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project64/Source/Project64/UserInterface/Debugger/Debugger-MemorySearch.cpp

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/****************************************************************************
* *
* Project64 - A Nintendo 64 emulator. *
* http://www.pj64-emu.com/ *
* Copyright (C) 2012 Project64. All rights reserved. *
* *
* License: *
* GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html *
* *
****************************************************************************/
#include "stdafx.h"
#include "DebuggerUI.h"
CDebugMemorySearch::CDebugMemorySearch(CDebuggerUI * debugger) :
CDebugDialog<CDebugMemorySearch>(debugger),
m_MemoryState(NULL),
m_MemoryStateSize(0)
{
}
CDebugMemorySearch::~CDebugMemorySearch()
{
if (m_MemoryState)
{
delete m_MemoryState;
}
}
void CDebugMemorySearch::AddAlignmentOptions(CComboBox & ctrl)
{
int Index = ctrl.AddString("32 bits (aligned)");
ctrl.SetItemData(Index, _32Bit);
Index = ctrl.AddString("16bits (aligned)");
ctrl.SetItemData(Index, _16Bit);
Index = ctrl.AddString("8bits");
ctrl.SetCurSel(Index);
ctrl.SetItemData(Index, _8Bit);
}
LRESULT CDebugMemorySearch::OnInitDialog(UINT /*uMsg*/, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& /*bHandled*/)
{
DlgSavePos_Init(DebuggerUI_MemorySearchPos);
m_PAddrStart.Attach(GetDlgItem(IDC_PADDR_START));
m_PAddrStart.SetDisplayType(CEditNumber32::DisplayHex);
m_SearchLen.Attach(GetDlgItem(IDC_ADDR_END));
m_SearchLen.SetDisplayType(CEditNumber32::DisplayHex);
m_SearchValue.Attach(GetDlgItem(IDC_SEARCH_VALUE));
m_SearchValue.SetDisplayType(CEditNumber32::DisplayDec);
m_SearchValue.SetValue(0);
m_MaxSearch.Attach(GetDlgItem(IDC_MAX_SEARCH));
m_MaxSearch.SetDisplayType(CEditNumber32::DisplayDec);
m_MaxSearch.SetValue(50000);
m_UnknownSize.Attach(GetDlgItem(IDC_UNKNOWN_ALIGN));
AddAlignmentOptions(m_UnknownSize);
m_ValueSize.Attach(GetDlgItem(IDC_VALUE_ALIGN));
AddAlignmentOptions(m_ValueSize);
m_SearchResults.Attach(GetDlgItem(IDC_LST_RESULTS));
m_SearchResults.AddColumn("ID", 0);
m_SearchResults.AddColumn("PAddr", 1);
m_SearchResults.AddColumn("Value", 2);
m_SearchResults.SetColumnWidth(0, 50);
m_SearchResults.SetColumnWidth(1, 75);
m_SearchResults.SetColumnWidth(2, 75);
m_SearchResults.SetExtendedListViewStyle(LVS_EX_FULLROWSELECT);
m_UnknownOptions.Attach(GetDlgItem(IDC_CMB_UNKNOWN));
m_HaveResults = false;
FixUnknownOptions(true);
SendMessage(GetDlgItem(IDC_RADIO_VALUE), BM_SETCHECK, BST_CHECKED, 0);
BOOL bHandled;
OnClicked(0, IDC_BTN_RDRAM, NULL, bHandled);
OnClicked(0, IDC_RADIO_VALUE, NULL, bHandled);
LoadWindowPos();
WindowCreated();
return TRUE;
}
void CDebugMemorySearch::OnExitSizeMove(void)
{
SaveWindowPos();
}
LRESULT CDebugMemorySearch::OnClicked(WORD /*wNotifyCode*/, WORD wID, HWND hWndCtl, BOOL& /*bHandled*/)
{
switch (wID)
{
case IDCANCEL:
EndDialog(0);
break;
case IDC_BTN_RDRAM:
m_PAddrStart.SetValue(0, true, true);
m_SearchLen.SetValue(g_MMU->RdramSize(), true, true);
break;
case IDC_BTN_ROM:
m_PAddrStart.SetValue(0x10000000, true, true);
m_SearchLen.SetValue(g_Rom->GetRomSize(), true, true);
break;
case IDC_BTN_SPMEM:
m_PAddrStart.SetValue(0x04000000, true, true);
m_SearchLen.SetValue(0x2000, true, true);
break;
case IDC_SEARCH_HEX:
{
bool bChecked = (SendMessage(hWndCtl, BM_GETSTATE, 0, 0) & BST_CHECKED) != 0;
m_SearchValue.SetDisplayType(bChecked ? CEditNumber32::DisplayHex : CEditNumber32::DisplayDec);
}
break;
case ID_POPUP_SHOWINMEMORYVIEWER:
{
LONG iItem = m_SearchResults.GetNextItem(-1, LVNI_SELECTED);
if (iItem == -1)
{
break;
}
int ItemId = m_SearchResults.GetItemData(iItem);
SearchResultItem & Result = m_SearchResult[ItemId];
m_Debugger->Debug_ShowMemoryLocation(Result.PAddr, false);
}
break;
case IDC_RADIO_UNKNOWN:
EnableUnknownOptions(true);
EnableValueOptions(false);
EnableTextOptions(false);
EnableJalOptions(false);
break;
case IDC_RADIO_VALUE:
EnableUnknownOptions(false);
EnableValueOptions(true);
EnableTextOptions(false);
EnableJalOptions(false);
break;
case IDC_RADIO_TEXT:
EnableUnknownOptions(false);
EnableValueOptions(false);
EnableTextOptions(true);
EnableJalOptions(false);
break;
case IDC_RADIO_JAL:
EnableUnknownOptions(false);
EnableValueOptions(false);
EnableTextOptions(false);
EnableJalOptions(true);
break;
case IDC_BTN_SEARCH:
if (SendMessage(GetDlgItem(IDC_RADIO_UNKNOWN), BM_GETSTATE, 0, 0) == BST_CHECKED)
{
g_BaseSystem->ExternalEvent(SysEvent_PauseCPU_SearchMemory);
SearchForUnknown();
g_BaseSystem->ExternalEvent(SysEvent_ResumeCPU_SearchMemory);
break;
}
if (SendMessage(GetDlgItem(IDC_RADIO_VALUE), BM_GETSTATE, 0, 0) == BST_CHECKED)
{
g_BaseSystem->ExternalEvent(SysEvent_PauseCPU_SearchMemory);
SearchForValue();
g_BaseSystem->ExternalEvent(SysEvent_ResumeCPU_SearchMemory);
break;
}
if (SendMessage(GetDlgItem(IDC_RADIO_TEXT), BM_GETSTATE, 0, 0) == BST_CHECKED)
{
g_BaseSystem->ExternalEvent(SysEvent_PauseCPU_SearchMemory);
SearchForText();
g_BaseSystem->ExternalEvent(SysEvent_ResumeCPU_SearchMemory);
break;
}
case IDC_RESET_BUTTON:
Reset();
break;
}
return FALSE;
}
LRESULT CDebugMemorySearch::OnResultRClick(LPNMHDR /*lpnmh*/)
{
LONG iItem = m_SearchResults.GetNextItem(-1, LVNI_SELECTED);
if (iItem == -1)
{
return true;
}
//Load the menu
HMENU hMenu = LoadMenu(GetModuleHandle(NULL), MAKEINTRESOURCE(IDR_MEM_SEARCH));
HMENU hPopupMenu = GetSubMenu(hMenu, 0);
//Get the current Mouse location
POINT Mouse;
GetCursorPos(&Mouse);
//Show the menu
TrackPopupMenu(hPopupMenu, 0, Mouse.x, Mouse.y, 0, m_hWnd, NULL);
DestroyMenu(hMenu);
return true;
}
LRESULT CDebugMemorySearch::OnResultDblClick(LPNMHDR)
{
LONG iItem = m_SearchResults.GetNextItem(-1, LVNI_SELECTED);
if (iItem == -1)
{
return true;
}
// view in memory
int ItemId = m_SearchResults.GetItemData(iItem);
SearchResultItem & Result = m_SearchResult[ItemId];
m_Debugger->Debug_ShowMemoryLocation(Result.PAddr, false);
return true;
}
void CDebugMemorySearch::EnableValueOptions(bool Enable)
{
if (Enable)
{
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), m_HaveResults ? "Search Results" : "Search");
}
::EnableWindow(GetDlgItem(IDC_SEARCH_VALUE), Enable);
::EnableWindow(GetDlgItem(IDC_SEARCH_HEX), Enable);
::EnableWindow(GetDlgItem(IDC_VALUE_ALIGN), m_HaveResults ? false : Enable);
}
void CDebugMemorySearch::EnableTextOptions(bool Enable)
{
if (Enable)
{
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), m_HaveResults ? "Search Results" : "Search");
}
::EnableWindow(GetDlgItem(IDC_SEARCH_TEXT), Enable);
::EnableWindow(GetDlgItem(IDC_CASE_SENSITIVE), Enable);
}
void CDebugMemorySearch::EnableJalOptions(bool Enable)
{
if (Enable)
{
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), m_HaveResults ? "Search Results" : "Search");
}
::EnableWindow(GetDlgItem(IDC_JAL_ADDR), Enable);
}
void CDebugMemorySearch::EnableUnknownOptions(bool Enable)
{
if (m_UnknownOptions.GetCount() > 1)
{
::EnableWindow(GetDlgItem(IDC_UNKNOWN_ALIGN), m_HaveResults ? false : Enable);
if (Enable)
{
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), m_HaveResults ? "Search Results" : "Search");
}
}
else
{
::EnableWindow(GetDlgItem(IDC_UNKNOWN_ALIGN), false);
if (Enable)
{
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), "Create");
}
}
::EnableWindow(GetDlgItem(IDC_CMB_UNKNOWN), Enable);
}
void CDebugMemorySearch::SearchForValue(void)
{
MemorySize Size = (MemorySize)m_ValueSize.GetItemData(m_ValueSize.GetCurSel());
DWORD Value = m_SearchValue.GetValue();
DWORD StartAddress = m_PAddrStart.GetValue();
DWORD Len = m_SearchLen.GetValue();
DWORD MaxSearch = m_MaxSearch.GetValue();
DWORD MoveSize = (Size == _32Bit ? 4 : (Size == _16Bit ? 2 : 1));
m_UnknownSize.SetCurSel(m_ValueSize.GetCurSel());
LPCTSTR DisplayStr = "0x%08X";
if (Size == _16Bit)
{
DisplayStr = "0x%04X";
}
else if (Size == _8Bit)
{
DisplayStr = "0x%04X";
}
m_SearchResults.SetRedraw(FALSE);
if (!m_HaveResults)
{
m_HaveResults = true;
FixUnknownOptions(false);
m_SearchResults.DeleteAllItems();
DWORD ItemsAdded = 0;
while (SearchForValue(Value, Size, StartAddress, Len))
{
SearchResultItem Result;
Result.PAddr = StartAddress;
Result.Value = Value;
char LocationStr[20];
sprintf(LocationStr, "%d", ItemsAdded + 1);
int Index = m_SearchResults.AddItem(ItemsAdded, 0, LocationStr);
m_SearchResults.SetItemData(Index, m_SearchResult.size());
m_SearchResult.push_back(Result);
sprintf(LocationStr, "0x%08X", StartAddress);
m_SearchResults.SetItemText(Index, 1, LocationStr);
sprintf(LocationStr, DisplayStr, Value);
m_SearchResults.SetItemText(Index, 2, LocationStr);
sprintf(LocationStr, DisplayStr, Value);
m_SearchResults.SetItemText(Index, 3, LocationStr);
StartAddress += MoveSize;
Len -= MoveSize;
ItemsAdded += 1;
if (ItemsAdded >= MaxSearch)
{
break;
}
}
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), "Search Results");
::ShowWindow(GetDlgItem(IDC_RESET_BUTTON), SW_SHOW);
::EnableWindow(GetDlgItem(IDC_VALUE_ALIGN), false);
}
else
{
int ItemCount = m_SearchResults.GetItemCount();
for (int i = ItemCount - 1; i >= 0; i--)
{
int ItemId = m_SearchResults.GetItemData(i);
SearchResultItem & Result = m_SearchResult[ItemId];
uint32_t NewValue = 0;
bool valid = false;
switch (Size)
{
case _8Bit:
{
BYTE mem = 0;
valid = g_MMU->LB_PAddr(Result.PAddr, mem);
NewValue = mem;
}
break;
case _16Bit:
{
WORD mem = 0;
valid = g_MMU->LH_PAddr(Result.PAddr, mem);
NewValue = mem;
}
break;
case _32Bit:
valid = g_MMU->LW_PAddr(Result.PAddr, NewValue);
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
if (Value == NewValue)
{
char LocationStr[20];
sprintf(LocationStr, DisplayStr, NewValue);
m_SearchResults.SetItemText(i, 2, LocationStr);
sprintf(LocationStr, DisplayStr, Result.Value);
m_SearchResults.SetItemText(i, 3, LocationStr);
Result.Value = NewValue;
}
else
{
m_SearchResults.DeleteItem(i);
}
}
}
m_SearchResults.SetRedraw(TRUE);
::SetWindowText(GetDlgItem(IDC_BORDER_RESULTS), stdstr_f("Results (%d)", m_SearchResults.GetItemCount()).c_str());
}
void CDebugMemorySearch::SearchForUnknown()
{
SearchMemChangeState Option = (SearchMemChangeState)m_UnknownOptions.GetItemData(m_UnknownOptions.GetCurSel());
if (Option == SearchChangeState_Reset)
{
m_SearchResults.DeleteAllItems();
SearchSetBaseForChanges();
FixUnknownOptions(false);
::ShowWindow(GetDlgItem(IDC_RESET_BUTTON), SW_SHOW);
::EnableWindow(GetDlgItem(IDC_UNKNOWN_ALIGN), true);
return;
}
MemorySize Size = (MemorySize)m_UnknownSize.GetItemData(m_UnknownSize.GetCurSel());
m_ValueSize.SetCurSel(m_UnknownSize.GetCurSel());
LPCTSTR DisplayStr = "0x%08X";
if (Size == _16Bit)
{
DisplayStr = "0x%04X";
}
else if (Size == _8Bit)
{
DisplayStr = "0x%04X";
}
if (!m_HaveResults)
{
m_HaveResults = true;
::EnableWindow(GetDlgItem(IDC_UNKNOWN_ALIGN), false);
DWORD StartAddress = m_PAddrStart.GetValue();
DWORD Len = m_SearchLen.GetValue();
DWORD MaxSearch = m_MaxSearch.GetValue();
DWORD MoveSize = (Size == _32Bit ? 4 : (Size == _16Bit ? 2 : 1));
for (int i = 2; i < 10; i++)
{
if (!m_SearchResults.DeleteColumn(i))
{
break;
}
}
m_SearchResults.AddColumn("New Value", 2);
m_SearchResults.AddColumn("Old Value", 3);
m_SearchResults.SetColumnWidth(0, 50);
m_SearchResults.SetColumnWidth(1, 75);
m_SearchResults.SetColumnWidth(2, 75);
m_SearchResults.SetColumnWidth(3, 75);
m_SearchResults.DeleteAllItems();
DWORD ItemsAdded = 0, OldValue, NewValue;
while (SearchForChanges(Option, Size, StartAddress, Len, OldValue, NewValue))
{
SearchResultItem Result;
Result.PAddr = StartAddress;
Result.Value = NewValue;
//if list size > max, then break
char LocationStr[20];
sprintf(LocationStr, "%d", ItemsAdded + 1);
int Index = m_SearchResults.AddItem(ItemsAdded, 0, LocationStr);
m_SearchResults.SetItemData(Index, m_SearchResult.size());
m_SearchResult.push_back(Result);
sprintf(LocationStr, "0x%08X", StartAddress);
m_SearchResults.SetItemText(Index, 1, LocationStr);
sprintf(LocationStr, DisplayStr, NewValue);
m_SearchResults.SetItemText(Index, 2, LocationStr);
sprintf(LocationStr, DisplayStr, OldValue);
m_SearchResults.SetItemText(Index, 3, LocationStr);
StartAddress += MoveSize;
Len -= MoveSize;
ItemsAdded += 1;
if (ItemsAdded >= MaxSearch)
{
break;
}
}
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), "Search Results");
::ShowWindow(GetDlgItem(IDC_RESET_BUTTON), SW_SHOW);
::EnableWindow(GetDlgItem(IDC_RADIO_TEXT), false);
::EnableWindow(GetDlgItem(IDC_RADIO_JAL), false);
}
else
{
int ItemCount = m_SearchResults.GetItemCount();
for (int i = ItemCount - 1; i >= 0; i--)
{
int ItemId = m_SearchResults.GetItemData(i);
SearchResultItem & Result = m_SearchResult[ItemId];
bool UpdateResult = false;
uint32_t NewValue = 0;
bool valid = false;
switch (Size)
{
case _8Bit:
{
BYTE mem = 0;
valid = g_MMU->LB_PAddr(Result.PAddr, mem);
NewValue = mem;
}
break;
case _16Bit:
{
WORD mem = 0;
valid = g_MMU->LH_PAddr(Result.PAddr, mem);
NewValue = mem;
}
break;
case _32Bit:
valid = g_MMU->LW_PAddr(Result.PAddr, NewValue);
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
switch (Option)
{
case SearchChangeState_Changed:
if (Result.Value != NewValue)
{
UpdateResult = true;
}
break;
case SearchChangeState_Unchanged:
if (Result.Value == NewValue)
{
UpdateResult = true;
}
break;
case SearchChangeState_Greater:
if (NewValue > Result.Value)
{
UpdateResult = true;
}
break;
case SearchChangeState_Lessthan:
if (NewValue < Result.Value)
{
UpdateResult = true;
}
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
if (UpdateResult)
{
char LocationStr[20];
sprintf(LocationStr, DisplayStr, NewValue);
m_SearchResults.SetItemText(i, 2, LocationStr);
sprintf(LocationStr, DisplayStr, Result.Value);
m_SearchResults.SetItemText(i, 3, LocationStr);
Result.Value = NewValue;
}
else
{
m_SearchResults.DeleteItem(i);
}
}
}
::SetWindowText(GetDlgItem(IDC_BORDER_RESULTS), stdstr_f("Results (%d)", m_SearchResults.GetItemCount()).c_str());
}
void CDebugMemorySearch::SearchForText()
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
void CDebugMemorySearch::Reset(void)
{
m_HaveResults = false;
SendMessage(GetDlgItem(IDC_RADIO_VALUE), BM_SETCHECK, BST_CHECKED, 0);
EnableUnknownOptions(false);
EnableValueOptions(true);
EnableTextOptions(false);
EnableJalOptions(false);
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), "Search");
::SetWindowText(GetDlgItem(IDC_BORDER_RESULTS), "Results");
::ShowWindow(GetDlgItem(IDC_RESET_BUTTON), SW_HIDE);
::EnableWindow(GetDlgItem(IDC_RADIO_UNKNOWN), true);
::EnableWindow(GetDlgItem(IDC_RADIO_VALUE), true);
::EnableWindow(GetDlgItem(IDC_RADIO_TEXT), false);
::EnableWindow(GetDlgItem(IDC_RADIO_JAL), false);
for (int i = 1; i < 10; i++)
{
if (!m_SearchResults.DeleteColumn(i))
{
break;
}
}
m_SearchResults.AddColumn("Value", 2);
m_SearchResults.DeleteAllItems();
m_SearchResults.SetColumnWidth(0, 50);
m_SearchResults.SetColumnWidth(1, 75);
m_SearchResults.SetColumnWidth(2, 75);
m_SearchResults.SetExtendedListViewStyle(LVS_EX_FULLROWSELECT);
FixUnknownOptions(true);
}
void CDebugMemorySearch::FixUnknownOptions(bool Reset)
{
CComboBox & cb = m_UnknownOptions;
if (!Reset && cb.GetCount() > 1)
{
return;
}
cb.ResetContent();
if (Reset)
{
cb.SetItemData(cb.AddString("Create compare base"), SearchChangeState_Reset);
cb.SetCurSel(0);
return;
}
cb.SetItemData(cb.AddString("memory changed"), SearchChangeState_Changed);
cb.SetItemData(cb.AddString("memory unchanged"), SearchChangeState_Unchanged);
cb.SetItemData(cb.AddString("Value has increased"), SearchChangeState_Greater);
cb.SetItemData(cb.AddString("Value has descreased"), SearchChangeState_Lessthan);
cb.SetCurSel(1);
::SetWindowText(GetDlgItem(IDC_BTN_SEARCH), "Search");
}
bool CDebugMemorySearch::SearchSetBaseForChanges(void)
{
if (m_MemoryState != NULL)
{
delete[] m_MemoryState;
}
m_MemoryStateSize = g_MMU->RdramSize();
m_MemoryState = new BYTE[m_MemoryStateSize];
memcpy(m_MemoryState, g_MMU->Rdram(), m_MemoryStateSize);
return true;
}
bool CDebugMemorySearch::SearchForChanges(SearchMemChangeState SearchType, MemorySize Size,
DWORD &StartAddress, DWORD &Len,
DWORD &OldValue, DWORD &NewValue)
{
if (g_MMU == NULL)
{
return false;
}
if (SearchType == SearchChangeState_Reset)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
if (Size == _32Bit) { StartAddress = ((StartAddress + 3) & ~3); }
if (Size == _16Bit) { StartAddress = ((StartAddress + 1) & ~1); }
//search memory
if (StartAddress < g_MMU->RdramSize())
{
DWORD EndMemSearchAddr = StartAddress + Len;
if (EndMemSearchAddr > g_MMU->RdramSize())
{
EndMemSearchAddr = g_MMU->RdramSize();
}
DWORD pos;
switch (Size)
{
case _32Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 4)
{
OldValue = *(DWORD *)(m_MemoryState + pos);
NewValue = *(DWORD *)(g_MMU->Rdram() + pos);
if ((SearchType == SearchChangeState_Changed && NewValue != OldValue) ||
(SearchType == SearchChangeState_Unchanged && NewValue == OldValue) ||
(SearchType == SearchChangeState_Greater && NewValue > OldValue) ||
(SearchType == SearchChangeState_Lessthan && NewValue < OldValue))
{
*(DWORD *)(m_MemoryState + pos) = NewValue;
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
case _16Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 2)
{
OldValue = *(WORD *)(m_MemoryState + (pos ^ 2));
NewValue = *(WORD *)(g_MMU->Rdram() + (pos ^ 2));
if ((SearchType == SearchChangeState_Changed && NewValue != OldValue) ||
(SearchType == SearchChangeState_Unchanged && NewValue == OldValue) ||
(SearchType == SearchChangeState_Greater && NewValue > OldValue) ||
(SearchType == SearchChangeState_Lessthan && NewValue < OldValue))
{
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
case _8Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos++)
{
OldValue = *(BYTE *)(m_MemoryState + (pos ^ 3));
NewValue = *(BYTE *)(g_MMU->Rdram() + (pos ^ 3));
if ((SearchType == SearchChangeState_Changed && NewValue != OldValue) ||
(SearchType == SearchChangeState_Unchanged && NewValue == OldValue) ||
(SearchType == SearchChangeState_Greater && NewValue > OldValue) ||
(SearchType == SearchChangeState_Lessthan && NewValue < OldValue))
{
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
}
return false;
}
bool CDebugMemorySearch::SearchForValue(DWORD Value, MemorySize Size, DWORD &StartAddress, DWORD &Len)
{
if (g_MMU == NULL || g_Rom == NULL)
{
return false;
}
if (Size == _32Bit)
{
StartAddress = ((StartAddress + 3) & ~3);
}
if (Size == _16Bit)
{
StartAddress = ((StartAddress + 1) & ~1);
}
//search memory
if (StartAddress < g_MMU->RdramSize())
{
DWORD EndMemSearchAddr = StartAddress + Len;
if (EndMemSearchAddr > g_MMU->RdramSize())
{
EndMemSearchAddr = g_MMU->RdramSize();
}
DWORD pos;
BYTE * RDRAM = g_MMU->Rdram();
switch (Size)
{
case _32Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 4)
{
if (*(DWORD *)(RDRAM + pos) == Value)
{
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
case _16Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 2)
{
if (*(WORD *)(RDRAM + (pos ^ 2)) == (WORD)Value)
{
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
case _8Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos++)
{
if (*(BYTE *)(RDRAM + (pos ^ 3)) == (BYTE)Value)
{
Len -= pos - StartAddress;
StartAddress = pos;
return true;
}
}
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
}
if (StartAddress >= 0x10000000)
{
DWORD EndMemSearchAddr = StartAddress + Len - 0x10000000;
if (EndMemSearchAddr > g_Rom->GetRomSize())
{
EndMemSearchAddr = g_Rom->GetRomSize();
}
StartAddress -= 0x10000000;
DWORD pos;
BYTE * ROM = g_Rom->GetRomAddress();
switch (Size)
{
case _32Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 4)
{
if (*(DWORD *)(ROM + pos) == Value)
{
Len -= pos - StartAddress;
StartAddress = pos + 0x10000000;
return true;
}
}
break;
case _16Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos += 2)
{
if (*(WORD *)(ROM + (pos ^ 2)) == (WORD)Value)
{
Len -= pos - StartAddress;
StartAddress = pos + 0x10000000;
return true;
}
}
break;
case _8Bit:
for (pos = StartAddress; pos < EndMemSearchAddr; pos++)
{
if (*(BYTE *)(ROM + (pos ^ 3)) == (BYTE)Value)
{
Len -= pos - StartAddress;
StartAddress = pos + 0x10000000;
return true;
}
}
break;
default:
g_Notify->BreakPoint(__FILE__, __LINE__);
}
}
return false;
}
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