feat: Add Ability To Draw Pixel

src/MimaSim/MimaSim/Controls/MimaComponents/DisplayControl.axaml.cs

@@ -1,13 +1,17 @@
-using Avalonia;
+using System.Collections.Generic;
+using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.Primitives;
 using Avalonia.Layout;
 using Avalonia.Media;
+using MimaSim.MIMA.Components;
 
 namespace MimaSim.Controls.MimaComponents;
 
 public partial class DisplayControl : UserControl
 {
+    public Dictionary<(int, int), Border> Pixels { get; set; } = [];
+
     public DisplayControl()
     {
         InitializeComponent();
@@ -16,6 +20,8 @@ public DisplayControl()
     protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
     {
         var grid = this.Find<Grid>("grid");
+        CPU.Instance.Display.SetDisplay(this);
+
         var stack = new StackPanel()
         {
             Spacing = 0,
@@ -40,8 +46,7 @@ protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
                     Height = 25,
                     Background = Brushes.White
                 };
-                Grid.SetRow(cell, row);
-                Grid.SetColumn(cell, col);
+                Pixels.Add((col, row), cell);
 
                 colStack.Children.Add(cell);
             }

src/MimaSim/MimaSim/MIMA/Components/CPU.cs

@@ -25,9 +25,7 @@ public class CPU
     public readonly Register SAR = new("SAR");
     public readonly Register SDR = new("SDR");
 
-    public readonly Register DC = new("DC"); // Display Color
-    public readonly Register DX = new("DX"); // Display x-pos
-    public readonly Register DY = new("DY"); // Display y-pos
+    public readonly Display Display = new();
 
     public readonly Register X = new("X");
 

src/MimaSim/MimaSim/MIMA/Components/Display.cs

@@ -1,6 +1,51 @@
-namespace MimaSim.MIMA.Components;
+using System;
+using Avalonia.Media;
+using MimaSim.Controls.MimaComponents;
+
+namespace MimaSim.MIMA.Components;
 
 public class Display
 {
-
+    public readonly Register DC = new("DC"); // Display Color
+    public readonly Register DX = new("DX"); // Display x-pos
+    public readonly Register DY = new("DY"); // Display y-pos
+
+    private DisplayControl _displayControl;
+
+    public void SetDisplay(DisplayControl displayControl)
+    {
+        _displayControl = displayControl;
+    }
+
+    public void SetPixel()
+    {
+        var colorIndex = DC.GetValueWithoutNotification();
+        var x = DX.GetValueWithoutNotification();
+        var y = DY.GetValueWithoutNotification();
+
+        var color = (DisplayColor)colorIndex;
+
+        _displayControl.Pixels[(x, y)].Background = GetBrush(color);
+    }
+
+    private IBrush GetBrush(DisplayColor color)
+    {
+        return color switch
+        {
+            DisplayColor.Red => Brushes.Red,
+            DisplayColor.Green => Brushes.Green,
+            DisplayColor.Blue => Brushes.Blue,
+            DisplayColor.Yellow => Brushes.Yellow,
+            DisplayColor.Cyan => Brushes.Cyan,
+            DisplayColor.Magenta => Brushes.Magenta,
+            DisplayColor.Orange => Brushes.Orange,
+            DisplayColor.Purple => Brushes.Purple,
+            DisplayColor.Pink => Brushes.Pink,
+            DisplayColor.Brown => Brushes.Brown,
+            DisplayColor.Gray => Brushes.Gray,
+            DisplayColor.Black => Brushes.Black,
+            DisplayColor.White => Brushes.White,
+            _ => throw new ArgumentOutOfRangeException(nameof(color), color, null)
+        };
+    }
 }

src/MimaSim/MimaSim/MIMA/Components/DisplayColor.cs

@@ -0,0 +1,18 @@
+namespace MimaSim.MIMA.Components;
+
+public enum DisplayColor
+{
+    Red,
+    Green,
+    Blue,
+    Yellow,
+    Cyan,
+    Magenta,
+    Orange,
+    Purple,
+    Pink,
+    Brown,
+    Gray,
+    Black,
+    White
+}