public void Step(int cycles)
{
while (cycles > 0)
{
cycles--;
byte a = SystemMemory.ReadByte(m_CodeEngine.PC);
byte b = SystemMemory.ReadByte(m_CodeEngine.PC + 1);
ushort data = Tools.Create16(a, b);
ChipOpCode opcode = Disassembler.DecodeInstruction(data);
//Console.WriteLine("Instuction: " + opcode.ToString());
//Console.WriteLine(m_CodeEngine.PC.ToString("X2") + " " + opcode.ToString());
ChipInstruction inst = new ChipInstruction(data, opcode);
inst.Address = m_CodeEngine.PC;
m_CodeEngine.IncrementPC();
if (m_PatchEngine.PatchAddress(m_CodeEngine, (ushort)(m_CodeEngine.PC - 2)))
{
continue;
}
if (opcode == ChipOpCode.Unknown)
{
if (data != 0)
{
//Console.WriteLine(m_CodeEngine.PC.ToString("X2"));
Console.WriteLine("Syscall: " + inst.NNN.ToString("x"));
if (m_UseHybridDynarec)
{
if (inst.NNN < SystemMemory.Size)
{
m_HybridDynarec.Execute(inst.NNN, m_CodeEngine);
}
else
{
Console.WriteLine("1802 Call is beyond memory bounds! (" + inst.NNN.ToString("X4") + ")");
}
}
else
{
Console.WriteLine("Syscall Emitter Disabled!");
}
}
else
{
Console.WriteLine("Warning: 0 opcode doing Nop!");
}
}
else
{
m_CodeEngine.Call(inst);
}
}
}
public void CountOpcode(ChipOpCode code)
{
if (m_Stop)
{
return;
}
int count = 0;
if (m_Counts.TryGetValue(code, out count))
{
m_Counts[code] = ++count;
}
else
{
m_Counts.Add(code, 1);
}
}
public ChipInstruction(ushort instruction, ChipOpCode opCode)
{
this.m_Instruction = instruction;
this.m_Opcode = opCode;
}
public OpcodeTag(ChipOpCode opcode)
{
this.m_Opcode = opcode;
}
