Memory debugger

2024-01-07 16:20:37 -05:00 · 2024-01-07 16:20:37 -05:00 · 084cbed0f4
parent cebee66076
commit 084cbed0f4
11 changed files with 296 additions and 70 deletions
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@ -12,6 +12,7 @@
  <component name="CMakeRunConfigurationManager">
    <generated>
      <config projectName="NESEmulator" targetName="NESEmulator" />
+      <config projectName="NESEmulator" targetName="DEBUG" />
      <config projectName="NESEmulator" targetName="ROM" />
      <config projectName="NESEmulator" targetName="Mappers" />
      <config projectName="NESEmulator" targetName="PPU" />
@ -24,59 +25,18 @@
    </configurations>
  </component>
  <component name="ChangeListManager">
-    <list default="true" id="0c3b231e-0637-4ac1-8964-c60fc9e9e691" name="Changes" comment="Added logging for operand decoding">
-      <change afterPath="$PROJECT_DIR$/include/ppu.h" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/include/system.h" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/include/types.h" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/ppu/CMakeLists.txt" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/ppu/ppu.c" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/system.c" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/test_roms/nestest.fdb" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/test_roms/nestest.nes" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/test_roms/smb.fdb" afterDir="false" />
+    <list default="true" id="0c3b231e-0637-4ac1-8964-c60fc9e9e691" name="Changes" comment="Things">
+      <change afterPath="$PROJECT_DIR$/debugger/CMakeLists.txt" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/debugger.c" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/debugger.h" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/dialog.c" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/dialog.h" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/memory_view.c" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/debugger/memory_view.h" afterDir="false" />
      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
      <change beforePath="$PROJECT_DIR$/CMakeLists.txt" beforeDir="false" afterPath="$PROJECT_DIR$/CMakeLists.txt" afterDir="false" />
      <change beforePath="$PROJECT_DIR$/conandata.yml" beforeDir="false" afterPath="$PROJECT_DIR$/conandata.yml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/CMakeLists.txt" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/CMakeLists.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/cpu.c" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/cpu.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/cpu.h" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/cpu.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/memory.c" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/memory.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/memory.h" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/memory.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/op.c" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/op.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/op.h" beforeDir="false" afterPath="$PROJECT_DIR$/cpu/op.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/ram.c" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/cpu/ram.h" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/include/cpu.h" beforeDir="false" afterPath="$PROJECT_DIR$/include/cpu.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/include/mapper.h" beforeDir="false" afterPath="$PROJECT_DIR$/include/mapper.h" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/include/rom.h" beforeDir="false" afterPath="$PROJECT_DIR$/include/rom.h" afterDir="false" />
      <change beforePath="$PROJECT_DIR$/main.c" beforeDir="false" afterPath="$PROJECT_DIR$/main.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/mappers/simple_mapper.c" beforeDir="false" afterPath="$PROJECT_DIR$/mappers/simple_mapper.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/rom/ines.c" beforeDir="false" afterPath="$PROJECT_DIR$/rom/ines.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/rom/rom.c" beforeDir="false" afterPath="$PROJECT_DIR$/rom/rom.c" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/readme.txt" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/readme.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/ascii_1.chr" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/ascii_1.chr" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/ascii_2.chr" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/ascii_2.chr" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/ascii_3.chr" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/ascii_3.chr" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/build_rom.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/build_rom.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/colors.inc" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/colors.inc" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/console.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/console.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/crc.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/crc.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/delay.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/delay.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/devcart.bin" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/devcart.bin" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/macros.inc" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/macros.inc" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/neshw.inc" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/neshw.inc" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/ppu.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/ppu.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/print.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/print.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/shell.inc" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/shell.inc" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/shell.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/shell.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/testing.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/testing.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/common/text_out.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/common/text_out.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/readme.txt" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/readme.txt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/test_cpu_exec_space_apu.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/test_cpu_exec_space_apu.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/source/test_cpu_exec_space_ppuio.s" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/source/test_cpu_exec_space_ppuio.s" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/test_cpu_exec_space_apu.nes" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/test_cpu_exec_space_apu.nes" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/cpu_exec_space/test_cpu_exec_space_ppuio.nes" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/cpu_exec_space/test_cpu_exec_space_ppuio.nes" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/tests/smb.nes" beforeDir="false" afterPath="$PROJECT_DIR$/test_roms/smb.nes" afterDir="false" />
    </list>
    <option name="SHOW_DIALOG" value="false" />
    <option name="HIGHLIGHT_CONFLICTS" value="true" />
@ -274,6 +234,11 @@
      <option name="_new_targetType" value="&quot;PATH&quot;" />
      <method v="2" />
    </configuration>
+    <configuration default="true" type="CLionExternalRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true">
+      <method v="2">
+        <option name="CLION.EXTERNAL.BUILD" enabled="true" />
+      </method>
+    </configuration>
    <configuration name="NESEmulator" type="CMakeListConfigurationType" factoryName="CMakeListConfigurationFactory" temporary="true">
      <method v="2" />
    </configuration>
@ -285,7 +250,7 @@
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
    </configuration>
-    <configuration name="CPU" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="CPU" CONFIG_NAME="Debug">
+    <configuration name="DEBUG" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="DEBUG" CONFIG_NAME="Debug">
      <method v="2">
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
@ -295,12 +260,17 @@
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
    </configuration>
-    <configuration name="Mappers" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="Mappers" CONFIG_NAME="Debug">
+    <configuration name="NESEmulator (GDB Server)" type="CMakeRunConfiguration" factoryName="Application" PROGRAM_PARAMS="-- /usr/bin/gdbserver localhost:1234 $CMakeCurrentBuildDir$/NESEmulator" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="NESEmulator" CONFIG_NAME="Debug" RUN_PATH="/usr/bin/gnome-terminal">
      <method v="2">
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
    </configuration>
-    <configuration name="NESEmulator" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="NESEmulator" CONFIG_NAME="Debug" RUN_TARGET_PROJECT_NAME="NESEmulator" RUN_TARGET_NAME="NESEmulator">
+    <configuration name="NESEmulator (Term)" type="CMakeRunConfiguration" factoryName="Application" PROGRAM_PARAMS="-- $CMakeCurrentBuildDir$/NESEmulator" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="true" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="NESEmulator" CONFIG_NAME="Debug" RUN_PATH="/usr/bin/gnome-terminal">
+      <method v="2">
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="NESEmulator" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="true" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="NESEmulator" CONFIG_NAME="Debug" RUN_TARGET_PROJECT_NAME="NESEmulator" RUN_TARGET_NAME="NESEmulator">
      <method v="2">
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
@ -320,11 +290,6 @@
        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
      </method>
    </configuration>
-    <configuration name="ROM" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="NESEmulator" TARGET_NAME="ROM" CONFIG_NAME="Debug">
-      <method v="2">
-        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
-      </method>
-    </configuration>
    <configuration default="true" type="PythonConfigurationType" factoryName="Python">
      <module name="nesemu" />
      <option name="INTERPRETER_OPTIONS" value="" />
@ -449,11 +414,14 @@
      <method v="2" />
    </configuration>
    <list>
-      <item itemvalue="CMake Application.NESEmulator" />
      <item itemvalue="CMake Application.CPU" />
+      <item itemvalue="CMake Application.DEBUG" />
      <item itemvalue="CMake Application.Mappers" />
      <item itemvalue="CMake Application.PPU" />
      <item itemvalue="CMake Application.ROM" />
+      <item itemvalue="CMake Application.NESEmulator (GDB Server)" />
+      <item itemvalue="CMake Application.NESEmulator" />
+      <item itemvalue="CMake Application.NESEmulator (Term)" />
      <item itemvalue="CMake Debug.NESEmulator" />
    </list>
    <recent_temporary>
@ -491,7 +459,9 @@
      <workItem from="1704429138262" duration="2629000" />
      <workItem from="1704484992884" duration="2000" />
      <workItem from="1704501418104" duration="8204000" />
-      <workItem from="1704569084127" duration="3000" />
+      <workItem from="1704569084127" duration="8903000" />
+      <workItem from="1704582152049" duration="7863000" />
+      <workItem from="1704660072645" duration="2354000" />
    </task>
    <task id="LOCAL-00001" summary="Cpu opcodes implementation">
      <option name="closed" value="true" />
@ -517,7 +487,15 @@
      <option name="project" value="LOCAL" />
      <updated>1703369431911</updated>
    </task>
-    <option name="localTasksCounter" value="4" />
+    <task id="LOCAL-00004" summary="Things">
+      <option name="closed" value="true" />
+      <created>1704569231622</created>
+      <option name="number" value="00004" />
+      <option name="presentableId" value="LOCAL-00004" />
+      <option name="project" value="LOCAL" />
+      <updated>1704569231622</updated>
+    </task>
+    <option name="localTasksCounter" value="5" />
    <servers />
  </component>
  <component name="TypeScriptGeneratedFilesManager">
@ -534,7 +512,8 @@
    <MESSAGE value="Cpu opcodes implementation" />
    <MESSAGE value="Gitignore" />
    <MESSAGE value="Added logging for operand decoding" />
-    <option name="LAST_COMMIT_MESSAGE" value="Added logging for operand decoding" />
+    <MESSAGE value="Things" />
+    <option name="LAST_COMMIT_MESSAGE" value="Things" />
  </component>
  <component name="XDebuggerManager">
    <breakpoint-manager>
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@ -5,12 +5,14 @@ add_subdirectory(cpu)
 add_subdirectory(ppu)
 add_subdirectory(mappers)
 add_subdirectory(rom)
+add_subdirectory(debugger)

 list(APPEND EXTRA_INCLUDES
        "${PROJECT_SOURCE_DIR}/cpu"
        "${PROJECT_SOURCE_DIR}/ppu"
        "${PROJECT_SOURCE_DIR}/mappers"
-        "${PROJECT_SOURCE_DIR}/rom")
+        "${PROJECT_SOURCE_DIR}/rom"
+        "${PROJECT_SOURCE_DIR}/debugger")

 add_executable(NESEmulator main.c
        system.c
@ -19,7 +21,7 @@ add_executable(NESEmulator main.c

 find_package(log.c)

-target_link_libraries(NESEmulator CPU PPU Mappers ROM log.c::log.c)
+target_link_libraries(NESEmulator CPU PPU Mappers ROM DEBUG log.c::log.c)
 target_include_directories(NESEmulator PUBLIC
        "${PROJECT_BINARY_DIR}"
        ${EXTRA_INCLUDES})
--- a/conandata.yml
+++ b/conandata.yml
@ -2,5 +2,6 @@
 # To keep your changes, remove these comment lines, but the plugin won't be able to modify your requirements

 requirements:
+  - "ncurses/6.4"
  - "libcheck/0.15.2"
  - "log.c/cci.20200620"
--- a/debugger/CMakeLists.txt
+++ b/debugger/CMakeLists.txt
@ -0,0 +1,8 @@
+add_library(DEBUG
+        debugger.c
+        memory_view.c
+        dialog.c)
+
+find_package(Curses)
+
+target_link_libraries(DEBUG Curses::Curses)
--- a/debugger/debugger.c
+++ b/debugger/debugger.c
@ -0,0 +1,63 @@
+//
+// Created by william on 1/6/24.
+//
+
+#include <curses.h>
+#include <panel.h>
+#include <stdlib.h>
+#include "debugger.h"
+#include "memory_view.h"
+#include "dialog.h"
+
+#define CTRL_KEY_EXIT 3
+#define CTRL_KEY_UP 65
+#define CTRL_KEY_DOWN 66
+#define CTRL_KEY_G 103
+
+MemoryView view;
+
+void create_window() {
+    setenv("TERMINFO", "/usr/share/terminfo", 1);
+    setenv("TERM", "xterm", 1);
+
+    initscr();
+    raw();
+    noecho();
+//    wborder(window, '|', '|', '-', '-', '+', '+', '+', '+');
+}
+
+void destroy_window() {
+    endwin();
+}
+
+void some_func(char* user_input) {
+}
+
+void start_debugger(System *system) {
+    create_window();
+
+    memory_view_init(&view, system->ram);
+
+    update_panels();
+    doupdate();
+
+    int keycode;
+    while ((keycode = getch()) != CTRL_KEY_EXIT) {
+        if (keycode == CTRL_KEY_UP) {
+            memory_view_scroll(&view, -1, system->ram);
+        }
+
+        if (keycode == CTRL_KEY_DOWN) {
+            memory_view_scroll(&view, 1, system->ram);
+        }
+
+        if (keycode == CTRL_KEY_G) {
+            Dialog dialog = dialog_create("Goto Address", &some_func);
+        }
+
+        update_panels();
+        doupdate();
+    }
+
+    endwin();
+}
--- a/debugger/debugger.h
+++ b/debugger/debugger.h
@ -0,0 +1,12 @@
+//
+// Created by william on 1/6/24.
+//
+
+#include "../include/system.h"
+
+#ifndef NESEMULATOR_DEBUGGER_H
+#define NESEMULATOR_DEBUGGER_H
+
+void start_debugger(System *system);
+
+#endif //NESEMULATOR_DEBUGGER_H
--- a/debugger/dialog.c
+++ b/debugger/dialog.c
@ -0,0 +1,21 @@
+//
+// Created by william on 1/7/24.
+//
+
+#include <string.h>
+#include "dialog.h"
+
+Dialog dialog_create(char *message, void (*callback)(char *user_input)) {
+    Dialog dialog;
+    int width = (int) strlen(message) + 2;
+
+    WINDOW *window = newwin(3, width, 2, 2);
+    box(window, 0, 0);
+
+    mvwprintw(window, 0, 1, "%s", message);
+
+    dialog.panel = new_panel(window);
+    dialog.callback = callback;
+
+    return dialog;
+}
--- a/debugger/dialog.h
+++ b/debugger/dialog.h
@ -0,0 +1,18 @@
+//
+// Created by william on 1/7/24.
+//
+
+#ifndef NESEMULATOR_DIALOG_H
+#define NESEMULATOR_DIALOG_H
+
+#include <panel.h>
+
+typedef struct dialog {
+    PANEL *panel;
+
+    void (*callback)(char *user_input);
+} Dialog;
+
+Dialog dialog_create(char *message, void (*callback)(char *user_input));
+
+#endif //NESEMULATOR_DIALOG_H
--- a/debugger/memory_view.c
+++ b/debugger/memory_view.c
@ -0,0 +1,65 @@
+#include <curses.h>
+#include <panel.h>
+#include <assert.h>
+#include "memory_view.h"
+
+//
+// Created by william on 1/6/24.
+//
+
+void write_line(WINDOW *window, int line, address base_address, byte *data) {
+    mvwprintw(window, line + 2, 1, "[%04x]", base_address);
+
+    for (int i = 0; i <= MEMORY_VIEW_LINE_BYTE_COUNT; i++) {
+        mvwprintw(window, line + 2, 8 + i * 3, "%02x", data[i]);
+    }
+}
+
+void memory_view_init(MemoryView *view, ram ram) {
+    WINDOW *window = newwin(MEMORY_VIEW_HEIGHT, MEMORY_VIEW_WIDTH, 0, 0);
+    box(window, 0, 0);
+
+    mvwprintw(window, 0, 1, " MEMORY VIEW ");
+    mvwprintw(window, 1, 1, "       +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +a +b +c +d +e +f");
+
+    view->panel = new_panel(window);
+    view->base_address = 0xfc00;
+
+    memory_view_print(view, ram);
+}
+
+void memory_view_print(MemoryView *view, ram ram) {
+    for (int line = 0; line <= MEMORY_VIEW_LINE_COUNT; line++) {
+        address line_address = view->base_address + line * (MEMORY_VIEW_LINE_BYTE_COUNT + 1);
+        byte *data = &ram[line_address];
+
+        write_line(view->panel->win, line, line_address, data);
+    }
+}
+
+void memory_view_goto(MemoryView *view, address target, ram ram) {
+    assert(target < RAM_SIZE);
+
+    address max_base_address = RAM_SIZE - MEMORY_VIEW_BYTE_COUNT;
+    if (target > max_base_address) {
+        target = max_base_address;
+    }
+
+    view->base_address = target;
+    memory_view_print(view, ram);
+}
+
+void memory_view_scroll(MemoryView *view, char direction, ram ram) {
+    assert(direction == MEMORY_VIEW_DIRECTION_DOWN || direction == MEMORY_VIEW_DIRECTION_UP);
+
+    int offset = 0;
+    if (direction == MEMORY_VIEW_DIRECTION_DOWN && view->base_address > MEMORY_VIEW_LINE_BYTE_COUNT) {
+        offset -= MEMORY_VIEW_LINE_BYTE_COUNT + 1;
+    }
+    if (direction == MEMORY_VIEW_DIRECTION_UP && view->base_address < RAM_SIZE - MEMORY_VIEW_BYTE_COUNT) {
+        offset += MEMORY_VIEW_LINE_BYTE_COUNT + 1;
+    }
+
+    address target = view->base_address + offset;
+    memory_view_goto(view, target, ram);
+}
--- a/debugger/memory_view.h
+++ b/debugger/memory_view.h
@ -0,0 +1,33 @@
+//
+// Created by william on 1/6/24.
+//
+
+#ifndef NESEMULATOR_MEMORY_VIEW_H
+#define NESEMULATOR_MEMORY_VIEW_H
+
+#include <panel.h>
+#include "../include/types.h"
+
+#define MEMORY_VIEW_HEIGHT 19
+#define MEMORY_VIEW_WIDTH 56
+#define MEMORY_VIEW_LINE_COUNT 0xf
+#define MEMORY_VIEW_LINE_BYTE_COUNT 0xf
+#define MEMORY_VIEW_BYTE_COUNT 0xff
+
+#define MEMORY_VIEW_DIRECTION_UP 1
+#define MEMORY_VIEW_DIRECTION_DOWN -1
+
+typedef struct memory_view {
+    PANEL *panel;
+    address base_address;
+} MemoryView;
+
+void memory_view_init(MemoryView *view, ram ram);
+
+void memory_view_print(MemoryView *view, ram ram);
+
+void memory_view_goto(MemoryView *view, address target, ram ram);
+
+void memory_view_scroll(MemoryView *view, char direction, ram ram);
+
+#endif //NESEMULATOR_MEMORY_VIEW_H
--- a/main.c
+++ b/main.c
@ -17,26 +17,50 @@
 */
 #include <stdlib.h>
 #include <log.h>
+#include "debugger/debugger.h"

 #include "include/rom.h"
 #include "include/system.h"

-int main() {
-    log_set_level(LOG_INFO);
+//int win() {
+//    printf("NCURSES\n");
+//
+//    setlocale(LC_ALL, "");
+//    setenv("TERM", "xterm-256color", 1);
+//    setenv("TERMINFO", "/usr/share/terminfo", 1);
+//
+//    initscr();
+//    printw("Hello World !!!");
+//    refresh();
+//    getch();
+//    endwin();
+//
+//    return EXIT_SUCCESS;
+//}

-    char *rom_path = "../test_roms/nestest.nes";
+int main() {
    System system;

+    log_set_level(LOG_INFO);
    system_init(&system);

+    char *rom_path = "../test_roms/nestest.nes";
+
    if (!rom_load(rom_path, &system)) {
        system_uninit(&system);
        return EXIT_FAILURE;
    }

-    system_start(&system);
-    system_loop(&system);
-    system_uninit(&system);
+    start_debugger(&system);

-    return EXIT_SUCCESS;
+    system_uninit(&system);
+    return 0;
+//
+//    system_start(&system);
+//    system_loop(&system);
+//    system_uninit(&system);
+
+//    return EXIT_SUCCESS;
+
+//    return win();
 }