public Byte exe_ins()
{
Byte opTime = 1;
Opcodes.Opcode op = (Opcodes.Opcode)(Program.emulator.GetMemory().ReadFromMemory(reg_pc));
// Logger.AppendLog(Logger.LOG_LEVEL.LOG_LEVEL_DEBUG, "[" + String.Format("{0:X4}", get_reg_pc()) + "]: " + String.Format("{0:X2}", op) + "PRE Execute");
if (!Enum.IsDefined(typeof(Opcodes.Opcode), op))
{
Logger.AppendLog(Logger.LOG_LEVEL.LOG_LEVEL_WARNING, "UNKNOWN OPCODE OCCURED: " + String.Format("{0:X2}", op)
+ " At Address: " + String.Format("{0:X4}", reg_pc));
set_reg_pc((UInt16)(get_reg_pc() + 1));
return(opTime);
}
// Special Execute for CB Opcodes
if (op == Opcodes.Opcode.OPCODE_INTERNAL_CB)
{
// Increase Program Counter to next location
set_reg_pc((UInt16)(get_reg_pc() + 1));
OpcodesCB.ExecuteOpcodeCB((OpcodesCB.OpcodeCB)(Program.emulator.GetMemory().ReadFromMemory(reg_pc)));
// TODO: Implement Clocks for CB Opcodes
return(opTime);
}
//Logger.AppendLog(Logger.LOG_LEVEL.LOG_LEVEL_DEBUG, "[" + String.Format("{0:X4}", get_reg_pc()) + "]: " + op.ToString() + " Executing");
Opcodes.ExecuteOpcode(op);
opTime = Opcodes.opcodeTimings.ContainsKey(op) ? Opcodes.opcodeTimings[op] : (byte)1;
return(opTime);
}
