protected void DumpInfo()
{
writer.WriteLine();
writer.WriteLine("D0: {0} D4: {1} A0: {2} A4: {3} PC: {4}",
cpu.GetDataRegisterLong(0).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetDataRegisterLong(4).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(0).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(4).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetPC().ToString("x8", CultureInfo.InvariantCulture));
writer.WriteLine("D1: {0} D5: {1} A1: {2} A5: {3} SR: {4} {5}",
cpu.GetDataRegisterLong(1).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetDataRegisterLong(5).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(1).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(5).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetSR().ToString("x4", CultureInfo.InvariantCulture),
MakeFlagView());
writer.WriteLine("D2: {0} D6: {1} A2: {2} A6: {3} USP: {4}",
cpu.GetDataRegisterLong(2).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetDataRegisterLong(6).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(2).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(6).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetUSP());
writer.WriteLine("D3: {0} D7: {1} A3: {2} A7: {3} SSP: {4}",
cpu.GetDataRegisterLong(3).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetDataRegisterLong(7).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(3).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetAddrRegisterLong(7).ToString("x8", CultureInfo.InvariantCulture),
cpu.GetSSP().ToString("x8", CultureInfo.InvariantCulture));
buffer.Clear();
int addr = cpu.GetPC();
if (addr < 0 || addr >= memory.Size())
{
buffer.Append($"{addr.ToString("x8", CultureInfo.InvariantCulture)} ????");
}
else
{
int opcode = cpu.ReadMemoryWord(addr);
IInstruction i = cpu.GetInstructionFor(opcode);
DisassembledInstruction di = i.Disassemble(addr, opcode);
if (showBytes)
{
di.FormatInstruction(buffer);
}
else
{
di.ShortFormat(buffer);
}
}
writer.WriteLine($"==> {buffer}{Environment.NewLine}");
}
protected void HandleDisassemble(string[] tokens)
{
if (tokens is null)
{
throw new ArgumentNullException(nameof(tokens));
}
int start;
int num_instructions = 8;
if (tokens.Length > 2)
{
try
{
num_instructions = ParseInt(tokens[2]);
}
catch (FormatException)
{
writer.WriteLine($"Invalid instruction count: {tokens[2]}");
return;
}
}
if (tokens.Length > 1)
{
string address = tokens[1];
try
{
start = ParseInt(address);
}
catch (FormatException)
{
writer.WriteLine($"Unknown address [{address}]");
return;
}
}
else
{
start = cpu.GetPC();
}
int count = 0;
buffer = new StringBuilder(80);
while (start < memory.Size() && count < num_instructions)
{
buffer.Clear();
int opcode = cpu.ReadMemoryWord(start);
IInstruction i = cpu.GetInstructionFor(opcode);
DisassembledInstruction di = i.Disassemble(start, opcode);
if (showBytes)
{
di.FormatInstruction(buffer);
}
else
{
di.ShortFormat(buffer);
}
writer.WriteLine(buffer.ToString());
start += di.Size();
count++;
}
}