Merge pull request #4 from nullableVoidPtr/master

Overhaul

1 files changed, 64 insertions, 0 deletions

diff --git a/src/save.c b/src/save.c
new file mode 100644
index 0000000..5d39bfe
--- /dev/null
+++ b/src/save.c
@@ -0,0 +1,64 @@
+#include "global.h"
+
+extern u32 gUnknown_203B17C;
+extern u32 gUnknown_203B180;
+extern u32 *gUnknown_203B184;
+extern u32 gUnknown_202DE28;
+
+
+u32 sub_8011C1C(void)
+{
+    return gUnknown_203B17C;
+}
+
+void sub_8011C28(u32 in)
+{
+    gUnknown_203B17C = in;
+}
+
+u32 sub_8011C34(void)
+{
+    return gUnknown_202DE28;
+}
+
+void sub_8011C40(u32 in)
+{
+    gUnknown_202DE28 = in;
+}
+
+u32 sub_8011C4C(void)
+{
+    return gUnknown_203B180;
+}
+
+void CalculateChecksum(u8 *out, u32 size)
+{
+    u32 checksum = 0;
+    s32 i = size / 4;
+    if (i > 1)
+    {
+        u32 *ptr = (u32 *)&out[4];
+        --i;
+        do
+            checksum += *ptr++;
+        while (--i);
+    }
+    *(u32 *)out = checksum;
+}
+
+bool8 ValidateChecksum(u8 *in, u32 size)
+{
+    u32 checksum = 0;
+    s32 i = size / 4;
+    if (i > 1)
+	{
+        u32 *ptr = (u32 *)&in[4];
+        --i;
+        do
+            checksum += *ptr++;
+        while (--i);
+	}
+    if (*(u32 *)in != checksum)
+        return TRUE;
+    return FALSE;
+}