c | 125 ++++++++++++++++++++++++++++++++++++++++++++
 desmume/src/saves.h |  25 +++++++++
 2 files changed, 150 insertions(+)
 create mode 100644 desmume/src/saves.c
 create mode 100644 desmume/src/saves.h

diff --git a/desmume/src/saves.c b/desmume/src/saves.c
new file mode 100644
index 000000000..fb49f3558
--- /dev/null
+++ b/desmume/src/saves.c
@@ -0,0 +1,125 @@
+#ifdef HAVE_LIBZ
+#include <zlib.h>
+#endif
+#include <stdio.h>
+#include "saves.h"
+#include "MMU.hpp"
+
+u8 sram_read (u32 address) {
+	address = address - SRAM_ADDRESS;
+	
+	if ( address > SRAM_SIZE )
+		return 0;
+
+	return MMU.CART_RAM[address];
+
+}
+
+void sram_write (u32 address, u8 value) {
+
+	address = address - SRAM_ADDRESS;
+
+	if ( address < SRAM_SIZE )
+		MMU.CART_RAM[address] = value;
+	
+}
+
+int sram_load (const char *file_name) {
+	
+	FILE *file;
+
+	file = fopen ( file_name, "rb" );
+	if( file == NULL )
+		return 0;
+
+	fread ( MMU.CART_RAM, SRAM_SIZE, 1, file );
+
+	fclose ( file );
+
+	return 1;
+
+}
+
+int sram_save (const char *file_name) {
+
+	FILE *file;
+
+	file = fopen ( file_name, "wb" );
+	if( file == NULL )
+		return 0;
+
+	fwrite ( MMU.CART_RAM, SRAM_SIZE, 1, file );
+
+	fclose ( file );
+
+	return 1;
+
+}
+
+int savestate_load (const char *file_name)    {
+#ifdef HAVE_LIBZ
+	
+	gzFile file;
+
+	file = gzopen( file_name, "rb" );
+	if( file == NULL )
+		return 0;
+
+        gzread ( file, ARM9Mem.ARM9_ITCM, 0x8000 );
+        gzread ( file, ARM9Mem.ARM9_DTCM, 0x4000 );
+	////fread ( MMU::ARM9_WRAM, 0x1000000, 1, file );
+    gzread ( file, ARM9Mem.MAIN_MEM, 0x400000 );
+    gzread ( file, ARM9Mem.ARM9_REG, 0x10000 );
+    gzread ( file, ARM9Mem.ARM9_VMEM, 0x800 );
+    gzread ( file, ARM9Mem.ARM9_OAM, 0x800 );
+    
+    gzread ( file, ARM9Mem.ARM9_ABG, 0x80000 );
+    gzread ( file, ARM9Mem.ARM9_BBG, 0x20000 );
+    gzread ( file, ARM9Mem.ARM9_AOBJ, 0x40000 );
+    gzread ( file, ARM9Mem.ARM9_BOBJ, 0x20000 );
+    gzread ( file, ARM9Mem.ARM9_LCD, 0xA4000 );
+    
+    //ARM7 memory
+    //gzread ( file, MMU::ARM7_ERAM, 0x10000 );
+    //gzread ( file, MMU::ARM7_REG, 0x10000 );
+    //gzread ( file, MMU::ARM7_WIRAM, 0x10000 );
+
+	gzclose ( file );
+
+	return 1;
+#endif
+}
+
+int savestate_save (const char *file_name)    {
+#ifdef HAVE_LIBZ
+	gzFile file;
+
+	file = gzopen( file_name, "wb" );
+	if( file == NULL )
+		return 0;
+
+        gzwrite ( file, ARM9Mem.ARM9_ITCM, 0x8000 );
+        gzwrite ( file ,ARM9Mem.ARM9_DTCM, 0x4000 );
+	////fwrite ( MMU::ARM9_WRAM, 0x1000000, 1, file );
+    gzwrite ( file, ARM9Mem.MAIN_MEM, 0x400000 );
+    gzwrite ( file, ARM9Mem.ARM9_REG, 0x10000 );
+    gzwrite ( file, ARM9Mem.ARM9_VMEM, 0x800 );
+    gzwrite ( file, ARM9Mem.ARM9_OAM, 0x800 );
+    
+    gzwrite ( file, ARM9Mem.ARM9_ABG, 0x80000 );
+    gzwrite ( file, ARM9Mem.ARM9_BBG, 0x20000 );
+    gzwrite ( file, ARM9Mem.ARM9_AOBJ, 0x40000 );
+    gzwrite ( file, ARM9Mem.ARM9_BOBJ, 0x20000 );
+    gzwrite ( file, ARM9Mem.ARM9_LCD, 0xA4000 );
+    
+    //ARM7 memory
+    //gzwrite ( file, MMU::ARM7_ERAM, 0x10000 );
+    //gzwrite ( file, MMU::ARM7_REG, 0x10000 );
+    //gzwrite ( file, MMU::ARM7_WIRAM, 0x10000 );
+
+	gzclose ( file );
+
+	return 1;
+#endif
+}
+
diff --git a/desmume/src/saves.h b/desmume/src/saves.h
new file mode 100644
index 000000000..98277d7dc
--- /dev/null
+++ b/desmume/src/saves.h
@@ -0,0 +1,25 @@
+#ifndef _SRAM_H
+#define _SRAM_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "types.h"
+
+	#define SRAM_ADDRESS	0x0A000000
+	#define SRAM_SIZE		0x10000
+
+        u8 sram_read (u32 address);
+        void sram_write (u32 address, u8 value);
+        int sram_load (const char *file_name);
+        int sram_save (const char *file_name);
+	
+        int savestate_load (const char *file_name);
+        int savestate_save (const char *file_name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif