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https://github.com/dolphin-emu/dolphin.git
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413 lines
10 KiB
C++
413 lines
10 KiB
C++
// Copyright 2018 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "DolphinQt/Debugger/MemoryViewWidget.h"
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#include <QApplication>
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#include <QClipboard>
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#include <QHeaderView>
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#include <QMenu>
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#include <QMouseEvent>
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#include <QScrollBar>
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#include <cmath>
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#include "Common/StringUtil.h"
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#include "Core/Core.h"
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#include "Core/HW/AddressSpace.h"
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#include "Core/PowerPC/BreakPoints.h"
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#include "Core/PowerPC/PowerPC.h"
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#include "DolphinQt/Host.h"
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#include "DolphinQt/Resources.h"
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#include "DolphinQt/Settings.h"
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// "Most mouse types work in steps of 15 degrees, in which case the delta value is a multiple of
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// 120; i.e., 120 units * 1/8 = 15 degrees." (http://doc.qt.io/qt-5/qwheelevent.html#angleDelta)
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constexpr double SCROLL_FRACTION_DEGREES = 15.;
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MemoryViewWidget::MemoryViewWidget(QWidget* parent) : QTableWidget(parent)
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{
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horizontalHeader()->hide();
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verticalHeader()->hide();
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setShowGrid(false);
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setFont(Settings::Instance().GetDebugFont());
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connect(&Settings::Instance(), &Settings::DebugFontChanged, this, &QWidget::setFont);
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connect(&Settings::Instance(), &Settings::EmulationStateChanged, this, [this] { Update(); });
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connect(Host::GetInstance(), &Host::UpdateDisasmDialog, this, &MemoryViewWidget::Update);
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connect(this, &MemoryViewWidget::customContextMenuRequested, this,
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&MemoryViewWidget::OnContextMenu);
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connect(&Settings::Instance(), &Settings::ThemeChanged, this, &MemoryViewWidget::Update);
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setContextMenuPolicy(Qt::CustomContextMenu);
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Update();
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}
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static int GetColumnCount(MemoryViewWidget::Type type)
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{
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switch (type)
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{
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case MemoryViewWidget::Type::ASCII:
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case MemoryViewWidget::Type::U8:
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return 16;
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case MemoryViewWidget::Type::U16:
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return 8;
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case MemoryViewWidget::Type::U32:
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case MemoryViewWidget::Type::Float32:
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return 4;
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default:
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return 0;
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}
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}
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void MemoryViewWidget::Update()
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{
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clearSelection();
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setColumnCount(2 + GetColumnCount(m_type));
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if (rowCount() == 0)
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setRowCount(1);
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setRowHeight(0, 24);
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const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
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// Calculate (roughly) how many rows will fit in our table
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int rows = std::round((height() / static_cast<float>(rowHeight(0))) - 0.25);
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setRowCount(rows);
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for (int i = 0; i < rows; i++)
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{
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setRowHeight(i, 24);
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u32 addr = m_address - ((rowCount() / 2) * 16) + i * 16;
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auto* bp_item = new QTableWidgetItem;
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bp_item->setFlags(Qt::ItemIsEnabled);
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bp_item->setData(Qt::UserRole, addr);
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setItem(i, 0, bp_item);
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auto* addr_item = new QTableWidgetItem(QStringLiteral("%1").arg(addr, 8, 16, QLatin1Char('0')));
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addr_item->setData(Qt::UserRole, addr);
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addr_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
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setItem(i, 1, addr_item);
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if (addr == m_address)
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addr_item->setSelected(true);
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if (Core::GetState() != Core::State::Paused || !accessors->IsValidAddress(addr))
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{
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for (int c = 2; c < columnCount(); c++)
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{
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auto* item = new QTableWidgetItem(QStringLiteral("-"));
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item->setFlags(Qt::ItemIsEnabled);
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item->setData(Qt::UserRole, addr);
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setItem(i, c, item);
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}
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continue;
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}
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if (m_address_space == AddressSpace::Type::Effective)
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{
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auto* description_item = new QTableWidgetItem(
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QString::fromStdString(PowerPC::debug_interface.GetDescription(addr)));
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description_item->setForeground(Qt::blue);
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description_item->setFlags(Qt::ItemIsEnabled);
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setItem(i, columnCount() - 1, description_item);
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}
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bool row_breakpoint = true;
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auto update_values = [&](auto value_to_string) {
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for (int c = 0; c < GetColumnCount(m_type); c++)
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{
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auto* hex_item = new QTableWidgetItem;
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hex_item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);
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const u32 address = addr + c * (16 / GetColumnCount(m_type));
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if (m_address_space == AddressSpace::Type::Effective &&
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PowerPC::memchecks.OverlapsMemcheck(address, 16 / GetColumnCount(m_type)))
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{
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hex_item->setBackground(Qt::red);
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}
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else
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{
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row_breakpoint = false;
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}
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setItem(i, 2 + c, hex_item);
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if (accessors->IsValidAddress(address))
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{
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hex_item->setText(value_to_string(address));
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hex_item->setData(Qt::UserRole, address);
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}
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else
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{
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hex_item->setFlags({});
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hex_item->setText(QStringLiteral("-"));
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}
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}
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};
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switch (m_type)
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{
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case Type::U8:
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update_values([&accessors](u32 address) {
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const u8 value = accessors->ReadU8(address);
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return QStringLiteral("%1").arg(value, 2, 16, QLatin1Char('0'));
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});
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break;
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case Type::ASCII:
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update_values([&accessors](u32 address) {
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const char value = accessors->ReadU8(address);
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return IsPrintableCharacter(value) ? QString{QChar::fromLatin1(value)} :
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QString{QChar::fromLatin1('.')};
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});
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break;
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case Type::U16:
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update_values([&accessors](u32 address) {
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const u16 value = accessors->ReadU16(address);
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return QStringLiteral("%1").arg(value, 4, 16, QLatin1Char('0'));
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});
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break;
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case Type::U32:
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update_values([&accessors](u32 address) {
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const u32 value = accessors->ReadU32(address);
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return QStringLiteral("%1").arg(value, 8, 16, QLatin1Char('0'));
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});
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break;
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case Type::Float32:
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update_values(
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[&accessors](u32 address) { return QString::number(accessors->ReadF32(address)); });
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break;
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}
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if (row_breakpoint)
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{
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bp_item->setData(Qt::DecorationRole,
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Resources::GetScaledThemeIcon("debugger_breakpoint").pixmap(QSize(24, 24)));
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}
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}
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setColumnWidth(0, 24 + 5);
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for (int i = 1; i < columnCount(); i++)
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{
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resizeColumnToContents(i);
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// Add some extra spacing because the default width is too small in most cases
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setColumnWidth(i, columnWidth(i) * 1.1);
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}
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viewport()->update();
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update();
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}
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void MemoryViewWidget::SetAddressSpace(AddressSpace::Type address_space)
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{
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if (m_address_space == address_space)
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{
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return;
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}
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m_address_space = address_space;
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Update();
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}
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AddressSpace::Type MemoryViewWidget::GetAddressSpace() const
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{
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return m_address_space;
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}
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void MemoryViewWidget::SetType(Type type)
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{
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if (m_type == type)
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return;
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m_type = type;
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Update();
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}
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void MemoryViewWidget::SetBPType(BPType type)
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{
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m_bp_type = type;
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}
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void MemoryViewWidget::SetAddress(u32 address)
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{
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if (m_address == address)
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return;
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m_address = address;
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Update();
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}
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void MemoryViewWidget::SetBPLoggingEnabled(bool enabled)
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{
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m_do_log = enabled;
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}
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void MemoryViewWidget::resizeEvent(QResizeEvent*)
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{
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Update();
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}
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void MemoryViewWidget::keyPressEvent(QKeyEvent* event)
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{
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switch (event->key())
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{
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case Qt::Key_Up:
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m_address -= 16;
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Update();
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return;
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case Qt::Key_Down:
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m_address += 16;
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Update();
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return;
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case Qt::Key_PageUp:
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m_address -= rowCount() * 16;
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Update();
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return;
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case Qt::Key_PageDown:
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m_address += rowCount() * 16;
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Update();
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return;
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default:
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QWidget::keyPressEvent(event);
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break;
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}
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}
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u32 MemoryViewWidget::GetContextAddress() const
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{
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return m_context_address;
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}
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void MemoryViewWidget::ToggleRowBreakpoint(bool row)
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{
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TMemCheck check;
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const u32 addr = row ? GetContextAddress() & 0xFFFFFFF0 : GetContextAddress();
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const auto length = row ? 16 : (16 / GetColumnCount(m_type));
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if (m_address_space == AddressSpace::Type::Effective)
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{
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if (!PowerPC::memchecks.OverlapsMemcheck(addr, length))
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{
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check.start_address = addr;
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check.end_address = check.start_address + length - 1;
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check.is_ranged = length > 0;
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check.is_break_on_read = (m_bp_type == BPType::ReadOnly || m_bp_type == BPType::ReadWrite);
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check.is_break_on_write = (m_bp_type == BPType::WriteOnly || m_bp_type == BPType::ReadWrite);
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check.log_on_hit = m_do_log;
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check.break_on_hit = true;
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PowerPC::memchecks.Add(check);
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}
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else
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{
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PowerPC::memchecks.Remove(addr);
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}
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}
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emit BreakpointsChanged();
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Update();
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}
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void MemoryViewWidget::ToggleBreakpoint()
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{
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ToggleRowBreakpoint(false);
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}
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void MemoryViewWidget::wheelEvent(QWheelEvent* event)
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{
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auto delta =
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-static_cast<int>(std::round((event->angleDelta().y() / (SCROLL_FRACTION_DEGREES * 8))));
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if (delta == 0)
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return;
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m_address += delta * 16;
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Update();
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}
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void MemoryViewWidget::mousePressEvent(QMouseEvent* event)
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{
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auto* item = itemAt(event->pos());
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if (item == nullptr)
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return;
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const u32 addr = item->data(Qt::UserRole).toUInt();
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m_context_address = addr;
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switch (event->button())
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{
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case Qt::LeftButton:
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if (column(item) == 0)
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ToggleRowBreakpoint(true);
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else
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SetAddress(addr & 0xFFFFFFF0);
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Update();
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break;
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default:
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break;
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}
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}
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void MemoryViewWidget::OnCopyAddress()
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{
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u32 addr = GetContextAddress();
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QApplication::clipboard()->setText(QStringLiteral("%1").arg(addr, 8, 16, QLatin1Char('0')));
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}
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void MemoryViewWidget::OnCopyHex()
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{
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u32 addr = GetContextAddress();
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const auto length = 16 / GetColumnCount(m_type);
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const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
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u64 value = accessors->ReadU64(addr);
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QApplication::clipboard()->setText(
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QStringLiteral("%1").arg(value, sizeof(u64) * 2, 16, QLatin1Char('0')).left(length * 2));
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}
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void MemoryViewWidget::OnContextMenu()
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{
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auto* menu = new QMenu(this);
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menu->addAction(tr("Copy Address"), this, &MemoryViewWidget::OnCopyAddress);
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auto* copy_hex = menu->addAction(tr("Copy Hex"), this, &MemoryViewWidget::OnCopyHex);
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const AddressSpace::Accessors* accessors = AddressSpace::GetAccessors(m_address_space);
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copy_hex->setEnabled(Core::GetState() != Core::State::Uninitialized &&
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accessors->IsValidAddress(GetContextAddress()));
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menu->addSeparator();
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menu->addAction(tr("Show in code"), this, [this] { emit ShowCode(GetContextAddress()); });
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menu->addSeparator();
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menu->addAction(tr("Add to watch"), this, [this] {
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const u32 address = GetContextAddress();
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const QString name = QStringLiteral("mem_%1").arg(address, 8, 16, QLatin1Char('0'));
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emit RequestWatch(name, address);
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});
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menu->addAction(tr("Toggle Breakpoint"), this, &MemoryViewWidget::ToggleBreakpoint);
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menu->exec(QCursor::pos());
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}
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