Function CopyProtectionDonglePDL

source/CopyProtectionDongles.cpp:123–168

Returns the copy protection dongle state of PDL(n). A return value of -1 means not used by copy protection dongle

// Returns the copy protection dongle state of PDL(n). A return value of -1 means not used by copy protection dongle
int CopyProtectionDonglePDL(UINT pdl)
{
	if (copyProtectionDongleType == DT_HAYDENCOMPILER && pdl == 3)
	{
		static BYTE haydenValue[4] = {0xFF, 0x96, 0x96, 0x50};	// Derived from reverse-engineered Hayden code - although other than 0xFF, actual values are unknown.
		UINT haydenDongleMode = ((UINT)MemGetAnnunciator(2) << 1) | (UINT)MemGetAnnunciator(0);
		return haydenValue[haydenDongleMode];
	}

	//

	if (copyProtectionDongleType != DT_ROBOCOM500 && copyProtectionDongleType != DT_ROBOCOM1000 && copyProtectionDongleType != DT_ROBOCOM1500)
		return -1;

	bool roboComInterfaceModulePower = !MemGetAnnunciator(3);
	if (!roboComInterfaceModulePower || pdl != 3)
		return -1;

	UINT roboComInterfaceModuleMode = ((UINT)MemGetAnnunciator(2) << 2) | ((UINT)MemGetAnnunciator(1) << 1) | (UINT)MemGetAnnunciator(0);

	switch (copyProtectionDongleType)
	{
		case DT_ROBOCOM500:
		{
			static BYTE robo500_lo[8] = { 0x3F,0x2E,0x54,0x54,0x2E,0x22,0x72,0x17 };	// PDL3 lower bound - see GH#1247
			static BYTE robo500_hi[8] = { 0x6F,0x54,0x94,0x94,0x54,0x40,0xC4,0x2E };	// PDL3 upper bound - see GH#1247
			// This mean value gives values that are very close to the actual 1000 & 1500 Module Interfaces - so assume it's similar for the 500 series.
			return (robo500_lo[roboComInterfaceModuleMode] + robo500_hi[roboComInterfaceModuleMode] - 1) / 2;
		}

		case DT_ROBOCOM1000:
		{
			static BYTE robo1000[8] = { 34,151,48,64,113,113,64,85 };	// Actual Module Interface values for PDL3
			return robo1000[roboComInterfaceModuleMode];
		}

		case DT_ROBOCOM1500:
		{
			static BYTE robo1500[8] = { 153,34,64,34,48,86,114,48 };	// Actual Module Interface values for PDL3
			return robo1500[roboComInterfaceModuleMode];
		}

		default:
			return -1;
	}
}

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