Add Z80 processor (untested, but complete)

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
2026-04-21 12:16:55 +00:00 · 2019-02-16 21:32:34 +00:00
parent 3108a373d7
commit ea82c58777
11 changed files with 2213 additions and 14 deletions
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Z80")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("Z80")]
+[assembly: AssemblyCopyright("Copyright ©  2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("c00648c1-bac1-4efb-816f-e87c091619d7")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
@@ -0,0 +1,59 @@
+namespace EightBit
+{
+    public struct RefreshRegister
+    {
+        private readonly byte high;
+        private byte variable;
+
+        public RefreshRegister(byte value)
+        {
+            this.high = (byte)(value & (byte)Bits.Bit7);
+            this.variable = (byte)(value & (byte)Mask.Mask7);
+        }
+
+        public static implicit operator byte(RefreshRegister input)
+        {
+            return ToByte(input);
+        }
+
+        public static implicit operator RefreshRegister(byte input)
+        {
+            return FromByte(input);
+        }
+
+        public static byte ToByte(RefreshRegister input)
+        {
+            return (byte)((input.high << 7) | input.variable);
+        }
+
+        public static RefreshRegister FromByte(byte input)
+        {
+            return new RefreshRegister(input);
+        }
+
+        public static RefreshRegister operator ++(RefreshRegister value) => Increment(value);
+
+        public static bool operator ==(RefreshRegister left, RefreshRegister right) => left.Equals(right);
+
+        public static bool operator !=(RefreshRegister left, RefreshRegister right) => !(left == right);
+
+        public static RefreshRegister Increment(RefreshRegister value)
+        {
+            ++value.variable;
+            return value;
+        }
+
+        public override bool Equals(object obj)
+        {
+            if (!(obj is RefreshRegister))
+            {
+                return false;
+            }
+
+            var rhs = (RefreshRegister)obj;
+            return rhs.high == this.high && rhs.variable == this.variable;
+        }
+
+        public override int GetHashCode() => this.high + this.variable;
+    }
+}
@@ -0,0 +1,39 @@
+// <copyright file="StatusBits.cs" company="Adrian Conlon">
+// Copyright (c) Adrian Conlon. All rights reserved.
+// </copyright>
+
+namespace EightBit
+{
+    using System;
+
+    [Flags]
+    public enum StatusBits
+    {
+        // Negative
+        SF = Bits.Bit7,
+
+        // Zero
+        ZF = Bits.Bit6,
+
+        // Undocumented Y flag
+        YF = Bits.Bit5,
+
+        // Half carry
+        HC = Bits.Bit4,
+
+        // Undocumented X flag
+        XF = Bits.Bit3,
+
+        // Parity
+        PF = Bits.Bit2,
+
+        // Zero
+        VF = Bits.Bit2,
+
+        // Negative?
+        NF = Bits.Bit1,
+
+        // Carry
+        CF = Bits.Bit0,
+    }
+}
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{C00648C1-BAC1-4EFB-816F-E87C091619D7}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Z80</RootNamespace>
+    <AssemblyName>Z80</AssemblyName>
+    <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <Deterministic>true</Deterministic>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <LangVersion>latest</LangVersion>
+    <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="RefreshRegister.cs" />
+    <Compile Include="StatusBits.cs" />
+    <Compile Include="Z80.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\EightBit\EightBit.csproj">
+      <Project>{6ebf8857-62a3-4ef4-af21-c1844031d7e4}</Project>
+      <Name>EightBit</Name>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+</Project>