public static String GetOpcodeCB(OpcodeCB opcode, ref UInt16 address)
{
String str_op = "nop";
switch (opcode)
{
case OpcodeCB.OPCODE_CB_SWAP_A:
str_op = "[CB] SWAP A";
address += 2;
break;
case OpcodeCB.OPCODE_CB_BIT_7_H:
str_op = "[CB] BIT 7 H";
address += 1;
break;
case OpcodeCB.OPCODE_CB_RL_C_CF:
str_op = "[CB] RL C (CF)";
address += 1;
break;
case OpcodeCB.OPCODE_CB_RES_B_A:
str_op = "[CB] RES A, 0";
address += 1;
break;
default:
str_op = "[CB] UNKNOWN";
address += 1;
break;
}
return(str_op);
}
public override string ToString()
{
var operand =
OperandType == OperandType.Byte ? string.Format(" 0x{0:x2}", Immediate) :
OperandType == OperandType.Word ? string.Format(" 0x{0:x4}", Immediate) :
"";
string opcodeStr;
switch (Opcode)
{
case Z80Opcode.PrefixCB:
opcodeStr = OpcodeCB.ToString();
break;
case Z80Opcode.PrefixDD:
switch (OpcodeDD)
{
case Z80OpcodeDD.PrefixDDCB:
opcodeStr = OpcodeDDCB.ToString();
break;
default:
opcodeStr = OpcodeDD.ToString();
break;
}
break;
case Z80Opcode.PrefixED:
opcodeStr = OpcodeED.ToString();
break;
case Z80Opcode.PrefixFD:
switch (OpcodeFD)
{
case Z80OpcodeFD.PrefixFDCB:
opcodeStr = OpcodeFDCB.ToString();
break;
default:
opcodeStr = OpcodeFD.ToString();
break;
}
break;
default:
opcodeStr = Opcode.ToString();
break;
}
return(string.Format(
"{0}{1}",
opcodeStr,
operand));
}
public static void ExecuteOpcodeCB(OpcodeCB opcode)
{
if (opcodesCB[opcode] != null)
{
opcodesCB[opcode].Invoke();
}
else
{
UInt16 address = cpu.get_reg_pc();
cpu.set_reg_pc((UInt16)(address + 1));
Logger.AppendLog(Logger.LOG_LEVEL.LOG_LEVEL_DEBUG, "Trying to execute not implemented opcode: CB " + opcode.ToString());
}
}