EightBitNet/MC6809/MC6809.UnitTest/AbxTests.cs
Adrian Conlon 0ab5da10ef add unit tests (not complete) for 6809 processor. Fix matters arising.
Signed-off-by: Adrian Conlon <adrian.conlon@gmail.com>
2019-04-21 04:47:36 +01:00

85 lines
2.6 KiB
C#

namespace EightBit
{
using Microsoft.VisualStudio.TestTools.UnitTesting;
[TestClass]
public class AbxTests
{
private readonly Board board = new Board();
private readonly MC6809 cpu;
public AbxTests()
{
this.cpu = this.board.CPU;
this.board.Poke(0, 0x3a);
}
[TestInitialize]
public void Initialise()
{
this.board.RaisePOWER();
this.cpu.Step(); // Step over the reset
}
[TestCleanup]
public void Cleanup() => this.board.LowerPOWER();
[TestMethod]
public void TestInherent()
{
this.cpu.B = 0x84;
this.cpu.X.Word = 0x1097;
this.cpu.Step();
Assert.AreEqual(0x111b, this.cpu.X.Word);
Assert.AreEqual(3, this.cpu.Cycles);
}
[TestMethod]
public void TestInherentABX1()
{
this.cpu.A = 0;
this.cpu.B = 0xce;
this.cpu.X.Word = 0x8006;
this.cpu.Y.Word = 0;
this.cpu.U.Word = 0;
this.cpu.CC = 0;
this.cpu.Step();
Assert.AreEqual(0, this.cpu.A);
Assert.AreEqual(0xce, this.cpu.B);
Assert.AreEqual(0x80d4, this.cpu.X.Word);
Assert.AreEqual(0, this.cpu.Y.Word);
Assert.AreEqual(0, this.cpu.U.Word);
Assert.AreEqual(0, this.cpu.Carry);
Assert.AreEqual(0, this.cpu.Overflow);
Assert.AreEqual(0, this.cpu.Zero);
Assert.AreEqual(0, this.cpu.Negative);
Assert.AreEqual(0, this.cpu.HalfCarry);
Assert.AreEqual(3, this.cpu.Cycles);
}
[TestMethod]
public void TestInherentABX2()
{
this.cpu.A = 0;
this.cpu.B = 0xd6;
this.cpu.X.Word = 0x7ffe;
this.cpu.Y.Word = 0;
this.cpu.U.Word = 0;
this.cpu.CC = (byte)(StatusBits.CF | StatusBits.VF | StatusBits.ZF);
this.cpu.Step();
Assert.AreEqual(0, this.cpu.A);
Assert.AreEqual(0xd6, this.cpu.B);
Assert.AreEqual(0x80d4, this.cpu.X.Word);
Assert.AreEqual(0, this.cpu.Y.Word);
Assert.AreEqual(0, this.cpu.U.Word);
Assert.AreNotEqual(0, this.cpu.Carry);
Assert.AreNotEqual(0, this.cpu.Overflow);
Assert.AreNotEqual(0, this.cpu.Zero);
Assert.AreEqual(0, this.cpu.Negative);
Assert.AreEqual(0, this.cpu.HalfCarry);
Assert.AreEqual(3, this.cpu.Cycles);
}
}
}