public virtual void TestDataRegs()
{
for (int r = 0; r < 7; r++)
{
cpu.SetDataRegisterByte(r, 0xaa);
Assert.Equal(0xaa, cpu.GetDataRegisterByte(r));
Assert.Equal(0xaa, cpu.GetDataRegisterWord(r));
Assert.Equal(0xaa, cpu.GetDataRegisterLong(r));
Assert.Equal(-86, cpu.GetDataRegisterByteSigned(r));
Assert.Equal(170, cpu.GetDataRegisterWordSigned(r));
cpu.SetDataRegisterWord(r, 0xa5a5);
Assert.Equal(0xa5, cpu.GetDataRegisterByte(r));
Assert.Equal(0xa5a5, cpu.GetDataRegisterWord(r));
Assert.Equal(0xa5a5, cpu.GetDataRegisterLong(r));
Assert.Equal(-91, cpu.GetDataRegisterByteSigned(r));
Assert.Equal(-23131, cpu.GetDataRegisterWordSigned(r));
cpu.SetDataRegisterLong(r, -2054847099);
Assert.Equal(0x85, cpu.GetDataRegisterByte(r));
Assert.Equal(0x8585, cpu.GetDataRegisterWord(r));
Assert.Equal(-2054847099, cpu.GetDataRegisterLong(r));
Assert.Equal(-123, cpu.GetDataRegisterByteSigned(r));
Assert.Equal(-31355, cpu.GetDataRegisterWordSigned(r));
cpu.SetDataRegisterLong(r, 305419896);
Assert.Equal(0x78, cpu.GetDataRegisterByte(r));
Assert.Equal(0x5678, cpu.GetDataRegisterWord(r));
Assert.Equal(305419896, cpu.GetDataRegisterLong(r));
Assert.Equal(0x78, cpu.GetDataRegisterByteSigned(r));
Assert.Equal(0x5678, cpu.GetDataRegisterWordSigned(r));
}
}
protected void HandleDataRegs(string[] tokens)
{
if (tokens is null)
{
throw new ArgumentNullException(nameof(tokens));
}
string reg = tokens[0].Trim();
if (reg.Length != 2)
{
writer.WriteLine($"Bad identifier [{reg}]");
return;
}
var r = reg[1] - '0';
if (r < 0 || r > 7)
{
writer.WriteLine($"Bad identifier [{reg}]");
return;
}
if (tokens.Length == 2)
{
int value;
try
{
value = ParseInt(tokens[1]);
}
catch (FormatException)
{
writer.WriteLine($"Bad value [{tokens[1]}]");
return;
}
cpu.SetDataRegisterLong(r, value);
}
else
{
writer.WriteLine("D{0}: {1}", r.ToString("d", CultureInfo.InvariantCulture), cpu.GetDataRegisterLong(r).ToString("x", CultureInfo.InvariantCulture));
}
}