Merge pull request #7 from Kermalis/master

Some save.c functions + add libisagbprn

1 files changed, 209 insertions, 2 deletions

diff --git a/src/save.c b/src/save.c
index 5d39bfe..6478c12 100644
--- a/src/save.c
+++ b/src/save.c
@@ -1,10 +1,55 @@
 #include "global.h"
+#include "flash.h"
+#include "memory.h"
 
+struct UnkStruct_203B184 {
+    u8 fill000[0x4C];
+    u8 *unk04C;
+    u32 unk050;
+    u32 unk054;
+    u32 unk058;
+};
+
+struct UnkStruct_sub_8011DAC {
+    u8 fill000[0x4];
+    u8 unk004[0x400];
+    u8 fill404[0x10];
+    u32 unk414;
+    u32 unk418;
+    u32 unk41C;
+    u32 unk420;
+    u32 unk424;
+    u32 unk428;
+    u8 fill42C[0x4];
+    u32 unk430;
+    u32 unk434;
+    u32 unk438;
+    u32 unk43C;
+    u32 unk440;
+    u32 unk444;
+    u8 fill448[0x538C];
+};
+
+extern u32 gUnknown_202DE28;
 extern u32 gUnknown_203B17C;
 extern u32 gUnknown_203B180;
-extern u32 *gUnknown_203B184;
-extern u32 gUnknown_202DE28;
+extern volatile struct UnkStruct_203B184 *gUnknown_203B184;
 
+extern void* MemoryAlloc(u32 a, u32 b);
+extern void MemoryFree(void* a);
+extern void SetRngState(s32 state);
+extern bool8 sub_8002718(u8 *a);
+extern bool8 sub_800DAB0(u16, u8*, s32);
+extern bool8 sub_800DAB4(u16, u8*, s32);
+extern bool8 sub_800DAB8(void);
+extern u32 sub_808EE9C(void* a, s32 b);
+extern u32 sub_808F2B0(void* a, s32 b);
+extern u32 sub_8091D14(void* a, s32 b);
+extern u32 sub_809222C(void* a, s32 b);
+extern u32 sub_80927F4(void* a, s32 b);
+extern u32 sub_80954CC(void* a, s32 b);
+extern u32 sub_8096FA0(void* a, s32 b);
+extern u32 sub_8097D98(void* a, s32 b);
 
 u32 sub_8011C1C(void)
 {
@@ -62,3 +107,165 @@ bool8 ValidateChecksum(u8 *in, u32 size)
         return TRUE;
     return FALSE;
 }
+
+void sub_8011CA8(u32 *out, s32 size)
+{
+    if (gUnknown_203B184 == NULL) {
+        AGB_WARNING("A warning most likely went here.");
+        *out += (size + 0xFFF) / 0x1000;
+    } else {
+        *out += (size + 0xFFF) / 0x1000;
+    }
+}
+
+u32 WriteSaveSector(s32 *a, u8 *src, s32 size)
+{
+    u32 r1;
+    s32 r6 = *a;
+    sub_8011CA8(a, size);
+    CalculateChecksum(src, size);
+    if (gUnknown_203B184 == NULL) {
+        r1 = WriteFlashData(r6, src, size);
+    }
+    else if (sub_800DAB8()) {
+        if (!sub_800DAB4(r6, src, size)) {
+            r1 = 3;
+        }
+        else {
+            r1 = 0;
+        }
+    }
+    else {
+        return 2;
+    }
+    if (r1 == 4) {
+        return 1;
+    }
+    if (r1) {
+        return 2;
+    }
+    return 0;
+}
+
+u32 ReadSaveSector(s32 *a, u8 *dest, s32 size)
+{
+    u32 r1;
+    s32 r6 = *a;
+    sub_8011CA8(a, size);
+    if (gUnknown_203B184 == NULL) {
+        r1 = ReadFlashData(r6, dest, size);
+    }
+    else if (sub_800DAB8()) {
+        if (!sub_800DAB0(r6, dest, size)) {
+            r1 = 1;
+        }
+        else {
+            r1 = 0;
+        }
+    }
+    else {
+        return 1;
+    }
+    if (r1) {
+        return 1;
+    }
+    if (ValidateChecksum(dest, size)) {
+        return 2;
+    }
+    return 0;    
+}
+
+bool8 sub_8011DA8(void)
+{
+    return TRUE;
+}
+
+u32 sub_8011DAC(u32 *a)
+{
+    struct UnkStruct_sub_8011DAC *r5 = MemoryAlloc(sizeof(struct UnkStruct_sub_8011DAC), 5);
+    u8 *r4 = (u8*)r5->fill448;
+    u32 r7 = ReadSaveSector(a, (u8*)r5, sizeof(struct UnkStruct_sub_8011DAC));
+    u32 r1;
+    if (r7)
+    {
+        r7 = ReadSaveSector(a, (u8*)r5, sizeof(struct UnkStruct_sub_8011DAC));
+    }
+    else
+    {
+        sub_8011CA8(a, sizeof(struct UnkStruct_sub_8011DAC));
+    }
+    if (!r7)
+    {
+        if (r5->unk414 != 0x5071412) {
+            r7 = 4;
+        }
+    }
+    if (!r7)
+    {
+        if (gUnknown_203B184 == NULL) {
+            sub_8011C28(r5->unk41C);
+            sub_8011C40(r5->unk418);
+            SetRngState(r5->unk420);
+        }
+        else {
+            gUnknown_203B184->unk054 = r5->unk41C;
+            gUnknown_203B184->unk050 = r5->unk418;
+            gUnknown_203B184->unk058 = r5->unk420;
+        }
+    }
+    if (!r7)
+    {
+        if (gUnknown_203B184 == NULL) {
+            if (!sub_8002718(r5->unk004)) {
+                r7 = 4;
+            }
+        }
+        else {                    
+            MemoryCopy8(gUnknown_203B184->unk04C, r5->unk004, ARRAY_COUNT(r5->unk004));
+        }
+    }
+    if (!r7)
+    {
+        r1 = sub_808EE9C(r4, 0x4650);
+        if (r1 != r5->unk424) {
+            r7 = 3;
+        }
+        r4 += 0x4650;
+        r1 = sub_808F2B0(r4, 0x258);
+        if (r1 != r5->unk428) {
+            r7 = 3;
+        }
+        r4 += 0x258;
+        r1 = sub_8091D14(r4, 0x1D8);
+        if (r1 != r5->unk430) {
+            r7 = 3;
+        }
+        r4 += 0x1d8;
+        r1 = sub_809222C(r4, 0x10);
+        if (r1 != r5->unk434) {
+            r7 = 3;
+        }
+        r4 += 0x10;
+        r1 = sub_80927F4(r4, 0x8);
+        if (r1 != r5->unk438) {
+            r7 = 3;
+        }
+        r4 += 0x8;
+        r1 = sub_8097D98(r4, 0x100);
+        if (r1 != r5->unk43C) {
+            r7 = 3;
+        }
+        r4 += 0x100;
+        r1 = sub_80954CC(r4, 0x594);
+        if (r1 != r5->unk440) {
+            r7 = 3;
+        }
+        r4 += 0x594;
+        r1 = sub_8096FA0(r4, 0x221);
+        if (r1 != r5->unk444) {
+            r7 = 3;
+        }
+    }
+    MemoryFree(r5);
+    return r7;
+}