#2 Added GraphicsMode enum

hagronnestad · Mar 29, 2020 · 32facd3 · 32facd3
1 parent a7e619e
commit 32facd3
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diff --git a/ComputerSystems/Commodore64/Commodore64.csproj b/ComputerSystems/Commodore64/Commodore64.csproj
@@ -58,6 +58,7 @@
     <Compile Include="C64MemoryValues.cs" />
     <Compile Include="C64MemoryOffsets.cs" />
     <Compile Include="Colors.cs" />
+    <Compile Include="Enums\GraphicsMode.cs" />
     <Compile Include="Enums\PetsciiCode.cs" />
     <Compile Include="FormC64Screen.cs">
       <SubType>Form</SubType>

diff --git a/ComputerSystems/Commodore64/Enums/GraphicsMode.cs b/ComputerSystems/Commodore64/Enums/GraphicsMode.cs
@@ -0,0 +1,17 @@
+namespace Commodore64.Enums {
+
+    /// <summary>
+    /// GraphicsMode as defined by MCM (bit 4 in $D016), BMM (bit 5 in $D011) and ECM (bit 6 in $D011)
+    /// Source: https://www.c64-wiki.com/wiki/Graphics_Modes#Implementation
+    /// </summary>
+    public enum GraphicsMode {
+        StandardCharacterMode = 0b000,
+        MultiColorCharacterMode = 0b001,
+        StandardBitmapMode = 0b010,
+        MulticolorBitmapMode = 0b011,
+        ExtendedBackgroundColorMode = 0b100,
+        UNOFFICIAL_ExtendedBackgroundColorMulticolorCharacterMode = 0b101,
+        UNOFFICIAL_ExtendedBackgroundColorStandardBitmapMode = 0b110,
+        UNOFFICIAL_ExtendedBackgroundColorMulticolorBitmapMode = 0b111
+    }
+}