initial commit

src/debugger/Debugger.cpp

@@ -0,0 +1,127 @@
+#include "Debugger.hpp"
+
+#include <imgui/imgui.h>
+#include <imgui/imgui_internal.h>
+
+#include "../Bus.hpp"
+#include "CPUWatcher.hpp"
+#include "PPUWatcher.hpp"
+#include "Disassembler.hpp"
+#include "MemoryViewer.hpp"
+#include "NametableViewer.hpp"
+
+Debugger::Debugger(Bus* bus) :
+	bus(bus)
+{
+	windows.push_back(new CPUWatcher(&bus->cpu));
+	windows.push_back(new PPUWatcher(&bus->ppu));
+	windows.push_back(new Disassembler(&bus->cpu));
+	windows.push_back(new MemoryViewer(bus));
+	windows.push_back(new NametableViewer(bus));
+}
+
+Debugger::~Debugger()
+{
+	for (DebugWindow* window : windows)
+		delete window;
+}
+
+bool Debugger::Update()
+{
+	if (running)
+		return bus->Frame();
+
+	return true;
+}
+
+void Debugger::Render()
+{
+	ImGui::SetNextWindowSize(ImVec2(400, 600), ImGuiCond_FirstUseEver);
+	if (!ImGui::Begin("Debugger", (bool*)0, ImGuiWindowFlags_MenuBar))
+	{
+		ImGui::End();
+		return;
+	}
+
+	if (ImGui::BeginMenuBar())
+	{
+		if (ImGui::BeginMenu("Tools"))
+		{
+			for (DebugWindow* window : windows)
+			{
+				ImGui::MenuItem(window->title.c_str(), NULL, &window->isOpen);
+			}
+
+			ImGui::EndMenu();
+		}
+
+		ImGui::EndMenuBar();
+	}
+
+	ImGui::Separator();
+
+	if (ImGui::CollapsingHeader("Controls", ImGuiTreeNodeFlags_DefaultOpen))
+	{
+		ImGui::PushItemFlag(ImGuiItemFlags_Disabled, running);
+		if (running)
+			ImGui::PushStyleColor(ImGuiCol_Button, ImVec4{ 0.7f, 0.7f, 0.7f, 0.7f });
+
+		if (ImGui::Button("Single Step"))
+			bus->Instruction();
+
+		ImGui::SameLine();
+
+		if (ImGui::Button("Single Frame"))
+			bus->Frame();
+
+		if (running)
+			ImGui::PopStyleColor();
+		ImGui::PopItemFlag();
+
+		ImGui::SameLine();
+
+		if (ImGui::Button(running ? "Pause" : "Run"))
+			running = !running;
+
+		ImGui::PushItemFlag(ImGuiItemFlags_Disabled, running);
+		if (running)
+			ImGui::PushStyleColor(ImGuiCol_Button, ImVec4{ 0.7f, 0.7f, 0.7f, 0.7f });
+
+		if (ImGui::Button("Reset"))
+		{
+			bus->Reset();
+			if (overrideResetVector)
+				bus->cpu.pc.Raw = resetVector;
+		}
+
+		ImGui::SameLine();
+
+		if (ImGui::Button("Reboot"))
+		{
+			bus->Reboot();
+			if (overrideResetVector)
+				bus->cpu.pc.Raw = resetVector;
+		}
+
+		if (running)
+			ImGui::PopStyleColor();
+		ImGui::PopItemFlag();
+
+
+		ImGui::Separator();
+
+		ImGui::Text("Override Reset Vector: ");
+		ImGui::SameLine();
+		if (ImGui::Button(overrideResetVector ? "Yes" : "No"))
+			overrideResetVector = !overrideResetVector;
+
+		ImGui::InputScalar("Reset Vector", ImGuiDataType_U16, &resetVector, (const void*)0, (const void*)0, "%04X", ImGuiInputTextFlags_CharsHexadecimal);
+	}
+
+	for (DebugWindow* window : windows)
+	{
+		if (window->isOpen) window->OnRender();
+	}
+
+	ImGui::End();
+}