1 files changed, 138 insertions, 0 deletions
diff --git a/src/m_Do/m_Do_ext2.cpp b/src/m_Do/m_Do_ext2.cpp
new file mode 100644
index 0000000000..9d4c18228f
--- /dev/null
+++ b/src/m_Do/m_Do_ext2.cpp
@@ -0,0 +1,138 @@
+
+#include "d/dolzel.h" // IWYU pragma: keep
+
+#include "m_Do/m_Do_ext2.h"
+
+FixedMemoryCheck* FixedMemoryCheck::sFirst;
+
+FixedMemoryCheck::FixedMemoryCheck(u32* param_1, u32 size, JKRHeap* heap) {
+    mNowCode = param_1;
+    mSize = size;
+    mSaveCode = NULL;
+    mpHeap = heap;
+    field_0x10 = 0;
+    field_0x14 = false;
+    mNext = NULL;
+    if (sFirst) {
+        mNext = sFirst;
+    }
+    sFirst = this;
+}
+
+FixedMemoryCheck* FixedMemoryCheck::easyCreate(void* param_1, u32 size) {
+    JKRHeap* heap = JKRGetRootHeap2();
+    FixedMemoryCheck* memCheck = new (heap, 0) FixedMemoryCheck((u32*)param_1, size, heap);
+    if (!memCheck) {
+        memCheck = new (JKRGetSystemHeap(), 0) FixedMemoryCheck((u32*)param_1, size, NULL);
+    }
+    if (memCheck) {
+        memCheck->alloc();
+        memCheck->save();
+        memCheck->check();
+    }
+    return memCheck;
+}
+
+BOOL FixedMemoryCheck::checkAll() {
+    BOOL result = true;
+    for (FixedMemoryCheck* memCheck = sFirst; memCheck; memCheck = memCheck->mNext) {
+        if (!memCheck->check()) {
+            result = false;
+        }
+    }
+    return result;
+}
+
+BOOL FixedMemoryCheck::diffAll() {
+    BOOL result = true;
+    for (FixedMemoryCheck* memCheck = sFirst; memCheck; memCheck = memCheck->mNext) {
+        if (!memCheck->diff()) {
+            result = false;
+        }
+    }
+    return result;
+}
+
+BOOL FixedMemoryCheck::saveAll() {
+    BOOL result = true;
+    for (FixedMemoryCheck* memCheck = sFirst; memCheck; memCheck = memCheck->mNext) {
+        if (!memCheck->save()) {
+            result = false;
+        }
+    }
+    return result;
+}
+
+BOOL FixedMemoryCheck::alloc() {
+    if (!mpHeap) {
+        OSReport_Error("FixedMemoryCheck::alloc ヒープ未設定\n");
+        return false;
+    }
+
+    if (mSaveCode) {
+        OSReport_Error("FixedMemoryCheck::alloc セーブ確保済み\n");
+        return false;
+    }
+
+    mSaveCode = (u32*)JKRAllocFromHeap(mpHeap, mSize, 4);
+    OSReport("FixedMemoryCheck::alloc: %dKB確保\n", mSize >> 10);
+    return mSaveCode != NULL;
+}
+
+BOOL FixedMemoryCheck::save() {
+    if (!mNowCode) {
+        OSReport_Error("FixedMemoryCheck::save 設定ミス\n");
+        return false;
+    }
+    if (mSaveCode) {
+        memcpy(mSaveCode, mNowCode, mSize);
+    }
+    u32 r28 = 0;
+    for (int i = 0; i < mSize / 4; i++) {
+        r28 += mNowCode[i];
+    }
+    field_0x10 = r28;
+    OSReport("FixedMemoryCheck::save: チェックサム=%08x\n", field_0x10);
+    field_0x14 = false;
+    return true;
+}
+
+BOOL FixedMemoryCheck::check() {
+    BOOL result = true;
+    if (!mSaveCode || !mNowCode) {
+        OSReport_Error("FixedMemoryCheck::check 設定ミス\n");
+        return false;
+    }
+    u32 r29 = 0;
+    for (int i = 0; i < mSize / 4; i++) {
+        r29 += mNowCode[i];
+    }
+    if (r29 != field_0x10) {
+        OSReport_Error("FixedMemoryCheck::check: チェックサム不一致 %08x : %08x\n", field_0x10, r29);
+        result = false;
+    }
+    if (mSaveCode) {
+        int cmp = memcmp(mSaveCode, mNowCode, mSize);
+        if(cmp) {
+            OSReport_Error("FixedMemoryCheck::check メモリ破壊発見 %08x %08x\n", mNowCode, mSize);
+            result = false;
+            if (!field_0x14) {
+                diff();
+                field_0x14 = true;
+            }
+        }
+    }
+    return result;
+}
+
+BOOL FixedMemoryCheck::diff() {
+    BOOL result = true;
+    OSReport("Address  SaveCode NowCode\n");
+    for (int i = 0; i < mSize / 4; i++) {
+        if (mSaveCode[i] != mNowCode[i]) {
+            result = false;
+            OSReport("%08x %08x %08x\n", mNowCode + i, mSaveCode[i], mNowCode[i]);
+        }
+    }
+    return result;
+}