mirror of
https://github.com/MoleskiCoder/EightBitNet.git
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72932cf462
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
112 lines
3.7 KiB
C#
112 lines
3.7 KiB
C#
// <copyright file="AdcTests.cs" company="Adrian Conlon">
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// Copyright (c) Adrian Conlon. All rights reserved.
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// </copyright>
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namespace EightBit
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{
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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[TestClass]
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public class AdcTests
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{
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private readonly Board board = new Board();
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private readonly MC6809 cpu;
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public AdcTests() => this.cpu = this.board.CPU;
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[TestInitialize]
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public void Initialise()
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{
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this.board.RaisePOWER();
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this.cpu.Step(); // Step over the reset
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}
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[TestCleanup]
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public void Cleanup() => this.board.LowerPOWER();
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[TestMethod]
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public void TestImmediate()
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{
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this.board.Poke(0, 0x89);
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this.board.Poke(1, 0x7c);
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this.cpu.CC = EightBit.Chip.SetFlag(this.cpu.CC, (byte)StatusBits.CF);
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this.cpu.A = 0x3a;
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this.cpu.Step();
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Assert.AreEqual(0xb7, this.cpu.A);
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Assert.AreEqual(0, this.cpu.Zero);
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Assert.AreNotEqual(0, this.cpu.HalfCarry);
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Assert.AreNotEqual(0, this.cpu.Overflow);
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Assert.AreNotEqual(0, this.cpu.Negative);
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Assert.AreEqual(0, this.cpu.Carry);
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Assert.AreEqual(2, this.cpu.Cycles);
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}
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[TestMethod]
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public void TestImmediateADCANoC1()
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{
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this.cpu.A = 0x5;
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this.cpu.CC = 0;
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this.board.Poke(0, 0x89);
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this.board.Poke(1, 0x02);
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this.cpu.Step();
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Assert.AreEqual(7, this.cpu.A);
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Assert.AreEqual(0, this.cpu.Carry);
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Assert.AreEqual(0, this.cpu.Overflow);
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Assert.AreEqual(0, this.cpu.Zero);
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Assert.AreEqual(0, this.cpu.Negative);
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Assert.AreEqual(0, this.cpu.HalfCarry);
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Assert.AreEqual(2, this.cpu.Cycles);
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}
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/* Test half-carry $E + $2 = $10 */
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[TestMethod]
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public void TestImmediateADCANoC2()
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{
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this.cpu.A = 0xe;
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this.cpu.CC = 0;
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this.board.Poke(0, 0x89);
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this.board.Poke(1, 0x02);
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this.cpu.Step();
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Assert.AreEqual(0x10, this.cpu.A);
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Assert.AreEqual(0, this.cpu.Carry);
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Assert.AreEqual(0, this.cpu.Overflow);
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Assert.AreEqual(0, this.cpu.Zero);
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Assert.AreEqual(0, this.cpu.Negative);
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Assert.AreNotEqual(0, this.cpu.HalfCarry);
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Assert.AreEqual(2, this.cpu.Cycles);
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}
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/* Add $22 and carry to register A ($14) */
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[TestMethod]
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public void TestImmediateADCAWiC()
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{
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this.cpu.A = 0x14;
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this.cpu.CC = (byte)(StatusBits.CF | StatusBits.HF);
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this.board.Poke(0, 0x89);
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this.board.Poke(1, 0x22);
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this.cpu.Step();
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Assert.AreEqual(0x37, this.cpu.A);
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Assert.AreEqual(0, this.cpu.Carry);
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Assert.AreEqual(0, this.cpu.Overflow);
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Assert.AreEqual(0, this.cpu.Zero);
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Assert.AreEqual(0, this.cpu.Negative);
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Assert.AreEqual(0, this.cpu.HalfCarry);
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Assert.AreEqual(2, this.cpu.Cycles);
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}
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/* Test that half-carry is set when adding with a carry */
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[TestMethod]
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public void TestImmediateADCAWiHC()
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{
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this.cpu.A = 0x14;
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this.cpu.CC = (byte)StatusBits.CF;
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this.board.Poke(0, 0x89);
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this.board.Poke(1, 0x2B);
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this.cpu.Step();
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Assert.AreEqual(0x40, this.cpu.A);
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Assert.AreEqual(0, this.cpu.Carry);
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Assert.AreNotEqual(0, this.cpu.HalfCarry);
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Assert.AreEqual(2, this.cpu.Cycles);
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}
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}
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} |