From 7f96fc5e7f412a66d460dcaa82bbdbcaea08f360 Mon Sep 17 00:00:00 2001
From: Melodi <62381002+Melodi17@users.noreply.github.com>
Date: Thu, 28 Aug 2025 12:35:24 +1000
Subject: everything is finally at peace

---
 Emulator/Chip/HIDDevice.cs | 15 ++++++++++++++-
 Emulator/DisplayEngine.cs  | 17 ++++++++++++++++-
 Emulator/Program.cs        |  2 +-
 3 files changed, 31 insertions(+), 3 deletions(-)

(limited to 'Emulator')

diff --git a/Emulator/Chip/HIDDevice.cs b/Emulator/Chip/HIDDevice.cs
index 87bb2c3..c8a7d04 100644
--- a/Emulator/Chip/HIDDevice.cs
+++ b/Emulator/Chip/HIDDevice.cs
@@ -1,5 +1,7 @@
 namespace Q1.Emulator.Chip;
 
+using System;
+
 public class HIDDevice : RamDevice
 {
     public HIDDevice(u16 start) : base(start, HIDDevice.CalculateSize()) { }
@@ -24,7 +26,7 @@ public class HIDDevice : RamDevice
         int bit = scanCode & 7;    // keyCode % 8
 
         ushort addr = (ushort) (4 + index);
-        u8 value = this.Read(addr);
+        u8 value = this.Read((u16) (this.AddressableStart + addr));
 
         if (pressed)
             value |= (u8) (1 << bit);
@@ -33,4 +35,15 @@ public class HIDDevice : RamDevice
 
         this.Write((u16) (this.AddressableStart + addr), value);
     }
+    
+    public bool GetKeyboard(int scanCode)
+    {
+        int index = scanCode >> 3;
+        int bit   = scanCode & 7;
+
+        ushort addr = (ushort) (4 + index);
+        byte value  = this.Read((u16) (this.AddressableStart + addr));
+
+        return (value & (1 << bit)) != 0;
+    }
 }
\ No newline at end of file
diff --git a/Emulator/DisplayEngine.cs b/Emulator/DisplayEngine.cs
index e5d508e..7aa8e2e 100644
--- a/Emulator/DisplayEngine.cs
+++ b/Emulator/DisplayEngine.cs
@@ -17,6 +17,7 @@ public class DisplayEngine : Game
     private SpriteBatch _spriteBatch;
 
     private Texture2D _texture;
+    private Keys[]? _oldKeys = null;
     public int Scaling { get; }
     public int Width { get; }
     public int Height { get; }
@@ -66,11 +67,25 @@ public class DisplayEngine : Game
         var mouse = Mouse.GetState();
 
         u16 mousePos = (u16) (((mouse.Y / this.Scaling) * this.Width) + (mouse.X / this.Scaling));
-        this._hid.SetMouse(mousePos,
+        this._hid.SetMouse(
+            mousePos,
             mouse.LeftButton   == ButtonState.Pressed,
             mouse.RightButton  == ButtonState.Pressed,
             mouse.MiddleButton == ButtonState.Pressed);
 
+        Keys[] keys = keyboard.GetPressedKeys();
+        foreach (Keys newKey in keys.Except(this._oldKeys ?? []))
+        {
+            this._hid.SetKeyboard((u8) newKey, true);
+        }
+        
+        foreach (Keys oldKey in this._oldKeys?.Except(keys) ?? [])
+        {
+            this._hid.SetKeyboard((u8) oldKey, false);
+        }
+
+        this._oldKeys = keys;
+
         if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed
             || keyboard.IsKeyDown(Keys.Escape)
             || this._checkAbort())
diff --git a/Emulator/Program.cs b/Emulator/Program.cs
index 26f8c26..65bf068 100644
--- a/Emulator/Program.cs
+++ b/Emulator/Program.cs
@@ -74,7 +74,7 @@ public class Program
             {
                 display.OutputTexture = tex;
                 Console.WriteLine("Display surface initialized.");
-            }, () => display.Clock(), () => false);
+            }, () => display.Clock(), () => cpu.AbortRequested);
         game.Run();
         
         Console.WriteLine("Display surface closed. Waiting for CPU thread to finish...");
-- 
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