commit 664c4d4a9005eaf6484c7e53943755a07aee9415
Author: Harald Wolff <harald@das-wolff-rudel.de>
Date:   Wed Jun 14 11:25:16 2017 +0200

    Initial Commit

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..4e82d27
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,40 @@
+# Autosave files
+*~
+
+# build
+[Oo]bj/
+[Bb]in/
+packages/
+TestResults/
+
+# globs
+Makefile.in
+*.DS_Store
+*.sln.cache
+*.suo
+*.cache
+*.pidb
+*.userprefs
+*.usertasks
+config.log
+config.make
+config.status
+aclocal.m4
+install-sh
+autom4te.cache/
+*.user
+*.tar.gz
+tarballs/
+test-results/
+Thumbs.db
+
+# Mac bundle stuff
+*.dmg
+*.app
+
+# resharper
+*_Resharper.*
+*.Resharper
+
+# dotCover
+*.dotCover
diff --git a/bitworks.sln b/bitworks.sln
new file mode 100644
index 0000000..6a79b8b
--- /dev/null
+++ b/bitworks.sln
@@ -0,0 +1,23 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2012
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "hwo.bitworks", "hwo.bitworks\hwo.bitworks.csproj", "{07EE5432-46BD-4FFD-85D4-04917894FD12}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x86 = Debug|x86
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{07EE5432-46BD-4FFD-85D4-04917894FD12}.Debug|x86.ActiveCfg = Debug|x86
+		{07EE5432-46BD-4FFD-85D4-04917894FD12}.Debug|x86.Build.0 = Debug|x86
+		{07EE5432-46BD-4FFD-85D4-04917894FD12}.Release|x86.ActiveCfg = Release|x86
+		{07EE5432-46BD-4FFD-85D4-04917894FD12}.Release|x86.Build.0 = Release|x86
+	EndGlobalSection
+	GlobalSection(MonoDevelopProperties) = preSolution
+		Policies = $0
+		$0.DotNetNamingPolicy = $1
+		$1.DirectoryNamespaceAssociation = PrefixedHierarchical
+		$1.ResourceNamePolicy = FileName
+	EndGlobalSection
+EndGlobal
diff --git a/hwo.bitworks/ADD.cs b/hwo.bitworks/ADD.cs
new file mode 100644
index 0000000..c0d3c56
--- /dev/null
+++ b/hwo.bitworks/ADD.cs
@@ -0,0 +1,36 @@
+using System;
+namespace hwo.bitworks
+{
+	public class ADD : MultipleBitsSource
+	{
+
+		XOR	xor2,xor3;
+		AND and12,andC;
+		OR 	or;
+
+		public ADD(LogicBase source1,LogicBase source2,LogicBase carry)
+		{
+			and12 = new AND(source1,source2);
+			xor2 = new XOR(source1,source2);
+			andC = new AND(carry,xor2);
+			or = new OR(andC,and12);
+
+			xor3 = new XOR(source1,source2,carry);
+		}
+
+		public override bool bitValue(int bit)
+		{
+			switch (bit){
+				case 1:
+					return or.value();
+				case 0:
+					return xor3.value();
+				default:
+					throw new IndexOutOfRangeException(String.Format("ADD supplies 2 bits, but bit #{0} requested",bit));
+			}
+		}
+
+
+
+	}
+}
diff --git a/hwo.bitworks/ADDX.cs b/hwo.bitworks/ADDX.cs
new file mode 100644
index 0000000..374593e
--- /dev/null
+++ b/hwo.bitworks/ADDX.cs
@@ -0,0 +1,52 @@
+using System;
+namespace hwo.bitworks
+{
+	public class ADDX : MultipleBitsSource
+	{
+		LogicBase[] srcA,srcB;
+		ADD[] add;
+
+		public ADDX(LogicBase[] sourcesA,LogicBase[] sourcesB)
+		{
+			int l	= sourcesA.Length > sourcesB.Length ? sourcesA.Length : sourcesB.Length;
+
+			srcA	= new LogicBase[l];
+			srcB	= new LogicBase[l];
+			add		= new ADD[l];
+
+			Array.Copy(sourcesA,srcA,sourcesA.Length);
+			Array.Copy(sourcesB,srcB,sourcesB.Length);
+
+			for (int n=sourcesA.Length; n < l; n++){
+				srcA[n] = Constants.ZERO;
+			}
+			for (int n=sourcesB.Length; n < l; n++){
+				srcB[n] = Constants.ZERO;
+			}
+
+			LogicBase lb = Constants.ZERO;
+
+			for (int n=0;n<add.Length;n++){
+				add[n] = new ADD(srcA[n],srcB[n],lb);
+				lb = add[n].getLogicalBase(1);
+			}
+		}
+
+		public override int getBits()
+		{
+			return add.Length + 1;
+		}
+
+		public override bool bitValue(int bit)
+		{
+			if (bit > add.Length){
+				throw new IndexOutOfRangeException(String.Format("ADDX supplies {0} bits, but bit #{1} requested",add.Length+1,bit));
+			} else if (bit == add.Length){
+				return add[bit-1].bitValue(1);
+			} else {
+				return add[bit].bitValue(0);
+			}
+		}
+
+	}
+}
diff --git a/hwo.bitworks/AND.cs b/hwo.bitworks/AND.cs
new file mode 100644
index 0000000..4fd0510
--- /dev/null
+++ b/hwo.bitworks/AND.cs
@@ -0,0 +1,22 @@
+using System;
+namespace hwo.bitworks
+{
+	public class AND : LogicBase
+	{
+	
+		public AND(params LogicBase[] sources)
+			:base(sources){
+		}
+
+		public override bool value()
+		{
+			foreach (LogicBase source in this.sources){
+				if (!source.value()){
+					return false;
+				}
+			}
+			return true;
+		}
+
+	}
+}
diff --git a/hwo.bitworks/BitBuffer.cs b/hwo.bitworks/BitBuffer.cs
new file mode 100644
index 0000000..f989aae
--- /dev/null
+++ b/hwo.bitworks/BitBuffer.cs
@@ -0,0 +1,41 @@
+using System;
+namespace hwo.bitworks
+{
+	public class BitBuffer : MultipleBitsSource
+	{
+		bool[] bits;
+
+		public BitBuffer(int len)
+		{
+			this.bits = new bool[len];
+		}
+
+		public override int getBits()
+		{
+			return bits.Length;
+		}
+
+		public void zero(){
+			for (int n=0;n<bits.Length;n++)
+				bits[n] = false;
+		}
+
+		public void set(Int32 i){
+			zero();
+
+			int w = 32 < getBits() ? 32 : getBits();
+
+			for (int n=0;n<w;n++){
+				bits[n] = (i & (1<<n)) == 0 ? false : true;
+			}
+		}
+
+		public override bool bitValue(int bit)
+		{
+			return this.bits[ bit ];
+		}
+
+
+
+	}
+}
diff --git a/hwo.bitworks/BitFormat.cs b/hwo.bitworks/BitFormat.cs
new file mode 100644
index 0000000..c36bfee
--- /dev/null
+++ b/hwo.bitworks/BitFormat.cs
@@ -0,0 +1,17 @@
+using System;
+namespace hwo.bitworks
+{
+	public static class BitFormat
+	{
+
+		public static string toString(LogicBase[] sources){
+			char[] digits = new char[sources.Length];
+			for (int n=0;n<sources.Length;n++){
+				digits[n] = sources[sources.Length - 1 - n].value() ? '1' : '0';
+			}
+			return new string(digits);
+		}
+
+
+	}
+}
diff --git a/hwo.bitworks/Constants.cs b/hwo.bitworks/Constants.cs
new file mode 100644
index 0000000..1a76ada
--- /dev/null
+++ b/hwo.bitworks/Constants.cs
@@ -0,0 +1,32 @@
+using System;
+namespace hwo.bitworks
+{
+	public static class Constants {
+		public static readonly LogicBase ZERO = new ZERO();
+		public static readonly LogicBase ONE = new ONE();
+
+	}
+
+
+	class ZERO : LogicBase
+	{
+		public ZERO():base(new LogicBase[0]){			
+		}
+
+		public override bool value()
+		{
+			return false;
+		}
+	}
+
+	class ONE : LogicBase
+	{
+		public ONE():base(new LogicBase[0]){			
+		}
+
+		public override bool value()
+		{
+			return true;
+		}
+	}
+}
diff --git a/hwo.bitworks/LogicBase.cs b/hwo.bitworks/LogicBase.cs
new file mode 100644
index 0000000..e2948a6
--- /dev/null
+++ b/hwo.bitworks/LogicBase.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+
+namespace hwo.bitworks
+{
+	public class LogicBase
+	{
+		protected LogicBase[] sources;
+
+		public LogicBase(LogicBase[] sources)
+		{
+			this.sources = new LogicBase[sources.Length];
+			Array.Copy(sources,this.sources,sources.Length);
+		}
+
+		public virtual bool value(){
+			throw new NotImplementedException(String.Format("Class {0} doesn't implement needed method 'bool value()'",this.GetType().FullName));
+		}
+
+
+	}
+}
diff --git a/hwo.bitworks/MultipleBitsSource.cs b/hwo.bitworks/MultipleBitsSource.cs
new file mode 100644
index 0000000..aacd531
--- /dev/null
+++ b/hwo.bitworks/MultipleBitsSource.cs
@@ -0,0 +1,63 @@
+using System;
+namespace hwo.bitworks
+{
+	public class MultipleBitsSource
+	{
+		protected LogicBase[] sources;
+
+		public MultipleBitsSource()
+		{
+			this.sources = null;
+		}
+
+		public MultipleBitsSource(LogicBase[] sources)
+		{
+			this.sources = sources;
+		}
+
+		public virtual int getBits(){
+			return sources.Length;
+		}
+
+
+		public virtual bool bitValue(int bit){
+			throw new NotImplementedException(String.Format("Class {0} doesn't implement needed method 'bool bitValue(int bit)'",this.GetType().FullName));
+		}
+
+		public LogicBase getLogicalBase(int bit){
+			return new BIT(this,bit);
+		}
+
+		public LogicBase[] getLogicalBases(){
+			return getLogicalBases(0,getBits());
+		}
+		public LogicBase[] getLogicalBases(int start,int len){
+			LogicBase[] lb = new LogicBase[len];
+
+			for (int n=0;n<len;n++){
+				lb[n] = getLogicalBase(n + start);
+			}
+
+			return lb;
+		}
+
+		public class BIT : LogicBase {
+			MultipleBitsSource source;
+			int bit;
+
+			public BIT(MultipleBitsSource source,int bit)
+				:base(new LogicBase[0])
+			{
+				this.source = source;
+				this.bit = bit;
+			}
+
+			public override bool value()
+			{
+				return source.bitValue(this.bit);
+			}
+		}
+
+
+	}
+}
diff --git a/hwo.bitworks/NAND.cs b/hwo.bitworks/NAND.cs
new file mode 100644
index 0000000..f3b3d18
--- /dev/null
+++ b/hwo.bitworks/NAND.cs
@@ -0,0 +1,22 @@
+using System;
+namespace hwo.bitworks
+{
+	public class NAND : LogicBase
+	{
+	
+		public NAND(LogicBase[] sources)
+			:base(sources){
+		}
+
+		public override bool value()
+		{
+			foreach (LogicBase source in this.sources){
+				if (!source.value()){
+					return true;
+				}
+			}
+			return false;
+		}
+
+	}
+}
diff --git a/hwo.bitworks/NOR.cs b/hwo.bitworks/NOR.cs
new file mode 100644
index 0000000..a5c0a4d
--- /dev/null
+++ b/hwo.bitworks/NOR.cs
@@ -0,0 +1,21 @@
+using System;
+namespace hwo.bitworks
+{
+	public class NOR : LogicBase
+	{
+		public NOR(LogicBase[] sources)
+			:base(sources)
+		{
+		}
+
+		public override bool value()
+		{
+			foreach (LogicBase source in this.sources){
+				if (source.value()){
+					return false;
+				}
+			}
+			return true;
+		}
+	}
+}
diff --git a/hwo.bitworks/OR.cs b/hwo.bitworks/OR.cs
new file mode 100644
index 0000000..4b008d2
--- /dev/null
+++ b/hwo.bitworks/OR.cs
@@ -0,0 +1,21 @@
+using System;
+namespace hwo.bitworks
+{
+	public class OR : LogicBase
+	{
+		public OR(params LogicBase[] sources)
+			:base(sources)
+		{
+		}
+
+		public override bool value()
+		{
+			foreach (LogicBase source in this.sources){
+				if (source.value()){
+					return true;
+				}
+			}
+			return false;
+		}
+	}
+}
diff --git a/hwo.bitworks/Program.cs b/hwo.bitworks/Program.cs
new file mode 100644
index 0000000..68817fe
--- /dev/null
+++ b/hwo.bitworks/Program.cs
@@ -0,0 +1,60 @@
+using System;
+
+namespace hwo.bitworks
+{
+	class MainClass
+	{
+		public static void Main(string[] args)
+		{
+			Console.WriteLine("Give me a little time...");
+
+			test8bit();
+
+			BitBuffer bb1,bb2;
+
+			bb1 = new BitBuffer(32);
+			bb2 = new BitBuffer(32);
+
+			bb1.set(0x00aa00aa);
+			bb2.set(0x55005500);
+
+			Console.WriteLine("bb1:     {0}",BitFormat.toString(bb1.getLogicalBases()));
+			Console.WriteLine("bb2:     {0}",BitFormat.toString(bb2.getLogicalBases()));
+
+			ADDX addx = new ADDX(bb1.getLogicalBases(),bb2.getLogicalBases());
+
+			Console.WriteLine("addx:   {0}",BitFormat.toString(addx.getLogicalBases()));
+
+		}
+
+		public static void test8bit(){
+			Console.WriteLine("Test: 8bit");
+
+			BitBuffer bb1,bb2;
+
+			bb1 = new BitBuffer(8);
+			bb2 = new BitBuffer(8);
+
+			bb1.set(0x05);
+			bb2.set(0x14);
+
+			Console.WriteLine("bb1:     {0}",BitFormat.toString(bb1.getLogicalBases()));
+			Console.WriteLine("bb2:     {0}",BitFormat.toString(bb2.getLogicalBases()));
+
+			ADDX addx = new ADDX(bb1.getLogicalBases(),bb2.getLogicalBases());
+
+			Console.WriteLine("addx:   {0}",BitFormat.toString(addx.getLogicalBases()));
+
+			ShiftLeft shl = new ShiftLeft(addx.getLogicalBases(0,addx.getBits()-1),4);
+			Console.WriteLine("shl:     {0}",BitFormat.toString(shl.getLogicalBases()));
+
+			ShiftRight shr = new ShiftRight(shl.getLogicalBases(),4);
+			Console.WriteLine("shr:     {0}",BitFormat.toString(shr.getLogicalBases()));
+
+			Console.WriteLine("test ended. ---------------------");
+
+		}
+
+
+	}
+}
diff --git a/hwo.bitworks/Properties/AssemblyInfo.cs b/hwo.bitworks/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..0e9ceec
--- /dev/null
+++ b/hwo.bitworks/Properties/AssemblyInfo.cs
@@ -0,0 +1,26 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+
+// Information about this assembly is defined by the following attributes. 
+// Change them to the values specific to your project.
+
+[assembly: AssemblyTitle("hwo.bitworks")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("")]
+[assembly: AssemblyCopyright("")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// The assembly version has the format "{Major}.{Minor}.{Build}.{Revision}".
+// The form "{Major}.{Minor}.*" will automatically update the build and revision,
+// and "{Major}.{Minor}.{Build}.*" will update just the revision.
+
+[assembly: AssemblyVersion("1.0.*")]
+
+// The following attributes are used to specify the signing key for the assembly, 
+// if desired. See the Mono documentation for more information about signing.
+
+//[assembly: AssemblyDelaySign(false)]
+//[assembly: AssemblyKeyFile("")]
diff --git a/hwo.bitworks/ShiftLeft.cs b/hwo.bitworks/ShiftLeft.cs
new file mode 100644
index 0000000..18cd8aa
--- /dev/null
+++ b/hwo.bitworks/ShiftLeft.cs
@@ -0,0 +1,24 @@
+using System;
+namespace hwo.bitworks
+{
+	public class ShiftLeft : MultipleBitsSource
+	{
+		int n;
+
+		public ShiftLeft(LogicBase[] sources,int n)
+			:base(sources)
+		{
+			this.n = n;
+		}
+
+		public override bool bitValue(int bit)
+		{
+			if (bit < this.n){
+				return false;
+			} else if (bit < getBits()){
+				return sources[bit - this.n].value();
+			}
+			throw new IndexOutOfRangeException(String.Format("ShiftLeft supplies {0} bits, but bit #{1} requested",getBits(),bit));
+		}
+	}
+}
diff --git a/hwo.bitworks/ShiftRight.cs b/hwo.bitworks/ShiftRight.cs
new file mode 100644
index 0000000..05783eb
--- /dev/null
+++ b/hwo.bitworks/ShiftRight.cs
@@ -0,0 +1,25 @@
+using System;
+namespace hwo.bitworks
+{
+	public class ShiftRight : MultipleBitsSource
+	{
+		int n;
+
+		public ShiftRight(LogicBase[] sources,int n)
+			:base(sources)
+		{
+			this.n = n;
+		}
+
+		public override bool bitValue(int bit)
+		{
+			if (bit < (getBits()-this.n)){
+				return sources[bit + this.n].value();
+			} else if (bit < getBits()){
+				return false;
+			};
+
+			throw new IndexOutOfRangeException(String.Format("ShiftRight supplies {0} bits, but bit #{1} requested",getBits(),bit));
+		}
+	}
+}
diff --git a/hwo.bitworks/XOR.cs b/hwo.bitworks/XOR.cs
new file mode 100644
index 0000000..b46ed79
--- /dev/null
+++ b/hwo.bitworks/XOR.cs
@@ -0,0 +1,25 @@
+using System;
+namespace hwo.bitworks
+{
+	public class XOR : LogicBase
+	{
+		public XOR(params LogicBase[] sources)
+			:base(sources)
+		{
+		}
+
+		public override bool value()
+		{
+			bool r = false;
+
+			foreach (LogicBase source in sources){
+				if (source.value()){
+					r = !r;
+				}
+			}
+
+			return r;
+		}
+
+	}
+}
diff --git a/hwo.bitworks/hwo.bitworks.csproj b/hwo.bitworks/hwo.bitworks.csproj
new file mode 100644
index 0000000..9db6ae4
--- /dev/null
+++ b/hwo.bitworks/hwo.bitworks.csproj
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
+    <ProjectGuid>{07EE5432-46BD-4FFD-85D4-04917894FD12}</ProjectGuid>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>hwo.bitworks</RootNamespace>
+    <AssemblyName>hwo.bitworks</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug</OutputPath>
+    <DefineConstants>DEBUG;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ExternalConsole>true</ExternalConsole>
+    <PlatformTarget>x86</PlatformTarget>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release</OutputPath>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <ExternalConsole>true</ExternalConsole>
+    <PlatformTarget>x86</PlatformTarget>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="LogicBase.cs" />
+    <Compile Include="OR.cs" />
+    <Compile Include="NOR.cs" />
+    <Compile Include="AND.cs" />
+    <Compile Include="NAND.cs" />
+    <Compile Include="BitBuffer.cs" />
+    <Compile Include="MultipleBitsSource.cs" />
+    <Compile Include="ADD.cs" />
+    <Compile Include="XOR.cs" />
+    <Compile Include="ADDX.cs" />
+    <Compile Include="Constants.cs" />
+    <Compile Include="BitFormat.cs" />
+    <Compile Include="ShiftLeft.cs" />
+    <Compile Include="ShiftRight.cs" />
+  </ItemGroup>
+  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
+</Project>
\ No newline at end of file