public void Execute()
{
Word[] program = WordTest.MakeArray(
// 処理: GR1 中の '1' のビットの個数を数える。
// 出力: GR0: GR1 中の '1' のビットの個数。
0x1010, 0x000F, // 0000: LD GR1,DATA,0 ;
0x2522, // 0002: SUBA GR2,GR2 ; Count = 0
0x3411, // 0003: AND GR1,GR1 ; 全部のビットが '0'?
0x6300, 0x000D, // 0004: JZE RETURN ; 全部のビットが '0' なら終了
0x1222, 0x0001, // 0006: MORE LAD GR2,1,GR2 ; Count = Count + 1
0x1201, 0xffff, // 0008: LAD GR0,-1,GR1 ; 最下位の '1' のビット 1 個を
0x3410, // 000A: AND GR1,GR0 ; '0' に変える。
0x6200, 0x0006, // 000B: JNZ MORE ; '1' のビットが残っていれば繰返し
0x1402, // 000D: RETURN LD GR0,GR2 ; GR0 = Count
0x8100, // 000E: RET ; 呼び出しプログラムへ戻る。
0x1234 // 000F: DATA DC 0x1234 ; 0001 0010 0011 0100 => '1' は 5 つ
);
ExecutableModule exeModule = new ExecutableModule(LoadAddress, StartAddress, program);
CheckExecute(exeModule, true, "指定の実行可能モジュールを実行する");
const UInt16 Expected = 5;
Word actualWord = m_cpu.RegisterSet.GR[0].Value;
WordTest.Check(actualWord, Expected, "GR0: GR1 中の '1' のビットの個数");
}
private void CheckFetch(UInt16 expectedContents, UInt16 expectedPr, String message)
{
Word word = Fetcher.Fetch(m_pr, m_memory);
WordTest.Check(word, expectedContents, "Contents: " + message);
CpuRegisterTest.Check(m_pr, expectedPr, "PR: " + message);
}
private void CheckShiftResult(
Alu.ShiftMethod shiftMethod, UInt16 ui16Val, UInt16 count, UInt16 expected, String message)
{
Word word1 = new Word(ui16Val);
Word word2 = new Word(count);
UInt16 notUsed;
Word resultWord = shiftMethod(word1, word2, out notUsed);
WordTest.Check(resultWord, expected, message);
}
private void CheckReadWrite(UInt16 ui16Addr, Word wordWrite, String message)
{
// 書き込んだ語が読み出せること。
Word wordAddr = new Word(ui16Addr);
m_memory.Write(wordAddr, wordWrite);
Word wordRead = m_memory.Read(wordAddr);
WordTest.Check(wordWrite, wordRead, message);
}
private void CheckArithmeticOp(
Int16 i16Val1, Int16 i16Val2, Int16 expectedResult, Boolean expectedOverflow, String message)
{
Word word1 = new Word(i16Val1);
Word word2 = new Word(i16Val2);
Boolean actualOverflow;
Word resultWord = m_operationMethodToTest(word1, word2, out actualOverflow);
WordTest.Check(resultWord, expectedResult, "Result: " + message);
Assert.AreEqual(expectedOverflow, actualOverflow, "Overflow: " + message);
}
public void Indexer_Value()
{
MemoryOffset Index = MemoryOffset.Zero;
m_words.Add(Word.Zero);
Word wordSet = new Word(0x1234);
m_words[Index] = wordSet;
Word wordGot = m_words[Index];
WordTest.Check(wordSet, wordGot, "設定した値が取得できる");
}
public void CheckRegister(UInt16 xR2Field, Boolean success, UInt16 expected, String message)
{
try
{
OperandHandler target = OperandHandler.Register;
Word r2 = target.GetOperand(xR2Field, m_registerSet, m_memory);
Assert.IsTrue(success, message);
WordTest.Check(r2, expected, message);
}
catch (Casl2SimulatorException)
{
Assert.IsFalse(success, message);
}
}
public void CheckEffectiveAddress(UInt16 xR2Field, Boolean success, UInt16 expected, String message)
{
m_registerSet.PR.Value = NextAddress;
try
{
OperandHandler target = OperandHandler.EffectiveAddress;
Word effectiveAddress = target.GetOperand(xR2Field, m_registerSet, m_memory);
Assert.IsTrue(success, message);
WordTest.Check(effectiveAddress, expected, message);
}
catch (Casl2SimulatorException)
{
Assert.IsFalse(success, message);
}
}
public void EaContents()
{
const UInt16 X = 6;
const UInt16 Adr = 1111;
const UInt16 Gr6 = 2222;
const UInt16 EffectiveAddress = Adr + Gr6;
const UInt16 EaContents = 0xaa55;
m_memory.Write(NextAddress, Adr);
m_memory.Write(EffectiveAddress, EaContents);
m_registerSet.GR[X].Value = Gr6;
m_registerSet.PR.Value = NextAddress;
OperandHandler target = OperandHandler.EaContents;
Word word = target.GetOperand(X, m_registerSet, m_memory);
const UInt16 Expected = EaContents;
WordTest.Check(word, Expected, "実効アドレスの内容を取得する");
}
internal static void Check(Memory mem, UInt16 ui16Addr, UInt16 expected, String message)
{
Word wordRead = mem.Read(ui16Addr);
WordTest.Check(wordRead, expected, message);
}